diff options
Diffstat (limited to 'drivers/media/video/samsung/mali/linux')
38 files changed, 6571 insertions, 0 deletions
diff --git a/drivers/media/video/samsung/mali/linux/license/gpl/mali_kernel_license.h b/drivers/media/video/samsung/mali/linux/license/gpl/mali_kernel_license.h new file mode 100644 index 0000000..52bb5e0 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/license/gpl/mali_kernel_license.h @@ -0,0 +1,31 @@ +/* + * Copyright (C) 2010, 2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_kernel_license.h + * Defines for the macro MODULE_LICENSE. + */ + +#ifndef __MALI_KERNEL_LICENSE_H__ +#define __MALI_KERNEL_LICENSE_H__ + +#ifdef __cplusplus +extern "C" +{ +#endif + +#define MALI_KERNEL_LINUX_LICENSE "GPL" +#define MALI_LICENSE_IS_GPL 1 + +#ifdef __cplusplus +} +#endif + +#endif /* __MALI_KERNEL_LICENSE_H__ */ diff --git a/drivers/media/video/samsung/mali/linux/mali_dma_buf.c b/drivers/media/video/samsung/mali/linux/mali_dma_buf.c new file mode 100644 index 0000000..4dd711f --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_dma_buf.c @@ -0,0 +1,392 @@ +/* + * Copyright (C) 2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include <linux/fs.h> /* file system operations */ +#include <asm/uaccess.h> /* user space access */ +#include <linux/dma-buf.h> +#include <linux/scatterlist.h> +#include <linux/rbtree.h> + +#include "mali_ukk.h" +#include "mali_osk.h" +#include "mali_kernel_common.h" +#include "mali_session.h" +#include "mali_kernel_linux.h" + +#include "mali_kernel_memory_engine.h" +#include "mali_memory.h" + +#include "mali_kernel_sysfs.h" + + +struct mali_dma_buf_attachment { + struct dma_buf *buf; + struct dma_buf_attachment *attachment; + struct sg_table *sgt; + _mali_osk_atomic_t ref; + struct rb_node rb_node; +}; + +static struct rb_root mali_dma_bufs = RB_ROOT; +static DEFINE_SPINLOCK(mali_dma_bufs_lock); + +static inline struct mali_dma_buf_attachment *mali_dma_buf_lookup(struct rb_root *root, struct dma_buf *target) +{ + struct rb_node *node = root->rb_node; + struct mali_dma_buf_attachment *res; + + spin_lock(&mali_dma_bufs_lock); + while (node) + { + res = rb_entry(node, struct mali_dma_buf_attachment, rb_node); + + if (target < res->buf) node = node->rb_left; + else if (target > res->buf) node = node->rb_right; + else + { + _mali_osk_atomic_inc(&res->ref); + spin_unlock(&mali_dma_bufs_lock); + return res; + } + } + spin_unlock(&mali_dma_bufs_lock); + + return NULL; +} + +static void mali_dma_buf_add(struct rb_root *root, struct mali_dma_buf_attachment *new) +{ + struct rb_node **node = &root->rb_node; + struct rb_node *parent = NULL; + struct mali_dma_buf_attachment *res; + + spin_lock(&mali_dma_bufs_lock); + while (*node) + { + parent = *node; + res = rb_entry(*node, struct mali_dma_buf_attachment, rb_node); + + if (new->buf < res->buf) node = &(*node)->rb_left; + else node = &(*node)->rb_right; + } + + rb_link_node(&new->rb_node, parent, node); + rb_insert_color(&new->rb_node, &mali_dma_bufs); + + spin_unlock(&mali_dma_bufs_lock); + + return; +} + + +static void mali_dma_buf_release(void *ctx, void *handle) +{ + struct mali_dma_buf_attachment *mem; + u32 ref; + + mem = (struct mali_dma_buf_attachment *)handle; + + MALI_DEBUG_ASSERT_POINTER(mem); + MALI_DEBUG_ASSERT_POINTER(mem->attachment); + MALI_DEBUG_ASSERT_POINTER(mem->buf); + + spin_lock(&mali_dma_bufs_lock); + ref = _mali_osk_atomic_dec_return(&mem->ref); + + MALI_DEBUG_ASSERT(ref >= 0); + + if (0 == ref) + { + rb_erase(&mem->rb_node, &mali_dma_bufs); + spin_unlock(&mali_dma_bufs_lock); + + MALI_DEBUG_ASSERT(0 == _mali_osk_atomic_read(&mem->ref)); + + dma_buf_unmap_attachment(mem->attachment, mem->sgt, DMA_BIDIRECTIONAL); + + dma_buf_detach(mem->buf, mem->attachment); + dma_buf_put(mem->buf); + + _mali_osk_free(mem); + } + else + { + spin_unlock(&mali_dma_bufs_lock); + } +} + +/* Callback from memory engine which will map into Mali virtual address space */ +static mali_physical_memory_allocation_result mali_dma_buf_commit(void* ctx, mali_allocation_engine * engine, mali_memory_allocation * descriptor, u32* offset, mali_physical_memory_allocation * alloc_info) +{ + struct mali_session_data *session; + struct mali_page_directory *pagedir; + struct mali_dma_buf_attachment *mem; + struct scatterlist *sg; + int i; + u32 virt; + + MALI_DEBUG_ASSERT_POINTER(ctx); + MALI_DEBUG_ASSERT_POINTER(engine); + MALI_DEBUG_ASSERT_POINTER(descriptor); + MALI_DEBUG_ASSERT_POINTER(offset); + MALI_DEBUG_ASSERT_POINTER(alloc_info); + + /* Mapping dma-buf with an offset is not supported. */ + MALI_DEBUG_ASSERT(0 == *offset); + + virt = descriptor->mali_address; + session = (struct mali_session_data *)descriptor->mali_addr_mapping_info; + pagedir = mali_session_get_page_directory(session); + + MALI_DEBUG_ASSERT_POINTER(session); + + mem = (struct mali_dma_buf_attachment *)ctx; + + MALI_DEBUG_ASSERT_POINTER(mem); + + mem->sgt = dma_buf_map_attachment(mem->attachment, DMA_BIDIRECTIONAL); + if (IS_ERR_OR_NULL(mem->sgt)) + { + MALI_PRINT_ERROR(("Failed to map dma-buf attachment\n")); + return MALI_MEM_ALLOC_INTERNAL_FAILURE; + } + + for_each_sg(mem->sgt->sgl, sg, mem->sgt->nents, i) + { + u32 size = sg_dma_len(sg); + dma_addr_t phys = sg_dma_address(sg); + + /* sg must be page aligned. */ + MALI_DEBUG_ASSERT(0 == size % MALI_MMU_PAGE_SIZE); + + mali_mmu_pagedir_update(pagedir, virt, phys, size, MALI_CACHE_STANDARD); + + virt += size; + *offset += size; + } + + if (descriptor->flags & MALI_MEMORY_ALLOCATION_FLAG_MAP_GUARD_PAGE) + { + u32 guard_phys; + MALI_DEBUG_PRINT(7, ("Mapping in extra guard page\n")); + + guard_phys = sg_dma_address(mem->sgt->sgl); + mali_mmu_pagedir_update(mali_session_get_page_directory(session), virt, guard_phys, MALI_MMU_PAGE_SIZE, MALI_CACHE_STANDARD); + } + + MALI_DEBUG_ASSERT(*offset == descriptor->size); + + alloc_info->ctx = NULL; + alloc_info->handle = mem; + alloc_info->next = NULL; + alloc_info->release = mali_dma_buf_release; + + return MALI_MEM_ALLOC_FINISHED; +} + +int mali_attach_dma_buf(struct mali_session_data *session, _mali_uk_attach_dma_buf_s __user *user_arg) +{ + mali_physical_memory_allocator external_memory_allocator; + struct dma_buf *buf; + struct mali_dma_buf_attachment *mem; + _mali_uk_attach_dma_buf_s args; + mali_memory_allocation *descriptor; + int md; + int fd; + + /* Get call arguments from user space. copy_from_user returns how many bytes which where NOT copied */ + if (0 != copy_from_user(&args, (void __user *)user_arg, sizeof(_mali_uk_attach_dma_buf_s))) + { + return -EFAULT; + } + + + fd = args.mem_fd; + + buf = dma_buf_get(fd); + if (IS_ERR_OR_NULL(buf)) + { + MALI_DEBUG_PRINT(2, ("Failed to get dma-buf from fd: %d\n", fd)); + return PTR_RET(buf); + } + + /* Currently, mapping of the full buffer are supported. */ + if (args.size != buf->size) + { + MALI_DEBUG_PRINT(2, ("dma-buf size doesn't match mapping size.\n")); + dma_buf_put(buf); + return -EINVAL; + } + + + mem = mali_dma_buf_lookup(&mali_dma_bufs, buf); + if (NULL == mem) + { + /* dma-buf is not already attached to Mali */ + mem = _mali_osk_calloc(1, sizeof(struct mali_dma_buf_attachment)); + if (NULL == mem) + { + MALI_PRINT_ERROR(("Failed to allocate dma-buf tracing struct\n")); + dma_buf_put(mem->buf); + return -ENOMEM; + } + _mali_osk_atomic_init(&mem->ref, 1); + mem->buf = buf; + + mem->attachment = dma_buf_attach(mem->buf, mali_device); + if (NULL == mem->attachment) + { + MALI_DEBUG_PRINT(2, ("Failed to attach to dma-buf %d\n", fd)); + dma_buf_put(mem->buf); + _mali_osk_free(mem); + return -EFAULT; + } + + mali_dma_buf_add(&mali_dma_bufs, mem); + } + else + { + /* dma-buf is already attached to Mali */ + /* Give back the reference we just took, mali_dma_buf_lookup grabbed a new reference for us. */ + dma_buf_put(buf); + } + + /* Map dma-buf into this session's page tables */ + + /* Set up Mali memory descriptor */ + descriptor = _mali_osk_calloc(1, sizeof(mali_memory_allocation)); + if (NULL == descriptor) + { + MALI_PRINT_ERROR(("Failed to allocate descriptor dma-buf %d\n", fd)); + mali_dma_buf_release(NULL, mem); + return -ENOMEM; + } + + descriptor->size = args.size; + descriptor->mapping = NULL; + descriptor->mali_address = args.mali_address; + descriptor->mali_addr_mapping_info = (void*)session; + descriptor->process_addr_mapping_info = NULL; /* do not map to process address space */ + descriptor->lock = session->memory_lock; + + if (args.flags & _MALI_MAP_EXTERNAL_MAP_GUARD_PAGE) + { + descriptor->flags = MALI_MEMORY_ALLOCATION_FLAG_MAP_GUARD_PAGE; + } + _mali_osk_list_init( &descriptor->list ); + + /* Get descriptor mapping for memory. */ + if (_MALI_OSK_ERR_OK != mali_descriptor_mapping_allocate_mapping(session->descriptor_mapping, descriptor, &md)) + { + MALI_PRINT_ERROR(("Failed to create descriptor mapping for dma-buf %d\n", fd)); + _mali_osk_free(descriptor); + mali_dma_buf_release(NULL, mem); + return -EFAULT; + } + + external_memory_allocator.allocate = mali_dma_buf_commit; + external_memory_allocator.allocate_page_table_block = NULL; + external_memory_allocator.ctx = mem; + external_memory_allocator.name = "DMA-BUF Memory"; + external_memory_allocator.next = NULL; + + /* Map memory into session's Mali virtual address space. */ + _mali_osk_lock_wait(session->memory_lock, _MALI_OSK_LOCKMODE_RW); + if (_MALI_OSK_ERR_OK != mali_allocation_engine_allocate_memory(mali_mem_get_memory_engine(), descriptor, &external_memory_allocator, NULL)) + { + _mali_osk_lock_signal(session->memory_lock, _MALI_OSK_LOCKMODE_RW); + + MALI_PRINT_ERROR(("Failed to map dma-buf %d into Mali address space\n", fd)); + mali_descriptor_mapping_free(session->descriptor_mapping, md); + mali_dma_buf_release(NULL, mem); + return -ENOMEM; + } + _mali_osk_lock_signal(session->memory_lock, _MALI_OSK_LOCKMODE_RW); + + /* Return stuff to user space */ + if (0 != put_user(md, &user_arg->cookie)) + { + /* Roll back */ + MALI_PRINT_ERROR(("Failed to return descriptor to user space for dma-buf %d\n", fd)); + mali_descriptor_mapping_free(session->descriptor_mapping, md); + mali_dma_buf_release(NULL, mem); + return -EFAULT; + } + + return 0; +} + +int mali_release_dma_buf(struct mali_session_data *session, _mali_uk_release_dma_buf_s __user *user_arg) +{ + _mali_uk_release_dma_buf_s args; + mali_memory_allocation *descriptor; + + /* get call arguments from user space. copy_from_user returns how many bytes which where NOT copied */ + if ( 0 != copy_from_user(&args, (void __user *)user_arg, sizeof(_mali_uk_release_dma_buf_s)) ) + { + return -EFAULT; + } + + if (_MALI_OSK_ERR_OK != mali_descriptor_mapping_get(session->descriptor_mapping, args.cookie, (void**)&descriptor)) + { + MALI_DEBUG_PRINT(1, ("Invalid memory descriptor %d used to release dma-buf\n", args.cookie)); + return -EINVAL; + } + + descriptor = mali_descriptor_mapping_free(session->descriptor_mapping, args.cookie); + + if (NULL != descriptor) + { + _mali_osk_lock_wait( session->memory_lock, _MALI_OSK_LOCKMODE_RW ); + + /* Will call back to mali_dma_buf_release() which will release the dma-buf attachment. */ + mali_allocation_engine_release_memory(mali_mem_get_memory_engine(), descriptor); + + _mali_osk_lock_signal( session->memory_lock, _MALI_OSK_LOCKMODE_RW ); + + _mali_osk_free(descriptor); + } + + /* Return the error that _mali_ukk_map_external_ump_mem produced */ + return 0; +} + +int mali_dma_buf_get_size(struct mali_session_data *session, _mali_uk_dma_buf_get_size_s __user *user_arg) +{ + _mali_uk_dma_buf_get_size_s args; + int fd; + struct dma_buf *buf; + + /* get call arguments from user space. copy_from_user returns how many bytes which where NOT copied */ + if ( 0 != copy_from_user(&args, (void __user *)user_arg, sizeof(_mali_uk_dma_buf_get_size_s)) ) + { + return -EFAULT; + } + + /* Do DMA-BUF stuff */ + fd = args.mem_fd; + + buf = dma_buf_get(fd); + if (IS_ERR_OR_NULL(buf)) + { + MALI_DEBUG_PRINT(2, ("Failed to get dma-buf from fd: %d\n", fd)); + return PTR_RET(buf); + } + + if (0 != put_user(buf->size, &user_arg->size)) + { + dma_buf_put(buf); + return -EFAULT; + } + + dma_buf_put(buf); + + return 0; +} diff --git a/drivers/media/video/samsung/mali/linux/mali_dma_buf.h b/drivers/media/video/samsung/mali/linux/mali_dma_buf.h new file mode 100644 index 0000000..ee9a0ed --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_dma_buf.h @@ -0,0 +1,29 @@ +/* + * Copyright (C) 2011-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __MALI_DMA_BUF_H__ +#define __MALI_DMA_BUF_H__ + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include "mali_osk.h" + +int mali_attach_dma_buf(struct mali_session_data *session, _mali_uk_attach_dma_buf_s __user *arg); +int mali_release_dma_buf(struct mali_session_data *session, _mali_uk_release_dma_buf_s __user *arg); +int mali_dma_buf_get_size(struct mali_session_data *session, _mali_uk_dma_buf_get_size_s __user *arg); + +#ifdef __cplusplus +} +#endif + +#endif /* __MALI_KERNEL_LINUX_H__ */ diff --git a/drivers/media/video/samsung/mali/linux/mali_kernel_linux.c b/drivers/media/video/samsung/mali/linux/mali_kernel_linux.c new file mode 100644 index 0000000..233c0ca --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_kernel_linux.c @@ -0,0 +1,634 @@ +/** + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_kernel_linux.c + * Implementation of the Linux device driver entrypoints + */ +#include <linux/module.h> /* kernel module definitions */ +#include <linux/fs.h> /* file system operations */ +#include <linux/cdev.h> /* character device definitions */ +#include <linux/mm.h> /* memory manager definitions */ +#include <linux/mali/mali_utgard_ioctl.h> +#include "mali_kernel_common.h" +#include "mali_session.h" +#include "mali_kernel_core.h" +#include "mali_osk.h" +#include "mali_kernel_linux.h" +#include "mali_ukk.h" +#include "mali_ukk_wrappers.h" +#include "mali_kernel_pm.h" +#include "mali_kernel_sysfs.h" +#include "mali_platform.h" +#include "mali_kernel_license.h" +#include "mali_dma_buf.h" + +/* Streamline support for the Mali driver */ +#if defined(CONFIG_TRACEPOINTS) && MALI_TIMELINE_PROFILING_ENABLED +/* Ask Linux to create the tracepoints */ +#define CREATE_TRACE_POINTS +#include "mali_linux_trace.h" +#endif /* CONFIG_TRACEPOINTS */ + +static _mali_osk_errcode_t initialize_kernel_device(void); +static int initialize_sysfs(void); +static void terminate_kernel_device(void); + + +/* from the __malidrv_build_info.c file that is generated during build */ +extern const char *__malidrv_build_info(void); + +/* Module parameter to control log level */ +int mali_debug_level = 2; +module_param(mali_debug_level, int, S_IRUSR | S_IWUSR | S_IWGRP | S_IRGRP | S_IROTH); /* rw-rw-r-- */ +MODULE_PARM_DESC(mali_debug_level, "Higher number, more dmesg output"); + +/* By default the module uses any available major, but it's possible to set it at load time to a specific number */ +#if MALI_MAJOR_PREDEFINE +int mali_major = 244; +#else +int mali_major = 0; +#endif +module_param(mali_major, int, S_IRUGO); /* r--r--r-- */ +MODULE_PARM_DESC(mali_major, "Device major number"); + +module_param(mali_hang_check_interval, int, S_IRUSR | S_IWUSR | S_IWGRP | S_IRGRP | S_IROTH); +MODULE_PARM_DESC(mali_hang_check_interval, "Interval at which to check for progress after the hw watchdog has been triggered"); + +module_param(mali_max_job_runtime, int, S_IRUSR | S_IWUSR | S_IWGRP | S_IRGRP | S_IROTH); +MODULE_PARM_DESC(mali_max_job_runtime, "Maximum allowed job runtime in msecs.\nJobs will be killed after this no matter what"); + +extern int mali_l2_max_reads; +module_param(mali_l2_max_reads, int, S_IRUSR | S_IRGRP | S_IROTH); +MODULE_PARM_DESC(mali_l2_max_reads, "Maximum reads for Mali L2 cache"); + +#if MALI_TIMELINE_PROFILING_ENABLED +extern int mali_boot_profiling; +module_param(mali_boot_profiling, int, S_IRUSR | S_IRGRP | S_IROTH); +MODULE_PARM_DESC(mali_boot_profiling, "Start profiling as a part of Mali driver initialization"); +#endif + +/* Export symbols from common code: mali_user_settings.c */ +#include "mali_user_settings_db.h" +EXPORT_SYMBOL(mali_set_user_setting); +EXPORT_SYMBOL(mali_get_user_setting); +#if MALI_DVFS_ENABLED +extern int mali_dvfs_control; +module_param(mali_dvfs_control, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP| S_IROTH); /* rw-rw-r-- */ +MODULE_PARM_DESC(mali_dvfs_control, "Mali Current DVFS"); +#if defined(CONFIG_CPU_EXYNOS4210) +#else +extern int step0_clk; +module_param(step0_clk, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP| S_IROTH); /* rw-rw-r-- */ +MODULE_PARM_DESC(step0_clk, "Mali Current step0_clk"); +#ifdef DEBUG +extern int step0_vol; +module_param(step0_vol, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP| S_IROTH); /* rw-rw-r-- */ +MODULE_PARM_DESC(step0_vol, "Mali Current step0_vol"); +#endif + +#if (MALI_DVFS_STEPS > 1) +extern int step1_clk; +module_param(step1_clk, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP| S_IROTH); /* rw-rw-r-- */ +MODULE_PARM_DESC(step1_clk, "Mali Current step1_clk"); + +extern int step0_up; +module_param(step0_up, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP| S_IROTH); /* rw-rw-r-- */ +MODULE_PARM_DESC(step0_up, "Mali Current step0_up"); + +extern int step1_down; +module_param(step1_down, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP| S_IROTH); /* rw-rw-r-- */ +MODULE_PARM_DESC(step1_down, "Mali Current step1_down"); +#ifdef DEBUG +extern int step1_vol; +module_param(step1_vol, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP| S_IROTH); /* rw-rw-r-- */ +MODULE_PARM_DESC(step1_vol, "Mali Current step1_vol"); +#endif + +#if (MALI_DVFS_STEPS > 2) +extern int step2_clk; +module_param(step2_clk, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP| S_IROTH); /* rw-rw-r-- */ +MODULE_PARM_DESC(step2_clk, "Mali Current step2_clk"); + +extern int step1_up; +module_param(step1_up, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP| S_IROTH); /* rw-rw-r-- */ +MODULE_PARM_DESC(step1_up, "Mali Current step1_up"); + +extern int step2_down; +module_param(step2_down, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP| S_IROTH); /* rw-rw-r-- */ +MODULE_PARM_DESC(step2_down, "Mali Current step2_down"); +#ifdef DEBUG +extern int step2_vol; +module_param(step2_vol, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP| S_IROTH); /* rw-rw-r-- */ +MODULE_PARM_DESC(step2_vol, "Mali Current step2_vol"); +#endif + +#if (MALI_DVFS_STEPS > 3) +extern int step3_clk; +module_param(step3_clk, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP| S_IROTH); /* rw-rw-r-- */ +MODULE_PARM_DESC(step3_clk, "Mali Current step3_clk"); + +extern int step2_up; +module_param(step2_up, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP| S_IROTH); /* rw-rw-r-- */ +MODULE_PARM_DESC(step2_up, "Mali Current step2_up"); + +extern int step3_down; +module_param(step3_down, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP| S_IROTH); /* rw-rw-r-- */ +MODULE_PARM_DESC(step3_down, "Mali Current step3_down"); +#ifdef DEBUG +extern int step3_vol; +module_param(step3_vol, int, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP| S_IROTH); /* rw-rw-r-- */ +MODULE_PARM_DESC(step3_vol, "Mali Current step3_vol"); +#endif +#endif +#endif +#endif +#endif + +extern int mali_gpu_clk; +module_param(mali_gpu_clk, int, S_IRUSR | S_IRGRP | S_IROTH); /* r--r--r-- */ +MODULE_PARM_DESC(mali_gpu_clk, "Mali Current Clock"); + +extern int mali_gpu_vol; +module_param(mali_gpu_vol, int, S_IRUSR | S_IRGRP | S_IROTH); /* r--r--r-- */ +MODULE_PARM_DESC(mali_gpu_vol, "Mali Current Voltage"); + +extern int gpu_power_state; +module_param(gpu_power_state, int, S_IRUSR | S_IRGRP | S_IROTH); /* r--r--r-- */ +MODULE_PARM_DESC(gpu_power_state, "Mali Power State"); +#endif + + +static char mali_dev_name[] = "mali"; /* should be const, but the functions we call requires non-cost */ + +/* the mali device */ +static struct mali_dev device; + + +static int mali_open(struct inode *inode, struct file *filp); +static int mali_release(struct inode *inode, struct file *filp); +#ifdef HAVE_UNLOCKED_IOCTL +static long mali_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); +#else +static int mali_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); +#endif + +static int mali_mmap(struct file * filp, struct vm_area_struct * vma); + +/* Linux char file operations provided by the Mali module */ +struct file_operations mali_fops = +{ + .owner = THIS_MODULE, + .open = mali_open, + .release = mali_release, +#ifdef HAVE_UNLOCKED_IOCTL + .unlocked_ioctl = mali_ioctl, +#else + .ioctl = mali_ioctl, +#endif + .mmap = mali_mmap +}; + + +int mali_driver_init(void) +{ + int ret = 0; + + MALI_DEBUG_PRINT(2, ("\n")); + MALI_DEBUG_PRINT(2, ("Inserting Mali v%d device driver. \n",_MALI_API_VERSION)); + MALI_DEBUG_PRINT(2, ("Compiled: %s, time: %s.\n", __DATE__, __TIME__)); + MALI_DEBUG_PRINT(2, ("Driver revision: %s\n", SVN_REV_STRING)); + + ret = _mali_dev_platform_register(); + if (0 != ret) goto platform_register_failed; + ret = map_errcode(initialize_kernel_device()); + if (0 != ret) goto initialize_kernel_device_failed; + + ret = map_errcode(mali_platform_init()); + if (0 != ret) goto platform_init_failed; + + mali_osk_low_level_mem_init(); + + ret = map_errcode(mali_initialize_subsystems()); + if (0 != ret) goto initialize_subsystems_failed; + + ret = initialize_sysfs(); + if (0 != ret) goto initialize_sysfs_failed; + + MALI_PRINT(("Mali device driver loaded\n")); + + return 0; /* Success */ + + /* Error handling */ +initialize_sysfs_failed: + mali_terminate_subsystems(); +initialize_subsystems_failed: + mali_osk_low_level_mem_term(); + mali_platform_deinit(); +platform_init_failed: + terminate_kernel_device(); +initialize_kernel_device_failed: + _mali_dev_platform_unregister(); +platform_register_failed: + return ret; +} + +void mali_driver_exit(void) +{ + MALI_DEBUG_PRINT(2, ("\n")); + MALI_DEBUG_PRINT(2, ("Unloading Mali v%d device driver.\n",_MALI_API_VERSION)); + + /* No need to terminate sysfs, this will be done automatically along with device termination */ + + mali_terminate_subsystems(); + + mali_osk_low_level_mem_term(); + + mali_platform_deinit(); + + terminate_kernel_device(); + _mali_dev_platform_unregister(); + +#if MALI_LICENSE_IS_GPL + /* @@@@ clean up the work queues! This should not be terminated here, since it isn't inited in the function above! */ + flush_workqueue(mali_wq); + destroy_workqueue(mali_wq); + mali_wq = NULL; +#endif + + MALI_PRINT(("Mali device driver unloaded\n")); +} + +static int initialize_kernel_device(void) +{ + int err; + dev_t dev = 0; + if (0 == mali_major) + { + /* auto select a major */ + err = alloc_chrdev_region(&dev, 0/*first minor*/, 1/*count*/, mali_dev_name); + mali_major = MAJOR(dev); + } + else + { + /* use load time defined major number */ + dev = MKDEV(mali_major, 0); + err = register_chrdev_region(dev, 1/*count*/, mali_dev_name); + } + + if (err) + { + goto init_chrdev_err; + } + + memset(&device, 0, sizeof(device)); + + /* initialize our char dev data */ + cdev_init(&device.cdev, &mali_fops); + device.cdev.owner = THIS_MODULE; + device.cdev.ops = &mali_fops; + + /* register char dev with the kernel */ + err = cdev_add(&device.cdev, dev, 1/*count*/); + if (err) + { + goto init_cdev_err; + } + + /* Success! */ + return 0; + +init_cdev_err: + unregister_chrdev_region(dev, 1/*count*/); +init_chrdev_err: + return err; +} + +static int initialize_sysfs(void) +{ + dev_t dev = MKDEV(mali_major, 0); + return mali_sysfs_register(&device, dev, mali_dev_name); +} + +static void terminate_kernel_device(void) +{ + dev_t dev = MKDEV(mali_major, 0); + + mali_sysfs_unregister(&device, dev, mali_dev_name); + + /* unregister char device */ + cdev_del(&device.cdev); + /* free major */ + unregister_chrdev_region(dev, 1/*count*/); + return; +} + +/** @note munmap handler is done by vma close handler */ +static int mali_mmap(struct file * filp, struct vm_area_struct * vma) +{ + struct mali_session_data * session_data; + _mali_uk_mem_mmap_s args = {0, }; + + session_data = (struct mali_session_data *)filp->private_data; + if (NULL == session_data) + { + MALI_PRINT_ERROR(("mmap called without any session data available\n")); + return -EFAULT; + } + + MALI_DEBUG_PRINT(4, ("MMap() handler: start=0x%08X, phys=0x%08X, size=0x%08X vma->flags 0x%08x\n", (unsigned int)vma->vm_start, (unsigned int)(vma->vm_pgoff << PAGE_SHIFT), (unsigned int)(vma->vm_end - vma->vm_start), vma->vm_flags)); + + /* Re-pack the arguments that mmap() packed for us */ + args.ctx = session_data; + args.phys_addr = vma->vm_pgoff << PAGE_SHIFT; + args.size = vma->vm_end - vma->vm_start; + args.ukk_private = vma; + + if ( VM_SHARED== (VM_SHARED & vma->vm_flags)) + { + args.cache_settings = MALI_CACHE_STANDARD ; + MALI_DEBUG_PRINT(3,("Allocate - Standard - Size: %d kb\n", args.size/1024)); + } + else + { + args.cache_settings = MALI_CACHE_GP_READ_ALLOCATE; + MALI_DEBUG_PRINT(3,("Allocate - GP Cached - Size: %d kb\n", args.size/1024)); + } + /* Setting it equal to VM_SHARED and not Private, which would have made the later io_remap fail for MALI_CACHE_GP_READ_ALLOCATE */ + vma->vm_flags = 0x000000fb; + + /* Call the common mmap handler */ + MALI_CHECK(_MALI_OSK_ERR_OK ==_mali_ukk_mem_mmap( &args ), -EFAULT); + + return 0; +} + +static int mali_open(struct inode *inode, struct file *filp) +{ + struct mali_session_data * session_data; + _mali_osk_errcode_t err; + + /* input validation */ + if (0 != MINOR(inode->i_rdev)) return -ENODEV; + + /* allocated struct to track this session */ + err = _mali_ukk_open((void **)&session_data); + if (_MALI_OSK_ERR_OK != err) return map_errcode(err); + + /* initialize file pointer */ + filp->f_pos = 0; + + /* link in our session data */ + filp->private_data = (void*)session_data; + + return 0; +} + +static int mali_release(struct inode *inode, struct file *filp) +{ + _mali_osk_errcode_t err; + + /* input validation */ + if (0 != MINOR(inode->i_rdev)) return -ENODEV; + + err = _mali_ukk_close((void **)&filp->private_data); + if (_MALI_OSK_ERR_OK != err) return map_errcode(err); + + return 0; +} + +int map_errcode( _mali_osk_errcode_t err ) +{ + switch(err) + { + case _MALI_OSK_ERR_OK : return 0; + case _MALI_OSK_ERR_FAULT: return -EFAULT; + case _MALI_OSK_ERR_INVALID_FUNC: return -ENOTTY; + case _MALI_OSK_ERR_INVALID_ARGS: return -EINVAL; + case _MALI_OSK_ERR_NOMEM: return -ENOMEM; + case _MALI_OSK_ERR_TIMEOUT: return -ETIMEDOUT; + case _MALI_OSK_ERR_RESTARTSYSCALL: return -ERESTARTSYS; + case _MALI_OSK_ERR_ITEM_NOT_FOUND: return -ENOENT; + default: return -EFAULT; + } +} + +#ifdef HAVE_UNLOCKED_IOCTL +static long mali_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) +#else +static int mali_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) +#endif +{ + int err; + struct mali_session_data *session_data; + +#ifndef HAVE_UNLOCKED_IOCTL + /* inode not used */ + (void)inode; +#endif + + MALI_DEBUG_PRINT(7, ("Ioctl received 0x%08X 0x%08lX\n", cmd, arg)); + + session_data = (struct mali_session_data *)filp->private_data; + if (NULL == session_data) + { + MALI_DEBUG_PRINT(7, ("filp->private_data was NULL\n")); + return -ENOTTY; + } + + if (NULL == (void *)arg) + { + MALI_DEBUG_PRINT(7, ("arg was NULL\n")); + return -ENOTTY; + } + + switch(cmd) + { + case MALI_IOC_WAIT_FOR_NOTIFICATION: + err = wait_for_notification_wrapper(session_data, (_mali_uk_wait_for_notification_s __user *)arg); + break; + + case MALI_IOC_GET_API_VERSION: + err = get_api_version_wrapper(session_data, (_mali_uk_get_api_version_s __user *)arg); + break; + + case MALI_IOC_POST_NOTIFICATION: + err = post_notification_wrapper(session_data, (_mali_uk_post_notification_s __user *)arg); + break; + + case MALI_IOC_GET_USER_SETTINGS: + err = get_user_settings_wrapper(session_data, (_mali_uk_get_user_settings_s __user *)arg); + break; + +#if MALI_TIMELINE_PROFILING_ENABLED + case MALI_IOC_PROFILING_START: + err = profiling_start_wrapper(session_data, (_mali_uk_profiling_start_s __user *)arg); + break; + + case MALI_IOC_PROFILING_ADD_EVENT: + err = profiling_add_event_wrapper(session_data, (_mali_uk_profiling_add_event_s __user *)arg); + break; + + case MALI_IOC_PROFILING_STOP: + err = profiling_stop_wrapper(session_data, (_mali_uk_profiling_stop_s __user *)arg); + break; + + case MALI_IOC_PROFILING_GET_EVENT: + err = profiling_get_event_wrapper(session_data, (_mali_uk_profiling_get_event_s __user *)arg); + break; + + case MALI_IOC_PROFILING_CLEAR: + err = profiling_clear_wrapper(session_data, (_mali_uk_profiling_clear_s __user *)arg); + break; + + case MALI_IOC_PROFILING_GET_CONFIG: + /* Deprecated: still compatible with get_user_settings */ + err = get_user_settings_wrapper(session_data, (_mali_uk_get_user_settings_s __user *)arg); + break; + + case MALI_IOC_PROFILING_REPORT_SW_COUNTERS: + err = profiling_report_sw_counters_wrapper(session_data, (_mali_uk_sw_counters_report_s __user *)arg); + break; + +#else + + case MALI_IOC_PROFILING_START: /* FALL-THROUGH */ + case MALI_IOC_PROFILING_ADD_EVENT: /* FALL-THROUGH */ + case MALI_IOC_PROFILING_STOP: /* FALL-THROUGH */ + case MALI_IOC_PROFILING_GET_EVENT: /* FALL-THROUGH */ + case MALI_IOC_PROFILING_CLEAR: /* FALL-THROUGH */ + case MALI_IOC_PROFILING_GET_CONFIG: /* FALL-THROUGH */ + case MALI_IOC_PROFILING_REPORT_SW_COUNTERS: /* FALL-THROUGH */ + MALI_DEBUG_PRINT(2, ("Profiling not supported\n")); + err = -ENOTTY; + break; + +#endif + + case MALI_IOC_MEM_INIT: + err = mem_init_wrapper(session_data, (_mali_uk_init_mem_s __user *)arg); + break; + + case MALI_IOC_MEM_TERM: + err = mem_term_wrapper(session_data, (_mali_uk_term_mem_s __user *)arg); + break; + + case MALI_IOC_MEM_MAP_EXT: + err = mem_map_ext_wrapper(session_data, (_mali_uk_map_external_mem_s __user *)arg); + break; + + case MALI_IOC_MEM_UNMAP_EXT: + err = mem_unmap_ext_wrapper(session_data, (_mali_uk_unmap_external_mem_s __user *)arg); + break; + + case MALI_IOC_MEM_QUERY_MMU_PAGE_TABLE_DUMP_SIZE: + err = mem_query_mmu_page_table_dump_size_wrapper(session_data, (_mali_uk_query_mmu_page_table_dump_size_s __user *)arg); + break; + + case MALI_IOC_MEM_DUMP_MMU_PAGE_TABLE: + err = mem_dump_mmu_page_table_wrapper(session_data, (_mali_uk_dump_mmu_page_table_s __user *)arg); + break; + +#if MALI_USE_UNIFIED_MEMORY_PROVIDER != 0 + + case MALI_IOC_MEM_ATTACH_UMP: + err = mem_attach_ump_wrapper(session_data, (_mali_uk_attach_ump_mem_s __user *)arg); + break; + + case MALI_IOC_MEM_RELEASE_UMP: + err = mem_release_ump_wrapper(session_data, (_mali_uk_release_ump_mem_s __user *)arg); + break; + +#else + + case MALI_IOC_MEM_ATTACH_UMP: + case MALI_IOC_MEM_RELEASE_UMP: /* FALL-THROUGH */ + MALI_DEBUG_PRINT(2, ("UMP not supported\n")); + err = -ENOTTY; + break; +#endif + +#ifdef CONFIG_DMA_SHARED_BUFFER + case MALI_IOC_MEM_ATTACH_DMA_BUF: + err = mali_attach_dma_buf(session_data, (_mali_uk_attach_dma_buf_s __user *)arg); + break; + + case MALI_IOC_MEM_RELEASE_DMA_BUF: + err = mali_release_dma_buf(session_data, (_mali_uk_release_dma_buf_s __user *)arg); + break; + + case MALI_IOC_MEM_DMA_BUF_GET_SIZE: + err = mali_dma_buf_get_size(session_data, (_mali_uk_dma_buf_get_size_s __user *)arg); + break; +#else + + case MALI_IOC_MEM_DMA_BUF_GET_SIZE: /* FALL-THROUGH */ + MALI_DEBUG_PRINT(2, ("DMA-BUF not supported\n")); + err = -ENOTTY; + break; +#endif + + case MALI_IOC_PP_START_JOB: + err = pp_start_job_wrapper(session_data, (_mali_uk_pp_start_job_s __user *)arg); + break; + + case MALI_IOC_PP_NUMBER_OF_CORES_GET: + err = pp_get_number_of_cores_wrapper(session_data, (_mali_uk_get_pp_number_of_cores_s __user *)arg); + break; + + case MALI_IOC_PP_CORE_VERSION_GET: + err = pp_get_core_version_wrapper(session_data, (_mali_uk_get_pp_core_version_s __user *)arg); + break; + + case MALI_IOC_PP_DISABLE_WB: + err = pp_disable_wb_wrapper(session_data, (_mali_uk_pp_disable_wb_s __user *)arg); + break; + + case MALI_IOC_GP2_START_JOB: + err = gp_start_job_wrapper(session_data, (_mali_uk_gp_start_job_s __user *)arg); + break; + + case MALI_IOC_GP2_NUMBER_OF_CORES_GET: + err = gp_get_number_of_cores_wrapper(session_data, (_mali_uk_get_gp_number_of_cores_s __user *)arg); + break; + + case MALI_IOC_GP2_CORE_VERSION_GET: + err = gp_get_core_version_wrapper(session_data, (_mali_uk_get_gp_core_version_s __user *)arg); + break; + + case MALI_IOC_GP2_SUSPEND_RESPONSE: + err = gp_suspend_response_wrapper(session_data, (_mali_uk_gp_suspend_response_s __user *)arg); + break; + + case MALI_IOC_VSYNC_EVENT_REPORT: + err = vsync_event_report_wrapper(session_data, (_mali_uk_vsync_event_report_s __user *)arg); + break; + + case MALI_IOC_MEM_GET_BIG_BLOCK: /* Fallthrough */ + case MALI_IOC_MEM_FREE_BIG_BLOCK: + MALI_PRINT_ERROR(("Non-MMU mode is no longer supported.\n")); + err = -ENOTTY; + break; + + default: + MALI_DEBUG_PRINT(2, ("No handler for ioctl 0x%08X 0x%08lX\n", cmd, arg)); + err = -ENOTTY; + }; + + return err; +} + + +module_init(mali_driver_init); +module_exit(mali_driver_exit); + +MODULE_LICENSE(MALI_KERNEL_LINUX_LICENSE); +MODULE_AUTHOR("ARM Ltd."); +MODULE_VERSION(SVN_REV_STRING); diff --git a/drivers/media/video/samsung/mali/linux/mali_kernel_linux.h b/drivers/media/video/samsung/mali/linux/mali_kernel_linux.h new file mode 100644 index 0000000..22dc9a4 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_kernel_linux.h @@ -0,0 +1,43 @@ +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __MALI_KERNEL_LINUX_H__ +#define __MALI_KERNEL_LINUX_H__ + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <linux/cdev.h> /* character device definitions */ +#include "mali_kernel_license.h" +#include "mali_osk.h" + +struct mali_dev +{ + struct cdev cdev; +#if MALI_LICENSE_IS_GPL + struct class * mali_class; +#endif +}; + +#if MALI_LICENSE_IS_GPL +/* Defined in mali_osk_irq.h */ +extern struct workqueue_struct * mali_wq; +#endif + +void mali_osk_low_level_mem_init(void); +void mali_osk_low_level_mem_term(void); + +#ifdef __cplusplus +} +#endif + +#endif /* __MALI_KERNEL_LINUX_H__ */ diff --git a/drivers/media/video/samsung/mali/linux/mali_kernel_pm.c b/drivers/media/video/samsung/mali/linux/mali_kernel_pm.c new file mode 100644 index 0000000..4639d55 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_kernel_pm.c @@ -0,0 +1,268 @@ +/** + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_kernel_pm.c + * Linux Power Management integration + */ + +#include <linux/sched.h> +#include <linux/platform_device.h> +#include <linux/version.h> +#include <asm/current.h> +#include <linux/suspend.h> +#include <linux/module.h> +#ifdef CONFIG_PM_RUNTIME +#include <linux/pm_runtime.h> +#endif +#include "mali_osk.h" +#include "mali_uk_types.h" +#include "mali_kernel_common.h" +#include "mali_kernel_license.h" +#include "mali_linux_pm.h" +#include "mali_pm.h" +#include "mali_platform.h" + +#if ! MALI_LICENSE_IS_GPL +#undef CONFIG_PM_RUNTIME +#endif + +#if MALI_PMM_RUNTIME_JOB_CONTROL_ON +extern void set_mali_parent_power_domain(struct platform_device* dev); +#endif /* MALI_PMM_RUNTIME_JOB_CONTROL_ON */ +static int mali_probe(struct platform_device *pdev); +static int mali_remove(struct platform_device *pdev); + +#ifdef CONFIG_PM_RUNTIME +static int mali_runtime_suspend(struct device *dev); +static int mali_runtime_resume(struct device *dev); +#endif + +#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29)) +static int mali_os_suspend(struct platform_device *pdev, pm_message_t state); +static int mali_os_resume(struct platform_device *pdev); +#else +static int mali_os_suspend(struct device *dev); +static int mali_os_resume(struct device *dev); +#endif + + +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29)) +static const struct dev_pm_ops mali_dev_pm_ops = +{ +#ifdef CONFIG_PM_RUNTIME + .runtime_suspend = mali_runtime_suspend, + .runtime_resume = mali_runtime_resume, + .runtime_idle = NULL, +#else + .suspend = mali_os_suspend, + .resume = mali_os_resume, +#endif + .freeze = mali_os_suspend, + .poweroff = mali_os_suspend, + .thaw = mali_os_resume, + .restore = mali_os_resume, +}; +#elif (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29)) +struct pm_ext_ops mali_ext_pm_operations = +{ + .base = + { + .freeze = mali_os_suspend, + .thaw = mali_os_resume, + .poweroff = mali_os_suspend, + .restore = mali_os_resume, + }, +}; +#endif + + +static struct platform_driver mali_plat_driver = +{ + .probe = mali_probe, + .remove = mali_remove, +#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29)) + .suspend = mali_os_suspend, + .resume = mali_os_resume, + .pm = &mali_ext_pm_operations, +#endif + + .driver = + { + .name = "mali_dev", + .owner = THIS_MODULE, +#if MALI_LICENSE_IS_GPL + .bus = &platform_bus_type, +#endif +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29)) + .pm = &mali_dev_pm_ops, +#endif + }, +}; + +#ifdef CONFIG_PM_RUNTIME +static int mali_pwr_suspend_notifier(struct notifier_block *nb,unsigned long event,void* dummy); + +static struct notifier_block mali_pwr_notif_block = +{ + .notifier_call = mali_pwr_suspend_notifier +}; +#endif + +/** This function is called when platform device is unregistered. This function + * is necessary when the platform device is unregistered. + */ +static void _mali_release_pm(struct device *device) +{ +} +struct platform_device mali_gpu_device = +{ + .name = "mali_dev", + .id = 0, + .dev.release = _mali_release_pm +}; + +/** This function is called when the device is probed */ +static int mali_probe(struct platform_device *pdev) +{ + return 0; +} + +static int mali_remove(struct platform_device *pdev) +{ +#ifdef CONFIG_PM_RUNTIME + pm_runtime_disable(&pdev->dev); +#endif + return 0; +} + +#ifdef CONFIG_PM_RUNTIME +static int mali_pwr_suspend_notifier(struct notifier_block *nb,unsigned long event,void* dummy) +{ + switch (event) + { + case PM_SUSPEND_PREPARE: + MALI_DEBUG_PRINT(2, ("mali_pwr_suspend_notifier(PM_SUSPEND_PREPARE) called\n")); + mali_pm_os_suspend(); + break; + case PM_POST_SUSPEND: + MALI_DEBUG_PRINT(2, ("mali_pwr_suspend_notifier(PM_SUSPEND_PREPARE) called\n")); + mali_pm_os_resume(); + break; + default: + break; + } + return 0; +} +#endif + + +#ifdef CONFIG_PM_RUNTIME + +static int mali_runtime_suspend(struct device *dev) +{ + MALI_DEBUG_PRINT(3, ("mali_runtime_suspend() called\n")); + mali_pm_runtime_suspend(); + return 0; /* all ok */ +} + +static int mali_runtime_resume(struct device *dev) +{ + MALI_DEBUG_PRINT(3, ("mali_runtime_resume() called\n")); + mali_pm_runtime_resume(); + return 0; /* all ok */ +} + +#endif + +#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29)) + +static int mali_os_suspend(struct platform_device *pdev, pm_message_t state) +{ + MALI_DEBUG_PRINT(3, ("mali_os_suspend(old) called\n")); + mali_pm_os_suspend(); + return 0; /* all ok */ +} + +static int mali_os_resume(struct platform_device *pdev) +{ + MALI_DEBUG_PRINT(3, ("mali_os_resume(old) called\n")); + mali_pm_os_resume(); + return 0; /* all ok */ +} + +#else + +static int mali_os_suspend(struct device *dev) +{ + MALI_DEBUG_PRINT(3, ("mali_os_suspend(new) called\n")); + mali_pm_os_suspend(); + return 0; /* all ok */ +} + +static int mali_os_resume(struct device *dev) +{ + MALI_DEBUG_PRINT(3, ("mali_os_resume(new) called\n")); + mali_pm_os_resume(); + return 0; /* all ok */ +} + +#endif + +/** This function is called when Mali GPU device is initialized + */ +int _mali_dev_platform_register(void) +{ + int err; + +#ifdef CONFIG_PM_RUNTIME + set_mali_parent_power_domain((void *)&mali_gpu_device); +#endif + +#ifdef CONFIG_PM_RUNTIME + err = register_pm_notifier(&mali_pwr_notif_block); + if (err) + { + return err; + } +#endif + +#if MALI_LICENSE_IS_GPL + err = platform_device_register(&mali_gpu_device); + if (!err) + { + err = platform_driver_register(&mali_plat_driver); + if (err) + { +#ifdef CONFIG_PM_RUNTIME + unregister_pm_notifier(&mali_pwr_notif_block); +#endif + platform_device_unregister(&mali_gpu_device); + } + } +#endif + + return err; +} + +/** This function is called when Mali GPU device is unloaded + */ +void _mali_dev_platform_unregister(void) +{ +#ifdef CONFIG_PM_RUNTIME + unregister_pm_notifier(&mali_pwr_notif_block); +#endif + +#if MALI_LICENSE_IS_GPL + platform_driver_unregister(&mali_plat_driver); + platform_device_unregister(&mali_gpu_device); +#endif +} + diff --git a/drivers/media/video/samsung/mali/linux/mali_kernel_pm.h b/drivers/media/video/samsung/mali/linux/mali_kernel_pm.h new file mode 100644 index 0000000..6ef7270 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_kernel_pm.h @@ -0,0 +1,17 @@ +/* + * Copyright (C) 2010, 2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __MALI_KERNEL_PM_H__ +#define __MALI_KERNEL_PM_H__ + +int _mali_dev_platform_register(void); +void _mali_dev_platform_unregister(void); + +#endif /* __MALI_KERNEL_PM_H__ */ diff --git a/drivers/media/video/samsung/mali/linux/mali_kernel_sysfs.c b/drivers/media/video/samsung/mali/linux/mali_kernel_sysfs.c new file mode 100644 index 0000000..e2dc17b --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_kernel_sysfs.c @@ -0,0 +1,1280 @@ +/** + * Copyright (C) 2011-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + + +/** + * @file mali_kernel_sysfs.c + * Implementation of some sysfs data exports + */ + +#include <linux/kernel.h> +#include <linux/fs.h> +#include <linux/device.h> +#include <linux/module.h> +#include "mali_kernel_license.h" +#include "mali_kernel_common.h" +#include "mali_kernel_linux.h" +#include "mali_ukk.h" + +#if MALI_LICENSE_IS_GPL + +#include <linux/seq_file.h> +#include <linux/debugfs.h> +#include <asm/uaccess.h> +#include <linux/module.h> +#include "mali_kernel_sysfs.h" +#if MALI_INTERNAL_TIMELINE_PROFILING_ENABLED +#include <linux/slab.h> +#include "mali_osk_profiling.h" +#endif +#include "mali_pm.h" +#include "mali_cluster.h" +#include "mali_group.h" +#include "mali_gp.h" +#include "mali_pp.h" +#include "mali_l2_cache.h" +#include "mali_hw_core.h" +#include "mali_kernel_core.h" +#include "mali_user_settings_db.h" +#include "mali_device_pause_resume.h" + +#define POWER_BUFFER_SIZE 3 + +struct device *mali_device; +static struct dentry *mali_debugfs_dir = NULL; + +typedef enum +{ + _MALI_DEVICE_SUSPEND, + _MALI_DEVICE_RESUME, + _MALI_DEVICE_DVFS_PAUSE, + _MALI_DEVICE_DVFS_RESUME, + _MALI_MAX_EVENTS +} _mali_device_debug_power_events; + +static const char* const mali_power_events[_MALI_MAX_EVENTS] = { + [_MALI_DEVICE_SUSPEND] = "suspend", + [_MALI_DEVICE_RESUME] = "resume", + [_MALI_DEVICE_DVFS_PAUSE] = "dvfs_pause", + [_MALI_DEVICE_DVFS_RESUME] = "dvfs_resume", +}; + +static u32 virtual_power_status_register=0; +static char pwr_buf[POWER_BUFFER_SIZE]; + +static int open_copy_private_data(struct inode *inode, struct file *filp) +{ + filp->private_data = inode->i_private; + return 0; +} + +static ssize_t gp_gpx_counter_srcx_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *gpos, u32 src_id) +{ + char buf[64]; + int r; + u32 val; + struct mali_gp_core *gp_core = (struct mali_gp_core *)filp->private_data; + + if (0 == src_id) + { + val = mali_gp_core_get_counter_src0(gp_core); + } + else + { + val = mali_gp_core_get_counter_src1(gp_core); + } + + if (MALI_HW_CORE_NO_COUNTER == val) + { + r = sprintf(buf, "-1\n"); + } + else + { + r = sprintf(buf, "%u\n", val); + } + return simple_read_from_buffer(ubuf, cnt, gpos, buf, r); +} + +static ssize_t gp_gpx_counter_srcx_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *gpos, u32 src_id) +{ + struct mali_gp_core *gp_core = (struct mali_gp_core *)filp->private_data; + char buf[64]; + long val; + int ret; + + if (cnt >= sizeof(buf)) + { + return -EINVAL; + } + + if (copy_from_user(&buf, ubuf, cnt)) + { + return -EFAULT; + } + + buf[cnt] = 0; + + ret = strict_strtol(buf, 10, &val); + if (ret < 0) + { + return ret; + } + + if (val < 0) + { + /* any negative input will disable counter */ + val = MALI_HW_CORE_NO_COUNTER; + } + + if (0 == src_id) + { + if (MALI_TRUE != mali_gp_core_set_counter_src0(gp_core, (u32)val)) + { + return 0; + } + } + else + { + if (MALI_TRUE != mali_gp_core_set_counter_src1(gp_core, (u32)val)) + { + return 0; + } + } + + *gpos += cnt; + return cnt; +} + +static ssize_t gp_all_counter_srcx_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *gpos, u32 src_id) +{ + char buf[64]; + long val; + int ret; + u32 ci; + struct mali_cluster *cluster; + + if (cnt >= sizeof(buf)) + { + return -EINVAL; + } + + if (copy_from_user(&buf, ubuf, cnt)) + { + return -EFAULT; + } + + buf[cnt] = 0; + + ret = strict_strtol(buf, 10, &val); + if (ret < 0) + { + return ret; + } + + if (val < 0) + { + /* any negative input will disable counter */ + val = MALI_HW_CORE_NO_COUNTER; + } + + ci = 0; + cluster = mali_cluster_get_global_cluster(ci); + while (NULL != cluster) + { + u32 gi = 0; + struct mali_group *group = mali_cluster_get_group(cluster, gi); + while (NULL != group) + { + struct mali_gp_core *gp_core = mali_group_get_gp_core(group); + if (NULL != gp_core) + { + if (0 == src_id) + { + if (MALI_TRUE != mali_gp_core_set_counter_src0(gp_core, (u32)val)) + { + return 0; + } + } + else + { + if (MALI_TRUE != mali_gp_core_set_counter_src1(gp_core, (u32)val)) + { + return 0; + } + } + } + + /* try next group */ + gi++; + group = mali_cluster_get_group(cluster, gi); + } + + /* try next cluster */ + ci++; + cluster = mali_cluster_get_global_cluster(ci); + } + + *gpos += cnt; + return cnt; +} + +static ssize_t gp_gpx_counter_src0_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *gpos) +{ + return gp_gpx_counter_srcx_read(filp, ubuf, cnt, gpos, 0); +} + +static ssize_t gp_gpx_counter_src1_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *gpos) +{ + return gp_gpx_counter_srcx_read(filp, ubuf, cnt, gpos, 1); +} + +static ssize_t gp_gpx_counter_src0_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *gpos) +{ + return gp_gpx_counter_srcx_write(filp, ubuf, cnt, gpos, 0); +} + +static ssize_t gp_gpx_counter_src1_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *gpos) +{ + return gp_gpx_counter_srcx_write(filp, ubuf, cnt, gpos, 1); +} + +static ssize_t gp_all_counter_src0_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *gpos) +{ + return gp_all_counter_srcx_write(filp, ubuf, cnt, gpos, 0); +} + +static ssize_t gp_all_counter_src1_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *gpos) +{ + return gp_all_counter_srcx_write(filp, ubuf, cnt, gpos, 1); +} + +static const struct file_operations gp_gpx_counter_src0_fops = { + .owner = THIS_MODULE, + .open = open_copy_private_data, + .read = gp_gpx_counter_src0_read, + .write = gp_gpx_counter_src0_write, +}; + +static const struct file_operations gp_gpx_counter_src1_fops = { + .owner = THIS_MODULE, + .open = open_copy_private_data, + .read = gp_gpx_counter_src1_read, + .write = gp_gpx_counter_src1_write, +}; + +static const struct file_operations gp_all_counter_src0_fops = { + .owner = THIS_MODULE, + .write = gp_all_counter_src0_write, +}; + +static const struct file_operations gp_all_counter_src1_fops = { + .owner = THIS_MODULE, + .write = gp_all_counter_src1_write, +}; + +static ssize_t pp_ppx_counter_srcx_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos, u32 src_id) +{ + char buf[64]; + int r; + u32 val; + struct mali_pp_core *pp_core = (struct mali_pp_core *)filp->private_data; + + if (0 == src_id) + { + val = mali_pp_core_get_counter_src0(pp_core); + } + else + { + val = mali_pp_core_get_counter_src1(pp_core); + } + + if (MALI_HW_CORE_NO_COUNTER == val) + { + r = sprintf(buf, "-1\n"); + } + else + { + r = sprintf(buf, "%u\n", val); + } + return simple_read_from_buffer(ubuf, cnt, ppos, buf, r); +} + +static ssize_t pp_ppx_counter_srcx_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos, u32 src_id) +{ + struct mali_pp_core *pp_core = (struct mali_pp_core *)filp->private_data; + char buf[64]; + long val; + int ret; + + if (cnt >= sizeof(buf)) + { + return -EINVAL; + } + + if (copy_from_user(&buf, ubuf, cnt)) + { + return -EFAULT; + } + + buf[cnt] = 0; + + ret = strict_strtol(buf, 10, &val); + if (ret < 0) + { + return ret; + } + + if (val < 0) + { + /* any negative input will disable counter */ + val = MALI_HW_CORE_NO_COUNTER; + } + + if (0 == src_id) + { + if (MALI_TRUE != mali_pp_core_set_counter_src0(pp_core, (u32)val)) + { + return 0; + } + } + else + { + if (MALI_TRUE != mali_pp_core_set_counter_src1(pp_core, (u32)val)) + { + return 0; + } + } + + *ppos += cnt; + return cnt; +} + +static ssize_t pp_all_counter_srcx_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos, u32 src_id) +{ + char buf[64]; + long val; + int ret; + u32 ci; + struct mali_cluster *cluster; + + if (cnt >= sizeof(buf)) + { + return -EINVAL; + } + + if (copy_from_user(&buf, ubuf, cnt)) + { + return -EFAULT; + } + + buf[cnt] = 0; + + ret = strict_strtol(buf, 10, &val); + if (ret < 0) + { + return ret; + } + + if (val < 0) + { + /* any negative input will disable counter */ + val = MALI_HW_CORE_NO_COUNTER; + } + + ci = 0; + cluster = mali_cluster_get_global_cluster(ci); + while (NULL != cluster) + { + u32 gi = 0; + struct mali_group *group = mali_cluster_get_group(cluster, gi); + while (NULL != group) + { + struct mali_pp_core *pp_core = mali_group_get_pp_core(group); + if (NULL != pp_core) + { + if (0 == src_id) + { + if (MALI_TRUE != mali_pp_core_set_counter_src0(pp_core, (u32)val)) + { + return 0; + } + } + else + { + if (MALI_TRUE != mali_pp_core_set_counter_src1(pp_core, (u32)val)) + { + return 0; + } + } + } + + /* try next group */ + gi++; + group = mali_cluster_get_group(cluster, gi); + } + + /* try next cluster */ + ci++; + cluster = mali_cluster_get_global_cluster(ci); + } + + *ppos += cnt; + return cnt; +} + +static ssize_t pp_ppx_counter_src0_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos) +{ + return pp_ppx_counter_srcx_read(filp, ubuf, cnt, ppos, 0); +} + +static ssize_t pp_ppx_counter_src1_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos) +{ + return pp_ppx_counter_srcx_read(filp, ubuf, cnt, ppos, 1); +} + +static ssize_t pp_ppx_counter_src0_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) +{ + return pp_ppx_counter_srcx_write(filp, ubuf, cnt, ppos, 0); +} + +static ssize_t pp_ppx_counter_src1_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) +{ + return pp_ppx_counter_srcx_write(filp, ubuf, cnt, ppos, 1); +} + +static ssize_t pp_all_counter_src0_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) +{ + return pp_all_counter_srcx_write(filp, ubuf, cnt, ppos, 0); +} + +static ssize_t pp_all_counter_src1_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) +{ + return pp_all_counter_srcx_write(filp, ubuf, cnt, ppos, 1); +} + +static const struct file_operations pp_ppx_counter_src0_fops = { + .owner = THIS_MODULE, + .open = open_copy_private_data, + .read = pp_ppx_counter_src0_read, + .write = pp_ppx_counter_src0_write, +}; + +static const struct file_operations pp_ppx_counter_src1_fops = { + .owner = THIS_MODULE, + .open = open_copy_private_data, + .read = pp_ppx_counter_src1_read, + .write = pp_ppx_counter_src1_write, +}; + +static const struct file_operations pp_all_counter_src0_fops = { + .owner = THIS_MODULE, + .write = pp_all_counter_src0_write, +}; + +static const struct file_operations pp_all_counter_src1_fops = { + .owner = THIS_MODULE, + .write = pp_all_counter_src1_write, +}; + + + + + + +static ssize_t l2_l2x_counter_srcx_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos, u32 src_id) +{ + char buf[64]; + int r; + u32 val; + struct mali_l2_cache_core *l2_core = (struct mali_l2_cache_core *)filp->private_data; + + if (0 == src_id) + { + val = mali_l2_cache_core_get_counter_src0(l2_core); + } + else + { + val = mali_l2_cache_core_get_counter_src1(l2_core); + } + + if (MALI_HW_CORE_NO_COUNTER == val) + { + r = sprintf(buf, "-1\n"); + } + else + { + r = sprintf(buf, "%u\n", val); + } + return simple_read_from_buffer(ubuf, cnt, ppos, buf, r); +} + +static ssize_t l2_l2x_counter_srcx_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos, u32 src_id) +{ + struct mali_l2_cache_core *l2_core = (struct mali_l2_cache_core *)filp->private_data; + char buf[64]; + long val; + int ret; + + if (cnt >= sizeof(buf)) + { + return -EINVAL; + } + + if (copy_from_user(&buf, ubuf, cnt)) + { + return -EFAULT; + } + + buf[cnt] = 0; + + ret = strict_strtol(buf, 10, &val); + if (ret < 0) + { + return ret; + } + + if (val < 0) + { + /* any negative input will disable counter */ + val = MALI_HW_CORE_NO_COUNTER; + } + + if (0 == src_id) + { + if (MALI_TRUE != mali_l2_cache_core_set_counter_src0(l2_core, (u32)val)) + { + return 0; + } + } + else + { + if (MALI_TRUE != mali_l2_cache_core_set_counter_src1(l2_core, (u32)val)) + { + return 0; + } + } + + *ppos += cnt; + return cnt; +} + +static ssize_t l2_all_counter_srcx_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos, u32 src_id) +{ + char buf[64]; + long val; + int ret; + u32 l2_id; + struct mali_l2_cache_core *l2_cache; + + if (cnt >= sizeof(buf)) + { + return -EINVAL; + } + + if (copy_from_user(&buf, ubuf, cnt)) + { + return -EFAULT; + } + + buf[cnt] = 0; + + ret = strict_strtol(buf, 10, &val); + if (ret < 0) + { + return ret; + } + + if (val < 0) + { + /* any negative input will disable counter */ + val = MALI_HW_CORE_NO_COUNTER; + } + + l2_id = 0; + l2_cache = mali_l2_cache_core_get_glob_l2_core(l2_id); + while (NULL != l2_cache) + { + if (0 == src_id) + { + if (MALI_TRUE != mali_l2_cache_core_set_counter_src0(l2_cache, (u32)val)) + { + return 0; + } + } + else + { + if (MALI_TRUE != mali_l2_cache_core_set_counter_src1(l2_cache, (u32)val)) + { + return 0; + } + } + + /* try next L2 */ + l2_id++; + l2_cache = mali_l2_cache_core_get_glob_l2_core(l2_id); + } + + *ppos += cnt; + return cnt; +} + +static ssize_t l2_l2x_counter_src0_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos) +{ + return l2_l2x_counter_srcx_read(filp, ubuf, cnt, ppos, 0); +} + +static ssize_t l2_l2x_counter_src1_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos) +{ + return l2_l2x_counter_srcx_read(filp, ubuf, cnt, ppos, 1); +} + +static ssize_t l2_l2x_counter_src0_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) +{ + return l2_l2x_counter_srcx_write(filp, ubuf, cnt, ppos, 0); +} + +static ssize_t l2_l2x_counter_src1_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) +{ + return l2_l2x_counter_srcx_write(filp, ubuf, cnt, ppos, 1); +} + +static ssize_t l2_all_counter_src0_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) +{ + return l2_all_counter_srcx_write(filp, ubuf, cnt, ppos, 0); +} + +static ssize_t l2_all_counter_src1_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) +{ + return l2_all_counter_srcx_write(filp, ubuf, cnt, ppos, 1); +} + +static const struct file_operations l2_l2x_counter_src0_fops = { + .owner = THIS_MODULE, + .open = open_copy_private_data, + .read = l2_l2x_counter_src0_read, + .write = l2_l2x_counter_src0_write, +}; + +static const struct file_operations l2_l2x_counter_src1_fops = { + .owner = THIS_MODULE, + .open = open_copy_private_data, + .read = l2_l2x_counter_src1_read, + .write = l2_l2x_counter_src1_write, +}; + +static const struct file_operations l2_all_counter_src0_fops = { + .owner = THIS_MODULE, + .write = l2_all_counter_src0_write, +}; + +static const struct file_operations l2_all_counter_src1_fops = { + .owner = THIS_MODULE, + .write = l2_all_counter_src1_write, +}; + +static ssize_t power_events_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) +{ + + memset(pwr_buf,0,POWER_BUFFER_SIZE); + virtual_power_status_register = 0; + if (!strncmp(ubuf,mali_power_events[_MALI_DEVICE_SUSPEND],strlen(mali_power_events[_MALI_DEVICE_SUSPEND]))) + { + mali_pm_os_suspend(); + /* @@@@ assuming currently suspend is successful later on to tune as per previous*/ + virtual_power_status_register =1; + + } + else if (!strncmp(ubuf,mali_power_events[_MALI_DEVICE_RESUME],strlen(mali_power_events[_MALI_DEVICE_RESUME]))) + { + mali_pm_os_resume(); + + /* @@@@ assuming currently resume is successful later on to tune as per previous */ + virtual_power_status_register = 1; + } + else if (!strncmp(ubuf,mali_power_events[_MALI_DEVICE_DVFS_PAUSE],strlen(mali_power_events[_MALI_DEVICE_DVFS_PAUSE]))) + { + mali_bool power_on; + mali_dev_pause(&power_on); + if (!power_on) + { + virtual_power_status_register = 2; + mali_dev_resume(); + } + else + { + /* @@@@ assuming currently resume is successful later on to tune as per previous */ + virtual_power_status_register =1; + } + } + else if (!strncmp(ubuf,mali_power_events[_MALI_DEVICE_DVFS_RESUME],strlen(mali_power_events[_MALI_DEVICE_DVFS_RESUME]))) + { + mali_dev_resume(); + /* @@@@ assuming currently resume is successful later on to tune as per previous */ + virtual_power_status_register = 1; + + } + *ppos += cnt; + sprintf(pwr_buf, "%d",virtual_power_status_register); + return cnt; +} + +static ssize_t power_events_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos) +{ + return simple_read_from_buffer(ubuf, cnt, ppos, pwr_buf, POWER_BUFFER_SIZE); +} + +static loff_t power_events_seek(struct file *file, loff_t offset, int orig) +{ + file->f_pos = offset; + return 0; +} + +static const struct file_operations power_events_fops = { + .owner = THIS_MODULE, + .read = power_events_read, + .write = power_events_write, + .llseek = power_events_seek, +}; + + +#if MALI_STATE_TRACKING +static int mali_seq_internal_state_show(struct seq_file *seq_file, void *v) +{ + u32 len = 0; + u32 size; + char *buf; + + size = seq_get_buf(seq_file, &buf); + + if(!size) + { + return -ENOMEM; + } + + /* Create the internal state dump. */ + len = snprintf(buf+len, size-len, "Mali device driver %s\n", SVN_REV_STRING); + len += snprintf(buf+len, size-len, "License: %s\n\n", MALI_KERNEL_LINUX_LICENSE); + + len += _mali_kernel_core_dump_state(buf + len, size - len); + + seq_commit(seq_file, len); + + return 0; +} + +static int mali_seq_internal_state_open(struct inode *inode, struct file *file) +{ + return single_open(file, mali_seq_internal_state_show, NULL); +} + +static const struct file_operations mali_seq_internal_state_fops = { + .owner = THIS_MODULE, + .open = mali_seq_internal_state_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; +#endif /* MALI_STATE_TRACKING */ + + +#if MALI_INTERNAL_TIMELINE_PROFILING_ENABLED +static ssize_t profiling_record_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos) +{ + char buf[64]; + int r; + + r = sprintf(buf, "%u\n", _mali_osk_profiling_is_recording() ? 1 : 0); + return simple_read_from_buffer(ubuf, cnt, ppos, buf, r); +} + +static ssize_t profiling_record_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) +{ + char buf[64]; + unsigned long val; + int ret; + + if (cnt >= sizeof(buf)) + { + return -EINVAL; + } + + if (copy_from_user(&buf, ubuf, cnt)) + { + return -EFAULT; + } + + buf[cnt] = 0; + + ret = strict_strtoul(buf, 10, &val); + if (ret < 0) + { + return ret; + } + + if (val != 0) + { + u32 limit = MALI_PROFILING_MAX_BUFFER_ENTRIES; /* This can be made configurable at a later stage if we need to */ + + /* check if we are already recording */ + if (MALI_TRUE == _mali_osk_profiling_is_recording()) + { + MALI_DEBUG_PRINT(3, ("Recording of profiling events already in progress\n")); + return -EFAULT; + } + + /* check if we need to clear out an old recording first */ + if (MALI_TRUE == _mali_osk_profiling_have_recording()) + { + if (_MALI_OSK_ERR_OK != _mali_osk_profiling_clear()) + { + MALI_DEBUG_PRINT(3, ("Failed to clear existing recording of profiling events\n")); + return -EFAULT; + } + } + + /* start recording profiling data */ + if (_MALI_OSK_ERR_OK != _mali_osk_profiling_start(&limit)) + { + MALI_DEBUG_PRINT(3, ("Failed to start recording of profiling events\n")); + return -EFAULT; + } + + MALI_DEBUG_PRINT(3, ("Profiling recording started (max %u events)\n", limit)); + } + else + { + /* stop recording profiling data */ + u32 count = 0; + if (_MALI_OSK_ERR_OK != _mali_osk_profiling_stop(&count)) + { + MALI_DEBUG_PRINT(2, ("Failed to stop recording of profiling events\n")); + return -EFAULT; + } + + MALI_DEBUG_PRINT(2, ("Profiling recording stopped (recorded %u events)\n", count)); + } + + *ppos += cnt; + return cnt; +} + +static const struct file_operations profiling_record_fops = { + .owner = THIS_MODULE, + .read = profiling_record_read, + .write = profiling_record_write, +}; + +static void *profiling_events_start(struct seq_file *s, loff_t *pos) +{ + loff_t *spos; + + /* check if we have data avaiable */ + if (MALI_TRUE != _mali_osk_profiling_have_recording()) + { + return NULL; + } + + spos = kmalloc(sizeof(loff_t), GFP_KERNEL); + if (NULL == spos) + { + return NULL; + } + + *spos = *pos; + return spos; +} + +static void *profiling_events_next(struct seq_file *s, void *v, loff_t *pos) +{ + loff_t *spos = v; + + /* check if we have data avaiable */ + if (MALI_TRUE != _mali_osk_profiling_have_recording()) + { + return NULL; + } + + /* check if the next entry actually is avaiable */ + if (_mali_osk_profiling_get_count() <= (u32)(*spos + 1)) + { + return NULL; + } + + *pos = ++*spos; + return spos; +} + +static void profiling_events_stop(struct seq_file *s, void *v) +{ + kfree(v); +} + +static int profiling_events_show(struct seq_file *seq_file, void *v) +{ + loff_t *spos = v; + u32 index; + u64 timestamp; + u32 event_id; + u32 data[5]; + + index = (u32)*spos; + + /* Retrieve all events */ + if (_MALI_OSK_ERR_OK == _mali_osk_profiling_get_event(index, ×tamp, &event_id, data)) + { + seq_printf(seq_file, "%llu %u %u %u %u %u %u\n", timestamp, event_id, data[0], data[1], data[2], data[3], data[4]); + return 0; + } + + return 0; +} + +static const struct seq_operations profiling_events_seq_ops = { + .start = profiling_events_start, + .next = profiling_events_next, + .stop = profiling_events_stop, + .show = profiling_events_show +}; + +static int profiling_events_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &profiling_events_seq_ops); +} + +static const struct file_operations profiling_events_fops = { + .owner = THIS_MODULE, + .open = profiling_events_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; +#endif + +static ssize_t memory_used_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos) +{ + char buf[64]; + size_t r; + u32 mem = _mali_ukk_report_memory_usage(); + + r = snprintf(buf, 64, "%u\n", mem); + return simple_read_from_buffer(ubuf, cnt, ppos, buf, r); +} + +static const struct file_operations memory_usage_fops = { + .owner = THIS_MODULE, + .read = memory_used_read, +}; + + +static ssize_t user_settings_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) +{ + unsigned long val; + int ret; + _mali_uk_user_setting_t setting; + char buf[32]; + + cnt = min(cnt, sizeof(buf) - 1); + if (copy_from_user(buf, ubuf, cnt)) + { + return -EFAULT; + } + buf[cnt] = '\0'; + + ret = strict_strtoul(buf, 10, &val); + if (0 != ret) + { + return ret; + } + + /* Update setting */ + setting = (_mali_uk_user_setting_t)(filp->private_data); + mali_set_user_setting(setting, val); + + *ppos += cnt; + return cnt; +} + +static ssize_t user_settings_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos) +{ + char buf[64]; + size_t r; + u32 value; + _mali_uk_user_setting_t setting; + + setting = (_mali_uk_user_setting_t)(filp->private_data); + value = mali_get_user_setting(setting); + + r = snprintf(buf, 64, "%u\n", value); + return simple_read_from_buffer(ubuf, cnt, ppos, buf, r); +} + +static const struct file_operations user_settings_fops = { + .owner = THIS_MODULE, + .open = open_copy_private_data, + .read = user_settings_read, + .write = user_settings_write, +}; + +static int mali_sysfs_user_settings_register(void) +{ + struct dentry *mali_user_settings_dir = debugfs_create_dir("userspace_settings", mali_debugfs_dir); + + if (mali_user_settings_dir != NULL) + { + int i; + for (i = 0; i < _MALI_UK_USER_SETTING_MAX; i++) + { + debugfs_create_file(_mali_uk_user_setting_descriptions[i], 0600, mali_user_settings_dir, (void*)i, &user_settings_fops); + } + } + + return 0; +} + +int mali_sysfs_register(struct mali_dev *device, dev_t dev, const char *mali_dev_name) +{ + int err = 0; + + device->mali_class = class_create(THIS_MODULE, mali_dev_name); + if (IS_ERR(device->mali_class)) + { + err = PTR_ERR(device->mali_class); + goto init_class_err; + } + mali_device = device_create(device->mali_class, NULL, dev, NULL, mali_dev_name); + if (IS_ERR(mali_device)) + { + err = PTR_ERR(mali_device); + goto init_mdev_err; + } + + mali_debugfs_dir = debugfs_create_dir(mali_dev_name, NULL); + if(ERR_PTR(-ENODEV) == mali_debugfs_dir) + { + /* Debugfs not supported. */ + mali_debugfs_dir = NULL; + } + else + { + if(NULL != mali_debugfs_dir) + { + /* Debugfs directory created successfully; create files now */ + struct dentry *mali_power_dir; + struct dentry *mali_gp_dir; + struct dentry *mali_pp_dir; + struct dentry *mali_l2_dir; +#if MALI_INTERNAL_TIMELINE_PROFILING_ENABLED + struct dentry *mali_profiling_dir; +#endif + + mali_power_dir = debugfs_create_dir("power", mali_debugfs_dir); + if (mali_power_dir != NULL) + { + debugfs_create_file("power_events", 0400, mali_power_dir, NULL, &power_events_fops); + } + + mali_gp_dir = debugfs_create_dir("gp", mali_debugfs_dir); + if (mali_gp_dir != NULL) + { + struct dentry *mali_gp_all_dir; + u32 ci; + struct mali_cluster *cluster; + + mali_gp_all_dir = debugfs_create_dir("all", mali_gp_dir); + if (mali_gp_all_dir != NULL) + { + debugfs_create_file("counter_src0", 0400, mali_gp_all_dir, NULL, &gp_all_counter_src0_fops); + debugfs_create_file("counter_src1", 0400, mali_gp_all_dir, NULL, &gp_all_counter_src1_fops); + } + + ci = 0; + cluster = mali_cluster_get_global_cluster(ci); + while (NULL != cluster) + { + u32 gi = 0; + struct mali_group *group = mali_cluster_get_group(cluster, gi); + while (NULL != group) + { + struct mali_gp_core *gp_core = mali_group_get_gp_core(group); + if (NULL != gp_core) + { + struct dentry *mali_gp_gpx_dir; + mali_gp_gpx_dir = debugfs_create_dir("gp0", mali_gp_dir); + if (NULL != mali_gp_gpx_dir) + { + debugfs_create_file("counter_src0", 0600, mali_gp_gpx_dir, gp_core, &gp_gpx_counter_src0_fops); + debugfs_create_file("counter_src1", 0600, mali_gp_gpx_dir, gp_core, &gp_gpx_counter_src1_fops); + } + break; /* no need to look for any other GP cores */ + } + + /* try next group */ + gi++; + group = mali_cluster_get_group(cluster, gi); + } + + /* try next cluster */ + ci++; + cluster = mali_cluster_get_global_cluster(ci); + } + } + + mali_pp_dir = debugfs_create_dir("pp", mali_debugfs_dir); + if (mali_pp_dir != NULL) + { + struct dentry *mali_pp_all_dir; + u32 ci; + struct mali_cluster *cluster; + + mali_pp_all_dir = debugfs_create_dir("all", mali_pp_dir); + if (mali_pp_all_dir != NULL) + { + debugfs_create_file("counter_src0", 0400, mali_pp_all_dir, NULL, &pp_all_counter_src0_fops); + debugfs_create_file("counter_src1", 0400, mali_pp_all_dir, NULL, &pp_all_counter_src1_fops); + } + + ci = 0; + cluster = mali_cluster_get_global_cluster(ci); + while (NULL != cluster) + { + u32 gi = 0; + struct mali_group *group = mali_cluster_get_group(cluster, gi); + while (NULL != group) + { + struct mali_pp_core *pp_core = mali_group_get_pp_core(group); + if (NULL != pp_core) + { + char buf[16]; + struct dentry *mali_pp_ppx_dir; + _mali_osk_snprintf(buf, sizeof(buf), "pp%u", mali_pp_core_get_id(pp_core)); + mali_pp_ppx_dir = debugfs_create_dir(buf, mali_pp_dir); + if (NULL != mali_pp_ppx_dir) + { + debugfs_create_file("counter_src0", 0600, mali_pp_ppx_dir, pp_core, &pp_ppx_counter_src0_fops); + debugfs_create_file("counter_src1", 0600, mali_pp_ppx_dir, pp_core, &pp_ppx_counter_src1_fops); + } + } + + /* try next group */ + gi++; + group = mali_cluster_get_group(cluster, gi); + } + + /* try next cluster */ + ci++; + cluster = mali_cluster_get_global_cluster(ci); + } + } + + mali_l2_dir = debugfs_create_dir("l2", mali_debugfs_dir); + if (mali_l2_dir != NULL) + { + struct dentry *mali_l2_all_dir; + u32 l2_id; + struct mali_l2_cache_core *l2_cache; + + mali_l2_all_dir = debugfs_create_dir("all", mali_l2_dir); + if (mali_l2_all_dir != NULL) + { + debugfs_create_file("counter_src0", 0400, mali_l2_all_dir, NULL, &l2_all_counter_src0_fops); + debugfs_create_file("counter_src1", 0400, mali_l2_all_dir, NULL, &l2_all_counter_src1_fops); + } + + l2_id = 0; + l2_cache = mali_l2_cache_core_get_glob_l2_core(l2_id); + while (NULL != l2_cache) + { + char buf[16]; + struct dentry *mali_l2_l2x_dir; + _mali_osk_snprintf(buf, sizeof(buf), "l2%u", l2_id); + mali_l2_l2x_dir = debugfs_create_dir(buf, mali_l2_dir); + if (NULL != mali_l2_l2x_dir) + { + debugfs_create_file("counter_src0", 0600, mali_l2_l2x_dir, l2_cache, &l2_l2x_counter_src0_fops); + debugfs_create_file("counter_src1", 0600, mali_l2_l2x_dir, l2_cache, &l2_l2x_counter_src1_fops); + } + + /* try next L2 */ + l2_id++; + l2_cache = mali_l2_cache_core_get_glob_l2_core(l2_id); + } + } + + debugfs_create_file("memory_usage", 0400, mali_debugfs_dir, NULL, &memory_usage_fops); + +#if MALI_INTERNAL_TIMELINE_PROFILING_ENABLED + mali_profiling_dir = debugfs_create_dir("profiling", mali_debugfs_dir); + if (mali_profiling_dir != NULL) + { + struct dentry *mali_profiling_proc_dir = debugfs_create_dir("proc", mali_profiling_dir); + if (mali_profiling_proc_dir != NULL) + { + struct dentry *mali_profiling_proc_default_dir = debugfs_create_dir("default", mali_profiling_proc_dir); + if (mali_profiling_proc_default_dir != NULL) + { + debugfs_create_file("enable", 0600, mali_profiling_proc_default_dir, (void*)_MALI_UK_USER_SETTING_SW_EVENTS_ENABLE, &user_settings_fops); + } + } + debugfs_create_file("record", 0600, mali_profiling_dir, NULL, &profiling_record_fops); + debugfs_create_file("events", 0400, mali_profiling_dir, NULL, &profiling_events_fops); + } +#endif + +#if MALI_STATE_TRACKING + debugfs_create_file("state_dump", 0400, mali_debugfs_dir, NULL, &mali_seq_internal_state_fops); +#endif + + if (mali_sysfs_user_settings_register()) + { + /* Failed to create the debugfs entries for the user settings DB. */ + MALI_DEBUG_PRINT(2, ("Failed to create user setting debugfs files. Ignoring...\n")); + } + } + } + + /* Success! */ + return 0; + + /* Error handling */ +init_mdev_err: + class_destroy(device->mali_class); +init_class_err: + + return err; +} + +int mali_sysfs_unregister(struct mali_dev *device, dev_t dev, const char *mali_dev_name) +{ + if(NULL != mali_debugfs_dir) + { + debugfs_remove_recursive(mali_debugfs_dir); + } + device_destroy(device->mali_class, dev); + class_destroy(device->mali_class); + + return 0; +} + +#else + +/* Dummy implementations for non-GPL */ + +int mali_sysfs_register(struct mali_dev *device, dev_t dev, const char *mali_dev_name) +{ + return 0; +} + +int mali_sysfs_unregister(struct mali_dev *device, dev_t dev, const char *mali_dev_name) +{ + return 0; +} + + +#endif diff --git a/drivers/media/video/samsung/mali/linux/mali_kernel_sysfs.h b/drivers/media/video/samsung/mali/linux/mali_kernel_sysfs.h new file mode 100644 index 0000000..24acca9 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_kernel_sysfs.h @@ -0,0 +1,35 @@ +/* + * Copyright (C) 2011-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __MALI_KERNEL_SYSFS_H__ +#define __MALI_KERNEL_SYSFS_H__ + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <linux/device.h> + +#define MALI_PROC_DIR "driver/mali" + +extern struct device *mali_device; +struct mali_dev; + +int mali_sysfs_register(struct mali_dev *mali_class, dev_t dev, const char *mali_dev_name); + +int mali_sysfs_unregister(struct mali_dev *mali_class, dev_t dev, const char *mali_dev_name); + + +#ifdef __cplusplus +} +#endif + +#endif /* __MALI_KERNEL_LINUX_H__ */ diff --git a/drivers/media/video/samsung/mali/linux/mali_linux_pm.h b/drivers/media/video/samsung/mali/linux/mali_linux_pm.h new file mode 100644 index 0000000..10f633e --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_linux_pm.h @@ -0,0 +1,50 @@ + +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __MALI_LINUX_PM_H__ +#define __MALI_LINUX_PM_H__ + +#ifdef CONFIG_PM +/* Number of power states supported for making power up and down */ +typedef enum +{ + _MALI_DEVICE_SUSPEND, /* Suspend */ + _MALI_DEVICE_RESUME, /* Resume */ + _MALI_DEVICE_MAX_POWER_STATES, /* Maximum power states */ +} _mali_device_power_states; + +/* Number of DVFS events */ +typedef enum +{ + _MALI_DVFS_PAUSE_EVENT = _MALI_DEVICE_MAX_POWER_STATES, /* DVFS Pause event */ + _MALI_DVFS_RESUME_EVENT, /* DVFS Resume event */ + _MALI_MAX_DEBUG_OPERATIONS, +} _mali_device_dvfs_events; + +extern _mali_device_power_states mali_device_state; +extern _mali_device_power_states mali_dvfs_device_state; +extern _mali_osk_lock_t *lock; +extern short is_wake_up_needed; +extern int timeout_fired; +extern struct platform_device mali_gpu_device; + +/* dvfs pm thread */ +extern struct task_struct *dvfs_pm_thread; + +/* Power management thread */ +extern struct task_struct *pm_thread; + +int mali_device_suspend(u32 event_id, struct task_struct **pwr_mgmt_thread); +int mali_device_resume(u32 event_id, struct task_struct **pwr_mgmt_thread); +int mali_get_ospmm_thread_state(void); + +#endif /* CONFIG_PM */ +#endif /* __MALI_LINUX_PM_H___ */ diff --git a/drivers/media/video/samsung/mali/linux/mali_linux_pm_testsuite.h b/drivers/media/video/samsung/mali/linux/mali_linux_pm_testsuite.h new file mode 100644 index 0000000..7d811bd --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_linux_pm_testsuite.h @@ -0,0 +1,32 @@ +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#ifndef __MALI_LINUX_PM_TESTSUITE_H__ +#define __MALI_LINUX_PM_TESTSUITE_H__ + +#if MALI_POWER_MGMT_TEST_SUITE && defined(CONFIG_PM) + +typedef enum +{ + _MALI_DEVICE_PMM_TIMEOUT_EVENT, + _MALI_DEVICE_PMM_JOB_SCHEDULING_EVENTS, + _MALI_DEVICE_PMM_REGISTERED_CORES, + _MALI_DEVICE_MAX_PMM_EVENTS + +} _mali_device_pmm_recording_events; + +extern unsigned int mali_timeout_event_recording_on; +extern unsigned int mali_job_scheduling_events_recording_on; +extern unsigned int pwr_mgmt_status_reg; +extern unsigned int is_mali_pmm_testsuite_enabled; +extern unsigned int is_mali_pmu_present; + +#endif /* MALI_POWER_MGMT_TEST_SUITE && defined(CONFIG_PM) */ + +#endif /* __MALI_LINUX_PM_TESTSUITE_H__ */ diff --git a/drivers/media/video/samsung/mali/linux/mali_linux_trace.h b/drivers/media/video/samsung/mali/linux/mali_linux_trace.h new file mode 100644 index 0000000..5329ba3 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_linux_trace.h @@ -0,0 +1,126 @@ +/* + * Copyright (C) 2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#if !defined (MALI_LINUX_TRACE_H) || defined (TRACE_HEADER_MULTI_READ) +#define MALI_LINUX_TRACE_H + +#include <linux/types.h> + +#include <linux/stringify.h> +#include <linux/tracepoint.h> + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM mali +#define TRACE_SYSTEM_STRING __stringfy(TRACE_SYSTEM) + +#define TRACE_INCLUDE_PATH . +#define TRACE_INCLUDE_FILE mali_linux_trace + +/** + * Define the tracepoint used to communicate the status of a GPU. Called + * when a GPU turns on or turns off. + * + * @param event_id The type of the event. This parameter is a bitfield + * encoding the type of the event. + * + * @param d0 First data parameter. + * @param d1 Second data parameter. + * @param d2 Third data parameter. + * @param d3 Fourth data parameter. + * @param d4 Fifth data parameter. + */ +TRACE_EVENT(mali_timeline_event, + + TP_PROTO(unsigned int event_id, unsigned int d0, unsigned int d1, + unsigned int d2, unsigned int d3, unsigned int d4), + + TP_ARGS(event_id, d0, d1, d2, d3, d4), + + TP_STRUCT__entry( + __field(unsigned int, event_id) + __field(unsigned int, d0) + __field(unsigned int, d1) + __field(unsigned int, d2) + __field(unsigned int, d3) + __field(unsigned int, d4) + ), + + TP_fast_assign( + __entry->event_id = event_id; + __entry->d0 = d0; + __entry->d1 = d1; + __entry->d2 = d2; + __entry->d3 = d3; + __entry->d4 = d4; + ), + + TP_printk("event=%d", __entry->event_id) +); + +/** + * Define a tracepoint used to regsiter the value of a hardware counter. + * Hardware counters belonging to the vertex or fragment processor are + * reported via this tracepoint each frame, whilst L2 cache hardware + * counters are reported continuously. + * + * @param counter_id The counter ID. + * @param value The value of the counter. + */ +TRACE_EVENT(mali_hw_counter, + + TP_PROTO(unsigned int counter_id, unsigned int value), + + TP_ARGS(counter_id, value), + + TP_STRUCT__entry( + __field(unsigned int, counter_id) + __field(unsigned int, value) + ), + + TP_fast_assign( + __entry->counter_id = counter_id; + ), + + TP_printk("event %d = %d", __entry->counter_id, __entry->value) +); + +/** + * Define a tracepoint used to send a bundle of software counters. + * + * @param counters The bundle of counters. + */ +TRACE_EVENT(mali_sw_counters, + + TP_PROTO(pid_t pid, pid_t tid, void * surface_id, unsigned int * counters), + + TP_ARGS(pid, tid, surface_id, counters), + + TP_STRUCT__entry( + __field(pid_t, pid) + __field(pid_t, tid) + __field(void *, surface_id) + __field(unsigned int *, counters) + ), + + TP_fast_assign( + __entry->pid = pid; + __entry->tid = tid; + __entry->surface_id = surface_id; + __entry->counters = counters; + ), + + TP_printk("counters were %s", __entry->counters == NULL? "NULL" : "not NULL") +); + +#endif /* MALI_LINUX_TRACE_H */ + +/* This part must exist outside the header guard. */ +#include <trace/define_trace.h> + diff --git a/drivers/media/video/samsung/mali/linux/mali_osk_atomics.c b/drivers/media/video/samsung/mali/linux/mali_osk_atomics.c new file mode 100644 index 0000000..32f8e6b --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_osk_atomics.c @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2010, 2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_osk_atomics.c + * Implementation of the OS abstraction layer for the kernel device driver + */ + +#include "mali_osk.h" +#include <asm/atomic.h> +#include "mali_kernel_common.h" + +void _mali_osk_atomic_dec( _mali_osk_atomic_t *atom ) +{ + atomic_dec((atomic_t *)&atom->u.val); +} + +u32 _mali_osk_atomic_dec_return( _mali_osk_atomic_t *atom ) +{ + return atomic_dec_return((atomic_t *)&atom->u.val); +} + +void _mali_osk_atomic_inc( _mali_osk_atomic_t *atom ) +{ + atomic_inc((atomic_t *)&atom->u.val); +} + +u32 _mali_osk_atomic_inc_return( _mali_osk_atomic_t *atom ) +{ + return atomic_inc_return((atomic_t *)&atom->u.val); +} + +_mali_osk_errcode_t _mali_osk_atomic_init( _mali_osk_atomic_t *atom, u32 val ) +{ + MALI_CHECK_NON_NULL(atom, _MALI_OSK_ERR_INVALID_ARGS); + atomic_set((atomic_t *)&atom->u.val, val); + return _MALI_OSK_ERR_OK; +} + +u32 _mali_osk_atomic_read( _mali_osk_atomic_t *atom ) +{ + return atomic_read((atomic_t *)&atom->u.val); +} + +void _mali_osk_atomic_term( _mali_osk_atomic_t *atom ) +{ + MALI_IGNORE(atom); +} diff --git a/drivers/media/video/samsung/mali/linux/mali_osk_irq.c b/drivers/media/video/samsung/mali/linux/mali_osk_irq.c new file mode 100644 index 0000000..ddfe564 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_osk_irq.c @@ -0,0 +1,266 @@ +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_osk_irq.c + * Implementation of the OS abstraction layer for the kernel device driver + */ + +#include <linux/slab.h> /* For memory allocation */ +#include <linux/workqueue.h> +#include <linux/version.h> + +#include "mali_osk.h" +#include "mali_kernel_common.h" +#include "mali_kernel_license.h" +#include "mali_kernel_linux.h" +#include "linux/interrupt.h" + +typedef struct _mali_osk_irq_t_struct +{ + u32 irqnum; + void *data; + _mali_osk_irq_uhandler_t uhandler; + _mali_osk_irq_bhandler_t bhandler; + struct work_struct work_queue_irq_handle; /* Workqueue for the bottom half of the IRQ-handling. This job is activated when this core gets an IRQ.*/ +} mali_osk_irq_object_t; + +#if MALI_LICENSE_IS_GPL +static struct workqueue_struct *pmm_wq = NULL; +struct workqueue_struct *mali_wq = NULL; +#endif + +typedef void (*workqueue_func_t)(void *); +typedef irqreturn_t (*irq_handler_func_t)(int, void *, struct pt_regs *); +static irqreturn_t irq_handler_upper_half (int port_name, void* dev_id ); /* , struct pt_regs *regs*/ + +#if defined(INIT_DELAYED_WORK) +static void irq_handler_bottom_half ( struct work_struct *work ); +#else +static void irq_handler_bottom_half ( void * input ); +#endif + +/** + * Linux kernel version has marked SA_SHIRQ as deprecated, IRQF_SHARED should be used. + * This is to handle older kernels which haven't done this swap. + */ +#ifndef IRQF_SHARED +#define IRQF_SHARED SA_SHIRQ +#endif /* IRQF_SHARED */ + +_mali_osk_irq_t *_mali_osk_irq_init( u32 irqnum, _mali_osk_irq_uhandler_t uhandler, _mali_osk_irq_bhandler_t bhandler, _mali_osk_irq_trigger_t trigger_func, _mali_osk_irq_ack_t ack_func, void *data, const char *description ) +{ + mali_osk_irq_object_t *irq_object; + + irq_object = kmalloc(sizeof(mali_osk_irq_object_t), GFP_KERNEL); + if (NULL == irq_object) return NULL; + +#if MALI_LICENSE_IS_GPL + if (NULL == mali_wq) + { +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36) + mali_wq = alloc_workqueue("mali", WQ_UNBOUND, 0); +#else + mali_wq = create_workqueue("mali"); +#endif + if(NULL == mali_wq) + { + MALI_PRINT_ERROR(("Unable to create Mali workqueue\n")); + kfree(irq_object); + return NULL; + } + } +#endif + + /* workqueue API changed in 2.6.20, support both versions: */ +#if defined(INIT_DELAYED_WORK) + /* New syntax: INIT_WORK( struct work_struct *work, void (*function)(struct work_struct *)) */ + INIT_WORK( &irq_object->work_queue_irq_handle, irq_handler_bottom_half); +#else + /* Old syntax: INIT_WORK( struct work_struct *work, void (*function)(void *), void *data) */ + INIT_WORK( &irq_object->work_queue_irq_handle, irq_handler_bottom_half, irq_object); +#endif /* defined(INIT_DELAYED_WORK) */ + + if (-1 == irqnum) + { + /* Probe for IRQ */ + if ( (NULL != trigger_func) && (NULL != ack_func) ) + { + unsigned long probe_count = 3; + _mali_osk_errcode_t err; + int irq; + + MALI_DEBUG_PRINT(2, ("Probing for irq\n")); + + do + { + unsigned long mask; + + mask = probe_irq_on(); + trigger_func(data); + + _mali_osk_time_ubusydelay(5); + + irq = probe_irq_off(mask); + err = ack_func(data); + } + while (irq < 0 && (err == _MALI_OSK_ERR_OK) && probe_count--); + + if (irq < 0 || (_MALI_OSK_ERR_OK != err)) irqnum = -1; + else irqnum = irq; + } + else irqnum = -1; /* no probe functions, fault */ + + if (-1 != irqnum) + { + /* found an irq */ + MALI_DEBUG_PRINT(2, ("Found irq %d\n", irqnum)); + } + else + { + MALI_DEBUG_PRINT(2, ("Probe for irq failed\n")); + } + } + + irq_object->irqnum = irqnum; + irq_object->uhandler = uhandler; + irq_object->bhandler = bhandler; + irq_object->data = data; + + /* Is this a real IRQ handler we need? */ + if (irqnum != _MALI_OSK_IRQ_NUMBER_FAKE && irqnum != _MALI_OSK_IRQ_NUMBER_PMM) + { + if (-1 == irqnum) + { + MALI_DEBUG_PRINT(2, ("No IRQ for core '%s' found during probe\n", description)); + kfree(irq_object); + return NULL; + } + + if (0 != request_irq(irqnum, irq_handler_upper_half, IRQF_SHARED, description, irq_object)) + { + MALI_DEBUG_PRINT(2, ("Unable to install IRQ handler for core '%s'\n", description)); + kfree(irq_object); + return NULL; + } + } + +#if MALI_LICENSE_IS_GPL + if ( _MALI_OSK_IRQ_NUMBER_PMM == irqnum ) + { + pmm_wq = create_singlethread_workqueue("mali-pmm-wq"); + } +#endif + + return irq_object; +} + +void _mali_osk_irq_schedulework( _mali_osk_irq_t *irq ) +{ + mali_osk_irq_object_t *irq_object = (mali_osk_irq_object_t *)irq; +#if MALI_LICENSE_IS_GPL + if ( irq_object->irqnum == _MALI_OSK_IRQ_NUMBER_PMM ) + { + queue_work( pmm_wq,&irq_object->work_queue_irq_handle ); + } + else + { + queue_work(mali_wq, &irq_object->work_queue_irq_handle); + } +#else + schedule_work(&irq_object->work_queue_irq_handle); +#endif +} + +void _mali_osk_flush_workqueue( _mali_osk_irq_t *irq ) +{ +#if MALI_LICENSE_IS_GPL + if (NULL != irq) + { + mali_osk_irq_object_t *irq_object = (mali_osk_irq_object_t *)irq; + if(irq_object->irqnum == _MALI_OSK_IRQ_NUMBER_PMM ) + { + flush_workqueue(pmm_wq); + } + else + { + flush_workqueue(mali_wq); + } + } + else + { + flush_workqueue(mali_wq); + } +#endif +} + +void _mali_osk_irq_term( _mali_osk_irq_t *irq ) +{ + mali_osk_irq_object_t *irq_object = (mali_osk_irq_object_t *)irq; + +#if MALI_LICENSE_IS_GPL + if(irq_object->irqnum == _MALI_OSK_IRQ_NUMBER_PMM ) + { + flush_workqueue(pmm_wq); + destroy_workqueue(pmm_wq); + } +#endif + free_irq(irq_object->irqnum, irq_object); + kfree(irq_object); + flush_scheduled_work(); +} + + +/** This function is called directly in interrupt context from the OS just after + * the CPU get the hw-irq from mali, or other devices on the same IRQ-channel. + * It is registered one of these function for each mali core. When an interrupt + * arrives this function will be called equal times as registered mali cores. + * That means that we only check one mali core in one function call, and the + * core we check for each turn is given by the \a dev_id variable. + * If we detect an pending interrupt on the given core, we mask the interrupt + * out by settging the core's IRQ_MASK register to zero. + * Then we schedule the mali_core_irq_handler_bottom_half to run as high priority + * work queue job. + */ +static irqreturn_t irq_handler_upper_half (int port_name, void* dev_id ) /* , struct pt_regs *regs*/ +{ + mali_osk_irq_object_t *irq_object = (mali_osk_irq_object_t *)dev_id; + + if (irq_object->uhandler(irq_object->data) == _MALI_OSK_ERR_OK) + { + return IRQ_HANDLED; + } + return IRQ_NONE; +} + +/* Is executed when an interrupt occur on one core */ +/* workqueue API changed in 2.6.20, support both versions: */ +#if defined(INIT_DELAYED_WORK) +static void irq_handler_bottom_half ( struct work_struct *work ) +#else +static void irq_handler_bottom_half ( void * input ) +#endif +{ + mali_osk_irq_object_t *irq_object; + +#if defined(INIT_DELAYED_WORK) + irq_object = _MALI_OSK_CONTAINER_OF(work, mali_osk_irq_object_t, work_queue_irq_handle); +#else + if ( NULL == input ) + { + MALI_PRINT_ERROR(("IRQ: Null pointer! Illegal!")); + return; /* Error */ + } + irq_object = (mali_osk_irq_object_t *) input; +#endif + + irq_object->bhandler(irq_object->data); +} + diff --git a/drivers/media/video/samsung/mali/linux/mali_osk_locks.c b/drivers/media/video/samsung/mali/linux/mali_osk_locks.c new file mode 100644 index 0000000..ee857d5 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_osk_locks.c @@ -0,0 +1,340 @@ +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_osk_locks.c + * Implemenation of the OS abstraction layer for the kernel device driver + */ + +/* needed to detect kernel version specific code */ +#include <linux/version.h> + +#include <linux/spinlock.h> +#include <linux/rwsem.h> + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) +#include <linux/semaphore.h> +#else /* pre 2.6.26 the file was in the arch specific location */ +#include <asm/semaphore.h> +#endif + +#include <linux/slab.h> +#include "mali_osk.h" +#include "mali_kernel_common.h" + +/* These are all the locks we implement: */ +typedef enum +{ + _MALI_OSK_INTERNAL_LOCKTYPE_SPIN, /* Mutex, implicitly non-interruptable, use spin_lock/spin_unlock */ + _MALI_OSK_INTERNAL_LOCKTYPE_SPIN_IRQ, /* Mutex, IRQ version of spinlock, use spin_lock_irqsave/spin_unlock_irqrestore */ + _MALI_OSK_INTERNAL_LOCKTYPE_MUTEX, /* Interruptable, use up()/down_interruptable() */ + _MALI_OSK_INTERNAL_LOCKTYPE_MUTEX_NONINT, /* Non-Interruptable, use up()/down() */ + _MALI_OSK_INTERNAL_LOCKTYPE_MUTEX_NONINT_RW, /* Non-interruptable, Reader/Writer, use {up,down}{read,write}() */ + + /* Linux supports, but we do not support: + * Non-Interruptable Reader/Writer spinlock mutexes - RW optimization will be switched off + */ + + /* Linux does not support: + * One-locks, of any sort - no optimization for this fact will be made. + */ + +} _mali_osk_internal_locktype; + +struct _mali_osk_lock_t_struct +{ + _mali_osk_internal_locktype type; + unsigned long flags; + union + { + spinlock_t spinlock; + struct semaphore sema; + struct rw_semaphore rw_sema; + } obj; + MALI_DEBUG_CODE( + /** original flags for debug checking */ + _mali_osk_lock_flags_t orig_flags; + + /* id of the thread currently holding this lock, 0 if no + * threads hold it. */ + u32 owner; + /* number of owners this lock currently has (can be > 1 if + * taken in R/O mode. */ + u32 nOwners; + /* what mode the lock was taken in */ + _mali_osk_lock_mode_t mode; + ); /* MALI_DEBUG_CODE */ +}; + +_mali_osk_lock_t *_mali_osk_lock_init( _mali_osk_lock_flags_t flags, u32 initial, u32 order ) +{ + _mali_osk_lock_t *lock = NULL; + + /* Validate parameters: */ + /* Flags acceptable */ + MALI_DEBUG_ASSERT( 0 == ( flags & ~(_MALI_OSK_LOCKFLAG_SPINLOCK + | _MALI_OSK_LOCKFLAG_SPINLOCK_IRQ + | _MALI_OSK_LOCKFLAG_NONINTERRUPTABLE + | _MALI_OSK_LOCKFLAG_READERWRITER + | _MALI_OSK_LOCKFLAG_ORDERED + | _MALI_OSK_LOCKFLAG_ONELOCK )) ); + /* Spinlocks are always non-interruptable */ + MALI_DEBUG_ASSERT( (((flags & _MALI_OSK_LOCKFLAG_SPINLOCK) || (flags & _MALI_OSK_LOCKFLAG_SPINLOCK_IRQ)) && (flags & _MALI_OSK_LOCKFLAG_NONINTERRUPTABLE)) + || !(flags & _MALI_OSK_LOCKFLAG_SPINLOCK)); + /* Parameter initial SBZ - for future expansion */ + MALI_DEBUG_ASSERT( 0 == initial ); + + lock = kmalloc(sizeof(_mali_osk_lock_t), GFP_KERNEL); + + if ( NULL == lock ) + { + return lock; + } + + /* Determine type of mutex: */ + /* defaults to interruptable mutex if no flags are specified */ + + if ( (flags & _MALI_OSK_LOCKFLAG_SPINLOCK) ) + { + /* Non-interruptable Spinlocks override all others */ + lock->type = _MALI_OSK_INTERNAL_LOCKTYPE_SPIN; + spin_lock_init( &lock->obj.spinlock ); + } + else if ( (flags & _MALI_OSK_LOCKFLAG_SPINLOCK_IRQ ) ) + { + lock->type = _MALI_OSK_INTERNAL_LOCKTYPE_SPIN_IRQ; + lock->flags = 0; + spin_lock_init( &lock->obj.spinlock ); + } + else if ( (flags & _MALI_OSK_LOCKFLAG_NONINTERRUPTABLE) + && (flags & _MALI_OSK_LOCKFLAG_READERWRITER) ) + { + lock->type = _MALI_OSK_INTERNAL_LOCKTYPE_MUTEX_NONINT_RW; + init_rwsem( &lock->obj.rw_sema ); + } + else + { + /* Usual mutex types */ + if ( (flags & _MALI_OSK_LOCKFLAG_NONINTERRUPTABLE) ) + { + lock->type = _MALI_OSK_INTERNAL_LOCKTYPE_MUTEX_NONINT; + } + else + { + lock->type = _MALI_OSK_INTERNAL_LOCKTYPE_MUTEX; + } + + /* Initially unlocked */ + sema_init( &lock->obj.sema, 1 ); + } + +#ifdef DEBUG + /* Debug tracking of flags */ + lock->orig_flags = flags; + + /* Debug tracking of lock owner */ + lock->owner = 0; + lock->nOwners = 0; +#endif /* DEBUG */ + + return lock; +} + +#ifdef DEBUG +u32 _mali_osk_lock_get_owner( _mali_osk_lock_t *lock ) +{ + return lock->owner; +} + +u32 _mali_osk_lock_get_number_owners( _mali_osk_lock_t *lock ) +{ + return lock->nOwners; +} + +u32 _mali_osk_lock_get_mode( _mali_osk_lock_t *lock ) +{ + return lock->mode; +} +#endif /* DEBUG */ + +_mali_osk_errcode_t _mali_osk_lock_wait( _mali_osk_lock_t *lock, _mali_osk_lock_mode_t mode) +{ + _mali_osk_errcode_t err = _MALI_OSK_ERR_OK; + + /* Parameter validation */ + MALI_DEBUG_ASSERT_POINTER( lock ); + + MALI_DEBUG_ASSERT( _MALI_OSK_LOCKMODE_RW == mode + || _MALI_OSK_LOCKMODE_RO == mode ); + + /* Only allow RO locks when the initial object was a Reader/Writer lock + * Since information is lost on the internal locktype, we use the original + * information, which is only stored when built for DEBUG */ + MALI_DEBUG_ASSERT( _MALI_OSK_LOCKMODE_RW == mode + || (_MALI_OSK_LOCKMODE_RO == mode && (_MALI_OSK_LOCKFLAG_READERWRITER & lock->orig_flags)) ); + + switch ( lock->type ) + { + case _MALI_OSK_INTERNAL_LOCKTYPE_SPIN: + spin_lock(&lock->obj.spinlock); + break; + case _MALI_OSK_INTERNAL_LOCKTYPE_SPIN_IRQ: + { + unsigned long tmp_flags; + spin_lock_irqsave(&lock->obj.spinlock, tmp_flags); + lock->flags = tmp_flags; + } + break; + + case _MALI_OSK_INTERNAL_LOCKTYPE_MUTEX: + if ( down_interruptible(&lock->obj.sema) ) + { + MALI_PRINT_ERROR(("Can not lock mutex\n")); + err = _MALI_OSK_ERR_RESTARTSYSCALL; + } + break; + + case _MALI_OSK_INTERNAL_LOCKTYPE_MUTEX_NONINT: + down(&lock->obj.sema); + break; + + case _MALI_OSK_INTERNAL_LOCKTYPE_MUTEX_NONINT_RW: + if (mode == _MALI_OSK_LOCKMODE_RO) + { + down_read(&lock->obj.rw_sema); + } + else + { + down_write(&lock->obj.rw_sema); + } + break; + + default: + /* Reaching here indicates a programming error, so you will not get here + * on non-DEBUG builds */ + MALI_DEBUG_PRINT_ERROR( ("Invalid internal lock type: %.8X", lock->type ) ); + break; + } + +#ifdef DEBUG + /* This thread is now the owner of this lock */ + if (_MALI_OSK_ERR_OK == err) + { + if (mode == _MALI_OSK_LOCKMODE_RW) + { + /*MALI_DEBUG_ASSERT(0 == lock->owner);*/ + if (0 != lock->owner) + { + printk(KERN_ERR "%d: ERROR: Lock %p already has owner %d\n", _mali_osk_get_tid(), lock, lock->owner); + dump_stack(); + } + lock->owner = _mali_osk_get_tid(); + lock->mode = mode; + ++lock->nOwners; + } + else /* mode == _MALI_OSK_LOCKMODE_RO */ + { + lock->owner |= _mali_osk_get_tid(); + lock->mode = mode; + ++lock->nOwners; + } + } +#endif + + return err; +} + +void _mali_osk_lock_signal( _mali_osk_lock_t *lock, _mali_osk_lock_mode_t mode ) +{ + /* Parameter validation */ + MALI_DEBUG_ASSERT_POINTER( lock ); + + MALI_DEBUG_ASSERT( _MALI_OSK_LOCKMODE_RW == mode + || _MALI_OSK_LOCKMODE_RO == mode ); + + /* Only allow RO locks when the initial object was a Reader/Writer lock + * Since information is lost on the internal locktype, we use the original + * information, which is only stored when built for DEBUG */ + MALI_DEBUG_ASSERT( _MALI_OSK_LOCKMODE_RW == mode + || (_MALI_OSK_LOCKMODE_RO == mode && (_MALI_OSK_LOCKFLAG_READERWRITER & lock->orig_flags)) ); + +#ifdef DEBUG + /* make sure the thread releasing the lock actually was the owner */ + if (mode == _MALI_OSK_LOCKMODE_RW) + { + /*MALI_DEBUG_ASSERT(_mali_osk_get_tid() == lock->owner);*/ + if (_mali_osk_get_tid() != lock->owner) + { + printk(KERN_ERR "%d: ERROR: Lock %p owner was %d\n", _mali_osk_get_tid(), lock, lock->owner); + dump_stack(); + } + /* This lock now has no owner */ + lock->owner = 0; + --lock->nOwners; + } + else /* mode == _MALI_OSK_LOCKMODE_RO */ + { + if ((_mali_osk_get_tid() & lock->owner) != _mali_osk_get_tid()) + { + printk(KERN_ERR "%d: ERROR: Not an owner of %p lock.\n", _mali_osk_get_tid(), lock); + dump_stack(); + } + + /* if this is the last thread holding this lock in R/O mode, set owner + * back to 0 */ + if (0 == --lock->nOwners) + { + lock->owner = 0; + } + } +#endif /* DEBUG */ + + switch ( lock->type ) + { + case _MALI_OSK_INTERNAL_LOCKTYPE_SPIN: + spin_unlock(&lock->obj.spinlock); + break; + case _MALI_OSK_INTERNAL_LOCKTYPE_SPIN_IRQ: + spin_unlock_irqrestore(&lock->obj.spinlock, lock->flags); + break; + + case _MALI_OSK_INTERNAL_LOCKTYPE_MUTEX: + /* FALLTHROUGH */ + case _MALI_OSK_INTERNAL_LOCKTYPE_MUTEX_NONINT: + up(&lock->obj.sema); + break; + + case _MALI_OSK_INTERNAL_LOCKTYPE_MUTEX_NONINT_RW: + if (mode == _MALI_OSK_LOCKMODE_RO) + { + up_read(&lock->obj.rw_sema); + } + else + { + up_write(&lock->obj.rw_sema); + } + break; + + default: + /* Reaching here indicates a programming error, so you will not get here + * on non-DEBUG builds */ + MALI_DEBUG_PRINT_ERROR( ("Invalid internal lock type: %.8X", lock->type ) ); + break; + } +} + +void _mali_osk_lock_term( _mali_osk_lock_t *lock ) +{ + /* Parameter validation */ + MALI_DEBUG_ASSERT_POINTER( lock ); + + /* Linux requires no explicit termination of spinlocks, semaphores, or rw_semaphores */ + kfree(lock); +} diff --git a/drivers/media/video/samsung/mali/linux/mali_osk_low_level_mem.c b/drivers/media/video/samsung/mali/linux/mali_osk_low_level_mem.c new file mode 100644 index 0000000..02558a0 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_osk_low_level_mem.c @@ -0,0 +1,660 @@ +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_osk_low_level_mem.c + * Implementation of the OS abstraction layer for the kernel device driver + */ + +/* needed to detect kernel version specific code */ +#include <linux/version.h> + +#include <asm/io.h> +#include <linux/ioport.h> +#include <linux/slab.h> +#include <linux/mm.h> +#include <linux/dma-mapping.h> +#include <linux/spinlock.h> +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0) +#include <linux/shrinker.h> +#endif + +#include "mali_osk.h" +#include "mali_ukk.h" /* required to hook in _mali_ukk_mem_mmap handling */ +#include "mali_kernel_common.h" +#include "mali_kernel_linux.h" + +static void mali_kernel_memory_vma_open(struct vm_area_struct * vma); +static void mali_kernel_memory_vma_close(struct vm_area_struct * vma); + + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) +static int mali_kernel_memory_cpu_page_fault_handler(struct vm_area_struct *vma, struct vm_fault *vmf); +#else +static unsigned long mali_kernel_memory_cpu_page_fault_handler(struct vm_area_struct * vma, unsigned long address); +#endif + + +typedef struct mali_vma_usage_tracker +{ + int references; + u32 cookie; +} mali_vma_usage_tracker; + + +/* Linked list structure to hold details of all OS allocations in a particular + * mapping + */ +struct AllocationList +{ + struct AllocationList *next; + u32 offset; + u32 physaddr; +}; + +typedef struct AllocationList AllocationList; + +/* Private structure to store details of a mapping region returned + * from _mali_osk_mem_mapregion_init + */ +struct MappingInfo +{ + struct vm_area_struct *vma; + struct AllocationList *list; + struct AllocationList *tail; +}; + +typedef struct MappingInfo MappingInfo; + + +static u32 _kernel_page_allocate(void); +static void _kernel_page_release(u32 physical_address); +static AllocationList * _allocation_list_item_get(void); +static void _allocation_list_item_release(AllocationList * item); + + +/* Variable declarations */ +static DEFINE_SPINLOCK(allocation_list_spinlock); +static AllocationList * pre_allocated_memory = (AllocationList*) NULL ; +static int pre_allocated_memory_size_current = 0; +#ifdef MALI_OS_MEMORY_KERNEL_BUFFER_SIZE_IN_MB + static int pre_allocated_memory_size_max = MALI_OS_MEMORY_KERNEL_BUFFER_SIZE_IN_MB * 1024 * 1024; +#else + static int pre_allocated_memory_size_max = 16 * 1024 * 1024; /* 6 MiB */ +#endif + +static struct vm_operations_struct mali_kernel_vm_ops = +{ + .open = mali_kernel_memory_vma_open, + .close = mali_kernel_memory_vma_close, +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) + .fault = mali_kernel_memory_cpu_page_fault_handler +#else + .nopfn = mali_kernel_memory_cpu_page_fault_handler +#endif +}; + +#if LINUX_VERSION_CODE < KERNEL_VERSION(3,0,0) + #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35) +static int mali_mem_shrink(int nr_to_scan, gfp_t gfp_mask) + #else +static int mali_mem_shrink(struct shrinker *shrinker, int nr_to_scan, gfp_t gfp_mask) + #endif +#else +static int mali_mem_shrink(struct shrinker *shrinker, struct shrink_control *sc) +#endif +{ + unsigned long flags; + AllocationList *item; +#if LINUX_VERSION_CODE < KERNEL_VERSION(3,0,0) + int nr = nr_to_scan; +#else + int nr = sc->nr_to_scan; +#endif + + if (0 == nr) + { + return pre_allocated_memory_size_current / PAGE_SIZE; + } + + if (0 == pre_allocated_memory_size_current) + { + /* No pages availble */ + return 0; + } + + if (0 == spin_trylock_irqsave(&allocation_list_spinlock, flags)) + { + /* Not able to lock. */ + return -1; + } + + while (pre_allocated_memory && nr > 0) + { + item = pre_allocated_memory; + pre_allocated_memory = item->next; + + _kernel_page_release(item->physaddr); + _mali_osk_free(item); + + pre_allocated_memory_size_current -= PAGE_SIZE; + --nr; + } + spin_unlock_irqrestore(&allocation_list_spinlock,flags); + + return pre_allocated_memory_size_current / PAGE_SIZE; +} + +struct shrinker mali_mem_shrinker = { + .shrink = mali_mem_shrink, + .seeks = DEFAULT_SEEKS, +}; + +void mali_osk_low_level_mem_init(void) +{ + pre_allocated_memory = (AllocationList*) NULL ; + + register_shrinker(&mali_mem_shrinker); +} + +void mali_osk_low_level_mem_term(void) +{ + unregister_shrinker(&mali_mem_shrinker); + + while ( NULL != pre_allocated_memory ) + { + AllocationList *item; + item = pre_allocated_memory; + pre_allocated_memory = item->next; + _kernel_page_release(item->physaddr); + _mali_osk_free( item ); + } + pre_allocated_memory_size_current = 0; +} + +static u32 _kernel_page_allocate(void) +{ + struct page *new_page; + u32 linux_phys_addr; + + new_page = alloc_page(GFP_HIGHUSER | __GFP_ZERO | __GFP_REPEAT | __GFP_NOWARN | __GFP_COLD); + + if ( NULL == new_page ) + { + return 0; + } + + /* Ensure page is flushed from CPU caches. */ + linux_phys_addr = dma_map_page(NULL, new_page, 0, PAGE_SIZE, DMA_BIDIRECTIONAL); + + return linux_phys_addr; +} + +static void _kernel_page_release(u32 physical_address) +{ + struct page *unmap_page; + + #if 1 + dma_unmap_page(NULL, physical_address, PAGE_SIZE, DMA_BIDIRECTIONAL); + #endif + + unmap_page = pfn_to_page( physical_address >> PAGE_SHIFT ); + MALI_DEBUG_ASSERT_POINTER( unmap_page ); + __free_page( unmap_page ); +} + +static AllocationList * _allocation_list_item_get(void) +{ + AllocationList *item = NULL; + unsigned long flags; + + spin_lock_irqsave(&allocation_list_spinlock,flags); + if ( pre_allocated_memory ) + { + item = pre_allocated_memory; + pre_allocated_memory = pre_allocated_memory->next; + pre_allocated_memory_size_current -= PAGE_SIZE; + + spin_unlock_irqrestore(&allocation_list_spinlock,flags); + return item; + } + spin_unlock_irqrestore(&allocation_list_spinlock,flags); + + item = _mali_osk_malloc( sizeof(AllocationList) ); + if ( NULL == item) + { + return NULL; + } + + item->physaddr = _kernel_page_allocate(); + if ( 0 == item->physaddr ) + { + /* Non-fatal error condition, out of memory. Upper levels will handle this. */ + _mali_osk_free( item ); + return NULL; + } + return item; +} + +static void _allocation_list_item_release(AllocationList * item) +{ + unsigned long flags; + spin_lock_irqsave(&allocation_list_spinlock,flags); + if ( pre_allocated_memory_size_current < pre_allocated_memory_size_max) + { + item->next = pre_allocated_memory; + pre_allocated_memory = item; + pre_allocated_memory_size_current += PAGE_SIZE; + spin_unlock_irqrestore(&allocation_list_spinlock,flags); + return; + } + spin_unlock_irqrestore(&allocation_list_spinlock,flags); + + _kernel_page_release(item->physaddr); + _mali_osk_free( item ); +} + + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) +static int mali_kernel_memory_cpu_page_fault_handler(struct vm_area_struct *vma, struct vm_fault *vmf) +#else +static unsigned long mali_kernel_memory_cpu_page_fault_handler(struct vm_area_struct * vma, unsigned long address) +#endif +{ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) + void __user * address; + address = vmf->virtual_address; +#endif + /* + * We always fail the call since all memory is pre-faulted when assigned to the process. + * Only the Mali cores can use page faults to extend buffers. + */ + + MALI_DEBUG_PRINT(1, ("Page-fault in Mali memory region caused by the CPU.\n")); + MALI_DEBUG_PRINT(1, ("Tried to access %p (process local virtual address) which is not currently mapped to any Mali memory.\n", (void*)address)); + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) + return VM_FAULT_SIGBUS; +#else + return NOPFN_SIGBUS; +#endif +} + +static void mali_kernel_memory_vma_open(struct vm_area_struct * vma) +{ + mali_vma_usage_tracker * vma_usage_tracker; + MALI_DEBUG_PRINT(4, ("Open called on vma %p\n", vma)); + + vma_usage_tracker = (mali_vma_usage_tracker*)vma->vm_private_data; + vma_usage_tracker->references++; + + return; +} + +static void mali_kernel_memory_vma_close(struct vm_area_struct * vma) +{ + _mali_uk_mem_munmap_s args = {0, }; + mali_memory_allocation * descriptor; + mali_vma_usage_tracker * vma_usage_tracker; + MALI_DEBUG_PRINT(3, ("Close called on vma %p\n", vma)); + + vma_usage_tracker = (mali_vma_usage_tracker*)vma->vm_private_data; + + BUG_ON(!vma_usage_tracker); + BUG_ON(0 == vma_usage_tracker->references); + + vma_usage_tracker->references--; + + if (0 != vma_usage_tracker->references) + { + MALI_DEBUG_PRINT(3, ("Ignoring this close, %d references still exists\n", vma_usage_tracker->references)); + return; + } + + /** @note args->context unused, initialized to 0. + * Instead, we use the memory_session from the cookie */ + + descriptor = (mali_memory_allocation *)vma_usage_tracker->cookie; + + args.cookie = (u32)descriptor; + args.mapping = descriptor->mapping; + args.size = descriptor->size; + + _mali_ukk_mem_munmap( &args ); + + /* vma_usage_tracker is free()d by _mali_osk_mem_mapregion_term(). + * In the case of the memory engine, it is called as the release function that has been registered with the engine*/ +} + + +void _mali_osk_mem_barrier( void ) +{ + mb(); +} + +void _mali_osk_write_mem_barrier( void ) +{ + wmb(); +} + +mali_io_address _mali_osk_mem_mapioregion( u32 phys, u32 size, const char *description ) +{ + return (mali_io_address)ioremap_nocache(phys, size); +} + +void _mali_osk_mem_unmapioregion( u32 phys, u32 size, mali_io_address virt ) +{ + iounmap((void*)virt); +} + +mali_io_address _mali_osk_mem_allocioregion( u32 *phys, u32 size ) +{ + void * virt; + MALI_DEBUG_ASSERT_POINTER( phys ); + MALI_DEBUG_ASSERT( 0 == (size & ~_MALI_OSK_CPU_PAGE_MASK) ); + MALI_DEBUG_ASSERT( 0 != size ); + + /* dma_alloc_* uses a limited region of address space. On most arch/marchs + * 2 to 14 MiB is available. This should be enough for the page tables, which + * currently is the only user of this function. */ + virt = dma_alloc_coherent(NULL, size, phys, GFP_KERNEL | GFP_DMA ); + + MALI_DEBUG_PRINT(3, ("Page table virt: 0x%x = dma_alloc_coherent(size:%d, phys:0x%x, )\n", virt, size, phys)); + + if ( NULL == virt ) + { + MALI_DEBUG_PRINT(5, ("allocioregion: Failed to allocate Pagetable memory, size=0x%.8X\n", size )); + return 0; + } + + MALI_DEBUG_ASSERT( 0 == (*phys & ~_MALI_OSK_CPU_PAGE_MASK) ); + + return (mali_io_address)virt; +} + +void _mali_osk_mem_freeioregion( u32 phys, u32 size, mali_io_address virt ) +{ + MALI_DEBUG_ASSERT_POINTER( (void*)virt ); + MALI_DEBUG_ASSERT( 0 != size ); + MALI_DEBUG_ASSERT( 0 == (phys & ( (1 << PAGE_SHIFT) - 1 )) ); + + dma_free_coherent(NULL, size, virt, phys); +} + +_mali_osk_errcode_t inline _mali_osk_mem_reqregion( u32 phys, u32 size, const char *description ) +{ + return ((NULL == request_mem_region(phys, size, description)) ? _MALI_OSK_ERR_NOMEM : _MALI_OSK_ERR_OK); +} + +void inline _mali_osk_mem_unreqregion( u32 phys, u32 size ) +{ + release_mem_region(phys, size); +} + +void inline _mali_osk_mem_iowrite32_relaxed( volatile mali_io_address addr, u32 offset, u32 val ) +{ + __raw_writel(cpu_to_le32(val),((u8*)addr) + offset); +} + +u32 inline _mali_osk_mem_ioread32( volatile mali_io_address addr, u32 offset ) +{ + return ioread32(((u8*)addr) + offset); +} + +void inline _mali_osk_mem_iowrite32( volatile mali_io_address addr, u32 offset, u32 val ) +{ + iowrite32(val, ((u8*)addr) + offset); +} + +void _mali_osk_cache_flushall( void ) +{ + /** @note Cached memory is not currently supported in this implementation */ +} + +void _mali_osk_cache_ensure_uncached_range_flushed( void *uncached_mapping, u32 offset, u32 size ) +{ + _mali_osk_write_mem_barrier(); +} + +_mali_osk_errcode_t _mali_osk_mem_mapregion_init( mali_memory_allocation * descriptor ) +{ + struct vm_area_struct *vma; + mali_vma_usage_tracker * vma_usage_tracker; + MappingInfo *mappingInfo; + + if (NULL == descriptor) return _MALI_OSK_ERR_FAULT; + + MALI_DEBUG_ASSERT( 0 != (descriptor->flags & MALI_MEMORY_ALLOCATION_FLAG_MAP_INTO_USERSPACE) ); + + vma = (struct vm_area_struct*)descriptor->process_addr_mapping_info; + + if (NULL == vma ) return _MALI_OSK_ERR_FAULT; + + /* Re-write the process_addr_mapping_info */ + mappingInfo = _mali_osk_calloc( 1, sizeof(MappingInfo) ); + + if ( NULL == mappingInfo ) return _MALI_OSK_ERR_FAULT; + + vma_usage_tracker = _mali_osk_calloc( 1, sizeof(mali_vma_usage_tracker) ); + + if (NULL == vma_usage_tracker) + { + MALI_DEBUG_PRINT(2, ("Failed to allocate memory to track memory usage\n")); + _mali_osk_free( mappingInfo ); + return _MALI_OSK_ERR_FAULT; + } + + mappingInfo->vma = vma; + descriptor->process_addr_mapping_info = mappingInfo; + + /* Do the va range allocation - in this case, it was done earlier, so we copy in that information */ + descriptor->mapping = (void __user*)vma->vm_start; + /* list member is already NULL */ + + /* + set some bits which indicate that: + The memory is IO memory, meaning that no paging is to be performed and the memory should not be included in crash dumps + The memory is reserved, meaning that it's present and can never be paged out (see also previous entry) + */ + vma->vm_flags |= VM_IO; + vma->vm_flags |= VM_RESERVED; + vma->vm_flags |= VM_DONTCOPY; + + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); + vma->vm_ops = &mali_kernel_vm_ops; /* Operations used on any memory system */ + + vma_usage_tracker->references = 1; /* set initial reference count to be 1 as vma_open won't be called for the first mmap call */ + vma_usage_tracker->cookie = (u32)descriptor; /* cookie for munmap */ + + vma->vm_private_data = vma_usage_tracker; + + return _MALI_OSK_ERR_OK; +} + +void _mali_osk_mem_mapregion_term( mali_memory_allocation * descriptor ) +{ + struct vm_area_struct* vma; + mali_vma_usage_tracker * vma_usage_tracker; + MappingInfo *mappingInfo; + + if (NULL == descriptor) return; + + MALI_DEBUG_ASSERT( 0 != (descriptor->flags & MALI_MEMORY_ALLOCATION_FLAG_MAP_INTO_USERSPACE) ); + + mappingInfo = (MappingInfo *)descriptor->process_addr_mapping_info; + + MALI_DEBUG_ASSERT_POINTER( mappingInfo ); + + /* Linux does the right thing as part of munmap to remove the mapping + * All that remains is that we remove the vma_usage_tracker setup in init() */ + vma = mappingInfo->vma; + + MALI_DEBUG_ASSERT_POINTER( vma ); + + /* ASSERT that there are no allocations on the list. Unmap should've been + * called on all OS allocations. */ + MALI_DEBUG_ASSERT( NULL == mappingInfo->list ); + + vma_usage_tracker = vma->vm_private_data; + + /* We only get called if mem_mapregion_init succeeded */ + _mali_osk_free(vma_usage_tracker); + + _mali_osk_free( mappingInfo ); + return; +} + +_mali_osk_errcode_t _mali_osk_mem_mapregion_map( mali_memory_allocation * descriptor, u32 offset, u32 *phys_addr, u32 size ) +{ + struct vm_area_struct *vma; + MappingInfo *mappingInfo; + + if (NULL == descriptor) return _MALI_OSK_ERR_FAULT; + + MALI_DEBUG_ASSERT_POINTER( phys_addr ); + + MALI_DEBUG_ASSERT( 0 != (descriptor->flags & MALI_MEMORY_ALLOCATION_FLAG_MAP_INTO_USERSPACE) ); + + MALI_DEBUG_ASSERT( 0 == (size & ~_MALI_OSK_CPU_PAGE_MASK) ); + + MALI_DEBUG_ASSERT( 0 == (offset & ~_MALI_OSK_CPU_PAGE_MASK)); + + if (NULL == descriptor->mapping) return _MALI_OSK_ERR_INVALID_ARGS; + + if (size > (descriptor->size - offset)) + { + MALI_DEBUG_PRINT(1,("_mali_osk_mem_mapregion_map: virtual memory area not large enough to map physical 0x%x size %x into area 0x%x at offset 0x%xr\n", + *phys_addr, size, descriptor->mapping, offset)); + return _MALI_OSK_ERR_FAULT; + } + + mappingInfo = (MappingInfo *)descriptor->process_addr_mapping_info; + + MALI_DEBUG_ASSERT_POINTER( mappingInfo ); + + vma = mappingInfo->vma; + + if (NULL == vma ) return _MALI_OSK_ERR_FAULT; + + MALI_DEBUG_PRINT(7, ("Process map: mapping 0x%08X to process address 0x%08lX length 0x%08X\n", *phys_addr, (long unsigned int)(descriptor->mapping + offset), size)); + + if ( MALI_MEMORY_ALLOCATION_OS_ALLOCATED_PHYSADDR_MAGIC == *phys_addr ) + { + _mali_osk_errcode_t ret; + AllocationList *alloc_item; + u32 linux_phys_frame_num; + + alloc_item = _allocation_list_item_get(); + if (NULL == alloc_item) + { + MALI_DEBUG_PRINT(1, ("Failed to allocate list item\n")); + return _MALI_OSK_ERR_NOMEM; + } + + linux_phys_frame_num = alloc_item->physaddr >> PAGE_SHIFT; + + ret = ( remap_pfn_range( vma, ((u32)descriptor->mapping) + offset, linux_phys_frame_num, size, vma->vm_page_prot) ) ? _MALI_OSK_ERR_FAULT : _MALI_OSK_ERR_OK; + + if ( ret != _MALI_OSK_ERR_OK) + { + MALI_PRINT_ERROR(("%s %d could not remap_pfn_range()\n", __FUNCTION__, __LINE__)); + _allocation_list_item_release(alloc_item); + return ret; + } + + /* Put our alloc_item into the list of allocations on success */ + if (NULL == mappingInfo->list) + { + mappingInfo->list = alloc_item; + } + else + { + mappingInfo->tail->next = alloc_item; + } + + mappingInfo->tail = alloc_item; + alloc_item->next = NULL; + alloc_item->offset = offset; + + /* Write out new physical address on success */ + *phys_addr = alloc_item->physaddr; + + return ret; + } + + /* Otherwise, Use the supplied physical address */ + + /* ASSERT that supplied phys_addr is page aligned */ + MALI_DEBUG_ASSERT( 0 == ((*phys_addr) & ~_MALI_OSK_CPU_PAGE_MASK) ); + + return ( remap_pfn_range( vma, ((u32)descriptor->mapping) + offset, *phys_addr >> PAGE_SHIFT, size, vma->vm_page_prot) ) ? _MALI_OSK_ERR_FAULT : _MALI_OSK_ERR_OK; + +} + +void _mali_osk_mem_mapregion_unmap( mali_memory_allocation * descriptor, u32 offset, u32 size, _mali_osk_mem_mapregion_flags_t flags ) +{ + MappingInfo *mappingInfo; + + if (NULL == descriptor) return; + + MALI_DEBUG_ASSERT( 0 != (descriptor->flags & MALI_MEMORY_ALLOCATION_FLAG_MAP_INTO_USERSPACE) ); + + MALI_DEBUG_ASSERT( 0 == (size & ~_MALI_OSK_CPU_PAGE_MASK) ); + + MALI_DEBUG_ASSERT( 0 == (offset & ~_MALI_OSK_CPU_PAGE_MASK) ); + + if (NULL == descriptor->mapping) return; + + if (size > (descriptor->size - offset)) + { + MALI_DEBUG_PRINT(1,("_mali_osk_mem_mapregion_unmap: virtual memory area not large enough to unmap size %x from area 0x%x at offset 0x%x\n", + size, descriptor->mapping, offset)); + return; + } + mappingInfo = (MappingInfo *)descriptor->process_addr_mapping_info; + + MALI_DEBUG_ASSERT_POINTER( mappingInfo ); + + if ( 0 != (flags & _MALI_OSK_MEM_MAPREGION_FLAG_OS_ALLOCATED_PHYSADDR) ) + { + /* This physical RAM was allocated in _mali_osk_mem_mapregion_map and + * so needs to be unmapped + */ + while (size) + { + /* First find the allocation in the list of allocations */ + AllocationList *alloc = mappingInfo->list; + AllocationList **prev = &(mappingInfo->list); + + while (NULL != alloc && alloc->offset != offset) + { + prev = &(alloc->next); + alloc = alloc->next; + } + if (alloc == NULL) { + MALI_DEBUG_PRINT(1, ("Unmapping memory that isn't mapped\n")); + size -= _MALI_OSK_CPU_PAGE_SIZE; + offset += _MALI_OSK_CPU_PAGE_SIZE; + continue; + } + + *prev = alloc->next; + _allocation_list_item_release(alloc); + + /* Move onto the next allocation */ + size -= _MALI_OSK_CPU_PAGE_SIZE; + offset += _MALI_OSK_CPU_PAGE_SIZE; + } + } + + /* Linux does the right thing as part of munmap to remove the mapping */ + + return; +} diff --git a/drivers/media/video/samsung/mali/linux/mali_osk_mali.c b/drivers/media/video/samsung/mali/linux/mali_osk_mali.c new file mode 100644 index 0000000..06cb215 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_osk_mali.c @@ -0,0 +1,34 @@ +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_osk_mali.c + * Implementation of the OS abstraction layer which is specific for the Mali kernel device driver + */ +#include <linux/kernel.h> +#include <asm/uaccess.h> +#include <mach/irqs.h> + +#include "mali_kernel_common.h" /* MALI_xxx macros */ +#include "mali_osk.h" /* kernel side OS functions */ +#include "mali_uk_types.h" +#include "arch/config.h" /* contains the configuration of the arch we are compiling for */ + +_mali_osk_errcode_t _mali_osk_resources_init( _mali_osk_resource_t **arch_config, u32 *num_resources ) +{ + *num_resources = sizeof(arch_configuration) / sizeof(arch_configuration[0]); + *arch_config = arch_configuration; + return _MALI_OSK_ERR_OK; +} + +void _mali_osk_resources_term( _mali_osk_resource_t **arch_config, u32 num_resources ) +{ + /* Nothing to do */ +} diff --git a/drivers/media/video/samsung/mali/linux/mali_osk_math.c b/drivers/media/video/samsung/mali/linux/mali_osk_math.c new file mode 100644 index 0000000..bb25e7d --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_osk_math.c @@ -0,0 +1,22 @@ +/* + * Copyright (C) 2010, 2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_osk_math.c + * Implementation of the OS abstraction layer for the kernel device driver + */ + +#include "mali_osk.h" +#include <linux/bitops.h> + +u32 inline _mali_osk_clz( u32 input ) +{ + return 32-fls(input); +} diff --git a/drivers/media/video/samsung/mali/linux/mali_osk_memory.c b/drivers/media/video/samsung/mali/linux/mali_osk_memory.c new file mode 100644 index 0000000..5354e85 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_osk_memory.c @@ -0,0 +1,61 @@ +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_osk_memory.c + * Implementation of the OS abstraction layer for the kernel device driver + */ + +#include "mali_osk.h" +#include <linux/slab.h> +#include <linux/vmalloc.h> + +void inline *_mali_osk_calloc( u32 n, u32 size ) +{ + return kcalloc(n, size, GFP_KERNEL); +} + +void inline *_mali_osk_malloc( u32 size ) +{ + return kmalloc(size, GFP_KERNEL); +} + +void inline _mali_osk_free( void *ptr ) +{ + kfree(ptr); +} + +void inline *_mali_osk_valloc( u32 size ) +{ + return vmalloc(size); +} + +void inline _mali_osk_vfree( void *ptr ) +{ + vfree(ptr); +} + +void inline *_mali_osk_memcpy( void *dst, const void *src, u32 len ) +{ + return memcpy(dst, src, len); +} + +void inline *_mali_osk_memset( void *s, u32 c, u32 n ) +{ + return memset(s, c, n); +} + +mali_bool _mali_osk_mem_check_allocated( u32 max_allocated ) +{ + /* No need to prevent an out-of-memory dialogue appearing on Linux, + * so we always return MALI_TRUE. + */ + return MALI_TRUE; +} diff --git a/drivers/media/video/samsung/mali/linux/mali_osk_misc.c b/drivers/media/video/samsung/mali/linux/mali_osk_misc.c new file mode 100644 index 0000000..ad486db --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_osk_misc.c @@ -0,0 +1,64 @@ +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_osk_misc.c + * Implementation of the OS abstraction layer for the kernel device driver + */ +#include <linux/kernel.h> +#include <asm/uaccess.h> +#include <asm/cacheflush.h> +#include <linux/sched.h> +#include <linux/module.h> +#include "mali_osk.h" + +void _mali_osk_dbgmsg( const char *fmt, ... ) +{ + va_list args; + va_start(args, fmt); + vprintk(fmt, args); + va_end(args); +} + +u32 _mali_osk_snprintf( char *buf, u32 size, const char *fmt, ... ) +{ + int res; + va_list args; + va_start(args, fmt); + + res = vscnprintf(buf, (size_t)size, fmt, args); + + va_end(args); + return res; +} + +void _mali_osk_abort(void) +{ + /* make a simple fault by dereferencing a NULL pointer */ + dump_stack(); + *(int *)0 = 0; +} + +void _mali_osk_break(void) +{ + _mali_osk_abort(); +} + +u32 _mali_osk_get_pid(void) +{ + /* Thread group ID is the process ID on Linux */ + return (u32)current->tgid; +} + +u32 _mali_osk_get_tid(void) +{ + /* pid is actually identifying the thread on Linux */ + return (u32)current->pid; +} diff --git a/drivers/media/video/samsung/mali/linux/mali_osk_notification.c b/drivers/media/video/samsung/mali/linux/mali_osk_notification.c new file mode 100644 index 0000000..c14c0d5 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_osk_notification.c @@ -0,0 +1,189 @@ +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_osk_notification.c + * Implementation of the OS abstraction layer for the kernel device driver + */ + +#include "mali_osk.h" +#include "mali_kernel_common.h" + +/* needed to detect kernel version specific code */ +#include <linux/version.h> + +#include <linux/sched.h> +#include <linux/slab.h> +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) +#include <linux/semaphore.h> +#else /* pre 2.6.26 the file was in the arch specific location */ +#include <asm/semaphore.h> +#endif + +/** + * Declaration of the notification queue object type + * Contains a linked list of notification pending delivery to user space. + * It also contains a wait queue of exclusive waiters blocked in the ioctl + * When a new notification is posted a single thread is resumed. + */ +struct _mali_osk_notification_queue_t_struct +{ + struct semaphore mutex; /**< Mutex protecting the list */ + wait_queue_head_t receive_queue; /**< Threads waiting for new entries to the queue */ + struct list_head head; /**< List of notifications waiting to be picked up */ +}; + +typedef struct _mali_osk_notification_wrapper_t_struct +{ + struct list_head list; /**< Internal linked list variable */ + _mali_osk_notification_t data; /**< Notification data */ +} _mali_osk_notification_wrapper_t; + +_mali_osk_notification_queue_t *_mali_osk_notification_queue_init( void ) +{ + _mali_osk_notification_queue_t * result; + + result = (_mali_osk_notification_queue_t *)kmalloc(sizeof(_mali_osk_notification_queue_t), GFP_KERNEL); + if (NULL == result) return NULL; + + sema_init(&result->mutex, 1); + init_waitqueue_head(&result->receive_queue); + INIT_LIST_HEAD(&result->head); + + return result; +} + +_mali_osk_notification_t *_mali_osk_notification_create( u32 type, u32 size ) +{ + /* OPT Recycling of notification objects */ + _mali_osk_notification_wrapper_t *notification; + + notification = (_mali_osk_notification_wrapper_t *)kmalloc( sizeof(_mali_osk_notification_wrapper_t) + size, + GFP_KERNEL | __GFP_HIGH | __GFP_REPEAT); + if (NULL == notification) + { + MALI_DEBUG_PRINT(1, ("Failed to create a notification object\n")); + return NULL; + } + + /* Init the list */ + INIT_LIST_HEAD(¬ification->list); + + if (0 != size) + { + notification->data.result_buffer = ((u8*)notification) + sizeof(_mali_osk_notification_wrapper_t); + } + else + { + notification->data.result_buffer = NULL; + } + + /* set up the non-allocating fields */ + notification->data.notification_type = type; + notification->data.result_buffer_size = size; + + /* all ok */ + return &(notification->data); +} + +void _mali_osk_notification_delete( _mali_osk_notification_t *object ) +{ + _mali_osk_notification_wrapper_t *notification; + MALI_DEBUG_ASSERT_POINTER( object ); + + notification = container_of( object, _mali_osk_notification_wrapper_t, data ); + + /* Free the container */ + kfree(notification); +} + +void _mali_osk_notification_queue_term( _mali_osk_notification_queue_t *queue ) +{ + MALI_DEBUG_ASSERT_POINTER( queue ); + + /* not much to do, just free the memory */ + kfree(queue); +} + +void _mali_osk_notification_queue_send( _mali_osk_notification_queue_t *queue, _mali_osk_notification_t *object ) +{ + _mali_osk_notification_wrapper_t *notification; + MALI_DEBUG_ASSERT_POINTER( queue ); + MALI_DEBUG_ASSERT_POINTER( object ); + + notification = container_of( object, _mali_osk_notification_wrapper_t, data ); + + /* lock queue access */ + down(&queue->mutex); + /* add to list */ + list_add_tail(¬ification->list, &queue->head); + /* unlock the queue */ + up(&queue->mutex); + + /* and wake up one possible exclusive waiter */ + wake_up(&queue->receive_queue); +} + +static int _mali_notification_queue_is_empty( _mali_osk_notification_queue_t *queue ) +{ + int ret; + + down(&queue->mutex); + ret = list_empty(&queue->head); + up(&queue->mutex); + return ret; +} + +#if MALI_STATE_TRACKING +mali_bool _mali_osk_notification_queue_is_empty( _mali_osk_notification_queue_t *queue ) +{ + return _mali_notification_queue_is_empty(queue) ? MALI_TRUE : MALI_FALSE; +} +#endif + +_mali_osk_errcode_t _mali_osk_notification_queue_dequeue( _mali_osk_notification_queue_t *queue, _mali_osk_notification_t **result ) +{ + _mali_osk_errcode_t ret = _MALI_OSK_ERR_ITEM_NOT_FOUND; + _mali_osk_notification_wrapper_t *wrapper_object; + + down(&queue->mutex); + + if (!list_empty(&queue->head)) + { + wrapper_object = list_entry(queue->head.next, _mali_osk_notification_wrapper_t, list); + *result = &(wrapper_object->data); + list_del_init(&wrapper_object->list); + ret = _MALI_OSK_ERR_OK; + } + + up(&queue->mutex); + + return ret; +} + +_mali_osk_errcode_t _mali_osk_notification_queue_receive( _mali_osk_notification_queue_t *queue, _mali_osk_notification_t **result ) +{ + /* check input */ + MALI_DEBUG_ASSERT_POINTER( queue ); + MALI_DEBUG_ASSERT_POINTER( result ); + + /* default result */ + *result = NULL; + + while (_MALI_OSK_ERR_OK != _mali_osk_notification_queue_dequeue(queue, result)) + { + if (wait_event_interruptible(queue->receive_queue, !_mali_notification_queue_is_empty(queue))) + { + return _MALI_OSK_ERR_RESTARTSYSCALL; + } + } + + return _MALI_OSK_ERR_OK; /* all ok */ +} diff --git a/drivers/media/video/samsung/mali/linux/mali_osk_pm.c b/drivers/media/video/samsung/mali/linux/mali_osk_pm.c new file mode 100644 index 0000000..491a603 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_osk_pm.c @@ -0,0 +1,83 @@ +/** + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_osk_pm.c + * Implementation of the callback functions from common power management + */ + +#include <linux/sched.h> + +#ifdef CONFIG_PM_RUNTIME +#include <linux/pm_runtime.h> +#endif /* CONFIG_PM_RUNTIME */ +#include <linux/platform_device.h> +#include "mali_platform.h" +#include "mali_osk.h" +#include "mali_uk_types.h" +#include "mali_kernel_common.h" +#include "mali_kernel_license.h" +#include "mali_linux_pm.h" +#include "mali_kernel_license.h" + +#if ! MALI_LICENSE_IS_GPL +#undef CONFIG_PM_RUNTIME +#endif + +extern struct platform_device mali_gpu_device; + +#ifdef CONFIG_PM_RUNTIME +static mali_bool have_runtime_reference = MALI_FALSE; +#endif + +void _mali_osk_pm_dev_enable(void) +{ +#ifdef CONFIG_PM_RUNTIME + pm_runtime_enable(&(mali_gpu_device.dev)); +#endif +} + +/* NB: Function is not thread safe */ +_mali_osk_errcode_t _mali_osk_pm_dev_idle(void) +{ +#ifdef CONFIG_PM_RUNTIME + if (MALI_TRUE == have_runtime_reference) + { + int err; + err = pm_runtime_put_sync(&(mali_gpu_device.dev)); + if (0 > err) + { + MALI_PRINT_ERROR(("OSK PM: pm_runtime_put_sync() returned error code %d\n", err)); + return _MALI_OSK_ERR_FAULT; + } + have_runtime_reference = MALI_FALSE; + } +#endif + return _MALI_OSK_ERR_OK; +} + +/* NB: Function is not thread safe */ +_mali_osk_errcode_t _mali_osk_pm_dev_activate(void) +{ +#ifdef CONFIG_PM_RUNTIME + if (MALI_TRUE != have_runtime_reference) + { + int err; + err = pm_runtime_get_sync(&(mali_gpu_device.dev)); + if (0 > err) + { + MALI_PRINT_ERROR(("OSK PM: pm_runtime_get_sync() returned error code %d\n", err)); + return _MALI_OSK_ERR_FAULT; + } + have_runtime_reference = MALI_TRUE; + } +#endif + return _MALI_OSK_ERR_OK; +} diff --git a/drivers/media/video/samsung/mali/linux/mali_osk_profiling_gator.c b/drivers/media/video/samsung/mali/linux/mali_osk_profiling_gator.c new file mode 100644 index 0000000..95bee53 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_osk_profiling_gator.c @@ -0,0 +1,261 @@ +/* + * Copyright (C) 2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include <linux/module.h> + +#include "mali_kernel_common.h" +#include "mali_osk.h" +#include "mali_ukk.h" +#include "mali_uk_types.h" +#include "mali_osk_profiling.h" +#include "mali_linux_trace.h" +#include "mali_gp.h" +#include "mali_pp.h" +#include "mali_l2_cache.h" +#include "mali_user_settings_db.h" + +_mali_osk_errcode_t _mali_osk_profiling_init(mali_bool auto_start) +{ + if (MALI_TRUE == auto_start) + { + mali_set_user_setting(_MALI_UK_USER_SETTING_SW_EVENTS_ENABLE, MALI_TRUE); + } + + return _MALI_OSK_ERR_OK; +} + +void _mali_osk_profiling_term(void) +{ + /* Nothing to do */ +} + +_mali_osk_errcode_t _mali_osk_profiling_start(u32 * limit) +{ + /* Nothing to do */ + return _MALI_OSK_ERR_OK; +} + +_mali_osk_errcode_t _mali_osk_profiling_stop(u32 *count) +{ + /* Nothing to do */ + return _MALI_OSK_ERR_OK; +} + +u32 _mali_osk_profiling_get_count(void) +{ + return 0; +} + +_mali_osk_errcode_t _mali_osk_profiling_get_event(u32 index, u64* timestamp, u32* event_id, u32 data[5]) +{ + /* Nothing to do */ + return _MALI_OSK_ERR_OK; +} + +_mali_osk_errcode_t _mali_osk_profiling_clear(void) +{ + /* Nothing to do */ + return _MALI_OSK_ERR_OK; +} + +mali_bool _mali_osk_profiling_is_recording(void) +{ + return MALI_FALSE; +} + +mali_bool _mali_osk_profiling_have_recording(void) +{ + return MALI_FALSE; +} + +void _mali_osk_profiling_report_sw_counters(u32 *counters) +{ + trace_mali_sw_counters(_mali_osk_get_pid(), _mali_osk_get_tid(), NULL, counters); +} + + +_mali_osk_errcode_t _mali_ukk_profiling_start(_mali_uk_profiling_start_s *args) +{ + return _mali_osk_profiling_start(&args->limit); +} + +_mali_osk_errcode_t _mali_ukk_profiling_add_event(_mali_uk_profiling_add_event_s *args) +{ + /* Always add process and thread identificator in the first two data elements for events from user space */ + _mali_osk_profiling_add_event(args->event_id, _mali_osk_get_pid(), _mali_osk_get_tid(), args->data[2], args->data[3], args->data[4]); + + return _MALI_OSK_ERR_OK; +} + +_mali_osk_errcode_t _mali_ukk_profiling_stop(_mali_uk_profiling_stop_s *args) +{ + return _mali_osk_profiling_stop(&args->count); +} + +_mali_osk_errcode_t _mali_ukk_profiling_get_event(_mali_uk_profiling_get_event_s *args) +{ + return _mali_osk_profiling_get_event(args->index, &args->timestamp, &args->event_id, args->data); +} + +_mali_osk_errcode_t _mali_ukk_profiling_clear(_mali_uk_profiling_clear_s *args) +{ + return _mali_osk_profiling_clear(); +} + +_mali_osk_errcode_t _mali_ukk_sw_counters_report(_mali_uk_sw_counters_report_s *args) +{ + _mali_osk_profiling_report_sw_counters(args->counters); + return _MALI_OSK_ERR_OK; +} + +/** + * Called by gator.ko to set HW counters + * + * @param counter_id The counter ID. + * @param event_id Event ID that the counter should count (HW counter value from TRM). + * + * @return 1 on success, 0 on failure. + */ +int _mali_profiling_set_event(u32 counter_id, s32 event_id) +{ + + if (COUNTER_VP_C0 == counter_id) + { + struct mali_gp_core* gp_core = mali_gp_get_global_gp_core(); + if (NULL != gp_core) + { + if (MALI_TRUE == mali_gp_core_set_counter_src0(gp_core, event_id)) + { + return 1; + } + } + } + if (COUNTER_VP_C1 == counter_id) + { + struct mali_gp_core* gp_core = mali_gp_get_global_gp_core(); + if (NULL != gp_core) + { + if (MALI_TRUE == mali_gp_core_set_counter_src1(gp_core, event_id)) + { + return 1; + } + } + } + if (COUNTER_FP0_C0 <= counter_id && COUNTER_FP3_C1 >= counter_id) + { + u32 core_id = (counter_id - COUNTER_FP0_C0) >> 1; + struct mali_pp_core* pp_core = mali_pp_get_global_pp_core(core_id); + if (NULL != pp_core) + { + u32 counter_src = (counter_id - COUNTER_FP0_C0) & 1; + if (0 == counter_src) + { + if (MALI_TRUE == mali_pp_core_set_counter_src0(pp_core, event_id)) + { + return 1; + } + } + else + { + if (MALI_TRUE == mali_pp_core_set_counter_src1(pp_core, event_id)) + { + return 1; + } + } + } + } + if (COUNTER_L2_C0 <= counter_id && COUNTER_L2_C1 >= counter_id) + { + u32 core_id = (counter_id - COUNTER_L2_C0) >> 1; + struct mali_l2_cache_core* l2_cache_core = mali_l2_cache_core_get_glob_l2_core(core_id); + if (NULL != l2_cache_core) + { + u32 counter_src = (counter_id - COUNTER_L2_C0) & 1; + if (0 == counter_src) + { + if (MALI_TRUE == mali_l2_cache_core_set_counter_src0(l2_cache_core, event_id)) + { + return 1; + } + } + else + { + if (MALI_TRUE == mali_l2_cache_core_set_counter_src1(l2_cache_core, event_id)) + { + return 1; + } + } + } + } + + return 0; +} + +/** + * Called by gator.ko to retrieve the L2 cache counter values for the first L2 cache. + * The L2 cache counters are unique in that they are polled by gator, rather than being + * transmitted via the tracepoint mechanism. + * + * @param src0 First L2 cache counter ID. + * @param val0 First L2 cache counter value. + * @param src1 Second L2 cache counter ID. + * @param val1 Second L2 cache counter value. + */ +void _mali_profiling_get_counters(u32 *src0, u32 *val0, u32 *src1, u32 *val1) +{ + struct mali_l2_cache_core *l2_cache = mali_l2_cache_core_get_glob_l2_core(0); + if (NULL != l2_cache) + { + if (MALI_TRUE == mali_l2_cache_lock_power_state(l2_cache)) + { + /* It is now safe to access the L2 cache core in order to retrieve the counters */ + mali_l2_cache_core_get_counter_values(l2_cache, src0, val0, src1, val1); + } + mali_l2_cache_unlock_power_state(l2_cache); + } +} + +/* + * List of possible actions to be controlled by Streamline. + * The following numbers are used by gator to control the frame buffer dumping and s/w counter reporting. + * We cannot use the enums in mali_uk_types.h because they are unknown inside gator. + */ +#define FBDUMP_CONTROL_ENABLE (1) +#define FBDUMP_CONTROL_RATE (2) +#define SW_COUNTER_ENABLE (3) +#define FBDUMP_CONTROL_RESIZE_FACTOR (4) + +/** + * Called by gator to control the production of profiling information at runtime. + */ +void _mali_profiling_control(u32 action, u32 value) +{ + switch(action) + { + case FBDUMP_CONTROL_ENABLE: + mali_set_user_setting(_MALI_UK_USER_SETTING_COLORBUFFER_CAPTURE_ENABLED, (value == 0 ? MALI_FALSE : MALI_TRUE)); + break; + case FBDUMP_CONTROL_RATE: + mali_set_user_setting(_MALI_UK_USER_SETTING_BUFFER_CAPTURE_N_FRAMES, value); + break; + case SW_COUNTER_ENABLE: + mali_set_user_setting(_MALI_UK_USER_SETTING_SW_COUNTER_ENABLED, value); + break; + case FBDUMP_CONTROL_RESIZE_FACTOR: + mali_set_user_setting(_MALI_UK_USER_SETTING_BUFFER_CAPTURE_RESIZE_FACTOR, value); + break; + default: + break; /* Ignore unimplemented actions */ + } +} + +EXPORT_SYMBOL(_mali_profiling_set_event); +EXPORT_SYMBOL(_mali_profiling_get_counters); +EXPORT_SYMBOL(_mali_profiling_control); diff --git a/drivers/media/video/samsung/mali/linux/mali_osk_profiling_internal.c b/drivers/media/video/samsung/mali/linux/mali_osk_profiling_internal.c new file mode 100644 index 0000000..2df935d --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_osk_profiling_internal.c @@ -0,0 +1,324 @@ +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "mali_kernel_common.h" +#include "mali_osk.h" +#include "mali_osk_mali.h" +#include "mali_ukk.h" +#include "mali_timestamp.h" +#include "mali_osk_profiling.h" +#include "mali_user_settings_db.h" + +typedef struct mali_profiling_entry +{ + u64 timestamp; + u32 event_id; + u32 data[5]; +} mali_profiling_entry; + + +typedef enum mali_profiling_state +{ + MALI_PROFILING_STATE_UNINITIALIZED, + MALI_PROFILING_STATE_IDLE, + MALI_PROFILING_STATE_RUNNING, + MALI_PROFILING_STATE_RETURN, +} mali_profiling_state; + +static _mali_osk_lock_t *lock = NULL; +static mali_profiling_state prof_state = MALI_PROFILING_STATE_UNINITIALIZED; +static mali_profiling_entry* profile_entries = NULL; +static u32 profile_entry_count = 0; +static _mali_osk_atomic_t profile_insert_index; +static _mali_osk_atomic_t profile_entries_written; + +_mali_osk_errcode_t _mali_osk_profiling_init(mali_bool auto_start) +{ + profile_entries = NULL; + profile_entry_count = 0; + _mali_osk_atomic_init(&profile_insert_index, 0); + _mali_osk_atomic_init(&profile_entries_written, 0); + + lock = _mali_osk_lock_init(_MALI_OSK_LOCKFLAG_ORDERED | _MALI_OSK_LOCKFLAG_SPINLOCK | _MALI_OSK_LOCKFLAG_NONINTERRUPTABLE, 0, _MALI_OSK_LOCK_ORDER_PROFILING); + if (NULL == lock) + { + return _MALI_OSK_ERR_FAULT; + } + + prof_state = MALI_PROFILING_STATE_IDLE; + + if (MALI_TRUE == auto_start) + { + u32 limit = MALI_PROFILING_MAX_BUFFER_ENTRIES; /* Use maximum buffer size */ + + mali_set_user_setting(_MALI_UK_USER_SETTING_SW_EVENTS_ENABLE, MALI_TRUE); + if (_MALI_OSK_ERR_OK != _mali_osk_profiling_start(&limit)) + { + return _MALI_OSK_ERR_FAULT; + } + } + + return _MALI_OSK_ERR_OK; +} + +void _mali_osk_profiling_term(void) +{ + prof_state = MALI_PROFILING_STATE_UNINITIALIZED; + + /* wait for all elements to be completely inserted into array */ + while (_mali_osk_atomic_read(&profile_insert_index) != _mali_osk_atomic_read(&profile_entries_written)) + { + /* do nothing */; + } + + if (NULL != profile_entries) + { + _mali_osk_vfree(profile_entries); + profile_entries = NULL; + } + + if (NULL != lock) + { + _mali_osk_lock_term(lock); + lock = NULL; + } +} + +inline _mali_osk_errcode_t _mali_osk_profiling_start(u32 * limit) +{ + _mali_osk_errcode_t ret; + + mali_profiling_entry *new_profile_entries = _mali_osk_valloc(*limit * sizeof(mali_profiling_entry)); + + if(NULL == new_profile_entries) + { + return _MALI_OSK_ERR_NOMEM; + } + + _mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW); + + if (prof_state != MALI_PROFILING_STATE_IDLE) + { + _mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW); + _mali_osk_vfree(new_profile_entries); + return _MALI_OSK_ERR_INVALID_ARGS; /* invalid to call this function in this state */ + } + + if (*limit > MALI_PROFILING_MAX_BUFFER_ENTRIES) + { + *limit = MALI_PROFILING_MAX_BUFFER_ENTRIES; + } + + profile_entries = new_profile_entries; + profile_entry_count = *limit; + + ret = _mali_timestamp_reset(); + + if (ret == _MALI_OSK_ERR_OK) + { + prof_state = MALI_PROFILING_STATE_RUNNING; + } + else + { + _mali_osk_vfree(profile_entries); + profile_entries = NULL; + } + + _mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW); + return ret; +} + +inline void _mali_osk_profiling_add_event(u32 event_id, u32 data0, u32 data1, u32 data2, u32 data3, u32 data4) +{ + if (prof_state == MALI_PROFILING_STATE_RUNNING) + { + u32 cur_index = (_mali_osk_atomic_inc_return(&profile_insert_index) - 1) % profile_entry_count; + + profile_entries[cur_index].timestamp = _mali_timestamp_get(); + profile_entries[cur_index].event_id = event_id; + profile_entries[cur_index].data[0] = data0; + profile_entries[cur_index].data[1] = data1; + profile_entries[cur_index].data[2] = data2; + profile_entries[cur_index].data[3] = data3; + profile_entries[cur_index].data[4] = data4; + + /* If event is "leave API function", add current memory usage to the event + * as data point 4. This is used in timeline profiling to indicate how + * much memory was used when leaving a function. */ + if (event_id == (MALI_PROFILING_EVENT_TYPE_SINGLE|MALI_PROFILING_EVENT_CHANNEL_SOFTWARE|MALI_PROFILING_EVENT_REASON_SINGLE_SW_LEAVE_API_FUNC)) + { + profile_entries[cur_index].data[4] = _mali_ukk_report_memory_usage(); + } + + _mali_osk_atomic_inc(&profile_entries_written); + } +} + +inline void _mali_osk_profiling_report_hw_counter(u32 counter_id, u32 value) +{ + /* Not implemented */ +} + +void _mali_osk_profiling_report_sw_counters(u32 *counters) +{ + /* Not implemented */ +} + +inline _mali_osk_errcode_t _mali_osk_profiling_stop(u32 * count) +{ + _mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW); + + if (prof_state != MALI_PROFILING_STATE_RUNNING) + { + _mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW); + return _MALI_OSK_ERR_INVALID_ARGS; /* invalid to call this function in this state */ + } + + /* go into return state (user to retreive events), no more events will be added after this */ + prof_state = MALI_PROFILING_STATE_RETURN; + + _mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW); + + /* wait for all elements to be completely inserted into array */ + while (_mali_osk_atomic_read(&profile_insert_index) != _mali_osk_atomic_read(&profile_entries_written)) + { + /* do nothing */; + } + + *count = _mali_osk_atomic_read(&profile_insert_index); + if(*count>profile_entry_count) *count=profile_entry_count; + + return _MALI_OSK_ERR_OK; +} + +inline u32 _mali_osk_profiling_get_count(void) +{ + u32 retval = 0; + + _mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW); + if (prof_state == MALI_PROFILING_STATE_RETURN) + { + retval = _mali_osk_atomic_read(&profile_entries_written); + if(retval>profile_entry_count) retval = profile_entry_count; + } + _mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW); + + return retval; +} + +inline _mali_osk_errcode_t _mali_osk_profiling_get_event(u32 index, u64* timestamp, u32* event_id, u32 data[5]) +{ + _mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW); + + if(index<profile_entry_count) + { + u32 idx = index; + if(_mali_osk_atomic_read(&profile_insert_index)>=profile_entry_count) + { + idx = (index + _mali_osk_atomic_read(&profile_insert_index)) % profile_entry_count; + } + + if (prof_state != MALI_PROFILING_STATE_RETURN) + { + _mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW); + return _MALI_OSK_ERR_INVALID_ARGS; /* invalid to call this function in this state */ + } + + if (idx >= _mali_osk_atomic_read(&profile_entries_written)) + { + _mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW); + return _MALI_OSK_ERR_FAULT; + } + + *timestamp = profile_entries[idx].timestamp; + *event_id = profile_entries[idx].event_id; + data[0] = profile_entries[idx].data[0]; + data[1] = profile_entries[idx].data[1]; + data[2] = profile_entries[idx].data[2]; + data[3] = profile_entries[idx].data[3]; + data[4] = profile_entries[idx].data[4]; + } + else + { + _mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW); + return _MALI_OSK_ERR_FAULT; + } + + _mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW); + return _MALI_OSK_ERR_OK; +} + +inline _mali_osk_errcode_t _mali_osk_profiling_clear(void) +{ + _mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW); + + if (prof_state != MALI_PROFILING_STATE_RETURN) + { + _mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW); + return _MALI_OSK_ERR_INVALID_ARGS; /* invalid to call this function in this state */ + } + + prof_state = MALI_PROFILING_STATE_IDLE; + profile_entry_count = 0; + _mali_osk_atomic_init(&profile_insert_index, 0); + _mali_osk_atomic_init(&profile_entries_written, 0); + if (NULL != profile_entries) + { + _mali_osk_vfree(profile_entries); + profile_entries = NULL; + } + + _mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW); + return _MALI_OSK_ERR_OK; +} + +mali_bool _mali_osk_profiling_is_recording(void) +{ + return prof_state == MALI_PROFILING_STATE_RUNNING ? MALI_TRUE : MALI_FALSE; +} + +mali_bool _mali_osk_profiling_have_recording(void) +{ + return prof_state == MALI_PROFILING_STATE_RETURN ? MALI_TRUE : MALI_FALSE; +} + +_mali_osk_errcode_t _mali_ukk_profiling_start(_mali_uk_profiling_start_s *args) +{ + return _mali_osk_profiling_start(&args->limit); +} + +_mali_osk_errcode_t _mali_ukk_profiling_add_event(_mali_uk_profiling_add_event_s *args) +{ + /* Always add process and thread identificator in the first two data elements for events from user space */ + _mali_osk_profiling_add_event(args->event_id, _mali_osk_get_pid(), _mali_osk_get_tid(), args->data[2], args->data[3], args->data[4]); + return _MALI_OSK_ERR_OK; +} + +_mali_osk_errcode_t _mali_ukk_profiling_stop(_mali_uk_profiling_stop_s *args) +{ + return _mali_osk_profiling_stop(&args->count); +} + +_mali_osk_errcode_t _mali_ukk_profiling_get_event(_mali_uk_profiling_get_event_s *args) +{ + return _mali_osk_profiling_get_event(args->index, &args->timestamp, &args->event_id, args->data); +} + +_mali_osk_errcode_t _mali_ukk_profiling_clear(_mali_uk_profiling_clear_s *args) +{ + return _mali_osk_profiling_clear(); +} + +_mali_osk_errcode_t _mali_ukk_sw_counters_report(_mali_uk_sw_counters_report_s *args) +{ + _mali_osk_profiling_report_sw_counters(args->counters); + return _MALI_OSK_ERR_OK; +} + diff --git a/drivers/media/video/samsung/mali/linux/mali_osk_specific.h b/drivers/media/video/samsung/mali/linux/mali_osk_specific.h new file mode 100644 index 0000000..83ee906 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_osk_specific.h @@ -0,0 +1,130 @@ +/* + * Copyright (C) 2010, 2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_osk_specific.h + * Defines per-OS Kernel level specifics, such as unusual workarounds for + * certain OSs. + */ + +#ifndef __MALI_OSK_SPECIFIC_H__ +#define __MALI_OSK_SPECIFIC_H__ + +#ifdef __cplusplus +extern "C" +{ +#endif + +#define MALI_STATIC_INLINE static inline +#define MALI_NON_STATIC_INLINE inline + +#ifdef __cplusplus +} +#endif + +/** The list of events supported by the Mali DDK. */ +typedef enum +{ + /* Vertex processor activity */ + ACTIVITY_VP = 0, + + /* Fragment processor activity */ + ACTIVITY_FP0, + ACTIVITY_FP1, + ACTIVITY_FP2, + ACTIVITY_FP3, + + /* L2 cache counters */ + COUNTER_L2_C0, + COUNTER_L2_C1, + + /* Vertex processor counters */ + COUNTER_VP_C0, + COUNTER_VP_C1, + + /* Fragment processor counters */ + COUNTER_FP0_C0, + COUNTER_FP0_C1, + COUNTER_FP1_C0, + COUNTER_FP1_C1, + COUNTER_FP2_C0, + COUNTER_FP2_C1, + COUNTER_FP3_C0, + COUNTER_FP3_C1, + + /* + * If more hardware counters are added, the _mali_osk_hw_counter_table + * below should also be updated. + */ + + /* EGL software counters */ + COUNTER_EGL_BLIT_TIME, + + /* GLES software counters */ + COUNTER_GLES_DRAW_ELEMENTS_CALLS, + COUNTER_GLES_DRAW_ELEMENTS_NUM_INDICES, + COUNTER_GLES_DRAW_ELEMENTS_NUM_TRANSFORMED, + COUNTER_GLES_DRAW_ARRAYS_CALLS, + COUNTER_GLES_DRAW_ARRAYS_NUM_TRANSFORMED, + COUNTER_GLES_DRAW_POINTS, + COUNTER_GLES_DRAW_LINES, + COUNTER_GLES_DRAW_LINE_LOOP, + COUNTER_GLES_DRAW_LINE_STRIP, + COUNTER_GLES_DRAW_TRIANGLES, + COUNTER_GLES_DRAW_TRIANGLE_STRIP, + COUNTER_GLES_DRAW_TRIANGLE_FAN, + COUNTER_GLES_NON_VBO_DATA_COPY_TIME, + COUNTER_GLES_UNIFORM_BYTES_COPIED_TO_MALI, + COUNTER_GLES_UPLOAD_TEXTURE_TIME, + COUNTER_GLES_UPLOAD_VBO_TIME, + COUNTER_GLES_NUM_FLUSHES, + COUNTER_GLES_NUM_VSHADERS_GENERATED, + COUNTER_GLES_NUM_FSHADERS_GENERATED, + COUNTER_GLES_VSHADER_GEN_TIME, + COUNTER_GLES_FSHADER_GEN_TIME, + COUNTER_GLES_INPUT_TRIANGLES, + COUNTER_GLES_VXCACHE_HIT, + COUNTER_GLES_VXCACHE_MISS, + COUNTER_GLES_VXCACHE_COLLISION, + COUNTER_GLES_CULLED_TRIANGLES, + COUNTER_GLES_CULLED_LINES, + COUNTER_GLES_BACKFACE_TRIANGLES, + COUNTER_GLES_GBCLIP_TRIANGLES, + COUNTER_GLES_GBCLIP_LINES, + COUNTER_GLES_TRIANGLES_DRAWN, + COUNTER_GLES_DRAWCALL_TIME, + COUNTER_GLES_TRIANGLES_COUNT, + COUNTER_GLES_INDEPENDENT_TRIANGLES_COUNT, + COUNTER_GLES_STRIP_TRIANGLES_COUNT, + COUNTER_GLES_FAN_TRIANGLES_COUNT, + COUNTER_GLES_LINES_COUNT, + COUNTER_GLES_INDEPENDENT_LINES_COUNT, + COUNTER_GLES_STRIP_LINES_COUNT, + COUNTER_GLES_LOOP_LINES_COUNT, + + /* Framebuffer capture pseudo-counter */ + COUNTER_FILMSTRIP, + + NUMBER_OF_EVENTS +} _mali_osk_counter_id; + +#define FIRST_ACTIVITY_EVENT ACTIVITY_VP +#define LAST_ACTIVITY_EVENT ACTIVITY_FP3 + +#define FIRST_HW_COUNTER COUNTER_L2_C0 +#define LAST_HW_COUNTER COUNTER_FP3_C1 + +#define FIRST_SW_COUNTER COUNTER_EGL_BLIT_TIME +#define LAST_SW_COUNTER COUNTER_GLES_LOOP_LINES_COUNT + +#define FIRST_SPECIAL_COUNTER COUNTER_FILMSTRIP +#define LAST_SPECIAL_COUNTER COUNTER_FILMSTRIP + +#endif /* __MALI_OSK_SPECIFIC_H__ */ diff --git a/drivers/media/video/samsung/mali/linux/mali_osk_time.c b/drivers/media/video/samsung/mali/linux/mali_osk_time.c new file mode 100644 index 0000000..b399b87 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_osk_time.c @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2010, 2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_osk_time.c + * Implementation of the OS abstraction layer for the kernel device driver + */ + +#include "mali_osk.h" +#include <linux/jiffies.h> +#include <linux/time.h> +#include <asm/delay.h> + +int _mali_osk_time_after( u32 ticka, u32 tickb ) +{ + return time_after((unsigned long)ticka, (unsigned long)tickb); +} + +u32 _mali_osk_time_mstoticks( u32 ms ) +{ + return msecs_to_jiffies(ms); +} + +u32 _mali_osk_time_tickstoms( u32 ticks ) +{ + return jiffies_to_msecs(ticks); +} + +u32 _mali_osk_time_tickcount( void ) +{ + return jiffies; +} + +void _mali_osk_time_ubusydelay( u32 usecs ) +{ + udelay(usecs); +} + +u64 _mali_osk_time_get_ns( void ) +{ + struct timespec tsval; + getnstimeofday(&tsval); + return (u64)timespec_to_ns(&tsval); +} diff --git a/drivers/media/video/samsung/mali/linux/mali_osk_timers.c b/drivers/media/video/samsung/mali/linux/mali_osk_timers.c new file mode 100644 index 0000000..e5829a3 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_osk_timers.c @@ -0,0 +1,65 @@ +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_osk_timers.c + * Implementation of the OS abstraction layer for the kernel device driver + */ + +#include <linux/timer.h> +#include <linux/slab.h> +#include "mali_osk.h" +#include "mali_kernel_common.h" + +struct _mali_osk_timer_t_struct +{ + struct timer_list timer; +}; + +typedef void (*timer_timeout_function_t)(unsigned long); + +_mali_osk_timer_t *_mali_osk_timer_init(void) +{ + _mali_osk_timer_t *t = (_mali_osk_timer_t*)kmalloc(sizeof(_mali_osk_timer_t), GFP_KERNEL); + if (NULL != t) init_timer(&t->timer); + return t; +} + +void _mali_osk_timer_add( _mali_osk_timer_t *tim, u32 ticks_to_expire ) +{ + MALI_DEBUG_ASSERT_POINTER(tim); + tim->timer.expires = _mali_osk_time_tickcount() + ticks_to_expire; + add_timer(&(tim->timer)); +} + +void _mali_osk_timer_mod( _mali_osk_timer_t *tim, u32 expiry_tick) +{ + MALI_DEBUG_ASSERT_POINTER(tim); + mod_timer(&(tim->timer), expiry_tick); +} + +void _mali_osk_timer_del( _mali_osk_timer_t *tim ) +{ + MALI_DEBUG_ASSERT_POINTER(tim); + del_timer_sync(&(tim->timer)); +} + +void _mali_osk_timer_setcallback( _mali_osk_timer_t *tim, _mali_osk_timer_callback_t callback, void *data ) +{ + MALI_DEBUG_ASSERT_POINTER(tim); + tim->timer.data = (unsigned long)data; + tim->timer.function = (timer_timeout_function_t)callback; +} + +void _mali_osk_timer_term( _mali_osk_timer_t *tim ) +{ + MALI_DEBUG_ASSERT_POINTER(tim); + kfree(tim); +} diff --git a/drivers/media/video/samsung/mali/linux/mali_osk_wait_queue.c b/drivers/media/video/samsung/mali/linux/mali_osk_wait_queue.c new file mode 100644 index 0000000..ce0561d --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_osk_wait_queue.c @@ -0,0 +1,73 @@ +/* + * Copyright (C) 2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_osk_wait_queue.c + * Implemenation of the OS abstraction layer for the kernel device driver + */ + +#include <linux/wait.h> +#include <linux/slab.h> +#include <linux/sched.h> + +#include "mali_osk.h" +#include "mali_kernel_common.h" + +struct _mali_osk_wait_queue_t_struct +{ + wait_queue_head_t wait_queue; +}; + +_mali_osk_wait_queue_t* _mali_osk_wait_queue_init( void ) +{ + _mali_osk_wait_queue_t* ret = NULL; + + ret = kmalloc(sizeof(_mali_osk_wait_queue_t), GFP_KERNEL); + + if (NULL == ret) + { + return ret; + } + + init_waitqueue_head(&ret->wait_queue); + MALI_DEBUG_ASSERT(!waitqueue_active(&ret->wait_queue)); + + return ret; +} + +void _mali_osk_wait_queue_wait_event( _mali_osk_wait_queue_t *queue, mali_bool (*condition)(void) ) +{ + MALI_DEBUG_ASSERT_POINTER( queue ); + MALI_DEBUG_PRINT(6, ("Adding to wait queue %p\n", queue)); + wait_event(queue->wait_queue, condition()); +} + +void _mali_osk_wait_queue_wake_up( _mali_osk_wait_queue_t *queue ) +{ + MALI_DEBUG_ASSERT_POINTER( queue ); + + /* if queue is empty, don't attempt to wake up its elements */ + if (!waitqueue_active(&queue->wait_queue)) return; + + MALI_DEBUG_PRINT(6, ("Waking up elements in wait queue %p ....\n", queue)); + + wake_up_all(&queue->wait_queue); + + MALI_DEBUG_PRINT(6, ("... elements in wait queue %p woken up\n", queue)); +} + +void _mali_osk_wait_queue_term( _mali_osk_wait_queue_t *queue ) +{ + /* Parameter validation */ + MALI_DEBUG_ASSERT_POINTER( queue ); + + /* Linux requires no explicit termination of wait queues */ + kfree(queue); +} diff --git a/drivers/media/video/samsung/mali/linux/mali_pmu_power_up_down.c b/drivers/media/video/samsung/mali/linux/mali_pmu_power_up_down.c new file mode 100644 index 0000000..f3b0a2c --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_pmu_power_up_down.c @@ -0,0 +1,65 @@ +/** + * Copyright (C) 2010, 2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_pmu_power_up_down.c + */ + +#include <linux/version.h> +#include <linux/sched.h> +#include <linux/module.h> +#include "mali_osk.h" +#include "mali_kernel_common.h" +#include "mali_pmu.h" +#include "linux/mali/mali_utgard.h" + +/* Mali PMU power up/down APIs */ + +int mali_pmu_powerup(void) +{ + struct mali_pmu_core *pmu = mali_pmu_get_global_pmu_core(); + + MALI_DEBUG_PRINT(5, ("Mali PMU: Power up\n")); + + if (NULL == pmu) + { + return -ENXIO; + } + + if (_MALI_OSK_ERR_OK != mali_pmu_powerup_all(pmu)) + { + return -EFAULT; + } + + return 0; +} + +EXPORT_SYMBOL(mali_pmu_powerup); + +int mali_pmu_powerdown(void) +{ + struct mali_pmu_core *pmu = mali_pmu_get_global_pmu_core(); + + MALI_DEBUG_PRINT(5, ("Mali PMU: Power down\n")); + + if (NULL == pmu) + { + return -ENXIO; + } + + if (_MALI_OSK_ERR_OK != mali_pmu_powerdown_all(pmu)) + { + return -EFAULT; + } + + return 0; +} + +EXPORT_SYMBOL(mali_pmu_powerdown); diff --git a/drivers/media/video/samsung/mali/linux/mali_profiling_events.h b/drivers/media/video/samsung/mali/linux/mali_profiling_events.h new file mode 100644 index 0000000..2639a40 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_profiling_events.h @@ -0,0 +1,17 @@ +/* + * Copyright (C) 2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __MALI_PROFILING_EVENTS_H__ +#define __MALI_PROFILING_EVENTS_H__ + +/* Simple wrapper in order to find the OS specific location of this file */ +#include <linux/mali/mali_utgard_profiling_events.h> + +#endif /* __MALI_PROFILING_EVENTS_H__ */ diff --git a/drivers/media/video/samsung/mali/linux/mali_uk_types.h b/drivers/media/video/samsung/mali/linux/mali_uk_types.h new file mode 100644 index 0000000..1a81246 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_uk_types.h @@ -0,0 +1,18 @@ +/* + * Copyright (C) 2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __MALI_UK_TYPES_H__ +#define __MALI_UK_TYPES_H__ + +/* Simple wrapper in order to find the OS specific location of this file */ +//#include <linux/mali/mali_utgard_uk_types.h> +#include "../include/linux/mali/mali_utgard_uk_types.h" + +#endif /* __MALI_UK_TYPES_H__ */ diff --git a/drivers/media/video/samsung/mali/linux/mali_ukk_core.c b/drivers/media/video/samsung/mali/linux/mali_ukk_core.c new file mode 100644 index 0000000..22262fe --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_ukk_core.c @@ -0,0 +1,104 @@ +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#include <linux/fs.h> /* file system operations */ +#include <linux/slab.h> /* memort allocation functions */ +#include <asm/uaccess.h> /* user space access */ + +#include "mali_ukk.h" +#include "mali_osk.h" +#include "mali_kernel_common.h" +#include "mali_session.h" +#include "mali_ukk_wrappers.h" + +int get_api_version_wrapper(struct mali_session_data *session_data, _mali_uk_get_api_version_s __user *uargs) +{ + _mali_uk_get_api_version_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + if (0 != get_user(kargs.version, &uargs->version)) return -EFAULT; + + kargs.ctx = session_data; + err = _mali_ukk_get_api_version(&kargs); + if (_MALI_OSK_ERR_OK != err) return map_errcode(err); + + if (0 != put_user(kargs.version, &uargs->version)) return -EFAULT; + if (0 != put_user(kargs.compatible, &uargs->compatible)) return -EFAULT; + + return 0; +} + +int wait_for_notification_wrapper(struct mali_session_data *session_data, _mali_uk_wait_for_notification_s __user *uargs) +{ + _mali_uk_wait_for_notification_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + kargs.ctx = session_data; + err = _mali_ukk_wait_for_notification(&kargs); + if (_MALI_OSK_ERR_OK != err) return map_errcode(err); + + if(_MALI_NOTIFICATION_CORE_SHUTDOWN_IN_PROGRESS != kargs.type) + { + kargs.ctx = NULL; /* prevent kernel address to be returned to user space */ + if (0 != copy_to_user(uargs, &kargs, sizeof(_mali_uk_wait_for_notification_s))) return -EFAULT; + } + else + { + if (0 != put_user(kargs.type, &uargs->type)) return -EFAULT; + } + + return 0; +} + +int post_notification_wrapper(struct mali_session_data *session_data, _mali_uk_post_notification_s __user *uargs) +{ + _mali_uk_post_notification_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + kargs.ctx = session_data; + + if (0 != get_user(kargs.type, &uargs->type)) + { + return -EFAULT; + } + + err = _mali_ukk_post_notification(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + return 0; +} + +int get_user_settings_wrapper(struct mali_session_data *session_data, _mali_uk_get_user_settings_s __user *uargs) +{ + _mali_uk_get_user_settings_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + kargs.ctx = session_data; + err = _mali_ukk_get_user_settings(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + kargs.ctx = NULL; /* prevent kernel address to be returned to user space */ + if (0 != copy_to_user(uargs, &kargs, sizeof(_mali_uk_get_user_settings_s))) return -EFAULT; + + return 0; +} diff --git a/drivers/media/video/samsung/mali/linux/mali_ukk_gp.c b/drivers/media/video/samsung/mali/linux/mali_ukk_gp.c new file mode 100644 index 0000000..7070016 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_ukk_gp.c @@ -0,0 +1,113 @@ +/* + * Copyright (C) 2010, 2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#include <linux/fs.h> /* file system operations */ +#include <asm/uaccess.h> /* user space access */ + +#include "mali_ukk.h" +#include "mali_osk.h" +#include "mali_kernel_common.h" +#include "mali_session.h" +#include "mali_ukk_wrappers.h" + +int gp_start_job_wrapper(struct mali_session_data *session_data, _mali_uk_gp_start_job_s __user *uargs) +{ + _mali_uk_gp_start_job_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + MALI_CHECK_NON_NULL(session_data, -EINVAL); + + if (!access_ok(VERIFY_WRITE, uargs, sizeof(_mali_uk_gp_start_job_s))) + { + return -EFAULT; + } + + if (0 != copy_from_user(&kargs, uargs, sizeof(_mali_uk_gp_start_job_s))) return -EFAULT; + + kargs.ctx = session_data; + err = _mali_ukk_gp_start_job(&kargs); + if (_MALI_OSK_ERR_OK != err) return map_errcode(err); + + kargs.ctx = NULL; /* prevent kernel address to be returned to user space */ + + if (0 != copy_to_user(uargs, &kargs, sizeof(_mali_uk_gp_start_job_s))) + { + /* + * If this happens, then user space will not know that the job was actually started, + * and if we return a queued job, then user space will still think that one is still queued. + * This will typically lead to a deadlock in user space. + * This could however only happen if user space deliberately passes a user buffer which + * passes the access_ok(VERIFY_WRITE) check, but isn't fully writable at the time of copy_to_user(). + * The official Mali driver will never attempt to do that, and kernel space should not be affected. + * That is why we do not bother to do a complex rollback in this very very very rare case. + */ + return -EFAULT; + } + + return 0; +} + +int gp_get_core_version_wrapper(struct mali_session_data *session_data, _mali_uk_get_gp_core_version_s __user *uargs) +{ + _mali_uk_get_gp_core_version_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + MALI_CHECK_NON_NULL(session_data, -EINVAL); + + kargs.ctx = session_data; + err = _mali_ukk_get_gp_core_version(&kargs); + if (_MALI_OSK_ERR_OK != err) return map_errcode(err); + + /* no known transactions to roll-back */ + + if (0 != put_user(kargs.version, &uargs->version)) return -EFAULT; + + return 0; +} + +int gp_suspend_response_wrapper(struct mali_session_data *session_data, _mali_uk_gp_suspend_response_s __user *uargs) +{ + _mali_uk_gp_suspend_response_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + MALI_CHECK_NON_NULL(session_data, -EINVAL); + + if (0 != copy_from_user(&kargs, uargs, sizeof(_mali_uk_gp_suspend_response_s))) return -EFAULT; + + kargs.ctx = session_data; + err = _mali_ukk_gp_suspend_response(&kargs); + if (_MALI_OSK_ERR_OK != err) return map_errcode(err); + + if (0 != put_user(kargs.cookie, &uargs->cookie)) return -EFAULT; + + /* no known transactions to roll-back */ + return 0; +} + +int gp_get_number_of_cores_wrapper(struct mali_session_data *session_data, _mali_uk_get_gp_number_of_cores_s __user *uargs) +{ + _mali_uk_get_gp_number_of_cores_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + MALI_CHECK_NON_NULL(session_data, -EINVAL); + + kargs.ctx = session_data; + err = _mali_ukk_get_gp_number_of_cores(&kargs); + if (_MALI_OSK_ERR_OK != err) return map_errcode(err); + + /* no known transactions to roll-back */ + + if (0 != put_user(kargs.number_of_cores, &uargs->number_of_cores)) return -EFAULT; + + return 0; +} diff --git a/drivers/media/video/samsung/mali/linux/mali_ukk_mem.c b/drivers/media/video/samsung/mali/linux/mali_ukk_mem.c new file mode 100644 index 0000000..260f257 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_ukk_mem.c @@ -0,0 +1,259 @@ +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#include <linux/fs.h> /* file system operations */ +#include <asm/uaccess.h> /* user space access */ + +#include "mali_ukk.h" +#include "mali_osk.h" +#include "mali_kernel_common.h" +#include "mali_session.h" +#include "mali_ukk_wrappers.h" + +int mem_init_wrapper(struct mali_session_data *session_data, _mali_uk_init_mem_s __user *uargs) +{ + _mali_uk_init_mem_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + kargs.ctx = session_data; + err = _mali_ukk_init_mem(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + if (0 != put_user(kargs.mali_address_base, &uargs->mali_address_base)) goto mem_init_rollback; + if (0 != put_user(kargs.memory_size, &uargs->memory_size)) goto mem_init_rollback; + + return 0; + +mem_init_rollback: + { + _mali_uk_term_mem_s kargs; + kargs.ctx = session_data; + err = _mali_ukk_term_mem(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + MALI_DEBUG_PRINT(4, ("reverting _mali_ukk_init_mem, as a result of failing put_user(), failed\n")); + } + } + return -EFAULT; +} + +int mem_term_wrapper(struct mali_session_data *session_data, _mali_uk_term_mem_s __user *uargs) +{ + _mali_uk_term_mem_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + kargs.ctx = session_data; + err = _mali_ukk_term_mem(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + return 0; +} + +int mem_map_ext_wrapper(struct mali_session_data *session_data, _mali_uk_map_external_mem_s __user * argument) +{ + _mali_uk_map_external_mem_s uk_args; + _mali_osk_errcode_t err_code; + + /* validate input */ + /* the session_data pointer was validated by caller */ + MALI_CHECK_NON_NULL( argument, -EINVAL); + + /* get call arguments from user space. copy_from_user returns how many bytes which where NOT copied */ + if ( 0 != copy_from_user(&uk_args, (void __user *)argument, sizeof(_mali_uk_map_external_mem_s)) ) + { + return -EFAULT; + } + + uk_args.ctx = session_data; + err_code = _mali_ukk_map_external_mem( &uk_args ); + + if (0 != put_user(uk_args.cookie, &argument->cookie)) + { + if (_MALI_OSK_ERR_OK == err_code) + { + /* Rollback */ + _mali_uk_unmap_external_mem_s uk_args_unmap; + + uk_args_unmap.ctx = session_data; + uk_args_unmap.cookie = uk_args.cookie; + err_code = _mali_ukk_unmap_external_mem( &uk_args_unmap ); + if (_MALI_OSK_ERR_OK != err_code) + { + MALI_DEBUG_PRINT(4, ("reverting _mali_ukk_unmap_external_mem, as a result of failing put_user(), failed\n")); + } + } + return -EFAULT; + } + + /* Return the error that _mali_ukk_free_big_block produced */ + return map_errcode(err_code); +} + +int mem_unmap_ext_wrapper(struct mali_session_data *session_data, _mali_uk_unmap_external_mem_s __user * argument) +{ + _mali_uk_unmap_external_mem_s uk_args; + _mali_osk_errcode_t err_code; + + /* validate input */ + /* the session_data pointer was validated by caller */ + MALI_CHECK_NON_NULL( argument, -EINVAL); + + /* get call arguments from user space. copy_from_user returns how many bytes which where NOT copied */ + if ( 0 != copy_from_user(&uk_args, (void __user *)argument, sizeof(_mali_uk_unmap_external_mem_s)) ) + { + return -EFAULT; + } + + uk_args.ctx = session_data; + err_code = _mali_ukk_unmap_external_mem( &uk_args ); + + /* Return the error that _mali_ukk_free_big_block produced */ + return map_errcode(err_code); +} + +#if MALI_USE_UNIFIED_MEMORY_PROVIDER != 0 +int mem_release_ump_wrapper(struct mali_session_data *session_data, _mali_uk_release_ump_mem_s __user * argument) +{ + _mali_uk_release_ump_mem_s uk_args; + _mali_osk_errcode_t err_code; + + /* validate input */ + /* the session_data pointer was validated by caller */ + MALI_CHECK_NON_NULL( argument, -EINVAL); + + /* get call arguments from user space. copy_from_user returns how many bytes which where NOT copied */ + if ( 0 != copy_from_user(&uk_args, (void __user *)argument, sizeof(_mali_uk_release_ump_mem_s)) ) + { + return -EFAULT; + } + + uk_args.ctx = session_data; + err_code = _mali_ukk_release_ump_mem( &uk_args ); + + /* Return the error that _mali_ukk_free_big_block produced */ + return map_errcode(err_code); +} + +int mem_attach_ump_wrapper(struct mali_session_data *session_data, _mali_uk_attach_ump_mem_s __user * argument) +{ + _mali_uk_attach_ump_mem_s uk_args; + _mali_osk_errcode_t err_code; + + /* validate input */ + /* the session_data pointer was validated by caller */ + MALI_CHECK_NON_NULL( argument, -EINVAL); + + /* get call arguments from user space. copy_from_user returns how many bytes which where NOT copied */ + if ( 0 != copy_from_user(&uk_args, (void __user *)argument, sizeof(_mali_uk_attach_ump_mem_s)) ) + { + return -EFAULT; + } + + uk_args.ctx = session_data; + err_code = _mali_ukk_attach_ump_mem( &uk_args ); + + if (0 != put_user(uk_args.cookie, &argument->cookie)) + { + if (_MALI_OSK_ERR_OK == err_code) + { + /* Rollback */ + _mali_uk_release_ump_mem_s uk_args_unmap; + + uk_args_unmap.ctx = session_data; + uk_args_unmap.cookie = uk_args.cookie; + err_code = _mali_ukk_release_ump_mem( &uk_args_unmap ); + if (_MALI_OSK_ERR_OK != err_code) + { + MALI_DEBUG_PRINT(4, ("reverting _mali_ukk_attach_mem, as a result of failing put_user(), failed\n")); + } + } + return -EFAULT; + } + + /* Return the error that _mali_ukk_map_external_ump_mem produced */ + return map_errcode(err_code); +} +#endif /* MALI_USE_UNIFIED_MEMORY_PROVIDER */ + +int mem_query_mmu_page_table_dump_size_wrapper(struct mali_session_data *session_data, _mali_uk_query_mmu_page_table_dump_size_s __user * uargs) +{ + _mali_uk_query_mmu_page_table_dump_size_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + MALI_CHECK_NON_NULL(session_data, -EINVAL); + + kargs.ctx = session_data; + + err = _mali_ukk_query_mmu_page_table_dump_size(&kargs); + if (_MALI_OSK_ERR_OK != err) return map_errcode(err); + + if (0 != put_user(kargs.size, &uargs->size)) return -EFAULT; + + return 0; +} + +int mem_dump_mmu_page_table_wrapper(struct mali_session_data *session_data, _mali_uk_dump_mmu_page_table_s __user * uargs) +{ + _mali_uk_dump_mmu_page_table_s kargs; + _mali_osk_errcode_t err; + void *buffer; + int rc = -EFAULT; + + /* validate input */ + MALI_CHECK_NON_NULL(uargs, -EINVAL); + /* the session_data pointer was validated by caller */ + + kargs.buffer = NULL; + + /* get location of user buffer */ + if (0 != get_user(buffer, &uargs->buffer)) goto err_exit; + /* get size of mmu page table info buffer from user space */ + if ( 0 != get_user(kargs.size, &uargs->size) ) goto err_exit; + /* verify we can access the whole of the user buffer */ + if (!access_ok(VERIFY_WRITE, buffer, kargs.size)) goto err_exit; + + /* allocate temporary buffer (kernel side) to store mmu page table info */ + kargs.buffer = _mali_osk_valloc(kargs.size); + if (NULL == kargs.buffer) + { + rc = -ENOMEM; + goto err_exit; + } + + kargs.ctx = session_data; + err = _mali_ukk_dump_mmu_page_table(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + rc = map_errcode(err); + goto err_exit; + } + + /* copy mmu page table info back to user space and update pointers */ + if (0 != copy_to_user(uargs->buffer, kargs.buffer, kargs.size) ) goto err_exit; + if (0 != put_user((kargs.register_writes - (u32 *)kargs.buffer) + (u32 *)uargs->buffer, &uargs->register_writes)) goto err_exit; + if (0 != put_user((kargs.page_table_dump - (u32 *)kargs.buffer) + (u32 *)uargs->buffer, &uargs->page_table_dump)) goto err_exit; + if (0 != put_user(kargs.register_writes_size, &uargs->register_writes_size)) goto err_exit; + if (0 != put_user(kargs.page_table_dump_size, &uargs->page_table_dump_size)) goto err_exit; + rc = 0; + +err_exit: + if (kargs.buffer) _mali_osk_vfree(kargs.buffer); + return rc; +} diff --git a/drivers/media/video/samsung/mali/linux/mali_ukk_pp.c b/drivers/media/video/samsung/mali/linux/mali_ukk_pp.c new file mode 100644 index 0000000..c11c61b --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_ukk_pp.c @@ -0,0 +1,88 @@ +/* + * Copyright (C) 2010, 2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#include <linux/fs.h> /* file system operations */ +#include <asm/uaccess.h> /* user space access */ + +#include "mali_ukk.h" +#include "mali_osk.h" +#include "mali_kernel_common.h" +#include "mali_session.h" +#include "mali_ukk_wrappers.h" + +int pp_start_job_wrapper(struct mali_session_data *session_data, _mali_uk_pp_start_job_s __user *uargs) +{ + _mali_uk_pp_start_job_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + MALI_CHECK_NON_NULL(session_data, -EINVAL); + + if (!access_ok(VERIFY_WRITE, uargs, sizeof(_mali_uk_pp_start_job_s))) + { + return -EFAULT; + } + + if (0 != copy_from_user(&kargs, uargs, sizeof(_mali_uk_pp_start_job_s))) return -EFAULT; + + kargs.ctx = session_data; + err = _mali_ukk_pp_start_job(&kargs); + if (_MALI_OSK_ERR_OK != err) return map_errcode(err); + + return 0; +} + +int pp_get_number_of_cores_wrapper(struct mali_session_data *session_data, _mali_uk_get_pp_number_of_cores_s __user *uargs) +{ + _mali_uk_get_pp_number_of_cores_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + MALI_CHECK_NON_NULL(session_data, -EINVAL); + + kargs.ctx = session_data; + err = _mali_ukk_get_pp_number_of_cores(&kargs); + if (_MALI_OSK_ERR_OK != err) return map_errcode(err); + + if (0 != put_user(kargs.number_of_cores, &uargs->number_of_cores)) return -EFAULT; + + return 0; +} + +int pp_get_core_version_wrapper(struct mali_session_data *session_data, _mali_uk_get_pp_core_version_s __user *uargs) +{ + _mali_uk_get_pp_core_version_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + MALI_CHECK_NON_NULL(session_data, -EINVAL); + + kargs.ctx = session_data; + err = _mali_ukk_get_pp_core_version(&kargs); + if (_MALI_OSK_ERR_OK != err) return map_errcode(err); + + if (0 != put_user(kargs.version, &uargs->version)) return -EFAULT; + + return 0; +} + +int pp_disable_wb_wrapper(struct mali_session_data *session_data, _mali_uk_pp_disable_wb_s __user *uargs) +{ + _mali_uk_pp_disable_wb_s kargs; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + MALI_CHECK_NON_NULL(session_data, -EINVAL); + + if (0 != copy_from_user(&kargs, uargs, sizeof(_mali_uk_pp_disable_wb_s))) return -EFAULT; + + kargs.ctx = session_data; + _mali_ukk_pp_job_disable_wb(&kargs); + + return 0; +} diff --git a/drivers/media/video/samsung/mali/linux/mali_ukk_profiling.c b/drivers/media/video/samsung/mali/linux/mali_ukk_profiling.c new file mode 100644 index 0000000..f4e31c9 --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_ukk_profiling.c @@ -0,0 +1,183 @@ +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#include <linux/fs.h> /* file system operations */ +#include <asm/uaccess.h> /* user space access */ +#include <linux/slab.h> + +#include "mali_ukk.h" +#include "mali_osk.h" +#include "mali_kernel_common.h" +#include "mali_session.h" +#include "mali_ukk_wrappers.h" + +int profiling_start_wrapper(struct mali_session_data *session_data, _mali_uk_profiling_start_s __user *uargs) +{ + _mali_uk_profiling_start_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + if (0 != copy_from_user(&kargs, uargs, sizeof(_mali_uk_profiling_start_s))) + { + return -EFAULT; + } + + kargs.ctx = session_data; + err = _mali_ukk_profiling_start(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + if (0 != put_user(kargs.limit, &uargs->limit)) + { + return -EFAULT; + } + + return 0; +} + +int profiling_add_event_wrapper(struct mali_session_data *session_data, _mali_uk_profiling_add_event_s __user *uargs) +{ + _mali_uk_profiling_add_event_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + if (0 != copy_from_user(&kargs, uargs, sizeof(_mali_uk_profiling_add_event_s))) + { + return -EFAULT; + } + + kargs.ctx = session_data; + err = _mali_ukk_profiling_add_event(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + return 0; +} + +int profiling_stop_wrapper(struct mali_session_data *session_data, _mali_uk_profiling_stop_s __user *uargs) +{ + _mali_uk_profiling_stop_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + kargs.ctx = session_data; + err = _mali_ukk_profiling_stop(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + if (0 != put_user(kargs.count, &uargs->count)) + { + return -EFAULT; + } + + return 0; +} + +int profiling_get_event_wrapper(struct mali_session_data *session_data, _mali_uk_profiling_get_event_s __user *uargs) +{ + _mali_uk_profiling_get_event_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + if (0 != get_user(kargs.index, &uargs->index)) + { + return -EFAULT; + } + + kargs.ctx = session_data; + + err = _mali_ukk_profiling_get_event(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + kargs.ctx = NULL; /* prevent kernel address to be returned to user space */ + if (0 != copy_to_user(uargs, &kargs, sizeof(_mali_uk_profiling_get_event_s))) + { + return -EFAULT; + } + + return 0; +} + +int profiling_clear_wrapper(struct mali_session_data *session_data, _mali_uk_profiling_clear_s __user *uargs) +{ + _mali_uk_profiling_clear_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + kargs.ctx = session_data; + err = _mali_ukk_profiling_clear(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + return 0; +} + +int profiling_report_sw_counters_wrapper(struct mali_session_data *session_data, _mali_uk_sw_counters_report_s __user *uargs) +{ + _mali_uk_sw_counters_report_s kargs; + _mali_osk_errcode_t err; + u32 *counter_buffer; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + if (0 != copy_from_user(&kargs, uargs, sizeof(_mali_uk_sw_counters_report_s))) + { + return -EFAULT; + } + + /* make sure that kargs.num_counters is [at least somewhat] sane */ + if (kargs.num_counters > 10000) { + MALI_DEBUG_PRINT(1, ("User space attempted to allocate too many counters.\n")); + return -EINVAL; + } + + counter_buffer = (u32*)kmalloc(sizeof(u32) * kargs.num_counters, GFP_KERNEL); + if (NULL == counter_buffer) + { + return -ENOMEM; + } + + if (0 != copy_from_user(counter_buffer, kargs.counters, sizeof(u32) * kargs.num_counters)) + { + kfree(counter_buffer); + return -EFAULT; + } + + kargs.ctx = session_data; + kargs.counters = counter_buffer; + + err = _mali_ukk_sw_counters_report(&kargs); + + kfree(counter_buffer); + + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + return 0; +} + + diff --git a/drivers/media/video/samsung/mali/linux/mali_ukk_vsync.c b/drivers/media/video/samsung/mali/linux/mali_ukk_vsync.c new file mode 100644 index 0000000..f9b5a3e --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_ukk_vsync.c @@ -0,0 +1,41 @@ +/* + * Copyright (C) 2011-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#include <linux/fs.h> /* file system operations */ +#include <asm/uaccess.h> /* user space access */ + +#include "mali_ukk.h" +#include "mali_osk.h" +#include "mali_kernel_common.h" +#include "mali_session.h" +#include "mali_ukk_wrappers.h" + + +int vsync_event_report_wrapper(struct mali_session_data *session_data, _mali_uk_vsync_event_report_s __user *uargs) +{ + _mali_uk_vsync_event_report_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + if (0 != copy_from_user(&kargs, uargs, sizeof(_mali_uk_vsync_event_report_s))) + { + return -EFAULT; + } + + kargs.ctx = session_data; + err = _mali_ukk_vsync_event_report(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + return 0; +} + diff --git a/drivers/media/video/samsung/mali/linux/mali_ukk_wrappers.h b/drivers/media/video/samsung/mali/linux/mali_ukk_wrappers.h new file mode 100644 index 0000000..65857fd --- /dev/null +++ b/drivers/media/video/samsung/mali/linux/mali_ukk_wrappers.h @@ -0,0 +1,68 @@ +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_ukk_wrappers.h + * Defines the wrapper functions for each user-kernel function + */ + +#ifndef __MALI_UKK_WRAPPERS_H__ +#define __MALI_UKK_WRAPPERS_H__ + +#include "mali_uk_types.h" +#include "mali_osk.h" + +#ifdef __cplusplus +extern "C" +{ +#endif + +int wait_for_notification_wrapper(struct mali_session_data *session_data, _mali_uk_wait_for_notification_s __user *uargs); +int get_api_version_wrapper(struct mali_session_data *session_data, _mali_uk_get_api_version_s __user *uargs); +int get_user_settings_wrapper(struct mali_session_data *session_data, _mali_uk_get_user_settings_s __user *uargs); +int post_notification_wrapper(struct mali_session_data *session_data, _mali_uk_post_notification_s __user *uargs); +int mem_init_wrapper(struct mali_session_data *session_data, _mali_uk_init_mem_s __user *uargs); +int mem_term_wrapper(struct mali_session_data *session_data, _mali_uk_term_mem_s __user *uargs); +int mem_map_ext_wrapper(struct mali_session_data *session_data, _mali_uk_map_external_mem_s __user * argument); +int mem_unmap_ext_wrapper(struct mali_session_data *session_data, _mali_uk_unmap_external_mem_s __user * argument); +int mem_query_mmu_page_table_dump_size_wrapper(struct mali_session_data *session_data, _mali_uk_query_mmu_page_table_dump_size_s __user * uargs); +int mem_dump_mmu_page_table_wrapper(struct mali_session_data *session_data, _mali_uk_dump_mmu_page_table_s __user * uargs); + +#if MALI_USE_UNIFIED_MEMORY_PROVIDER != 0 +int mem_attach_ump_wrapper(struct mali_session_data *session_data, _mali_uk_attach_ump_mem_s __user * argument); +int mem_release_ump_wrapper(struct mali_session_data *session_data, _mali_uk_release_ump_mem_s __user * argument); +#endif /* MALI_USE_UNIFIED_MEMORY_PROVIDER */ + +int pp_start_job_wrapper(struct mali_session_data *session_data, _mali_uk_pp_start_job_s __user *uargs); +int pp_get_number_of_cores_wrapper(struct mali_session_data *session_data, _mali_uk_get_pp_number_of_cores_s __user *uargs); +int pp_get_core_version_wrapper(struct mali_session_data *session_data, _mali_uk_get_pp_core_version_s __user *uargs); +int pp_disable_wb_wrapper(struct mali_session_data *session_data, _mali_uk_pp_disable_wb_s __user *uargs); +int gp_start_job_wrapper(struct mali_session_data *session_data, _mali_uk_gp_start_job_s __user *uargs); +int gp_get_number_of_cores_wrapper(struct mali_session_data *session_data, _mali_uk_get_gp_number_of_cores_s __user *uargs); +int gp_get_core_version_wrapper(struct mali_session_data *session_data, _mali_uk_get_gp_core_version_s __user *uargs); +int gp_suspend_response_wrapper(struct mali_session_data *session_data, _mali_uk_gp_suspend_response_s __user *uargs); + +int profiling_start_wrapper(struct mali_session_data *session_data, _mali_uk_profiling_start_s __user *uargs); +int profiling_add_event_wrapper(struct mali_session_data *session_data, _mali_uk_profiling_add_event_s __user *uargs); +int profiling_stop_wrapper(struct mali_session_data *session_data, _mali_uk_profiling_stop_s __user *uargs); +int profiling_get_event_wrapper(struct mali_session_data *session_data, _mali_uk_profiling_get_event_s __user *uargs); +int profiling_clear_wrapper(struct mali_session_data *session_data, _mali_uk_profiling_clear_s __user *uargs); +int profiling_report_sw_counters_wrapper(struct mali_session_data *session_data, _mali_uk_sw_counters_report_s __user *uargs); + +int vsync_event_report_wrapper(struct mali_session_data *session_data, _mali_uk_vsync_event_report_s __user *uargs); + + +int map_errcode( _mali_osk_errcode_t err ); + +#ifdef __cplusplus +} +#endif + +#endif /* __MALI_UKK_WRAPPERS_H__ */ |