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Diffstat (limited to 'drivers/media/video/samsung/ump/common/ump_kernel_ref_drv.c')
-rw-r--r--drivers/media/video/samsung/ump/common/ump_kernel_ref_drv.c260
1 files changed, 0 insertions, 260 deletions
diff --git a/drivers/media/video/samsung/ump/common/ump_kernel_ref_drv.c b/drivers/media/video/samsung/ump/common/ump_kernel_ref_drv.c
deleted file mode 100644
index cb13232..0000000
--- a/drivers/media/video/samsung/ump/common/ump_kernel_ref_drv.c
+++ /dev/null
@@ -1,260 +0,0 @@
-/*
- * 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_osk.h"
-#include "mali_osk_list.h"
-#include "ump_osk.h"
-#include "ump_uk_types.h"
-
-#include "ump_kernel_interface_ref_drv.h"
-#include "ump_kernel_common.h"
-#include "ump_kernel_descriptor_mapping.h"
-
-#define UMP_MINIMUM_SIZE 4096
-#define UMP_MINIMUM_SIZE_MASK (~(UMP_MINIMUM_SIZE-1))
-#define UMP_SIZE_ALIGN(x) (((x)+UMP_MINIMUM_SIZE-1)&UMP_MINIMUM_SIZE_MASK)
-#define UMP_ADDR_ALIGN_OFFSET(x) ((x)&(UMP_MINIMUM_SIZE-1))
-static void phys_blocks_release(void * ctx, struct ump_dd_mem * descriptor);
-
-UMP_KERNEL_API_EXPORT ump_dd_handle ump_dd_handle_create_from_phys_blocks(ump_dd_physical_block * blocks, unsigned long num_blocks)
-{
- ump_dd_mem * mem;
- unsigned long size_total = 0;
- int map_id;
- u32 i;
-
- /* Go through the input blocks and verify that they are sane */
- for (i=0; i < num_blocks; i++)
- {
- unsigned long addr = blocks[i].addr;
- unsigned long size = blocks[i].size;
-
- DBG_MSG(5, ("Adding physical memory to new handle. Address: 0x%08lx, size: %lu\n", addr, size));
- size_total += blocks[i].size;
-
- if (0 != UMP_ADDR_ALIGN_OFFSET(addr))
- {
- MSG_ERR(("Trying to create UMP memory from unaligned physical address. Address: 0x%08lx\n", addr));
- return UMP_DD_HANDLE_INVALID;
- }
-
- if (0 != UMP_ADDR_ALIGN_OFFSET(size))
- {
- MSG_ERR(("Trying to create UMP memory with unaligned size. Size: %lu\n", size));
- return UMP_DD_HANDLE_INVALID;
- }
- }
-
- /* Allocate the ump_dd_mem struct for this allocation */
- mem = _mali_osk_malloc(sizeof(*mem));
- if (NULL == mem)
- {
- DBG_MSG(1, ("Could not allocate ump_dd_mem in ump_dd_handle_create_from_phys_blocks()\n"));
- return UMP_DD_HANDLE_INVALID;
- }
-
- /* Find a secure ID for this allocation */
- _mali_osk_lock_wait(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW);
- map_id = ump_descriptor_mapping_allocate_mapping(device.secure_id_map, (void*) mem);
-
- if (map_id < 0)
- {
- _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW);
- _mali_osk_free(mem);
- DBG_MSG(1, ("Failed to allocate secure ID in ump_dd_handle_create_from_phys_blocks()\n"));
- return UMP_DD_HANDLE_INVALID;
- }
-
- /* Now, make a copy of the block information supplied by the user */
- mem->block_array = _mali_osk_malloc(sizeof(ump_dd_physical_block)* num_blocks);
- if (NULL == mem->block_array)
- {
- ump_descriptor_mapping_free(device.secure_id_map, map_id);
- _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW);
- _mali_osk_free(mem);
- DBG_MSG(1, ("Could not allocate a mem handle for function ump_dd_handle_create_from_phys_blocks().\n"));
- return UMP_DD_HANDLE_INVALID;
- }
-
- _mali_osk_memcpy(mem->block_array, blocks, sizeof(ump_dd_physical_block) * num_blocks);
-
- /* And setup the rest of the ump_dd_mem struct */
- _mali_osk_atomic_init(&mem->ref_count, 1);
- mem->secure_id = (ump_secure_id)map_id;
- mem->size_bytes = size_total;
- mem->nr_blocks = num_blocks;
- mem->backend_info = NULL;
- mem->ctx = NULL;
- mem->release_func = phys_blocks_release;
- /* For now UMP handles created by ump_dd_handle_create_from_phys_blocks() is forced to be Uncached */
- mem->is_cached = 0;
- mem->hw_device = _UMP_UK_USED_BY_CPU;
- mem->lock_usage = UMP_NOT_LOCKED;
-
- _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW);
- DBG_MSG(3, ("UMP memory created. ID: %u, size: %lu\n", mem->secure_id, mem->size_bytes));
-
- return (ump_dd_handle)mem;
-}
-
-static void phys_blocks_release(void * ctx, struct ump_dd_mem * descriptor)
-{
- _mali_osk_free(descriptor->block_array);
- descriptor->block_array = NULL;
-}
-
-_mali_osk_errcode_t _ump_ukk_allocate( _ump_uk_allocate_s *user_interaction )
-{
- ump_session_data * session_data = NULL;
- ump_dd_mem *new_allocation = NULL;
- ump_session_memory_list_element * session_memory_element = NULL;
- int map_id;
-
- DEBUG_ASSERT_POINTER( user_interaction );
- DEBUG_ASSERT_POINTER( user_interaction->ctx );
-
- session_data = (ump_session_data *) user_interaction->ctx;
-
- session_memory_element = _mali_osk_calloc( 1, sizeof(ump_session_memory_list_element));
- if (NULL == session_memory_element)
- {
- DBG_MSG(1, ("Failed to allocate ump_session_memory_list_element in ump_ioctl_allocate()\n"));
- return _MALI_OSK_ERR_NOMEM;
- }
-
-
- new_allocation = _mali_osk_calloc( 1, sizeof(ump_dd_mem));
- if (NULL==new_allocation)
- {
- _mali_osk_free(session_memory_element);
- DBG_MSG(1, ("Failed to allocate ump_dd_mem in _ump_ukk_allocate()\n"));
- return _MALI_OSK_ERR_NOMEM;
- }
-
- /* Create a secure ID for this allocation */
- _mali_osk_lock_wait(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW);
- map_id = ump_descriptor_mapping_allocate_mapping(device.secure_id_map, (void*)new_allocation);
-
- if (map_id < 0)
- {
- _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW);
- _mali_osk_free(session_memory_element);
- _mali_osk_free(new_allocation);
- DBG_MSG(1, ("Failed to allocate secure ID in ump_ioctl_allocate()\n"));
- return - _MALI_OSK_ERR_INVALID_FUNC;
- }
-
- /* Initialize the part of the new_allocation that we know so for */
- new_allocation->secure_id = (ump_secure_id)map_id;
- _mali_osk_atomic_init(&new_allocation->ref_count,1);
- if ( 0==(UMP_REF_DRV_UK_CONSTRAINT_USE_CACHE & user_interaction->constraints) )
- new_allocation->is_cached = 0;
- else new_allocation->is_cached = 1;
-
- /* special case a size of 0, we should try to emulate what malloc does in this case, which is to return a valid pointer that must be freed, but can't be dereferences */
- if (0 == user_interaction->size)
- {
- user_interaction->size = 1; /* emulate by actually allocating the minimum block size */
- }
-
- new_allocation->size_bytes = UMP_SIZE_ALIGN(user_interaction->size); /* Page align the size */
- new_allocation->lock_usage = UMP_NOT_LOCKED;
-
- /* Now, ask the active memory backend to do the actual memory allocation */
- if (!device.backend->allocate( device.backend->ctx, new_allocation ) )
- {
- DBG_MSG(3, ("OOM: No more UMP memory left. Failed to allocate memory in ump_ioctl_allocate(). Size: %lu, requested size: %lu\n", new_allocation->size_bytes, (unsigned long)user_interaction->size));
- ump_descriptor_mapping_free(device.secure_id_map, map_id);
- _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW);
- _mali_osk_free(new_allocation);
- _mali_osk_free(session_memory_element);
- return _MALI_OSK_ERR_INVALID_FUNC;
- }
- new_allocation->hw_device = _UMP_UK_USED_BY_CPU;
- new_allocation->ctx = device.backend->ctx;
- new_allocation->release_func = device.backend->release;
-
- _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW);
-
- /* Initialize the session_memory_element, and add it to the session object */
- session_memory_element->mem = new_allocation;
- _mali_osk_lock_wait(session_data->lock, _MALI_OSK_LOCKMODE_RW);
- _mali_osk_list_add(&(session_memory_element->list), &(session_data->list_head_session_memory_list));
- _mali_osk_lock_signal(session_data->lock, _MALI_OSK_LOCKMODE_RW);
-
- user_interaction->secure_id = new_allocation->secure_id;
- user_interaction->size = new_allocation->size_bytes;
- DBG_MSG(3, ("UMP memory allocated. ID: %u, size: %lu\n", new_allocation->secure_id, new_allocation->size_bytes));
-
- return _MALI_OSK_ERR_OK;
-}
-
-
-UMP_KERNEL_API_EXPORT ump_dd_status_code ump_dd_meminfo_set(ump_dd_handle memh, void* args)
-{
- ump_dd_mem * mem;
- ump_secure_id secure_id;
-
- DEBUG_ASSERT_POINTER(memh);
-
- secure_id = ump_dd_secure_id_get(memh);
-
- _mali_osk_lock_wait(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW);
- if (0 == ump_descriptor_mapping_get(device.secure_id_map, (int)secure_id, (void**)&mem))
- {
- device.backend->set(mem, args);
- }
- else
- {
- _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW);
- DBG_MSG(1, ("Failed to look up mapping in ump_meminfo_set(). ID: %u\n", (ump_secure_id)secure_id));
- return UMP_DD_INVALID;
- }
-
- _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW);
-
- return UMP_DD_SUCCESS;
-}
-
-UMP_KERNEL_API_EXPORT void *ump_dd_meminfo_get(ump_secure_id secure_id, void* args)
-{
- ump_dd_mem * mem;
- void *result;
-
- _mali_osk_lock_wait(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW);
- if (0 == ump_descriptor_mapping_get(device.secure_id_map, (int)secure_id, (void**)&mem))
- {
- result = device.backend->get(mem, args);
- }
- else
- {
- _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW);
- DBG_MSG(1, ("Failed to look up mapping in ump_meminfo_get(). ID: %u\n", (ump_secure_id)secure_id));
- return UMP_DD_HANDLE_INVALID;
- }
-
- _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW);
-
- return result;
-}
-
-UMP_KERNEL_API_EXPORT ump_dd_handle ump_dd_handle_get_from_vaddr(unsigned long vaddr)
-{
- ump_dd_mem * mem;
-
- DBG_MSG(5, ("Getting handle from Virtual address. vaddr: %u\n", vaddr));
-
- _ump_osk_mem_mapregion_get(&mem, vaddr);
-
- DBG_MSG(1, ("Getting handle's Handle : 0x%8lx\n", mem));
-
- return (ump_dd_handle)mem;
-}
-