diff options
Diffstat (limited to 'drivers/gpu/mali400/r3p2/ump/common')
10 files changed, 1829 insertions, 0 deletions
diff --git a/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_api.c b/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_api.c new file mode 100644 index 0000000..013f4c6 --- /dev/null +++ b/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_api.c @@ -0,0 +1,548 @@ +/* + * 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.h" +#include "ump_kernel_common.h" + + + +/* ---------------- UMP kernel space API functions follows ---------------- */ + + + +UMP_KERNEL_API_EXPORT ump_secure_id ump_dd_secure_id_get(ump_dd_handle memh) +{ + ump_dd_mem * mem = (ump_dd_mem *)memh; + + DEBUG_ASSERT_POINTER(mem); + + DBG_MSG(5, ("Returning secure ID. ID: %u\n", mem->secure_id)); + + return mem->secure_id; +} + + + +UMP_KERNEL_API_EXPORT ump_dd_handle ump_dd_handle_create_from_secure_id(ump_secure_id secure_id) +{ + ump_dd_mem * mem; + + _mali_osk_lock_wait(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + + DBG_MSG(5, ("Getting handle from secure ID. ID: %u\n", secure_id)); + if (0 != ump_descriptor_mapping_get(device.secure_id_map, (int)secure_id, (void**)&mem)) + { + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + DBG_MSG(1, ("Secure ID not found. ID: %u\n", secure_id)); + return UMP_DD_HANDLE_INVALID; + } + + ump_dd_reference_add(mem); + + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + + return (ump_dd_handle)mem; +} + +/* MALI_SEC */ +UMP_KERNEL_API_EXPORT ump_dd_handle ump_dd_handle_get(ump_secure_id secure_id) +{ + ump_dd_mem * mem; + + _mali_osk_lock_wait(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + + DBG_MSG(5, ("Getting handle from secure ID. ID: %u\n", secure_id)); + if (0 != ump_descriptor_mapping_get(device.secure_id_map, (int)secure_id, (void**)&mem)) + { + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + DBG_MSG(1, ("Secure ID not found. ID: %u\n", secure_id)); + return UMP_DD_HANDLE_INVALID; + } + + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + + return (ump_dd_handle)mem; +} + +UMP_KERNEL_API_EXPORT unsigned long ump_dd_phys_block_count_get(ump_dd_handle memh) +{ + ump_dd_mem * mem = (ump_dd_mem*) memh; + + DEBUG_ASSERT_POINTER(mem); + + return mem->nr_blocks; +} + + + +UMP_KERNEL_API_EXPORT ump_dd_status_code ump_dd_phys_blocks_get(ump_dd_handle memh, ump_dd_physical_block * blocks, unsigned long num_blocks) +{ + ump_dd_mem * mem = (ump_dd_mem *)memh; + + DEBUG_ASSERT_POINTER(mem); + + if (blocks == NULL) + { + DBG_MSG(1, ("NULL parameter in ump_dd_phys_blocks_get()\n")); + return UMP_DD_INVALID; + } + + if (mem->nr_blocks != num_blocks) + { + DBG_MSG(1, ("Specified number of blocks do not match actual number of blocks\n")); + return UMP_DD_INVALID; + } + + DBG_MSG(5, ("Returning physical block information. ID: %u\n", mem->secure_id)); + + _mali_osk_memcpy(blocks, mem->block_array, sizeof(ump_dd_physical_block) * mem->nr_blocks); + + return UMP_DD_SUCCESS; +} + + + +UMP_KERNEL_API_EXPORT ump_dd_status_code ump_dd_phys_block_get(ump_dd_handle memh, unsigned long index, ump_dd_physical_block * block) +{ + ump_dd_mem * mem = (ump_dd_mem *)memh; + + DEBUG_ASSERT_POINTER(mem); + + if (block == NULL) + { + DBG_MSG(1, ("NULL parameter in ump_dd_phys_block_get()\n")); + return UMP_DD_INVALID; + } + + if (index >= mem->nr_blocks) + { + DBG_MSG(5, ("Invalid index specified in ump_dd_phys_block_get()\n")); + return UMP_DD_INVALID; + } + + DBG_MSG(5, ("Returning physical block information. ID: %u, index: %lu\n", mem->secure_id, index)); + + *block = mem->block_array[index]; + + return UMP_DD_SUCCESS; +} + + + +UMP_KERNEL_API_EXPORT unsigned long ump_dd_size_get(ump_dd_handle memh) +{ + ump_dd_mem * mem = (ump_dd_mem*)memh; + + DEBUG_ASSERT_POINTER(mem); + + DBG_MSG(5, ("Returning size. ID: %u, size: %lu\n", mem->secure_id, mem->size_bytes)); + + return mem->size_bytes; +} + + + +UMP_KERNEL_API_EXPORT void ump_dd_reference_add(ump_dd_handle memh) +{ + ump_dd_mem * mem = (ump_dd_mem*)memh; + int new_ref; + + DEBUG_ASSERT_POINTER(mem); + + new_ref = _ump_osk_atomic_inc_and_read(&mem->ref_count); + + DBG_MSG(5, ("Memory reference incremented. ID: %u, new value: %d\n", mem->secure_id, new_ref)); +} + + + +UMP_KERNEL_API_EXPORT void ump_dd_reference_release(ump_dd_handle memh) +{ + int new_ref; + ump_dd_mem * mem = (ump_dd_mem*)memh; + + DEBUG_ASSERT_POINTER(mem); + + /* We must hold this mutex while doing the atomic_dec_and_read, to protect + that elements in the ump_descriptor_mapping table is always valid. If they + are not, userspace may accidently map in this secure_ids right before its freed + giving a mapped backdoor into unallocated memory.*/ + _mali_osk_lock_wait(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + + new_ref = _ump_osk_atomic_dec_and_read(&mem->ref_count); + + DBG_MSG(5, ("Memory reference decremented. ID: %u, new value: %d\n", mem->secure_id, new_ref)); + + if (0 == new_ref) + { + DBG_MSG(3, ("Final release of memory. ID: %u\n", mem->secure_id)); + + ump_descriptor_mapping_free(device.secure_id_map, (int)mem->secure_id); + + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + mem->release_func(mem->ctx, mem); + _mali_osk_free(mem); + } + else + { + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + } +} + + + +/* --------------- Handling of user space requests follows --------------- */ + + +_mali_osk_errcode_t _ump_uku_get_api_version( _ump_uk_api_version_s *args ) +{ + ump_session_data * session_data; + + DEBUG_ASSERT_POINTER( args ); + DEBUG_ASSERT_POINTER( args->ctx ); + + session_data = (ump_session_data *)args->ctx; + + /* check compatability */ + if (args->version == UMP_IOCTL_API_VERSION) + { + DBG_MSG(3, ("API version set to newest %d (compatible)\n", GET_VERSION(args->version))); + args->compatible = 1; + session_data->api_version = args->version; + } + else if (args->version == MAKE_VERSION_ID(1)) + { + DBG_MSG(2, ("API version set to depricated: %d (compatible)\n", GET_VERSION(args->version))); + args->compatible = 1; + session_data->api_version = args->version; + } + else + { + DBG_MSG(2, ("API version set to %d (incompatible with client version %d)\n", GET_VERSION(UMP_IOCTL_API_VERSION), GET_VERSION(args->version))); + args->compatible = 0; + args->version = UMP_IOCTL_API_VERSION; /* report our version */ + } + + return _MALI_OSK_ERR_OK; +} + + +_mali_osk_errcode_t _ump_ukk_release( _ump_uk_release_s *release_info ) +{ + ump_session_memory_list_element * session_memory_element; + ump_session_memory_list_element * tmp; + ump_session_data * session_data; + _mali_osk_errcode_t ret = _MALI_OSK_ERR_INVALID_FUNC; + int secure_id; + + DEBUG_ASSERT_POINTER( release_info ); + DEBUG_ASSERT_POINTER( release_info->ctx ); + + /* Retreive the session data */ + session_data = (ump_session_data*)release_info->ctx; + + /* If there are many items in the memory session list we + * could be de-referencing this pointer a lot so keep a local copy + */ + secure_id = release_info->secure_id; + + DBG_MSG(4, ("Releasing memory with IOCTL, ID: %u\n", secure_id)); + + /* Iterate through the memory list looking for the requested secure ID */ + _mali_osk_lock_wait(session_data->lock, _MALI_OSK_LOCKMODE_RW); + _MALI_OSK_LIST_FOREACHENTRY(session_memory_element, tmp, &session_data->list_head_session_memory_list, ump_session_memory_list_element, list) + { + if ( session_memory_element->mem->secure_id == secure_id) + { + ump_dd_mem *release_mem; + + release_mem = session_memory_element->mem; + _mali_osk_list_del(&session_memory_element->list); + ump_dd_reference_release(release_mem); + _mali_osk_free(session_memory_element); + + ret = _MALI_OSK_ERR_OK; + break; + } + } + + _mali_osk_lock_signal(session_data->lock, _MALI_OSK_LOCKMODE_RW); + DBG_MSG_IF(1, _MALI_OSK_ERR_OK != ret, ("UMP memory with ID %u does not belong to this session.\n", secure_id)); + + DBG_MSG(4, ("_ump_ukk_release() returning 0x%x\n", ret)); + return ret; +} + +_mali_osk_errcode_t _ump_ukk_size_get( _ump_uk_size_get_s *user_interaction ) +{ + ump_dd_mem * mem; + _mali_osk_errcode_t ret = _MALI_OSK_ERR_FAULT; + + DEBUG_ASSERT_POINTER( user_interaction ); + + /* We lock the mappings so things don't get removed while we are looking for the memory */ + _mali_osk_lock_wait(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + if (0 == ump_descriptor_mapping_get(device.secure_id_map, (int)user_interaction->secure_id, (void**)&mem)) + { + user_interaction->size = mem->size_bytes; + DBG_MSG(4, ("Returning size. ID: %u, size: %lu ", (ump_secure_id)user_interaction->secure_id, (unsigned long)user_interaction->size)); + ret = _MALI_OSK_ERR_OK; + } + else + { + user_interaction->size = 0; + DBG_MSG(1, ("Failed to look up mapping in ump_ioctl_size_get(). ID: %u\n", (ump_secure_id)user_interaction->secure_id)); + } + + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + return ret; +} + + + +void _ump_ukk_msync( _ump_uk_msync_s *args ) +{ + ump_dd_mem * mem = NULL; + void *virtual = NULL; + u32 size = 0; + u32 offset = 0; + + _mali_osk_lock_wait(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + ump_descriptor_mapping_get(device.secure_id_map, (int)args->secure_id, (void**)&mem); + + if (NULL == mem) + { + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + DBG_MSG(1, ("Failed to look up mapping in _ump_ukk_msync(). ID: %u\n", (ump_secure_id)args->secure_id)); + return; + } + /* Ensure the memory doesn't dissapear when we are flushing it. */ + ump_dd_reference_add(mem); + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + + /* Returns the cache settings back to Userspace */ + args->is_cached=mem->is_cached; + + /* If this flag is the only one set, we should not do the actual flush, only the readout */ + if ( _UMP_UK_MSYNC_READOUT_CACHE_ENABLED==args->op ) + { + DBG_MSG(3, ("_ump_ukk_msync READOUT ID: %u Enabled: %d\n", (ump_secure_id)args->secure_id, mem->is_cached)); + goto msync_release_and_return; + } + + /* Nothing to do if the memory is not caches */ + if ( 0==mem->is_cached ) + { + DBG_MSG(3, ("_ump_ukk_msync IGNORING ID: %u Enabled: %d OP: %d\n", (ump_secure_id)args->secure_id, mem->is_cached, args->op)); + goto msync_release_and_return; + } + DBG_MSG(3, ("UMP[%02u] _ump_ukk_msync Flush OP: %d Address: 0x%08x Mapping: 0x%08x\n", + (ump_secure_id)args->secure_id, args->op, args->address, args->mapping)); + + if ( args->address ) + { + virtual = (void *)((u32)args->address); + offset = (u32)((args->address) - (args->mapping)); + } else { + /* Flush entire mapping when no address is specified. */ + virtual = args->mapping; + } + if ( args->size ) + { + size = args->size; + } else { + /* Flush entire mapping when no size is specified. */ + size = mem->size_bytes - offset; + } + + if ( (offset + size) > mem->size_bytes ) + { + DBG_MSG(1, ("Trying to flush more than the entire UMP allocation: offset: %u + size: %u > %u\n", offset, size, mem->size_bytes)); + goto msync_release_and_return; + } + + /* The actual cache flush - Implemented for each OS*/ + _ump_osk_msync( mem, virtual, offset, size, args->op, NULL); + +msync_release_and_return: + ump_dd_reference_release(mem); + return; +} + +void _ump_ukk_cache_operations_control(_ump_uk_cache_operations_control_s* args) +{ + ump_session_data * session_data; + ump_uk_cache_op_control op; + + DEBUG_ASSERT_POINTER( args ); + DEBUG_ASSERT_POINTER( args->ctx ); + + op = args->op; + session_data = (ump_session_data *)args->ctx; + + _mali_osk_lock_wait(session_data->lock, _MALI_OSK_LOCKMODE_RW); + if ( op== _UMP_UK_CACHE_OP_START ) + { + session_data->cache_operations_ongoing++; + DBG_MSG(4, ("Cache ops start\n" )); + if ( session_data->cache_operations_ongoing != 1 ) + { + DBG_MSG(2, ("UMP: Number of simultanious cache control ops: %d\n", session_data->cache_operations_ongoing) ); + } + } + else if ( op== _UMP_UK_CACHE_OP_FINISH ) + { + DBG_MSG(4, ("Cache ops finish\n")); + session_data->cache_operations_ongoing--; + #if 0 + if ( session_data->has_pending_level1_cache_flush) + { + /* This function will set has_pending_level1_cache_flush=0 */ + _ump_osk_msync( NULL, NULL, 0, 0, _UMP_UK_MSYNC_FLUSH_L1, session_data); + } + #endif + + /* to be on the safe side: always flush l1 cache when cache operations are done */ + _ump_osk_msync( NULL, NULL, 0, 0, _UMP_UK_MSYNC_FLUSH_L1, session_data); + DBG_MSG(4, ("Cache ops finish end\n" )); + } + else + { + DBG_MSG(1, ("Illegal call to %s at line %d\n", __FUNCTION__, __LINE__)); + } + _mali_osk_lock_signal(session_data->lock, _MALI_OSK_LOCKMODE_RW); + +} + +void _ump_ukk_switch_hw_usage(_ump_uk_switch_hw_usage_s *args ) +{ + ump_dd_mem * mem = NULL; + ump_uk_user old_user; + ump_uk_msync_op cache_op = _UMP_UK_MSYNC_CLEAN_AND_INVALIDATE; + ump_session_data *session_data; + + DEBUG_ASSERT_POINTER( args ); + DEBUG_ASSERT_POINTER( args->ctx ); + + session_data = (ump_session_data *)args->ctx; + + _mali_osk_lock_wait(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + ump_descriptor_mapping_get(device.secure_id_map, (int)args->secure_id, (void**)&mem); + + if (NULL == mem) + { + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + DBG_MSG(1, ("Failed to look up mapping in _ump_ukk_switch_hw_usage(). ID: %u\n", (ump_secure_id)args->secure_id)); + return; + } + + old_user = mem->hw_device; + mem->hw_device = args->new_user; + + DBG_MSG(3, ("UMP[%02u] Switch usage Start New: %s Prev: %s.\n", (ump_secure_id)args->secure_id, args->new_user?"MALI":"CPU",old_user?"MALI":"CPU")); + + if ( ! mem->is_cached ) + { + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + DBG_MSG(3, ("UMP[%02u] Changing owner of uncached memory. Cache flushing not needed.\n", (ump_secure_id)args->secure_id)); + return; + } + + if ( old_user == args->new_user) + { + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + DBG_MSG(4, ("UMP[%02u] Setting the new_user equal to previous for. Cache flushing not needed.\n", (ump_secure_id)args->secure_id)); + return; + } + if ( + /* Previous AND new is both different from CPU */ + (old_user != _UMP_UK_USED_BY_CPU) && (args->new_user != _UMP_UK_USED_BY_CPU ) + ) + { + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + DBG_MSG(4, ("UMP[%02u] Previous and new user is not CPU. Cache flushing not needed.\n", (ump_secure_id)args->secure_id)); + return; + } + + if ( (old_user != _UMP_UK_USED_BY_CPU ) && (args->new_user==_UMP_UK_USED_BY_CPU) ) + { + cache_op =_UMP_UK_MSYNC_INVALIDATE; + DBG_MSG(4, ("UMP[%02u] Cache invalidation needed\n", (ump_secure_id)args->secure_id)); +#ifdef UMP_SKIP_INVALIDATION +#error + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + DBG_MSG(4, ("UMP[%02u] Performing Cache invalidation SKIPPED\n", (ump_secure_id)args->secure_id)); + return; +#endif + } + /* Ensure the memory doesn't dissapear when we are flushing it. */ + ump_dd_reference_add(mem); + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + + /* Take lock to protect: session->cache_operations_ongoing and session->has_pending_level1_cache_flush */ + _mali_osk_lock_wait(session_data->lock, _MALI_OSK_LOCKMODE_RW); + /* Actual cache flush */ + _ump_osk_msync( mem, NULL, 0, mem->size_bytes, cache_op, session_data); + _mali_osk_lock_signal(session_data->lock, _MALI_OSK_LOCKMODE_RW); + + ump_dd_reference_release(mem); + DBG_MSG(4, ("UMP[%02u] Switch usage Finish\n", (ump_secure_id)args->secure_id)); + return; +} + +void _ump_ukk_lock(_ump_uk_lock_s *args ) +{ + ump_dd_mem * mem = NULL; + + _mali_osk_lock_wait(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + ump_descriptor_mapping_get(device.secure_id_map, (int)args->secure_id, (void**)&mem); + + if (NULL == mem) + { + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + DBG_MSG(1, ("UMP[%02u] Failed to look up mapping in _ump_ukk_lock(). ID: %u\n", (ump_secure_id)args->secure_id)); + return; + } + ump_dd_reference_add(mem); + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + + DBG_MSG(1, ("UMP[%02u] Lock. New lock flag: %d. Old Lock flag:\n", (u32)args->secure_id, (u32)args->lock_usage, (u32) mem->lock_usage )); + + mem->lock_usage = (ump_lock_usage) args->lock_usage; + + ump_dd_reference_release(mem); +} + +void _ump_ukk_unlock(_ump_uk_unlock_s *args ) +{ + ump_dd_mem * mem = NULL; + + _mali_osk_lock_wait(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + ump_descriptor_mapping_get(device.secure_id_map, (int)args->secure_id, (void**)&mem); + + if (NULL == mem) + { + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + DBG_MSG(1, ("Failed to look up mapping in _ump_ukk_unlock(). ID: %u\n", (ump_secure_id)args->secure_id)); + return; + } + ump_dd_reference_add(mem); + _mali_osk_lock_signal(device.secure_id_map_lock, _MALI_OSK_LOCKMODE_RW); + + DBG_MSG(1, ("UMP[%02u] Unlocking. Old Lock flag:\n", (u32)args->secure_id, (u32) mem->lock_usage )); + + mem->lock_usage = (ump_lock_usage) UMP_NOT_LOCKED; + + ump_dd_reference_release(mem); +} diff --git a/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_common.c b/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_common.c new file mode 100644 index 0000000..cf072fb --- /dev/null +++ b/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_common.c @@ -0,0 +1,418 @@ +/* + * 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_bitops.h" +#include "mali_osk_list.h" +#include "ump_osk.h" +#include "ump_uk_types.h" +#include "ump_ukk.h" +#include "ump_kernel_common.h" +#include "ump_kernel_descriptor_mapping.h" +#include "ump_kernel_memory_backend.h" + + + +/** + * Define the initial and maximum size of number of secure_ids on the system + */ +#define UMP_SECURE_ID_TABLE_ENTRIES_INITIAL (128 ) +#define UMP_SECURE_ID_TABLE_ENTRIES_MAXIMUM (4096 ) + + +/** + * Define the initial and maximum size of the ump_session_data::cookies_map, + * which is a \ref ump_descriptor_mapping. This limits how many secure_ids + * may be mapped into a particular process using _ump_ukk_map_mem(). + */ + +#define UMP_COOKIES_PER_SESSION_INITIAL (UMP_SECURE_ID_TABLE_ENTRIES_INITIAL ) +#define UMP_COOKIES_PER_SESSION_MAXIMUM (UMP_SECURE_ID_TABLE_ENTRIES_MAXIMUM) + +struct ump_dev device; + +_mali_osk_errcode_t ump_kernel_constructor(void) +{ + _mali_osk_errcode_t err; + + /* Perform OS Specific initialization */ + err = _ump_osk_init(); + if( _MALI_OSK_ERR_OK != err ) + { + MSG_ERR(("Failed to initiaze the UMP Device Driver")); + return err; + } + + /* Init the global device */ + _mali_osk_memset(&device, 0, sizeof(device) ); + + /* Create the descriptor map, which will be used for mapping secure ID to ump_dd_mem structs */ + device.secure_id_map_lock = _mali_osk_lock_init(_MALI_OSK_LOCKFLAG_NONINTERRUPTABLE, 0 , 0); + if (NULL == device.secure_id_map_lock) + { + MSG_ERR(("Failed to create OSK lock for secure id lookup table\n")); + return _MALI_OSK_ERR_NOMEM; + } + + device.secure_id_map = ump_descriptor_mapping_create(UMP_SECURE_ID_TABLE_ENTRIES_INITIAL, UMP_SECURE_ID_TABLE_ENTRIES_MAXIMUM); + if (NULL == device.secure_id_map) + { + _mali_osk_lock_term(device.secure_id_map_lock); + MSG_ERR(("Failed to create secure id lookup table\n")); + return _MALI_OSK_ERR_NOMEM; + } + + /* Init memory backend */ + device.backend = ump_memory_backend_create(); + if (NULL == device.backend) + { + MSG_ERR(("Failed to create memory backend\n")); + _mali_osk_lock_term(device.secure_id_map_lock); + ump_descriptor_mapping_destroy(device.secure_id_map); + return _MALI_OSK_ERR_NOMEM; + } + + return _MALI_OSK_ERR_OK; +} + +void ump_kernel_destructor(void) +{ + DEBUG_ASSERT_POINTER(device.secure_id_map); + DEBUG_ASSERT_POINTER(device.secure_id_map_lock); + + _mali_osk_lock_term(device.secure_id_map_lock); + device.secure_id_map_lock = NULL; + + ump_descriptor_mapping_destroy(device.secure_id_map); + device.secure_id_map = NULL; + + device.backend->shutdown(device.backend); + device.backend = NULL; + + ump_memory_backend_destroy(); + + _ump_osk_term(); +} + +/** Creates a new UMP session + */ +_mali_osk_errcode_t _ump_ukk_open( void** context ) +{ + struct ump_session_data * session_data; + + /* allocated struct to track this session */ + session_data = (struct ump_session_data *)_mali_osk_malloc(sizeof(struct ump_session_data)); + if (NULL == session_data) + { + MSG_ERR(("Failed to allocate ump_session_data in ump_file_open()\n")); + return _MALI_OSK_ERR_NOMEM; + } + + session_data->lock = _mali_osk_lock_init(_MALI_OSK_LOCKFLAG_NONINTERRUPTABLE, 0, 0); + if( NULL == session_data->lock ) + { + MSG_ERR(("Failed to initialize lock for ump_session_data in ump_file_open()\n")); + _mali_osk_free(session_data); + return _MALI_OSK_ERR_NOMEM; + } + + session_data->cookies_map = ump_descriptor_mapping_create( UMP_COOKIES_PER_SESSION_INITIAL, UMP_COOKIES_PER_SESSION_MAXIMUM ); + + if ( NULL == session_data->cookies_map ) + { + MSG_ERR(("Failed to create descriptor mapping for _ump_ukk_map_mem cookies\n")); + + _mali_osk_lock_term( session_data->lock ); + _mali_osk_free( session_data ); + return _MALI_OSK_ERR_NOMEM; + } + + _MALI_OSK_INIT_LIST_HEAD(&session_data->list_head_session_memory_list); + + _MALI_OSK_INIT_LIST_HEAD(&session_data->list_head_session_memory_mappings_list); + + /* Since initial version of the UMP interface did not use the API_VERSION ioctl we have to assume + that it is this version, and not the "latest" one: UMP_IOCTL_API_VERSION + Current and later API versions would do an additional call to this IOCTL and update this variable + to the correct one.*/ + session_data->api_version = MAKE_VERSION_ID(1); + + *context = (void*)session_data; + + session_data->cache_operations_ongoing = 0 ; + session_data->has_pending_level1_cache_flush = 0; + + DBG_MSG(2, ("New session opened\n")); + + return _MALI_OSK_ERR_OK; +} + +_mali_osk_errcode_t _ump_ukk_close( void** context ) +{ + struct ump_session_data * session_data; + ump_session_memory_list_element * item; + ump_session_memory_list_element * tmp; + + session_data = (struct ump_session_data *)*context; + if (NULL == session_data) + { + MSG_ERR(("Session data is NULL in _ump_ukk_close()\n")); + return _MALI_OSK_ERR_INVALID_ARGS; + } + + /* Unmap any descriptors mapped in. */ + if (0 == _mali_osk_list_empty(&session_data->list_head_session_memory_mappings_list)) + { + ump_memory_allocation *descriptor; + ump_memory_allocation *temp; + + DBG_MSG(1, ("Memory mappings found on session usage list during session termination\n")); + + /* use the 'safe' list iterator, since freeing removes the active block from the list we're iterating */ + _MALI_OSK_LIST_FOREACHENTRY(descriptor, temp, &session_data->list_head_session_memory_mappings_list, ump_memory_allocation, list) + { + _ump_uk_unmap_mem_s unmap_args; + DBG_MSG(4, ("Freeing block with phys address 0x%x size 0x%x mapped in user space at 0x%x\n", + descriptor->phys_addr, descriptor->size, descriptor->mapping)); + unmap_args.ctx = (void*)session_data; + unmap_args.mapping = descriptor->mapping; + unmap_args.size = descriptor->size; + unmap_args._ukk_private = NULL; /* NOTE: unused */ + unmap_args.cookie = descriptor->cookie; + + /* NOTE: This modifies the list_head_session_memory_mappings_list */ + _ump_ukk_unmap_mem( &unmap_args ); + } + } + + /* ASSERT that we really did free everything, because _ump_ukk_unmap_mem() + * can fail silently. */ + DEBUG_ASSERT( _mali_osk_list_empty(&session_data->list_head_session_memory_mappings_list) ); + + _MALI_OSK_LIST_FOREACHENTRY(item, tmp, &session_data->list_head_session_memory_list, ump_session_memory_list_element, list) + { + _mali_osk_list_del(&item->list); + DBG_MSG(2, ("Releasing UMP memory %u as part of file close\n", item->mem->secure_id)); + ump_dd_reference_release(item->mem); + _mali_osk_free(item); + } + + ump_descriptor_mapping_destroy( session_data->cookies_map ); + + _mali_osk_lock_term(session_data->lock); + _mali_osk_free(session_data); + + DBG_MSG(2, ("Session closed\n")); + + return _MALI_OSK_ERR_OK; +} + +_mali_osk_errcode_t _ump_ukk_map_mem( _ump_uk_map_mem_s *args ) +{ + struct ump_session_data * session_data; + ump_memory_allocation * descriptor; /* Describes current mapping of memory */ + _mali_osk_errcode_t err; + unsigned long offset = 0; + unsigned long left; + ump_dd_handle handle; /* The real UMP handle for this memory. Its real datatype is ump_dd_mem* */ + ump_dd_mem * mem; /* The real UMP memory. It is equal to the handle, but with exposed struct */ + u32 block; + int map_id; + + session_data = (ump_session_data *)args->ctx; + if( NULL == session_data ) + { + MSG_ERR(("Session data is NULL in _ump_ukk_map_mem()\n")); + return _MALI_OSK_ERR_INVALID_ARGS; + } + /* MALI_SEC */ + /* SEC kernel stability 2012-02-17 */ + if (NULL == session_data->cookies_map) + { + MSG_ERR(("session_data->cookies_map is NULL in _ump_ukk_map_mem()\n")); + return _MALI_OSK_ERR_INVALID_ARGS; + } + descriptor = (ump_memory_allocation*) _mali_osk_calloc( 1, sizeof(ump_memory_allocation)); + if (NULL == descriptor) + { + MSG_ERR(("ump_ukk_map_mem: descriptor allocation failed\n")); + return _MALI_OSK_ERR_NOMEM; + } + + handle = ump_dd_handle_create_from_secure_id(args->secure_id); + if ( UMP_DD_HANDLE_INVALID == handle) + { + _mali_osk_free(descriptor); + DBG_MSG(1, ("Trying to map unknown secure ID %u\n", args->secure_id)); + return _MALI_OSK_ERR_FAULT; + } + + mem = (ump_dd_mem*)handle; + DEBUG_ASSERT(mem); + if (mem->size_bytes != args->size) + { + _mali_osk_free(descriptor); + ump_dd_reference_release(handle); + DBG_MSG(1, ("Trying to map too much or little. ID: %u, virtual size=%lu, UMP size: %lu\n", args->secure_id, args->size, mem->size_bytes)); + return _MALI_OSK_ERR_FAULT; + } + + map_id = ump_descriptor_mapping_allocate_mapping( session_data->cookies_map, (void*) descriptor ); + + if (map_id < 0) + { + _mali_osk_free(descriptor); + ump_dd_reference_release(handle); + DBG_MSG(1, ("ump_ukk_map_mem: unable to allocate a descriptor_mapping for return cookie\n")); + + return _MALI_OSK_ERR_NOMEM; + } + + descriptor->size = args->size; + descriptor->handle = handle; + descriptor->phys_addr = args->phys_addr; + descriptor->process_mapping_info = args->_ukk_private; + descriptor->ump_session = session_data; + descriptor->cookie = (u32)map_id; + + if ( mem->is_cached ) + { + descriptor->is_cached = 1; + args->is_cached = 1; + DBG_MSG(3, ("Mapping UMP secure_id: %d as cached.\n", args->secure_id)); + } + /* MALI_SEC */ + else if ( args->is_cached) + { + mem->is_cached = 1; + descriptor->is_cached = 1; + DBG_MSG(3, ("Warning mapping UMP secure_id: %d. As cached, while it was allocated uncached.\n", args->secure_id)); + } + else + { + descriptor->is_cached = 0; + args->is_cached = 0; + DBG_MSG(3, ("Mapping UMP secure_id: %d as Uncached.\n", args->secure_id)); + } + + _mali_osk_list_init( &descriptor->list ); + + err = _ump_osk_mem_mapregion_init( descriptor ); + if( _MALI_OSK_ERR_OK != err ) + { + DBG_MSG(1, ("Failed to initialize memory mapping in _ump_ukk_map_mem(). ID: %u\n", args->secure_id)); + ump_descriptor_mapping_free( session_data->cookies_map, map_id ); + _mali_osk_free(descriptor); + ump_dd_reference_release(mem); + return err; + } + + DBG_MSG(4, ("Mapping virtual to physical memory: ID: %u, size:%lu, first physical addr: 0x%08lx, number of regions: %lu\n", + mem->secure_id, + mem->size_bytes, + ((NULL != mem->block_array) ? mem->block_array->addr : 0), + mem->nr_blocks)); + + left = descriptor->size; + /* loop over all blocks and map them in */ + for (block = 0; block < mem->nr_blocks; block++) + { + unsigned long size_to_map; + + if (left > mem->block_array[block].size) + { + size_to_map = mem->block_array[block].size; + } + else + { + size_to_map = left; + } + + if (_MALI_OSK_ERR_OK != _ump_osk_mem_mapregion_map(descriptor, offset, (u32 *)&(mem->block_array[block].addr), size_to_map ) ) + { + DBG_MSG(1, ("WARNING: _ump_ukk_map_mem failed to map memory into userspace\n")); + printk(KERN_ALERT"UMP:_ump_ukk_map_mem failed to map memory into userspace\n"); + ump_descriptor_mapping_free( session_data->cookies_map, map_id ); + ump_dd_reference_release(mem); + _ump_osk_mem_mapregion_term( descriptor ); + _mali_osk_free(descriptor); + return _MALI_OSK_ERR_FAULT; + } + left -= size_to_map; + offset += size_to_map; + } + + /* Add to the ump_memory_allocation tracking list */ + _mali_osk_lock_wait(session_data->lock, _MALI_OSK_LOCKMODE_RW); + _mali_osk_list_add( &descriptor->list, &session_data->list_head_session_memory_mappings_list ); + _mali_osk_lock_signal(session_data->lock, _MALI_OSK_LOCKMODE_RW); + + args->mapping = descriptor->mapping; + args->cookie = descriptor->cookie; + + return _MALI_OSK_ERR_OK; +} + +void _ump_ukk_unmap_mem( _ump_uk_unmap_mem_s *args ) +{ + struct ump_session_data * session_data; + ump_memory_allocation * descriptor; + ump_dd_handle handle; + + session_data = (ump_session_data *)args->ctx; + + if( NULL == session_data ) + { + MSG_ERR(("Session data is NULL in _ump_ukk_map_mem()\n")); + return; + } + /* MALI_SEC */ + /* SEC kernel stability 2012-02-17 */ + if (NULL == session_data->cookies_map) + { + MSG_ERR(("session_data->cookies_map is NULL in _ump_ukk_map_mem()\n")); + return; + } + if (0 != ump_descriptor_mapping_get( session_data->cookies_map, (int)args->cookie, (void**)&descriptor) ) + { + MSG_ERR(("_ump_ukk_map_mem: cookie 0x%X not found for this session\n", args->cookie )); + return; + } + + DEBUG_ASSERT_POINTER(descriptor); + + handle = descriptor->handle; + if ( UMP_DD_HANDLE_INVALID == handle) + { + DBG_MSG(1, ("WARNING: Trying to unmap unknown handle: UNKNOWN\n")); + return; + } + + /* Remove the ump_memory_allocation from the list of tracked mappings */ + _mali_osk_lock_wait(session_data->lock, _MALI_OSK_LOCKMODE_RW); + _mali_osk_list_del( &descriptor->list ); + _mali_osk_lock_signal(session_data->lock, _MALI_OSK_LOCKMODE_RW); + + ump_descriptor_mapping_free( session_data->cookies_map, (int)args->cookie ); + + ump_dd_reference_release(handle); + + _ump_osk_mem_mapregion_term( descriptor ); + _mali_osk_free(descriptor); +} + +u32 _ump_ukk_report_memory_usage( void ) +{ + if(device.backend->stat) + return device.backend->stat(device.backend); + else + return 0; +} diff --git a/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_common.h b/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_common.h new file mode 100644 index 0000000..6e3a2e9 --- /dev/null +++ b/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_common.h @@ -0,0 +1,128 @@ +/* + * 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 __UMP_KERNEL_COMMON_H__ +#define __UMP_KERNEL_COMMON_H__ + +#include "ump_kernel_types.h" +#include "ump_kernel_interface.h" +#include "ump_kernel_descriptor_mapping.h" +#include "ump_kernel_memory_backend.h" + + +#ifdef DEBUG + extern int ump_debug_level; + #define UMP_DEBUG_PRINT(args) _mali_osk_dbgmsg args + #define UMP_DEBUG_CODE(args) args + #define DBG_MSG(level,args) do { /* args should be in brackets */ \ + ((level) <= ump_debug_level)?\ + UMP_DEBUG_PRINT(("UMP<" #level ">: ")), \ + UMP_DEBUG_PRINT(args):0; \ + } while (0) + + #define DBG_MSG_IF(level,condition,args) /* args should be in brackets */ \ + if((condition)&&((level) <= ump_debug_level)) {\ + UMP_DEBUG_PRINT(("UMP<" #level ">: ")); \ + UMP_DEBUG_PRINT(args); \ + } + + #define DBG_MSG_ELSE(level,args) /* args should be in brackets */ \ + else if((level) <= ump_debug_level) { \ + UMP_DEBUG_PRINT(("UMP<" #level ">: ")); \ + UMP_DEBUG_PRINT(args); \ + } + + #define DEBUG_ASSERT_POINTER(pointer) do {if( (pointer)== NULL) MSG_ERR(("NULL pointer " #pointer)); } while(0) + #define DEBUG_ASSERT(condition) do {if(!(condition)) MSG_ERR(("ASSERT failed: " #condition)); } while(0) +#else /* DEBUG */ + #define UMP_DEBUG_PRINT(args) do {} while(0) + #define UMP_DEBUG_CODE(args) + #define DBG_MSG(level,args) do {} while(0) + #define DBG_MSG_IF(level,condition,args) do {} while(0) + #define DBG_MSG_ELSE(level,args) do {} while(0) + #define DEBUG_ASSERT(condition) do {} while(0) + #define DEBUG_ASSERT_POINTER(pointer) do {} while(0) +#endif /* DEBUG */ + +#define MSG_ERR(args) do{ /* args should be in brackets */ \ + _mali_osk_dbgmsg("UMP: ERR: %s\n" ,__FILE__); \ + _mali_osk_dbgmsg( " %s()%4d\n", __FUNCTION__, __LINE__) ; \ + _mali_osk_dbgmsg args ; \ + _mali_osk_dbgmsg("\n"); \ + } while(0) + +#define MSG(args) do{ /* args should be in brackets */ \ + _mali_osk_dbgmsg("UMP: "); \ + _mali_osk_dbgmsg args; \ + } while (0) + + + +/* + * This struct is used to store per session data. + * A session is created when someone open() the device, and + * closed when someone close() it or the user space application terminates. + */ +typedef struct ump_session_data +{ + _mali_osk_list_t list_head_session_memory_list; /**< List of ump allocations made by the process (elements are ump_session_memory_list_element) */ + _mali_osk_list_t list_head_session_memory_mappings_list; /**< List of ump_memory_allocations mapped in */ + int api_version; + _mali_osk_lock_t * lock; + ump_descriptor_mapping * cookies_map; /**< Secure mapping of cookies from _ump_ukk_map_mem() */ + int cache_operations_ongoing; + int has_pending_level1_cache_flush; +} ump_session_data; + + + +/* + * This struct is used to track the UMP memory references a session has. + * We need to track this in order to be able to clean up after user space processes + * which don't do it themself (e.g. due to a crash or premature termination). + */ +typedef struct ump_session_memory_list_element +{ + struct ump_dd_mem * mem; + _mali_osk_list_t list; +} ump_session_memory_list_element; + + + +/* + * Device specific data, created when device driver is loaded, and then kept as the global variable device. + */ +typedef struct ump_dev +{ + _mali_osk_lock_t * secure_id_map_lock; + ump_descriptor_mapping * secure_id_map; + ump_memory_backend * backend; +} ump_dev; + + + +extern int ump_debug_level; +extern struct ump_dev device; + +_mali_osk_errcode_t ump_kernel_constructor(void); +void ump_kernel_destructor(void); +int map_errcode( _mali_osk_errcode_t err ); + +/** + * variables from user space cannot be dereferenced from kernel space; tagging them + * with __user allows the GCC compiler to generate a warning. Other compilers may + * not support this so we define it here as an empty macro if the compiler doesn't + * define it. + */ +#ifndef __user +#define __user +#endif + +#endif /* __UMP_KERNEL_COMMON_H__ */ diff --git a/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_descriptor_mapping.c b/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_descriptor_mapping.c new file mode 100644 index 0000000..2531f80 --- /dev/null +++ b/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_descriptor_mapping.c @@ -0,0 +1,166 @@ +/* + * Copyright (C) 2010-2011 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_bitops.h" +#include "ump_kernel_common.h" +#include "ump_kernel_descriptor_mapping.h" + +#define MALI_PAD_INT(x) (((x) + (BITS_PER_LONG - 1)) & ~(BITS_PER_LONG - 1)) + +/** + * Allocate a descriptor table capable of holding 'count' mappings + * @param count Number of mappings in the table + * @return Pointer to a new table, NULL on error + */ +static ump_descriptor_table * descriptor_table_alloc(int count); + +/** + * Free a descriptor table + * @param table The table to free + */ +static void descriptor_table_free(ump_descriptor_table * table); + +ump_descriptor_mapping * ump_descriptor_mapping_create(int init_entries, int max_entries) +{ + ump_descriptor_mapping * map = _mali_osk_calloc(1, sizeof(ump_descriptor_mapping) ); + + init_entries = MALI_PAD_INT(init_entries); + max_entries = MALI_PAD_INT(max_entries); + + if (NULL != map) + { + map->table = descriptor_table_alloc(init_entries); + if (NULL != map->table) + { + map->lock = _mali_osk_lock_init(_MALI_OSK_LOCKFLAG_NONINTERRUPTABLE | _MALI_OSK_LOCKFLAG_READERWRITER, 0 , 0); + if ( NULL != map->lock ) + { + _mali_osk_set_nonatomic_bit(0, map->table->usage); /* reserve bit 0 to prevent NULL/zero logic to kick in */ + map->max_nr_mappings_allowed = max_entries; + map->current_nr_mappings = init_entries; + return map; + } + descriptor_table_free(map->table); + } + _mali_osk_free(map); + } + return NULL; +} + +void ump_descriptor_mapping_destroy(ump_descriptor_mapping * map) +{ + descriptor_table_free(map->table); + _mali_osk_lock_term( map->lock ); + _mali_osk_free(map); +} + +int ump_descriptor_mapping_allocate_mapping(ump_descriptor_mapping * map, void * target) +{ + int descriptor = -1;/*-EFAULT;*/ + _mali_osk_lock_wait(map->lock, _MALI_OSK_LOCKMODE_RW); + descriptor = _mali_osk_find_first_zero_bit(map->table->usage, map->current_nr_mappings); + if (descriptor == map->current_nr_mappings) + { + int nr_mappings_new; + /* no free descriptor, try to expand the table */ + ump_descriptor_table * new_table; + ump_descriptor_table * old_table = map->table; + nr_mappings_new= map->current_nr_mappings *2; + + if (map->current_nr_mappings >= map->max_nr_mappings_allowed) + { + descriptor = -1; + goto unlock_and_exit; + } + + new_table = descriptor_table_alloc(nr_mappings_new); + if (NULL == new_table) + { + descriptor = -1; + goto unlock_and_exit; + } + + _mali_osk_memcpy(new_table->usage, old_table->usage, (sizeof(unsigned long)*map->current_nr_mappings) / BITS_PER_LONG); + _mali_osk_memcpy(new_table->mappings, old_table->mappings, map->current_nr_mappings * sizeof(void*)); + map->table = new_table; + map->current_nr_mappings = nr_mappings_new; + descriptor_table_free(old_table); + } + + /* we have found a valid descriptor, set the value and usage bit */ + _mali_osk_set_nonatomic_bit(descriptor, map->table->usage); + map->table->mappings[descriptor] = target; + +unlock_and_exit: + _mali_osk_lock_signal(map->lock, _MALI_OSK_LOCKMODE_RW); + return descriptor; +} + +int ump_descriptor_mapping_get(ump_descriptor_mapping * map, int descriptor, void** target) +{ + int result = -1;/*-EFAULT;*/ + DEBUG_ASSERT(map); + _mali_osk_lock_wait(map->lock, _MALI_OSK_LOCKMODE_RO); + if ( (descriptor >= 0) && (descriptor < map->current_nr_mappings) && _mali_osk_test_bit(descriptor, map->table->usage) ) + { + *target = map->table->mappings[descriptor]; + result = 0; + } + else *target = NULL; + _mali_osk_lock_signal(map->lock, _MALI_OSK_LOCKMODE_RO); + return result; +} + +int ump_descriptor_mapping_set(ump_descriptor_mapping * map, int descriptor, void * target) +{ + int result = -1;/*-EFAULT;*/ + _mali_osk_lock_wait(map->lock, _MALI_OSK_LOCKMODE_RO); + if ( (descriptor >= 0) && (descriptor < map->current_nr_mappings) && _mali_osk_test_bit(descriptor, map->table->usage) ) + { + map->table->mappings[descriptor] = target; + result = 0; + } + _mali_osk_lock_signal(map->lock, _MALI_OSK_LOCKMODE_RO); + return result; +} + +void ump_descriptor_mapping_free(ump_descriptor_mapping * map, int descriptor) +{ + _mali_osk_lock_wait(map->lock, _MALI_OSK_LOCKMODE_RW); + if ( (descriptor >= 0) && (descriptor < map->current_nr_mappings) && _mali_osk_test_bit(descriptor, map->table->usage) ) + { + map->table->mappings[descriptor] = NULL; + _mali_osk_clear_nonatomic_bit(descriptor, map->table->usage); + } + _mali_osk_lock_signal(map->lock, _MALI_OSK_LOCKMODE_RW); +} + +static ump_descriptor_table * descriptor_table_alloc(int count) +{ + ump_descriptor_table * table; + + table = _mali_osk_calloc(1, sizeof(ump_descriptor_table) + ((sizeof(unsigned long) * count)/BITS_PER_LONG) + (sizeof(void*) * count) ); + + if (NULL != table) + { + table->usage = (u32*)((u8*)table + sizeof(ump_descriptor_table)); + table->mappings = (void**)((u8*)table + sizeof(ump_descriptor_table) + ((sizeof(unsigned long) * count)/BITS_PER_LONG)); + } + + return table; +} + +static void descriptor_table_free(ump_descriptor_table * table) +{ + _mali_osk_free(table); +} + diff --git a/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_descriptor_mapping.h b/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_descriptor_mapping.h new file mode 100644 index 0000000..92bbe54 --- /dev/null +++ b/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_descriptor_mapping.h @@ -0,0 +1,91 @@ +/* + * Copyright (C) 2010-2011 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 ump_kernel_descriptor_mapping.h + */ + +#ifndef __UMP_KERNEL_DESCRIPTOR_MAPPING_H__ +#define __UMP_KERNEL_DESCRIPTOR_MAPPING_H__ + +#include "mali_osk.h" + +/** + * The actual descriptor mapping table, never directly accessed by clients + */ +typedef struct ump_descriptor_table +{ + u32 * usage; /**< Pointer to bitpattern indicating if a descriptor is valid/used or not */ + void** mappings; /**< Array of the pointers the descriptors map to */ +} ump_descriptor_table; + +/** + * The descriptor mapping object + * Provides a separate namespace where we can map an integer to a pointer + */ +typedef struct ump_descriptor_mapping +{ + _mali_osk_lock_t *lock; /**< Lock protecting access to the mapping object */ + int max_nr_mappings_allowed; /**< Max number of mappings to support in this namespace */ + int current_nr_mappings; /**< Current number of possible mappings */ + ump_descriptor_table * table; /**< Pointer to the current mapping table */ +} ump_descriptor_mapping; + +/** + * Create a descriptor mapping object + * Create a descriptor mapping capable of holding init_entries growable to max_entries + * @param init_entries Number of entries to preallocate memory for + * @param max_entries Number of entries to max support + * @return Pointer to a descriptor mapping object, NULL on failure + */ +ump_descriptor_mapping * ump_descriptor_mapping_create(int init_entries, int max_entries); + +/** + * Destroy a descriptor mapping object + * @param map The map to free + */ +void ump_descriptor_mapping_destroy(ump_descriptor_mapping * map); + +/** + * Allocate a new mapping entry (descriptor ID) + * Allocates a new entry in the map. + * @param map The map to allocate a new entry in + * @param target The value to map to + * @return The descriptor allocated, a negative value on error + */ +int ump_descriptor_mapping_allocate_mapping(ump_descriptor_mapping * map, void * target); + +/** + * Get the value mapped to by a descriptor ID + * @param map The map to lookup the descriptor id in + * @param descriptor The descriptor ID to lookup + * @param target Pointer to a pointer which will receive the stored value + * @return 0 on successful lookup, negative on error + */ +int ump_descriptor_mapping_get(ump_descriptor_mapping * map, int descriptor, void** target); + +/** + * Set the value mapped to by a descriptor ID + * @param map The map to lookup the descriptor id in + * @param descriptor The descriptor ID to lookup + * @param target Pointer to replace the current value with + * @return 0 on successful lookup, negative on error + */ +int ump_descriptor_mapping_set(ump_descriptor_mapping * map, int descriptor, void * target); + +/** + * Free the descriptor ID + * For the descriptor to be reused it has to be freed + * @param map The map to free the descriptor from + * @param descriptor The descriptor ID to free + */ +void ump_descriptor_mapping_free(ump_descriptor_mapping * map, int descriptor); + +#endif /* __UMP_KERNEL_DESCRIPTOR_MAPPING_H__ */ diff --git a/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_memory_backend.h b/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_memory_backend.h new file mode 100644 index 0000000..8b11452 --- /dev/null +++ b/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_memory_backend.h @@ -0,0 +1,53 @@ +/* + * Copyright (C) 2010-2011 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 ump_kernel_memory_mapping.h + */ + +#ifndef __UMP_KERNEL_MEMORY_BACKEND_H__ +#define __UMP_KERNEL_MEMORY_BACKEND_H__ + +#include "ump_kernel_interface.h" +#include "ump_kernel_types.h" + + +typedef struct ump_memory_allocation +{ + void * phys_addr; + void * mapping; + unsigned long size; + ump_dd_handle handle; + void * process_mapping_info; + u32 cookie; /**< necessary on some U/K interface implementations */ + struct ump_session_data * ump_session; /**< Session that this allocation belongs to */ + _mali_osk_list_t list; /**< List for linking together memory allocations into the session's memory head */ + u32 is_cached; +} ump_memory_allocation; + +typedef struct ump_memory_backend +{ + int (*allocate)(void* ctx, ump_dd_mem * descriptor); + void (*release)(void* ctx, ump_dd_mem * descriptor); + void (*shutdown)(struct ump_memory_backend * backend); + u32 (*stat)(struct ump_memory_backend *backend); + int (*pre_allocate_physical_check)(void *ctx, u32 size); + u32 (*adjust_to_mali_phys)(void *ctx, u32 cpu_phys); + /* MALI_SEC */ + void *(*get)(ump_dd_mem *mem, void *args); + void (*set)(ump_dd_mem *mem, void *args); + void * ctx; +} ump_memory_backend; + +ump_memory_backend * ump_memory_backend_create ( void ); +void ump_memory_backend_destroy( void ); + +#endif /*__UMP_KERNEL_MEMORY_BACKEND_H__ */ + diff --git a/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_ref_drv.c b/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_ref_drv.c new file mode 100644 index 0000000..6335bf6 --- /dev/null +++ b/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_ref_drv.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 "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; +} + +/* MALI_SEC */ +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; +} diff --git a/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_types.h b/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_types.h new file mode 100644 index 0000000..19a9755 --- /dev/null +++ b/drivers/gpu/mali400/r3p2/ump/common/ump_kernel_types.h @@ -0,0 +1,53 @@ +/* + * 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 __UMP_KERNEL_TYPES_H__ +#define __UMP_KERNEL_TYPES_H__ + +#include "ump_kernel_interface.h" +#include "mali_osk.h" + + +typedef enum +{ + UMP_USED_BY_CPU = 0, + UMP_USED_BY_MALI = 1, + UMP_USED_BY_UNKNOWN_DEVICE= 100, +} ump_hw_usage; + +typedef enum +{ + UMP_NOT_LOCKED = 0, + UMP_READ = 1, + UMP_READ_WRITE = 3, +} ump_lock_usage; + + +/* + * This struct is what is "behind" a ump_dd_handle + */ +typedef struct ump_dd_mem +{ + ump_secure_id secure_id; + _mali_osk_atomic_t ref_count; + unsigned long size_bytes; + unsigned long nr_blocks; + ump_dd_physical_block * block_array; + void (*release_func)(void * ctx, struct ump_dd_mem * descriptor); + void * ctx; + void * backend_info; + int is_cached; + ump_hw_usage hw_device; + ump_lock_usage lock_usage; +} ump_dd_mem; + + + +#endif /* __UMP_KERNEL_TYPES_H__ */ diff --git a/drivers/gpu/mali400/r3p2/ump/common/ump_osk.h b/drivers/gpu/mali400/r3p2/ump/common/ump_osk.h new file mode 100644 index 0000000..d9d182a --- /dev/null +++ b/drivers/gpu/mali400/r3p2/ump/common/ump_osk.h @@ -0,0 +1,52 @@ +/* + * 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 ump_osk.h + * Defines the OS abstraction layer for the UMP kernel device driver (OSK) + */ + +#ifndef __UMP_OSK_H__ +#define __UMP_OSK_H__ + +#include <mali_osk.h> +#include <ump_kernel_memory_backend.h> +#include "ump_uk_types.h" +#include "ump_kernel_common.h" + +#ifdef __cplusplus +extern "C" +{ +#endif + +_mali_osk_errcode_t _ump_osk_init( void ); + +_mali_osk_errcode_t _ump_osk_term( void ); + +int _ump_osk_atomic_inc_and_read( _mali_osk_atomic_t *atom ); + +int _ump_osk_atomic_dec_and_read( _mali_osk_atomic_t *atom ); + +_mali_osk_errcode_t _ump_osk_mem_mapregion_init( ump_memory_allocation *descriptor ); + +_mali_osk_errcode_t _ump_osk_mem_mapregion_map( ump_memory_allocation * descriptor, u32 offset, u32 * phys_addr, unsigned long size ); + +void _ump_osk_mem_mapregion_term( ump_memory_allocation * descriptor ); + +void _ump_osk_msync( ump_dd_mem * mem, void * virt, u32 offset, u32 size, ump_uk_msync_op op, ump_session_data * session_data ); + +/* MALI_SEC */ +void _ump_osk_mem_mapregion_get( ump_dd_mem ** mem, unsigned long vaddr); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/drivers/gpu/mali400/r3p2/ump/common/ump_ukk.h b/drivers/gpu/mali400/r3p2/ump/common/ump_ukk.h new file mode 100644 index 0000000..56e4be3 --- /dev/null +++ b/drivers/gpu/mali400/r3p2/ump/common/ump_ukk.h @@ -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 ump_ukk.h + * Defines the kernel-side interface of the user-kernel interface + */ + +#ifndef __UMP_UKK_H__ +#define __UMP_UKK_H__ + +#include "mali_osk.h" +#include "ump_uk_types.h" + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +_mali_osk_errcode_t _ump_ukk_open( void** context ); + +_mali_osk_errcode_t _ump_ukk_close( void** context ); + +_mali_osk_errcode_t _ump_ukk_allocate( _ump_uk_allocate_s *user_interaction ); + +_mali_osk_errcode_t _ump_ukk_release( _ump_uk_release_s *release_info ); + +_mali_osk_errcode_t _ump_ukk_size_get( _ump_uk_size_get_s *user_interaction ); + +_mali_osk_errcode_t _ump_ukk_map_mem( _ump_uk_map_mem_s *args ); + +_mali_osk_errcode_t _ump_uku_get_api_version( _ump_uk_api_version_s *args ); + +void _ump_ukk_unmap_mem( _ump_uk_unmap_mem_s *args ); + +void _ump_ukk_msync( _ump_uk_msync_s *args ); + +void _ump_ukk_cache_operations_control(_ump_uk_cache_operations_control_s* args); + +void _ump_ukk_switch_hw_usage(_ump_uk_switch_hw_usage_s *args ); + +void _ump_ukk_lock(_ump_uk_lock_s *args ); + +void _ump_ukk_unlock(_ump_uk_unlock_s *args ); + +u32 _ump_ukk_report_memory_usage( void ); + +#ifdef __cplusplus +} +#endif + +#endif /* __UMP_UKK_H__ */ |