/* session->memory_lock must be held when calling this function */ static void mali_mem_release(mali_mem_allocation *descriptor) { MALI_DEBUG_ASSERT_POINTER(descriptor); MALI_DEBUG_ASSERT_LOCK_HELD(descriptor->session->memory_lock); MALI_DEBUG_ASSERT(MALI_MEM_ALLOCATION_VALID_MAGIC == descriptor->magic); switch (descriptor->type) { case MALI_MEM_OS: mali_mem_os_release(descriptor); break; case MALI_MEM_DMA_BUF: #if defined(CONFIG_DMA_SHARED_BUFFER) mali_mem_dma_buf_release(descriptor); #endif break; case MALI_MEM_UMP: #if defined(CONFIG_MALI400_UMP) mali_mem_ump_release(descriptor); #endif break; case MALI_MEM_EXTERNAL: mali_mem_external_release(descriptor); break; case MALI_MEM_BLOCK: mali_mem_block_release(descriptor); break; default: MALI_DEBUG_PRINT(1, ("mem type %d is not in the mali_mem_type enum.\n", descriptor->type)); break; } }
_mali_osk_errcode_t _mali_ukk_unmap_external_mem( _mali_uk_unmap_external_mem_s *args ) { mali_mem_allocation * descriptor; void* old_value; struct mali_session_data *session; MALI_DEBUG_ASSERT_POINTER(args); MALI_CHECK_NON_NULL(args->ctx, _MALI_OSK_ERR_INVALID_ARGS); session = (struct mali_session_data *)args->ctx; MALI_CHECK_NON_NULL(session, _MALI_OSK_ERR_INVALID_ARGS); 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 unmap external memory\n", args->cookie)); MALI_ERROR(_MALI_OSK_ERR_FAULT); } old_value = mali_descriptor_mapping_free(session->descriptor_mapping, args->cookie); if (NULL != old_value) { _mali_osk_mutex_wait(session->memory_lock); mali_mem_external_release(descriptor); _mali_osk_mutex_signal(session->memory_lock); mali_mem_descriptor_destroy(descriptor); } MALI_SUCCESS; }
void mali_memory_unbind_ext_mem(mali_mem_backend *mem_backend) { MALI_DEBUG_ASSERT_POINTER(mem_backend); mali_mem_external_release(mem_backend); }
_mali_osk_errcode_t _mali_ukk_map_external_mem(_mali_uk_map_external_mem_s *args) { struct mali_session_data *session; mali_mem_allocation * descriptor; int md; _mali_osk_errcode_t err; MALI_DEBUG_ASSERT_POINTER(args); MALI_CHECK_NON_NULL(args->ctx, _MALI_OSK_ERR_INVALID_ARGS); session = (struct mali_session_data *)args->ctx; MALI_CHECK_NON_NULL(session, _MALI_OSK_ERR_INVALID_ARGS); /* check arguments */ /* NULL might be a valid Mali address */ if (! args->size) MALI_ERROR(_MALI_OSK_ERR_INVALID_ARGS); /* size must be a multiple of the system page size */ if (args->size % _MALI_OSK_MALI_PAGE_SIZE) MALI_ERROR(_MALI_OSK_ERR_INVALID_ARGS); MALI_DEBUG_PRINT(3, ("Requested to map physical memory 0x%x-0x%x into virtual memory 0x%x\n", (void*)args->phys_addr, (void*)(args->phys_addr + args->size -1), (void*)args->mali_address) ); /* Validate the mali physical range */ if (_MALI_OSK_ERR_OK != mali_mem_validation_check(args->phys_addr, args->size)) { return _MALI_OSK_ERR_FAULT; } descriptor = mali_mem_descriptor_create(session, MALI_MEM_EXTERNAL); if (NULL == descriptor) MALI_ERROR(_MALI_OSK_ERR_NOMEM); descriptor->mali_mapping.addr = args->mali_address; descriptor->size = args->size; if (args->flags & _MALI_MAP_EXTERNAL_MAP_GUARD_PAGE) { descriptor->flags = MALI_MEM_FLAG_MALI_GUARD_PAGE; } _mali_osk_mutex_wait(session->memory_lock); { u32 virt = descriptor->mali_mapping.addr; u32 phys = args->phys_addr; u32 size = args->size; err = mali_mem_mali_map_prepare(descriptor); if (_MALI_OSK_ERR_OK != err) { _mali_osk_mutex_signal(session->memory_lock); mali_mem_descriptor_destroy(descriptor); return _MALI_OSK_ERR_NOMEM; } mali_mmu_pagedir_update(session->page_directory, virt, phys, size, MALI_MMU_FLAGS_DEFAULT); if (descriptor->flags & MALI_MEM_FLAG_MALI_GUARD_PAGE) { mali_mmu_pagedir_update(session->page_directory, virt + size, phys, _MALI_OSK_MALI_PAGE_SIZE, MALI_MMU_FLAGS_DEFAULT); } } _mali_osk_mutex_signal(session->memory_lock); if (_MALI_OSK_ERR_OK != mali_descriptor_mapping_allocate_mapping(session->descriptor_mapping, descriptor, &md)) { _mali_osk_mutex_wait(session->memory_lock); mali_mem_external_release(descriptor); _mali_osk_mutex_signal(session->memory_lock); mali_mem_descriptor_destroy(descriptor); MALI_ERROR(_MALI_OSK_ERR_FAULT); } args->cookie = md; MALI_SUCCESS; }