/**
* function@_mali_ukk_mem_allocate - allocate mali memory
*/
_mali_osk_errcode_t _mali_ukk_mem_allocate(_mali_uk_alloc_mem_s *args)
{
struct mali_session_data *session = (struct mali_session_data *)(uintptr_t)args->ctx;
mali_mem_backend *mem_backend = NULL;
_mali_osk_errcode_t ret = _MALI_OSK_ERR_FAULT;
int retval = 0;
mali_mem_allocation *mali_allocation = NULL;
struct mali_vma_node *mali_vma_node = NULL;
MALI_DEBUG_PRINT(4, (" _mali_ukk_mem_allocate, vaddr=0x%x, size =0x%x! \n", args->gpu_vaddr, args->psize));
/* Check if the address is allocated
*/
mali_vma_node = mali_vma_offset_search(&session->allocation_mgr, args->gpu_vaddr, 0);
if (unlikely(mali_vma_node)) {
MALI_DEBUG_ASSERT(0);
return _MALI_OSK_ERR_FAULT;
}
/**
*create mali memory allocation
*/
mali_allocation = mali_mem_allocation_struct_create(session);
if (mali_allocation == NULL) {
MALI_DEBUG_PRINT(1, ("_mali_ukk_mem_allocate: Failed to create allocation struct! \n"));
return _MALI_OSK_ERR_NOMEM;
}
mali_allocation->psize = args->psize;
mali_allocation->vsize = args->vsize;
/* MALI_MEM_OS if need to support mem resize,
* or MALI_MEM_BLOCK if have dedicated memory,
* or MALI_MEM_OS,
* or MALI_MEM_SWAP.
*/
if (args->flags & _MALI_MEMORY_ALLOCATE_SWAPPABLE) {
mali_allocation->type = MALI_MEM_SWAP;
} else if (args->flags & _MALI_MEMORY_ALLOCATE_RESIZEABLE) {
mali_allocation->type = MALI_MEM_OS;
mali_allocation->flags |= MALI_MEM_FLAG_CAN_RESIZE;
} else if (MALI_TRUE == mali_memory_have_dedicated_memory()) {
mali_allocation->type = MALI_MEM_BLOCK;
} else {
mali_allocation->type = MALI_MEM_OS;
}
/**
*add allocation node to RB tree for index
*/
mali_allocation->mali_vma_node.vm_node.start = args->gpu_vaddr;
mali_allocation->mali_vma_node.vm_node.size = args->vsize;
mali_vma_offset_add(&session->allocation_mgr, &mali_allocation->mali_vma_node);
mali_allocation->backend_handle = mali_mem_backend_struct_create(&mem_backend, args->psize);
if (mali_allocation->backend_handle < 0) {
ret = _MALI_OSK_ERR_NOMEM;
MALI_DEBUG_PRINT(1, ("mali_allocation->backend_handle < 0! \n"));
goto failed_alloc_backend;
}
mem_backend->mali_allocation = mali_allocation;
mem_backend->type = mali_allocation->type;
mali_allocation->mali_mapping.addr = args->gpu_vaddr;
/* set gpu mmu propery */
_mali_memory_gpu_map_property_set(&mali_allocation->mali_mapping.properties, args->flags);
/* do prepare for MALI mapping */
if (!(args->flags & _MALI_MEMORY_ALLOCATE_NO_BIND_GPU) && mali_allocation->psize > 0) {
_mali_osk_mutex_wait(session->memory_lock);
ret = mali_mem_mali_map_prepare(mali_allocation);
if (0 != ret) {
_mali_osk_mutex_signal(session->memory_lock);
goto failed_prepare_map;
}
_mali_osk_mutex_signal(session->memory_lock);
}
if (mali_allocation->psize == 0) {
mem_backend->os_mem.count = 0;
INIT_LIST_HEAD(&mem_backend->os_mem.pages);
goto done;
}
if (args->flags & _MALI_MEMORY_ALLOCATE_DEFER_BIND) {
mali_allocation->flags |= _MALI_MEMORY_ALLOCATE_DEFER_BIND;
mem_backend->flags |= MALI_MEM_BACKEND_FLAG_NOT_BINDED;
/* init for defer bind backend*/
mem_backend->os_mem.count = 0;
INIT_LIST_HEAD(&mem_backend->os_mem.pages);
goto done;
}
/**
*allocate physical memory
*/
if (likely(mali_allocation->psize > 0)) {
if (mem_backend->type == MALI_MEM_OS) {
retval = mali_mem_os_alloc_pages(&mem_backend->os_mem, mem_backend->size);
} else if (mem_backend->type == MALI_MEM_BLOCK) {
/* try to allocated from BLOCK memory first, then try OS memory if failed.*/
if (mali_mem_block_alloc(&mem_backend->block_mem, mem_backend->size)) {
retval = mali_mem_os_alloc_pages(&mem_backend->os_mem, mem_backend->size);
mem_backend->type = MALI_MEM_OS;
mali_allocation->type = MALI_MEM_OS;
}
} else if (MALI_MEM_SWAP == mem_backend->type) {
retval = mali_mem_swap_alloc_pages(&mem_backend->swap_mem, mali_allocation->mali_vma_node.vm_node.size, &mem_backend->start_idx);
} else {
/* ONLY support mem_os type */
MALI_DEBUG_ASSERT(0);
}
if (retval) {
ret = _MALI_OSK_ERR_NOMEM;
MALI_DEBUG_PRINT(1, (" can't allocate enough pages! \n"));
goto failed_alloc_pages;
}
}
/**
*map to GPU side
*/
if (!(args->flags & _MALI_MEMORY_ALLOCATE_NO_BIND_GPU) && mali_allocation->psize > 0) {
_mali_osk_mutex_wait(session->memory_lock);
/* Map on Mali */
if (mem_backend->type == MALI_MEM_OS) {
ret = mali_mem_os_mali_map(&mem_backend->os_mem, session, args->gpu_vaddr, 0,
mem_backend->size / MALI_MMU_PAGE_SIZE, mali_allocation->mali_mapping.properties);
} else if (mem_backend->type == MALI_MEM_BLOCK) {
mali_mem_block_mali_map(&mem_backend->block_mem, session, args->gpu_vaddr,
mali_allocation->mali_mapping.properties);
} else if (mem_backend->type == MALI_MEM_SWAP) {
ret = mali_mem_swap_mali_map(&mem_backend->swap_mem, session, args->gpu_vaddr,
mali_allocation->mali_mapping.properties);
} else { /* unsupport type */
MALI_DEBUG_ASSERT(0);
}
_mali_osk_mutex_signal(session->memory_lock);
}
done:
if (MALI_MEM_OS == mem_backend->type) {
atomic_add(mem_backend->os_mem.count, &session->mali_mem_allocated_pages);
} else if (MALI_MEM_BLOCK == mem_backend->type) {
atomic_add(mem_backend->block_mem.count, &session->mali_mem_allocated_pages);
} else {
MALI_DEBUG_ASSERT(MALI_MEM_SWAP == mem_backend->type);
atomic_add(mem_backend->swap_mem.count, &session->mali_mem_allocated_pages);
atomic_add(mem_backend->swap_mem.count, &session->mali_mem_array[mem_backend->type]);
}
if (atomic_read(&session->mali_mem_allocated_pages) * MALI_MMU_PAGE_SIZE > session->max_mali_mem_allocated_size) {
session->max_mali_mem_allocated_size = atomic_read(&session->mali_mem_allocated_pages) * MALI_MMU_PAGE_SIZE;
}
return _MALI_OSK_ERR_OK;
failed_alloc_pages:
mali_mem_mali_map_free(session, mali_allocation->psize, mali_allocation->mali_vma_node.vm_node.start, mali_allocation->flags);
failed_prepare_map:
mali_mem_backend_struct_destory(&mem_backend, mali_allocation->backend_handle);
failed_alloc_backend:
mali_vma_offset_remove(&session->allocation_mgr, &mali_allocation->mali_vma_node);
mali_mem_allocation_struct_destory(mali_allocation);
return ret;
}
/**
* function@_mali_ukk_mem_allocate - allocate mali memory
*/
_mali_osk_errcode_t _mali_ukk_mem_allocate(_mali_uk_alloc_mem_s *args)
{
struct mali_session_data *session = (struct mali_session_data *)(uintptr_t)args->ctx;
mali_mem_backend *mem_backend = NULL;
_mali_osk_errcode_t ret = _MALI_OSK_ERR_FAULT;
int retval = 0;
mali_mem_allocation *mali_allocation = NULL;
struct mali_vma_node *mali_vma_node = NULL;
MALI_DEBUG_PRINT(4, (" _mali_ukk_mem_allocate, vaddr=0x%x, size =0x%x! \n", args->gpu_vaddr, args->psize));
/* Check if the address is allocated
* Can we trust User mode?
*/
mali_vma_node = mali_vma_offset_search(&session->allocation_mgr, args->gpu_vaddr, 0);
if (unlikely(mali_vma_node)) {
/* Not support yet */
MALI_DEBUG_ASSERT(0);
return _MALI_OSK_ERR_FAULT;
}
/**
*create mali memory allocation
*/
mali_allocation = mali_mem_allocation_struct_create(session);
if (mali_allocation == NULL) {
MALI_DEBUG_PRINT(1, ("_mali_ukk_mem_allocate: Failed to create allocation struct! \n"));
return _MALI_OSK_ERR_NOMEM;
}
mali_allocation->psize = args->psize;
mali_allocation->vsize = args->vsize;
/* check if have dedicated memory */
if (MALI_TRUE == mali_memory_have_dedicated_memory()) {
mali_allocation->type = MALI_MEM_BLOCK;
} else {
mali_allocation->type = MALI_MEM_OS;
}
/**
*add allocation node to RB tree for index
*/
mali_allocation->mali_vma_node.vm_node.start = args->gpu_vaddr;
mali_allocation->mali_vma_node.vm_node.size = args->vsize;
mali_vma_offset_add(&session->allocation_mgr, &mali_allocation->mali_vma_node);
/* check if need to allocate backend */
if (mali_allocation->psize == 0)
return _MALI_OSK_ERR_OK;
/**
*allocate physical backend & pages
*/
if (likely(mali_allocation->psize > 0)) {
mali_allocation->backend_handle = mali_mem_backend_struct_create(&mem_backend, args->psize);
if (mali_allocation->backend_handle < 0) {
ret = _MALI_OSK_ERR_NOMEM;
MALI_DEBUG_PRINT(1, ("mali_allocation->backend_handle < 0! \n"));
goto failed_alloc_backend;
}
mem_backend->mali_allocation = mali_allocation;
mem_backend->type = mali_allocation->type;
if (mem_backend->type == MALI_MEM_OS) {
retval = mali_mem_os_alloc_pages(&mem_backend->os_mem, mem_backend->size);
} else if (mem_backend->type == MALI_MEM_BLOCK) {
/* try to allocated from BLOCK memory first, then try OS memory if failed.*/
if (mali_mem_block_alloc(&mem_backend->block_mem, mem_backend->size)) {
retval = mali_mem_os_alloc_pages(&mem_backend->os_mem, mem_backend->size);
mem_backend->type = MALI_MEM_OS;
mali_allocation->type = MALI_MEM_OS;
}
} else {
/* ONLY support mem_os type */
MALI_DEBUG_ASSERT(0);
}
if (retval) {
ret = _MALI_OSK_ERR_NOMEM;
MALI_DEBUG_PRINT(1, (" can't allocate enough pages! \n"));
goto failed_alloc_pages;
}
}
/**
*map to GPU side
*/
mali_allocation->mali_mapping.addr = args->gpu_vaddr;
/* set gpu mmu propery */
_mali_memory_gpu_map_property_set(&mali_allocation->mali_mapping.properties, args->flags);
if (!(args->flags & _MALI_MEMORY_ALLOCATE_NO_BIND_GPU) && mali_allocation->psize > 0) {
_mali_osk_mutex_wait(session->memory_lock);
/* Map on Mali */
ret = mali_mem_mali_map_prepare(mali_allocation);
if (0 != ret) {
MALI_DEBUG_PRINT(1, (" prepare map fail! \n"));
goto failed_gpu_map;
}
/* only support os memory type now */
if (mem_backend->type == MALI_MEM_OS) {
mali_mem_os_mali_map(mem_backend, args->gpu_vaddr,
mali_allocation->mali_mapping.properties);
} else if (mem_backend->type == MALI_MEM_BLOCK) {
mali_mem_block_mali_map(&mem_backend->block_mem, session, args->gpu_vaddr,
mali_allocation->mali_mapping.properties);
} else {
/* Not support yet */
MALI_DEBUG_ASSERT(0);
}
session->mali_mem_array[mem_backend->type] += mem_backend->size;
if (session->mali_mem_array[MALI_MEM_OS] + session->mali_mem_array[MALI_MEM_BLOCK] > session->max_mali_mem_allocated) {
session->max_mali_mem_allocated = session->mali_mem_array[MALI_MEM_OS] + session->mali_mem_array[MALI_MEM_BLOCK];
}
_mali_osk_mutex_signal(session->memory_lock);
}
return _MALI_OSK_ERR_OK;
failed_gpu_map:
_mali_osk_mutex_signal(session->memory_lock);
if (mem_backend->type == MALI_MEM_OS) {
mali_mem_os_free(&mem_backend->os_mem);
} else {
mali_mem_block_free(&mem_backend->block_mem);
}
failed_alloc_pages:
mali_mem_backend_struct_destory(&mem_backend, mali_allocation->backend_handle);
failed_alloc_backend:
mali_vma_offset_remove(&session->allocation_mgr, &mali_allocation->mali_vma_node);
mali_mem_allocation_struct_destory(mali_allocation);
return ret;
}
mali_mem_allocation *mali_mem_block_alloc(u32 mali_addr, u32 size, struct vm_area_struct *vma, struct mali_session_data *session)
{
_mali_osk_errcode_t err;
mali_mem_allocation *descriptor;
block_allocator *info;
u32 left;
block_info *last_allocated = NULL;
block_allocator_allocation *ret_allocation;
u32 offset = 0;
size = ALIGN(size, MALI_BLOCK_SIZE);
info = mali_mem_block_gobal_allocator;
if (NULL == info) return NULL;
left = size;
MALI_DEBUG_ASSERT(0 != left);
descriptor = mali_mem_descriptor_create(session, MALI_MEM_BLOCK);
if (NULL == descriptor) {
return NULL;
}
descriptor->mali_mapping.addr = mali_addr;
descriptor->size = size;
descriptor->cpu_mapping.addr = (void __user *)vma->vm_start;
descriptor->cpu_mapping.ref = 1;
if (VM_SHARED == (VM_SHARED & vma->vm_flags)) {
descriptor->mali_mapping.properties = MALI_MMU_FLAGS_DEFAULT;
} else {
/* Cached Mali memory mapping */
descriptor->mali_mapping.properties = MALI_MMU_FLAGS_FORCE_GP_READ_ALLOCATE;
vma->vm_flags |= VM_SHARED;
}
ret_allocation = &descriptor->block_mem.mem;
ret_allocation->mapping_length = 0;
_mali_osk_mutex_wait(session->memory_lock);
mutex_lock(&info->mutex);
if (left > (info->free_blocks * MALI_BLOCK_SIZE)) {
MALI_DEBUG_PRINT(2, ("Mali block allocator: not enough free blocks to service allocation (%u)\n", left));
mutex_unlock(&info->mutex);
_mali_osk_mutex_signal(session->memory_lock);
mali_mem_descriptor_destroy(descriptor);
return NULL;
}
err = mali_mem_mali_map_prepare(descriptor);
if (_MALI_OSK_ERR_OK != err) {
mutex_unlock(&info->mutex);
_mali_osk_mutex_signal(session->memory_lock);
mali_mem_descriptor_destroy(descriptor);
return NULL;
}
while ((left > 0) && (info->first_free)) {
block_info *block;
u32 phys_addr;
u32 current_mapping_size;
block = info->first_free;
info->first_free = info->first_free->next;
block->next = last_allocated;
last_allocated = block;
phys_addr = get_phys(info, block);
if (MALI_BLOCK_SIZE < left) {
current_mapping_size = MALI_BLOCK_SIZE;
} else {
current_mapping_size = left;
}
mali_mem_block_mali_map(descriptor, phys_addr, mali_addr + offset, current_mapping_size);
if (mali_mem_block_cpu_map(descriptor, vma, phys_addr, offset, current_mapping_size, info->cpu_usage_adjust)) {
/* release all memory back to the pool */
while (last_allocated) {
/* This relinks every block we've just allocated back into the free-list */
block = last_allocated->next;
last_allocated->next = info->first_free;
info->first_free = last_allocated;
last_allocated = block;
}
mutex_unlock(&info->mutex);
_mali_osk_mutex_signal(session->memory_lock);
mali_mem_mali_map_free(descriptor);
mali_mem_descriptor_destroy(descriptor);
return NULL;
}
left -= current_mapping_size;
offset += current_mapping_size;
ret_allocation->mapping_length += current_mapping_size;
--info->free_blocks;
}
mutex_unlock(&info->mutex);
_mali_osk_mutex_signal(session->memory_lock);
MALI_DEBUG_ASSERT(0 == left);
/* Record all the information about this allocation */
ret_allocation->last_allocated = last_allocated;
ret_allocation->info = info;
return descriptor;
}
