diff options
Diffstat (limited to 'drivers/gpu/arm/utgard/linux/mali_memory_manager.c')
| -rw-r--r-- | drivers/gpu/arm/utgard/linux/mali_memory_manager.c | 965 |
1 files changed, 965 insertions, 0 deletions
diff --git a/drivers/gpu/arm/utgard/linux/mali_memory_manager.c b/drivers/gpu/arm/utgard/linux/mali_memory_manager.c new file mode 100644 index 000000000000..55e2c092d597 --- /dev/null +++ b/drivers/gpu/arm/utgard/linux/mali_memory_manager.c @@ -0,0 +1,965 @@ +/* + * Copyright (C) 2013-2015 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/list.h> +#include <linux/mm.h> +#include <linux/mm_types.h> +#include <linux/fs.h> +#include <linux/dma-mapping.h> +#include <linux/slab.h> +#include <linux/version.h> +#include <linux/sched.h> + +#include <linux/platform_device.h> +#if defined(CONFIG_DMA_SHARED_BUFFER) +#include <linux/dma-buf.h> +#endif +#include <linux/idr.h> + +#include "mali_osk.h" +#include "mali_osk_mali.h" +#include "mali_kernel_linux.h" +#include "mali_scheduler.h" +#include "mali_memory.h" +#include "mali_memory_os_alloc.h" +#if defined(CONFIG_DMA_SHARED_BUFFER) +#include "mali_memory_dma_buf.h" +#endif +#if defined(CONFIG_MALI400_UMP) +#include "mali_memory_ump.h" +#endif +#include "mali_memory_manager.h" +#include "mali_memory_virtual.h" +#include "mali_memory_util.h" +#include "mali_memory_external.h" +#include "mali_memory_cow.h" +#include "mali_memory_block_alloc.h" +#include "mali_ukk.h" +#include "mali_memory_swap_alloc.h" + +/* +* New memory system interface +*/ + +/*inti idr for backend memory */ +struct idr mali_backend_idr; +struct mutex mali_idr_mutex; + +/* init allocation manager */ +int mali_memory_manager_init(struct mali_allocation_manager *mgr) +{ + /* init Locks */ + rwlock_init(&mgr->vm_lock); + mutex_init(&mgr->list_mutex); + + /* init link */ + INIT_LIST_HEAD(&mgr->head); + + /* init RB tree */ + mgr->allocation_mgr_rb = RB_ROOT; + mgr->mali_allocation_num = 0; + return 0; +} + +/* Deinit allocation manager +* Do some check for debug +*/ +void mali_memory_manager_uninit(struct mali_allocation_manager *mgr) +{ + /* check RB tree is empty */ + MALI_DEBUG_ASSERT(((void *)(mgr->allocation_mgr_rb.rb_node) == (void *)rb_last(&mgr->allocation_mgr_rb))); + /* check allocation List */ + MALI_DEBUG_ASSERT(list_empty(&mgr->head)); +} + +/* Prepare memory descriptor */ +static mali_mem_allocation *mali_mem_allocation_struct_create(struct mali_session_data *session) +{ + mali_mem_allocation *mali_allocation; + + /* Allocate memory */ + mali_allocation = (mali_mem_allocation *)kzalloc(sizeof(mali_mem_allocation), GFP_KERNEL); + if (NULL == mali_allocation) { + MALI_DEBUG_PRINT(1, ("mali_mem_allocation_struct_create: descriptor was NULL\n")); + return NULL; + } + + MALI_DEBUG_CODE(mali_allocation->magic = MALI_MEM_ALLOCATION_VALID_MAGIC); + + /* do init */ + mali_allocation->flags = 0; + mali_allocation->session = session; + + INIT_LIST_HEAD(&mali_allocation->list); + _mali_osk_atomic_init(&mali_allocation->mem_alloc_refcount, 1); + + /** + *add to session list + */ + mutex_lock(&session->allocation_mgr.list_mutex); + list_add_tail(&mali_allocation->list, &session->allocation_mgr.head); + session->allocation_mgr.mali_allocation_num++; + mutex_unlock(&session->allocation_mgr.list_mutex); + + return mali_allocation; +} + +void mali_mem_allocation_struct_destory(mali_mem_allocation *alloc) +{ + MALI_DEBUG_ASSERT_POINTER(alloc); + MALI_DEBUG_ASSERT_POINTER(alloc->session); + mutex_lock(&alloc->session->allocation_mgr.list_mutex); + list_del(&alloc->list); + alloc->session->allocation_mgr.mali_allocation_num--; + mutex_unlock(&alloc->session->allocation_mgr.list_mutex); + + kfree(alloc); +} + +int mali_mem_backend_struct_create(mali_mem_backend **backend, u32 psize) +{ + mali_mem_backend *mem_backend = NULL; + s32 ret = -ENOSPC; + s32 index = -1; + *backend = (mali_mem_backend *)kzalloc(sizeof(mali_mem_backend), GFP_KERNEL); + if (NULL == *backend) { + MALI_DEBUG_PRINT(1, ("mali_mem_backend_struct_create: backend descriptor was NULL\n")); + return -1; + } + mem_backend = *backend; + mem_backend->size = psize; + mutex_init(&mem_backend->mutex); + INIT_LIST_HEAD(&mem_backend->list); + mem_backend->using_count = 0; + + + /* link backend with id */ +#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0) +again: + if (!idr_pre_get(&mali_backend_idr, GFP_KERNEL)) { + kfree(mem_backend); + return -ENOMEM; + } + mutex_lock(&mali_idr_mutex); + ret = idr_get_new_above(&mali_backend_idr, mem_backend, 1, &index); + mutex_unlock(&mali_idr_mutex); + + if (-ENOSPC == ret) { + kfree(mem_backend); + return -ENOSPC; + } + if (-EAGAIN == ret) + goto again; +#else + mutex_lock(&mali_idr_mutex); + ret = idr_alloc(&mali_backend_idr, mem_backend, 1, MALI_S32_MAX, GFP_KERNEL); + mutex_unlock(&mali_idr_mutex); + index = ret; + if (ret < 0) { + MALI_DEBUG_PRINT(1, ("mali_mem_backend_struct_create: Can't allocate idr for backend! \n")); + kfree(mem_backend); + return -ENOSPC; + } +#endif + return index; +} + + +static void mali_mem_backend_struct_destory(mali_mem_backend **backend, s32 backend_handle) +{ + mali_mem_backend *mem_backend = *backend; + + mutex_lock(&mali_idr_mutex); + idr_remove(&mali_backend_idr, backend_handle); + mutex_unlock(&mali_idr_mutex); + kfree(mem_backend); + *backend = NULL; +} + +mali_mem_backend *mali_mem_backend_struct_search(struct mali_session_data *session, u32 mali_address) +{ + struct mali_vma_node *mali_vma_node = NULL; + mali_mem_backend *mem_bkend = NULL; + mali_mem_allocation *mali_alloc = NULL; + MALI_DEBUG_ASSERT_POINTER(session); + mali_vma_node = mali_vma_offset_search(&session->allocation_mgr, mali_address, 0); + if (NULL == mali_vma_node) { + MALI_DEBUG_PRINT(1, ("mali_mem_backend_struct_search:vma node was NULL\n")); + return NULL; + } + mali_alloc = container_of(mali_vma_node, struct mali_mem_allocation, mali_vma_node); + /* Get backend memory & Map on CPU */ + mutex_lock(&mali_idr_mutex); + mem_bkend = idr_find(&mali_backend_idr, mali_alloc->backend_handle); + mutex_unlock(&mali_idr_mutex); + MALI_DEBUG_ASSERT(NULL != mem_bkend); + return mem_bkend; +} + +static _mali_osk_errcode_t mali_mem_resize(struct mali_session_data *session, mali_mem_backend *mem_backend, u32 physical_size) +{ + _mali_osk_errcode_t ret = _MALI_OSK_ERR_FAULT; + int retval = 0; + mali_mem_allocation *mali_allocation = NULL; + mali_mem_os_mem tmp_os_mem; + s32 change_page_count; + + MALI_DEBUG_ASSERT_POINTER(session); + MALI_DEBUG_ASSERT_POINTER(mem_backend); + MALI_DEBUG_PRINT(4, (" mali_mem_resize_memory called! \n")); + MALI_DEBUG_ASSERT(0 == physical_size % MALI_MMU_PAGE_SIZE); + + mali_allocation = mem_backend->mali_allocation; + MALI_DEBUG_ASSERT_POINTER(mali_allocation); + + MALI_DEBUG_ASSERT(MALI_MEM_FLAG_CAN_RESIZE & mali_allocation->flags); + MALI_DEBUG_ASSERT(MALI_MEM_OS == mali_allocation->type); + + mutex_lock(&mem_backend->mutex); + + /* Do resize*/ + if (physical_size > mem_backend->size) { + u32 add_size = physical_size - mem_backend->size; + + MALI_DEBUG_ASSERT(0 == add_size % MALI_MMU_PAGE_SIZE); + + /* Allocate new pages from os mem */ + retval = mali_mem_os_alloc_pages(&tmp_os_mem, add_size); + + if (retval) { + if (-ENOMEM == retval) { + ret = _MALI_OSK_ERR_NOMEM; + } else { + ret = _MALI_OSK_ERR_FAULT; + } + MALI_DEBUG_PRINT(2, ("_mali_ukk_mem_resize: memory allocation failed !\n")); + goto failed_alloc_memory; + } + + MALI_DEBUG_ASSERT(tmp_os_mem.count == add_size / MALI_MMU_PAGE_SIZE); + + /* Resize the memory of the backend */ + ret = mali_mem_os_resize_pages(&tmp_os_mem, &mem_backend->os_mem, 0, tmp_os_mem.count); + + if (ret) { + MALI_DEBUG_PRINT(2, ("_mali_ukk_mem_resize: memory resizing failed !\n")); + goto failed_resize_pages; + } + + /*Resize cpu mapping */ + if (NULL != mali_allocation->cpu_mapping.vma) { + ret = mali_mem_os_resize_cpu_map_locked(mem_backend, mali_allocation->cpu_mapping.vma, mali_allocation->cpu_mapping.vma->vm_start + mem_backend->size, add_size); + if (unlikely(ret != _MALI_OSK_ERR_OK)) { + MALI_DEBUG_PRINT(2, ("_mali_ukk_mem_resize: cpu mapping failed !\n")); + goto failed_cpu_map; + } + } + + /* Resize mali mapping */ + _mali_osk_mutex_wait(session->memory_lock); + ret = mali_mem_mali_map_resize(mali_allocation, physical_size); + + if (ret) { + MALI_DEBUG_PRINT(1, ("_mali_ukk_mem_resize: mali map resize fail !\n")); + goto failed_gpu_map; + } + + ret = mali_mem_os_mali_map(&mem_backend->os_mem, session, mali_allocation->mali_vma_node.vm_node.start, + mali_allocation->psize / MALI_MMU_PAGE_SIZE, add_size / MALI_MMU_PAGE_SIZE, mali_allocation->mali_mapping.properties); + if (ret) { + MALI_DEBUG_PRINT(2, ("_mali_ukk_mem_resize: mali mapping failed !\n")); + goto failed_gpu_map; + } + + _mali_osk_mutex_signal(session->memory_lock); + } else { + u32 dec_size, page_count; + u32 vaddr = 0; + INIT_LIST_HEAD(&tmp_os_mem.pages); + tmp_os_mem.count = 0; + + dec_size = mem_backend->size - physical_size; + MALI_DEBUG_ASSERT(0 == dec_size % MALI_MMU_PAGE_SIZE); + + page_count = dec_size / MALI_MMU_PAGE_SIZE; + vaddr = mali_allocation->mali_vma_node.vm_node.start + physical_size; + + /* Resize the memory of the backend */ + ret = mali_mem_os_resize_pages(&mem_backend->os_mem, &tmp_os_mem, physical_size / MALI_MMU_PAGE_SIZE, page_count); + + if (ret) { + MALI_DEBUG_PRINT(4, ("_mali_ukk_mem_resize: mali map resize failed!\n")); + goto failed_resize_pages; + } + + /* Resize mali map */ + _mali_osk_mutex_wait(session->memory_lock); + mali_mem_mali_map_free(session, dec_size, vaddr, mali_allocation->flags); + _mali_osk_mutex_signal(session->memory_lock); + + /* Zap cpu mapping */ + if (0 != mali_allocation->cpu_mapping.addr) { + MALI_DEBUG_ASSERT(NULL != mali_allocation->cpu_mapping.vma); + zap_vma_ptes(mali_allocation->cpu_mapping.vma, mali_allocation->cpu_mapping.vma->vm_start + physical_size, dec_size); + } + + /* Free those extra pages */ + mali_mem_os_free(&tmp_os_mem.pages, tmp_os_mem.count, MALI_FALSE); + } + + /* Resize memory allocation and memory backend */ + change_page_count = (s32)(physical_size - mem_backend->size) / MALI_MMU_PAGE_SIZE; + mali_allocation->psize = physical_size; + mem_backend->size = physical_size; + mutex_unlock(&mem_backend->mutex); + + if (change_page_count > 0) { + atomic_add(change_page_count, &session->mali_mem_allocated_pages); + 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; + } + + } else { + atomic_sub((s32)(-change_page_count), &session->mali_mem_allocated_pages); + } + + return _MALI_OSK_ERR_OK; + +failed_gpu_map: + _mali_osk_mutex_signal(session->memory_lock); +failed_cpu_map: + if (physical_size > mem_backend->size) { + mali_mem_os_resize_pages(&mem_backend->os_mem, &tmp_os_mem, mem_backend->size / MALI_MMU_PAGE_SIZE, + (physical_size - mem_backend->size) / MALI_MMU_PAGE_SIZE); + } else { + mali_mem_os_resize_pages(&tmp_os_mem, &mem_backend->os_mem, 0, tmp_os_mem.count); + } +failed_resize_pages: + if (0 != tmp_os_mem.count) + mali_mem_os_free(&tmp_os_mem.pages, tmp_os_mem.count, MALI_FALSE); +failed_alloc_memory: + + mutex_unlock(&mem_backend->mutex); + return ret; +} + + +/* Set GPU MMU properties */ +static void _mali_memory_gpu_map_property_set(u32 *properties, u32 flags) +{ + if (_MALI_MEMORY_GPU_READ_ALLOCATE & flags) { + *properties = MALI_MMU_FLAGS_FORCE_GP_READ_ALLOCATE; + } else { + *properties = MALI_MMU_FLAGS_DEFAULT; + } +} + +_mali_osk_errcode_t mali_mem_add_mem_size(struct mali_session_data *session, u32 mali_addr, u32 add_size) +{ + mali_mem_backend *mem_backend = NULL; + _mali_osk_errcode_t ret = _MALI_OSK_ERR_FAULT; + mali_mem_allocation *mali_allocation = NULL; + u32 new_physical_size; + MALI_DEBUG_ASSERT_POINTER(session); + MALI_DEBUG_ASSERT(0 == add_size % MALI_MMU_PAGE_SIZE); + + /* Get the memory backend that need to be resize. */ + mem_backend = mali_mem_backend_struct_search(session, mali_addr); + + if (NULL == mem_backend) { + MALI_DEBUG_PRINT(2, ("_mali_ukk_mem_resize: memory backend = NULL!\n")); + return ret; + } + + mali_allocation = mem_backend->mali_allocation; + + MALI_DEBUG_ASSERT_POINTER(mali_allocation); + + new_physical_size = add_size + mem_backend->size; + + if (new_physical_size > (mali_allocation->mali_vma_node.vm_node.size)) + return ret; + + MALI_DEBUG_ASSERT(new_physical_size != mem_backend->size); + + ret = mali_mem_resize(session, mem_backend, new_physical_size); + + 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 + */ + 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; +} + + +_mali_osk_errcode_t _mali_ukk_mem_free(_mali_uk_free_mem_s *args) +{ + struct mali_session_data *session = (struct mali_session_data *)(uintptr_t)args->ctx; + u32 vaddr = args->gpu_vaddr; + mali_mem_allocation *mali_alloc = NULL; + struct mali_vma_node *mali_vma_node = NULL; + + /* find mali allocation structure by vaddress*/ + mali_vma_node = mali_vma_offset_search(&session->allocation_mgr, vaddr, 0); + if (NULL == mali_vma_node) { + MALI_DEBUG_PRINT(1, ("_mali_ukk_mem_free: invalid addr: 0x%x\n", vaddr)); + return _MALI_OSK_ERR_INVALID_ARGS; + } + MALI_DEBUG_ASSERT(NULL != mali_vma_node); + mali_alloc = container_of(mali_vma_node, struct mali_mem_allocation, mali_vma_node); + + if (mali_alloc) + /* check ref_count */ + args->free_pages_nr = mali_allocation_unref(&mali_alloc); + + return _MALI_OSK_ERR_OK; +} + + +/** +* Function _mali_ukk_mem_bind -- bind a external memory to a new GPU address +* It will allocate a new mem allocation and bind external memory to it. +* Supported backend type are: +* _MALI_MEMORY_BIND_BACKEND_UMP +* _MALI_MEMORY_BIND_BACKEND_DMA_BUF +* _MALI_MEMORY_BIND_BACKEND_EXTERNAL_MEMORY +* CPU access is not supported yet +*/ +_mali_osk_errcode_t _mali_ukk_mem_bind(_mali_uk_bind_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; + mali_mem_allocation *mali_allocation = NULL; + MALI_DEBUG_PRINT(5, (" _mali_ukk_mem_bind, vaddr=0x%x, size =0x%x! \n", args->vaddr, args->size)); + + /** + * allocate mali allocation. + */ + mali_allocation = mali_mem_allocation_struct_create(session); + + if (mali_allocation == NULL) { + return _MALI_OSK_ERR_NOMEM; + } + mali_allocation->psize = args->size; + mali_allocation->vsize = args->size; + mali_allocation->mali_mapping.addr = args->vaddr; + + /* add allocation node to RB tree for index */ + mali_allocation->mali_vma_node.vm_node.start = args->vaddr; + mali_allocation->mali_vma_node.vm_node.size = args->size; + mali_vma_offset_add(&session->allocation_mgr, &mali_allocation->mali_vma_node); + + /* allocate backend*/ + if (mali_allocation->psize > 0) { + mali_allocation->backend_handle = mali_mem_backend_struct_create(&mem_backend, mali_allocation->psize); + if (mali_allocation->backend_handle < 0) { + goto Failed_alloc_backend; + } + + } else { + goto Failed_alloc_backend; + } + + mem_backend->size = mali_allocation->psize; + mem_backend->mali_allocation = mali_allocation; + + switch (args->flags & _MALI_MEMORY_BIND_BACKEND_MASK) { + case _MALI_MEMORY_BIND_BACKEND_UMP: +#if defined(CONFIG_MALI400_UMP) + mali_allocation->type = MALI_MEM_UMP; + mem_backend->type = MALI_MEM_UMP; + ret = mali_mem_bind_ump_buf(mali_allocation, mem_backend, + args->mem_union.bind_ump.secure_id, args->mem_union.bind_ump.flags); + if (_MALI_OSK_ERR_OK != ret) { + MALI_DEBUG_PRINT(1, ("Bind ump buf failed\n")); + goto Failed_bind_backend; + } +#else + MALI_DEBUG_PRINT(1, ("UMP not supported\n")); + goto Failed_bind_backend; +#endif + break; + case _MALI_MEMORY_BIND_BACKEND_DMA_BUF: +#if defined(CONFIG_DMA_SHARED_BUFFER) + mali_allocation->type = MALI_MEM_DMA_BUF; + mem_backend->type = MALI_MEM_DMA_BUF; + ret = mali_mem_bind_dma_buf(mali_allocation, mem_backend, + args->mem_union.bind_dma_buf.mem_fd, args->mem_union.bind_dma_buf.flags); + if (_MALI_OSK_ERR_OK != ret) { + MALI_DEBUG_PRINT(1, ("Bind dma buf failed\n")); + goto Failed_bind_backend; + } +#else + MALI_DEBUG_PRINT(1, ("DMA not supported\n")); + goto Failed_bind_backend; +#endif + break; + case _MALI_MEMORY_BIND_BACKEND_MALI_MEMORY: + /* not allowed */ + MALI_DEBUG_ASSERT(0); + break; + + case _MALI_MEMORY_BIND_BACKEND_EXTERNAL_MEMORY: + mali_allocation->type = MALI_MEM_EXTERNAL; + mem_backend->type = MALI_MEM_EXTERNAL; + ret = mali_mem_bind_ext_buf(mali_allocation, mem_backend, args->mem_union.bind_ext_memory.phys_addr, + args->mem_union.bind_ext_memory.flags); + if (_MALI_OSK_ERR_OK != ret) { + MALI_DEBUG_PRINT(1, ("Bind external buf failed\n")); + goto Failed_bind_backend; + } + break; + + case _MALI_MEMORY_BIND_BACKEND_EXT_COW: + /* not allowed */ + MALI_DEBUG_ASSERT(0); + break; + + default: + MALI_DEBUG_ASSERT(0); + break; + } + MALI_DEBUG_ASSERT(0 == mem_backend->size % MALI_MMU_PAGE_SIZE); + atomic_add(mem_backend->size / MALI_MMU_PAGE_SIZE, &session->mali_mem_array[mem_backend->type]); + return _MALI_OSK_ERR_OK; + +Failed_bind_backend: + 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); + + MALI_DEBUG_PRINT(1, (" _mali_ukk_mem_bind, return ERROR! \n")); + return ret; +} + + +/* +* Function _mali_ukk_mem_unbind -- unbind a external memory to a new GPU address +* This function unbind the backend memory and free the allocation +* no ref_count for this type of memory +*/ +_mali_osk_errcode_t _mali_ukk_mem_unbind(_mali_uk_unbind_mem_s *args) +{ + /**/ + struct mali_session_data *session = (struct mali_session_data *)(uintptr_t)args->ctx; + mali_mem_allocation *mali_allocation = NULL; + struct mali_vma_node *mali_vma_node = NULL; + u32 mali_addr = args->vaddr; + MALI_DEBUG_PRINT(5, (" _mali_ukk_mem_unbind, vaddr=0x%x! \n", args->vaddr)); + + /* find the allocation by vaddr */ + mali_vma_node = mali_vma_offset_search(&session->allocation_mgr, mali_addr, 0); + if (likely(mali_vma_node)) { + MALI_DEBUG_ASSERT(mali_addr == mali_vma_node->vm_node.start); + mali_allocation = container_of(mali_vma_node, struct mali_mem_allocation, mali_vma_node); + } else { + MALI_DEBUG_ASSERT(NULL != mali_vma_node); + return _MALI_OSK_ERR_INVALID_ARGS; + } + + if (NULL != mali_allocation) + /* check ref_count */ + mali_allocation_unref(&mali_allocation); + return _MALI_OSK_ERR_OK; +} + +/* +* Function _mali_ukk_mem_cow -- COW for an allocation +* This function allocate new pages for a range (range, range+size) of allocation +* And Map it(keep use the not in range pages from target allocation ) to an GPU vaddr +*/ +_mali_osk_errcode_t _mali_ukk_mem_cow(_mali_uk_cow_mem_s *args) +{ + _mali_osk_errcode_t ret = _MALI_OSK_ERR_FAULT; + mali_mem_backend *target_backend = NULL; + mali_mem_backend *mem_backend = NULL; + struct mali_vma_node *mali_vma_node = NULL; + mali_mem_allocation *mali_allocation = NULL; + + struct mali_session_data *session = (struct mali_session_data *)(uintptr_t)args->ctx; + /* Get the target backend for cow */ + target_backend = mali_mem_backend_struct_search(session, args->target_handle); + + if (NULL == target_backend || 0 == target_backend->size) { + MALI_DEBUG_ASSERT_POINTER(target_backend); + MALI_DEBUG_ASSERT(0 != target_backend->size); + return ret; + } + + /*Cow not support resized mem */ + MALI_DEBUG_ASSERT(MALI_MEM_FLAG_CAN_RESIZE != (MALI_MEM_FLAG_CAN_RESIZE & target_backend->mali_allocation->flags)); + + /* Check if the new mali address is allocated */ + mali_vma_node = mali_vma_offset_search(&session->allocation_mgr, args->vaddr, 0); + + if (unlikely(mali_vma_node)) { + MALI_DEBUG_ASSERT(0); + return ret; + } + + /* create new alloction for COW*/ + mali_allocation = mali_mem_allocation_struct_create(session); + if (mali_allocation == NULL) { + MALI_DEBUG_PRINT(1, ("_mali_ukk_mem_cow: Failed to create allocation struct!\n")); + return _MALI_OSK_ERR_NOMEM; + } + mali_allocation->psize = args->target_size; + mali_allocation->vsize = args->target_size; + mali_allocation->type = MALI_MEM_COW; + + /*add allocation node to RB tree for index*/ + mali_allocation->mali_vma_node.vm_node.start = args->vaddr; + mali_allocation->mali_vma_node.vm_node.size = mali_allocation->vsize; + mali_vma_offset_add(&session->allocation_mgr, &mali_allocation->mali_vma_node); + + /* create new backend for COW memory */ + mali_allocation->backend_handle = mali_mem_backend_struct_create(&mem_backend, mali_allocation->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 (target_backend->type == MALI_MEM_SWAP || + (MALI_MEM_COW == target_backend->type && (MALI_MEM_BACKEND_FLAG_SWAP_COWED & target_backend->flags))) { + mem_backend->flags |= MALI_MEM_BACKEND_FLAG_SWAP_COWED; + /** + * CoWed swap backends couldn't be mapped as non-linear vma, because if one + * vma is set with flag VM_NONLINEAR, the vma->vm_private_data will be used by kernel, + * while in mali driver, we use this variable to store the pointer of mali_allocation, so there + * is a conflict. + * To resolve this problem, we have to do some fake things, we reserved about 64MB + * space from index 0, there isn't really page's index will be set from 0 to (64MB>>PAGE_SHIFT_NUM), + * and all of CoWed swap memory backends' start_idx will be assigned with 0, and these + * backends will be mapped as linear and will add to priority tree of global swap file, while + * these vmas will never be found by using normal page->index, these pages in those vma + * also couldn't be swapped out. + */ + mem_backend->start_idx = 0; + } + + /* Add the target backend's cow count, also allocate new pages for COW backend from os mem + *for a modified range and keep the page which not in the modified range and Add ref to it + */ + MALI_DEBUG_PRINT(3, ("Cow mapping: target_addr: 0x%x; cow_addr: 0x%x, size: %u\n", target_backend->mali_allocation->mali_vma_node.vm_node.start, + mali_allocation->mali_vma_node.vm_node.start, mali_allocation->mali_vma_node.vm_node.size)); + + ret = mali_memory_do_cow(target_backend, args->target_offset, args->target_size, mem_backend, args->range_start, args->range_size); + if (_MALI_OSK_ERR_OK != ret) { + MALI_DEBUG_PRINT(1, ("_mali_ukk_mem_cow: Failed to cow!\n")); + goto failed_do_cow; + } + + /** + *map to GPU side + */ + mali_allocation->mali_mapping.addr = args->vaddr; + /* set gpu mmu propery */ + _mali_memory_gpu_map_property_set(&mali_allocation->mali_mapping.properties, args->flags); + + _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; + } + + if (!(mem_backend->flags & MALI_MEM_BACKEND_FLAG_SWAP_COWED)) { + mali_mem_cow_mali_map(mem_backend, 0, mem_backend->size); + } + + _mali_osk_mutex_signal(session->memory_lock); + + mutex_lock(&target_backend->mutex); + target_backend->flags |= MALI_MEM_BACKEND_FLAG_COWED; + mutex_unlock(&target_backend->mutex); + + atomic_add(args->range_size / MALI_MMU_PAGE_SIZE, &session->mali_mem_allocated_pages); + 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_gpu_map: + _mali_osk_mutex_signal(session->memory_lock); + mali_mem_cow_release(mem_backend, MALI_FALSE); + mem_backend->cow_mem.count = 0; +failed_do_cow: + 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_osk_errcode_t _mali_ukk_mem_cow_modify_range(_mali_uk_cow_modify_range_s *args) +{ + _mali_osk_errcode_t ret = _MALI_OSK_ERR_FAULT; + mali_mem_backend *mem_backend = NULL; + struct mali_session_data *session = (struct mali_session_data *)(uintptr_t)args->ctx; + + MALI_DEBUG_PRINT(4, (" _mali_ukk_mem_cow_modify_range called! \n")); + /* Get the backend that need to be modified. */ + mem_backend = mali_mem_backend_struct_search(session, args->vaddr); + + if (NULL == mem_backend || 0 == mem_backend->size) { + MALI_DEBUG_ASSERT_POINTER(mem_backend); + MALI_DEBUG_ASSERT(0 != mem_backend->size); + return ret; + } + + MALI_DEBUG_ASSERT(MALI_MEM_COW == mem_backend->type); + + ret = mali_memory_cow_modify_range(mem_backend, args->range_start, args->size); + args->change_pages_nr = mem_backend->cow_mem.change_pages_nr; + if (_MALI_OSK_ERR_OK != ret) + return ret; + _mali_osk_mutex_wait(session->memory_lock); + if (!(mem_backend->flags & MALI_MEM_BACKEND_FLAG_SWAP_COWED)) { + mali_mem_cow_mali_map(mem_backend, args->range_start, args->size); + } + _mali_osk_mutex_signal(session->memory_lock); + + atomic_add(args->change_pages_nr, &session->mali_mem_allocated_pages); + 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; +} + + +_mali_osk_errcode_t _mali_ukk_mem_resize(_mali_uk_mem_resize_s *args) +{ + mali_mem_backend *mem_backend = NULL; + _mali_osk_errcode_t ret = _MALI_OSK_ERR_FAULT; + + struct mali_session_data *session = (struct mali_session_data *)(uintptr_t)args->ctx; + + MALI_DEBUG_ASSERT_POINTER(session); + MALI_DEBUG_PRINT(4, (" mali_mem_resize_memory called! \n")); + MALI_DEBUG_ASSERT(0 == args->psize % MALI_MMU_PAGE_SIZE); + + /* Get the memory backend that need to be resize. */ + mem_backend = mali_mem_backend_struct_search(session, args->vaddr); + + if (NULL == mem_backend) { + MALI_DEBUG_PRINT(2, ("_mali_ukk_mem_resize: memory backend = NULL!\n")); + return ret; + } + + MALI_DEBUG_ASSERT(args->psize != mem_backend->size); + + ret = mali_mem_resize(session, mem_backend, args->psize); + + return ret; +} + +_mali_osk_errcode_t _mali_ukk_mem_usage_get(_mali_uk_profiling_memory_usage_get_s *args) +{ + args->memory_usage = _mali_ukk_report_memory_usage(); + if (0 != args->vaddr) { + mali_mem_backend *mem_backend = NULL; + struct mali_session_data *session = (struct mali_session_data *)(uintptr_t)args->ctx; + /* Get the backend that need to be modified. */ + mem_backend = mali_mem_backend_struct_search(session, args->vaddr); + if (NULL == mem_backend) { + MALI_DEBUG_ASSERT_POINTER(mem_backend); + return _MALI_OSK_ERR_FAULT; + } + + if (MALI_MEM_COW == mem_backend->type) + args->change_pages_nr = mem_backend->cow_mem.change_pages_nr; + } + return _MALI_OSK_ERR_OK; +} |