xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/amdgpu: Add GPUVM memory management functions for KFD

Browse Source 
v2:
* Removed unused flags from struct kgd_mem
* Updated some comments
* Added a check to unmap_memory_from_gpu whether BO was mapped

v3: add mutex_destroy in relevant places

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
This commit is contained in:
Felix Kuehling
2018-02-06 20:32:38 -05:00
committed by Oded Gabbay
parent 3c728d3aa1
commit a46a2cd103
11 changed files with 1819 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

77
drivers/gpu/drm/amd/include/kgd_kfd_interface.h
View File

@@ -127,6 +127,25 @@ struct tile_config {
uint32_t num_ranks;
};
/*
* Allocation flag domains
*/
#define ALLOC_MEM_FLAGS_VRAM (1 << 0)
#define ALLOC_MEM_FLAGS_GTT (1 << 1)
#define ALLOC_MEM_FLAGS_USERPTR (1 << 2) /* TODO */
#define ALLOC_MEM_FLAGS_DOORBELL (1 << 3) /* TODO */
/*
* Allocation flags attributes/access options.
*/
#define ALLOC_MEM_FLAGS_WRITABLE (1 << 31)
#define ALLOC_MEM_FLAGS_EXECUTABLE (1 << 30)
#define ALLOC_MEM_FLAGS_PUBLIC (1 << 29)
#define ALLOC_MEM_FLAGS_NO_SUBSTITUTE (1 << 28) /* TODO */
#define ALLOC_MEM_FLAGS_AQL_QUEUE_MEM (1 << 27)
#define ALLOC_MEM_FLAGS_COHERENT (1 << 26) /* For GFXv9 or later */
/**
* struct kfd2kgd_calls
*
@@ -186,6 +205,41 @@ struct tile_config {
*
* @get_vram_usage: Returns current VRAM usage
*
* @create_process_vm: Create a VM address space for a given process and GPU
*
* @destroy_process_vm: Destroy a VM
*
* @get_process_page_dir: Get physical address of a VM page directory
*
* @set_vm_context_page_table_base: Program page table base for a VMID
*
* @alloc_memory_of_gpu: Allocate GPUVM memory
*
* @free_memory_of_gpu: Free GPUVM memory
*
* @map_memory_to_gpu: Map GPUVM memory into a specific VM address
* space. Allocates and updates page tables and page directories as
* needed. This function may return before all page table updates have
* completed. This allows multiple map operations (on multiple GPUs)
* to happen concurrently. Use sync_memory to synchronize with all
* pending updates.
*
* @unmap_memor_to_gpu: Unmap GPUVM memory from a specific VM address space
*
* @sync_memory: Wait for pending page table updates to complete
*
* @map_gtt_bo_to_kernel: Map a GTT BO for kernel access
* Pins the BO, maps it to kernel address space. Such BOs are never evicted.
* The kernel virtual address remains valid until the BO is freed.
*
* @restore_process_bos: Restore all BOs that belong to the
* process. This is intended for restoring memory mappings after a TTM
* eviction.
*
* @invalidate_tlbs: Invalidate TLBs for a specific PASID
*
* @invalidate_tlbs_vmid: Invalidate TLBs for a specific VMID
*
* This structure contains function pointers to services that the kgd driver
* provides to amdkfd driver.
*
@@ -275,6 +329,29 @@ struct kfd2kgd_calls {
void (*get_cu_info)(struct kgd_dev *kgd,
struct kfd_cu_info *cu_info);
uint64_t (*get_vram_usage)(struct kgd_dev *kgd);
int (*create_process_vm)(struct kgd_dev *kgd, void **vm,
void **process_info, struct dma_fence **ef);
void (*destroy_process_vm)(struct kgd_dev *kgd, void *vm);
uint32_t (*get_process_page_dir)(void *vm);
void (*set_vm_context_page_table_base)(struct kgd_dev *kgd,
uint32_t vmid, uint32_t page_table_base);
int (*alloc_memory_of_gpu)(struct kgd_dev *kgd, uint64_t va,
uint64_t size, void *vm,
struct kgd_mem **mem, uint64_t *offset,
uint32_t flags);
int (*free_memory_of_gpu)(struct kgd_dev *kgd, struct kgd_mem *mem);
int (*map_memory_to_gpu)(struct kgd_dev *kgd, struct kgd_mem *mem,
void *vm);
int (*unmap_memory_to_gpu)(struct kgd_dev *kgd, struct kgd_mem *mem,
void *vm);
int (*sync_memory)(struct kgd_dev *kgd, struct kgd_mem *mem, bool intr);
int (*map_gtt_bo_to_kernel)(struct kgd_dev *kgd, struct kgd_mem *mem,
void **kptr, uint64_t *size);
int (*restore_process_bos)(void *process_info, struct dma_fence **ef);
int (*invalidate_tlbs)(struct kgd_dev *kgd, uint16_t pasid);
int (*invalidate_tlbs_vmid)(struct kgd_dev *kgd, uint16_t vmid);
};
/**