diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 05abf4c31dce..016957cac1f2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -191,6 +191,8 @@ amdgpu_ttm_job_submit(struct amdgpu_device *adev, struct amdgpu_ttm_buffer_entit * @tmz: if we should setup a TMZ enabled mapping * @size: in number of bytes to map, out number of bytes mapped * @addr: resulting address inside the MC address space + * @vm_needs_flush: out, set true if a GART window was programmed (VMID 0 flush + * needed) or false for a direct address * * Setup one of the GART windows to access a specific piece of memory or return * the physical address for local memory. @@ -200,7 +202,8 @@ static int amdgpu_ttm_map_buffer(struct amdgpu_ttm_buffer_entity *entity, struct ttm_resource *mem, struct amdgpu_res_cursor *mm_cur, unsigned int window, - bool tmz, uint64_t *size, uint64_t *addr) + bool tmz, uint64_t *size, uint64_t *addr, + bool *vm_needs_flush) { struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev); unsigned int offset, num_pages, num_dw, num_bytes; @@ -221,9 +224,12 @@ static int amdgpu_ttm_map_buffer(struct amdgpu_ttm_buffer_entity *entity, if (!tmz && mem->start != AMDGPU_BO_INVALID_OFFSET) { *addr = amdgpu_ttm_domain_start(adev, mem->mem_type) + mm_cur->start; + *vm_needs_flush = false; return 0; } + /* A GART window is programmed below, so its VMID 0 TLB needs a flush */ + *vm_needs_flush = true; /* * If start begins at an offset inside the page, then adjust the size @@ -324,6 +330,7 @@ static int amdgpu_ttm_copy_mem_to_mem(struct amdgpu_device *adev, while (src_mm.remaining) { uint64_t from, to, cur_size, tiling_flags; uint32_t num_type, data_format, max_com, write_compress_disable; + bool src_vm_flush, dst_vm_flush; struct dma_fence *next; /* Never copy more than 256MiB at once to avoid a timeout */ @@ -331,12 +338,12 @@ static int amdgpu_ttm_copy_mem_to_mem(struct amdgpu_device *adev, /* Map src to window 0 and dst to window 1. */ r = amdgpu_ttm_map_buffer(entity, src->bo, src->mem, &src_mm, - 0, tmz, &cur_size, &from); + 0, tmz, &cur_size, &from, &src_vm_flush); if (r) goto error; r = amdgpu_ttm_map_buffer(entity, dst->bo, dst->mem, &dst_mm, - 1, tmz, &cur_size, &to); + 1, tmz, &cur_size, &to, &dst_vm_flush); if (r) goto error; @@ -364,7 +371,7 @@ static int amdgpu_ttm_copy_mem_to_mem(struct amdgpu_device *adev, } r = amdgpu_copy_buffer(adev, entity, from, to, cur_size, resv, - &next, true, copy_flags); + &next, src_vm_flush || dst_vm_flush, copy_flags); if (r) goto error; @@ -2624,6 +2631,7 @@ int amdgpu_ttm_clear_buffer(struct amdgpu_ttm_buffer_entity *entity, struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); struct dma_fence *fence = NULL; struct amdgpu_res_cursor dst; + bool vm_needs_flush = false; int r; if (!entity) @@ -2645,13 +2653,13 @@ int amdgpu_ttm_clear_buffer(struct amdgpu_ttm_buffer_entity *entity, cur_size = min(dst.size, 256ULL << 20); r = amdgpu_ttm_map_buffer(entity, &bo->tbo, bo->tbo.resource, &dst, - 0, false, &cur_size, &to); + 0, false, &cur_size, &to, &vm_needs_flush); if (r) goto error; r = amdgpu_ttm_fill_mem(adev, entity, 0, to, cur_size, resv, - &next, true, k_job_id); + &next, vm_needs_flush, k_job_id); if (r) goto error; |