diff options
| author | Christian König <christian.koenig@amd.com> | 2020-09-30 10:38:48 +0200 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2020-10-15 12:50:40 +0200 |
| commit | 1b4ea4c5980ff3a64607166298269c30a9671d33 (patch) | |
| tree | c96db402414813d2002866a7533024ec512c655b /drivers/gpu/drm/amd/amdgpu | |
| parent | 070c7fa58bce986eb7a504390dd429edcb068f44 (diff) | |
drm/ttm: set the tt caching state at creation time
All drivers can determine the tt caching state at creation time,
no need to do this on the fly during every validation.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Link: https://patchwork.freedesktop.org/patch/394253/
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 11 |
2 files changed, 10 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c index 213ef090bb0e8..3c5ad69eff191 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c @@ -124,7 +124,7 @@ uint64_t amdgpu_gmc_agp_addr(struct ttm_buffer_object *bo) struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev); struct ttm_dma_tt *ttm; - if (bo->num_pages != 1 || bo->ttm->caching_state == tt_cached) + if (bo->num_pages != 1 || bo->ttm->caching == ttm_cached) return AMDGPU_BO_INVALID_OFFSET; ttm = container_of(bo->ttm, struct ttm_dma_tt, ttm); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 399961035ae6e..7f41a47e73533 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -1292,7 +1292,9 @@ static void amdgpu_ttm_backend_destroy(struct ttm_bo_device *bdev, static struct ttm_tt *amdgpu_ttm_tt_create(struct ttm_buffer_object *bo, uint32_t page_flags) { + struct amdgpu_bo *abo = ttm_to_amdgpu_bo(bo); struct amdgpu_ttm_tt *gtt; + enum ttm_caching caching; gtt = kzalloc(sizeof(struct amdgpu_ttm_tt), GFP_KERNEL); if (gtt == NULL) { @@ -1300,8 +1302,13 @@ static struct ttm_tt *amdgpu_ttm_tt_create(struct ttm_buffer_object *bo, } gtt->gobj = &bo->base; + if (abo->flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC) + caching = ttm_write_combined; + else + caching = ttm_cached; + /* allocate space for the uninitialized page entries */ - if (ttm_sg_tt_init(>t->ttm, bo, page_flags)) { + if (ttm_sg_tt_init(>t->ttm, bo, page_flags, caching)) { kfree(gtt); return NULL; } @@ -1525,7 +1532,7 @@ uint64_t amdgpu_ttm_tt_pde_flags(struct ttm_tt *ttm, struct ttm_resource *mem) if (mem && mem->mem_type == TTM_PL_TT) { flags |= AMDGPU_PTE_SYSTEM; - if (ttm->caching_state == tt_cached) + if (ttm->caching == ttm_cached) flags |= AMDGPU_PTE_SNOOPED; } |