From c4c10a68e82b8a03df234ee744acabcc648df270 Mon Sep 17 00:00:00 2001 From: Rajneesh Bhardwaj Date: Wed, 20 Apr 2022 09:37:56 -0400 Subject: drm/amdgpu: Avoid direct cast to amdgpu_ttm_tt MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For typesafety, use container_of() instead of implicit cast from struct ttm_tt to struct amdgpu_ttm_tt. Reviewed-by: Christian König Reviewed-by: Felix Kuehling Signed-off-by: Rajneesh Bhardwaj Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 34 +++++++++++++++++---------------- 1 file changed, 18 insertions(+), 16 deletions(-) (limited to 'drivers/gpu/drm/amd') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 3b4c19412625..134575a3893c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -637,6 +637,8 @@ struct amdgpu_ttm_tt { #endif }; +#define ttm_to_amdgpu_ttm_tt(ptr) container_of(ptr, struct amdgpu_ttm_tt, ttm) + #ifdef CONFIG_DRM_AMDGPU_USERPTR /* * amdgpu_ttm_tt_get_user_pages - get device accessible pages that back user @@ -648,7 +650,7 @@ struct amdgpu_ttm_tt { int amdgpu_ttm_tt_get_user_pages(struct amdgpu_bo *bo, struct page **pages) { struct ttm_tt *ttm = bo->tbo.ttm; - struct amdgpu_ttm_tt *gtt = (void *)ttm; + struct amdgpu_ttm_tt *gtt = ttm_to_amdgpu_ttm_tt(ttm); unsigned long start = gtt->userptr; struct vm_area_struct *vma; struct mm_struct *mm; @@ -702,7 +704,7 @@ out_unlock: */ bool amdgpu_ttm_tt_get_user_pages_done(struct ttm_tt *ttm) { - struct amdgpu_ttm_tt *gtt = (void *)ttm; + struct amdgpu_ttm_tt *gtt = ttm_to_amdgpu_ttm_tt(ttm); bool r = false; if (!gtt || !gtt->userptr) @@ -751,7 +753,7 @@ static int amdgpu_ttm_tt_pin_userptr(struct ttm_device *bdev, struct ttm_tt *ttm) { struct amdgpu_device *adev = amdgpu_ttm_adev(bdev); - struct amdgpu_ttm_tt *gtt = (void *)ttm; + struct amdgpu_ttm_tt *gtt = ttm_to_amdgpu_ttm_tt(ttm); int write = !(gtt->userflags & AMDGPU_GEM_USERPTR_READONLY); enum dma_data_direction direction = write ? DMA_BIDIRECTIONAL : DMA_TO_DEVICE; @@ -788,7 +790,7 @@ static void amdgpu_ttm_tt_unpin_userptr(struct ttm_device *bdev, struct ttm_tt *ttm) { struct amdgpu_device *adev = amdgpu_ttm_adev(bdev); - struct amdgpu_ttm_tt *gtt = (void *)ttm; + struct amdgpu_ttm_tt *gtt = ttm_to_amdgpu_ttm_tt(ttm); int write = !(gtt->userflags & AMDGPU_GEM_USERPTR_READONLY); enum dma_data_direction direction = write ? DMA_BIDIRECTIONAL : DMA_TO_DEVICE; @@ -822,7 +824,7 @@ static void amdgpu_ttm_gart_bind(struct amdgpu_device *adev, { struct amdgpu_bo *abo = ttm_to_amdgpu_bo(tbo); struct ttm_tt *ttm = tbo->ttm; - struct amdgpu_ttm_tt *gtt = (void *)ttm; + struct amdgpu_ttm_tt *gtt = ttm_to_amdgpu_ttm_tt(ttm); if (amdgpu_bo_encrypted(abo)) flags |= AMDGPU_PTE_TMZ; @@ -860,7 +862,7 @@ static int amdgpu_ttm_backend_bind(struct ttm_device *bdev, struct ttm_resource *bo_mem) { struct amdgpu_device *adev = amdgpu_ttm_adev(bdev); - struct amdgpu_ttm_tt *gtt = (void*)ttm; + struct amdgpu_ttm_tt *gtt = ttm_to_amdgpu_ttm_tt(ttm); uint64_t flags; int r; @@ -927,7 +929,7 @@ int amdgpu_ttm_alloc_gart(struct ttm_buffer_object *bo) { struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev); struct ttm_operation_ctx ctx = { false, false }; - struct amdgpu_ttm_tt *gtt = (void *)bo->ttm; + struct amdgpu_ttm_tt *gtt = ttm_to_amdgpu_ttm_tt(bo->ttm); struct ttm_placement placement; struct ttm_place placements; struct ttm_resource *tmp; @@ -998,7 +1000,7 @@ static void amdgpu_ttm_backend_unbind(struct ttm_device *bdev, struct ttm_tt *ttm) { struct amdgpu_device *adev = amdgpu_ttm_adev(bdev); - struct amdgpu_ttm_tt *gtt = (void *)ttm; + struct amdgpu_ttm_tt *gtt = ttm_to_amdgpu_ttm_tt(ttm); /* if the pages have userptr pinning then clear that first */ if (gtt->userptr) { @@ -1025,7 +1027,7 @@ static void amdgpu_ttm_backend_unbind(struct ttm_device *bdev, static void amdgpu_ttm_backend_destroy(struct ttm_device *bdev, struct ttm_tt *ttm) { - struct amdgpu_ttm_tt *gtt = (void *)ttm; + struct amdgpu_ttm_tt *gtt = ttm_to_amdgpu_ttm_tt(ttm); if (gtt->usertask) put_task_struct(gtt->usertask); @@ -1079,7 +1081,7 @@ static int amdgpu_ttm_tt_populate(struct ttm_device *bdev, struct ttm_operation_ctx *ctx) { struct amdgpu_device *adev = amdgpu_ttm_adev(bdev); - struct amdgpu_ttm_tt *gtt = (void *)ttm; + struct amdgpu_ttm_tt *gtt = ttm_to_amdgpu_ttm_tt(ttm); pgoff_t i; int ret; @@ -1113,7 +1115,7 @@ static int amdgpu_ttm_tt_populate(struct ttm_device *bdev, static void amdgpu_ttm_tt_unpopulate(struct ttm_device *bdev, struct ttm_tt *ttm) { - struct amdgpu_ttm_tt *gtt = (void *)ttm; + struct amdgpu_ttm_tt *gtt = ttm_to_amdgpu_ttm_tt(ttm); struct amdgpu_device *adev; pgoff_t i; @@ -1182,7 +1184,7 @@ int amdgpu_ttm_tt_set_userptr(struct ttm_buffer_object *bo, /* Set TTM_TT_FLAG_EXTERNAL before populate but after create. */ bo->ttm->page_flags |= TTM_TT_FLAG_EXTERNAL; - gtt = (void *)bo->ttm; + gtt = ttm_to_amdgpu_ttm_tt(bo->ttm); gtt->userptr = addr; gtt->userflags = flags; @@ -1199,7 +1201,7 @@ int amdgpu_ttm_tt_set_userptr(struct ttm_buffer_object *bo, */ struct mm_struct *amdgpu_ttm_tt_get_usermm(struct ttm_tt *ttm) { - struct amdgpu_ttm_tt *gtt = (void *)ttm; + struct amdgpu_ttm_tt *gtt = ttm_to_amdgpu_ttm_tt(ttm); if (gtt == NULL) return NULL; @@ -1218,7 +1220,7 @@ struct mm_struct *amdgpu_ttm_tt_get_usermm(struct ttm_tt *ttm) bool amdgpu_ttm_tt_affect_userptr(struct ttm_tt *ttm, unsigned long start, unsigned long end, unsigned long *userptr) { - struct amdgpu_ttm_tt *gtt = (void *)ttm; + struct amdgpu_ttm_tt *gtt = ttm_to_amdgpu_ttm_tt(ttm); unsigned long size; if (gtt == NULL || !gtt->userptr) @@ -1241,7 +1243,7 @@ bool amdgpu_ttm_tt_affect_userptr(struct ttm_tt *ttm, unsigned long start, */ bool amdgpu_ttm_tt_is_userptr(struct ttm_tt *ttm) { - struct amdgpu_ttm_tt *gtt = (void *)ttm; + struct amdgpu_ttm_tt *gtt = ttm_to_amdgpu_ttm_tt(ttm); if (gtt == NULL || !gtt->userptr) return false; @@ -1254,7 +1256,7 @@ bool amdgpu_ttm_tt_is_userptr(struct ttm_tt *ttm) */ bool amdgpu_ttm_tt_is_readonly(struct ttm_tt *ttm) { - struct amdgpu_ttm_tt *gtt = (void *)ttm; + struct amdgpu_ttm_tt *gtt = ttm_to_amdgpu_ttm_tt(ttm); if (gtt == NULL) return false; -- cgit v1.2.3-59-g8ed1b