drm/amdgpu: fix and cleanup amdgpu_bo_create v2

We adjusted the BO flags for USWC handling, but those never took effect
because the placement was passed in instead of generated inside this
function.

v2: better commit message

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 23 insertions, 60 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 52d0109c0d9c..726a662f43f4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -64,11 +64,12 @@ bool amdgpu_ttm_bo_is_amdgpu_bo(struct ttm_buffer_object *bo)
         return false;
 }
 
-static void amdgpu_ttm_placement_init(struct amdgpu_device *adev,
-                                      struct ttm_placement *placement,
-                                      struct ttm_place *places,
-                                      u32 domain, u64 flags)
+void amdgpu_ttm_placement_from_domain(struct amdgpu_bo *abo, u32 domain)
 {
+        struct amdgpu_device *adev = amdgpu_ttm_adev(abo->tbo.bdev);
+        struct ttm_placement *placement = &abo->placement;
+        struct ttm_place *places = abo->placements;
+        u64 flags = abo->flags;
         u32 c = 0;
 
         if (domain & AMDGPU_GEM_DOMAIN_VRAM) {
@@ -151,27 +152,6 @@ static void amdgpu_ttm_placement_init(struct amdgpu_device *adev,
         placement->busy_placement = places;
 }
 
-void amdgpu_ttm_placement_from_domain(struct amdgpu_bo *abo, u32 domain)
-{
-        struct amdgpu_device *adev = amdgpu_ttm_adev(abo->tbo.bdev);
-
-        amdgpu_ttm_placement_init(adev, &abo->placement, abo->placements,
-                                  domain, abo->flags);
-}
-
-static void amdgpu_fill_placement_to_bo(struct amdgpu_bo *bo,
-                                        struct ttm_placement *placement)
-{
-        BUG_ON(placement->num_placement > (AMDGPU_GEM_DOMAIN_MAX + 1));
-
-        memcpy(bo->placements, placement->placement,
-               placement->num_placement * sizeof(struct ttm_place));
-        bo->placement.num_placement = placement->num_placement;
-        bo->placement.num_busy_placement = placement->num_busy_placement;
-        bo->placement.placement = bo->placements;
-        bo->placement.busy_placement = bo->placements;
-}
-
 /**
  * amdgpu_bo_create_reserved - create reserved BO for kernel use
  *
@@ -303,14 +283,13 @@ void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr,
                 *cpu_addr = NULL;
 }
 
-int amdgpu_bo_create_restricted(struct amdgpu_device *adev,
-                                unsigned long size, int byte_align,
-                                bool kernel, u32 domain, u64 flags,
-                                struct sg_table *sg,
-                                struct ttm_placement *placement,
-                                struct reservation_object *resv,
-                                uint64_t init_value,
-                                struct amdgpu_bo **bo_ptr)
+static int amdgpu_bo_do_create(struct amdgpu_device *adev,
+                               unsigned long size, int byte_align,
+                               bool kernel, u32 domain, u64 flags,
+                               struct sg_table *sg,
+                               struct reservation_object *resv,
+                               uint64_t init_value,
+                               struct amdgpu_bo **bo_ptr)
 {
         struct amdgpu_bo *bo;
         enum ttm_bo_type type;
@@ -384,10 +363,11 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev,
                 bo->flags &= ~AMDGPU_GEM_CREATE_CPU_GTT_USWC;
 #endif
 
-        amdgpu_fill_placement_to_bo(bo, placement);
-        /* Kernel allocation are uninterruptible */
+        bo->tbo.bdev = &adev->mman.bdev;
+        amdgpu_ttm_placement_from_domain(bo, domain);
 
         initial_bytes_moved = atomic64_read(&adev->num_bytes_moved);
+        /* Kernel allocation are uninterruptible */
         r = ttm_bo_init_reserved(&adev->mman.bdev, &bo->tbo, size, type,
                                  &bo->placement, page_align, !kernel, NULL,
                                  acc_size, sg, resv, &amdgpu_ttm_bo_destroy);
@@ -442,27 +422,17 @@ static int amdgpu_bo_create_shadow(struct amdgpu_device *adev,
                                    unsigned long size, int byte_align,
                                    struct amdgpu_bo *bo)
 {
-        struct ttm_placement placement = {0};
-        struct ttm_place placements[AMDGPU_GEM_DOMAIN_MAX + 1];
         int r;
 
         if (bo->shadow)
                 return 0;
 
-        memset(&placements, 0, sizeof(placements));
-        amdgpu_ttm_placement_init(adev, &placement, placements,
-                                  AMDGPU_GEM_DOMAIN_GTT,
-                                  AMDGPU_GEM_CREATE_CPU_GTT_USWC |
-                                  AMDGPU_GEM_CREATE_SHADOW);
-
-        r = amdgpu_bo_create_restricted(adev, size, byte_align, true,
-                                        AMDGPU_GEM_DOMAIN_GTT,
-                                        AMDGPU_GEM_CREATE_CPU_GTT_USWC |
-                                        AMDGPU_GEM_CREATE_SHADOW,
-                                        NULL, &placement,
-                                        bo->tbo.resv,
-                                        0,
-                                        &bo->shadow);
+        r = amdgpu_bo_do_create(adev, size, byte_align, true,
+                                AMDGPU_GEM_DOMAIN_GTT,
+                                AMDGPU_GEM_CREATE_CPU_GTT_USWC |
+                                AMDGPU_GEM_CREATE_SHADOW,
+                                NULL, bo->tbo.resv, 0,
+                                &bo->shadow);
         if (!r) {
                 bo->shadow->parent = amdgpu_bo_ref(bo);
                 mutex_lock(&adev->shadow_list_lock);
@@ -484,18 +454,11 @@ int amdgpu_bo_create(struct amdgpu_device *adev,
                      uint64_t init_value,
                      struct amdgpu_bo **bo_ptr)
 {
-        struct ttm_placement placement = {0};
-        struct ttm_place placements[AMDGPU_GEM_DOMAIN_MAX + 1];
         uint64_t parent_flags = flags & ~AMDGPU_GEM_CREATE_SHADOW;
         int r;
 
-        memset(&placements, 0, sizeof(placements));
-        amdgpu_ttm_placement_init(adev, &placement, placements,
-                                  domain, parent_flags);
-
-        r = amdgpu_bo_create_restricted(adev, size, byte_align, kernel, domain,
-                                        parent_flags, sg, &placement, resv,
-                                        init_value, bo_ptr);
+        r = amdgpu_bo_do_create(adev, size, byte_align, kernel, domain,
+                                parent_flags, sg, resv, init_value, bo_ptr);
         if (r)
                 return r;