drm/radeon: embed struct drm_gem_object

Unconditionally initialize the drm gem object - it's not
worth the trouble not to for the few kernel objects.

This patch only changes the place of the drm gem object,
access is still done via pointers.

v2: Uncoditionally align the size in radeon_bo_create. At
least the r600/evergreen blit code didn't to this, angering
the paranoid gem code.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/evergreen_blit_kms.c

@@ -572,7 +572,7 @@ int evergreen_blit_init(struct radeon_device *rdev)
 	obj_size += evergreen_ps_size * 4;
 	obj_size = ALIGN(obj_size, 256);
 
-	r = radeon_bo_create(rdev, NULL, obj_size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
+	r = radeon_bo_create(rdev, obj_size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
 				&rdev->r600_blit.shader_obj);
 	if (r) {
 		DRM_ERROR("evergreen failed to allocate shader\n");

drivers/gpu/drm/radeon/r600.c

@@ -2728,7 +2728,7 @@ static int r600_ih_ring_alloc(struct radeon_device *rdev)
 
 	/* Allocate ring buffer */
 	if (rdev->ih.ring_obj == NULL) {
-		r = radeon_bo_create(rdev, NULL, rdev->ih.ring_size,
+		r = radeon_bo_create(rdev, rdev->ih.ring_size,
 				     PAGE_SIZE, true,
 				     RADEON_GEM_DOMAIN_GTT,
 				     &rdev->ih.ring_obj);

drivers/gpu/drm/radeon/r600_blit_kms.c

@@ -501,7 +501,7 @@ int r600_blit_init(struct radeon_device *rdev)
 	obj_size += r6xx_ps_size * 4;
 	obj_size = ALIGN(obj_size, 256);
 
-	r = radeon_bo_create(rdev, NULL, obj_size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
+	r = radeon_bo_create(rdev, obj_size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
 				&rdev->r600_blit.shader_obj);
 	if (r) {
 		DRM_ERROR("r600 failed to allocate shader\n");

drivers/gpu/drm/radeon/radeon.h

@@ -259,6 +259,7 @@ struct radeon_bo {
 	/* Constant after initialization */
 	struct radeon_device		*rdev;
 	struct drm_gem_object		*gobj;
+	struct drm_gem_object		gem_base;
 };
 
 struct radeon_bo_list {

drivers/gpu/drm/radeon/radeon_benchmark.c

@@ -41,7 +41,7 @@ void radeon_benchmark_move(struct radeon_device *rdev, unsigned bsize,
 
 	size = bsize;
 	n = 1024;
-	r = radeon_bo_create(rdev, NULL, size, PAGE_SIZE, true, sdomain, &sobj);
+	r = radeon_bo_create(rdev, size, PAGE_SIZE, true, sdomain, &sobj);
 	if (r) {
 		goto out_cleanup;
 	}
@@ -53,7 +53,7 @@ void radeon_benchmark_move(struct radeon_device *rdev, unsigned bsize,
 	if (r) {
 		goto out_cleanup;
 	}
-	r = radeon_bo_create(rdev, NULL, size, PAGE_SIZE, true, ddomain, &dobj);
+	r = radeon_bo_create(rdev, size, PAGE_SIZE, true, ddomain, &dobj);
 	if (r) {
 		goto out_cleanup;
 	}

drivers/gpu/drm/radeon/radeon_device.c

@@ -184,7 +184,7 @@ int radeon_wb_init(struct radeon_device *rdev)
 	int r;
 
 	if (rdev->wb.wb_obj == NULL) {
-		r = radeon_bo_create(rdev, NULL, RADEON_GPU_PAGE_SIZE, PAGE_SIZE, true,
+		r = radeon_bo_create(rdev, RADEON_GPU_PAGE_SIZE, PAGE_SIZE, true,
 				RADEON_GEM_DOMAIN_GTT, &rdev->wb.wb_obj);
 		if (r) {
 			dev_warn(rdev->dev, "(%d) create WB bo failed\n", r);

drivers/gpu/drm/radeon/radeon_gart.c

@@ -78,7 +78,7 @@ int radeon_gart_table_vram_alloc(struct radeon_device *rdev)
 	int r;
 
 	if (rdev->gart.table.vram.robj == NULL) {
-		r = radeon_bo_create(rdev, NULL, rdev->gart.table_size,
+		r = radeon_bo_create(rdev, rdev->gart.table_size,
 				     PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
 				     &rdev->gart.table.vram.robj);
 		if (r) {

drivers/gpu/drm/radeon/radeon_gem.c

@@ -32,7 +32,8 @@
 
 int radeon_gem_object_init(struct drm_gem_object *obj)
 {
-	/* we do nothings here */
+	BUG();
+
 	return 0;
 }
 
@@ -44,9 +45,6 @@ void radeon_gem_object_free(struct drm_gem_object *gobj)
 	if (robj) {
 		radeon_bo_unref(&robj);
 	}
-
-	drm_gem_object_release(gobj);
-	kfree(gobj);
 }
 
 int radeon_gem_object_create(struct radeon_device *rdev, int size,
@@ -54,29 +52,27 @@ int radeon_gem_object_create(struct radeon_device *rdev, int size,
 				bool discardable, bool kernel,
 				struct drm_gem_object **obj)
 {
-	struct drm_gem_object *gobj;
 	struct radeon_bo *robj;
 	int r;
 
 	*obj = NULL;
-	gobj = drm_gem_object_alloc(rdev->ddev, size);
-	if (!gobj) {
-		return -ENOMEM;
-	}
 	/* At least align on page size */
 	if (alignment < PAGE_SIZE) {
 		alignment = PAGE_SIZE;
 	}
-	r = radeon_bo_create(rdev, gobj, size, alignment, kernel, initial_domain, &robj);
+	r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, &robj);
 	if (r) {
 		if (r != -ERESTARTSYS)
 			DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n",
 				  size, initial_domain, alignment, r);
-		drm_gem_object_unreference_unlocked(gobj);
 		return r;
 	}
-	gobj->driver_private = robj;
-	*obj = gobj;
+	*obj = &robj->gem_base;
+
+	mutex_lock(&rdev->gem.mutex);
+	list_add_tail(&robj->list, &rdev->gem.objects);
+	mutex_unlock(&rdev->gem.mutex);
+
 	return 0;
 }
 

drivers/gpu/drm/radeon/radeon_object.c

@@ -55,6 +55,7 @@ static void radeon_ttm_bo_destroy(struct ttm_buffer_object *tbo)
 	list_del_init(&bo->list);
 	mutex_unlock(&bo->rdev->gem.mutex);
 	radeon_bo_clear_surface_reg(bo);
+	drm_gem_object_release(&bo->gem_base);
 	kfree(bo);
 }
 
@@ -86,7 +87,7 @@ void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain)
 	rbo->placement.num_busy_placement = c;
 }
 
-int radeon_bo_create(struct radeon_device *rdev, struct drm_gem_object *gobj,
+int radeon_bo_create(struct radeon_device *rdev,
 		     unsigned long size, int byte_align, bool kernel, u32 domain,
 		     struct radeon_bo **bo_ptr)
 {
@@ -96,6 +97,8 @@ int radeon_bo_create(struct radeon_device *rdev, struct drm_gem_object *gobj,
 	unsigned long max_size = 0;
 	int r;
 
+	size = ALIGN(size, PAGE_SIZE);
+
 	if (unlikely(rdev->mman.bdev.dev_mapping == NULL)) {
 		rdev->mman.bdev.dev_mapping = rdev->ddev->dev_mapping;
 	}
@@ -118,8 +121,14 @@ retry:
 	bo = kzalloc(sizeof(struct radeon_bo), GFP_KERNEL);
 	if (bo == NULL)
 		return -ENOMEM;
+	r = drm_gem_object_init(rdev->ddev, &bo->gem_base, size);
+	if (unlikely(r)) {
+		kfree(bo);
+		return r;
+	}
 	bo->rdev = rdev;
-	bo->gobj = gobj;
+	bo->gobj = &bo->gem_base;
+	bo->gem_base.driver_private = bo;
 	bo->surface_reg = -1;
 	INIT_LIST_HEAD(&bo->list);
 	radeon_ttm_placement_from_domain(bo, domain);
@@ -142,12 +151,9 @@ retry:
 		return r;
 	}
 	*bo_ptr = bo;
-	if (gobj) {
-		mutex_lock(&bo->rdev->gem.mutex);
-		list_add_tail(&bo->list, &rdev->gem.objects);
-		mutex_unlock(&bo->rdev->gem.mutex);
-	}
+
 	trace_radeon_bo_create(bo);
+
 	return 0;
 }
 

drivers/gpu/drm/radeon/radeon_object.h

@@ -137,10 +137,9 @@ static inline int radeon_bo_wait(struct radeon_bo *bo, u32 *mem_type,
 }
 
 extern int radeon_bo_create(struct radeon_device *rdev,
-			    struct drm_gem_object *gobj, unsigned long size,
-			    int byte_align,
-			    bool kernel, u32 domain,
-			    struct radeon_bo **bo_ptr);
+				unsigned long size, int byte_align,
+				bool kernel, u32 domain,
+				struct radeon_bo **bo_ptr);
 extern int radeon_bo_kmap(struct radeon_bo *bo, void **ptr);
 extern void radeon_bo_kunmap(struct radeon_bo *bo);
 extern void radeon_bo_unref(struct radeon_bo **bo);

drivers/gpu/drm/radeon/radeon_ring.c

@@ -175,7 +175,7 @@ int radeon_ib_pool_init(struct radeon_device *rdev)
 		return 0;
 	INIT_LIST_HEAD(&rdev->ib_pool.bogus_ib);
 	/* Allocate 1M object buffer */
-	r = radeon_bo_create(rdev, NULL,  RADEON_IB_POOL_SIZE*64*1024,
+	r = radeon_bo_create(rdev, RADEON_IB_POOL_SIZE*64*1024,
 			     PAGE_SIZE, true, RADEON_GEM_DOMAIN_GTT,
 			     &rdev->ib_pool.robj);
 	if (r) {
@@ -332,7 +332,7 @@ int radeon_ring_init(struct radeon_device *rdev, unsigned ring_size)
 	rdev->cp.ring_size = ring_size;
 	/* Allocate ring buffer */
 	if (rdev->cp.ring_obj == NULL) {
-		r = radeon_bo_create(rdev, NULL, rdev->cp.ring_size, PAGE_SIZE, true,
+		r = radeon_bo_create(rdev, rdev->cp.ring_size, PAGE_SIZE, true,
 					RADEON_GEM_DOMAIN_GTT,
 					&rdev->cp.ring_obj);
 		if (r) {

drivers/gpu/drm/radeon/radeon_test.c

@@ -52,7 +52,7 @@ void radeon_test_moves(struct radeon_device *rdev)
 		goto out_cleanup;
 	}
 
-	r = radeon_bo_create(rdev, NULL, size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
+	r = radeon_bo_create(rdev, size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
 				&vram_obj);
 	if (r) {
 		DRM_ERROR("Failed to create VRAM object\n");
@@ -71,7 +71,7 @@ void radeon_test_moves(struct radeon_device *rdev)
 		void **gtt_start, **gtt_end;
 		void **vram_start, **vram_end;
 
-		r = radeon_bo_create(rdev, NULL, size, PAGE_SIZE, true,
+		r = radeon_bo_create(rdev, size, PAGE_SIZE, true,
 					 RADEON_GEM_DOMAIN_GTT, gtt_obj + i);
 		if (r) {
 			DRM_ERROR("Failed to create GTT object %d\n", i);

drivers/gpu/drm/radeon/radeon_ttm.c

@@ -529,7 +529,7 @@ int radeon_ttm_init(struct radeon_device *rdev)
 		DRM_ERROR("Failed initializing VRAM heap.\n");
 		return r;
 	}
-	r = radeon_bo_create(rdev, NULL, 256 * 1024, PAGE_SIZE, true,
+	r = radeon_bo_create(rdev, 256 * 1024, PAGE_SIZE, true,
 				RADEON_GEM_DOMAIN_VRAM,
 				&rdev->stollen_vga_memory);
 	if (r) {

drivers/gpu/drm/radeon/rv770.c

@@ -999,7 +999,7 @@ static int rv770_vram_scratch_init(struct radeon_device *rdev)
 	u64 gpu_addr;
 
 	if (rdev->vram_scratch.robj == NULL) {
-		r = radeon_bo_create(rdev, NULL, RADEON_GPU_PAGE_SIZE,
+		r = radeon_bo_create(rdev, RADEON_GPU_PAGE_SIZE,
 				     PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
 				     &rdev->vram_scratch.robj);
 		if (r) {