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authorJerome Glisse <jglisse@redhat.com>2011-11-11 15:42:57 -0500
committerDave Airlie <airlied@redhat.com>2011-12-06 10:40:11 +0000
commit57de4ba959b290f0b8cf36ecd5e7f1b29d4b8a12 (patch)
tree8063f4dfaf1a22bf8cf7a5f0410d4e4929b250ec /drivers/gpu/drm/radeon/radeon_object.c
parent8e7e70522d760c4ccd4cd370ebfa0ba69e006c6e (diff)
drm/ttm: simplify memory accounting for ttm user v2
Provide helper function to compute the kernel memory size needed for each buffer object. Move all the accounting inside ttm, simplifying driver and avoiding code duplication accross them. v2 fix accounting of ghost object, one would have thought that i would have run into the issue since a longtime but it seems ghost object are rare when you have plenty of vram ;) Signed-off-by: Jerome Glisse <jglisse@redhat.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_object.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_object.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index 1c851521f45..695b4800329 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -95,6 +95,7 @@ int radeon_bo_create(struct radeon_device *rdev,
enum ttm_bo_type type;
unsigned long page_align = roundup(byte_align, PAGE_SIZE) >> PAGE_SHIFT;
unsigned long max_size = 0;
+ size_t acc_size;
int r;
size = ALIGN(size, PAGE_SIZE);
@@ -117,6 +118,9 @@ int radeon_bo_create(struct radeon_device *rdev,
return -ENOMEM;
}
+ acc_size = ttm_bo_dma_acc_size(&rdev->mman.bdev, size,
+ sizeof(struct radeon_bo));
+
retry:
bo = kzalloc(sizeof(struct radeon_bo), GFP_KERNEL);
if (bo == NULL)
@@ -134,8 +138,8 @@ retry:
/* Kernel allocation are uninterruptible */
mutex_lock(&rdev->vram_mutex);
r = ttm_bo_init(&rdev->mman.bdev, &bo->tbo, size, type,
- &bo->placement, page_align, 0, !kernel, NULL, size,
- &radeon_ttm_bo_destroy);
+ &bo->placement, page_align, 0, !kernel, NULL,
+ acc_size, &radeon_ttm_bo_destroy);
mutex_unlock(&rdev->vram_mutex);
if (unlikely(r != 0)) {
if (r != -ERESTARTSYS) {