diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau')
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bo.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index db0ed4c13f98..028719fddf76 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c | |||
@@ -65,8 +65,10 @@ nouveau_bo_fixup_align(struct drm_device *dev, | |||
65 | 65 | ||
66 | /* | 66 | /* |
67 | * Some of the tile_flags have a periodic structure of N*4096 bytes, | 67 | * Some of the tile_flags have a periodic structure of N*4096 bytes, |
68 | * align to to that as well as the page size. Overallocate memory to | 68 | * align to to that as well as the page size. Align the size to the |
69 | * avoid corruption of other buffer objects. | 69 | * appropriate boundaries. This does imply that sizes are rounded up |
70 | * 3-7 pages, so be aware of this and do not waste memory by allocating | ||
71 | * many small buffers. | ||
70 | */ | 72 | */ |
71 | if (dev_priv->card_type == NV_50) { | 73 | if (dev_priv->card_type == NV_50) { |
72 | uint32_t block_size = nouveau_mem_fb_amount(dev) >> 15; | 74 | uint32_t block_size = nouveau_mem_fb_amount(dev) >> 15; |
@@ -77,22 +79,20 @@ nouveau_bo_fixup_align(struct drm_device *dev, | |||
77 | case 0x2800: | 79 | case 0x2800: |
78 | case 0x4800: | 80 | case 0x4800: |
79 | case 0x7a00: | 81 | case 0x7a00: |
80 | *size = roundup(*size, block_size); | ||
81 | if (is_power_of_2(block_size)) { | 82 | if (is_power_of_2(block_size)) { |
82 | *size += 3 * block_size; | ||
83 | for (i = 1; i < 10; i++) { | 83 | for (i = 1; i < 10; i++) { |
84 | *align = 12 * i * block_size; | 84 | *align = 12 * i * block_size; |
85 | if (!(*align % 65536)) | 85 | if (!(*align % 65536)) |
86 | break; | 86 | break; |
87 | } | 87 | } |
88 | } else { | 88 | } else { |
89 | *size += 6 * block_size; | ||
90 | for (i = 1; i < 10; i++) { | 89 | for (i = 1; i < 10; i++) { |
91 | *align = 8 * i * block_size; | 90 | *align = 8 * i * block_size; |
92 | if (!(*align % 65536)) | 91 | if (!(*align % 65536)) |
93 | break; | 92 | break; |
94 | } | 93 | } |
95 | } | 94 | } |
95 | *size = roundup(*size, *align); | ||
96 | break; | 96 | break; |
97 | default: | 97 | default: |
98 | break; | 98 | break; |