diff options
| author | Maarten Maathuis <madman2003@gmail.com> | 2009-12-26 21:46:36 +0100 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2010-01-11 09:06:37 +1000 |
| commit | a510604df9444a2a1bdecafc048749e0f35816b5 (patch) | |
| tree | c6eaff0a78854d4603393768149eacbf884cacc7 /drivers | |
| parent | 1c7059e4f36e76c72cefbb6c9bd2bcf45c12e777 (diff) | |
drm/nv50: make the blocksize depend on vram size
- This should be better than what we have now.
- I'm less sure about the non power of two path.
Signed-off-by: Maarten Maathuis <madman2003@gmail.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bo.c | 36 |
1 files changed, 19 insertions, 17 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index a0c9e00e706..e342a418d43 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -33,6 +33,8 @@ #include "nouveau_drv.h" #include "nouveau_dma.h" +#include <linux/log2.h> + static void nouveau_bo_del_ttm(struct ttm_buffer_object *bo) { @@ -67,29 +69,29 @@ nouveau_bo_fixup_align(struct drm_device *dev, * avoid corruption of other buffer objects. */ if (dev_priv->card_type == NV_50) { + uint32_t block_size = nouveau_mem_fb_amount(dev) >> 15; + int i; + switch (tile_flags) { case 0x1800: case 0x2800: case 0x4800: case 0x7a00: - if (dev_priv->chipset >= 0xA0) { - *size = roundup(*size, 28672); - /* This is based on high end cards with 448 bits - * memory bus, could be different elsewhere.*/ - *size += 6 * 28672; - /* 8 * 28672 is the actual alignment requirement - * but we must also align to page size. */ - *align = 2 * 8 * 28672; - } else if (dev_priv->chipset >= 0x90) { - *size = roundup(*size, 16384); - *size += 3 * 16384; - *align = 12 * 16384; + *size = roundup(*size, block_size); + if (is_power_of_2(block_size)) { + *size += 3 * block_size; + for (i = 1; i < 10; i++) { + *align = 12 * i * block_size; + if (!(*align % 65536)) + break; + } } else { - *size = roundup(*size, 8192); - *size += 3 * 8192; - /* 12 * 8192 is the actual alignment requirement - * but we must also align to page size. */ - *align = 2 * 12 * 8192; + *size += 6 * block_size; + for (i = 1; i < 10; i++) { + *align = 8 * i * block_size; + if (!(*align % 65536)) + break; + } } break; default: |