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authorFrancisco Jerez <currojerez@riseup.net>2009-12-16 12:12:27 +0100
committerDave Airlie <airlied@redhat.com>2010-01-11 05:41:03 +0100
commit0d87c100312ce75d9bb75a456d8a542e84a1722f (patch)
tree8b3820900997e3b50f2e015cdcdd1932c5cab173 /drivers/gpu/drm/nouveau/nv40_fb.c
parentdrm/nouveau: Add cache_flush/pull fifo engine functions. (diff)
downloadlinux-0d87c100312ce75d9bb75a456d8a542e84a1722f.tar.xz
linux-0d87c100312ce75d9bb75a456d8a542e84a1722f.zip
drm/nouveau: Pre-G80 tiling support.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv40_fb.c')
-rw-r--r--drivers/gpu/drm/nouveau/nv40_fb.c53
1 files changed, 33 insertions, 20 deletions
diff --git a/drivers/gpu/drm/nouveau/nv40_fb.c b/drivers/gpu/drm/nouveau/nv40_fb.c
index ca1d27107a8e..3cd07d8d5bd7 100644
--- a/drivers/gpu/drm/nouveau/nv40_fb.c
+++ b/drivers/gpu/drm/nouveau/nv40_fb.c
@@ -3,12 +3,37 @@
#include "nouveau_drv.h"
#include "nouveau_drm.h"
+void
+nv40_fb_set_region_tiling(struct drm_device *dev, int i, uint32_t addr,
+ uint32_t size, uint32_t pitch)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ uint32_t limit = max(1u, addr + size) - 1;
+
+ if (pitch)
+ addr |= 1;
+
+ switch (dev_priv->chipset) {
+ case 0x40:
+ nv_wr32(dev, NV10_PFB_TLIMIT(i), limit);
+ nv_wr32(dev, NV10_PFB_TSIZE(i), pitch);
+ nv_wr32(dev, NV10_PFB_TILE(i), addr);
+ break;
+
+ default:
+ nv_wr32(dev, NV40_PFB_TLIMIT(i), limit);
+ nv_wr32(dev, NV40_PFB_TSIZE(i), pitch);
+ nv_wr32(dev, NV40_PFB_TILE(i), addr);
+ break;
+ }
+}
+
int
nv40_fb_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
- uint32_t fb_bar_size, tmp;
- int num_tiles;
+ struct nouveau_fb_engine *pfb = &dev_priv->engine.fb;
+ uint32_t tmp;
int i;
/* This is strictly a NV4x register (don't know about NV5x). */
@@ -23,35 +48,23 @@ nv40_fb_init(struct drm_device *dev)
case 0x45:
tmp = nv_rd32(dev, NV10_PFB_CLOSE_PAGE2);
nv_wr32(dev, NV10_PFB_CLOSE_PAGE2, tmp & ~(1 << 15));
- num_tiles = NV10_PFB_TILE__SIZE;
+ pfb->num_tiles = NV10_PFB_TILE__SIZE;
break;
case 0x46: /* G72 */
case 0x47: /* G70 */
case 0x49: /* G71 */
case 0x4b: /* G73 */
case 0x4c: /* C51 (G7X version) */
- num_tiles = NV40_PFB_TILE__SIZE_1;
+ pfb->num_tiles = NV40_PFB_TILE__SIZE_1;
break;
default:
- num_tiles = NV40_PFB_TILE__SIZE_0;
+ pfb->num_tiles = NV40_PFB_TILE__SIZE_0;
break;
}
- fb_bar_size = drm_get_resource_len(dev, 0) - 1;
- switch (dev_priv->chipset) {
- case 0x40:
- for (i = 0; i < num_tiles; i++) {
- nv_wr32(dev, NV10_PFB_TILE(i), 0);
- nv_wr32(dev, NV10_PFB_TLIMIT(i), fb_bar_size);
- }
- break;
- default:
- for (i = 0; i < num_tiles; i++) {
- nv_wr32(dev, NV40_PFB_TILE(i), 0);
- nv_wr32(dev, NV40_PFB_TLIMIT(i), fb_bar_size);
- }
- break;
- }
+ /* Turn all the tiling regions off. */
+ for (i = 0; i < pfb->num_tiles; i++)
+ pfb->set_region_tiling(dev, i, 0, 0, 0);
return 0;
}