diff options
| author | Francisco Jerez <currojerez@riseup.net> | 2010-08-06 20:32:25 +0200 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2010-08-09 15:16:37 +1000 |
| commit | 4d1defd724485bb4cbecdcccf5c3fee5cd6a0d41 (patch) | |
| tree | 089a5a7b61b91c62a555a896736d405c7cf2e129 /drivers/gpu/drm/nouveau/nv30_fb.c | |
| parent | 0746b5da53af533e3e525aeea47d1020c8f99c67 (diff) | |
drm/nv30: Fix PFB init for nv31.
Fixes a regression introduced by 58bbb63720c8997e0136fe1884101e7ca40d68fd
(fdo bug 29324).
Reported-by: Johannes Obermayr <johannesobermayr@gmx.de>
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv30_fb.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv30_fb.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/gpu/drm/nouveau/nv30_fb.c b/drivers/gpu/drm/nouveau/nv30_fb.c index 9d35c8b3b83..4a3f2f09512 100644 --- a/drivers/gpu/drm/nouveau/nv30_fb.c +++ b/drivers/gpu/drm/nouveau/nv30_fb.c @@ -30,15 +30,25 @@ #include "nouveau_drm.h" static int -calc_ref(int b, int l, int i) +calc_bias(struct drm_device *dev, int k, int i, int j) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + int b = (dev_priv->chipset > 0x30 ? + nv_rd32(dev, 0x122c + 0x10 * k + 0x4 * j) >> (4 * (i ^ 1)) : + 0) & 0xf; + + return 2 * (b & 0x8 ? b - 0x10 : b); +} + +static int +calc_ref(struct drm_device *dev, int l, int k, int i) { int j, x = 0; for (j = 0; j < 4; j++) { - int n = (b >> (8 * j) & 0xf); - int m = (l >> (8 * i) & 0xff) + 2 * (n & 0x8 ? n - 0x10 : n); + int m = (l >> (8 * i) & 0xff) + calc_bias(dev, k, i, j); - x |= (0x80 | (m & 0x1f)) << (8 * j); + x |= (0x80 | clamp(m, 0, 0x1f)) << (8 * j); } return x; @@ -63,18 +73,16 @@ nv30_fb_init(struct drm_device *dev) dev_priv->chipset == 0x35) { /* Related to ROP count */ int n = (dev_priv->chipset == 0x31 ? 2 : 4); - int b = (dev_priv->chipset > 0x30 ? - nv_rd32(dev, 0x122c) & 0xf : 0); int l = nv_rd32(dev, 0x1003d0); for (i = 0; i < n; i++) { for (j = 0; j < 3; j++) nv_wr32(dev, 0x10037c + 0xc * i + 0x4 * j, - calc_ref(b, l, j)); + calc_ref(dev, l, 0, j)); for (j = 0; j < 2; j++) nv_wr32(dev, 0x1003ac + 0x8 * i + 0x4 * j, - calc_ref(b, l, j)); + calc_ref(dev, l, 1, j)); } } |