diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2011-01-11 14:52:40 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2011-02-25 06:44:04 +1000 |
| commit | 7948758d27be1b69b6a79ed4f3f22e36a3b95965 (patch) | |
| tree | b308749b1bab10164d5ae268ee5ed7fc923bf381 /drivers/gpu/drm/nouveau/nv40_fb.c | |
| parent | 58e6c7a9183071b89b0ac94862f369ed55775a7a (diff) | |
drm/nv40: implement support for on-chip PCIEGART
v2. moved nv44 pciegart table back to instmem, where it's not
accessible by userspace clients.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv40_fb.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv40_fb.c | 59 |
1 files changed, 53 insertions, 6 deletions
diff --git a/drivers/gpu/drm/nouveau/nv40_fb.c b/drivers/gpu/drm/nouveau/nv40_fb.c index f3d9c0505f7b..f0ac2a768c67 100644 --- a/drivers/gpu/drm/nouveau/nv40_fb.c +++ b/drivers/gpu/drm/nouveau/nv40_fb.c @@ -24,6 +24,53 @@ nv40_fb_set_tile_region(struct drm_device *dev, int i) } } +static void +nv40_fb_init_gart(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpuobj *gart = dev_priv->gart_info.sg_ctxdma; + + if (dev_priv->gart_info.type != NOUVEAU_GART_HW) { + nv_wr32(dev, 0x100800, 0x00000001); + return; + } + + nv_wr32(dev, 0x100800, gart->pinst | 0x00000002); + nv_mask(dev, 0x10008c, 0x00000100, 0x00000100); + nv_wr32(dev, 0x100820, 0x00000000); +} + +static void +nv44_fb_init_gart(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpuobj *gart = dev_priv->gart_info.sg_ctxdma; + u32 vinst; + + if (dev_priv->gart_info.type != NOUVEAU_GART_HW) { + nv_wr32(dev, 0x100850, 0x80000000); + nv_wr32(dev, 0x100800, 0x00000001); + return; + } + + /* calculate vram address of this PRAMIN block, object + * must be allocated on 512KiB alignment, and not exceed + * a total size of 512KiB for this to work correctly + */ + vinst = nv_rd32(dev, 0x10020c); + vinst -= ((gart->pinst >> 19) + 1) << 19; + + nv_wr32(dev, 0x100850, 0x80000000); + nv_wr32(dev, 0x100818, dev_priv->gart_info.dummy.addr); + + nv_wr32(dev, 0x100804, dev_priv->gart_info.aper_size); + nv_wr32(dev, 0x100850, 0x00008000); + nv_mask(dev, 0x10008c, 0x00000200, 0x00000200); + nv_wr32(dev, 0x100820, 0x00000000); + nv_wr32(dev, 0x10082c, 0x00000001); + nv_wr32(dev, 0x100800, vinst | 0x00000010); +} + int nv40_fb_init(struct drm_device *dev) { @@ -32,12 +79,12 @@ nv40_fb_init(struct drm_device *dev) uint32_t tmp; int i; - /* This is strictly a NV4x register (don't know about NV5x). */ - /* The blob sets these to all kinds of values, and they mess up our setup. */ - /* I got value 0x52802 instead. For some cards the blob even sets it back to 0x1. */ - /* Note: the blob doesn't read this value, so i'm pretty sure this is safe for all cards. */ - /* Any idea what this is? */ - nv_wr32(dev, NV40_PFB_UNK_800, 0x1); + if (dev_priv->chipset != 0x40 && dev_priv->chipset != 0x45) { + if (nv44_graph_class(dev)) + nv44_fb_init_gart(dev); + else + nv40_fb_init_gart(dev); + } switch (dev_priv->chipset) { case 0x40: |