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authorBen Skeggs <bskeggs@redhat.com>2012-03-21 13:57:40 +1000
committerBen Skeggs <bskeggs@redhat.com>2012-03-22 17:17:50 +1000
commit664695ae6f8b2b72aa5820aa20f4d65016cb3fd0 (patch)
tree38d731bc4028424e65844160ff87571776208d5e /drivers/gpu/drm/nouveau
parent48aca13f0167ae78c28c6b48d82a157a6692eecb (diff)
drm/nouveau: inform userspace of new kernel subchannel requirements
All available subchannels are now available for userspace to do with as it pleases on NVC0+. On all earlier chipsets, the kernel still uses a software object on subc 0 to implement the page flip completion method. I hope to find some decent way of addressing this too, but it's a tad tricker prior to fermi. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_channel.c15
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_dma.h4
2 files changed, 6 insertions, 13 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_channel.c b/drivers/gpu/drm/nouveau/nouveau_channel.c
index 337e228629ed..44e6416d4a33 100644
--- a/drivers/gpu/drm/nouveau/nouveau_channel.c
+++ b/drivers/gpu/drm/nouveau/nouveau_channel.c
@@ -436,18 +436,11 @@ nouveau_ioctl_fifo_alloc(struct drm_device *dev, void *data,
}
if (dev_priv->card_type < NV_C0) {
- init->subchan[0].handle = NvM2MF;
- if (dev_priv->card_type < NV_50)
- init->subchan[0].grclass = 0x0039;
- else
- init->subchan[0].grclass = 0x5039;
- init->subchan[1].handle = NvSw;
- init->subchan[1].grclass = NV_SW;
- init->nr_subchan = 2;
- } else {
- init->subchan[0].handle = 0x9039;
- init->subchan[0].grclass = 0x9039;
+ init->subchan[0].handle = NvSw;
+ init->subchan[0].grclass = NV_SW;
init->nr_subchan = 1;
+ } else {
+ init->nr_subchan = 0;
}
/* Named memory object area */
diff --git a/drivers/gpu/drm/nouveau/nouveau_dma.h b/drivers/gpu/drm/nouveau/nouveau_dma.h
index 23d4edf992b7..bcf0fd9e313e 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dma.h
+++ b/drivers/gpu/drm/nouveau/nouveau_dma.h
@@ -48,8 +48,8 @@ void nv50_dma_push(struct nouveau_channel *, struct nouveau_bo *,
/* Hardcoded object assignments to subchannels (subchannel id). */
enum {
- NvSubM2MF = 0,
- NvSubSw = 1,
+ NvSubSw = 0,
+ NvSubM2MF = 1,
NvSub2D = 2,
NvSubCtxSurf2D = 2,
NvSubGdiRect = 3,