diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2013-02-26 12:02:54 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2013-03-04 11:46:13 +1000 |
| commit | 67f9718b084ea7100cefa39b02863fcb14102f8c (patch) | |
| tree | 30a5f8ce78f0c76b66b4cb47c89316b530b28c77 | |
| parent | f6853faa85793bf23b46787e4039824d275453c2 (diff) | |
| download | linux-security-67f9718b084ea7100cefa39b02863fcb14102f8c.tar.gz | |
drm/nv84: fix regression in page flipping
Need to emit the semaphore ctxdma before trying to use the semaphore
operations.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_display.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index a6237c9cbbc30c..e26caf63db0cbc 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -512,11 +512,11 @@ nv50_display_flip_next(struct drm_crtc *crtc, struct drm_framebuffer *fb, /* synchronise with the rendering channel, if necessary */ if (likely(chan)) { - ret = RING_SPACE(chan, 10); - if (ret) - return ret; - if (nv_mclass(chan->object) < NV84_CHANNEL_IND_CLASS) { + ret = RING_SPACE(chan, 8); + if (ret) + return ret; + BEGIN_NV04(chan, 0, NV11_SUBCHAN_DMA_SEMAPHORE, 2); OUT_RING (chan, NvEvoSema0 + nv_crtc->index); OUT_RING (chan, sync->sem.offset); @@ -525,13 +525,17 @@ nv50_display_flip_next(struct drm_crtc *crtc, struct drm_framebuffer *fb, BEGIN_NV04(chan, 0, NV11_SUBCHAN_SEMAPHORE_OFFSET, 2); OUT_RING (chan, sync->sem.offset ^ 0x10); OUT_RING (chan, 0x74b1e000); - BEGIN_NV04(chan, 0, NV11_SUBCHAN_DMA_SEMAPHORE, 1); - OUT_RING (chan, NvSema); } else if (nv_mclass(chan->object) < NVC0_CHANNEL_IND_CLASS) { u64 offset = nv84_fence_crtc(chan, nv_crtc->index); offset += sync->sem.offset; + ret = RING_SPACE(chan, 12); + if (ret) + return ret; + + BEGIN_NV04(chan, 0, NV11_SUBCHAN_DMA_SEMAPHORE, 1); + OUT_RING (chan, chan->vram); BEGIN_NV04(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4); OUT_RING (chan, upper_32_bits(offset)); OUT_RING (chan, lower_32_bits(offset)); @@ -546,6 +550,10 @@ nv50_display_flip_next(struct drm_crtc *crtc, struct drm_framebuffer *fb, u64 offset = nv84_fence_crtc(chan, nv_crtc->index); offset += sync->sem.offset; + ret = RING_SPACE(chan, 10); + if (ret) + return ret; + BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4); OUT_RING (chan, upper_32_bits(offset)); OUT_RING (chan, lower_32_bits(offset)); |