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authorBen Skeggs <bskeggs@redhat.com>2012-03-21 13:53:49 +1000
committerBen Skeggs <bskeggs@redhat.com>2012-03-22 17:17:40 +1000
commitd5316e251230c4e54a157349a362229c3d4daa32 (patch)
treea5371432d01ac0ef54c4c402c901a0fc1f2d2323 /drivers
parentb08abd4e9a11d637d3c2ff52b2ebbc1b3f686d06 (diff)
downloadlinux-d5316e251230c4e54a157349a362229c3d4daa32.tar.bz2
drm/nvc0-/disp: reimplement flip completion method as fifo method
Removes need for M2MF subchannel usage on NVC0+. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_display.c14
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_drv.h1
-rw-r--r--drivers/gpu/drm/nouveau/nvc0_fifo.c36
-rw-r--r--drivers/gpu/drm/nouveau/nvc0_graph.c9
4 files changed, 42 insertions, 18 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 35acc92f647b..ab447275da28 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -438,15 +438,19 @@ nouveau_page_flip_emit(struct nouveau_channel *chan,
goto fail;
/* Emit the pageflip */
- ret = RING_SPACE(chan, 2);
+ ret = RING_SPACE(chan, 3);
if (ret)
goto fail;
- if (dev_priv->card_type < NV_C0)
+ if (dev_priv->card_type < NV_C0) {
BEGIN_RING(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
- else
- BEGIN_NVC0(chan, 2, NvSubM2MF, 0x0500, 1);
- OUT_RING (chan, 0);
+ OUT_RING (chan, 0x00000000);
+ OUT_RING (chan, 0x00000000);
+ } else {
+ BEGIN_NVC0(chan, 2, 0, NV10_SUBCHAN_REF_CNT, 1);
+ OUT_RING (chan, ++chan->fence.sequence);
+ BEGIN_NVC0(chan, 8, 0, NVSW_SUBCHAN_PAGE_FLIP, 0x0000);
+ }
FIRE_RING (chan);
ret = nouveau_fence_new(chan, pfence, true);
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index eaf9872f9ee2..3dd620fc7837 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -1775,6 +1775,7 @@ nv44_graph_class(struct drm_device *dev)
#define NV84_SUBCHAN_NOTIFY_INTR 0x00000020
#define NV84_SUBCHAN_WRCACHE_FLUSH 0x00000024
#define NV10_SUBCHAN_REF_CNT 0x00000050
+#define NVSW_SUBCHAN_PAGE_FLIP 0x00000054
#define NV11_SUBCHAN_DMA_SEMAPHORE 0x00000060
#define NV11_SUBCHAN_SEMAPHORE_OFFSET 0x00000064
#define NV11_SUBCHAN_SEMAPHORE_ACQUIRE 0x00000068
diff --git a/drivers/gpu/drm/nouveau/nvc0_fifo.c b/drivers/gpu/drm/nouveau/nvc0_fifo.c
index dcbe0d5d0241..50d68a7a1379 100644
--- a/drivers/gpu/drm/nouveau/nvc0_fifo.c
+++ b/drivers/gpu/drm/nouveau/nvc0_fifo.c
@@ -436,6 +436,24 @@ nvc0_fifo_isr_vm_fault(struct drm_device *dev, int unit)
printk(" on channel 0x%010llx\n", (u64)inst << 12);
}
+static int
+nvc0_fifo_page_flip(struct drm_device *dev, u32 chid)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_channel *chan = NULL;
+ unsigned long flags;
+ int ret = -EINVAL;
+
+ spin_lock_irqsave(&dev_priv->channels.lock, flags);
+ if (likely(chid >= 0 && chid < dev_priv->engine.fifo.channels)) {
+ chan = dev_priv->channels.ptr[chid];
+ if (likely(chan))
+ ret = nouveau_finish_page_flip(chan, NULL);
+ }
+ spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
+ return ret;
+}
+
static void
nvc0_fifo_isr_subfifo_intr(struct drm_device *dev, int unit)
{
@@ -445,11 +463,21 @@ nvc0_fifo_isr_subfifo_intr(struct drm_device *dev, int unit)
u32 chid = nv_rd32(dev, 0x040120 + (unit * 0x2000)) & 0x7f;
u32 subc = (addr & 0x00070000);
u32 mthd = (addr & 0x00003ffc);
+ u32 show = stat;
- NV_INFO(dev, "PSUBFIFO %d:", unit);
- nouveau_bitfield_print(nvc0_fifo_subfifo_intr, stat);
- NV_INFO(dev, "PSUBFIFO %d: ch %d subc %d mthd 0x%04x data 0x%08x\n",
- unit, chid, subc, mthd, data);
+ if (stat & 0x00200000) {
+ if (mthd == 0x0054) {
+ if (!nvc0_fifo_page_flip(dev, chid))
+ show &= ~0x00200000;
+ }
+ }
+
+ if (show) {
+ NV_INFO(dev, "PFIFO%d:", unit);
+ nouveau_bitfield_print(nvc0_fifo_subfifo_intr, show);
+ NV_INFO(dev, "PFIFO%d: ch %d subc %d mthd 0x%04x data 0x%08x\n",
+ unit, chid, subc, mthd, data);
+ }
nv_wr32(dev, 0x0400c0 + (unit * 0x2000), 0x80600008);
nv_wr32(dev, 0x040108 + (unit * 0x2000), stat);
diff --git a/drivers/gpu/drm/nouveau/nvc0_graph.c b/drivers/gpu/drm/nouveau/nvc0_graph.c
index 8ee3963f9030..9066102d1159 100644
--- a/drivers/gpu/drm/nouveau/nvc0_graph.c
+++ b/drivers/gpu/drm/nouveau/nvc0_graph.c
@@ -333,14 +333,6 @@ nvc0_graph_fini(struct drm_device *dev, int engine, bool suspend)
return 0;
}
-static int
-nvc0_graph_mthd_page_flip(struct nouveau_channel *chan,
- u32 class, u32 mthd, u32 data)
-{
- nouveau_finish_page_flip(chan, NULL);
- return 0;
-}
-
static void
nvc0_graph_init_obj418880(struct drm_device *dev)
{
@@ -889,7 +881,6 @@ nvc0_graph_create(struct drm_device *dev)
NVOBJ_CLASS(dev, 0x902d, GR); /* 2D */
NVOBJ_CLASS(dev, 0x9039, GR); /* M2MF */
- NVOBJ_MTHD (dev, 0x9039, 0x0500, nvc0_graph_mthd_page_flip);
NVOBJ_CLASS(dev, 0x9097, GR); /* 3D */
if (fermi >= 0x9197)
NVOBJ_CLASS(dev, 0x9197, GR); /* 3D (NVC1-) */