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-rw-r--r--shared-core/nouveau_drv.h3
-rw-r--r--shared-core/nouveau_fifo.c1
-rw-r--r--shared-core/nouveau_irq.c37
3 files changed, 28 insertions, 13 deletions
diff --git a/shared-core/nouveau_drv.h b/shared-core/nouveau_drv.h
index 7f012d65..1cf13ef7 100644
--- a/shared-core/nouveau_drv.h
+++ b/shared-core/nouveau_drv.h
@@ -89,6 +89,9 @@ struct nouveau_fifo
struct mem_block *ramin_grctx;
/* objects belonging to this fifo */
struct nouveau_object *objs;
+
+ /* XXX move this in PGRAPH struct */
+ uint32_t pgraph_ctx_user;
};
struct nouveau_config {
diff --git a/shared-core/nouveau_fifo.c b/shared-core/nouveau_fifo.c
index ebaa5b88..0e47da08 100644
--- a/shared-core/nouveau_fifo.c
+++ b/shared-core/nouveau_fifo.c
@@ -489,6 +489,7 @@ static int nouveau_fifo_alloc(drm_device_t* dev,drm_nouveau_fifo_alloc_t* init,
init->channel = i;
init->put_base = 0;
dev_priv->cur_fifo = init->channel;
+ dev_priv->fifos[i].pgraph_ctx_user = i << 24;
nouveau_wait_for_idle(dev);
diff --git a/shared-core/nouveau_irq.c b/shared-core/nouveau_irq.c
index 160016ea..7a31fb0b 100644
--- a/shared-core/nouveau_irq.c
+++ b/shared-core/nouveau_irq.c
@@ -240,21 +240,32 @@ static void nouveau_nv04_context_switch(drm_device_t *dev)
static void nouveau_nv10_context_switch(drm_device_t *dev)
{
drm_nouveau_private_t *dev_priv = dev->dev_private;
- int channel;
+ int channel, channel_old;
channel=NV_READ(NV_PFIFO_CACH1_PSH1)&(nouveau_fifo_number(dev)-1);
- /* 2-channel commute */
-// if (channel==0)
-// channel=1;
-// else
-// channel=0;
-// dev_priv->cur_fifo=channel;
-
-// NV_WRITE(NV_PGRAPH_CTX_CONTROL, 0x10000100);
- NV_WRITE(NV_PGRAPH_CTX_USER, NV_READ(NV_PGRAPH_CTX_USER)|0x1F000000);
-// NV_WRITE(NV_PGRAPH_FFINTFC_ST2, NV_READ(NV_PGRAPH_FFINTFC_ST2)&0xCFFFFFFF);
- /* touch PGRAPH_CTX_SWITCH* here ? */
- NV_WRITE(NV_PGRAPH_CTX_CONTROL, 0x10000100);
+ channel_old = (NV_READ(NV_PGRAPH_CTX_USER) >> 24) & (nouveau_fifo_number(dev)-1);
+
+ DRM_INFO("NV: PGRAPH context switch interrupt channel %x -> %x\n",channel_old, channel);
+
+ NV_WRITE(NV_PGRAPH_FIFO,0x0);
+ NV_WRITE(NV_PFIFO_CACH1_PUL0, 0x00000000);
+ NV_WRITE(NV_PFIFO_CACH1_PUL1, 0x00000000);
+ NV_WRITE(NV_PFIFO_CACHES, 0x00000000);
+
+ dev_priv->fifos[channel_old].pgraph_ctx_user = NV_READ(NV_PGRAPH_CTX_USER);
+ //XXX save PGRAPH context
+ NV_WRITE(NV_PGRAPH_CTX_CONTROL, 0x10000000);
+ NV_WRITE(NV_PGRAPH_CTX_USER, dev_priv->fifos[channel].pgraph_ctx_user);
+ //XXX restore PGRAPH context
+ printk("ctx_user %x %x\n", dev_priv->fifos[channel_old].pgraph_ctx_user, dev_priv->fifos[channel].pgraph_ctx_user);
+
+ NV_WRITE(NV_PGRAPH_FFINTFC_ST2, NV_READ(NV_PGRAPH_FFINTFC_ST2)&0xCFFFFFFF);
+ NV_WRITE(NV_PGRAPH_CTX_CONTROL, 0x10010100);
+
+ NV_WRITE(NV_PFIFO_CACH1_PUL0, 0x00000001);
+ NV_WRITE(NV_PFIFO_CACH1_PUL1, 0x00000001);
+ NV_WRITE(NV_PFIFO_CACHES, 0x00000001);
+ NV_WRITE(NV_PGRAPH_FIFO,0x1);
}
static void nouveau_pgraph_irq_handler(drm_device_t *dev)