diff options
Diffstat (limited to 'shared-core/nouveau_irq.c')
| -rw-r--r-- | shared-core/nouveau_irq.c | 37 |
1 files changed, 24 insertions, 13 deletions
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) |