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authorBen Skeggs <bskeggs@redhat.com>2012-05-01 16:48:50 +1000
committerBen Skeggs <bskeggs@redhat.com>2012-05-24 16:56:10 +1000
commita226c32a386bca0426e500954b79e3fd46afc0d9 (patch)
treec7b72f1f93a955f637a78bbf19caac01b6552cbf /drivers
parent5511d490da02b73c4c2144c7a2d368634caca67f (diff)
downloadlinux-a226c32a386bca0426e500954b79e3fd46afc0d9.tar.bz2
drm/nv50/graph: remove ability to do interrupt-driven context switching
We never turn this on, no point maintaining the code for it.. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/nouveau/nv50_graph.c65
1 files changed, 0 insertions, 65 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_graph.c b/drivers/gpu/drm/nouveau/nv50_graph.c
index 69be4d190778..46b2c95de4d0 100644
--- a/drivers/gpu/drm/nouveau/nv50_graph.c
+++ b/drivers/gpu/drm/nouveau/nv50_graph.c
@@ -40,47 +40,6 @@ struct nv50_graph_engine {
};
static int
-nv50_graph_do_load_context(struct drm_device *dev, uint32_t inst)
-{
- uint32_t fifo = nv_rd32(dev, 0x400500);
-
- nv_wr32(dev, 0x400500, fifo & ~1);
- nv_wr32(dev, 0x400784, inst);
- nv_wr32(dev, 0x400824, nv_rd32(dev, 0x400824) | 0x40);
- nv_wr32(dev, 0x400320, nv_rd32(dev, 0x400320) | 0x11);
- nv_wr32(dev, 0x400040, 0xffffffff);
- (void)nv_rd32(dev, 0x400040);
- nv_wr32(dev, 0x400040, 0x00000000);
- nv_wr32(dev, 0x400304, nv_rd32(dev, 0x400304) | 1);
-
- if (nouveau_wait_for_idle(dev))
- nv_wr32(dev, 0x40032c, inst | (1<<31));
- nv_wr32(dev, 0x400500, fifo);
-
- return 0;
-}
-
-static int
-nv50_graph_unload_context(struct drm_device *dev)
-{
- uint32_t inst;
-
- inst = nv_rd32(dev, NV50_PGRAPH_CTXCTL_CUR);
- if (!(inst & NV50_PGRAPH_CTXCTL_CUR_LOADED))
- return 0;
- inst &= NV50_PGRAPH_CTXCTL_CUR_INSTANCE;
-
- nouveau_wait_for_idle(dev);
- nv_wr32(dev, 0x400784, inst);
- nv_wr32(dev, 0x400824, nv_rd32(dev, 0x400824) | 0x20);
- nv_wr32(dev, 0x400304, nv_rd32(dev, 0x400304) | 0x01);
- nouveau_wait_for_idle(dev);
-
- nv_wr32(dev, NV50_PGRAPH_CTXCTL_CUR, inst);
- return 0;
-}
-
-static int
nv50_graph_init(struct drm_device *dev, int engine)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
@@ -255,21 +214,6 @@ nv50_graph_object_new(struct nouveau_channel *chan, int engine,
}
static void
-nv50_graph_context_switch(struct drm_device *dev)
-{
- uint32_t inst;
-
- nv50_graph_unload_context(dev);
-
- inst = nv_rd32(dev, NV50_PGRAPH_CTXCTL_NEXT);
- inst &= NV50_PGRAPH_CTXCTL_NEXT_INSTANCE;
- nv50_graph_do_load_context(dev, inst);
-
- nv_wr32(dev, NV40_PGRAPH_INTR_EN, nv_rd32(dev,
- NV40_PGRAPH_INTR_EN) | NV_PGRAPH_INTR_CONTEXT_SWITCH);
-}
-
-static void
nv50_graph_tlb_flush(struct drm_device *dev, int engine)
{
nv50_vm_flush_engine(dev, 0);
@@ -805,15 +749,6 @@ nv50_graph_isr(struct drm_device *dev)
show &= ~0x00000010;
}
- if (stat & 0x00001000) {
- nv_wr32(dev, 0x400500, 0x00000000);
- nv_wr32(dev, 0x400100, 0x00001000);
- nv_mask(dev, 0x40013c, 0x00001000, 0x00000000);
- nv50_graph_context_switch(dev);
- stat &= ~0x00001000;
- show &= ~0x00001000;
- }
-
show = (show && nouveau_ratelimit()) ? show : 0;
if (show & 0x00100000) {