drm/nv50/gr: refactor initialisation
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nv50_graph.c b/drivers/gpu/drm/nouveau/nv50_graph.c
index d43c46c..8c979b3 100644
--- a/drivers/gpu/drm/nouveau/nv50_graph.c
+++ b/drivers/gpu/drm/nouveau/nv50_graph.c
@@ -120,70 +120,62 @@
return 0;
}
-static void
-nv50_graph_init_reset(struct drm_device *dev)
-{
- uint32_t pmc_e = NV_PMC_ENABLE_PGRAPH | (1 << 21);
- NV_DEBUG(dev, "\n");
-
- nv_wr32(dev, NV03_PMC_ENABLE, nv_rd32(dev, NV03_PMC_ENABLE) & ~pmc_e);
- nv_wr32(dev, NV03_PMC_ENABLE, nv_rd32(dev, NV03_PMC_ENABLE) | pmc_e);
-}
-
-static void
-nv50_graph_init_intr(struct drm_device *dev)
-{
- NV_DEBUG(dev, "\n");
-
- nv_wr32(dev, NV03_PGRAPH_INTR, 0xffffffff);
- nv_wr32(dev, 0x400138, 0xffffffff);
- nv_wr32(dev, NV40_PGRAPH_INTR_EN, 0xffffffff);
-}
-
-static void
-nv50_graph_init_regs__nv(struct drm_device *dev)
+static int
+nv50_graph_init(struct drm_device *dev, int engine)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
- uint32_t units = nv_rd32(dev, 0x1540);
+ struct nv50_graph_engine *pgraph = nv_engine(dev, engine);
+ u32 units = nv_rd32(dev, 0x001540);
int i;
NV_DEBUG(dev, "\n");
+ /* master reset */
+ nv_mask(dev, 0x000200, 0x00200100, 0x00000000);
+ nv_mask(dev, 0x000200, 0x00200100, 0x00200100);
+ nv_wr32(dev, 0x40008c, 0x00000004); /* HW_CTX_SWITCH_ENABLED */
+
+ /* reset/enable traps and interrupts */
nv_wr32(dev, 0x400804, 0xc0000000);
nv_wr32(dev, 0x406800, 0xc0000000);
nv_wr32(dev, 0x400c04, 0xc0000000);
nv_wr32(dev, 0x401800, 0xc0000000);
nv_wr32(dev, 0x405018, 0xc0000000);
nv_wr32(dev, 0x402000, 0xc0000000);
-
for (i = 0; i < 16; i++) {
- if (units & 1 << i) {
- if (dev_priv->chipset < 0xa0) {
- nv_wr32(dev, 0x408900 + (i << 12), 0xc0000000);
- nv_wr32(dev, 0x408e08 + (i << 12), 0xc0000000);
- nv_wr32(dev, 0x408314 + (i << 12), 0xc0000000);
- } else {
- nv_wr32(dev, 0x408600 + (i << 11), 0xc0000000);
- nv_wr32(dev, 0x408708 + (i << 11), 0xc0000000);
- nv_wr32(dev, 0x40831c + (i << 11), 0xc0000000);
- }
+ if (!(units & (1 << i)))
+ continue;
+
+ if (dev_priv->chipset < 0xa0) {
+ nv_wr32(dev, 0x408900 + (i << 12), 0xc0000000);
+ nv_wr32(dev, 0x408e08 + (i << 12), 0xc0000000);
+ nv_wr32(dev, 0x408314 + (i << 12), 0xc0000000);
+ } else {
+ nv_wr32(dev, 0x408600 + (i << 11), 0xc0000000);
+ nv_wr32(dev, 0x408708 + (i << 11), 0xc0000000);
+ nv_wr32(dev, 0x40831c + (i << 11), 0xc0000000);
}
}
nv_wr32(dev, 0x400108, 0xffffffff);
-
- nv_wr32(dev, 0x400824, 0x00004000);
+ nv_wr32(dev, 0x400138, 0xffffffff);
+ nv_wr32(dev, 0x400100, 0xffffffff);
+ nv_wr32(dev, 0x40013c, 0xffffffff);
nv_wr32(dev, 0x400500, 0x00010001);
-}
-static void
-nv50_graph_init_zcull(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- int i;
+ /* upload context program, initialise ctxctl defaults */
+ nv_wr32(dev, 0x400324, 0x00000000);
+ for (i = 0; i < pgraph->ctxprog_size; i++)
+ nv_wr32(dev, 0x400328, pgraph->ctxprog[i]);
+ nv_wr32(dev, 0x400824, 0x00000000);
+ nv_wr32(dev, 0x400828, 0x00000000);
+ nv_wr32(dev, 0x40082c, 0x00000000);
+ nv_wr32(dev, 0x400830, 0x00000000);
+ nv_wr32(dev, 0x400724, 0x00000000);
+ nv_wr32(dev, 0x40032c, 0x00000000);
+ nv_wr32(dev, 0x400320, 4); /* CTXCTL_CMD = NEWCTXDMA */
- NV_DEBUG(dev, "\n");
-
+ /* some unknown zcull magic */
switch (dev_priv->chipset & 0xf0) {
case 0x50:
case 0x80:
@@ -212,43 +204,7 @@
nv_wr32(dev, 0x402c28 + (i * 8), 0x00000000);
nv_wr32(dev, 0x402c2c + (i * 8), 0x00000000);
}
-}
-static int
-nv50_graph_init_ctxctl(struct drm_device *dev)
-{
- struct nv50_graph_engine *pgraph = nv_engine(dev, NVOBJ_ENGINE_GR);
- int i;
-
- NV_DEBUG(dev, "\n");
-
- nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_INDEX, 0);
- for (i = 0; i < pgraph->ctxprog_size; i++)
- nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_DATA, pgraph->ctxprog[i]);
-
- nv_wr32(dev, 0x40008c, 0x00000004); /* HW_CTX_SWITCH_ENABLED */
- nv_wr32(dev, 0x400320, 4);
- nv_wr32(dev, NV40_PGRAPH_CTXCTL_CUR, 0);
- nv_wr32(dev, NV20_PGRAPH_CHANNEL_CTX_POINTER, 0);
- return 0;
-}
-
-static int
-nv50_graph_init(struct drm_device *dev, int engine)
-{
- int ret;
-
- NV_DEBUG(dev, "\n");
-
- nv50_graph_init_reset(dev);
- nv50_graph_init_regs__nv(dev);
- nv50_graph_init_zcull(dev);
-
- ret = nv50_graph_init_ctxctl(dev);
- if (ret)
- return ret;
-
- nv50_graph_init_intr(dev);
return 0;
}