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authorFrancisco Jerez <currojerez@riseup.net>2010-08-04 04:54:08 +0200
committerBen Skeggs <bskeggs@redhat.com>2010-08-06 00:34:51 +0200
commitd2f4e89254b5816925a207a221e6b26100357eea (patch)
tree0c3fc2fe0343b4ab81297e42177b5b82afc91516 /drivers
parentdrm/nouveau: Ack the context switch interrupt before switching contexts. (diff)
downloadlinux-d2f4e89254b5816925a207a221e6b26100357eea.tar.xz
linux-d2f4e89254b5816925a207a221e6b26100357eea.zip
drm/nv10: Fix up switching of NV10TCL_DMA_VTXBUF.
Not very nice, but I don't think there's a simpler workaround. Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_reg.h18
-rw-r--r--drivers/gpu/drm/nouveau/nv10_graph.c175
2 files changed, 132 insertions, 61 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_reg.h b/drivers/gpu/drm/nouveau/nouveau_reg.h
index 9c1056cb8a90..21a6e453b975 100644
--- a/drivers/gpu/drm/nouveau/nouveau_reg.h
+++ b/drivers/gpu/drm/nouveau/nouveau_reg.h
@@ -220,28 +220,21 @@
# define NV_PGRAPH_INTR_ERROR (1<<20)
#define NV10_PGRAPH_CTX_CONTROL 0x00400144
#define NV10_PGRAPH_CTX_USER 0x00400148
-#define NV10_PGRAPH_CTX_SWITCH1 0x0040014C
-#define NV10_PGRAPH_CTX_SWITCH2 0x00400150
-#define NV10_PGRAPH_CTX_SWITCH3 0x00400154
-#define NV10_PGRAPH_CTX_SWITCH4 0x00400158
-#define NV10_PGRAPH_CTX_SWITCH5 0x0040015C
+#define NV10_PGRAPH_CTX_SWITCH(i) (0x0040014C + 0x4*(i))
#define NV04_PGRAPH_CTX_SWITCH1 0x00400160
-#define NV10_PGRAPH_CTX_CACHE1 0x00400160
+#define NV10_PGRAPH_CTX_CACHE(i, j) (0x00400160 \
+ + 0x4*(i) + 0x20*(j))
#define NV04_PGRAPH_CTX_SWITCH2 0x00400164
#define NV04_PGRAPH_CTX_SWITCH3 0x00400168
#define NV04_PGRAPH_CTX_SWITCH4 0x0040016C
#define NV04_PGRAPH_CTX_CONTROL 0x00400170
#define NV04_PGRAPH_CTX_USER 0x00400174
#define NV04_PGRAPH_CTX_CACHE1 0x00400180
-#define NV10_PGRAPH_CTX_CACHE2 0x00400180
#define NV03_PGRAPH_CTX_CONTROL 0x00400190
#define NV03_PGRAPH_CTX_USER 0x00400194
#define NV04_PGRAPH_CTX_CACHE2 0x004001A0
-#define NV10_PGRAPH_CTX_CACHE3 0x004001A0
#define NV04_PGRAPH_CTX_CACHE3 0x004001C0
-#define NV10_PGRAPH_CTX_CACHE4 0x004001C0
#define NV04_PGRAPH_CTX_CACHE4 0x004001E0
-#define NV10_PGRAPH_CTX_CACHE5 0x004001E0
#define NV40_PGRAPH_CTXCTL_0304 0x00400304
#define NV40_PGRAPH_CTXCTL_0304_XFER_CTX 0x00000001
#define NV40_PGRAPH_CTXCTL_UCODE_STAT 0x00400308
@@ -356,9 +349,12 @@
#define NV04_PGRAPH_FFINTFC_ST2 0x00400754
#define NV10_PGRAPH_RDI_DATA 0x00400754
#define NV04_PGRAPH_DMA_PITCH 0x00400760
-#define NV10_PGRAPH_FFINTFC_ST2 0x00400764
+#define NV10_PGRAPH_FFINTFC_FIFO_PTR 0x00400760
#define NV04_PGRAPH_DVD_COLORFMT 0x00400764
+#define NV10_PGRAPH_FFINTFC_ST2 0x00400764
#define NV04_PGRAPH_SCALED_FORMAT 0x00400768
+#define NV10_PGRAPH_FFINTFC_ST2_DL 0x00400768
+#define NV10_PGRAPH_FFINTFC_ST2_DH 0x0040076c
#define NV10_PGRAPH_DMA_PITCH 0x00400770
#define NV10_PGRAPH_DVD_COLORFMT 0x00400774
#define NV10_PGRAPH_SCALED_FORMAT 0x00400778
diff --git a/drivers/gpu/drm/nouveau/nv10_graph.c b/drivers/gpu/drm/nouveau/nv10_graph.c
index fcf2cdd19493..b2f6a57c0cc5 100644
--- a/drivers/gpu/drm/nouveau/nv10_graph.c
+++ b/drivers/gpu/drm/nouveau/nv10_graph.c
@@ -43,51 +43,51 @@ struct pipe_state {
};
static int nv10_graph_ctx_regs[] = {
- NV10_PGRAPH_CTX_SWITCH1,
- NV10_PGRAPH_CTX_SWITCH2,
- NV10_PGRAPH_CTX_SWITCH3,
- NV10_PGRAPH_CTX_SWITCH4,
- NV10_PGRAPH_CTX_SWITCH5,
- NV10_PGRAPH_CTX_CACHE1, /* 8 values from 0x400160 to 0x40017c */
- NV10_PGRAPH_CTX_CACHE2, /* 8 values from 0x400180 to 0x40019c */
- NV10_PGRAPH_CTX_CACHE3, /* 8 values from 0x4001a0 to 0x4001bc */
- NV10_PGRAPH_CTX_CACHE4, /* 8 values from 0x4001c0 to 0x4001dc */
- NV10_PGRAPH_CTX_CACHE5, /* 8 values from 0x4001e0 to 0x4001fc */
- 0x00400164,
- 0x00400184,
- 0x004001a4,
- 0x004001c4,
- 0x004001e4,
- 0x00400168,
- 0x00400188,
- 0x004001a8,
- 0x004001c8,
- 0x004001e8,
- 0x0040016c,
- 0x0040018c,
- 0x004001ac,
- 0x004001cc,
- 0x004001ec,
- 0x00400170,
- 0x00400190,
- 0x004001b0,
- 0x004001d0,
- 0x004001f0,
- 0x00400174,
- 0x00400194,
- 0x004001b4,
- 0x004001d4,
- 0x004001f4,
- 0x00400178,
- 0x00400198,
- 0x004001b8,
- 0x004001d8,
- 0x004001f8,
- 0x0040017c,
- 0x0040019c,
- 0x004001bc,
- 0x004001dc,
- 0x004001fc,
+ NV10_PGRAPH_CTX_SWITCH(0),
+ NV10_PGRAPH_CTX_SWITCH(1),
+ NV10_PGRAPH_CTX_SWITCH(2),
+ NV10_PGRAPH_CTX_SWITCH(3),
+ NV10_PGRAPH_CTX_SWITCH(4),
+ NV10_PGRAPH_CTX_CACHE(0, 0),
+ NV10_PGRAPH_CTX_CACHE(0, 1),
+ NV10_PGRAPH_CTX_CACHE(0, 2),
+ NV10_PGRAPH_CTX_CACHE(0, 3),
+ NV10_PGRAPH_CTX_CACHE(0, 4),
+ NV10_PGRAPH_CTX_CACHE(1, 0),
+ NV10_PGRAPH_CTX_CACHE(1, 1),
+ NV10_PGRAPH_CTX_CACHE(1, 2),
+ NV10_PGRAPH_CTX_CACHE(1, 3),
+ NV10_PGRAPH_CTX_CACHE(1, 4),
+ NV10_PGRAPH_CTX_CACHE(2, 0),
+ NV10_PGRAPH_CTX_CACHE(2, 1),
+ NV10_PGRAPH_CTX_CACHE(2, 2),
+ NV10_PGRAPH_CTX_CACHE(2, 3),
+ NV10_PGRAPH_CTX_CACHE(2, 4),
+ NV10_PGRAPH_CTX_CACHE(3, 0),
+ NV10_PGRAPH_CTX_CACHE(3, 1),
+ NV10_PGRAPH_CTX_CACHE(3, 2),
+ NV10_PGRAPH_CTX_CACHE(3, 3),
+ NV10_PGRAPH_CTX_CACHE(3, 4),
+ NV10_PGRAPH_CTX_CACHE(4, 0),
+ NV10_PGRAPH_CTX_CACHE(4, 1),
+ NV10_PGRAPH_CTX_CACHE(4, 2),
+ NV10_PGRAPH_CTX_CACHE(4, 3),
+ NV10_PGRAPH_CTX_CACHE(4, 4),
+ NV10_PGRAPH_CTX_CACHE(5, 0),
+ NV10_PGRAPH_CTX_CACHE(5, 1),
+ NV10_PGRAPH_CTX_CACHE(5, 2),
+ NV10_PGRAPH_CTX_CACHE(5, 3),
+ NV10_PGRAPH_CTX_CACHE(5, 4),
+ NV10_PGRAPH_CTX_CACHE(6, 0),
+ NV10_PGRAPH_CTX_CACHE(6, 1),
+ NV10_PGRAPH_CTX_CACHE(6, 2),
+ NV10_PGRAPH_CTX_CACHE(6, 3),
+ NV10_PGRAPH_CTX_CACHE(6, 4),
+ NV10_PGRAPH_CTX_CACHE(7, 0),
+ NV10_PGRAPH_CTX_CACHE(7, 1),
+ NV10_PGRAPH_CTX_CACHE(7, 2),
+ NV10_PGRAPH_CTX_CACHE(7, 3),
+ NV10_PGRAPH_CTX_CACHE(7, 4),
NV10_PGRAPH_CTX_USER,
NV04_PGRAPH_DMA_START_0,
NV04_PGRAPH_DMA_START_1,
@@ -653,6 +653,78 @@ static int nv17_graph_ctx_regs_find_offset(struct drm_device *dev, int reg)
return -1;
}
+static void nv10_graph_load_dma_vtxbuf(struct nouveau_channel *chan,
+ uint32_t inst)
+{
+ struct drm_device *dev = chan->dev;
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph;
+ uint32_t st2, st2_dl, st2_dh, fifo_ptr, fifo[0x60/4];
+ uint32_t ctx_user, ctx_switch[5];
+ int i, subchan = -1;
+
+ /* NV10TCL_DMA_VTXBUF (method 0x18c) modifies hidden state
+ * that cannot be restored via MMIO. Do it through the FIFO
+ * instead.
+ */
+
+ /* Look for a celsius object */
+ for (i = 0; i < 8; i++) {
+ int class = nv_rd32(dev, NV10_PGRAPH_CTX_CACHE(i, 0)) & 0xfff;
+
+ if (class == 0x56 || class == 0x96 || class == 0x99) {
+ subchan = i;
+ break;
+ }
+ }
+
+ if (subchan < 0 || !inst)
+ return;
+
+ /* Save the current ctx object */
+ ctx_user = nv_rd32(dev, NV10_PGRAPH_CTX_USER);
+ for (i = 0; i < 5; i++)
+ ctx_switch[i] = nv_rd32(dev, NV10_PGRAPH_CTX_SWITCH(i));
+
+ /* Save the FIFO state */
+ st2 = nv_rd32(dev, NV10_PGRAPH_FFINTFC_ST2);
+ st2_dl = nv_rd32(dev, NV10_PGRAPH_FFINTFC_ST2_DL);
+ st2_dh = nv_rd32(dev, NV10_PGRAPH_FFINTFC_ST2_DH);
+ fifo_ptr = nv_rd32(dev, NV10_PGRAPH_FFINTFC_FIFO_PTR);
+
+ for (i = 0; i < ARRAY_SIZE(fifo); i++)
+ fifo[i] = nv_rd32(dev, 0x4007a0 + 4 * i);
+
+ /* Switch to the celsius subchannel */
+ for (i = 0; i < 5; i++)
+ nv_wr32(dev, NV10_PGRAPH_CTX_SWITCH(i),
+ nv_rd32(dev, NV10_PGRAPH_CTX_CACHE(subchan, i)));
+ nv_mask(dev, NV10_PGRAPH_CTX_USER, 0xe000, subchan << 13);
+
+ /* Inject NV10TCL_DMA_VTXBUF */
+ nv_wr32(dev, NV10_PGRAPH_FFINTFC_FIFO_PTR, 0);
+ nv_wr32(dev, NV10_PGRAPH_FFINTFC_ST2,
+ 0x2c000000 | chan->id << 20 | subchan << 16 | 0x18c);
+ nv_wr32(dev, NV10_PGRAPH_FFINTFC_ST2_DL, inst);
+ nv_mask(dev, NV10_PGRAPH_CTX_CONTROL, 0, 0x10000);
+ pgraph->fifo_access(dev, true);
+ pgraph->fifo_access(dev, false);
+
+ /* Restore the FIFO state */
+ for (i = 0; i < ARRAY_SIZE(fifo); i++)
+ nv_wr32(dev, 0x4007a0 + 4 * i, fifo[i]);
+
+ nv_wr32(dev, NV10_PGRAPH_FFINTFC_FIFO_PTR, fifo_ptr);
+ nv_wr32(dev, NV10_PGRAPH_FFINTFC_ST2, st2);
+ nv_wr32(dev, NV10_PGRAPH_FFINTFC_ST2_DL, st2_dl);
+ nv_wr32(dev, NV10_PGRAPH_FFINTFC_ST2_DH, st2_dh);
+
+ /* Restore the current ctx object */
+ for (i = 0; i < 5; i++)
+ nv_wr32(dev, NV10_PGRAPH_CTX_SWITCH(i), ctx_switch[i]);
+ nv_wr32(dev, NV10_PGRAPH_CTX_USER, ctx_user);
+}
+
int nv10_graph_load_context(struct nouveau_channel *chan)
{
struct drm_device *dev = chan->dev;
@@ -670,6 +742,8 @@ int nv10_graph_load_context(struct nouveau_channel *chan)
}
nv10_graph_load_pipe(chan);
+ nv10_graph_load_dma_vtxbuf(chan, (nv_rd32(dev, NV10_PGRAPH_GLOBALSTATE1)
+ & 0xffff));
nv_wr32(dev, NV10_PGRAPH_CTX_CONTROL, 0x10010100);
tmp = nv_rd32(dev, NV10_PGRAPH_CTX_USER);
@@ -856,11 +930,12 @@ int nv10_graph_init(struct drm_device *dev)
for (i = 0; i < NV10_PFB_TILE__SIZE; i++)
nv10_graph_set_region_tiling(dev, i, 0, 0, 0);
- nv_wr32(dev, NV10_PGRAPH_CTX_SWITCH1, 0x00000000);
- nv_wr32(dev, NV10_PGRAPH_CTX_SWITCH2, 0x00000000);
- nv_wr32(dev, NV10_PGRAPH_CTX_SWITCH3, 0x00000000);
- nv_wr32(dev, NV10_PGRAPH_CTX_SWITCH4, 0x00000000);
- nv_wr32(dev, NV10_PGRAPH_STATE , 0xFFFFFFFF);
+ nv_wr32(dev, NV10_PGRAPH_CTX_SWITCH(0), 0x00000000);
+ nv_wr32(dev, NV10_PGRAPH_CTX_SWITCH(1), 0x00000000);
+ nv_wr32(dev, NV10_PGRAPH_CTX_SWITCH(2), 0x00000000);
+ nv_wr32(dev, NV10_PGRAPH_CTX_SWITCH(3), 0x00000000);
+ nv_wr32(dev, NV10_PGRAPH_CTX_SWITCH(4), 0x00000000);
+ nv_wr32(dev, NV10_PGRAPH_STATE, 0xFFFFFFFF);
tmp = nv_rd32(dev, NV10_PGRAPH_CTX_USER) & 0x00ffffff;
tmp |= (dev_priv->engine.fifo.channels - 1) << 24;