summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--linux-core/Makefile.kernel2
-rw-r--r--shared-core/nouveau_drv.h8
-rw-r--r--shared-core/nouveau_fifo.c139
-rw-r--r--shared-core/nouveau_reg.h15
-rw-r--r--shared-core/nv30_graph.c243
5 files changed, 369 insertions, 38 deletions
diff --git a/linux-core/Makefile.kernel b/linux-core/Makefile.kernel
index b4ac2642..30df582c 100644
--- a/linux-core/Makefile.kernel
+++ b/linux-core/Makefile.kernel
@@ -22,7 +22,7 @@ i830-objs := i830_drv.o i830_dma.o i830_irq.o
i915-objs := i915_drv.o i915_dma.o i915_irq.o i915_mem.o i915_fence.o \
i915_buffer.o
nouveau-objs := nouveau_drv.o nouveau_state.o nouveau_fifo.o nouveau_mem.o \
- nouveau_object.o nouveau_irq.o nv40_graph.o
+ nouveau_object.o nouveau_irq.o nv30_graph.o nv40_graph.o
radeon-objs := radeon_drv.o radeon_cp.o radeon_state.o radeon_mem.o radeon_irq.o r300_cmdbuf.o
sis-objs := sis_drv.o sis_mm.o
ffb-objs := ffb_drv.o ffb_context.o
diff --git a/shared-core/nouveau_drv.h b/shared-core/nouveau_drv.h
index 6b09046c..219ba123 100644
--- a/shared-core/nouveau_drv.h
+++ b/shared-core/nouveau_drv.h
@@ -142,6 +142,10 @@ typedef struct drm_nouveau_private {
struct mem_block *fb_nomap_heap;
struct mem_block *ramin_heap;
+ /* context table pointed to be NV_PGRAPH_CHANNEL_CTX_TABLE (0x400780) */
+ uint32_t ctx_table_size;
+ struct mem_block *ctx_table;
+
struct nouveau_config config;
}
drm_nouveau_private_t;
@@ -198,6 +202,10 @@ extern void nouveau_irq_preinstall(drm_device_t*);
extern void nouveau_irq_postinstall(drm_device_t*);
extern void nouveau_irq_uninstall(drm_device_t*);
+/* nv30_graph.c */
+extern int nv30_graph_init(drm_device_t *dev);
+extern int nv30_graph_context_create(drm_device_t *dev, int channel);
+
/* nv40_graph.c */
extern int nv40_graph_init(drm_device_t *dev);
extern int nv40_graph_context_create(drm_device_t *dev, int channel);
diff --git a/shared-core/nouveau_fifo.c b/shared-core/nouveau_fifo.c
index e5f825e6..d41972b2 100644
--- a/shared-core/nouveau_fifo.c
+++ b/shared-core/nouveau_fifo.c
@@ -265,9 +265,9 @@ nouveau_fifo_cmdbuf_alloc(struct drm_device *dev, int channel)
#define RAMFC_WR(offset, val) NV_WRITE(fifoctx + NV04_RAMFC_##offset, (val))
static void nouveau_nv04_context_init(drm_device_t *dev,
- drm_nouveau_fifo_alloc_t *init)
+ drm_nouveau_fifo_alloc_t *init)
{
- drm_nouveau_private_t *dev_priv = dev->dev_private;
+ drm_nouveau_private_t *dev_priv = dev->dev_private;
struct nouveau_object *cb_obj;
uint32_t fifoctx, ctx_size = 32;
int i;
@@ -275,53 +275,109 @@ static void nouveau_nv04_context_init(drm_device_t *dev,
cb_obj = dev_priv->fifos[init->channel].cmdbuf_obj;
fifoctx=NV_RAMIN+dev_priv->ramfc_offset+init->channel*ctx_size;
- // clear the fifo context
- for(i=0;i<ctx_size/4;i++)
- NV_WRITE(fifoctx+4*i,0x0);
+
+ // clear the fifo context
+ for(i=0;i<ctx_size/4;i++)
+ NV_WRITE(fifoctx+4*i,0x0);
- RAMFC_WR(DMA_PUT , init->put_base);
+ RAMFC_WR(DMA_PUT , init->put_base);
RAMFC_WR(DMA_GET , init->put_base);
RAMFC_WR(DMA_INSTANCE , nouveau_chip_instance_get(dev, cb_obj->instance));
#ifdef __BIG_ENDIAN
- RAMFC_WR(DMA_FETCH, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES|NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES|NV_PFIFO_CACH1_DMAF_MAX_REQS_4|NV_PFIFO_CACH1_BIG_ENDIAN);
+ RAMFC_WR(DMA_FETCH, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES |
+ NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES |
+ NV_PFIFO_CACH1_DMAF_MAX_REQS_4 |
+ NV_PFIFO_CACH1_BIG_ENDIAN);
#else
- RAMFC_WR(DMA_FETCH, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES|NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES|NV_PFIFO_CACH1_DMAF_MAX_REQS_4);
+ RAMFC_WR(DMA_FETCH, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES |
+ NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES |
+ NV_PFIFO_CACH1_DMAF_MAX_REQS_4);
#endif
}
#undef RAMFC_WR
#define RAMFC_WR(offset, val) NV_WRITE(fifoctx + NV10_RAMFC_##offset, (val))
static void nouveau_nv10_context_init(drm_device_t *dev,
- drm_nouveau_fifo_alloc_t *init)
+ drm_nouveau_fifo_alloc_t *init)
{
- drm_nouveau_private_t *dev_priv = dev->dev_private;
+ drm_nouveau_private_t *dev_priv = dev->dev_private;
+ struct nouveau_object *cb_obj;
+ uint32_t fifoctx;
+ int i;
+ cb_obj = dev_priv->fifos[init->channel].cmdbuf_obj;
+ fifoctx = NV_RAMIN + dev_priv->ramfc_offset + init->channel*64;
+
+ for (i=0;i<64;i+=4)
+ NV_WRITE(fifoctx + i, 0);
+
+ /* Fill entries that are seen filled in dumps of nvidia driver just
+ * after channel's is put into DMA mode
+ */
+
+ RAMFC_WR(DMA_PUT , init->put_base);
+ RAMFC_WR(DMA_GET , init->put_base);
+ RAMFC_WR(DMA_INSTANCE , nouveau_chip_instance_get(dev,
+ cb_obj->instance));
+#ifdef __BIG_ENDIAN
+ RAMFC_WR(DMA_FETCH, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES |
+ NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES |
+ NV_PFIFO_CACH1_DMAF_MAX_REQS_4 |
+ NV_PFIFO_CACH1_BIG_ENDIAN);
+#else
+
+ RAMFC_WR(DMA_FETCH, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES |
+ NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES |
+ NV_PFIFO_CACH1_DMAF_MAX_REQS_4);
+#endif
+
+ RAMFC_WR(DMA_SUBROUTINE, 0);
+
+}
+
+static void nouveau_nv30_context_init(drm_device_t *dev,
+ drm_nouveau_fifo_alloc_t *init)
+{
+ drm_nouveau_private_t *dev_priv = dev->dev_private;
+ struct nouveau_fifo *chan = &dev_priv->fifos[init->channel];
struct nouveau_object *cb_obj;
- uint32_t fifoctx;
+ uint32_t fifoctx, grctx_inst, cb_inst, ctx_size = 64;
int i;
- cb_obj = dev_priv->fifos[init->channel].cmdbuf_obj;
- fifoctx = NV_RAMIN + dev_priv->ramfc_offset + init->channel*64;
- for (i=0;i<64;i+=4)
- NV_WRITE(fifoctx + i, 0);
-
- /* Fill entries that are seen filled in dumps of nvidia driver just
- * after channel's is put into DMA mode
- */
- RAMFC_WR(DMA_PUT , init->put_base);
- RAMFC_WR(DMA_GET , init->put_base);
- RAMFC_WR(DMA_INSTANCE , nouveau_chip_instance_get(dev,
- cb_obj->instance));
+ cb_obj = dev_priv->fifos[init->channel].cmdbuf_obj;
+ cb_inst = nouveau_chip_instance_get(dev, chan->cmdbuf_obj->instance);
+ grctx_inst = nouveau_chip_instance_get(dev, chan->ramin_grctx);
+ fifoctx = NV_RAMIN + dev_priv->ramfc_offset + init->channel * ctx_size;
+
+ for (i = 0; i < ctx_size; i += 4)
+ NV_WRITE(fifoctx + i, 0);
+
+ RAMFC_WR(DMA_PUT, init->put_base);
+ RAMFC_WR(DMA_GET, init->put_base);
+ RAMFC_WR(REF_CNT, NV_READ(NV_PFIFO_CACH1_REF_CNT));
+ RAMFC_WR(DMA_INSTANCE, cb_inst);
+ RAMFC_WR(DMA_STATE, NV_READ(NV_PFIFO_CACH1_DMAS));
+ RAMFC_WR(DMA_FETCH, NV_PFIFO_CACH1_DMAF_TRIG_128_BYTES |
+ NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES |
+ NV_PFIFO_CACH1_DMAF_MAX_REQS_8 |
#ifdef __BIG_ENDIAN
- RAMFC_WR(DMA_FETCH, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES |
- NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES |
- NV_PFIFO_CACH1_DMAF_MAX_REQS_4 |
- NV_PFIFO_CACH1_BIG_ENDIAN);
+ NV_PFIFO_CACH1_BIG_ENDIAN |
#else
- RAMFC_WR(DMA_FETCH, NV_PFIFO_CACH1_DMAF_TRIG_112_BYTES |
- NV_PFIFO_CACH1_DMAF_SIZE_128_BYTES |
- NV_PFIFO_CACH1_DMAF_MAX_REQS_4);
+ 0x00000000);
#endif
- RAMFC_WR(DMA_SUBROUTINE, 0);
+
+ RAMFC_WR(ENGINE, NV_READ(NV_PFIFO_CACH1_ENG));
+ RAMFC_WR(PULL1_ENGINE, NV_READ(NV_PFIFO_CACH1_PUL1));
+ RAMFC_WR(ACQUIRE_VALUE, NV_READ(NV_PFIFO_CACH1_ACQUIRE_VALUE));
+ RAMFC_WR(ACQUIRE_TIMESTAMP, NV_READ(NV_PFIFO_CACH1_ACQUIRE_TIMESTAMP));
+ RAMFC_WR(ACQUIRE_TIMEOUT, NV_READ(NV_PFIFO_CACH1_ACQUIRE_TIMEOUT));
+ RAMFC_WR(SEMAPHORE, NV_READ(NV_PFIFO_CACH1_SEMAPHORE));
+ NV_WRITE(NV_PGRAPH_CHANNEL_CTX_SIZE, grctx_inst); /* Misnomer. Really a ptr to the grctx */
+
+ /*
+ * TODO: We need to put this somewhere...
+ */
+ /* INSTANCE_WR(dev_priv->ctx_table, init->channel, grctx_inst); */
+ RAMFC_WR(DMA_SUBROUTINE, init->put_base);
}
static void nouveau_nv10_context_save(drm_device_t *dev)
@@ -498,8 +554,15 @@ static int nouveau_fifo_alloc(drm_device_t* dev,drm_nouveau_fifo_alloc_t* init,
/* Construct inital RAMFC for new channel */
if (dev_priv->card_type < NV_10) {
nouveau_nv04_context_init(dev, init);
- } else if (dev_priv->card_type < NV_40) {
- nouveau_nv10_context_init(dev, init);
+ } else if (dev_priv->card_type < NV_30) {
+ nouveau_nv10_context_init(dev, init);
+ } else if (dev_priv->card_type < NV_40) {
+ ret = nv30_graph_context_create(dev, init->channel);
+ if (ret) {
+ nouveau_fifo_free(dev, init->channel);
+ return ret;
+ }
+ nouveau_nv30_context_init(dev, init);
} else {
ret = nv40_graph_context_create(dev, init->channel);
if (ret) {
@@ -521,7 +584,7 @@ static int nouveau_fifo_alloc(drm_device_t* dev,drm_nouveau_fifo_alloc_t* init,
*/
if (dev_priv->fifo_alloc_count == 0) {
nouveau_fifo_context_restore(dev, init->channel);
- if (dev_priv->card_type >= NV_40) {
+ if (dev_priv->card_type >= NV_30) {
struct nouveau_fifo *chan;
uint32_t inst;
@@ -530,9 +593,11 @@ static int nouveau_fifo_alloc(drm_device_t* dev,drm_nouveau_fifo_alloc_t* init,
chan->ramin_grctx);
/* see comments in nv40_graph_context_restore() */
- NV_WRITE(0x400784, inst);
- NV_WRITE(0x40032C, inst | 0x01000000);
- NV_WRITE(NV40_PFIFO_GRCTX_INSTANCE, inst);
+ NV_WRITE(NV_PGRAPH_CHANNEL_CTX_SIZE, inst);
+ if (dev_priv->card_type >= NV_40) {
+ NV_WRITE(0x40032C, inst | 0x01000000);
+ NV_WRITE(NV40_PFIFO_GRCTX_INSTANCE, inst);
+ }
}
}
diff --git a/shared-core/nouveau_reg.h b/shared-core/nouveau_reg.h
index 23fce39a..97d81048 100644
--- a/shared-core/nouveau_reg.h
+++ b/shared-core/nouveau_reg.h
@@ -71,6 +71,21 @@
#define NV_PGRAPH_FIFO 0x00400720
#define NV_PGRAPH_FFINTFC_ST2 0x00400764
+/* NV-Register NV_PGRAPH_CHANNEL_CTX_TABLE */
+#define NV_PGRAPH_CHANNEL_CTX_TABLE 0x00400780
+#define NV_PGRAPH_CHANNEL_CTX_TABLE_INST 0x0000FFFF
+#define NV_PGRAPH_CHANNEL_CTX_TABLE_INST_0 0x00000000
+
+/* NV-Register NV_PGRAPH_CHANNEL_CTX_SIZE */
+#define NV_PGRAPH_CHANNEL_CTX_SIZE 0x00400784
+#define NV_PGRAPH_CHANNEL_CTX_SIZE_VALUE 0x0000FFFF
+#define NV_PGRAPH_CHANNEL_CTX_SIZE_VALUE_INIT 0x00001000
+
+/* NV-Register NV_PGRAPH_CHANNEL_CTX_POINTER */
+#define NV_PGRAPH_CHANNEL_CTX_POINTER 0x00400788
+#define NV_PGRAPH_CHANNEL_CTX_POINTER_INST 0x0000FFFF
+#define NV_PGRAPH_CHANNEL_CTX_POINTER_INST_0 0x00000000
+
/* It's a guess that this works on NV03. Confirmed on NV04, though */
#define NV_PFIFO_DELAY_0 0x00002040
#define NV_PFIFO_DMA_TIMESLICE 0x00002044
diff --git a/shared-core/nv30_graph.c b/shared-core/nv30_graph.c
new file mode 100644
index 00000000..dbc39490
--- /dev/null
+++ b/shared-core/nv30_graph.c
@@ -0,0 +1,243 @@
+/*
+ * Based on nv40_graph.c
+ * Someday this will all go away...
+ */
+#include "drmP.h"
+#include "drm.h"
+#include "nouveau_drv.h"
+#include "nouveau_drm.h"
+
+/*
+ * TODO: In the dump start seems to be 7654b0 while end is 76ac28.
+ * This is obviously not the correct size.
+ */
+#define NV30_GRCTX_SIZE (22392)
+
+/*TODO: deciper what each offset in the context represents. The below
+ * contexts are taken from dumps just after the 3D object is
+ * created.
+ */
+static void nv30_graph_context_init(drm_device_t *dev, struct mem_block *ctx)
+{
+ drm_nouveau_private_t *dev_priv = dev->dev_private;
+ int i;
+
+ INSTANCE_WR(ctx, 0x28/4, 0x10000000);
+ INSTANCE_WR(ctx, 0x40c/4, 0x00000101);
+ INSTANCE_WR(ctx, 0x420/4, 0x00000111);
+ INSTANCE_WR(ctx, 0x424/4, 0x00000060);
+ INSTANCE_WR(ctx, 0x440/4, 0x00000080);
+ INSTANCE_WR(ctx, 0x444/4, 0xffff0000);
+ INSTANCE_WR(ctx, 0x448/4, 0x00000001);
+ INSTANCE_WR(ctx, 0x45c/4, 0x44400000);
+ INSTANCE_WR(ctx, 0x448/4, 0xffff0000);
+ INSTANCE_WR(ctx, 0x4dc/4, 0xfff00000);
+ INSTANCE_WR(ctx, 0x4e0/4, 0xfff00000);
+ INSTANCE_WR(ctx, 0x4e8/4, 0x00011100);
+
+ for (i = 0x504; i <= 0x540; i += 4)
+ INSTANCE_WR(ctx, i/4, 0x7ff00000);
+
+ INSTANCE_WR(ctx, 0x54c/4, 0x4b7fffff);
+ INSTANCE_WR(ctx, 0x588/4, 0x00000080);
+ INSTANCE_WR(ctx, 0x58c/4, 0x30201000);
+ INSTANCE_WR(ctx, 0x590/4, 0x70605040);
+ INSTANCE_WR(ctx, 0x594/4, 0xb8a89888);
+ INSTANCE_WR(ctx, 0x598/4, 0xf8e8d8c8);
+ INSTANCE_WR(ctx, 0x5ac/4, 0xb0000000);
+
+ for (i = 0x604; i <= 0x640; i += 4)
+ INSTANCE_WR(ctx, i/4, 0x00010588);
+
+ for (i = 0x644; i <= 0x680; i += 4)
+ INSTANCE_WR(ctx, i/4, 0x00030303);
+
+ for (i = 0x6c4; i <= 0x700; i += 4)
+ INSTANCE_WR(ctx, i/4, 0x0008aae4);
+
+ for (i = 0x704; i <= 0x740; i += 4)
+ INSTANCE_WR(ctx, i/4, 0x1012000);
+
+ for (i = 0x744; i <= 0x780; i += 4)
+ INSTANCE_WR(ctx, i/4, 0x0080008);
+
+ INSTANCE_WR(ctx, 0x860/4, 0x00040000);
+ INSTANCE_WR(ctx, 0x864/4, 0x00010000);
+ INSTANCE_WR(ctx, 0x868/4, 0x00040000);
+ INSTANCE_WR(ctx, 0x86c/4, 0x00040000);
+ INSTANCE_WR(ctx, 0x870/4, 0x00040000);
+ INSTANCE_WR(ctx, 0x874/4, 0x00040000);
+
+ for (i = 0x00; i <= 0x1170; i += 0x10)
+ {
+ INSTANCE_WR(ctx, (0x1f24 + i)/4, 0x000c001b);
+ INSTANCE_WR(ctx, (0x1f20 + i)/4, 0x0436086c);
+ INSTANCE_WR(ctx, (0x1f1c + i)/4, 0x10700ff9);
+ }
+
+ INSTANCE_WR(ctx, 0x30bc/4, 0x0000ffff);
+ INSTANCE_WR(ctx, 0x30c0/4, 0x0000ffff);
+ INSTANCE_WR(ctx, 0x30c4/4, 0x0000ffff);
+ INSTANCE_WR(ctx, 0x30c8/4, 0x0000ffff);
+
+ INSTANCE_WR(ctx, 0x380c/4, 0x3f800000);
+ INSTANCE_WR(ctx, 0x3450/4, 0x3f800000);
+ INSTANCE_WR(ctx, 0x3820/4, 0x3f800000);
+ INSTANCE_WR(ctx, 0x3854/4, 0x3f800000);
+ INSTANCE_WR(ctx, 0x3850/4, 0x3f000000);
+ INSTANCE_WR(ctx, 0x384c/4, 0x40000000);
+ INSTANCE_WR(ctx, 0x3868/4, 0xbf800000);
+ INSTANCE_WR(ctx, 0x3860/4, 0x3f800000);
+ INSTANCE_WR(ctx, 0x386c/4, 0x40000000);
+ INSTANCE_WR(ctx, 0x3870/4, 0xbf800000);
+
+ for (i = 0x4e0; i <= 0x4e1c; i += 4)
+ INSTANCE_WR(ctx, i/4, 0x001c527d);
+ INSTANCE_WR(ctx, 0x4e40, 0x001c527c);
+
+ INSTANCE_WR(ctx, 0x5680/4, 0x000a0000);
+ INSTANCE_WR(ctx, 0x87c/4, 0x10000000);
+ INSTANCE_WR(ctx, 0x28/4, 0x10000011);
+}
+
+
+int
+nv30_graph_context_create(drm_device_t *dev, int channel)
+{
+ drm_nouveau_private_t *dev_priv =
+ (drm_nouveau_private_t *)dev->dev_private;
+ struct nouveau_fifo *chan = &dev_priv->fifos[channel];
+ void (*ctx_init)(drm_device_t *, struct mem_block *);
+ unsigned int ctx_size;
+ int i, chipset;
+
+ chipset = (NV_READ(NV_PMC_BOOT_0) & 0x0ff00000) >> 20;
+ switch (chipset) {
+ default:
+ ctx_size = NV30_GRCTX_SIZE;
+ ctx_init = nv30_graph_context_init;
+ break;
+ }
+
+ /* Alloc and clear RAMIN to store the context */
+ chan->ramin_grctx = nouveau_instmem_alloc(dev, ctx_size, 4);
+ if (!chan->ramin_grctx)
+ return DRM_ERR(ENOMEM);
+ for (i=0; i<ctx_size; i+=4)
+ INSTANCE_WR(chan->ramin_grctx, i/4, 0x00000000);
+
+ /* Initialise default context values */
+ ctx_init(dev, chan->ramin_grctx);
+
+ return 0;
+}
+#if 0
+/* Save current context (from PGRAPH) into the channel's context
+ *XXX: fails sometimes, not sure why..
+ */
+void
+nv40_graph_context_save_current(drm_device_t *dev)
+{
+ drm_nouveau_private_t *dev_priv =
+ (drm_nouveau_private_t *)dev->dev_private;
+ uint32_t instance;
+ int i;
+
+ NV_WRITE(NV_PGRAPH_FIFO, 0);
+
+ instance = NV_READ(0x40032C) & 0xFFFFF;
+ if (!instance) {
+ NV_WRITE(NV_PGRAPH_FIFO, 1);
+ return;
+ }
+
+ NV_WRITE(0x400784, instance);
+ NV_WRITE(0x400310, NV_READ(0x400310) | 0x20);
+ NV_WRITE(0x400304, 1);
+ /* just in case, we don't want to spin in-kernel forever */
+ for (i=0; i<1000; i++) {
+ if (NV_READ(0x40030C) == 0)
+ break;
+ }
+ if (i==1000) {
+ DRM_ERROR("failed to save current grctx to ramin\n");
+ DRM_ERROR("instance = 0x%08x\n", NV_READ(0x40032C));
+ DRM_ERROR("0x40030C = 0x%08x\n", NV_READ(0x40030C));
+ NV_WRITE(NV_PGRAPH_FIFO, 1);
+ return;
+ }
+
+ NV_WRITE(NV_PGRAPH_FIFO, 1);
+}
+
+/* Restore the context for a specific channel into PGRAPH
+ * XXX: fails sometimes.. not sure why
+ */
+void
+nv40_graph_context_restore(drm_device_t *dev, int channel)
+{
+ drm_nouveau_private_t *dev_priv =
+ (drm_nouveau_private_t *)dev->dev_private;
+ struct nouveau_fifo *chan = &dev_priv->fifos[channel];
+ uint32_t instance;
+ int i;
+
+ instance = nouveau_chip_instance_get(dev, chan->ramin_grctx);
+
+ NV_WRITE(NV_PGRAPH_FIFO, 0);
+ NV_WRITE(0x400784, instance);
+ NV_WRITE(0x400310, NV_READ(0x400310) | 0x40);
+ NV_WRITE(0x400304, 1);
+ /* just in case, we don't want to spin in-kernel forever */
+ for (i=0; i<1000; i++) {
+ if (NV_READ(0x40030C) == 0)
+ break;
+ }
+ if (i==1000) {
+ DRM_ERROR("failed to restore grctx for ch%d to PGRAPH\n",
+ channel);
+ DRM_ERROR("instance = 0x%08x\n", instance);
+ DRM_ERROR("0x40030C = 0x%08x\n", NV_READ(0x40030C));
+ NV_WRITE(NV_PGRAPH_FIFO, 1);
+ return;
+ }
+
+
+ /* 0x40032C, no idea of it's exact function. Could simply be a
+ * record of the currently active PGRAPH context. It's currently
+ * unknown as to what bit 24 does. The nv ddx has it set, so we will
+ * set it here too.
+ */
+ NV_WRITE(0x40032C, instance | 0x01000000);
+ /* 0x32E0 records the instance address of the active FIFO's PGRAPH
+ * context. If at any time this doesn't match 0x40032C, you will
+ * recieve PGRAPH_INTR_CONTEXT_SWITCH
+ */
+ NV_WRITE(NV40_PFIFO_GRCTX_INSTANCE, instance);
+ NV_WRITE(NV_PGRAPH_FIFO, 1);
+}
+#endif
+int
+nv30_graph_init(drm_device_t *dev)
+{
+ drm_nouveau_private_t *dev_priv =
+ (drm_nouveau_private_t *)dev->dev_private;
+ int i, chipset;
+
+ chipset = (NV_READ(NV_PMC_BOOT_0) & 0x0ff00000) >> 20;
+ DRM_DEBUG("chipset (from PMC_BOOT_0): NV%02X\n", chipset);
+
+ /* Create Context Pointer Table */
+ dev_priv->ctx_table_size = 32 * 4;
+ dev_priv->ctx_table = nouveau_instmem_alloc(dev, dev_priv->ctx_table_size, 4);
+ if (!dev_priv->ctx_table)
+ return DRM_ERR(ENOMEM);
+
+ for (i=0; i< dev_priv->ctx_table_size; i+=4)
+ INSTANCE_WR(dev_priv->ctx_table, i/4, 0x00000000);
+
+ NV_WRITE(NV_PGRAPH_CHANNEL_CTX_TABLE, nouveau_chip_instance_get(dev, dev_priv->ctx_table));
+
+ return 0;
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-19 21:25:50 +0000