diff options
| -rw-r--r-- | linux-core/Makefile.kernel | 3 | ||||
| l--------- | linux-core/nv40_graph.c | 1 | ||||
| -rw-r--r-- | shared-core/nouveau_drv.h | 28 | ||||
| -rw-r--r-- | shared-core/nv40_graph.c | 457 |
4 files changed, 478 insertions, 11 deletions
diff --git a/linux-core/Makefile.kernel b/linux-core/Makefile.kernel index 4b7c90be..b4ac2642 100644 --- a/linux-core/Makefile.kernel +++ b/linux-core/Makefile.kernel @@ -21,7 +21,8 @@ i810-objs := i810_drv.o i810_dma.o 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 +nouveau-objs := nouveau_drv.o nouveau_state.o nouveau_fifo.o nouveau_mem.o \ + nouveau_object.o nouveau_irq.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/linux-core/nv40_graph.c b/linux-core/nv40_graph.c new file mode 120000 index 00000000..2fe59919 --- /dev/null +++ b/linux-core/nv40_graph.c @@ -0,0 +1 @@ +../shared-core/nv40_graph.c
\ No newline at end of file diff --git a/shared-core/nouveau_drv.h b/shared-core/nouveau_drv.h index 42397c32..a8108a8c 100644 --- a/shared-core/nouveau_drv.h +++ b/shared-core/nouveau_drv.h @@ -42,6 +42,16 @@ #include "nouveau_drm.h" #include "nouveau_reg.h" +struct mem_block { + struct mem_block *next; + struct mem_block *prev; + uint64_t start; + uint64_t size; + DRMFILE filp; /* 0: free, -1: heap, other: real files */ + int flags; + drm_local_map_t *map; +}; + enum nouveau_flags { NV_NFORCE =0x10000000, NV_NFORCE2 =0x20000000 @@ -75,20 +85,12 @@ struct nouveau_fifo /* dma object for the command buffer itself */ struct mem_block *cmdbuf_mem; struct nouveau_object *cmdbuf_obj; + /* PGRAPH context, for cards that keep it in RAMIN */ + struct mem_block *ramin_grctx; /* objects belonging to this fifo */ struct nouveau_object *objs; }; -struct mem_block { - struct mem_block *next; - struct mem_block *prev; - uint64_t start; - uint64_t size; - DRMFILE filp; /* 0: free, -1: heap, other: real files */ - int flags; - drm_local_map_t *map; -}; - struct nouveau_config { struct { int location; @@ -181,6 +183,12 @@ extern void nouveau_irq_preinstall(drm_device_t*); extern void nouveau_irq_postinstall(drm_device_t*); extern void nouveau_irq_uninstall(drm_device_t*); +/* nv40_graph.c */ +extern int nv40_graph_init(drm_device_t *dev); +extern int nv40_graph_context_create(drm_device_t *dev, int channel); +extern void nv40_graph_context_save_current(drm_device_t *dev); +extern void nv40_graph_context_restore(drm_device_t *dev, int channel); + extern long nouveau_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); diff --git a/shared-core/nv40_graph.c b/shared-core/nv40_graph.c new file mode 100644 index 00000000..14379fdd --- /dev/null +++ b/shared-core/nv40_graph.c @@ -0,0 +1,457 @@ +#include "drmP.h" +#include "drm.h" +#include "nouveau_drv.h" +#include "nouveau_drm.h" + +/* The sizes are taken from the difference between the start of two + * grctx addresses while running the nvidia driver. Probably slightly + * larger than they actually are, because of other objects being created + * between the contexts + */ +#define NV40_GRCTX_SIZE (175*1024) +#define NV44_GRCTX_SIZE (25*1024) + +/*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 nv40_graph_context_init(drm_device_t *dev, struct mem_block *ctx) +{ + drm_nouveau_private_t *dev_priv = dev->dev_private; + int i; + + /* Always has the "instance address" of itself at offset 0 */ + INSTANCE_WR(ctx, 0x00000/4, nouveau_chip_instance_get(dev, ctx)); + /* unknown */ + INSTANCE_WR(ctx, 0x00024/4, 0x0000ffff); + INSTANCE_WR(ctx, 0x00028/4, 0x0000ffff); + INSTANCE_WR(ctx, 0x00030/4, 0x00000001); + INSTANCE_WR(ctx, 0x0011c/4, 0x20010001); + INSTANCE_WR(ctx, 0x00120/4, 0x0f73ef00); + INSTANCE_WR(ctx, 0x00128/4, 0x02008821); + INSTANCE_WR(ctx, 0x0016c/4, 0x00000040); + INSTANCE_WR(ctx, 0x00170/4, 0x00000040); + INSTANCE_WR(ctx, 0x00174/4, 0x00000040); + INSTANCE_WR(ctx, 0x0017c/4, 0x80000000); + INSTANCE_WR(ctx, 0x00180/4, 0x80000000); + INSTANCE_WR(ctx, 0x00184/4, 0x80000000); + INSTANCE_WR(ctx, 0x00188/4, 0x80000000); + INSTANCE_WR(ctx, 0x0018c/4, 0x80000000); + INSTANCE_WR(ctx, 0x0019c/4, 0x00000040); + INSTANCE_WR(ctx, 0x001a0/4, 0x80000000); + INSTANCE_WR(ctx, 0x001b0/4, 0x80000000); + INSTANCE_WR(ctx, 0x001c0/4, 0x80000000); + INSTANCE_WR(ctx, 0x001d0/4, 0x0b0b0b0c); + INSTANCE_WR(ctx, 0x00340/4, 0x00040000); + INSTANCE_WR(ctx, 0x00350/4, 0x55555555); + INSTANCE_WR(ctx, 0x00354/4, 0x55555555); + INSTANCE_WR(ctx, 0x00358/4, 0x55555555); + INSTANCE_WR(ctx, 0x0035c/4, 0x55555555); + INSTANCE_WR(ctx, 0x00388/4, 0x00000008); + INSTANCE_WR(ctx, 0x0039c/4, 0x00000010); + INSTANCE_WR(ctx, 0x00480/4, 0x00000100); + INSTANCE_WR(ctx, 0x00494/4, 0x00000111); + INSTANCE_WR(ctx, 0x00498/4, 0x00080060); + INSTANCE_WR(ctx, 0x004b4/4, 0x00000080); + INSTANCE_WR(ctx, 0x004b8/4, 0xffff0000); + INSTANCE_WR(ctx, 0x004bc/4, 0x00000001); + INSTANCE_WR(ctx, 0x004d0/4, 0x46400000); + INSTANCE_WR(ctx, 0x004ec/4, 0xffff0000); + INSTANCE_WR(ctx, 0x004f8/4, 0x0fff0000); + INSTANCE_WR(ctx, 0x004fc/4, 0x0fff0000); + INSTANCE_WR(ctx, 0x00504/4, 0x00011100); + for (i=0x00520; i<=0x0055c; i+=4) + INSTANCE_WR(ctx, i/4, 0x07ff0000); + INSTANCE_WR(ctx, 0x00568/4, 0x4b7fffff); + INSTANCE_WR(ctx, 0x00594/4, 0x30201000); + INSTANCE_WR(ctx, 0x00598/4, 0x70605040); + INSTANCE_WR(ctx, 0x0059c/4, 0xb8a89888); + INSTANCE_WR(ctx, 0x005a0/4, 0xf8e8d8c8); + INSTANCE_WR(ctx, 0x005b4/4, 0x40100000); + INSTANCE_WR(ctx, 0x005cc/4, 0x00000004); + INSTANCE_WR(ctx, 0x005d8/4, 0x0000ffff); + INSTANCE_WR(ctx, 0x0060c/4, 0x435185d6); + INSTANCE_WR(ctx, 0x00610/4, 0x2155b699); + INSTANCE_WR(ctx, 0x00614/4, 0xfedcba98); + INSTANCE_WR(ctx, 0x00618/4, 0x00000098); + INSTANCE_WR(ctx, 0x00628/4, 0xffffffff); + INSTANCE_WR(ctx, 0x0062c/4, 0x00ff7000); + INSTANCE_WR(ctx, 0x00630/4, 0x0000ffff); + INSTANCE_WR(ctx, 0x00640/4, 0x00ff0000); + INSTANCE_WR(ctx, 0x0067c/4, 0x00ffff00); + /* 0x680-0x6BC - NV30_TCL_PRIMITIVE_3D_TX_ADDRESS_UNIT(0-15) */ + /* 0x6C0-0x6FC - NV30_TCL_PRIMITIVE_3D_TX_FORMAT_UNIT(0-15) */ + for (i=0x006C0; i<=0x006fc; i+=4) + INSTANCE_WR(ctx, i/4, 0x00018488); + /* 0x700-0x73C - NV30_TCL_PRIMITIVE_3D_TX_WRAP_UNIT(0-15) */ + for (i=0x00700; i<=0x0073c; i+=4) + INSTANCE_WR(ctx, i/4, 0x00028202); + /* 0x740-0x77C - NV30_TCL_PRIMITIVE_3D_TX_ENABLE_UNIT(0-15) */ + /* 0x780-0x7BC - NV30_TCL_PRIMITIVE_3D_TX_SWIZZLE_UNIT(0-15) */ + for (i=0x00780; i<=0x007bc; i+=4) + INSTANCE_WR(ctx, i/4, 0x0000aae4); + /* 0x7C0-0x7FC - NV30_TCL_PRIMITIVE_3D_TX_FILTER_UNIT(0-15) */ + for (i=0x007c0; i<=0x007fc; i+=4) + INSTANCE_WR(ctx, i/4, 0x01012000); + /* 0x800-0x83C - NV30_TCL_PRIMITIVE_3D_TX_XY_DIM_UNIT(0-15) */ + for (i=0x00800; i<=0x0083c; i+=4) + INSTANCE_WR(ctx, i/4, 0x00080008); + /* 0x840-0x87C - NV30_TCL_PRIMITIVE_3D_TX_UNK07_UNIT(0-15) */ + /* 0x880-0x8BC - NV30_TCL_PRIMITIVE_3D_TX_DEPTH_UNIT(0-15) */ + for (i=0x00880; i<=0x008bc; i+=4) + INSTANCE_WR(ctx, i/4, 0x00100008); + /* unknown */ + for (i=0x00910; i<=0x0091c; i+=4) + INSTANCE_WR(ctx, i/4, 0x0001bc80); + for (i=0x00920; i<=0x0092c; i+=4) + INSTANCE_WR(ctx, i/4, 0x00000202); + for (i=0x00940; i<=0x0094c; i+=4) + INSTANCE_WR(ctx, i/4, 0x00000008); + for (i=0x00960; i<=0x0096c; i+=4) + INSTANCE_WR(ctx, i/4, 0x00080008); + INSTANCE_WR(ctx, 0x00980/4, 0x00000002); + INSTANCE_WR(ctx, 0x009b4/4, 0x00000001); + INSTANCE_WR(ctx, 0x009c0/4, 0x3e020200); + INSTANCE_WR(ctx, 0x009c4/4, 0x00ffffff); + INSTANCE_WR(ctx, 0x009c8/4, 0x60103f00); + INSTANCE_WR(ctx, 0x009d4/4, 0x00020000); + INSTANCE_WR(ctx, 0x00a08/4, 0x00008100); + INSTANCE_WR(ctx, 0x00aac/4, 0x00000001); + INSTANCE_WR(ctx, 0x00af0/4, 0x00000001); + INSTANCE_WR(ctx, 0x00af8/4, 0x80800001); + INSTANCE_WR(ctx, 0x00bcc/4, 0x00000005); + INSTANCE_WR(ctx, 0x00bf8/4, 0x00005555); + INSTANCE_WR(ctx, 0x00bfc/4, 0x00005555); + INSTANCE_WR(ctx, 0x00c00/4, 0x00005555); + INSTANCE_WR(ctx, 0x00c04/4, 0x00005555); + INSTANCE_WR(ctx, 0x00c08/4, 0x00005555); + INSTANCE_WR(ctx, 0x00c0c/4, 0x00005555); + INSTANCE_WR(ctx, 0x00c44/4, 0x00000001); + for (i=0x03008; i<=0x03080; i+=8) + INSTANCE_WR(ctx, i/4, 0x3f800000); + for (i=0x05288; i<=0x08570; i+=24) + INSTANCE_WR(ctx, i/4, 0x00000001); + for (i=0x08628; i<=0x08e18; i+=16) + INSTANCE_WR(ctx, i/4, 0x3f800000); + for (i=0x0bd28; i<=0x0f010; i+=24) + INSTANCE_WR(ctx, i/4, 0x00000001); + for (i=0x0f0c8; i<=0x0f8b8; i+=16) + INSTANCE_WR(ctx, i/4, 0x3f800000); + for (i=0x127c8; i<=0x15ab0; i+=24) + INSTANCE_WR(ctx, i/4, 0x00000001); + for (i=0x15b68; i<=0x16358; i+=16) + INSTANCE_WR(ctx, i/4, 0x3f800000); + for (i=0x19268; i<=0x1c550; i+=24) + INSTANCE_WR(ctx, i/4, 0x00000001); + for (i=0x1c608; i<=0x1cdf8; i+=16) + INSTANCE_WR(ctx, i/4, 0x3f800000); + for (i=0x1fd08; i<=0x22ff0; i+=24) + INSTANCE_WR(ctx, i/4, 0x00000001); + for (i=0x230a8; i<=0x23898; i+=16) + INSTANCE_WR(ctx, i/4, 0x3f800000); + for (i=0x267a8; i<=0x29a90; i+=24) + INSTANCE_WR(ctx, i/4, 0x00000001); + for (i=0x29b48; i<=0x2a338; i+=16) + INSTANCE_WR(ctx, i/4, 0x3f800000); +} + +static void nv44_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, 0x00000/4, nouveau_chip_instance_get(dev, ctx)); + INSTANCE_WR(ctx, 0x00024/4, 0x0000ffff); + INSTANCE_WR(ctx, 0x00028/4, 0x0000ffff); + INSTANCE_WR(ctx, 0x00030/4, 0x00000001); + INSTANCE_WR(ctx, 0x0011c/4, 0x20010001); + INSTANCE_WR(ctx, 0x00120/4, 0x0f73ef00); + INSTANCE_WR(ctx, 0x00128/4, 0x02008821); + INSTANCE_WR(ctx, 0x00158/4, 0x00000001); + INSTANCE_WR(ctx, 0x0015c/4, 0x00000001); + INSTANCE_WR(ctx, 0x00160/4, 0x00000001); + INSTANCE_WR(ctx, 0x00164/4, 0x00000001); + INSTANCE_WR(ctx, 0x00168/4, 0x00000001); + INSTANCE_WR(ctx, 0x0016c/4, 0x00000001); + INSTANCE_WR(ctx, 0x00170/4, 0x00000001); + INSTANCE_WR(ctx, 0x00174/4, 0x00000001); + INSTANCE_WR(ctx, 0x00178/4, 0x00000040); + INSTANCE_WR(ctx, 0x0017c/4, 0x00000040); + INSTANCE_WR(ctx, 0x00180/4, 0x00000040); + INSTANCE_WR(ctx, 0x00188/4, 0x00000040); + INSTANCE_WR(ctx, 0x001d0/4, 0x0b0b0b0c); + INSTANCE_WR(ctx, 0x00340/4, 0x00040000); + INSTANCE_WR(ctx, 0x00350/4, 0x55555555); + INSTANCE_WR(ctx, 0x00354/4, 0x55555555); + INSTANCE_WR(ctx, 0x00358/4, 0x55555555); + INSTANCE_WR(ctx, 0x0035c/4, 0x55555555); + INSTANCE_WR(ctx, 0x00388/4, 0x00000008); + INSTANCE_WR(ctx, 0x0039c/4, 0x00001010); + INSTANCE_WR(ctx, 0x003cc/4, 0x00000111); + INSTANCE_WR(ctx, 0x003d0/4, 0x00080060); + INSTANCE_WR(ctx, 0x003ec/4, 0x00000080); + INSTANCE_WR(ctx, 0x003f0/4, 0xffff0000); + INSTANCE_WR(ctx, 0x003f4/4, 0x00000001); + INSTANCE_WR(ctx, 0x00408/4, 0x46400000); + INSTANCE_WR(ctx, 0x00418/4, 0xffff0000); + INSTANCE_WR(ctx, 0x00424/4, 0x0fff0000); + INSTANCE_WR(ctx, 0x00428/4, 0x0fff0000); + INSTANCE_WR(ctx, 0x00430/4, 0x00011100); + for (i=0x0044c; i<=0x00488; i+=4) + INSTANCE_WR(ctx, i/4, 0x07ff0000); + INSTANCE_WR(ctx, 0x00494/4, 0x4b7fffff); + INSTANCE_WR(ctx, 0x004bc/4, 0x30201000); + INSTANCE_WR(ctx, 0x004c0/4, 0x70605040); + INSTANCE_WR(ctx, 0x004c4/4, 0xb8a89888); + INSTANCE_WR(ctx, 0x004c8/4, 0xf8e8d8c8); + INSTANCE_WR(ctx, 0x004dc/4, 0x40100000); + INSTANCE_WR(ctx, 0x004f8/4, 0x0000ffff); + INSTANCE_WR(ctx, 0x0052c/4, 0x435185d6); + INSTANCE_WR(ctx, 0x00530/4, 0x2155b699); + INSTANCE_WR(ctx, 0x00534/4, 0xfedcba98); + INSTANCE_WR(ctx, 0x00538/4, 0x00000098); + INSTANCE_WR(ctx, 0x00548/4, 0xffffffff); + INSTANCE_WR(ctx, 0x0054c/4, 0x00ff7000); + INSTANCE_WR(ctx, 0x00550/4, 0x0000ffff); + INSTANCE_WR(ctx, 0x0055c/4, 0x00ff0000); + INSTANCE_WR(ctx, 0x00594/4, 0x00ffff00); + for (i=0x005d8; i<=0x00614; i+=4) + INSTANCE_WR(ctx, i/4, 0x00018488); + for (i=0x00618; i<=0x00654; i+=4) + INSTANCE_WR(ctx, i/4, 0x00028202); + for (i=0x00698; i<=0x006d4; i+=4) + INSTANCE_WR(ctx, i/4, 0x0000aae4); + for (i=0x006d8; i<=0x00714; i+=4) + INSTANCE_WR(ctx, i/4, 0x01012000); + for (i=0x00718; i<=0x00754; i+=4) + INSTANCE_WR(ctx, i/4, 0x00080008); + for (i=0x00798; i<=0x007d4; i+=4) + INSTANCE_WR(ctx, i/4, 0x00100008); + for (i=0x00828; i<=0x00834; i+=4) + INSTANCE_WR(ctx, i/4, 0x0001bc80); + for (i=0x00838; i<=0x00844; i+=4) + INSTANCE_WR(ctx, i/4, 0x00000202); + for (i=0x00858; i<=0x00864; i+=4) + INSTANCE_WR(ctx, i/4, 0x00000008); + for (i=0x00878; i<=0x00884; i+=4) + INSTANCE_WR(ctx, i/4, 0x00080008); + INSTANCE_WR(ctx, 0x00898/4, 0x00000002); + INSTANCE_WR(ctx, 0x008cc/4, 0x00000020); + INSTANCE_WR(ctx, 0x008d0/4, 0x030c30c3); + INSTANCE_WR(ctx, 0x008d4/4, 0x00011001); + INSTANCE_WR(ctx, 0x008e0/4, 0x3e020200); + INSTANCE_WR(ctx, 0x008e4/4, 0x00ffffff); + INSTANCE_WR(ctx, 0x008e8/4, 0x0c103f00); + INSTANCE_WR(ctx, 0x008f4/4, 0x00040000); + INSTANCE_WR(ctx, 0x0092c/4, 0x00008100); + INSTANCE_WR(ctx, 0x009b8/4, 0x00000001); + INSTANCE_WR(ctx, 0x009fc/4, 0x00001001); + INSTANCE_WR(ctx, 0x00a04/4, 0x00000003); + INSTANCE_WR(ctx, 0x00a08/4, 0x00888001); + INSTANCE_WR(ctx, 0x00a6c/4, 0x00000005); + INSTANCE_WR(ctx, 0x00a78/4, 0x0000ffff); + INSTANCE_WR(ctx, 0x00a94/4, 0x00005555); + INSTANCE_WR(ctx, 0x00a98/4, 0x00000001); + INSTANCE_WR(ctx, 0x00aa4/4, 0x00000001); + for (i=0x01668; i<=0x016e0; i+=8) + INSTANCE_WR(ctx, i/4, 0x3f800000); + for (i=0x03428; i<=0x05618; i+=24) + INSTANCE_WR(ctx, i/4, 0x00000001); + for (i=0x05628; i<=0x05a18; i+=16) + INSTANCE_WR(ctx, i/4, 0x3f800000); +} + +int +nv40_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]; + unsigned int ctx_size; + int i; + + if (dev_priv->card_type == NV_40) + ctx_size = NV40_GRCTX_SIZE; + else + ctx_size = NV44_GRCTX_SIZE; + + /* 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 */ + if (dev_priv->card_type == NV_40) + nv40_graph_context_init(dev, chan->ramin_grctx); + else + nv44_graph_context_init(dev, chan->ramin_grctx); + + return 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); +} + +/* Some voodoo that makes context switching work without the binary driver + * initialising the card first. + * + * My best guess is that this describes to the GPU how to save/restore the + * context between RAMIN and PGRAPH. But, this is just a hunch.. no actual + * evidence as of yet.. Though, it should be easily testable. + * + * If that hunch is correct, it's likely that this differs between cards. At + * least NV44 has a different grctx layout than NV40 does. + * + * mmio-trace dumps from other nv4x cards very welcome :) + */ +static uint32_t nv40_ctx_voodoo[] = { + 0x00400889, 0x00200000, 0x0060000a, 0x00200000, 0x00300000, 0x00800001, + 0x00700009, 0x0060000e, 0x00400d64, 0x00400d05, 0x00408f65, 0x00409406, + 0x0040a268, 0x00200000, 0x0060000a, 0x00700000, 0x00106000, 0x00700080, + 0x004014e6, 0x007000a0, 0x00401a84, 0x00700082, 0x00600001, 0x00500061, + 0x00600002, 0x00401b68, 0x00500060, 0x00200001, 0x0060000a, 0x0011814d, + 0x00110158, 0x00105401, 0x0020003a, 0x00100051, 0x001040c5, 0x0010c1c4, + 0x001041c9, 0x0010c1dc, 0x00110205, 0x0011420a, 0x00114210, 0x00110216, + 0x0012421b, 0x00120270, 0x001242c0, 0x00200040, 0x00100280, 0x00128100, + 0x00128120, 0x00128143, 0x0011415f, 0x0010815c, 0x0010c140, 0x00104029, + 0x00110400, 0x00104d10, 0x00500060, 0x00403b87, 0x0060000d, 0x004076e6, + 0x002000f0, 0x0060000a, 0x00200045, 0x00100620, 0x00108668, 0x0011466b, + 0x00120682, 0x0011068b, 0x00168691, 0x0010c6ae, 0x001206b4, 0x0020002a, + 0x001006c4, 0x001246f0, 0x002000c0, 0x00100700, 0x0010c3d7, 0x001043e1, + 0x00500060, 0x00405600, 0x00405684, 0x00600003, 0x00500067, 0x00600008, + 0x00500060, 0x00700082, 0x0020026c, 0x0060000a, 0x00104800, 0x00104901, + 0x00120920, 0x00200035, 0x00100940, 0x00148a00, 0x00104a14, 0x00200038, + 0x00100b00, 0x00138d00, 0x00104e00, 0x0012d600, 0x00105c00, 0x00104f06, + 0x0020031a, 0x0060000a, 0x00300000, 0x00200680, 0x00406c00, 0x00200684, + 0x00800001, 0x00200b62, 0x0060000a, 0x0020a0b0, 0x0040728a, 0x00201b68, + 0x00800041, 0x00407684, 0x00203e60, 0x00800002, 0x00408700, 0x00600006, + 0x00700003, 0x004080e6, 0x00700080, 0x0020031a, 0x0060000a, 0x00200004, + 0x00800001, 0x00700000, 0x00200000, 0x0060000a, 0x00106002, 0x0040a284, + 0x00700002, 0x00600004, 0x0040a268, 0x00700000, 0x00200000, 0x0060000a, + 0x00106002, 0x00700080, 0x00400a84, 0x00700002, 0x00400a68, 0x00500060, + 0x00600007, 0x00409388, 0x0060000f, 0x00000000, 0x00500060, 0x00200000, + 0x0060000a, 0x00700000, 0x00106001, 0x00700083, 0x00910880, 0x00901ffe, + 0x00940400, 0x00200020, 0x0060000b, 0x00500069, 0x0060000c, 0x00401b68, + 0x0040a406, 0x0040a505, 0x00600009, 0x00700005, 0x00700006, 0x0060000e, + ~0 +}; + +int +nv40_graph_init(drm_device_t *dev) +{ + drm_nouveau_private_t *dev_priv = + (drm_nouveau_private_t *)dev->dev_private; + uint32_t *ctx_voodoo; + int i; + + switch (dev_priv->card_type) { + case NV_40: + ctx_voodoo = nv40_ctx_voodoo; + break; + default: + ctx_voodoo = NULL; + break; + } + + /* Load the context voodoo onto the card */ + if (ctx_voodoo) { + DRM_DEBUG("Loading context-switch voodoo\n"); + i = 0; + + NV_WRITE(0x400324, 0); + while (ctx_voodoo[i] != ~0) { + NV_WRITE(0x400328, ctx_voodoo[i]); + i++; + } + } + + /* No context present currently */ + NV_WRITE(0x40032C, 0x00000000); + + return 0; +} + |