diff options
| author | Christoph Bumiller <[email protected]> | 2009-05-23 16:13:24 +0200 |
|---|---|---|
| committer | Ben Skeggs <[email protected]> | 2009-05-28 16:06:24 +1000 |
| commit | 94ba165dffa4d364a1335d3cd7c15558bf35fe3e (patch) | |
| tree | 0dd87a7d5ad5f291d53203ac723c9b56586dc228 /src/gallium/drivers/nv50/nv50_screen.c | |
| parent | f9268ccd7f2ef2476db48f0aaca739bfb4ee9eab (diff) | |
nv50: use multiple constant buffers
Use different buffers for immds, FP params, and VP params.
One has to map constant buffer indices in shader code to buffers
defined via CB_DEF. In principle, we could use more buffers so
we'd have to change the shader code less frequently.
Diffstat (limited to 'src/gallium/drivers/nv50/nv50_screen.c')
| -rw-r--r-- | src/gallium/drivers/nv50/nv50_screen.c | 56 |
1 files changed, 49 insertions, 7 deletions
diff --git a/src/gallium/drivers/nv50/nv50_screen.c b/src/gallium/drivers/nv50/nv50_screen.c index 29805645948..a7981a36157 100644 --- a/src/gallium/drivers/nv50/nv50_screen.c +++ b/src/gallium/drivers/nv50/nv50_screen.c @@ -290,20 +290,62 @@ nv50_screen_create(struct pipe_winsys *ws, struct nouveau_winsys *nvws) so_method(so, screen->tesla, 0x16b8, 1); so_data (so, 8); - /* Shared constant buffer */ - screen->constbuf = screen->pipe.buffer_create(&screen->pipe, 0, 0, 128 * 4 * 4); - if (nvws->res_init(&screen->vp_data_heap, 0, 128)) { - NOUVEAU_ERR("Error initialising constant buffer\n"); + /* constant buffers for immediates and VP/FP parameters */ + screen->constbuf_misc[0] = + screen->pipe.buffer_create(&screen->pipe, 0, 0, 128 * 4 * 4); + + screen->constbuf_parm[0] = + screen->pipe.buffer_create(&screen->pipe, 0, 0, 128 * 4 * 4); + + screen->constbuf_parm[1] = + screen->pipe.buffer_create(&screen->pipe, 0, 0, 128 * 4 * 4); + + if (nvws->res_init(&screen->immd_heap[0], 0, 128) || + nvws->res_init(&screen->parm_heap[0], 0, 128) || + nvws->res_init(&screen->parm_heap[1], 0, 128)) + { + NOUVEAU_ERR("Error initialising constant buffers.\n"); nv50_screen_destroy(&screen->pipe); return NULL; } + /* + // map constant buffers: + // B = buffer ID (maybe more than 1 byte) + // N = CB index used in shader instruction + // P = program type (0 = VP, 2 = GP, 3 = FP) + so_method(so, screen->tesla, 0x1694, 1); + so_data (so, 0x000BBNP1); + */ + + so_method(so, screen->tesla, 0x1280, 3); + so_reloc (so, screen->constbuf_misc[0], 0, NOUVEAU_BO_VRAM | + NOUVEAU_BO_RD | NOUVEAU_BO_HIGH, 0, 0); + so_reloc (so, screen->constbuf_misc[0], 0, NOUVEAU_BO_VRAM | + NOUVEAU_BO_RD | NOUVEAU_BO_LOW, 0, 0); + so_data (so, (NV50_CB_PMISC << 16) | 0x00000800); + so_method(so, screen->tesla, 0x1694, 1); + so_data (so, 0x00000001 | (NV50_CB_PMISC << 12)); + so_method(so, screen->tesla, 0x1694, 1); + so_data (so, 0x00000031 | (NV50_CB_PMISC << 12)); + + so_method(so, screen->tesla, 0x1280, 3); + so_reloc (so, screen->constbuf_parm[0], 0, NOUVEAU_BO_VRAM | + NOUVEAU_BO_RD | NOUVEAU_BO_HIGH, 0, 0); + so_reloc (so, screen->constbuf_parm[0], 0, NOUVEAU_BO_VRAM | + NOUVEAU_BO_RD | NOUVEAU_BO_LOW, 0, 0); + so_data (so, (NV50_CB_PVP << 16) | 0x00000800); + so_method(so, screen->tesla, 0x1694, 1); + so_data (so, 0x00000101 | (NV50_CB_PVP << 12)); + so_method(so, screen->tesla, 0x1280, 3); - so_reloc (so, screen->constbuf, 0, NOUVEAU_BO_VRAM | + so_reloc (so, screen->constbuf_parm[1], 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD | NOUVEAU_BO_HIGH, 0, 0); - so_reloc (so, screen->constbuf, 0, NOUVEAU_BO_VRAM | + so_reloc (so, screen->constbuf_parm[1], 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD | NOUVEAU_BO_LOW, 0, 0); - so_data (so, (NV50_CB_PMISC << 16) | 0x00001000); + so_data (so, (NV50_CB_PFP << 16) | 0x00000800); + so_method(so, screen->tesla, 0x1694, 1); + so_data (so, 0x00000131 | (NV50_CB_PFP << 12)); /* Texture sampler/image unit setup - we abuse the constant buffer * upload mechanism for the moment to upload data to the tex config |