nvfx: support all possible vs consts

We were incorrectly setting a register that limited the range of
constants accessible via indirect addressing.

Setting it correctly, we can address all the constants the GPU
supports.

diff --git a/src/gallium/drivers/nvfx/nvfx_screen.c b/src/gallium/drivers/nvfx/nvfx_screen.c
index b5b7a34..335c500 100644 (file)
--- a/src/gallium/drivers/nvfx/nvfx_screen.c
+++ b/src/gallium/drivers/nvfx/nvfx_screen.c
@@ -110,8 +110,9 @@ nvfx_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
        case PIPE_CAP_MAX_VS_INPUTS:
                return 16;
        case PIPE_CAP_MAX_VS_CONSTS:
-               /* XXX: currently more don't work, but it should be possible to make it work */
-               return 212 - 6;
+               /* - 6 is for clip planes; Gallium should be fixed to put
+                * them in the vertex shader itself, so we don't need to reserve these */
+               return (screen->is_nv4x ? 468 : 256) - 6;
        case PIPE_CAP_MAX_VS_TEMPS:
                return screen->is_nv4x ? 32 : 13;
        case PIPE_CAP_MAX_VS_ADDRS:
@@ -325,7 +326,7 @@ static void nv40_screen_init(struct nvfx_screen *screen)
        OUT_RING(chan, RING_3D(0x1ef8, 1));
        OUT_RING(chan, 0x0020ffff);
        OUT_RING(chan, RING_3D(0x1d64, 1));
-       OUT_RING(chan, 0x00d30000);
+       OUT_RING(chan, 0x01d300d4);
        OUT_RING(chan, RING_3D(0x1e94, 1));
        OUT_RING(chan, 0x00000001);
 
@@ -478,13 +479,7 @@ nvfx_screen_create(struct pipe_winsys *ws, struct nouveau_device *dev)
 
        /* Vtxprog resources */
        if (nouveau_resource_init(&screen->vp_exec_heap, 0, screen->is_nv4x ? 512 : 256) ||
-           /* XXX: this should actually be 468 or 256, but apparently indirect addressing
-            * cannot read consts starting from 212 on nv40.
-            * It looks like 44 slots are reserved for something, and there is a "mode switch"
-            * from 256 slots to 512 slots that we are setting to "256 mode" on nv40, leading
-            * to 212 = 256 - 44 instead of 468 = 512 - 44 usable slots.
-            */
-           nouveau_resource_init(&screen->vp_data_heap, 0, 212)) {
+           nouveau_resource_init(&screen->vp_data_heap, 0, screen->is_nv4x ? 468 : 256)) {
                nvfx_screen_destroy(pscreen);
                return NULL;
        }