nv50,nvc0: add new texture and render target formats
[mesa.git] / src / gallium / drivers / nv50 / nv50_tex.c
index 5ea0c1d726452e6ab7b20d83f50edf4dc82f9018..9192d2e25901a50fb4b9d920a5afbd97a445956b 100644 (file)
  */
 
 #include "nv50_context.h"
-#include "nv50_texture.h"
 #include "nv50_resource.h"
-
-#include "nouveau/nouveau_stateobj.h"
-#include "nouveau/nouveau_reloc.h"
+#include "nv50_texture.xml.h"
+#include "nv50_defs.xml.h"
 
 #include "util/u_format.h"
 
-#define _MIXED(pf, t0, t1, t2, t3, cr, cg, cb, ca, f)          \
-[PIPE_FORMAT_##pf] = (                                         \
-       NV50TIC_0_0_MAPR_##cr | NV50TIC_0_0_TYPER_##t0 |        \
-       NV50TIC_0_0_MAPG_##cg | NV50TIC_0_0_TYPEG_##t1 |        \
-       NV50TIC_0_0_MAPB_##cb | NV50TIC_0_0_TYPEB_##t2 |        \
-       NV50TIC_0_0_MAPA_##ca | NV50TIC_0_0_TYPEA_##t3 |        \
-       NV50TIC_0_0_FMT_##f)
-
-#define _(pf, t, cr, cg, cb, ca, f) _MIXED(pf, t, t, t, t, cr, cg, cb, ca, f)
-
-static const uint32_t nv50_texture_formats[PIPE_FORMAT_COUNT] =
-{
-       _(B8G8R8A8_UNORM, UNORM, C2, C1, C0, C3,  8_8_8_8),
-       _(B8G8R8A8_SRGB,  UNORM, C2, C1, C0, C3,  8_8_8_8),
-       _(B8G8R8X8_UNORM, UNORM, C2, C1, C0, ONE, 8_8_8_8),
-       _(B8G8R8X8_SRGB,  UNORM, C2, C1, C0, ONE, 8_8_8_8),
-       _(B5G5R5A1_UNORM, UNORM, C2, C1, C0, C3,  1_5_5_5),
-       _(B4G4R4A4_UNORM, UNORM, C2, C1, C0, C3,  4_4_4_4),
-
-       _(B5G6R5_UNORM, UNORM, C2, C1, C0, ONE, 5_6_5),
-
-       _(L8_UNORM, UNORM, C0, C0, C0, ONE, 8),
-       _(L8_SRGB,  UNORM, C0, C0, C0, ONE, 8),
-       _(A8_UNORM, UNORM, ZERO, ZERO, ZERO, C0, 8),
-       _(I8_UNORM, UNORM, C0, C0, C0, C0, 8),
-
-       _(L8A8_UNORM, UNORM, C0, C0, C0, C1, 8_8),
-       _(L8A8_SRGB,  UNORM, C0, C0, C0, C1, 8_8),
-
-       _(DXT1_RGB, UNORM, C0, C1, C2, ONE, DXT1),
-       _(DXT1_RGBA, UNORM, C0, C1, C2, C3, DXT1),
-       _(DXT3_RGBA, UNORM, C0, C1, C2, C3, DXT3),
-       _(DXT5_RGBA, UNORM, C0, C1, C2, C3, DXT5),
-
-       _MIXED(S8_USCALED_Z24_UNORM, UINT, UNORM, UINT, UINT, C1, C1, C1, ONE, 24_8),
-       _MIXED(Z24_UNORM_S8_USCALED, UNORM, UINT, UINT, UINT, C0, C0, C0, ONE, 8_24),
-
-       _(R16G16B16A16_SNORM, UNORM, C0, C1, C2, C3, 16_16_16_16),
-       _(R16G16B16A16_UNORM, SNORM, C0, C1, C2, C3, 16_16_16_16),
-       _(R32G32B32A32_FLOAT, FLOAT, C0, C1, C2, C3, 32_32_32_32),
-
-       _(R16G16_SNORM, SNORM, C0, C1, ZERO, ONE, 16_16),
-       _(R16G16_UNORM, UNORM, C0, C1, ZERO, ONE, 16_16),
-
-       _MIXED(Z32_FLOAT, FLOAT, UINT, UINT, UINT, C0, C0, C0, ONE, 32_DEPTH)
-};
-
-#undef _
-#undef _MIXED
+#define NV50_TIC_0_SWIZZLE__MASK                      \
+   (NV50_TIC_0_MAPA__MASK | NV50_TIC_0_MAPB__MASK |   \
+    NV50_TIC_0_MAPG__MASK | NV50_TIC_0_MAPR__MASK)
 
 static INLINE uint32_t
-nv50_tic_swizzle(uint32_t tc, unsigned swz)
+nv50_tic_swizzle(uint32_t tc, unsigned swz, boolean tex_int)
 {
-       switch (swz) {
-       case PIPE_SWIZZLE_RED:
-               return (tc & NV50TIC_0_0_MAPR_MASK) >> NV50TIC_0_0_MAPR_SHIFT;
-       case PIPE_SWIZZLE_GREEN:
-               return (tc & NV50TIC_0_0_MAPG_MASK) >> NV50TIC_0_0_MAPG_SHIFT;
-       case PIPE_SWIZZLE_BLUE:
-               return (tc & NV50TIC_0_0_MAPB_MASK) >> NV50TIC_0_0_MAPB_SHIFT;
-       case PIPE_SWIZZLE_ALPHA:
-               return (tc & NV50TIC_0_0_MAPA_MASK) >> NV50TIC_0_0_MAPA_SHIFT;
-       case PIPE_SWIZZLE_ONE:
-               return 7;
-       case PIPE_SWIZZLE_ZERO:
-       default:
-               return 0;
-       }
+   switch (swz) {
+   case PIPE_SWIZZLE_RED:
+      return (tc & NV50_TIC_0_MAPR__MASK) >> NV50_TIC_0_MAPR__SHIFT;
+   case PIPE_SWIZZLE_GREEN:
+      return (tc & NV50_TIC_0_MAPG__MASK) >> NV50_TIC_0_MAPG__SHIFT;
+   case PIPE_SWIZZLE_BLUE:
+      return (tc & NV50_TIC_0_MAPB__MASK) >> NV50_TIC_0_MAPB__SHIFT;
+   case PIPE_SWIZZLE_ALPHA:
+      return (tc & NV50_TIC_0_MAPA__MASK) >> NV50_TIC_0_MAPA__SHIFT;
+   case PIPE_SWIZZLE_ONE:
+      return tex_int ? NV50_TIC_MAP_ONE_INT : NV50_TIC_MAP_ONE_FLOAT;
+   case PIPE_SWIZZLE_ZERO:
+   default:
+      return NV50_TIC_MAP_ZERO;
+   }
 }
 
-boolean
-nv50_tex_construct(struct nv50_sampler_view *view)
+struct pipe_sampler_view *
+nv50_create_sampler_view(struct pipe_context *pipe,
+                         struct pipe_resource *texture,
+                         const struct pipe_sampler_view *templ)
 {
-       const struct util_format_description *desc;
-       struct nv50_miptree *mt = nv50_miptree(view->pipe.texture);
-       uint32_t swz[4], *tic = view->tic;
-
-       tic[0] = nv50_texture_formats[view->pipe.format];
-
-       swz[0] = nv50_tic_swizzle(tic[0], view->pipe.swizzle_r);
-       swz[1] = nv50_tic_swizzle(tic[0], view->pipe.swizzle_g);
-       swz[2] = nv50_tic_swizzle(tic[0], view->pipe.swizzle_b);
-       swz[3] = nv50_tic_swizzle(tic[0], view->pipe.swizzle_a);
-       view->tic[0] = (tic[0] &  ~NV50TIC_0_0_SWIZZLE_MASK) |
-               (swz[0] << NV50TIC_0_0_MAPR_SHIFT) |
-               (swz[1] << NV50TIC_0_0_MAPG_SHIFT) |
-               (swz[2] << NV50TIC_0_0_MAPB_SHIFT) |
-               (swz[3] << NV50TIC_0_0_MAPA_SHIFT);
-
-       tic[2] = 0x50001000;
-       tic[2] |= ((mt->base.bo->tile_mode & 0x0f) << 22) |
-                 ((mt->base.bo->tile_mode & 0xf0) << 21);
-
-       desc = util_format_description(mt->base.base.format);
-       if (desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB)
-               tic[2] |= NV50TIC_0_2_COLORSPACE_SRGB;
-
-       switch (mt->base.base.target) {
-       case PIPE_TEXTURE_1D:
-               tic[2] |= NV50TIC_0_2_TARGET_1D;
-               break;
-       case PIPE_TEXTURE_2D:
-               tic[2] |= NV50TIC_0_2_TARGET_2D;
-               break;
-       case PIPE_TEXTURE_3D:
-               tic[2] |= NV50TIC_0_2_TARGET_3D;
-               break;
-       case PIPE_TEXTURE_CUBE:
-               tic[2] |= NV50TIC_0_2_TARGET_CUBE;
-               break;
-       default:
-               NOUVEAU_ERR("invalid texture target: %d\n",
-                           mt->base.base.target);
-               return FALSE;
-       }
-
-       tic[3] = 0x00300000;
-
-       tic[4] = (1 << 31) | mt->base.base.width0;
-       tic[5] = (mt->base.base.last_level << 28) |
-               (mt->base.base.depth0 << 16) | mt->base.base.height0;
-
-       tic[6] = 0x03000000;
-
-       tic[7] = (view->pipe.last_level << 4) | view->pipe.first_level;
-
-       return TRUE;
+   const struct util_format_description *desc;
+   uint32_t *tic;
+   uint32_t swz[4];
+   uint32_t depth;
+   struct nv50_tic_entry *view;
+   struct nv50_miptree *mt = nv50_miptree(texture);
+   boolean tex_int;
+
+   view = MALLOC_STRUCT(nv50_tic_entry);
+   if (!view)
+      return NULL;
+
+   view->pipe = *templ;
+   view->pipe.reference.count = 1;
+   view->pipe.texture = NULL;
+   view->pipe.context = pipe;
+
+   view->id = -1;
+
+   pipe_resource_reference(&view->pipe.texture, texture);
+
+   tic = &view->tic[0];
+
+   desc = util_format_description(view->pipe.format);
+
+   /* TIC[0] */
+
+   tic[0] = nv50_format_table[view->pipe.format].tic;
+
+   tex_int = FALSE; /* XXX: integer textures */
+
+   swz[0] = nv50_tic_swizzle(tic[0], view->pipe.swizzle_r, tex_int);
+   swz[1] = nv50_tic_swizzle(tic[0], view->pipe.swizzle_g, tex_int);
+   swz[2] = nv50_tic_swizzle(tic[0], view->pipe.swizzle_b, tex_int);
+   swz[3] = nv50_tic_swizzle(tic[0], view->pipe.swizzle_a, tex_int);
+   tic[0] = (tic[0] & ~NV50_TIC_0_SWIZZLE__MASK) |
+      (swz[0] << NV50_TIC_0_MAPR__SHIFT) |
+      (swz[1] << NV50_TIC_0_MAPG__SHIFT) |
+      (swz[2] << NV50_TIC_0_MAPB__SHIFT) |
+      (swz[3] << NV50_TIC_0_MAPA__SHIFT);
+
+   tic[1] = /* mt->base.bo->offset; */ 0;
+   tic[2] = /* mt->base.bo->offset >> 32 */ 0;
+
+   tic[2] |= 0x10001000 | NV50_TIC_2_NO_BORDER;
+
+   if (desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB)
+      tic[2] |= NV50_TIC_2_COLORSPACE_SRGB;
+
+   if (mt->base.base.target != PIPE_TEXTURE_RECT)
+      tic[2] |= NV50_TIC_2_NORMALIZED_COORDS;
+
+   tic[2] |=
+      ((mt->base.bo->tile_mode & 0x0f) << (22 - 0)) |
+      ((mt->base.bo->tile_mode & 0xf0) << (25 - 4));
+
+   depth = MAX2(mt->base.base.array_size, mt->base.base.depth0);
+
+   if (mt->base.base.target == PIPE_TEXTURE_1D_ARRAY ||
+       mt->base.base.target == PIPE_TEXTURE_2D_ARRAY) {
+      tic[1] = view->pipe.u.tex.first_layer * mt->layer_stride;
+      depth = view->pipe.u.tex.last_layer - view->pipe.u.tex.first_layer + 1;
+   }
+
+   switch (mt->base.base.target) {
+   case PIPE_TEXTURE_1D:
+      tic[2] |= NV50_TIC_2_TARGET_1D;
+      break;
+   case PIPE_TEXTURE_2D:
+      tic[2] |= NV50_TIC_2_TARGET_2D;
+      break;
+   case PIPE_TEXTURE_RECT:
+      tic[2] |= NV50_TIC_2_TARGET_RECT;
+      break;
+   case PIPE_TEXTURE_3D:
+      tic[2] |= NV50_TIC_2_TARGET_3D;
+      break;
+   case PIPE_TEXTURE_CUBE:
+      depth /= 6;
+      if (depth > 1)
+         tic[2] |= NV50_TIC_2_TARGET_CUBE_ARRAY;
+      else
+         tic[2] |= NV50_TIC_2_TARGET_CUBE;
+      break;
+   case PIPE_TEXTURE_1D_ARRAY:
+      tic[2] |= NV50_TIC_2_TARGET_1D_ARRAY;
+      break;
+   case PIPE_TEXTURE_2D_ARRAY:
+      tic[2] |= NV50_TIC_2_TARGET_2D_ARRAY;
+      break;
+   case PIPE_BUFFER:
+      tic[2] |= NV50_TIC_2_TARGET_BUFFER | NV50_TIC_2_LINEAR;
+      break;
+   default:
+      NOUVEAU_ERR("invalid texture target: %d\n", mt->base.base.target);
+      return FALSE;
+   }
+
+   if (mt->base.base.target == PIPE_BUFFER)
+      tic[3] = mt->base.base.width0;
+   else
+      tic[3] = 0x00300000;
+
+   tic[4] = (1 << 31) | mt->base.base.width0;
+
+   tic[5] = mt->base.base.height0 & 0xffff;
+   tic[5] |= depth << 16;
+   tic[5] |= mt->base.base.last_level << 28;
+
+   tic[6] = 0x03000000;
+
+   tic[7] = (view->pipe.u.tex.last_level << 4) | view->pipe.u.tex.first_level;
+
+   return &view->pipe;
 }
 
-static int
-nv50_validate_textures(struct nv50_context *nv50, struct nouveau_stateobj *so,
-                      unsigned p)
+static boolean
+nv50_validate_tic(struct nv50_context *nv50, int s)
 {
-       struct nouveau_grobj *eng2d = nv50->screen->eng2d;
-       struct nouveau_grobj *tesla = nv50->screen->tesla;
-       unsigned unit, j;
-
-       const unsigned rll = NOUVEAU_BO_VRAM | NOUVEAU_BO_RD | NOUVEAU_BO_LOW;
-       const unsigned rlh = NOUVEAU_BO_VRAM | NOUVEAU_BO_RD | NOUVEAU_BO_HIGH
-               | NOUVEAU_BO_OR;
-
-       nv50_so_init_sifc(nv50, so, nv50->screen->tic, NOUVEAU_BO_VRAM,
-                         p * (32 * 8 * 4), nv50->sampler_view_nr[p] * 8 * 4);
-
-       for (unit = 0; unit < nv50->sampler_view_nr[p]; ++unit) {
-               struct nv50_sampler_view *view =
-                       nv50_sampler_view(nv50->sampler_views[p][unit]);
-
-               so_method(so, eng2d, NV50_2D_SIFC_DATA | (2 << 29), 8);
-               if (view) {
-                       uint32_t tic2 = view->tic[2];
-                       struct nv50_miptree *mt =
-                               nv50_miptree(view->pipe.texture);
-
-                       tic2 &= ~NV50TIC_0_2_NORMALIZED_COORDS;
-                       if (nv50->sampler[p][unit]->normalized)
-                               tic2 |= NV50TIC_0_2_NORMALIZED_COORDS;
-                       view->tic[2] = tic2;
-
-                       so_data  (so, view->tic[0]);
-                       so_reloc (so, mt->base.bo, 0, rll, 0, 0);
-                       so_reloc (so, mt->base.bo, 0, rlh, tic2, tic2);
-                       so_datap (so, &view->tic[3], 5);
-
-                       /* Set TEX insn $t src binding $unit in program type p
-                        * to TIC, TSC entry (32 * p + unit), mark valid (1).
-                        */
-                       so_method(so, tesla, NV50TCL_BIND_TIC(p), 1);
-                       so_data  (so, ((32 * p + unit) << 9) | (unit << 1) | 1);
-               } else {
-                       for (j = 0; j < 8; ++j)
-                               so_data(so, 0);
-                       so_method(so, tesla, NV50TCL_BIND_TIC(p), 1);
-                       so_data  (so, (unit << 1) | 0);
-               }
-       }
-
-       for (; unit < nv50->state.sampler_view_nr[p]; unit++) {
-               /* Make other bindings invalid. */
-               so_method(so, tesla, NV50TCL_BIND_TIC(p), 1);
-               so_data  (so, (unit << 1) | 0);
-       }
-
-       nv50->state.sampler_view_nr[p] = nv50->sampler_view_nr[p];
-       return TRUE;
+   struct nouveau_channel *chan = nv50->screen->base.channel;
+   struct nouveau_bo *txc = nv50->screen->txc;
+   unsigned i;
+   boolean need_flush = FALSE;
+
+   for (i = 0; i < nv50->num_textures[s]; ++i) {
+      struct nv50_tic_entry *tic = nv50_tic_entry(nv50->textures[s][i]);
+      struct nv04_resource *res;
+
+      if (!tic) {
+         BEGIN_RING(chan, RING_3D(BIND_TIC(s)), 1);
+         OUT_RING  (chan, (i << 1) | 0);
+         continue;
+      }
+      res = &nv50_miptree(tic->pipe.texture)->base;
+
+      if (tic->id < 0) {
+         uint32_t offset = tic->tic[1];
+
+         tic->id = nv50_screen_tic_alloc(nv50->screen, tic);
+
+         MARK_RING (chan, 24 + 8, 4);
+         BEGIN_RING(chan, RING_2D(DST_FORMAT), 2);
+         OUT_RING  (chan, NV50_SURFACE_FORMAT_R8_UNORM);
+         OUT_RING  (chan, 1);
+         BEGIN_RING(chan, RING_2D(DST_PITCH), 5);
+         OUT_RING  (chan, 262144);
+         OUT_RING  (chan, 65536);
+         OUT_RING  (chan, 1);
+         OUT_RELOCh(chan, txc, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_WR);
+         OUT_RELOCl(chan, txc, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_WR);
+         BEGIN_RING(chan, RING_2D(SIFC_BITMAP_ENABLE), 2);
+         OUT_RING  (chan, 0);
+         OUT_RING  (chan, NV50_SURFACE_FORMAT_R8_UNORM);
+         BEGIN_RING(chan, RING_2D(SIFC_WIDTH), 10);
+         OUT_RING  (chan, 32);
+         OUT_RING  (chan, 1);
+         OUT_RING  (chan, 0);
+         OUT_RING  (chan, 1);
+         OUT_RING  (chan, 0);
+         OUT_RING  (chan, 1);
+         OUT_RING  (chan, 0);
+         OUT_RING  (chan, tic->id * 32);
+         OUT_RING  (chan, 0);
+         OUT_RING  (chan, 0);
+         BEGIN_RING_NI(chan, RING_2D(SIFC_DATA), 8);
+         OUT_RING  (chan, tic->tic[0]);
+         OUT_RELOCl(chan, res->bo, offset, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD);
+         OUT_RELOC (chan, res->bo, offset, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD |
+                    NOUVEAU_BO_HIGH | NOUVEAU_BO_OR, tic->tic[2], tic->tic[2]);
+         OUT_RINGp (chan, &tic->tic[3], 5);
+
+         need_flush = TRUE;
+      } else
+      if (res->status & NOUVEAU_BUFFER_STATUS_GPU_WRITING) {
+         BEGIN_RING(chan, RING_3D(TEX_CACHE_CTL), 1);
+         OUT_RING  (chan, 0x20); //(tic->id << 4) | 1);
+      }
+
+      nv50->screen->tic.lock[tic->id / 32] |= 1 << (tic->id % 32);
+
+      res->status &= NOUVEAU_BUFFER_STATUS_GPU_WRITING;
+      res->status |= NOUVEAU_BUFFER_STATUS_GPU_READING;
+
+      nv50_bufctx_add_resident(nv50, NV50_BUFCTX_TEXTURES, res,
+                               NOUVEAU_BO_VRAM | NOUVEAU_BO_RD);
+
+      BEGIN_RING(chan, RING_3D(BIND_TIC(s)), 1);
+      OUT_RING  (chan, (tic->id << 9) | (i << 1) | 1);
+   }
+   for (; i < nv50->state.num_textures[s]; ++i) {
+      BEGIN_RING(chan, RING_3D(BIND_TIC(s)), 1);
+      OUT_RING  (chan, (i << 1) | 0);
+   }
+   nv50->state.num_textures[s] = nv50->num_textures[s];
+
+   return need_flush;
 }
 
-static void
-nv50_emit_texture_relocs(struct nv50_context *nv50, int prog)
+void nv50_validate_textures(struct nv50_context *nv50)
 {
-       struct nouveau_channel *chan = nv50->screen->base.channel;
-       struct nouveau_bo *tic = nv50->screen->tic;
-       int unit;
-
-       for (unit = 0; unit < nv50->sampler_view_nr[prog]; unit++) {
-               struct nv50_sampler_view *view;
-               struct nv50_miptree *mt;
-               const unsigned base = ((prog * 32) + unit) * 32;
-
-               view = nv50_sampler_view(nv50->sampler_views[prog][unit]);
-               if (!view)
-                       continue;
-               mt = nv50_miptree(view->pipe.texture);
-
-               nouveau_reloc_emit(chan, tic, base + 4, NULL, mt->base.bo, 0, 0,
-                                  NOUVEAU_BO_VRAM | NOUVEAU_BO_RD |
-                                  NOUVEAU_BO_LOW, 0, 0);
-               nouveau_reloc_emit(chan, tic, base + 8, NULL, mt->base.bo, 0, 0,
-                                  NOUVEAU_BO_VRAM | NOUVEAU_BO_RD |
-                                  NOUVEAU_BO_HIGH, view->tic[2], view->tic[2]);
-       }
+   boolean need_flush;
+
+   need_flush  = nv50_validate_tic(nv50, 0);
+   need_flush |= nv50_validate_tic(nv50, 2);
+
+   if (need_flush) {
+      BEGIN_RING(nv50->screen->base.channel, RING_3D(TIC_FLUSH), 1);
+      OUT_RING  (nv50->screen->base.channel, 0);
+   }
 }
 
-void
-nv50_tex_relocs(struct nv50_context *nv50)
+static boolean
+nv50_validate_tsc(struct nv50_context *nv50, int s)
 {
-       nv50_emit_texture_relocs(nv50, 2); /* FP */
-       nv50_emit_texture_relocs(nv50, 0); /* VP */
+   struct nouveau_channel *chan = nv50->screen->base.channel;
+   unsigned i;
+   boolean need_flush = FALSE;
+
+   for (i = 0; i < nv50->num_samplers[s]; ++i) {
+      struct nv50_tsc_entry *tsc = nv50_tsc_entry(nv50->samplers[s][i]);
+
+      if (!tsc) {
+         BEGIN_RING(chan, RING_3D(BIND_TSC(s)), 1);
+         OUT_RING  (chan, (i << 4) | 0);
+         continue;
+      }
+      if (tsc->id < 0) {
+         tsc->id = nv50_screen_tsc_alloc(nv50->screen, tsc);
+
+         nv50_sifc_linear_u8(&nv50->base, nv50->screen->txc,
+                             65536 + tsc->id * 32,
+                             NOUVEAU_BO_VRAM, 32, tsc->tsc);
+         need_flush = TRUE;
+      }
+      nv50->screen->tsc.lock[tsc->id / 32] |= 1 << (tsc->id % 32);
+
+      BEGIN_RING(chan, RING_3D(BIND_TSC(s)), 1);
+      OUT_RING  (chan, (tsc->id << 12) | (i << 4) | 1);
+   }
+   for (; i < nv50->state.num_samplers[s]; ++i) {
+      BEGIN_RING(chan, RING_3D(BIND_TSC(s)), 1);
+      OUT_RING  (chan, (i << 4) | 0);
+   }
+   nv50->state.num_samplers[s] = nv50->num_samplers[s];
+
+   return need_flush;
 }
 
-struct nouveau_stateobj *
-nv50_tex_validate(struct nv50_context *nv50)
+void nv50_validate_samplers(struct nv50_context *nv50)
 {
-       struct nouveau_stateobj *so;
-       struct nouveau_grobj *tesla = nv50->screen->tesla;
-       unsigned p, m = 0, d = 0, r = 0;
-
-       for (p = 0; p < 3; ++p) {
-               unsigned nr = MAX2(nv50->sampler_view_nr[p],
-                                  nv50->state.sampler_view_nr[p]);
-               m += nr;
-               d += nr;
-               r += nv50->sampler_view_nr[p];
-       }
-       m = m * 2 + 3 * 4 + 1;
-       d = d * 9 + 3 * 19 + 1;
-       r = r * 2 + 3 * 2;
-
-       so = so_new(m, d, r);
-
-       if (nv50_validate_textures(nv50, so, 0) == FALSE ||
-           nv50_validate_textures(nv50, so, 2) == FALSE) {
-               so_ref(NULL, &so);
-
-               NOUVEAU_ERR("failed tex validate\n");
-               return NULL;
-       }
-
-       so_method(so, tesla, 0x1330, 1); /* flush TIC */
-       so_data  (so, 0);
-
-       return so;
+   boolean need_flush;
+
+   need_flush  = nv50_validate_tsc(nv50, 0);
+   need_flush |= nv50_validate_tsc(nv50, 2);
+
+   if (need_flush) {
+      BEGIN_RING(nv50->screen->base.channel, RING_3D(TSC_FLUSH), 1);
+      OUT_RING  (nv50->screen->base.channel, 0);
+   }
 }