i965: Move data from brw->vs into a base class if gs will also need it.

This paves the way for sharing the code that will set up the vertex
and geometry shader pipeline state.

v2: Rename the base class to brw_stage_state.

Reviewed-by: Chad Versace <chad.versace@linux.intel.com>

12 files changed, 108 insertions, 85 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h
index dcd4c9a..bd33fd2 100644
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -818,6 +818,32 @@ struct brw_query_object {
 
 
 /**
+ * Data shared between brw_context::vs and brw_context::gs
+ */
+struct brw_stage_state
+{
+   drm_intel_bo *scratch_bo;
+   drm_intel_bo *const_bo;
+   /** Offset in the program cache to the program */
+   uint32_t prog_offset;
+   uint32_t state_offset;
+
+   uint32_t push_const_offset; /* Offset in the batchbuffer */
+   int push_const_size; /* in 256-bit register increments */
+
+   uint32_t bind_bo_offset;
+   uint32_t surf_offset[BRW_MAX_VEC4_SURFACES];
+
+   /** SAMPLER_STATE count and table offset */
+   uint32_t sampler_count;
+   uint32_t sampler_offset;
+
+   /** Offsets in the batch to sampler default colors (texture border color) */
+   uint32_t sdc_offset[BRW_MAX_TEX_UNIT];
+};
+
+
+/**
  * brw_context is derived from gl_context.
  */
 struct brw_context 
@@ -1141,27 +1167,8 @@ struct brw_context
    } vec4;
 
    struct {
+      struct brw_stage_state base;
       struct brw_vs_prog_data *prog_data;
-
-      drm_intel_bo *scratch_bo;
-      drm_intel_bo *const_bo;
-      /** Offset in the program cache to the VS program */
-      uint32_t prog_offset;
-      uint32_t state_offset;
-
-      uint32_t push_const_offset; /* Offset in the batchbuffer */
-      int push_const_size; /* in 256-bit register increments */
-
-      uint32_t bind_bo_offset;
-      uint32_t surf_offset[BRW_MAX_VEC4_SURFACES];
-
-      /** SAMPLER_STATE count and table offset */
-      uint32_t sampler_count;
-      uint32_t sampler_offset;
-
-      /** Offsets in the batch to sampler default colors (texture border color)
-       */
-      uint32_t sdc_offset[BRW_MAX_TEX_UNIT];
    } vs;
 
    struct {
diff --git a/src/mesa/drivers/dri/i965/brw_draw.c b/src/mesa/drivers/dri/i965/brw_draw.c
index c7164ac..96ba817 100644
--- a/src/mesa/drivers/dri/i965/brw_draw.c
+++ b/src/mesa/drivers/dri/i965/brw_draw.c
@@ -376,7 +376,8 @@ static bool brw_try_draw_prims( struct gl_context *ctx,
     * index.
     */
    brw->wm.sampler_count = _mesa_fls(ctx->FragmentProgram._Current->Base.SamplersUsed);
-   brw->vs.sampler_count = _mesa_fls(ctx->VertexProgram._Current->Base.SamplersUsed);
+   brw->vs.base.sampler_count =
+      _mesa_fls(ctx->VertexProgram._Current->Base.SamplersUsed);
 
    /* We have to validate the textures *before* checking for fallbacks;
     * otherwise, the software fallback won't be able to rely on the
diff --git a/src/mesa/drivers/dri/i965/brw_misc_state.c b/src/mesa/drivers/dri/i965/brw_misc_state.c
index 3492ea9..16a41cc 100644
--- a/src/mesa/drivers/dri/i965/brw_misc_state.c
+++ b/src/mesa/drivers/dri/i965/brw_misc_state.c
@@ -77,7 +77,7 @@ static void upload_binding_table_pointers(struct brw_context *brw)
 {
    BEGIN_BATCH(6);
    OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS << 16 | (6 - 2));
-   OUT_BATCH(brw->vs.bind_bo_offset);
+   OUT_BATCH(brw->vs.base.bind_bo_offset);
    OUT_BATCH(0); /* gs */
    OUT_BATCH(0); /* clip */
    OUT_BATCH(0); /* sf */
@@ -113,7 +113,7 @@ static void upload_gen6_binding_table_pointers(struct brw_context *brw)
 	     GEN6_BINDING_TABLE_MODIFY_GS |
 	     GEN6_BINDING_TABLE_MODIFY_PS |
 	     (4 - 2));
-   OUT_BATCH(brw->vs.bind_bo_offset); /* vs */
+   OUT_BATCH(brw->vs.base.bind_bo_offset); /* vs */
    OUT_BATCH(brw->ff_gs.bind_bo_offset); /* gs */
    OUT_BATCH(brw->wm.bind_bo_offset); /* wm/ps */
    ADVANCE_BATCH();
@@ -150,7 +150,7 @@ static void upload_pipelined_state_pointers(struct brw_context *brw )
    BEGIN_BATCH(7);
    OUT_BATCH(_3DSTATE_PIPELINED_POINTERS << 16 | (7 - 2));
    OUT_RELOC(brw->batch.bo, I915_GEM_DOMAIN_INSTRUCTION, 0,
-	     brw->vs.state_offset);
+	     brw->vs.base.state_offset);
    if (brw->ff_gs.prog_active)
       OUT_RELOC(brw->batch.bo, I915_GEM_DOMAIN_INSTRUCTION, 0,
 		brw->ff_gs.state_offset | 1);
diff --git a/src/mesa/drivers/dri/i965/brw_vs.c b/src/mesa/drivers/dri/i965/brw_vs.c
index 43abd89..364a77a 100644
--- a/src/mesa/drivers/dri/i965/brw_vs.c
+++ b/src/mesa/drivers/dri/i965/brw_vs.c
@@ -299,7 +299,7 @@ do_vs_prog(struct brw_context *brw,
       prog_data.base.total_scratch
          = brw_get_scratch_size(c.base.last_scratch*REG_SIZE);
 
-      brw_get_scratch_bo(brw, &brw->vs.scratch_bo,
+      brw_get_scratch_bo(brw, &brw->vs.base.scratch_bo,
 			 prog_data.base.total_scratch * brw->max_vs_threads);
    }
 
@@ -307,7 +307,7 @@ do_vs_prog(struct brw_context *brw,
 		    &c.key, sizeof(c.key),
 		    program, program_size,
 		    &prog_data, sizeof(prog_data),
-		    &brw->vs.prog_offset, &brw->vs.prog_data);
+		    &brw->vs.base.prog_offset, &brw->vs.prog_data);
    ralloc_free(mem_ctx);
 
    return true;
@@ -436,7 +436,7 @@ static void brw_upload_vs_prog(struct brw_context *brw)
    }
 
    /* _NEW_TEXTURE */
-   brw_populate_sampler_prog_key_data(ctx, prog, brw->vs.sampler_count,
+   brw_populate_sampler_prog_key_data(ctx, prog, brw->vs.base.sampler_count,
                                       &key.base.tex);
 
    /* BRW_NEW_VERTICES */
@@ -478,7 +478,7 @@ static void brw_upload_vs_prog(struct brw_context *brw)
 
    if (!brw_search_cache(&brw->cache, BRW_VS_PROG,
 			 &key, sizeof(key),
-			 &brw->vs.prog_offset, &brw->vs.prog_data)) {
+			 &brw->vs.base.prog_offset, &brw->vs.prog_data)) {
       bool success = do_vs_prog(brw, ctx->Shader.CurrentVertexProgram,
 				vp, &key);
       (void) success;
@@ -516,7 +516,7 @@ brw_vs_precompile(struct gl_context *ctx, struct gl_shader_program *prog)
 {
    struct brw_context *brw = brw_context(ctx);
    struct brw_vs_prog_key key;
-   uint32_t old_prog_offset = brw->vs.prog_offset;
+   uint32_t old_prog_offset = brw->vs.base.prog_offset;
    struct brw_vs_prog_data *old_prog_data = brw->vs.prog_data;
    bool success;
 
@@ -546,7 +546,7 @@ brw_vs_precompile(struct gl_context *ctx, struct gl_shader_program *prog)
 
    success = do_vs_prog(brw, prog, bvp, &key);
 
-   brw->vs.prog_offset = old_prog_offset;
+   brw->vs.base.prog_offset = old_prog_offset;
    brw->vs.prog_data = old_prog_data;
 
    return success;
diff --git a/src/mesa/drivers/dri/i965/brw_vs_state.c b/src/mesa/drivers/dri/i965/brw_vs_state.c
index e5421f1..cdffac3 100644
--- a/src/mesa/drivers/dri/i965/brw_vs_state.c
+++ b/src/mesa/drivers/dri/i965/brw_vs_state.c
@@ -39,10 +39,12 @@
 static void
 brw_upload_vs_unit(struct brw_context *brw)
 {
+   struct brw_stage_state *stage_state = &brw->vs.base;
+
    struct brw_vs_unit_state *vs;
 
    vs = brw_state_batch(brw, AUB_TRACE_VS_STATE,
-			sizeof(*vs), 32, &brw->vs.state_offset);
+			sizeof(*vs), 32, &stage_state->state_offset);
    memset(vs, 0, sizeof(*vs));
 
    /* BRW_NEW_PROGRAM_CACHE | CACHE_NEW_VS_PROG */
@@ -50,9 +52,9 @@ brw_upload_vs_unit(struct brw_context *brw)
       ALIGN(brw->vs.prog_data->base.total_grf, 16) / 16 - 1;
    vs->thread0.kernel_start_pointer =
       brw_program_reloc(brw,
-			brw->vs.state_offset +
+			stage_state->state_offset +
 			offsetof(struct brw_vs_unit_state, thread0),
-			brw->vs.prog_offset +
+			stage_state->prog_offset +
 			(vs->thread0.grf_reg_count << 1)) >> 6;
 
    /* Use ALT floating point mode for ARB vertex programs, because they
@@ -81,7 +83,7 @@ brw_upload_vs_unit(struct brw_context *brw)
 
    if (brw->vs.prog_data->base.total_scratch != 0) {
       vs->thread2.scratch_space_base_pointer =
-	 brw->vs.scratch_bo->offset >> 10; /* reloc */
+	 stage_state->scratch_bo->offset >> 10; /* reloc */
       vs->thread2.per_thread_scratch_space =
 	 ffs(brw->vs.prog_data->base.total_scratch) - 11;
    } else {
@@ -143,7 +145,7 @@ brw_upload_vs_unit(struct brw_context *brw)
       vs->vs5.sampler_count = 0; /* hardware requirement */
    else {
       /* CACHE_NEW_SAMPLER */
-      vs->vs5.sampler_count = (brw->vs.sampler_count + 3) / 4;
+      vs->vs5.sampler_count = (stage_state->sampler_count + 3) / 4;
    }
 
 
@@ -156,23 +158,24 @@ brw_upload_vs_unit(struct brw_context *brw)
 
    /* Set the sampler state pointer, and its reloc
     */
-   if (brw->vs.sampler_count) {
+   if (stage_state->sampler_count) {
       vs->vs5.sampler_state_pointer =
-         (brw->batch.bo->offset + brw->vs.sampler_offset) >> 5;
+         (brw->batch.bo->offset + stage_state->sampler_offset) >> 5;
       drm_intel_bo_emit_reloc(brw->batch.bo,
-                              brw->vs.state_offset +
+                              stage_state->state_offset +
                               offsetof(struct brw_vs_unit_state, vs5),
                               brw->batch.bo,
-                              brw->vs.sampler_offset | vs->vs5.sampler_count,
+                              (stage_state->sampler_offset |
+                               vs->vs5.sampler_count),
                               I915_GEM_DOMAIN_INSTRUCTION, 0);
    }
 
    /* Emit scratch space relocation */
    if (brw->vs.prog_data->base.total_scratch != 0) {
       drm_intel_bo_emit_reloc(brw->batch.bo,
-			      brw->vs.state_offset +
+			      stage_state->state_offset +
 			      offsetof(struct brw_vs_unit_state, thread2),
-			      brw->vs.scratch_bo,
+			      stage_state->scratch_bo,
 			      vs->thread2.per_thread_scratch_space,
 			      I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER);
    }
diff --git a/src/mesa/drivers/dri/i965/brw_vs_surface_state.c b/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
index fe2459f..f1e1a4e 100644
--- a/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
@@ -44,6 +44,8 @@
 static void
 brw_upload_vs_pull_constants(struct brw_context *brw)
 {
+   struct brw_stage_state *stage_state = &brw->vs.base;
+
    /* BRW_NEW_VERTEX_PROGRAM */
    struct brw_vertex_program *vp =
       (struct brw_vertex_program *) brw->vertex_program;
@@ -56,24 +58,24 @@ brw_upload_vs_pull_constants(struct brw_context *brw)
 
    /* CACHE_NEW_VS_PROG */
    if (!brw->vs.prog_data->base.nr_pull_params) {
-      if (brw->vs.const_bo) {
-	 drm_intel_bo_unreference(brw->vs.const_bo);
-	 brw->vs.const_bo = NULL;
-	 brw->vs.surf_offset[SURF_INDEX_VEC4_CONST_BUFFER] = 0;
+      if (stage_state->const_bo) {
+	 drm_intel_bo_unreference(stage_state->const_bo);
+	 stage_state->const_bo = NULL;
+	 stage_state->surf_offset[SURF_INDEX_VEC4_CONST_BUFFER] = 0;
 	 brw->state.dirty.brw |= BRW_NEW_VS_CONSTBUF;
       }
       return;
    }
 
    /* _NEW_PROGRAM_CONSTANTS */
-   drm_intel_bo_unreference(brw->vs.const_bo);
+   drm_intel_bo_unreference(stage_state->const_bo);
    uint32_t size = brw->vs.prog_data->base.nr_pull_params * 4;
-   brw->vs.const_bo = drm_intel_bo_alloc(brw->bufmgr, "vp_const_buffer",
-					 size, 64);
+   stage_state->const_bo = drm_intel_bo_alloc(brw->bufmgr, "vp_const_buffer",
+                                              size, 64);
 
-   drm_intel_gem_bo_map_gtt(brw->vs.const_bo);
+   drm_intel_gem_bo_map_gtt(stage_state->const_bo);
    for (i = 0; i < brw->vs.prog_data->base.nr_pull_params; i++) {
-      memcpy(brw->vs.const_bo->virtual + i * 4,
+      memcpy(stage_state->const_bo->virtual + i * 4,
 	     brw->vs.prog_data->base.pull_param[i],
 	     4);
    }
@@ -81,17 +83,17 @@ brw_upload_vs_pull_constants(struct brw_context *brw)
    if (0) {
       for (i = 0; i < ALIGN(brw->vs.prog_data->base.nr_pull_params, 4) / 4;
            i++) {
-	 float *row = (float *)brw->vs.const_bo->virtual + i * 4;
+	 float *row = (float *)stage_state->const_bo->virtual + i * 4;
 	 printf("vs const surface %3d: %4.3f %4.3f %4.3f %4.3f\n",
 		i, row[0], row[1], row[2], row[3]);
       }
    }
 
-   drm_intel_gem_bo_unmap_gtt(brw->vs.const_bo);
+   drm_intel_gem_bo_unmap_gtt(stage_state->const_bo);
 
    const int surf = SURF_INDEX_VEC4_CONST_BUFFER;
-   brw->vtbl.create_constant_surface(brw, brw->vs.const_bo, 0, size,
-                                     &brw->vs.surf_offset[surf], false);
+   brw->vtbl.create_constant_surface(brw, stage_state->const_bo, 0, size,
+                                     &stage_state->surf_offset[surf], false);
 
    brw->state.dirty.brw |= BRW_NEW_VS_CONSTBUF;
 }
@@ -108,6 +110,8 @@ const struct brw_tracked_state brw_vs_pull_constants = {
 static void
 brw_upload_vs_ubo_surfaces(struct brw_context *brw)
 {
+   struct brw_stage_state *stage_state = &brw->vs.base;
+
    struct gl_context *ctx = &brw->ctx;
    /* _NEW_PROGRAM */
    struct gl_shader_program *prog = ctx->Shader.CurrentVertexProgram;
@@ -116,7 +120,7 @@ brw_upload_vs_ubo_surfaces(struct brw_context *brw)
       return;
 
    brw_upload_ubo_surfaces(brw, prog->_LinkedShaders[MESA_SHADER_VERTEX],
-			   &brw->vs.surf_offset[SURF_INDEX_VEC4_UBO(0)]);
+			   &stage_state->surf_offset[SURF_INDEX_VEC4_UBO(0)]);
 }
 
 const struct brw_tracked_state brw_vs_ubo_surfaces = {
@@ -135,11 +139,12 @@ const struct brw_tracked_state brw_vs_ubo_surfaces = {
 static void
 brw_vs_upload_binding_table(struct brw_context *brw)
 {
+   struct brw_stage_state *stage_state = &brw->vs.base;
    uint32_t *bind;
    int i;
 
    if (INTEL_DEBUG & DEBUG_SHADER_TIME) {
-      gen7_create_shader_time_surface(brw, &brw->vs.surf_offset[SURF_INDEX_VEC4_SHADER_TIME]);
+      gen7_create_shader_time_surface(brw, &stage_state->surf_offset[SURF_INDEX_VEC4_SHADER_TIME]);
    }
 
    /* CACHE_NEW_VS_PROG: Skip making a binding table if we don't use textures or
@@ -147,9 +152,9 @@ brw_vs_upload_binding_table(struct brw_context *brw)
     */
    const unsigned entries = brw->vs.prog_data->base.binding_table_size;
    if (entries == 0) {
-      if (brw->vs.bind_bo_offset != 0) {
+      if (stage_state->bind_bo_offset != 0) {
 	 brw->state.dirty.brw |= BRW_NEW_VS_BINDING_TABLE;
-	 brw->vs.bind_bo_offset = 0;
+	 stage_state->bind_bo_offset = 0;
       }
       return;
    }
@@ -159,11 +164,11 @@ brw_vs_upload_binding_table(struct brw_context *brw)
     */
    bind = brw_state_batch(brw, AUB_TRACE_BINDING_TABLE,
 			  sizeof(uint32_t) * entries,
-			  32, &brw->vs.bind_bo_offset);
+			  32, &stage_state->bind_bo_offset);
 
    /* BRW_NEW_SURFACES and BRW_NEW_VS_CONSTBUF */
    for (i = 0; i < entries; i++) {
-      bind[i] = brw->vs.surf_offset[i];
+      bind[i] = stage_state->surf_offset[i];
    }
 
    brw->state.dirty.brw |= BRW_NEW_VS_BINDING_TABLE;
diff --git a/src/mesa/drivers/dri/i965/brw_vtbl.c b/src/mesa/drivers/dri/i965/brw_vtbl.c
index aee88e0..43e8167 100644
--- a/src/mesa/drivers/dri/i965/brw_vtbl.c
+++ b/src/mesa/drivers/dri/i965/brw_vtbl.c
@@ -81,7 +81,7 @@ brw_destroy_context(struct brw_context *brw)
    brw_draw_destroy( brw );
 
    dri_bo_release(&brw->curbe.curbe_bo);
-   dri_bo_release(&brw->vs.const_bo);
+   dri_bo_release(&brw->vs.base.const_bo);
    dri_bo_release(&brw->wm.const_bo);
 
    free(brw->curbe.last_buf);
diff --git a/src/mesa/drivers/dri/i965/brw_wm_sampler_state.c b/src/mesa/drivers/dri/i965/brw_wm_sampler_state.c
index 1f46f91..dd5896e 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_sampler_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_sampler_state.c
@@ -421,12 +421,14 @@ const struct brw_tracked_state brw_fs_samplers = {
 static void
 brw_upload_vs_samplers(struct brw_context *brw)
 {
+   struct brw_stage_state *stage_state = &brw->vs.base;
+
    /* BRW_NEW_VERTEX_PROGRAM */
    struct gl_program *vs = (struct gl_program *) brw->vertex_program;
    brw->vtbl.upload_sampler_state_table(brw, vs,
-                                        brw->vs.sampler_count,
-                                        &brw->vs.sampler_offset,
-                                        brw->vs.sdc_offset);
+                                        stage_state->sampler_count,
+                                        &stage_state->sampler_offset,
+                                        stage_state->sdc_offset);
 }
 
 
diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index ea433ca..9f84c93 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -754,7 +754,7 @@ brw_update_texture_surfaces(struct brw_context *brw)
    unsigned num_samplers = _mesa_fls(vs->SamplersUsed | fs->SamplersUsed);
 
    for (unsigned s = 0; s < num_samplers; s++) {
-      brw->vs.surf_offset[SURF_INDEX_VEC4_TEXTURE(s)] = 0;
+      brw->vs.base.surf_offset[SURF_INDEX_VEC4_TEXTURE(s)] = 0;
       brw->wm.surf_offset[SURF_INDEX_TEXTURE(s)] = 0;
 
       if (vs->SamplersUsed & (1 << s)) {
@@ -763,7 +763,7 @@ brw_update_texture_surfaces(struct brw_context *brw)
          /* _NEW_TEXTURE */
          if (ctx->Texture.Unit[unit]._ReallyEnabled) {
             brw->vtbl.update_texture_surface(ctx, unit,
-                                             brw->vs.surf_offset,
+                                             brw->vs.base.surf_offset,
                                              SURF_INDEX_VEC4_TEXTURE(s));
          }
       }
diff --git a/src/mesa/drivers/dri/i965/gen6_sampler_state.c b/src/mesa/drivers/dri/i965/gen6_sampler_state.c
index 16be8a7..5416a17 100644
--- a/src/mesa/drivers/dri/i965/gen6_sampler_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_sampler_state.c
@@ -39,7 +39,7 @@ upload_sampler_state_pointers(struct brw_context *brw)
 	     GS_SAMPLER_STATE_CHANGE |
 	     PS_SAMPLER_STATE_CHANGE |
 	     (4 - 2));
-   OUT_BATCH(brw->vs.sampler_offset); /* VS */
+   OUT_BATCH(brw->vs.base.sampler_offset); /* VS */
    OUT_BATCH(0); /* GS */
    OUT_BATCH(brw->wm.sampler_offset);
    ADVANCE_BATCH();
diff --git a/src/mesa/drivers/dri/i965/gen6_vs_state.c b/src/mesa/drivers/dri/i965/gen6_vs_state.c
index c5f2fd0..0342a22 100644
--- a/src/mesa/drivers/dri/i965/gen6_vs_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_vs_state.c
@@ -37,6 +37,8 @@ static void
 gen6_upload_vs_push_constants(struct brw_context *brw)
 {
    struct gl_context *ctx = &brw->ctx;
+   struct brw_stage_state *stage_state = &brw->vs.base;
+
    /* _BRW_NEW_VERTEX_PROGRAM */
    const struct brw_vertex_program *vp =
       brw_vertex_program_const(brw->vertex_program);
@@ -49,7 +51,7 @@ gen6_upload_vs_push_constants(struct brw_context *brw)
 
    /* CACHE_NEW_VS_PROG */
    if (brw->vs.prog_data->base.nr_params == 0) {
-      brw->vs.push_const_size = 0;
+      stage_state->push_const_size = 0;
    } else {
       int params_uploaded;
       float *param;
@@ -57,7 +59,7 @@ gen6_upload_vs_push_constants(struct brw_context *brw)
 
       param = brw_state_batch(brw, AUB_TRACE_VS_CONSTANTS,
 			      brw->vs.prog_data->base.nr_params * sizeof(float),
-			      32, &brw->vs.push_const_offset);
+			      32, &stage_state->push_const_offset);
 
       /* _NEW_PROGRAM_CONSTANTS
        *
@@ -79,9 +81,9 @@ gen6_upload_vs_push_constants(struct brw_context *brw)
 	 }
       }
 
-      brw->vs.push_const_size = (params_uploaded + 1) / 2;
+      stage_state->push_const_size = (params_uploaded + 1) / 2;
       /* We can only push 32 registers of constants at a time. */
-      assert(brw->vs.push_const_size <= 32);
+      assert(stage_state->push_const_size <= 32);
    }
 }
 
@@ -99,6 +101,7 @@ static void
 upload_vs_state(struct brw_context *brw)
 {
    struct gl_context *ctx = &brw->ctx;
+   const struct brw_stage_state *stage_state = &brw->vs.base;
    uint32_t floating_point_mode = 0;
 
    /* From the BSpec, 3D Pipeline > Geometry > Vertex Shader > State,
@@ -114,7 +117,7 @@ upload_vs_state(struct brw_context *brw)
     */
    intel_emit_post_sync_nonzero_flush(brw);
 
-   if (brw->vs.push_const_size == 0) {
+   if (stage_state->push_const_size == 0) {
       /* Disable the push constant buffers. */
       BEGIN_BATCH(5);
       OUT_BATCH(_3DSTATE_CONSTANT_VS << 16 | (5 - 2));
@@ -131,8 +134,8 @@ upload_vs_state(struct brw_context *brw)
       /* Pointer to the VS constant buffer.  Covered by the set of
        * state flags from gen6_upload_vs_constants
        */
-      OUT_BATCH(brw->vs.push_const_offset +
-		brw->vs.push_const_size - 1);
+      OUT_BATCH(stage_state->push_const_offset +
+		stage_state->push_const_size - 1);
       OUT_BATCH(0);
       OUT_BATCH(0);
       OUT_BATCH(0);
@@ -147,12 +150,12 @@ upload_vs_state(struct brw_context *brw)
 
    BEGIN_BATCH(6);
    OUT_BATCH(_3DSTATE_VS << 16 | (6 - 2));
-   OUT_BATCH(brw->vs.prog_offset);
+   OUT_BATCH(stage_state->prog_offset);
    OUT_BATCH(floating_point_mode |
-	     ((ALIGN(brw->vs.sampler_count, 4)/4) << GEN6_VS_SAMPLER_COUNT_SHIFT));
+	     ((ALIGN(stage_state->sampler_count, 4)/4) << GEN6_VS_SAMPLER_COUNT_SHIFT));
 
    if (brw->vs.prog_data->base.total_scratch) {
-      OUT_RELOC(brw->vs.scratch_bo,
+      OUT_RELOC(stage_state->scratch_bo,
 		I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
 		ffs(brw->vs.prog_data->base.total_scratch) - 11);
    } else {
diff --git a/src/mesa/drivers/dri/i965/gen7_vs_state.c b/src/mesa/drivers/dri/i965/gen7_vs_state.c
index ce584f6..950e296 100644
--- a/src/mesa/drivers/dri/i965/gen7_vs_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_vs_state.c
@@ -33,6 +33,7 @@ static void
 upload_vs_state(struct brw_context *brw)
 {
    struct gl_context *ctx = &brw->ctx;
+   const struct brw_stage_state *stage_state = &brw->vs.base;
    uint32_t floating_point_mode = 0;
    const int max_threads_shift = brw->is_haswell ?
       HSW_VS_MAX_THREADS_SHIFT : GEN6_VS_MAX_THREADS_SHIFT;
@@ -42,16 +43,16 @@ upload_vs_state(struct brw_context *brw)
    /* BRW_NEW_VS_BINDING_TABLE */
    BEGIN_BATCH(2);
    OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS_VS << 16 | (2 - 2));
-   OUT_BATCH(brw->vs.bind_bo_offset);
+   OUT_BATCH(stage_state->bind_bo_offset);
    ADVANCE_BATCH();
 
    /* CACHE_NEW_SAMPLER */
    BEGIN_BATCH(2);
    OUT_BATCH(_3DSTATE_SAMPLER_STATE_POINTERS_VS << 16 | (2 - 2));
-   OUT_BATCH(brw->vs.sampler_offset);
+   OUT_BATCH(stage_state->sampler_offset);
    ADVANCE_BATCH();
 
-   if (brw->vs.push_const_size == 0) {
+   if (stage_state->push_const_size == 0) {
       /* Disable the push constant buffers. */
       BEGIN_BATCH(7);
       OUT_BATCH(_3DSTATE_CONSTANT_VS << 16 | (7 - 2));
@@ -65,12 +66,12 @@ upload_vs_state(struct brw_context *brw)
    } else {
       BEGIN_BATCH(7);
       OUT_BATCH(_3DSTATE_CONSTANT_VS << 16 | (7 - 2));
-      OUT_BATCH(brw->vs.push_const_size);
+      OUT_BATCH(stage_state->push_const_size);
       OUT_BATCH(0);
       /* Pointer to the VS constant buffer.  Covered by the set of
        * state flags from gen6_prepare_wm_contants
        */
-      OUT_BATCH(brw->vs.push_const_offset | GEN7_MOCS_L3);
+      OUT_BATCH(stage_state->push_const_offset | GEN7_MOCS_L3);
       OUT_BATCH(0);
       OUT_BATCH(0);
       OUT_BATCH(0);
@@ -85,12 +86,13 @@ upload_vs_state(struct brw_context *brw)
 
    BEGIN_BATCH(6);
    OUT_BATCH(_3DSTATE_VS << 16 | (6 - 2));
-   OUT_BATCH(brw->vs.prog_offset);
+   OUT_BATCH(stage_state->prog_offset);
    OUT_BATCH(floating_point_mode |
-	     ((ALIGN(brw->vs.sampler_count, 4)/4) << GEN6_VS_SAMPLER_COUNT_SHIFT));
+	     ((ALIGN(stage_state->sampler_count, 4)/4) <<
+              GEN6_VS_SAMPLER_COUNT_SHIFT));
 
    if (brw->vs.prog_data->base.total_scratch) {
-      OUT_RELOC(brw->vs.scratch_bo,
+      OUT_RELOC(stage_state->scratch_bo,
 		I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
 		ffs(brw->vs.prog_data->base.total_scratch) - 11);
    } else {