radeonsi: implement set_shader_images (v2)
authorNicolai Hähnle <nicolai.haehnle@amd.com>
Sat, 6 Feb 2016 23:32:13 +0000 (18:32 -0500)
committerNicolai Hähnle <nicolai.haehnle@amd.com>
Mon, 21 Mar 2016 20:34:23 +0000 (15:34 -0500)
Whether DCC is disabled depends on the access flags with which the image
is bound: image_load supports DCC, but store and atomic don't.

v2: remove an unnecessary masking of images->desc.enabled_mask

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
src/gallium/drivers/radeonsi/si_descriptors.c
src/gallium/drivers/radeonsi/si_pipe.h
src/gallium/drivers/radeonsi/si_shader.c
src/gallium/drivers/radeonsi/si_shader.h
src/gallium/drivers/radeonsi/si_state.c
src/gallium/drivers/radeonsi/si_state.h

index d12b3e6b28a6ee895ad0872ea41997b03840e2aa..a931ab245542f57d238b91aecefd08253c8ca2d2 100644 (file)
@@ -64,7 +64,8 @@
 #include "util/u_upload_mgr.h"
 
 
-/* NULL image and buffer descriptor.
+/* NULL image and buffer descriptor for textures (alpha = 1) and images
+ * (alpha = 0).
  *
  * For images, all fields must be zero except for the swizzle, which
  * supports arbitrary combinations of 0s and 1s. The texture type must be
@@ -74,7 +75,7 @@
  *
  * This is the only reason why the buffer descriptor must be in words [4:7].
  */
-static uint32_t null_descriptor[8] = {
+static uint32_t null_texture_descriptor[8] = {
        0,
        0,
        0,
@@ -84,10 +85,20 @@ static uint32_t null_descriptor[8] = {
         * descriptor */
 };
 
+static uint32_t null_image_descriptor[8] = {
+       0,
+       0,
+       0,
+       S_008F1C_TYPE(V_008F1C_SQ_RSRC_IMG_1D)
+       /* the rest must contain zeros, which is also used by the buffer
+        * descriptor */
+};
+
 static void si_init_descriptors(struct si_descriptors *desc,
                                unsigned shader_userdata_index,
                                unsigned element_dw_size,
-                               unsigned num_elements)
+                               unsigned num_elements,
+                               const uint32_t *null_descriptor)
 {
        int i;
 
@@ -100,10 +111,12 @@ static void si_init_descriptors(struct si_descriptors *desc,
        desc->shader_userdata_offset = shader_userdata_index * 4;
 
        /* Initialize the array to NULL descriptors if the element size is 8. */
-       if (element_dw_size % 8 == 0)
+       if (null_descriptor) {
+               assert(element_dw_size % 8 == 0);
                for (i = 0; i < num_elements * element_dw_size / 8; i++)
-                       memcpy(desc->list + i*8, null_descriptor,
-                              sizeof(null_descriptor));
+                       memcpy(desc->list + i * 8, null_descriptor,
+                              8 * 4);
+       }
 }
 
 static void si_release_descriptors(struct si_descriptors *desc)
@@ -210,7 +223,7 @@ static void si_set_sampler_view(struct si_context *sctx,
                } else {
                        /* Disable FMASK and bind sampler state in [12:15]. */
                        memcpy(views->desc.list + slot*16 + 8,
-                              null_descriptor, 4*4);
+                              null_texture_descriptor, 4*4);
 
                        if (views->sampler_states[slot])
                                memcpy(views->desc.list + slot*16 + 12,
@@ -220,9 +233,9 @@ static void si_set_sampler_view(struct si_context *sctx,
                views->desc.enabled_mask |= 1llu << slot;
        } else {
                pipe_sampler_view_reference(&views->views[slot], NULL);
-               memcpy(views->desc.list + slot*16, null_descriptor, 8*4);
+               memcpy(views->desc.list + slot*16, null_texture_descriptor, 8*4);
                /* Only clear the lower dwords of FMASK. */
-               memcpy(views->desc.list + slot*16 + 8, null_descriptor, 4*4);
+               memcpy(views->desc.list + slot*16 + 8, null_texture_descriptor, 4*4);
                views->desc.enabled_mask &= ~(1llu << slot);
        }
 
@@ -301,6 +314,160 @@ si_samplers_update_compressed_colortex_mask(struct si_textures_info *samplers)
        }
 }
 
+/* IMAGE VIEWS */
+
+static void
+si_release_image_views(struct si_images_info *images)
+{
+       unsigned i;
+
+       for (i = 0; i < SI_NUM_IMAGES; ++i) {
+               struct pipe_image_view *view = &images->views[i];
+
+               pipe_resource_reference(&view->resource, NULL);
+       }
+
+       si_release_descriptors(&images->desc);
+}
+
+static void
+si_image_views_begin_new_cs(struct si_context *sctx, struct si_images_info *images)
+{
+       uint mask = images->desc.enabled_mask;
+
+       /* Add buffers to the CS. */
+       while (mask) {
+               int i = u_bit_scan(&mask);
+               struct pipe_image_view *view = &images->views[i];
+
+               assert(view->resource);
+
+               si_sampler_view_add_buffer(sctx, view->resource);
+       }
+
+       if (images->desc.buffer) {
+               radeon_add_to_buffer_list(&sctx->b, &sctx->b.gfx,
+                                         images->desc.buffer,
+                                         RADEON_USAGE_READ,
+                                         RADEON_PRIO_DESCRIPTORS);
+       }
+}
+
+static void
+si_disable_shader_image(struct si_images_info *images, unsigned slot)
+{
+       if (images->desc.enabled_mask & (1llu << slot)) {
+               pipe_resource_reference(&images->views[slot].resource, NULL);
+               images->compressed_colortex_mask &= ~(1 << slot);
+
+               memcpy(images->desc.list + slot*8, null_image_descriptor, 8*4);
+               images->desc.enabled_mask &= ~(1llu << slot);
+               images->desc.list_dirty = true;
+       }
+}
+
+static void
+si_set_shader_images(struct pipe_context *pipe, unsigned shader,
+                    unsigned start_slot, unsigned count,
+                    struct pipe_image_view *views)
+{
+       struct si_context *ctx = (struct si_context *)pipe;
+       struct si_screen *screen = ctx->screen;
+       struct si_images_info *images = &ctx->images[shader];
+       unsigned i, slot;
+
+       assert(shader < SI_NUM_SHADERS);
+
+       if (!count)
+               return;
+
+       assert(start_slot + count <= SI_NUM_IMAGES);
+
+       for (i = 0, slot = start_slot; i < count; ++i, ++slot) {
+               struct r600_resource *res;
+
+               if (!views || !views[i].resource) {
+                       si_disable_shader_image(images, slot);
+                       continue;
+               }
+
+               res = (struct r600_resource *)views[i].resource;
+               util_copy_image_view(&images->views[slot], &views[i]);
+
+               si_sampler_view_add_buffer(ctx, &res->b.b);
+
+               if (res->b.b.target == PIPE_BUFFER) {
+                       si_make_buffer_descriptor(screen, res,
+                                                 views[i].format,
+                                                 views[i].u.buf.first_element,
+                                                 views[i].u.buf.last_element,
+                                                 images->desc.list + slot * 8);
+                       images->compressed_colortex_mask &= ~(1 << slot);
+               } else {
+                       static const unsigned char swizzle[4] = { 0, 1, 2, 3 };
+                       struct r600_texture *tex = (struct r600_texture *)res;
+                       unsigned level;
+                       unsigned width, height, depth;
+
+                       assert(!tex->is_depth);
+                       assert(tex->fmask.size == 0);
+
+                       if (tex->dcc_offset &&
+                           views[i].access & PIPE_IMAGE_ACCESS_WRITE)
+                               r600_texture_disable_dcc(&screen->b, tex);
+
+                       if (is_compressed_colortex(tex)) {
+                               images->compressed_colortex_mask |= 1 << slot;
+                       } else {
+                               images->compressed_colortex_mask &= ~(1 << slot);
+                       }
+
+                       /* Always force the base level to the selected level.
+                        *
+                        * This is required for 3D textures, where otherwise
+                        * selecting a single slice for non-layered bindings
+                        * fails. It doesn't hurt the other targets.
+                        */
+                       level = views[i].u.tex.level;
+                       width = u_minify(res->b.b.width0, level);
+                       height = u_minify(res->b.b.height0, level);
+                       depth = u_minify(res->b.b.depth0, level);
+
+                       si_make_texture_descriptor(screen, tex, false, res->b.b.target,
+                                                  views[i].format, swizzle,
+                                                  level, 0, 0,
+                                                  views[i].u.tex.first_layer, views[i].u.tex.last_layer,
+                                                  width, height, depth,
+                                                  images->desc.list + slot * 8,
+                                                  NULL);
+               }
+
+               images->desc.enabled_mask |= 1llu << slot;
+               images->desc.list_dirty = true;
+       }
+}
+
+static void
+si_images_update_compressed_colortex_mask(struct si_images_info *images)
+{
+       uint64_t mask = images->desc.enabled_mask;
+
+       while (mask) {
+               int i = u_bit_scan64(&mask);
+               struct pipe_resource *res = images->views[i].resource;
+
+               if (res && res->target != PIPE_BUFFER) {
+                       struct r600_texture *rtex = (struct r600_texture *)res;
+
+                       if (is_compressed_colortex(rtex)) {
+                               images->compressed_colortex_mask |= 1 << i;
+                       } else {
+                               images->compressed_colortex_mask &= ~(1 << i);
+                       }
+               }
+       }
+}
+
 /* SAMPLER STATES */
 
 static void si_bind_sampler_states(struct pipe_context *ctx, unsigned shader,
@@ -351,7 +518,7 @@ static void si_init_buffer_resources(struct si_buffer_resources *buffers,
        buffers->buffers = CALLOC(num_buffers, sizeof(struct pipe_resource*));
 
        si_init_descriptors(&buffers->desc, shader_userdata_index, 4,
-                           num_buffers);
+                           num_buffers, NULL);
 }
 
 static void si_release_buffer_resources(struct si_buffer_resources *buffers)
@@ -804,6 +971,7 @@ void si_update_compressed_colortex_masks(struct si_context *sctx)
 {
        for (int i = 0; i < SI_NUM_SHADERS; ++i) {
                si_samplers_update_compressed_colortex_mask(&sctx->samplers[i]);
+               si_images_update_compressed_colortex_mask(&sctx->images[i]);
        }
 }
 
@@ -925,6 +1093,8 @@ static void si_invalidate_buffer(struct pipe_context *ctx, struct pipe_resource
                        }
                }
        }
+
+       /* Shader images - update TODO */
 }
 
 /* SHADER USER DATA */
@@ -1055,6 +1225,7 @@ void si_emit_shader_userdata(struct si_context *sctx, struct r600_atom *atom)
 
                si_emit_shader_pointer(sctx, &sctx->const_buffers[i].desc, base, false);
                si_emit_shader_pointer(sctx, &sctx->samplers[i].views.desc, base, false);
+               si_emit_shader_pointer(sctx, &sctx->images[i].desc, base, false);
        }
        si_emit_shader_pointer(sctx, &sctx->vertex_buffers, sh_base[PIPE_SHADER_VERTEX], false);
 }
@@ -1074,14 +1245,20 @@ void si_init_all_descriptors(struct si_context *sctx)
                                         RADEON_USAGE_READWRITE, RADEON_PRIO_RINGS_STREAMOUT);
 
                si_init_descriptors(&sctx->samplers[i].views.desc,
-                                   SI_SGPR_SAMPLERS, 16, SI_NUM_SAMPLERS);
+                                   SI_SGPR_SAMPLERS, 16, SI_NUM_SAMPLERS,
+                                   null_texture_descriptor);
+
+               si_init_descriptors(&sctx->images[i].desc,
+                                   SI_SGPR_IMAGES, 8, SI_NUM_IMAGES,
+                                   null_image_descriptor);
        }
 
        si_init_descriptors(&sctx->vertex_buffers, SI_SGPR_VERTEX_BUFFERS,
-                           4, SI_NUM_VERTEX_BUFFERS);
+                           4, SI_NUM_VERTEX_BUFFERS, NULL);
 
        /* Set pipe_context functions. */
        sctx->b.b.bind_sampler_states = si_bind_sampler_states;
+       sctx->b.b.set_shader_images = si_set_shader_images;
        sctx->b.b.set_constant_buffer = si_set_constant_buffer;
        sctx->b.b.set_sampler_views = si_set_sampler_views;
        sctx->b.b.set_stream_output_targets = si_set_streamout_targets;
@@ -1105,7 +1282,8 @@ bool si_upload_shader_descriptors(struct si_context *sctx)
        for (i = 0; i < SI_NUM_SHADERS; i++) {
                if (!si_upload_descriptors(sctx, &sctx->const_buffers[i].desc) ||
                    !si_upload_descriptors(sctx, &sctx->rw_buffers[i].desc) ||
-                   !si_upload_descriptors(sctx, &sctx->samplers[i].views.desc))
+                   !si_upload_descriptors(sctx, &sctx->samplers[i].views.desc) ||
+                   !si_upload_descriptors(sctx, &sctx->images[i].desc))
                        return false;
        }
        return si_upload_vertex_buffer_descriptors(sctx);
@@ -1119,6 +1297,7 @@ void si_release_all_descriptors(struct si_context *sctx)
                si_release_buffer_resources(&sctx->const_buffers[i]);
                si_release_buffer_resources(&sctx->rw_buffers[i]);
                si_release_sampler_views(&sctx->samplers[i].views);
+               si_release_image_views(&sctx->images[i]);
        }
        si_release_descriptors(&sctx->vertex_buffers);
 }
@@ -1131,6 +1310,7 @@ void si_all_descriptors_begin_new_cs(struct si_context *sctx)
                si_buffer_resources_begin_new_cs(sctx, &sctx->const_buffers[i]);
                si_buffer_resources_begin_new_cs(sctx, &sctx->rw_buffers[i]);
                si_sampler_views_begin_new_cs(sctx, &sctx->samplers[i].views);
+               si_image_views_begin_new_cs(sctx, &sctx->images[i]);
        }
        si_vertex_buffers_begin_new_cs(sctx);
        si_shader_userdata_begin_new_cs(sctx);
index 0fef5f720980c40c667b8648e77e3377226e157a..6d0d687fe4c1591c3d5a138b68f4b357c30fae4a 100644 (file)
@@ -141,6 +141,12 @@ struct si_textures_info {
        uint32_t                        compressed_colortex_mask;
 };
 
+struct si_images_info {
+       struct si_descriptors           desc;
+       struct pipe_image_view          views[SI_NUM_IMAGES];
+       uint32_t                        compressed_colortex_mask;
+};
+
 struct si_framebuffer {
        struct r600_atom                atom;
        struct pipe_framebuffer_state   state;
@@ -251,6 +257,7 @@ struct si_context {
        struct si_buffer_resources      const_buffers[SI_NUM_SHADERS];
        struct si_buffer_resources      rw_buffers[SI_NUM_SHADERS];
        struct si_textures_info         samplers[SI_NUM_SHADERS];
+       struct si_images_info           images[SI_NUM_SHADERS];
 
        /* other shader resources */
        struct pipe_constant_buffer     null_const_buf; /* used for set_constant_buffer(NULL) on CIK */
index 151615eb4e7057a982d1f82839b79851b5b624f5..c95e2fe2c61daa5e8374ec7a53932ace09da8e38 100644 (file)
@@ -3865,8 +3865,8 @@ static void create_function(struct si_shader_context *ctx)
        params[SI_PARAM_RW_BUFFERS] = const_array(ctx->v16i8, SI_NUM_RW_BUFFERS);
        params[SI_PARAM_CONST_BUFFERS] = const_array(ctx->v16i8, SI_NUM_CONST_BUFFERS);
        params[SI_PARAM_SAMPLERS] = const_array(ctx->v8i32, SI_NUM_SAMPLERS);
-       params[SI_PARAM_UNUSED] = LLVMPointerType(ctx->i32, CONST_ADDR_SPACE);
-       last_array_pointer = SI_PARAM_UNUSED;
+       params[SI_PARAM_IMAGES] = const_array(ctx->v8i32, SI_NUM_IMAGES);
+       last_array_pointer = SI_PARAM_IMAGES;
 
        switch (ctx->type) {
        case TGSI_PROCESSOR_VERTEX:
@@ -5383,7 +5383,7 @@ static bool si_compile_tcs_epilog(struct si_screen *sscreen,
        last_array_pointer = SI_PARAM_RW_BUFFERS;
        params[SI_PARAM_CONST_BUFFERS] = ctx.i64;
        params[SI_PARAM_SAMPLERS] = ctx.i64;
-       params[SI_PARAM_UNUSED] = ctx.i64;
+       params[SI_PARAM_IMAGES] = ctx.i64;
        params[SI_PARAM_TCS_OUT_OFFSETS] = ctx.i32;
        params[SI_PARAM_TCS_OUT_LAYOUT] = ctx.i32;
        params[SI_PARAM_TCS_IN_LAYOUT] = ctx.i32;
@@ -5633,7 +5633,7 @@ static bool si_compile_ps_epilog(struct si_screen *sscreen,
        params[SI_PARAM_RW_BUFFERS] = ctx.i64;
        params[SI_PARAM_CONST_BUFFERS] = ctx.i64;
        params[SI_PARAM_SAMPLERS] = ctx.i64;
-       params[SI_PARAM_UNUSED] = ctx.i64;
+       params[SI_PARAM_IMAGES] = ctx.i64;
        params[SI_PARAM_ALPHA_REF] = ctx.f32;
        last_array_pointer = -1;
        last_sgpr = SI_PARAM_ALPHA_REF;
index de23e642fe4711c07b9df835ea4fe89f0f4471b0..8059edf639561939c32d1853ed33ea9475c9838a 100644 (file)
@@ -80,7 +80,7 @@ struct radeon_shader_reloc;
 #define SI_SGPR_RW_BUFFERS     0  /* rings (& stream-out, VS only) */
 #define SI_SGPR_CONST_BUFFERS  2
 #define SI_SGPR_SAMPLERS       4  /* images & sampler states interleaved */
-/* TODO: gap */
+#define SI_SGPR_IMAGES         6
 #define SI_SGPR_VERTEX_BUFFERS 8  /* VS only */
 #define SI_SGPR_BASE_VERTEX    10 /* VS only */
 #define SI_SGPR_START_INSTANCE 11 /* VS only */
@@ -104,7 +104,7 @@ struct radeon_shader_reloc;
 #define SI_PARAM_RW_BUFFERS    0
 #define SI_PARAM_CONST_BUFFERS 1
 #define SI_PARAM_SAMPLERS      2
-#define SI_PARAM_UNUSED                3 /* TODO: use */
+#define SI_PARAM_IMAGES                3
 
 /* VS only parameters */
 #define SI_PARAM_VERTEX_BUFFERS        4
index f823af188c7f619d19c822cffc9aa7f00187bff2..0c3fbdc9b317982b40fc0ada54ae07390efc796b 100644 (file)
@@ -2797,7 +2797,7 @@ static void si_set_min_samples(struct pipe_context *ctx, unsigned min_samples)
  * Build the sampler view descriptor for a buffer texture.
  * @param state 256-bit descriptor; only the high 128 bits are filled in
  */
-static void
+void
 si_make_buffer_descriptor(struct si_screen *screen, struct r600_resource *buf,
                          enum pipe_format format,
                          unsigned first_element, unsigned last_element,
@@ -2838,9 +2838,10 @@ si_make_buffer_descriptor(struct si_screen *screen, struct r600_resource *buf,
 /**
  * Build the sampler view descriptor for a texture.
  */
-static void
+void
 si_make_texture_descriptor(struct si_screen *screen,
                           struct r600_texture *tex,
+                          bool sampler,
                           enum pipe_texture_target target,
                           enum pipe_format pipe_format,
                           const unsigned char state_swizzle[4],
@@ -2855,7 +2856,7 @@ si_make_texture_descriptor(struct si_screen *screen,
        const struct util_format_description *desc;
        unsigned char swizzle[4];
        int first_non_void;
-       unsigned num_format, data_format;
+       unsigned num_format, data_format, type;
        uint32_t pitch;
        uint64_t va;
 
@@ -2973,12 +2974,29 @@ si_make_texture_descriptor(struct si_screen *screen,
                data_format = 0;
        }
 
-       if (res->target == PIPE_TEXTURE_1D_ARRAY) {
+       if (!sampler &&
+           (res->target == PIPE_TEXTURE_CUBE ||
+            res->target == PIPE_TEXTURE_CUBE_ARRAY ||
+            res->target == PIPE_TEXTURE_3D)) {
+               /* For the purpose of shader images, treat cube maps and 3D
+                * textures as 2D arrays. For 3D textures, the address
+                * calculations for mipmaps are different, so we rely on the
+                * caller to effectively disable mipmaps.
+                */
+               type = V_008F1C_SQ_RSRC_IMG_2D_ARRAY;
+
+               assert(res->target != PIPE_TEXTURE_3D || (first_level == 0 && last_level == 0));
+       } else {
+               type = si_tex_dim(res->target, target, res->nr_samples);
+       }
+
+       if (type == V_008F1C_SQ_RSRC_IMG_1D_ARRAY) {
                height = 1;
                depth = res->array_size;
-       } else if (res->target == PIPE_TEXTURE_2D_ARRAY) {
-               depth = res->array_size;
-       } else if (res->target == PIPE_TEXTURE_CUBE_ARRAY)
+       } else if (type == V_008F1C_SQ_RSRC_IMG_2D_ARRAY) {
+               if (sampler || res->target != PIPE_TEXTURE_3D)
+                       depth = res->array_size;
+       } else if (type == V_008F1C_SQ_RSRC_IMG_CUBE)
                depth = res->array_size / 6;
 
        pitch = surflevel[base_level].nblk_x * util_format_get_blockwidth(pipe_format);
@@ -3001,7 +3019,7 @@ si_make_texture_descriptor(struct si_screen *screen,
                                        last_level) |
                    S_008F1C_TILING_INDEX(si_tile_mode_index(tex, base_level, false)) |
                    S_008F1C_POW2_PAD(res->last_level > 0) |
-                   S_008F1C_TYPE(si_tex_dim(res->target, target, res->nr_samples)));
+                   S_008F1C_TYPE(type));
        state[4] = (S_008F20_DEPTH(depth - 1) | S_008F20_PITCH(pitch - 1));
        state[5] = (S_008F24_BASE_ARRAY(first_layer) |
                    S_008F24_LAST_ARRAY(last_layer));
@@ -3155,7 +3173,7 @@ si_create_sampler_view_custom(struct pipe_context *ctx,
            state->target == PIPE_TEXTURE_CUBE)
                last_layer = state->u.tex.first_layer;
 
-       si_make_texture_descriptor(sctx->screen, tmp, state->target,
+       si_make_texture_descriptor(sctx->screen, tmp, true, state->target,
                                   state->format, state_swizzle,
                                   base_level, first_level, last_level,
                                   state->u.tex.first_layer, last_layer,
@@ -3637,7 +3655,8 @@ static void si_query_opaque_metadata(struct r600_common_screen *rscreen,
        /* TILE_MODE_INDEX is ambiguous without a PCI ID. */
        md->metadata[1] = (ATI_VENDOR_ID << 16) | rscreen->info.pci_id;
 
-       si_make_texture_descriptor(sscreen, rtex, res->target, res->format,
+       si_make_texture_descriptor(sscreen, rtex, true,
+                                  res->target, res->format,
                                   swizzle, 0, 0, res->last_level, 0,
                                   is_array ? res->array_size - 1 : 0,
                                   res->width0, res->height0, res->depth0,
index 60c34f19e55092b32a04cd2ab545a32958b5709e..c4d6b9d9eee2d7ca663dc1cb944e2bc8bb25f8d7 100644 (file)
@@ -158,6 +158,8 @@ struct si_shader_data {
 #define SI_DRIVER_STATE_CONST_BUF      SI_NUM_USER_CONST_BUFFERS
 #define SI_NUM_CONST_BUFFERS           (SI_DRIVER_STATE_CONST_BUF + 1)
 
+#define SI_NUM_IMAGES                  16
+
 /* Read-write buffer slots.
  *
  * Ring buffers:        0..1
@@ -272,6 +274,23 @@ unsigned cik_tile_split(unsigned tile_split);
 unsigned si_array_mode(unsigned mode);
 uint32_t si_num_banks(struct si_screen *sscreen, struct r600_texture *tex);
 unsigned si_tile_mode_index(struct r600_texture *rtex, unsigned level, bool stencil);
+void
+si_make_buffer_descriptor(struct si_screen *screen, struct r600_resource *buf,
+                         enum pipe_format format,
+                         unsigned first_element, unsigned last_element,
+                         uint32_t *state);
+void
+si_make_texture_descriptor(struct si_screen *screen,
+                          struct r600_texture *tex,
+                          bool sampler,
+                          enum pipe_texture_target target,
+                          enum pipe_format pipe_format,
+                          const unsigned char state_swizzle[4],
+                          unsigned base_level, unsigned first_level, unsigned last_level,
+                          unsigned first_layer, unsigned last_layer,
+                          unsigned width, unsigned height, unsigned depth,
+                          uint32_t *state,
+                          uint32_t *fmask_state);
 struct pipe_sampler_view *
 si_create_sampler_view_custom(struct pipe_context *ctx,
                              struct pipe_resource *texture,