From: Marek Olšák <marek.ol...@amd.com>

This will allow supporting NULL textures.
---
 src/gallium/drivers/radeonsi/si_descriptors.c | 2 +-
 src/gallium/drivers/radeonsi/si_pipe.h        | 2 ++
 src/gallium/drivers/radeonsi/si_shader.c      | 4 ++--
 src/gallium/drivers/radeonsi/si_state.c       | 8 ++++----
 4 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/gallium/drivers/radeonsi/si_descriptors.c 
b/src/gallium/drivers/radeonsi/si_descriptors.c
index 573787a..15b4da1 100644
--- a/src/gallium/drivers/radeonsi/si_descriptors.c
+++ b/src/gallium/drivers/radeonsi/si_descriptors.c
@@ -1063,7 +1063,7 @@ static void si_invalidate_buffer(struct pipe_context 
*ctx, struct pipe_resource
        /* Texture buffers - update virtual addresses in sampler view 
descriptors. */
        LIST_FOR_EACH_ENTRY(view, &sctx->b.texture_buffers, list) {
                if (view->base.texture == buf) {
-                       si_desc_reset_buffer_offset(ctx, view->state, old_va, 
buf);
+                       si_desc_reset_buffer_offset(ctx, &view->state[4], 
old_va, buf);
                }
        }
        /* Texture buffers - update bindings. */
diff --git a/src/gallium/drivers/radeonsi/si_pipe.h 
b/src/gallium/drivers/radeonsi/si_pipe.h
index b88f154..d2edcdf 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.h
+++ b/src/gallium/drivers/radeonsi/si_pipe.h
@@ -90,6 +90,8 @@ struct si_sampler_view {
        struct pipe_sampler_view        base;
        struct list_head                list;
        struct r600_resource            *resource;
+        /* [0..7] = image descriptor
+         * [4..7] = buffer descriptor */
        uint32_t                        state[8];
        uint32_t                        fmask_state[8];
 };
diff --git a/src/gallium/drivers/radeonsi/si_shader.c 
b/src/gallium/drivers/radeonsi/si_shader.c
index 52f1fa4..2c1dac9 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -1538,7 +1538,7 @@ static void tex_fetch_args(
                /* Bitcast and truncate v8i32 to v16i8. */
                LLVMValueRef res = si_shader_ctx->resources[sampler_index];
                res = LLVMBuildBitCast(gallivm->builder, res, v2i128, "");
-               res = LLVMBuildExtractElement(gallivm->builder, res, 
bld_base->uint_bld.zero, "");
+               res = LLVMBuildExtractElement(gallivm->builder, res, 
bld_base->uint_bld.one, "");
                res = LLVMBuildBitCast(gallivm->builder, res, v16i8, "");
 
                emit_data->dst_type = LLVMVectorType(bld_base->base.elem_type, 
4);
@@ -2016,7 +2016,7 @@ static void txq_fetch_args(
                LLVMValueRef size = 
si_shader_ctx->resources[inst->Src[1].Register.Index];
                size = LLVMBuildBitCast(gallivm->builder, size, v8i32, "");
                size = LLVMBuildExtractElement(gallivm->builder, size,
-                                             lp_build_const_int32(gallivm, 2), 
"");
+                                             lp_build_const_int32(gallivm, 6), 
"");
                emit_data->args[0] = size;
                return;
        }
diff --git a/src/gallium/drivers/radeonsi/si_state.c 
b/src/gallium/drivers/radeonsi/si_state.c
index 7086363..85954b7 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -2262,11 +2262,11 @@ static struct pipe_sampler_view 
*si_create_sampler_view(struct pipe_context *ctx
                format = si_translate_buffer_dataformat(ctx->screen, desc, 
first_non_void);
                num_format = si_translate_buffer_numformat(ctx->screen, desc, 
first_non_void);
 
-               view->state[0] = va;
-               view->state[1] = S_008F04_BASE_ADDRESS_HI(va >> 32) |
+               view->state[4] = va;
+               view->state[5] = S_008F04_BASE_ADDRESS_HI(va >> 32) |
                                 S_008F04_STRIDE(stride);
-               view->state[2] = state->u.buf.last_element + 1 - 
state->u.buf.first_element;
-               view->state[3] = 
S_008F0C_DST_SEL_X(si_map_swizzle(desc->swizzle[0])) |
+               view->state[6] = state->u.buf.last_element + 1 - 
state->u.buf.first_element;
+               view->state[7] = 
S_008F0C_DST_SEL_X(si_map_swizzle(desc->swizzle[0])) |
                                 
S_008F0C_DST_SEL_Y(si_map_swizzle(desc->swizzle[1])) |
                                 
S_008F0C_DST_SEL_Z(si_map_swizzle(desc->swizzle[2])) |
                                 
S_008F0C_DST_SEL_W(si_map_swizzle(desc->swizzle[3])) |
-- 
2.1.0

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