radeonsi: expand constbuf 0 address correctly to fix Vega10 hangs

This is only required with the latest libdrm.

This fixes 32-bit support with high addresses.
(and possibly 64-bit support too because the high bits need to be masked out)

Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index fa7a19cb3ac67619aece0adae4be52e2ee127cb7..95258b74f733c14dd744c6bd3e020d3af21a8767 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -2427,12 +2427,25 @@ static LLVMValueRef fetch_constant(
                 * addresses generates horrible VALU code with very high
                 * VGPR usage and very low SIMD occupancy.
                 */
-               ptr = LLVMBuildPtrToInt(ctx->ac.builder, ptr, ctx->i64, "");
-               ptr = LLVMBuildBitCast(ctx->ac.builder, ptr, ctx->v2i32, "");
+               ptr = LLVMBuildPtrToInt(ctx->ac.builder, ptr, ctx->ac.intptr, "");
+
+               LLVMValueRef desc0, desc1;
+               if (HAVE_32BIT_POINTERS) {
+                       desc0 = ptr;
+                       desc1 = LLVMConstInt(ctx->i32,
+                                            S_008F04_BASE_ADDRESS_HI(ctx->screen->info.address32_hi), 0);
+               } else {
+                       ptr = LLVMBuildBitCast(ctx->ac.builder, ptr, ctx->v2i32, "");
+                       desc0 = LLVMBuildExtractElement(ctx->ac.builder, ptr, ctx->i32_0, "");
+                       desc1 = LLVMBuildExtractElement(ctx->ac.builder, ptr, ctx->i32_1, "");
+                       /* Mask out all bits except BASE_ADDRESS_HI. */
+                       desc1 = LLVMBuildAnd(ctx->ac.builder, desc1,
+                                            LLVMConstInt(ctx->i32, ~C_008F04_BASE_ADDRESS_HI, 0), "");
+               }
 
                LLVMValueRef desc_elems[] = {
-                       LLVMBuildExtractElement(ctx->ac.builder, ptr, ctx->i32_0, ""),
-                       LLVMBuildExtractElement(ctx->ac.builder, ptr, ctx->i32_1, ""),
+                       desc0,
+                       desc1,
                        LLVMConstInt(ctx->i32, (sel->info.const_file_max[0] + 1) * 16, 0),
                        LLVMConstInt(ctx->i32,
                                S_008F0C_DST_SEL_X(V_008F0C_SQ_SEL_X) |