tgsi: provide a way to encode memory qualifiers for SSBO

Each load/store on most hardware can specify what caching to do. Since
SSBO allows individual variables to also have separate caching modes,
allow loads/stores to have the qualifiers instead of attempting to
encode them in declarations.

Signed-off-by: Ilia Mirkin <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>

1 files changed, 27 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/tgsi/tgsi_text.c b/src/gallium/auxiliary/tgsi/tgsi_text.c
index d72d843951a..97b1869a66f 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_text.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_text.c
@@ -1039,6 +1039,12 @@ parse_instruction(
       inst.Texture.Texture = TGSI_TEXTURE_UNKNOWN;
    }
 
+   if ((i >= TGSI_OPCODE_LOAD && i <= TGSI_OPCODE_ATOMIMAX) ||
+       i == TGSI_OPCODE_RESQ) {
+      inst.Instruction.Memory = 1;
+      inst.Memory.Qualifier = 0;
+   }
+
    /* Parse instruction operands.
     */
    for (i = 0; i < info->num_dst + info->num_src + info->is_tex; i++) {
@@ -1091,6 +1097,27 @@ parse_instruction(
    inst.Texture.NumOffsets = i;
 
    cur = ctx->cur;
+   eat_opt_white(&cur);
+   for (i = 0; inst.Instruction.Memory && *cur == ','; i++) {
+      uint j;
+      cur++;
+      eat_opt_white(&cur);
+      ctx->cur = cur;
+      for (j = 0; j < 3; j++) {
+         if (str_match_nocase_whole(&ctx->cur, tgsi_memory_names[j])) {
+            inst.Memory.Qualifier |= 1U << j;
+            break;
+         }
+      }
+      if (j == 3) {
+         report_error(ctx, "Expected memory qualifier");
+         return FALSE;
+      }
+      cur = ctx->cur;
+      eat_opt_white(&cur);
+   }
+
+   cur = ctx->cur;
    eat_opt_white( &cur );
    if (info->is_branch && *cur == ':') {
       uint target;