[Nouveau] [PATCH mesa v2 2/2] nouveau: codegen: Add support for OpenCL global memory buffers

[Hans de Goede]

Add support for OpenCL global memory buffers, note this has only
been tested with regular load and stores and likely needs more work
for e.g. atomic ops.

Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
Changes in v2:
-Redo on top of new "Use FILE_MEMORY_BUFFER for buffers" patch
---
 src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
index 7ae0cb2..a7a1d54 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
@@ -1286,7 +1286,9 @@ bool Source::scanInstruction(const struct tgsi_full_instruction *inst)
          if (dst.isIndirect(0))
             indirectTempArrays.insert(dst.getArrayId());
       } else
-      if (dst.getFile() == TGSI_FILE_BUFFER) {
+      if (dst.getFile() == TGSI_FILE_BUFFER ||
+          (dst.getFile() == TGSI_FILE_MEMORY &&
+           memoryFiles[dst.getIndex(0)].mem_type == TGSI_MEMORY_TYPE_GLOBAL)) {
          info->io.globalAccess |= 0x2;
       }
    }
@@ -1297,7 +1299,9 @@ bool Source::scanInstruction(const struct tgsi_full_instruction *inst)
          if (src.isIndirect(0))
             indirectTempArrays.insert(src.getArrayId());
       } else
-      if (src.getFile() == TGSI_FILE_BUFFER) {
+      if (src.getFile() == TGSI_FILE_BUFFER ||
+          (src.getFile() == TGSI_FILE_MEMORY &&
+           memoryFiles[src.getIndex(0)].mem_type == TGSI_MEMORY_TYPE_GLOBAL)) {
          info->io.globalAccess |= (insn.getOpcode() == TGSI_OPCODE_LOAD) ?
                0x1 : 0x2;
       } else
@@ -1531,6 +1535,10 @@ Converter::makeSym(uint tgsiFile, int fileIdx, int idx, int c, uint32_t address)
 
    if (tgsiFile == TGSI_FILE_MEMORY) {
       switch (code->memoryFiles[fileIdx].mem_type) {
+      case TGSI_MEMORY_TYPE_GLOBAL:
+         /* No-op this is the default for TGSI_FILE_MEMORY */
+         sym->setFile(FILE_MEMORY_GLOBAL);
+         break;
       case TGSI_MEMORY_TYPE_SHARED:
          sym->setFile(FILE_MEMORY_SHARED);
          break;
-- 
2.7.3