[Nouveau] [PATCH 2/2] nvc0: use SM35 ISA with GK20A

[Alexandre Courbot]

GK20A is mostly compatible with GK104, but uses the SM35 ISA. Use
the GK110 path when this chip is detected.

Signed-off-by: Alexandre Courbot <acourbot at nvidia.com>
---
 src/gallium/drivers/nouveau/codegen/nv50_ir_driver.h        |  1 +
 src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp   |  2 +-
 src/gallium/drivers/nouveau/codegen/nv50_ir_target_nvc0.cpp | 13 +++++++++----
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_driver.h b/src/gallium/drivers/nouveau/codegen/nv50_ir_driver.h
index bbb89d97932e..aab857ee7e4f 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_driver.h
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_driver.h
@@ -91,6 +91,7 @@ struct nv50_ir_prog_symbol
 #define NVISA_GF100_CHIPSET_C0 0xc0
 #define NVISA_GF100_CHIPSET_D0 0xd0
 #define NVISA_GK104_CHIPSET    0xe0
+#define NVISA_GK20A_CHIPSET    0xea
 #define NVISA_GK110_CHIPSET    0xf0
 #define NVISA_GM107_CHIPSET    0x110
 
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp
index b1f76cf80432..f69e6a183e19 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp
@@ -3027,7 +3027,7 @@ TargetNVC0::createCodeEmitterNVC0(Program::Type type)
 CodeEmitter *
 TargetNVC0::getCodeEmitter(Program::Type type)
 {
-   if (chipset >= NVISA_GK110_CHIPSET)
+   if (chipset >= NVISA_GK20A_CHIPSET)
       return createCodeEmitterGK110(type);
    return createCodeEmitterNVC0(type);
 }
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nvc0.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nvc0.cpp
index 064e7a2c63f9..8212bfd9555e 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nvc0.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nvc0.cpp
@@ -49,9 +49,12 @@ TargetNVC0::getBuiltinCode(const uint32_t **code, uint32_t *size) const
 {
    switch (chipset & ~0xf) {
    case 0xe0:
-      *code = (const uint32_t *)&gk104_builtin_code[0];
-      *size = sizeof(gk104_builtin_code);
-      break;
+      if (chipset != NVISA_GK20A_CHIPSET) {
+         *code = (const uint32_t *)&gk104_builtin_code[0];
+         *size = sizeof(gk104_builtin_code);
+         break;
+      }
+      /* fall-through for GK20A */
    case 0xf0:
    case 0x100:
       *code = (const uint32_t *)&gk110_builtin_code[0];
@@ -71,7 +74,9 @@ TargetNVC0::getBuiltinOffset(int builtin) const
 
    switch (chipset & ~0xf) {
    case 0xe0:
-      return gk104_builtin_offsets[builtin];
+      if (chipset != NVISA_GK20A_CHIPSET)
+         return gk104_builtin_offsets[builtin];
+      /* fall-through for GK20A */
    case 0xf0:
    case 0x100:
       return gk110_builtin_offsets[builtin];
-- 
1.9.3