[Mesa-dev] [PATCH] radeonsi: correct si_vgt_param_key on big endian machines

[Bas Vermeulen]

Using mesa OpenCL failed on a big endian PowerPC machine because
si_vgt_param_key is using bitfields and a 32 bit int for an
index into an array.

Fix si_vgt_param_key to work correctly on both little endian
and big endian machines.

Signed-off-by: Bas Vermeulen <bas at daedalean.ai>
---
 src/gallium/drivers/radeonsi/si_pipe.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/gallium/drivers/radeonsi/si_pipe.h b/src/gallium/drivers/radeonsi/si_pipe.h
index 2053dcb9fc..32dbdf6e2c 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.h
+++ b/src/gallium/drivers/radeonsi/si_pipe.h
@@ -385,6 +385,7 @@ struct si_shader_ctx_state {
  */
 union si_vgt_param_key {
 	struct {
+#if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
 		unsigned prim:4;
 		unsigned uses_instancing:1;
 		unsigned multi_instances_smaller_than_primgroup:1;
@@ -395,6 +396,18 @@ union si_vgt_param_key {
 		unsigned tess_uses_prim_id:1;
 		unsigned uses_gs:1;
 		unsigned _pad:32 - SI_NUM_VGT_PARAM_KEY_BITS;
+#else /* __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ */
+		unsigned _pad:32 - SI_NUM_VGT_PARAM_KEY_BITS;
+		unsigned uses_gs:1;
+		unsigned tess_uses_prim_id:1;
+		unsigned uses_tess:1;
+		unsigned line_stipple_enabled:1;
+		unsigned count_from_stream_output:1;
+		unsigned primitive_restart:1;
+		unsigned multi_instances_smaller_than_primgroup:1;
+		unsigned uses_instancing:1;
+		unsigned prim:4;
+#endif
 	} u;
 	uint32_t index;
 };
-- 
2.14.1


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