[Mesa-dev] [PATCH 1/2] radv/gfx10: don't initialize VGT_INSTANCE_STEP_RATE_0

[Samuel Pitoiset]

Only gfx9 and older use it to get InstanceID in VGPR1.
Ported from RadeonSI.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
---
 src/amd/vulkan/si_cmd_buffer.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/amd/vulkan/si_cmd_buffer.c b/src/amd/vulkan/si_cmd_buffer.c
index e37b9498a71..32674d38bb9 100644
--- a/src/amd/vulkan/si_cmd_buffer.c
+++ b/src/amd/vulkan/si_cmd_buffer.c
@@ -192,7 +192,8 @@ si_emit_graphics(struct radv_physical_device *physical_device,
 		radeon_set_context_reg(cs, R_028B98_VGT_STRMOUT_BUFFER_CONFIG, 0x0);
 	}
 
-	radeon_set_context_reg(cs, R_028AA0_VGT_INSTANCE_STEP_RATE_0, 1);
+	if (physical_device->rad_info.chip_class <= GFX9)
+		radeon_set_context_reg(cs, R_028AA0_VGT_INSTANCE_STEP_RATE_0, 1);
 	if (!physical_device->has_clear_state)
 		radeon_set_context_reg(cs, R_028AB8_VGT_VTX_CNT_EN, 0x0);
 	if (physical_device->rad_info.chip_class < GFX7)
-- 
2.22.1