radv/gfx10: support pixel shaders without exports

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Samuel Pitoiset
2019-07-16 09:34:39 +02:00
parent 1b2bfeaaaa
commit 27d91062a8

View File

@@ -4283,9 +4283,15 @@ radv_pipeline_init(struct radv_pipeline *pipeline,
* stalls without this setting.
*
* Don't add this to CB_SHADER_MASK.
*
* GFX10 supports pixel shaders without exports by setting both the
* color and Z formats to SPI_SHADER_ZERO. The hw will skip export
* instructions if any are present.
*/
struct radv_shader_variant *ps = pipeline->shaders[MESA_SHADER_FRAGMENT];
if (!blend.spi_shader_col_format) {
if ((pipeline->device->physical_device->rad_info.chip_class <= GFX9 ||
ps->info.fs.can_discard) &&
!blend.spi_shader_col_format) {
if (!ps->info.info.ps.writes_z &&
!ps->info.info.ps.writes_stencil &&
!ps->info.info.ps.writes_sample_mask)