From: Marek Olšák <marek.ol...@amd.com>
Allocating it has no effect, but it adds overhead (useless DCC clear).
---
src/gallium/drivers/radeon/r600_pipe_common.h | 1 +
src/gallium/drivers/radeon/r600_texture.c | 3 ++-
src/gallium/drivers/radeonsi/si_blit.c | 3 ++-
3 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/src/gallium/drivers/radeon/r600_pipe_common.h
b/src/gallium/drivers/radeon/r600_pipe_common.h
index a917549..bb090d6 100644
--- a/src/gallium/drivers/radeon/r600_pipe_common.h
+++ b/src/gallium/drivers/radeon/r600_pipe_common.h
@@ -48,6 +48,7 @@
#define R600_RESOURCE_FLAG_TRANSFER (PIPE_RESOURCE_FLAG_DRV_PRIV <<
0)
#define R600_RESOURCE_FLAG_FLUSHED_DEPTH (PIPE_RESOURCE_FLAG_DRV_PRIV <<
1)
#define R600_RESOURCE_FLAG_FORCE_TILING
(PIPE_RESOURCE_FLAG_DRV_PRIV << 2)
+#define R600_RESOURCE_FLAG_DISABLE_DCC (PIPE_RESOURCE_FLAG_DRV_PRIV <<
3)
#define R600_CONTEXT_STREAMOUT_FLUSH (1u << 0)
/* Pipeline & streamout query controls. */
diff --git a/src/gallium/drivers/radeon/r600_texture.c
b/src/gallium/drivers/radeon/r600_texture.c
index 9daad65..b0f375e 100644
--- a/src/gallium/drivers/radeon/r600_texture.c
+++ b/src/gallium/drivers/radeon/r600_texture.c
@@ -263,7 +263,8 @@ static int r600_init_surface(struct r600_common_screen
*rscreen,
}
if (rscreen->chip_class >= VI &&
- ptex->format == PIPE_FORMAT_R9G9B9E5_FLOAT)
+ (ptex->flags & R600_RESOURCE_FLAG_DISABLE_DCC ||
+ ptex->format == PIPE_FORMAT_R9G9B9E5_FLOAT))
surface->flags |= RADEON_SURF_DISABLE_DCC;
if (ptex->bind & PIPE_BIND_SCANOUT) {
diff --git a/src/gallium/drivers/radeonsi/si_blit.c
b/src/gallium/drivers/radeonsi/si_blit.c
index c9e1d8b..c25a1b5 100644
--- a/src/gallium/drivers/radeonsi/si_blit.c
+++ b/src/gallium/drivers/radeonsi/si_blit.c
@@ -928,7 +928,8 @@ static bool do_hardware_msaa_resolve(struct pipe_context
*ctx,
templ.depth0 = 1;
templ.array_size = 1;
templ.usage = PIPE_USAGE_DEFAULT;
- templ.flags = R600_RESOURCE_FLAG_FORCE_TILING;
+ templ.flags = R600_RESOURCE_FLAG_FORCE_TILING |
+ R600_RESOURCE_FLAG_DISABLE_DCC;
tmp = ctx->screen->resource_create(ctx->screen, &templ);
if (!tmp)
--
2.7.4
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