Mesa (master): radeonsi: add and use si_pm4_state_enabled_and_changed

[Marek Olšák]

Module: Mesa
Branch: master
Commit: a7b0014d1a809268e55483ccc2c66674847f4a6e
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=a7b0014d1a809268e55483ccc2c66674847f4a6e

Author: Marek Olšák <marek.olsak at amd.com>
Date:   Fri Aug  4 17:06:24 2017 +0200

radeonsi: add and use si_pm4_state_enabled_and_changed

Tested-by: Dieter Nützel <Dieter at nuetzel-hh.de>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle at amd.com>

---

 src/gallium/drivers/radeonsi/si_cp_dma.c        | 20 +++++++++-----------
 src/gallium/drivers/radeonsi/si_state.h         |  3 +++
 src/gallium/drivers/radeonsi/si_state_shaders.c | 12 ++++++------
 3 files changed, 18 insertions(+), 17 deletions(-)

diff --git a/src/gallium/drivers/radeonsi/si_cp_dma.c b/src/gallium/drivers/radeonsi/si_cp_dma.c
index 9f0e506282..24fa6fd087 100644
--- a/src/gallium/drivers/radeonsi/si_cp_dma.c
+++ b/src/gallium/drivers/radeonsi/si_cp_dma.c
@@ -442,26 +442,24 @@ void cik_prefetch_TC_L2_async(struct si_context *sctx, struct pipe_resource *buf
 static void cik_prefetch_shader_async(struct si_context *sctx,
 				      struct si_pm4_state *state)
 {
-	if (state) {
-		struct pipe_resource *bo = &state->bo[0]->b.b;
-		assert(state->nbo == 1);
+	struct pipe_resource *bo = &state->bo[0]->b.b;
+	assert(state->nbo == 1);
 
-		cik_prefetch_TC_L2_async(sctx, bo, 0, bo->width0);
-	}
+	cik_prefetch_TC_L2_async(sctx, bo, 0, bo->width0);
 }
 
 void cik_emit_prefetch_L2(struct si_context *sctx)
 {
 	/* Prefetch shaders and VBO descriptors to TC L2. */
-	if (si_pm4_state_changed(sctx, ls))
+	if (si_pm4_state_enabled_and_changed(sctx, ls))
 		cik_prefetch_shader_async(sctx, sctx->queued.named.ls);
-	if (si_pm4_state_changed(sctx, hs))
+	if (si_pm4_state_enabled_and_changed(sctx, hs))
 		cik_prefetch_shader_async(sctx, sctx->queued.named.hs);
-	if (si_pm4_state_changed(sctx, es))
+	if (si_pm4_state_enabled_and_changed(sctx, es))
 		cik_prefetch_shader_async(sctx, sctx->queued.named.es);
-	if (si_pm4_state_changed(sctx, gs))
+	if (si_pm4_state_enabled_and_changed(sctx, gs))
 		cik_prefetch_shader_async(sctx, sctx->queued.named.gs);
-	if (si_pm4_state_changed(sctx, vs))
+	if (si_pm4_state_enabled_and_changed(sctx, vs))
 		cik_prefetch_shader_async(sctx, sctx->queued.named.vs);
 
 	/* Vertex buffer descriptors are uploaded uncached, so prefetch
@@ -471,7 +469,7 @@ void cik_emit_prefetch_L2(struct si_context *sctx)
 					 sctx->vertex_buffers.buffer_offset,
 					 sctx->vertex_elements->desc_list_byte_size);
 	}
-	if (si_pm4_state_changed(sctx, ps))
+	if (si_pm4_state_enabled_and_changed(sctx, ps))
 		cik_prefetch_shader_async(sctx, sctx->queued.named.ps);
 
 	sctx->prefetch_L2 = false;
diff --git a/src/gallium/drivers/radeonsi/si_state.h b/src/gallium/drivers/radeonsi/si_state.h
index 9fbede702a..48e88afe1b 100644
--- a/src/gallium/drivers/radeonsi/si_state.h
+++ b/src/gallium/drivers/radeonsi/si_state.h
@@ -288,6 +288,9 @@ struct si_buffer_resources {
 #define si_pm4_state_changed(sctx, member) \
 	((sctx)->queued.named.member != (sctx)->emitted.named.member)
 
+#define si_pm4_state_enabled_and_changed(sctx, member) \
+	((sctx)->queued.named.member && si_pm4_state_changed(sctx, member))
+
 #define si_pm4_bind_state(sctx, member, value) \
 	do { \
 		(sctx)->queued.named.member = (value); \
diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c b/src/gallium/drivers/radeonsi/si_state_shaders.c
index 0dd64025d4..cb5a23e9c8 100644
--- a/src/gallium/drivers/radeonsi/si_state_shaders.c
+++ b/src/gallium/drivers/radeonsi/si_state_shaders.c
@@ -3297,12 +3297,12 @@ bool si_update_shaders(struct si_context *sctx)
 		}
 	}
 
-	if (si_pm4_state_changed(sctx, ls) ||
-	    si_pm4_state_changed(sctx, hs) ||
-	    si_pm4_state_changed(sctx, es) ||
-	    si_pm4_state_changed(sctx, gs) ||
-	    si_pm4_state_changed(sctx, vs) ||
-	    si_pm4_state_changed(sctx, ps)) {
+	if (si_pm4_state_enabled_and_changed(sctx, ls) ||
+	    si_pm4_state_enabled_and_changed(sctx, hs) ||
+	    si_pm4_state_enabled_and_changed(sctx, es) ||
+	    si_pm4_state_enabled_and_changed(sctx, gs) ||
+	    si_pm4_state_enabled_and_changed(sctx, vs) ||
+	    si_pm4_state_enabled_and_changed(sctx, ps)) {
 		if (!si_update_spi_tmpring_size(sctx))
 			return false;
 	}