Mesa (master): freedreno: dummy-draw workaround for a320
Rob Clark
robclark at kemper.freedesktop.org
Sat Dec 14 17:35:39 UTC 2013
Module: Mesa
Branch: master
Commit: f9cfe5ce82cf49fec5603db42324df40372ee671
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=f9cfe5ce82cf49fec5603db42324df40372ee671
Author: Rob Clark <robclark at freedesktop.org>
Date: Sat Dec 14 12:13:28 2013 -0500
freedreno: dummy-draw workaround for a320
Fixes gpu lockups in supertuxkart.
Signed-off-by: Rob Clark <robclark at freedesktop.org>
---
src/gallium/drivers/freedreno/a3xx/fd3_emit.c | 3 ++-
src/gallium/drivers/freedreno/freedreno_draw.h | 15 +++++++++++++++
2 files changed, 17 insertions(+), 1 deletions(-)
diff --git a/src/gallium/drivers/freedreno/a3xx/fd3_emit.c b/src/gallium/drivers/freedreno/a3xx/fd3_emit.c
index a8b2df7..f6a1160 100644
--- a/src/gallium/drivers/freedreno/a3xx/fd3_emit.c
+++ b/src/gallium/drivers/freedreno/a3xx/fd3_emit.c
@@ -231,6 +231,7 @@ emit_cache_flush(struct fd_ringbuffer *ring)
OUT_PKT3(ring, CP_EVENT_WRITE, 1);
OUT_RING(ring, CACHE_FLUSH);
+ /* probably only really needed on a320: */
OUT_PKT3(ring, CP_DRAW_INDX, 3);
OUT_RING(ring, 0x00000000);
OUT_RING(ring, DRAW(1, DI_SRC_SEL_AUTO_INDEX,
@@ -523,7 +524,7 @@ fd3_emit_restore(struct fd_context *ctx)
OUT_RING(ring, A3XX_RB_MSAA_CONTROL_DISABLE |
A3XX_RB_MSAA_CONTROL_SAMPLES(MSAA_ONE) |
A3XX_RB_MSAA_CONTROL_SAMPLE_MASK(0xffff));
- OUT_RING(ring, 0x00000000); /* UNKNOWN_20C3 */
+ OUT_RING(ring, 0x00000000); /* RB_ALPHA_REF */
OUT_PKT0(ring, REG_A3XX_GRAS_CL_GB_CLIP_ADJ, 1);
OUT_RING(ring, A3XX_GRAS_CL_GB_CLIP_ADJ_HORZ(0) |
diff --git a/src/gallium/drivers/freedreno/freedreno_draw.h b/src/gallium/drivers/freedreno/freedreno_draw.h
index cf83a36..9ccc246 100644
--- a/src/gallium/drivers/freedreno/freedreno_draw.h
+++ b/src/gallium/drivers/freedreno/freedreno_draw.h
@@ -59,6 +59,21 @@ fd_draw(struct fd_context *ctx, enum pc_di_primtype primtype,
*/
emit_marker(ring, 7);
+ if (ctx->screen->gpu_id == 320) {
+ /* dummy-draw workaround: */
+ OUT_PKT3(ring, CP_DRAW_INDX, 3);
+ OUT_RING(ring, 0x00000000);
+ OUT_RING(ring, DRAW(1, DI_SRC_SEL_AUTO_INDEX,
+ INDEX_SIZE_IGN, IGNORE_VISIBILITY));
+ OUT_RING(ring, 0); /* NumIndices */
+
+ /* ugg, hard-code register offset to avoid pulling in the
+ * a3xx register headers into something #included from a2xx
+ */
+ OUT_PKT0(ring, 0x2206, 1); /* A3XX_HLSQ_CONST_VSPRESV_RANGE_REG */
+ OUT_RING(ring, 0);
+ }
+
OUT_PKT3(ring, CP_DRAW_INDX, idx_bo ? 5 : 3);
OUT_RING(ring, 0x00000000); /* viz query info. */
OUT_RING(ring, DRAW(primtype, src_sel,
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