Mesa (master): ilo: reset SO write offsets for new SO targets
Chia-I Wu
olv at kemper.freedesktop.org
Wed May 1 09:38:33 UTC 2013
Module: Mesa
Branch: master
Commit: d26f70e208a89a03d7dfe5119f046432dafa8c26
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=d26f70e208a89a03d7dfe5119f046432dafa8c26
Author: Chia-I Wu <olvaffe at gmail.com>
Date: Mon Apr 29 07:26:37 2013 +0800
ilo: reset SO write offsets for new SO targets
When the SO targets are changed and no appending is requested, we need to send
SOL_RESET on GEN7+.
---
src/gallium/drivers/ilo/ilo_3d_pipeline.c | 21 +++++++++++++++------
1 files changed, 15 insertions(+), 6 deletions(-)
diff --git a/src/gallium/drivers/ilo/ilo_3d_pipeline.c b/src/gallium/drivers/ilo/ilo_3d_pipeline.c
index a94310f..bbdf180 100644
--- a/src/gallium/drivers/ilo/ilo_3d_pipeline.c
+++ b/src/gallium/drivers/ilo/ilo_3d_pipeline.c
@@ -219,16 +219,25 @@ ilo_3d_pipeline_emit_draw(struct ilo_3d_pipeline *p,
const struct pipe_draw_info *info,
int *prim_generated, int *prim_emitted)
{
+ const bool so_enabled = (ilo->stream_output_targets.num_targets > 0);
bool success;
- /*
- * We keep track of the SVBI in the driver, so that we can restore it when
- * the HW context is invalidated (by another process). The value needs to
- * be reset when the stream output targets are changed.
- */
- if (ilo->dirty & ILO_DIRTY_STREAM_OUTPUT_TARGETS)
+ if (ilo->dirty & ILO_DIRTY_STREAM_OUTPUT_TARGETS &&
+ so_enabled && !ilo->stream_output_targets.append_bitmask) {
+ /*
+ * We keep track of the SVBI in the driver, so that we can restore it
+ * when the HW context is invalidated (by another process). The value
+ * needs to be reset when stream output is enabled and the targets are
+ * changed.
+ */
p->state.so_num_vertices = 0;
+ /* on GEN7+, we need SOL_RESET to reset the SO write offsets */
+ if (p->dev->gen >= ILO_GEN(7))
+ ilo_cp_set_one_off_flags(p->cp, INTEL_EXEC_GEN7_SOL_RESET);
+ }
+
+
while (true) {
struct ilo_cp_jmp_buf jmp;
int err;
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