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authorRob Clark <[email protected]>2014-07-20 11:26:56 -0400
committerRob Clark <[email protected]>2014-07-23 09:03:09 -0400
commit3a7da7f5ecc476df64a84a2bdb19b0ba8f129cc6 (patch)
tree1a53c9161d763213bae542bdaadd32b0e545fa2b /src/gallium/drivers
parent9f6dfd16e343ce8ca2095c86a26ba6264bc25cdb (diff)
freedreno/a3xx: add back a few stalls
Technically we should not need these. CP_LOAD_STATE can be pipelined. But removing them broke a few piglit tests, like fbo-depth- GL_DEPTH_COMPONENT24-readpixels. I expect these are just masking a problem elsewhere, or perhaps they are only needed under some more specific circumstances. But until that is understood properly, give back a bit of the perf boost we got from c63450e8. Signed-off-by: Rob Clark <[email protected]>
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r--src/gallium/drivers/freedreno/a3xx/fd3_emit.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/gallium/drivers/freedreno/a3xx/fd3_emit.c b/src/gallium/drivers/freedreno/a3xx/fd3_emit.c
index f77c7226b5b..6bbd9bf6330 100644
--- a/src/gallium/drivers/freedreno/a3xx/fd3_emit.c
+++ b/src/gallium/drivers/freedreno/a3xx/fd3_emit.c
@@ -486,9 +486,15 @@ fd3_emit_state(struct fd_context *ctx, struct fd_ringbuffer *ring,
fd3_program_emit(ring, prog, key);
}
+ /* TODO we should not need this or fd_wfi() before emit_constants():
+ */
+ OUT_PKT3(ring, CP_EVENT_WRITE, 1);
+ OUT_RING(ring, HLSQ_FLUSH);
+
if ((dirty & (FD_DIRTY_PROG | FD_DIRTY_CONSTBUF)) &&
/* evil hack to deal sanely with clear path: */
(prog == &ctx->prog)) {
+ fd_wfi(ctx, ring);
emit_constants(ring, SB_VERT_SHADER,
&ctx->constbuf[PIPE_SHADER_VERTEX],
(prog->dirty & FD_SHADER_DIRTY_VP) ? vp : NULL);
@@ -525,6 +531,8 @@ fd3_emit_state(struct fd_context *ctx, struct fd_ringbuffer *ring,
A3XX_RB_BLEND_ALPHA_FLOAT(bcolor->color[3]));
}
+ if (dirty & (FD_DIRTY_VERTTEX | FD_DIRTY_FRAGTEX))
+ fd_wfi(ctx, ring);
if (dirty & FD_DIRTY_VERTTEX) {
if (vp->has_samp)