From a9031bf9b55602d93cccef6c926e2179c23205b4 Mon Sep 17 00:00:00 2001 From: Andrii Simiklit Date: Wed, 12 Sep 2018 19:05:44 +0300 Subject: [PATCH] i965/batch: avoid reverting batch buffer if saved state is an empty There's no point reverting to the last saved point if that save point is the empty batch, we will just repeat ourselves. CC: Chris Wilson Fixes: 3faf56ffbdeb "intel: Add an interface for saving/restoring the batchbuffer state." Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107626 Reviewed-by: Jordan Justen Reviewed-by: Kenneth Graunke --- src/mesa/drivers/dri/i965/brw_compute.c | 3 ++- src/mesa/drivers/dri/i965/brw_draw.c | 3 ++- src/mesa/drivers/dri/i965/genX_blorp_exec.c | 3 ++- src/mesa/drivers/dri/i965/intel_batchbuffer.c | 7 +++++++ src/mesa/drivers/dri/i965/intel_batchbuffer.h | 1 + 5 files changed, 14 insertions(+), 3 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_compute.c b/src/mesa/drivers/dri/i965/brw_compute.c index de08fc3..5c8e3a5 100644 --- a/src/mesa/drivers/dri/i965/brw_compute.c +++ b/src/mesa/drivers/dri/i965/brw_compute.c @@ -167,7 +167,7 @@ static void brw_dispatch_compute_common(struct gl_context *ctx) { struct brw_context *brw = brw_context(ctx); - bool fail_next = false; + bool fail_next; if (!_mesa_check_conditional_render(ctx)) return; @@ -185,6 +185,7 @@ brw_dispatch_compute_common(struct gl_context *ctx) intel_batchbuffer_require_space(brw, 600); brw_require_statebuffer_space(brw, 2500); intel_batchbuffer_save_state(brw); + fail_next = intel_batchbuffer_saved_state_is_empty(brw); retry: brw->batch.no_wrap = true; diff --git a/src/mesa/drivers/dri/i965/brw_draw.c b/src/mesa/drivers/dri/i965/brw_draw.c index 8536c04..19ee396 100644 --- a/src/mesa/drivers/dri/i965/brw_draw.c +++ b/src/mesa/drivers/dri/i965/brw_draw.c @@ -885,7 +885,7 @@ brw_draw_single_prim(struct gl_context *ctx, { struct brw_context *brw = brw_context(ctx); const struct gen_device_info *devinfo = &brw->screen->devinfo; - bool fail_next = false; + bool fail_next; /* Flag BRW_NEW_DRAW_CALL on every draw. This allows us to have * atoms that happen on every draw call. @@ -898,6 +898,7 @@ brw_draw_single_prim(struct gl_context *ctx, intel_batchbuffer_require_space(brw, 1500); brw_require_statebuffer_space(brw, 2400); intel_batchbuffer_save_state(brw); + fail_next = intel_batchbuffer_saved_state_is_empty(brw); if (brw->num_instances != prim->num_instances || brw->basevertex != prim->basevertex || diff --git a/src/mesa/drivers/dri/i965/genX_blorp_exec.c b/src/mesa/drivers/dri/i965/genX_blorp_exec.c index 34bfcad..fd9ce93 100644 --- a/src/mesa/drivers/dri/i965/genX_blorp_exec.c +++ b/src/mesa/drivers/dri/i965/genX_blorp_exec.c @@ -268,7 +268,7 @@ genX(blorp_exec)(struct blorp_batch *batch, assert(batch->blorp->driver_ctx == batch->driver_batch); struct brw_context *brw = batch->driver_batch; struct gl_context *ctx = &brw->ctx; - bool check_aperture_failed_once = false; + bool check_aperture_failed_once; #if GEN_GEN >= 11 /* The PIPE_CONTROL command description says: @@ -309,6 +309,7 @@ retry: intel_batchbuffer_require_space(brw, 1400); brw_require_statebuffer_space(brw, 600); intel_batchbuffer_save_state(brw); + check_aperture_failed_once = intel_batchbuffer_saved_state_is_empty(brw); brw->batch.no_wrap = true; #if GEN_GEN == 6 diff --git a/src/mesa/drivers/dri/i965/intel_batchbuffer.c b/src/mesa/drivers/dri/i965/intel_batchbuffer.c index 4363b14..2dc6eb8 100644 --- a/src/mesa/drivers/dri/i965/intel_batchbuffer.c +++ b/src/mesa/drivers/dri/i965/intel_batchbuffer.c @@ -299,6 +299,13 @@ intel_batchbuffer_save_state(struct brw_context *brw) brw->batch.saved.exec_count = brw->batch.exec_count; } +bool +intel_batchbuffer_saved_state_is_empty(struct brw_context *brw) +{ + struct intel_batchbuffer *batch = &brw->batch; + return (batch->saved.map_next == batch->batch.map); +} + void intel_batchbuffer_reset_to_saved(struct brw_context *brw) { diff --git a/src/mesa/drivers/dri/i965/intel_batchbuffer.h b/src/mesa/drivers/dri/i965/intel_batchbuffer.h index 0632142..91720da 100644 --- a/src/mesa/drivers/dri/i965/intel_batchbuffer.h +++ b/src/mesa/drivers/dri/i965/intel_batchbuffer.h @@ -24,6 +24,7 @@ struct intel_batchbuffer; void intel_batchbuffer_init(struct brw_context *brw); void intel_batchbuffer_free(struct intel_batchbuffer *batch); void intel_batchbuffer_save_state(struct brw_context *brw); +bool intel_batchbuffer_saved_state_is_empty(struct brw_context *brw); void intel_batchbuffer_reset_to_saved(struct brw_context *brw); void intel_batchbuffer_require_space(struct brw_context *brw, GLuint sz); int _intel_batchbuffer_flush_fence(struct brw_context *brw, -- 2.7.4