Mesa (master): i965: Add perf debug for depth/stencil alignment workaround.
Eric Anholt
anholt at kemper.freedesktop.org
Sun Dec 23 00:05:39 UTC 2012
Module: Mesa
Branch: master
Commit: 0d6a722ec4df73595d4159e5b35c6fd61f847a6c
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=0d6a722ec4df73595d4159e5b35c6fd61f847a6c
Author: Eric Anholt <eric at anholt.net>
Date: Tue Dec 18 13:45:14 2012 -0800
i965: Add perf debug for depth/stencil alignment workaround.
Fixing these rendering bugs has been implicated in performance
regressions (which may be unfixable), but at least knowing that it's
happening should help diagnose those regressions.
Reviewed-by: Jordan Justen <jordan.l.justen at intel.com>
---
src/mesa/drivers/dri/i965/brw_misc_state.c | 16 ++++++++++++++++
1 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_misc_state.c b/src/mesa/drivers/dri/i965/brw_misc_state.c
index b0a1918..d7724e3 100644
--- a/src/mesa/drivers/dri/i965/brw_misc_state.c
+++ b/src/mesa/drivers/dri/i965/brw_misc_state.c
@@ -370,6 +370,10 @@ brw_workaround_depthstencil_alignment(struct brw_context *brw)
}
if (rebase_depth) {
+ perf_debug("HW workaround: blitting depth level %d to a temporary "
+ "to fix alignment (depth tile offset %d,%d)\n",
+ depth_irb->mt_level, tile_x, tile_y);
+
intel_renderbuffer_move_to_temp(intel, depth_irb);
/* In the case of stencil_irb being the same packed depth/stencil
* texture but not the same rb, make it point at our rebased mt, too.
@@ -427,6 +431,10 @@ brw_workaround_depthstencil_alignment(struct brw_context *brw)
}
if (rebase_stencil) {
+ perf_debug("HW workaround: blitting stencil level %d to a temporary "
+ "to fix alignment (stencil tile offset %d,%d)\n",
+ stencil_irb->mt_level, stencil_tile_x, stencil_tile_y);
+
intel_renderbuffer_move_to_temp(intel, stencil_irb);
stencil_mt = get_stencil_miptree(stencil_irb);
@@ -443,6 +451,14 @@ brw_workaround_depthstencil_alignment(struct brw_context *brw)
} else if (depth_irb && !rebase_depth) {
if (tile_x != stencil_tile_x ||
tile_y != stencil_tile_y) {
+ perf_debug("HW workaround: blitting depth level %d to a temporary "
+ "to match stencil level %d alignment (depth tile offset "
+ "%d,%d, stencil offset %d,%d)\n",
+ depth_irb->mt_level,
+ stencil_irb->mt_level,
+ tile_x, tile_y,
+ stencil_tile_x, stencil_tile_y);
+
intel_renderbuffer_move_to_temp(intel, depth_irb);
tile_x = depth_irb->draw_x & tile_mask_x;
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