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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2015-04-22 14:08:17 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2015-04-22 16:03:31 +0100 |
| commit | 4fdd3a714d380afd3d6425aedbbf2ae20180638b (patch) | |
| tree | 99e681b2a664c53f84f3a2e003a986895b958774 /src/sna/gen6_common.h | |
| parent | 83b8528773a0b1e6655fa87c9645a0062cee1359 (diff) | |
sna/gen6+: Discourage use of the BLT with Y-tiling
Somewhere, somehow the first glyph character upload into the Y-tiled
glyph cache is corrupt since
commit 75d87762471e195dddd73056fc6a06e17db1c8b0
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri Apr 17 10:29:28 2015 +0100
sna: Enable blitting with Y-tiled surfaces
I have not spotted whether it is a missing magic bit or a bad GTT path,
but ideally we don't want to switch to BLT along that path anyway (since
we are in the middle of rendering with the other engine).
Reported-by: Andy Furniss <adf.lists@gmail.com>
References: https://bugs.freedesktop.org/show_bug.cgi?id=90138
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'src/sna/gen6_common.h')
| -rw-r--r-- | src/sna/gen6_common.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/sna/gen6_common.h b/src/sna/gen6_common.h index 5da739e2..4bf69b11 100644 --- a/src/sna/gen6_common.h +++ b/src/sna/gen6_common.h @@ -52,6 +52,9 @@ inline static bool can_switch_to_blt(struct sna *sna, if (bo && RQ_IS_BLT(bo->rq)) return true; + if (bo && bo->tiling == I915_TILING_Y) + return false; + if (sna->render_state.gt < 2) return true; |