Revision e3818697e1d9140d0b990fecf4429d40c41ca0b5 authored by Chris Wilson on 09 January 2017, 11:19:32 UTC, committed by Jani Nikula on 08 February 2017, 11:10:24 UTC
On a non-llc system, the objects are created with .cache_level =
CACHE_NONE and so the transition to uncached for scanout is a no-op.
However, if the object was never written to, it will still be in the CPU
domain (having been zeroed out by shmemfs). Those cachelines need to be
flushed prior to display.
Reported-and-tested-by: Vito Caputo
Fixes: a6a7cc4b7db6 ("drm/i915: Always flush the dirty CPU cache when pinning the scanout")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: <drm-intel-fixes@lists.freedesktop.org> # v4.10-rc1+
Link: http://patchwork.freedesktop.org/patch/msgid/20170109111932.6342-1-chris@chris-wilson.co.uk
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
(cherry picked from commit 69aeafeae9b30d797c439a30d1a4ccc8dc5b0eb0)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
1 parent 5351fbb
| File | Mode | Size |
|---|---|---|
| partitions | ||
| Kconfig | -rw-r--r-- | 4.9 KB |
| Kconfig.iosched | -rw-r--r-- | 1.6 KB |
| Makefile | -rw-r--r-- | 1.0 KB |
| badblocks.c | -rw-r--r-- | 14.5 KB |
| bio-integrity.c | -rw-r--r-- | 14.3 KB |
| bio.c | -rw-r--r-- | 49.9 KB |
| blk-cgroup.c | -rw-r--r-- | 35.8 KB |
| blk-core.c | -rw-r--r-- | 92.3 KB |
| blk-exec.c | -rw-r--r-- | 3.2 KB |
| blk-flush.c | -rw-r--r-- | 16.4 KB |
| blk-integrity.c | -rw-r--r-- | 12.3 KB |
| blk-ioc.c | -rw-r--r-- | 10.2 KB |
| blk-lib.c | -rw-r--r-- | 9.9 KB |
| blk-map.c | -rw-r--r-- | 5.9 KB |
| blk-merge.c | -rw-r--r-- | 19.4 KB |
| blk-mq-cpumap.c | -rw-r--r-- | 2.3 KB |
| blk-mq-pci.c | -rw-r--r-- | 1.5 KB |
| blk-mq-sysfs.c | -rw-r--r-- | 12.9 KB |
| blk-mq-tag.c | -rw-r--r-- | 11.1 KB |
| blk-mq-tag.h | -rw-r--r-- | 2.2 KB |
| blk-mq.c | -rw-r--r-- | 63.7 KB |
| blk-mq.h | -rw-r--r-- | 2.9 KB |
| blk-settings.c | -rw-r--r-- | 28.2 KB |
| blk-softirq.c | -rw-r--r-- | 4.3 KB |
| blk-stat.c | -rw-r--r-- | 5.9 KB |
| blk-stat.h | -rw-r--r-- | 1.1 KB |
| blk-sysfs.c | -rw-r--r-- | 22.6 KB |
| blk-tag.c | -rw-r--r-- | 10.0 KB |
| blk-throttle.c | -rw-r--r-- | 42.7 KB |
| blk-timeout.c | -rw-r--r-- | 5.9 KB |
| blk-wbt.c | -rw-r--r-- | 17.6 KB |
| blk-wbt.h | -rw-r--r-- | 3.9 KB |
| blk-zoned.c | -rw-r--r-- | 7.6 KB |
| blk.h | -rw-r--r-- | 9.0 KB |
| bounce.c | -rw-r--r-- | 5.8 KB |
| bsg-lib.c | -rw-r--r-- | 6.4 KB |
| bsg.c | -rw-r--r-- | 22.9 KB |
| cfq-iosched.c | -rw-r--r-- | 127.1 KB |
| cmdline-parser.c | -rw-r--r-- | 4.9 KB |
| compat_ioctl.c | -rw-r--r-- | 20.8 KB |
| deadline-iosched.c | -rw-r--r-- | 11.3 KB |
| elevator.c | -rw-r--r-- | 23.7 KB |
| genhd.c | -rw-r--r-- | 45.0 KB |
| ioctl.c | -rw-r--r-- | 15.1 KB |
| ioprio.c | -rw-r--r-- | 5.1 KB |
| noop-iosched.c | -rw-r--r-- | 2.6 KB |
| partition-generic.c | -rw-r--r-- | 16.6 KB |
| scsi_ioctl.c | -rw-r--r-- | 19.5 KB |
| t10-pi.c | -rw-r--r-- | 4.8 KB |
Computing file changes ...
