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 |
|---|---|---|
| Makefile | -rw-r--r-- | 1.3 KB |
| callback_srm.S | -rw-r--r-- | 2.9 KB |
| checksum.c | -rw-r--r-- | 4.5 KB |
| clear_page.S | -rw-r--r-- | 451 bytes |
| clear_user.S | -rw-r--r-- | 2.7 KB |
| copy_page.S | -rw-r--r-- | 581 bytes |
| copy_user.S | -rw-r--r-- | 2.3 KB |
| csum_ipv6_magic.S | -rw-r--r-- | 2.9 KB |
| csum_partial_copy.c | -rw-r--r-- | 9.0 KB |
| dbg_current.S | -rw-r--r-- | 402 bytes |
| dbg_stackcheck.S | -rw-r--r-- | 427 bytes |
| dbg_stackkill.S | -rw-r--r-- | 575 bytes |
| dec_and_lock.c | -rw-r--r-- | 874 bytes |
| divide.S | -rw-r--r-- | 4.3 KB |
| ev6-clear_page.S | -rw-r--r-- | 652 bytes |
| ev6-clear_user.S | -rw-r--r-- | 7.3 KB |
| ev6-copy_page.S | -rw-r--r-- | 4.2 KB |
| ev6-copy_user.S | -rw-r--r-- | 7.0 KB |
| ev6-csum_ipv6_magic.S | -rw-r--r-- | 5.1 KB |
| ev6-divide.S | -rw-r--r-- | 6.3 KB |
| ev6-memchr.S | -rw-r--r-- | 5.3 KB |
| ev6-memcpy.S | -rw-r--r-- | 6.2 KB |
| ev6-memset.S | -rw-r--r-- | 16.0 KB |
| ev6-stxcpy.S | -rw-r--r-- | 9.4 KB |
| ev6-stxncpy.S | -rw-r--r-- | 11.2 KB |
| ev67-strcat.S | -rw-r--r-- | 1.6 KB |
| ev67-strchr.S | -rw-r--r-- | 2.8 KB |
| ev67-strlen.S | -rw-r--r-- | 1.3 KB |
| ev67-strncat.S | -rw-r--r-- | 2.4 KB |
| ev67-strrchr.S | -rw-r--r-- | 3.3 KB |
| fls.c | -rw-r--r-- | 1.1 KB |
| fpreg.c | -rw-r--r-- | 6.2 KB |
| memchr.S | -rw-r--r-- | 4.9 KB |
| memcpy.c | -rw-r--r-- | 4.0 KB |
| memmove.S | -rw-r--r-- | 2.6 KB |
| memset.S | -rw-r--r-- | 3.1 KB |
| srm_printk.c | -rw-r--r-- | 656 bytes |
| srm_puts.c | -rw-r--r-- | 370 bytes |
| stacktrace.c | -rw-r--r-- | 2.6 KB |
| strcat.S | -rw-r--r-- | 993 bytes |
| strchr.S | -rw-r--r-- | 1.9 KB |
| strcpy.S | -rw-r--r-- | 453 bytes |
| strlen.S | -rw-r--r-- | 1.2 KB |
| strncat.S | -rw-r--r-- | 1.8 KB |
| strncpy.S | -rw-r--r-- | 1.5 KB |
| strrchr.S | -rw-r--r-- | 2.7 KB |
| stxcpy.S | -rw-r--r-- | 8.7 KB |
| stxncpy.S | -rw-r--r-- | 10.6 KB |
| udelay.c | -rw-r--r-- | 1.1 KB |
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