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
tz1090_defconfig
# CONFIG_LOCALVERSION_AUTO is not set
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_KALLSYMS_ALL=y
# CONFIG_ELF_CORE is not set
CONFIG_SLAB=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_PARTITION_ADVANCED=y
# CONFIG_MSDOS_PARTITION is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
CONFIG_FLATMEM_MANUAL=y
CONFIG_SOC_TZ1090=y
CONFIG_METAG_HALT_ON_PANIC=y
# CONFIG_METAG_FPU is not set
CONFIG_METAG_DA=y
CONFIG_HZ_100=y
CONFIG_DEVTMPFS=y
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=1
CONFIG_BLK_DEV_RAM_SIZE=16384
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_DA_TTY=y
CONFIG_DA_CONSOLE=y
# CONFIG_DEVKMEM is not set
# CONFIG_HW_RANDOM is not set
CONFIG_GPIOLIB=y
# CONFIG_HWMON is not set
# CONFIG_USB_SUPPORT is not set
# CONFIG_DNOTIFY is not set
CONFIG_TMPFS=y
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_SCHED_DEBUG is not set
CONFIG_DEBUG_INFO=y
Computing file changes ...
