Chris Wilson 5028851cdf drm/i915: Mark contents as dirty on a write fault ... Since dropping the set-to-gtt-domain in commit a679f58d05 ("drm/i915: Flush pages on acquisition"), we no longer mark the contents as dirty on a write fault. This has the issue of us then not marking the pages as dirty on releasing the buffer, which means the contents are not written out to the swap device (should we ever pick that buffer as a victim). Notably, this is visible in the dumb buffer interface used for cursors. Having updated the cursor contents via mmap, and swapped away, if the shrinker should evict the old cursor, upon next reuse, the cursor would be invisible. E.g. echo 80 > /proc/sys/kernel/sysrq ; echo f > /proc/sysrq-trigger Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111541 Fixes: a679f58d05 ("drm/i915: Flush pages on acquisition") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Matthew Auld <matthew.william.auld@gmail.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: <stable@vger.kernel.org> # v5.2+ Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190920121821.7223-1-chris@chris-wilson.co.uk		2019-09-24 09:58:56 +01:00
..
drm	drm/i915: Mark contents as dirty on a write fault	2019-09-24 09:58:56 +01:00
host1x	drm/tegra: Changes for v5.3-rc1	2019-06-25 12:59:43 +10:00
ipu-v3	drm main pull request for v5.3-rc1 (sans mm changes)	2019-07-15 19:04:27 -07:00
vga	topic/remove-fbcon-notifiers:	2019-06-26 12:26:34 +02:00
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