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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2018-10-04 09:21:19 +0100 |
|---|---|---|
| committer |   Rodrigo Vivi <rodrigo.vivi@intel.com> | 2018-10-17 18:23:43 -0700 |
| commit | 708ea872601e56ef9ea8398c5a11938482bcbb4d (patch) | |
| tree | fe9eb4ee967fc948f4616353fcccaf8f1deeddb3 /drivers/gpu/drm | |
| parent | drm/i915: Use the correct crtc when sanitizing plane mapping (diff) | |
| download | linux-dev-708ea872601e56ef9ea8398c5a11938482bcbb4d.tar.xz linux-dev-708ea872601e56ef9ea8398c5a11938482bcbb4d.zip | |
drm/i915: Only reset seqno if actually idle
Before we can reset the seqno, we have to be sure the engines are idle.
In debugfs/i915_drop_caches_set, we do wait_for_idle but allow ourselves
to be interrupted. We should only proceed to reset the seqno then if we
were not interrupted, and so also avoid overwriting the error status.
References: https://bugs.freedesktop.org/show_bug.cgi?id=108133
Fixes: 6b048706f407 ("drm/i915: Forcibly flush unwanted requests in drop-caches")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181004082119.24970-1-chris@chris-wilson.co.uk
(cherry picked from commit 88a83f3c2d7a87ce7c9c4171dec8e2fb48070288)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index b4744a68cd88..4f3ac0a12889 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -4189,7 +4189,7 @@ i915_drop_caches_set(void *data, u64 val) I915_WAIT_LOCKED, MAX_SCHEDULE_TIMEOUT); - if (val & DROP_RESET_SEQNO) { + if (ret == 0 && val & DROP_RESET_SEQNO) { intel_runtime_pm_get(i915); ret = i915_gem_set_global_seqno(&i915->drm, 1); intel_runtime_pm_put(i915); |