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| author | Imre Deak <imre.deak@intel.com> | 2018-07-09 18:24:27 +0300 |
|---|---|---|
| committer | Jon Bloomfield <jon.bloomfield@intel.com> | 2019-11-05 22:43:07 +0300 |
| commit | 7e34f4e4aad3fd34c02b294a3cf2321adf5b4438 (patch) | |
| tree | 309a2f84fac09bf9e294dbeb4dd49d6c1d71ce48 /drivers/gpu/drm/i915/i915_drv.c | |
| parent | 1d85a299c4db57c55e0229615132c964d17aa765 (diff) | |
| download | linux-7e34f4e4aad3fd34c02b294a3cf2321adf5b4438.tar.xz | |
drm/i915/gen8+: Add RC6 CTX corruption WA
In some circumstances the RC6 context can get corrupted. We can detect
this and take the required action, that is disable RC6 and runtime PM.
The HW recovers from the corrupted state after a system suspend/resume
cycle, so detect the recovery and re-enable RC6 and runtime PM.
v2: rebase (Mika)
v3:
- Move intel_suspend_gt_powersave() to the end of the GEM suspend
sequence.
- Add commit message.
v4:
- Rebased on intel_uncore_forcewake_put(i915->uncore, ...) API
change.
v5: rebased on gem/gt split (Mika)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index bb6f86c7067a..fe4d7cabfdf1 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1850,6 +1850,8 @@ static int i915_drm_suspend_late(struct drm_device *dev, bool hibernation) i915_gem_suspend_late(dev_priv); + i915_rc6_ctx_wa_suspend(dev_priv); + intel_uncore_suspend(&dev_priv->uncore); intel_power_domains_suspend(dev_priv, @@ -2053,6 +2055,8 @@ static int i915_drm_resume_early(struct drm_device *dev) intel_power_domains_resume(dev_priv); + i915_rc6_ctx_wa_resume(dev_priv); + intel_gt_sanitize(&dev_priv->gt, true); enable_rpm_wakeref_asserts(&dev_priv->runtime_pm); |