diff options
| author | Dave Airlie <airlied@redhat.com> | 2019-11-14 11:06:01 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2019-11-14 11:09:06 +1000 |
| commit | dfce90259d74d34cff4cb0c75ecfc0336c09520f (patch) | |
| tree | e13b4f5083043a15d53c096d924d21cc57b45b59 /drivers/gpu/drm/i915/intel_pm.c | |
| parent | 2248a28384fedb84d1d068383bbec113cc4ce0fe (diff) | |
| parent | ea0b163b13ffc52818c079adb00d55e227a6da6f (diff) | |
Backmerge i915 security patches from commit 'ea0b163b13ff' into drm-next
This backmerges the branch that ended up in Linus' tree. It removes
all the changes for the rc6 patches from Linus' tree in favour of
a patch that is based on a large refactor that occured.
Otherwise it all looks good.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 5d2b460d3ee5d..809bff955b5ac 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -107,6 +107,14 @@ static void bxt_init_clock_gating(struct drm_i915_private *dev_priv) */ I915_WRITE(GEN9_CLKGATE_DIS_0, I915_READ(GEN9_CLKGATE_DIS_0) | PWM1_GATING_DIS | PWM2_GATING_DIS); + + /* + * Lower the display internal timeout. + * This is needed to avoid any hard hangs when DSI port PLL + * is off and a MMIO access is attempted by any privilege + * application, using batch buffers or any other means. + */ + I915_WRITE(RM_TIMEOUT, MMIO_TIMEOUT_US(950)); } static void glk_init_clock_gating(struct drm_i915_private *dev_priv) |