diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 27 |
2 files changed, 19 insertions, 9 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index d7e24426120d..cfdf4f821ac3 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3852,6 +3852,7 @@ enum { * GEN9 clock gating regs */ #define GEN9_CLKGATE_DIS_0 _MMIO(0x46530) +#define DARBF_GATING_DIS (1 << 27) #define PWM2_GATING_DIS (1 << 14) #define PWM1_GATING_DIS (1 << 13) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index ed6a4a8d9273..23aa7191024e 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -15148,6 +15148,23 @@ get_encoder_power_domains(struct drm_i915_private *dev_priv) } } +static void intel_early_display_was(struct drm_i915_private *dev_priv) +{ + /* Display WA #1185 WaDisableDARBFClkGating:cnl,glk */ + if (IS_CANNONLAKE(dev_priv) || IS_GEMINILAKE(dev_priv)) + I915_WRITE(GEN9_CLKGATE_DIS_0, I915_READ(GEN9_CLKGATE_DIS_0) | + DARBF_GATING_DIS); + + if (IS_HASWELL(dev_priv)) { + /* + * WaRsPkgCStateDisplayPMReq:hsw + * System hang if this isn't done before disabling all planes! + */ + I915_WRITE(CHICKEN_PAR1_1, + I915_READ(CHICKEN_PAR1_1) | FORCE_ARB_IDLE_PLANES); + } +} + /* Scan out the current hw modeset state, * and sanitizes it to the current state */ @@ -15161,15 +15178,7 @@ intel_modeset_setup_hw_state(struct drm_device *dev, struct intel_encoder *encoder; int i; - if (IS_HASWELL(dev_priv)) { - /* - * WaRsPkgCStateDisplayPMReq:hsw - * System hang if this isn't done before disabling all planes! - */ - I915_WRITE(CHICKEN_PAR1_1, - I915_READ(CHICKEN_PAR1_1) | FORCE_ARB_IDLE_PLANES); - } - + intel_early_display_was(dev_priv); intel_modeset_readout_hw_state(dev); /* HW state is read out, now we need to sanitize this mess. */ |