diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_psr.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_psr.c | 40 |
1 files changed, 18 insertions, 22 deletions
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index 2b0d1ba..108ba1e 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -255,14 +255,14 @@ static void hsw_psr_enable_source(struct intel_dp *intel_dp) struct drm_i915_private *dev_priv = to_i915(dev); uint32_t max_sleep_time = 0x1f; - /* Lately it was identified that depending on panel idle frame count - * calculated at HW can be off by 1. So let's use what came - * from VBT + 1. - * There are also other cases where panel demands at least 4 - * but VBT is not being set. To cover these 2 cases lets use - * at least 5 when VBT isn't set to be on the safest side. + /* + * Let's respect VBT in case VBT asks a higher idle_frame value. + * Let's use 6 as the minimum to cover all known cases including + * the off-by-one issue that HW has in some cases. Also there are + * cases where sink should be able to train + * with the 5 or 6 idle patterns. */ - uint32_t idle_frames = dev_priv->vbt.psr.idle_frames + 1; + uint32_t idle_frames = max(6, dev_priv->vbt.psr.idle_frames); uint32_t val = EDP_PSR_ENABLE; val |= max_sleep_time << EDP_PSR_MAX_SLEEP_TIME_SHIFT; @@ -645,9 +645,8 @@ unlock: mutex_unlock(&dev_priv->psr.lock); } -static void intel_psr_exit(struct drm_device *dev) +static void intel_psr_exit(struct drm_i915_private *dev_priv) { - struct drm_i915_private *dev_priv = to_i915(dev); struct intel_dp *intel_dp = dev_priv->psr.enabled; struct drm_crtc *crtc = dp_to_dig_port(intel_dp)->base.base.crtc; enum pipe pipe = to_intel_crtc(crtc)->pipe; @@ -656,7 +655,7 @@ static void intel_psr_exit(struct drm_device *dev) if (!dev_priv->psr.active) return; - if (HAS_DDI(dev)) { + if (HAS_DDI(dev_priv)) { val = I915_READ(EDP_PSR_CTL); WARN_ON(!(val & EDP_PSR_ENABLE)); @@ -691,7 +690,7 @@ static void intel_psr_exit(struct drm_device *dev) /** * intel_psr_single_frame_update - Single Frame Update - * @dev: DRM device + * @dev_priv: i915 device * @frontbuffer_bits: frontbuffer plane tracking bits * * Some platforms support a single frame update feature that is used to @@ -699,10 +698,9 @@ static void intel_psr_exit(struct drm_device *dev) * So far it is only implemented for Valleyview and Cherryview because * hardware requires this to be done before a page flip. */ -void intel_psr_single_frame_update(struct drm_device *dev, +void intel_psr_single_frame_update(struct drm_i915_private *dev_priv, unsigned frontbuffer_bits) { - struct drm_i915_private *dev_priv = to_i915(dev); struct drm_crtc *crtc; enum pipe pipe; u32 val; @@ -711,7 +709,7 @@ void intel_psr_single_frame_update(struct drm_device *dev, * Single frame update is already supported on BDW+ but it requires * many W/A and it isn't really needed. */ - if (!IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev)) + if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv)) return; mutex_lock(&dev_priv->psr.lock); @@ -737,7 +735,7 @@ void intel_psr_single_frame_update(struct drm_device *dev, /** * intel_psr_invalidate - Invalidade PSR - * @dev: DRM device + * @dev_priv: i915 device * @frontbuffer_bits: frontbuffer plane tracking bits * * Since the hardware frontbuffer tracking has gaps we need to integrate @@ -747,10 +745,9 @@ void intel_psr_single_frame_update(struct drm_device *dev, * * Dirty frontbuffers relevant to PSR are tracked in busy_frontbuffer_bits." */ -void intel_psr_invalidate(struct drm_device *dev, +void intel_psr_invalidate(struct drm_i915_private *dev_priv, unsigned frontbuffer_bits) { - struct drm_i915_private *dev_priv = to_i915(dev); struct drm_crtc *crtc; enum pipe pipe; @@ -767,14 +764,14 @@ void intel_psr_invalidate(struct drm_device *dev, dev_priv->psr.busy_frontbuffer_bits |= frontbuffer_bits; if (frontbuffer_bits) - intel_psr_exit(dev); + intel_psr_exit(dev_priv); mutex_unlock(&dev_priv->psr.lock); } /** * intel_psr_flush - Flush PSR - * @dev: DRM device + * @dev_priv: i915 device * @frontbuffer_bits: frontbuffer plane tracking bits * @origin: which operation caused the flush * @@ -785,10 +782,9 @@ void intel_psr_invalidate(struct drm_device *dev, * * Dirty frontbuffers relevant to PSR are tracked in busy_frontbuffer_bits. */ -void intel_psr_flush(struct drm_device *dev, +void intel_psr_flush(struct drm_i915_private *dev_priv, unsigned frontbuffer_bits, enum fb_op_origin origin) { - struct drm_i915_private *dev_priv = to_i915(dev); struct drm_crtc *crtc; enum pipe pipe; @@ -806,7 +802,7 @@ void intel_psr_flush(struct drm_device *dev, /* By definition flush = invalidate + flush */ if (frontbuffer_bits) - intel_psr_exit(dev); + intel_psr_exit(dev_priv); if (!dev_priv->psr.active && !dev_priv->psr.busy_frontbuffer_bits) if (!work_busy(&dev_priv->psr.work.work)) |
