Currently there is no way to disable Panel Replay without disabling PSR. Add new debug bit to be used with i915_edp_psr_debug debugfs interface.
v2: ensure that fastset is performed when the bit changes Signed-off-by: Jouni Högander <[email protected]> --- drivers/gpu/drm/i915/display/intel_display_types.h | 1 + drivers/gpu/drm/i915/display/intel_psr.c | 14 +++++++++++--- 2 files changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index 42400e1e9875..030ef84f5dd4 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -1690,6 +1690,7 @@ struct intel_psr { #define I915_PSR_DEBUG_ENABLE_SEL_FETCH 0x4 #define I915_PSR_DEBUG_IRQ 0x10 #define I915_PSR_DEBUG_SU_REGION_ET_DISABLE 0x20 +#define I915_PSR_DEBUG_PANEL_REPLAY_DISABLE 0x40 u32 debug; bool sink_support; diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 0a5f0481c6ad..885c75c55f9a 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -1496,6 +1496,9 @@ _panel_replay_compute_config(struct intel_dp *intel_dp, if (!CAN_PANEL_REPLAY(intel_dp)) return false; + if (intel_dp->psr.debug & I915_PSR_DEBUG_PANEL_REPLAY_DISABLE) + return false; + if (!intel_dp_is_edp(intel_dp)) return true; @@ -2813,10 +2816,12 @@ int intel_psr_debug_set(struct intel_dp *intel_dp, u64 val) { struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); const u32 mode = val & I915_PSR_DEBUG_MODE_MASK; - u32 old_mode; + const u32 disable_bits = val & I915_PSR_DEBUG_PANEL_REPLAY_DISABLE; + u32 old_mode, old_disable_bits; int ret; - if (val & ~(I915_PSR_DEBUG_IRQ | I915_PSR_DEBUG_MODE_MASK) || + if (val & ~(I915_PSR_DEBUG_IRQ | I915_PSR_DEBUG_PANEL_REPLAY_DISABLE | + I915_PSR_DEBUG_MODE_MASK) || mode > I915_PSR_DEBUG_ENABLE_SEL_FETCH) { drm_dbg_kms(&dev_priv->drm, "Invalid debug mask %llx\n", val); return -EINVAL; @@ -2827,6 +2832,9 @@ int intel_psr_debug_set(struct intel_dp *intel_dp, u64 val) return ret; old_mode = intel_dp->psr.debug & I915_PSR_DEBUG_MODE_MASK; + old_disable_bits = intel_dp->psr.debug & + (I915_PSR_DEBUG_SU_REGION_ET_DISABLE | + I915_PSR_DEBUG_PANEL_REPLAY_DISABLE); intel_dp->psr.debug = val; /* @@ -2838,7 +2846,7 @@ int intel_psr_debug_set(struct intel_dp *intel_dp, u64 val) mutex_unlock(&intel_dp->psr.lock); - if (old_mode != mode) + if (old_mode != mode || old_disable_bits != disable_bits) ret = intel_psr_fastset_force(dev_priv); return ret; -- 2.34.1
