diff options
| author | Jouni Högander <jouni.hogander@intel.com> | 2025-02-13 08:48:02 +0200 |
|---|---|---|
| committer | Jouni Högander <jouni.hogander@intel.com> | 2025-02-14 08:37:50 +0200 |
| commit | fa27fa48061afda49f939fcac6c480f0c4c1fcfd (patch) | |
| tree | 006cd6b2d23833e74add1e79a5b4062cfa738ab4 | |
| parent | 801d827d80f6d8a574dee0f87e367167e2b6d80b (diff) | |
drm/i915/psr: Add function for triggering "Frame Change" event
Add new function to trigger "Frame Change" event for ensuring we are waking
up before vblank evasion.
v2: dsb as a first parameter
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250213064804.2077127-12-jouni.hogander@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_psr.c | 22 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_psr.h | 3 |
2 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index c805ff82e700..427a7d1df1f9 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -44,6 +44,7 @@ #include "intel_psr.h" #include "intel_psr_regs.h" #include "intel_snps_phy.h" +#include "intel_vblank.h" #include "skl_universal_plane.h" /** @@ -2289,6 +2290,27 @@ bool intel_psr_needs_block_dc_vblank(const struct intel_crtc_state *crtc_state) return false; } +/** + * intel_psr_trigger_frame_change_event - Trigger "Frame Change" event + * @dsb: DSB context + * @state: the atomic state + * @crtc: the CRTC + * + * Generate PSR "Frame Change" event. + */ +void intel_psr_trigger_frame_change_event(struct intel_dsb *dsb, + struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *crtc_state = + intel_pre_commit_crtc_state(state, crtc); + struct intel_display *display = to_intel_display(crtc); + + if (crtc_state->has_psr) + intel_de_write_dsb(display, dsb, + CURSURFLIVE(display, crtc->pipe), 0); +} + static u32 man_trk_ctl_enable_bit_get(struct intel_display *display) { struct drm_i915_private *dev_priv = to_i915(display->drm); diff --git a/drivers/gpu/drm/i915/display/intel_psr.h b/drivers/gpu/drm/i915/display/intel_psr.h index e6eba6633a92..a43a374cff55 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.h +++ b/drivers/gpu/drm/i915/display/intel_psr.h @@ -64,6 +64,9 @@ bool intel_psr_link_ok(struct intel_dp *intel_dp); void intel_psr_lock(const struct intel_crtc_state *crtc_state); void intel_psr_unlock(const struct intel_crtc_state *crtc_state); +void intel_psr_trigger_frame_change_event(struct intel_dsb *dsb, + struct intel_atomic_state *state, + struct intel_crtc *crtc); void intel_psr_connector_debugfs_add(struct intel_connector *connector); void intel_psr_debugfs_register(struct intel_display *display); |