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drm/i915: Extract intel_crtc_arm_vblank_event()

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We'll need to arm the vblank event also from the future
DSB based codepath. Extract the function that does the
whold dance for us.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240611133344.30673-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä
2024-06-11 16:33:34 +03:00
parent 851de367de
commit b493b26b06
2 changed files with 20 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/gpu/drm/i915/display/intel_crtc.c
View File

@@ -560,6 +560,23 @@ static void dbg_vblank_evade(struct intel_crtc *crtc, ktime_t end)
static void dbg_vblank_evade(struct intel_crtc *crtc, ktime_t end) {}
#endif
void intel_crtc_arm_vblank_event(struct intel_crtc_state *crtc_state)
{
struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
unsigned long irqflags;
if (!crtc_state->uapi.event)
return;
drm_WARN_ON(crtc->base.dev, drm_crtc_vblank_get(&crtc->base) != 0);
spin_lock_irqsave(&crtc->base.dev->event_lock, irqflags);
drm_crtc_arm_vblank_event(&crtc->base, crtc_state->uapi.event);
spin_unlock_irqrestore(&crtc->base.dev->event_lock, irqflags);
crtc_state->uapi.event = NULL;
}
/**
* intel_pipe_update_end() - end update of a set of display registers
* @state: the atomic state
@@ -601,16 +618,8 @@ void intel_pipe_update_end(struct intel_atomic_state *state,
drm_vblank_work_schedule(&new_crtc_state->vblank_work,
drm_crtc_accurate_vblank_count(&crtc->base) + 1,
false);
} else if (new_crtc_state->uapi.event) {
drm_WARN_ON(&dev_priv->drm,
drm_crtc_vblank_get(&crtc->base) != 0);
spin_lock(&crtc->base.dev->event_lock);
drm_crtc_arm_vblank_event(&crtc->base,
new_crtc_state->uapi.event);
spin_unlock(&crtc->base.dev->event_lock);
new_crtc_state->uapi.event = NULL;
} else {
intel_crtc_arm_vblank_event(new_crtc_state);
}
/*

1
drivers/gpu/drm/i915/display/intel_crtc.h
View File

@@ -28,6 +28,7 @@ struct intel_crtc_state;
int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode,
int usecs);
void intel_crtc_arm_vblank_event(struct intel_crtc_state *crtc_state);
u32 intel_crtc_max_vblank_count(const struct intel_crtc_state *crtc_state);
int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe);
struct intel_crtc_state *intel_crtc_state_alloc(struct intel_crtc *crtc);