[PATCH 1/4] drm/i915/display: Move dc3co_exitline variable to struct intel_psr

[Gwan-gyeong Mun]

dc3co_exitline is indirectly called by intel_psr_compute_config().
And it will not be changed until the next calling of
intel_psr_compute_config(). So in order to use dc3co_exitline without
intel_crtc_state on other psr internal function, it moves dc3co_exitline
variable to struct intel_psr.
And it removes a dc3co_enabled variable from struct intel_psr.

Cc: José Roberto de Souza <jose.souza at intel.com>
Cc: Anshuman Gupta <anshuman.gupta at intel.com>
Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun at intel.com>
---
 drivers/gpu/drm/i915/display/intel_display_types.h |  3 +--
 drivers/gpu/drm/i915/display/intel_psr.c           | 11 +++++------
 2 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 1a76e1d9de7a..f69bd1caebbf 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1002,7 +1002,6 @@ struct intel_crtc_state {
 	bool has_psr;
 	bool has_psr2;
 	bool enable_psr2_sel_fetch;
-	u32 dc3co_exitline;
 
 	/*
 	 * Frequence the dpll for the port should run at. Differs from the
@@ -1453,7 +1452,7 @@ struct intel_psr {
 	bool sink_not_reliable;
 	bool irq_aux_error;
 	u16 su_x_granularity;
-	bool dc3co_enabled;
+	u32 dc3co_exitline;
 	u32 dc3co_exit_delay;
 	struct delayed_work dc3co_work;
 	struct drm_dp_vsc_sdp vsc;
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index cd434285e3b7..976826653143 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -637,7 +637,7 @@ static void tgl_dc3co_disable_work(struct work_struct *work)
 
 static void tgl_disallow_dc3co_on_psr2_exit(struct intel_dp *intel_dp)
 {
-	if (!intel_dp->psr.dc3co_enabled)
+	if (!intel_dp->psr.dc3co_exitline)
 		return;
 
 	cancel_delayed_work(&intel_dp->psr.dc3co_work);
@@ -679,7 +679,7 @@ tgl_dc3co_exitline_compute_config(struct intel_dp *intel_dp,
 	if (drm_WARN_ON(&dev_priv->drm, exit_scanlines > crtc_vdisplay))
 		return;
 
-	crtc_state->dc3co_exitline = crtc_vdisplay - exit_scanlines;
+	intel_dp->psr.dc3co_exitline = crtc_vdisplay - exit_scanlines;
 }
 
 static bool intel_psr2_sel_fetch_config_valid(struct intel_dp *intel_dp,
@@ -938,7 +938,7 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp,
 
 	psr_irq_control(intel_dp);
 
-	if (crtc_state->dc3co_exitline) {
+	if (intel_dp->psr.dc3co_exitline) {
 		u32 val;
 
 		/*
@@ -947,7 +947,7 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp,
 		 */
 		val = intel_de_read(dev_priv, EXITLINE(cpu_transcoder));
 		val &= ~EXITLINE_MASK;
-		val |= crtc_state->dc3co_exitline << EXITLINE_SHIFT;
+		val |= intel_dp->psr.dc3co_exitline << EXITLINE_SHIFT;
 		val |= EXITLINE_ENABLE;
 		intel_de_write(dev_priv, EXITLINE(cpu_transcoder), val);
 	}
@@ -972,7 +972,6 @@ static void intel_psr_enable_locked(struct intel_dp *intel_dp,
 	intel_dp->psr.psr2_enabled = crtc_state->has_psr2;
 	intel_dp->psr.busy_frontbuffer_bits = 0;
 	intel_dp->psr.pipe = to_intel_crtc(crtc_state->uapi.crtc)->pipe;
-	intel_dp->psr.dc3co_enabled = !!crtc_state->dc3co_exitline;
 	intel_dp->psr.transcoder = crtc_state->cpu_transcoder;
 	/* DC5/DC6 requires at least 6 idle frames */
 	val = usecs_to_jiffies(intel_get_frame_time_us(crtc_state) * 6);
@@ -1761,7 +1760,7 @@ tgl_dc3co_flush(struct intel_dp *intel_dp, unsigned int frontbuffer_bits,
 {
 	mutex_lock(&intel_dp->psr.lock);
 
-	if (!intel_dp->psr.dc3co_enabled)
+	if (!intel_dp->psr.dc3co_exitline)
 		goto unlock;
 
 	if (!intel_dp->psr.psr2_enabled || !intel_dp->psr.active)
-- 
2.30.1