[PATCH 08/14] drm/i915: Drop force_check_qgv

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Remove the force_check_qgv flag and just fill the pipe_sagv_reject
bitmask properly during readout. This will cause the initial commit
to re-enable SAGV if possible.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_bw.c | 12 ++++++------
 drivers/gpu/drm/i915/display/intel_bw.h |  6 ------
 2 files changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c
index bbb040be0502..e11fd94e9e29 100644
--- a/drivers/gpu/drm/i915/display/intel_bw.c
+++ b/drivers/gpu/drm/i915/display/intel_bw.c
@@ -1399,9 +1399,8 @@ int intel_bw_atomic_check(struct intel_atomic_state *state)
 	new_bw_state = intel_atomic_get_new_bw_state(state);
 
 	if (new_bw_state &&
-	    (intel_can_enable_sagv(i915, old_bw_state) !=
-	     intel_can_enable_sagv(i915, new_bw_state) ||
-	     new_bw_state->force_check_qgv))
+	    intel_can_enable_sagv(i915, old_bw_state) !=
+	    intel_can_enable_sagv(i915, new_bw_state))
 		changed = true;
 
 	/*
@@ -1415,8 +1414,6 @@ int intel_bw_atomic_check(struct intel_atomic_state *state)
 	if (ret)
 		return ret;
 
-	new_bw_state->force_check_qgv = false;
-
 	return 0;
 }
 
@@ -1430,7 +1427,6 @@ static void intel_bw_crtc_update(struct intel_bw_state *bw_state,
 		intel_bw_crtc_data_rate(crtc_state);
 	bw_state->num_active_planes[crtc->pipe] =
 		intel_bw_crtc_num_active_planes(crtc_state);
-	bw_state->force_check_qgv = true;
 
 	drm_dbg_kms(&i915->drm, "pipe %c data rate %u num active planes %u\n",
 		    pipe_name(crtc->pipe),
@@ -1448,6 +1444,7 @@ void intel_bw_update_hw_state(struct intel_display *display)
 		return;
 
 	bw_state->active_pipes = 0;
+	bw_state->pipe_sagv_reject = 0;
 
 	for_each_intel_crtc(display->drm, crtc) {
 		const struct intel_crtc_state *crtc_state =
@@ -1461,6 +1458,9 @@ void intel_bw_update_hw_state(struct intel_display *display)
 			intel_bw_crtc_update(bw_state, crtc_state);
 
 		skl_crtc_calc_dbuf_bw(&bw_state->dbuf_bw[pipe], crtc_state);
+
+		/* initially SAGV has been forced off */
+		bw_state->pipe_sagv_reject |= BIT(pipe);
 	}
 }
 
diff --git a/drivers/gpu/drm/i915/display/intel_bw.h b/drivers/gpu/drm/i915/display/intel_bw.h
index e977c3586dc3..d3f92951b057 100644
--- a/drivers/gpu/drm/i915/display/intel_bw.h
+++ b/drivers/gpu/drm/i915/display/intel_bw.h
@@ -49,12 +49,6 @@ struct intel_bw_state {
 	 */
 	u16 qgv_points_mask;
 
-	/*
-	 * Flag to force the QGV comparison in atomic check right after the
-	 * hw state readout
-	 */
-	bool force_check_qgv;
-
 	unsigned int data_rate[I915_MAX_PIPES];
 	u8 num_active_planes[I915_MAX_PIPES];
 };
-- 
2.45.3