From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Tue, 23 Sep 2025 17:19:39 +0000 (+0300)
Subject: drm/i915: Introduce intel_calc_enabled_pipes()
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e76f0dd3782a56839bb9e0c0a95464d31bf9790b;p=thirdparty%2Fkernel%2Flinux.git

drm/i915: Introduce intel_calc_enabled_pipes()

Add intel_calc_enabled_pipes() as the counterpart to
intel_calc_active_pipes(). We have some uses where the set
of logically enabled pipes makes more sense than the set of
active pipes.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250923171943.7319-18-ville.syrjala@linux.intel.com
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
---

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index c9bd160c7b32d..bf05ddebeddae 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -5653,6 +5653,23 @@ static int hsw_mode_set_planes_workaround(struct intel_atomic_state *state)
 	return 0;
 }
 
+u8 intel_calc_enabled_pipes(struct intel_atomic_state *state,
+			    u8 enabled_pipes)
+{
+	const struct intel_crtc_state *crtc_state;
+	struct intel_crtc *crtc;
+	int i;
+
+	for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) {
+		if (crtc_state->hw.enable)
+			enabled_pipes |= BIT(crtc->pipe);
+		else
+			enabled_pipes &= ~BIT(crtc->pipe);
+	}
+
+	return enabled_pipes;
+}
+
 u8 intel_calc_active_pipes(struct intel_atomic_state *state,
 			   u8 active_pipes)
 {
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 9a9a44b61f7fd..fc2ef92ccf683 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -394,6 +394,8 @@ enum phy_fia {
 				       i)
 
 int intel_atomic_check(struct drm_device *dev, struct drm_atomic_state *state);
+u8 intel_calc_enabled_pipes(struct intel_atomic_state *state,
+			    u8 enabled_pipes);
 u8 intel_calc_active_pipes(struct intel_atomic_state *state,
 			   u8 active_pipes);
 void intel_link_compute_m_n(u16 bpp, int nlanes,