linux-kernel - [PATCH RFC v5 04/10] drm/atomic: Add pixel source to plane state dump

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Message-ID: <20230728-solid-fill-v5-4-053dbefa909c@quicinc.com>
Date:   Fri, 28 Jul 2023 10:02:13 -0700
From:   Jessica Zhang <quic_jesszhan@...cinc.com>
To:     Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Clark <robdclark@...il.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        "Sean Paul" <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>
CC:     <quic_abhinavk@...cinc.com>, <ppaalanen@...il.com>,
        <contact@...rsion.fr>, <laurent.pinchart@...asonboard.com>,
        <sebastian.wick@...hat.com>, <ville.syrjala@...ux.intel.com>,
        <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <freedreno@...ts.freedesktop.org>,
        <wayland-devel@...ts.freedesktop.org>,
        Jessica Zhang <quic_jesszhan@...cinc.com>
Subject: [PATCH RFC v5 04/10] drm/atomic: Add pixel source to plane state
 dump

Add pixel source to the atomic plane state dump

Signed-off-by: Jessica Zhang <quic_jesszhan@...cinc.com>
---
 drivers/gpu/drm/drm_atomic.c        |  1 +
 drivers/gpu/drm/drm_crtc_internal.h |  2 ++
 drivers/gpu/drm/drm_plane.c         | 12 ++++++++++++
 3 files changed, 15 insertions(+)

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index b4c6ffc438da..c38014abc590 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -713,6 +713,7 @@ static void drm_atomic_plane_print_state(struct drm_printer *p,
 
 	drm_printf(p, "plane[%u]: %s\n", plane->base.id, plane->name);
 	drm_printf(p, "\tcrtc=%s\n", state->crtc ? state->crtc->name : "(null)");
+	drm_printf(p, "\tpixel-source=%s\n", drm_plane_get_pixel_source_name(state->pixel_source));
 	drm_printf(p, "\tfb=%u\n", state->fb ? state->fb->base.id : 0);
 	if (state->fb)
 		drm_framebuffer_print_info(p, 2, state->fb);
diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h
index 501a10edd0e1..75b59ec9f1be 100644
--- a/drivers/gpu/drm/drm_crtc_internal.h
+++ b/drivers/gpu/drm/drm_crtc_internal.h
@@ -38,6 +38,7 @@ enum drm_color_encoding;
 enum drm_color_range;
 enum drm_connector_force;
 enum drm_mode_status;
+enum drm_plane_pixel_source;
 
 struct drm_atomic_state;
 struct drm_bridge;
@@ -267,6 +268,7 @@ int drm_plane_check_pixel_format(struct drm_plane *plane,
 				 u32 format, u64 modifier);
 struct drm_mode_rect *
 __drm_plane_get_damage_clips(const struct drm_plane_state *state);
+const char *drm_plane_get_pixel_source_name(enum drm_plane_pixel_source pixel_source);
 
 /* drm_bridge.c */
 void drm_bridge_detach(struct drm_bridge *bridge);
diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
index f342cf15412b..4188b3491625 100644
--- a/drivers/gpu/drm/drm_plane.c
+++ b/drivers/gpu/drm/drm_plane.c
@@ -1487,6 +1487,18 @@ __drm_plane_get_damage_clips(const struct drm_plane_state *state)
 					state->fb_damage_clips->data : NULL);
 }
 
+const char *drm_plane_get_pixel_source_name(enum drm_plane_pixel_source pixel_source)
+{
+	switch(pixel_source) {
+	case DRM_PLANE_PIXEL_SOURCE_NONE:
+		return "NONE";
+	case DRM_PLANE_PIXEL_SOURCE_FB:
+		return "fb";
+	default:
+		return "";
+	}
+}
+
 /**
  * drm_plane_get_damage_clips - Returns damage clips.
  * @state: Plane state.

-- 
2.41.0