Received-SPF: pass (google.com: domain of linux-kernel+bounces-215157-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.48.161 as permitted sender) client-ip=147.75.48.161;
From: =?UTF-8?q?Andr=C3=A9=20Almeida?= <andrealmeid@igalia.com>
To: dri-devel@lists.freedesktop.org,
	amd-gfx@lists.freedesktop.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	nouveau@lists.freedesktop.org,
	intel-gfx@lists.freedesktop.org
Cc: kernel-dev@igalia.com,
	Melissa Wen <mwen@igalia.com>,
	alexander.deucher@amd.com,
	christian.koenig@amd.com,
	Simon Ser <contact@emersion.fr>,
	Pekka Paalanen <ppaalanen@gmail.com>,
	daniel@ffwll.ch,
	Daniel Stone <daniel@fooishbar.org>,
	=?UTF-8?q?=27Marek=20Ol=C5=A1=C3=A1k=27?= <maraeo@gmail.com>,
	Dave Airlie <airlied@gmail.com>,
	ville.syrjala@linux.intel.com,
	Xaver Hugl <xaver.hugl@gmail.com>,
	Joshua Ashton <joshua@froggi.es>,
	=?UTF-8?q?Michel=20D=C3=A4nzer?= <michel.daenzer@mailbox.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	Boris Brezillon <bbrezillon@kernel.org>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	Nicolas Ferre <nicolas.ferre@microchip.com>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Claudiu Beznea <claudiu.beznea@tuxon.dev>,
	Jani Nikula <jani.nikula@linux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	Karol Herbst <kherbst@redhat.com>,
	Lyude Paul <lyude@redhat.com>,
	=?UTF-8?q?Andr=C3=A9=20Almeida?= <andrealmeid@igalia.com>
Subject: [PATCH v6 2/8] drm: Support per-plane async flip configuration
Date: Fri, 14 Jun 2024 12:35:29 -0300
Message-ID: <20240614153535.351689-3-andrealmeid@igalia.com>
In-Reply-To: <20240614153535.351689-1-andrealmeid@igalia.com>
References: <20240614153535.351689-1-andrealmeid@igalia.com>
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Drivers have different capabilities on what plane types they can or
cannot perform async flips. Create a plane::async_flip field so each
driver can choose which planes they allow doing async flips.

Signed-off-by: André Almeida <andrealmeid@igalia.com>
---
 drivers/gpu/drm/drm_atomic_uapi.c | 4 ++--
 include/drm/drm_plane.h           | 5 +++++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c
index 2e1d9391febe..ed1af3455477 100644
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -1079,9 +1079,9 @@ int drm_atomic_set_property(struct drm_atomic_state *state,
 			break;
 		}
 
-		if (async_flip && plane_state->plane->type != DRM_PLANE_TYPE_PRIMARY) {
+		if (async_flip && !plane->async_flip) {
 			drm_dbg_atomic(prop->dev,
-				       "[OBJECT:%d] Only primary planes can be changed during async flip\n",
+				       "[PLANE:%d] does not support async flips\n",
 				       obj->id);
 			ret = -EINVAL;
 			break;
diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
index 9507542121fa..0bebc72af5c3 100644
--- a/include/drm/drm_plane.h
+++ b/include/drm/drm_plane.h
@@ -786,6 +786,11 @@ struct drm_plane {
 	 * @kmsg_panic: Used to register a panic notifier for this plane
 	 */
 	struct kmsg_dumper kmsg_panic;
+
+	/**
+	 * @async_flip: indicates if a plane can do async flips
+	 */
+	bool async_flip;
 };
 
 #define obj_to_plane(x) container_of(x, struct drm_plane, base)
-- 
2.45.2