From nobody Mon Feb 9 12:43:18 2026 Received: from relay5-d.mail.gandi.net (relay5-d.mail.gandi.net [217.70.183.197]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 488051E0E10 for ; Fri, 22 Nov 2024 17:20:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.197 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732296040; cv=none; b=JmfzVSYjyqKGt04DF9pNL06P/vkvsuwDKc6n8v+3RV1AhiA/4qyOXkoVQc25ERu5KzNDWuu4KiArdASeAsA0nO+sJIOIiTuu+ii8he+Th9XrA3HpnYaV7Xv6ttU+CoOCXihNeOlhlv7DCNZfs0tiJ2Mi7eCpBrTTghvqUVv6F40= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732296040; c=relaxed/simple; bh=WmeSrjtBmfwRHkFWb5YcawuoDv1h/e6bqt11lWh1plI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=aZDN8nPgZ/9DTx40iguHw0m7yJIehrLydKt4udTucZzK0wUkwTS2jw0QdRnH+ezyoXgSC1bUu2vs4yv8sbnoq39d80v3Lv4FQxUwiDZoedUcNbPhyzZyK/5cAAWCp2kpVisLr88WY7iS9btvEFb0bApBg1vW+ikR417cU1uvk94= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=R1NabfzX; arc=none smtp.client-ip=217.70.183.197 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="R1NabfzX" Received: by mail.gandi.net (Postfix) with ESMTPSA id D09E21C0009; Fri, 22 Nov 2024 17:20:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1732296036; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=0Ng8HIjJ5WKO/B/KgkTLuuX73lEr5Mvi5DID38i4cXk=; b=R1NabfzXe7vbzmDKMRhyUDjGH/oe0DQQvr3Pd6MTwx/yXFhXMXhIWvsjH/BkuKp7gPn7mK eF1ptn22OT/auilUHmb9ysMzM1hn4gJt5M4P1p5dOOgtq5MsmY924oXDBCeNvp5m2pIbnt 8/tswg0pED4gjG4/PfK+nBaPrKNUoPXVQO6UQG1Op/3W2NtZYXAIMqcRko4yOpSS9GbfIu AwDLIqy9LU5RJ1QALCpXWbARK+LVnTEv/fnblMe/n7A+cpOxb9YeEBMq9sxRBCng9TMW7A WDVKJ/03hxzjF+/wa6SrTxTM5LFjxRqNfQN8o5ZH8rmGHWpQKsaHotmTwysiPQ== From: Louis Chauvet Date: Fri, 22 Nov 2024 18:20:21 +0100 Subject: [PATCH RFC v2 17/18] drm/vkms: Introduce config for connector EDID Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241122-google-remove-crtc-index-from-parameter-v2-17-81540742535a@bootlin.com> References: <20241122-google-remove-crtc-index-from-parameter-v2-0-81540742535a@bootlin.com> In-Reply-To: <20241122-google-remove-crtc-index-from-parameter-v2-0-81540742535a@bootlin.com> To: =?utf-8?q?Ma=C3=ADra_Canal?= , Haneen Mohammed , Simona Vetter , Melissa Wen , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie Cc: arthurgrillo@riseup.net, jeremie.dautheribes@bootlin.com, miquel.raynal@bootlin.com, thomas.petazzoni@bootlin.com, seanpaul@google.com, nicolejadeyee@google.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Louis Chauvet X-Mailer: b4 0.15-dev X-Developer-Signature: v=1; a=openpgp-sha256; l=3463; i=louis.chauvet@bootlin.com; h=from:subject:message-id; bh=WmeSrjtBmfwRHkFWb5YcawuoDv1h/e6bqt11lWh1plI=; b=owEBbQKS/ZANAwAIASCtLsZbECziAcsmYgBnQL1RH2ywbySfqdkYO6lLhI9Urdh663Fqn1Hge k19dC0SJJaJAjMEAAEIAB0WIQRPj7g/vng8MQxQWQQgrS7GWxAs4gUCZ0C9UQAKCRAgrS7GWxAs 4vf+EACKzvaNuROasKjIezksY9fhX0J4Nh/HDvR6m1UiygnBO4A1QVCri4N98YTe3JzdXJkzKg8 Dxryg26XXP1Gz6tRQJ8lQaKqIW1zDYifqA9wuds1UrxfpLJ+p79QCkk6ba93KFdOarBYw1ALNO6 rIl6wwjZfs+kB9fR+47PT1XPhurHjDa8pEKtDxqk4tZzxkUlEq4CLkr8NDVrxQyUGGaxz4ztY+F n/XUk15p++0/cCcBjuAyT0GuT7IOVbSnp7PiKehnd9W3IiR6m0X+3AvdG7OZYuYCOcusR6CaJdW Gt/tKGgRecx3F3X55umztzrjl9ha+ywV9B35fPAvV0Nq+z0qCTcspQ4OCCAeW29Q8lHu92feNCP mhve5HQGPED755XzHahwNGblktE94UAQ/cuJcmViut9i/LdSb2zSXVRlgvxgHwCXFbuOSRbT3Hv 4gz1uDC646AIUXbpenxP1dpdbJpl6fesKdeRgtSOZ+1KHTrEuGNM2Y+s+4RpTN2haHFpB6qYRzX LUjYtLjzHPEpMI8dBYT9nOBga/LjRA4faJUzcvGfVhmzTrMRP6GKHs3w34jC/j6OiRBjEkCN6my n2+A4A2tUmN7jsnggP++JEhLOoDXBV8TykRwcukRfngQhUW6da2HdJ7DahWCFuy2y7i0hDGiqJt DtnrNvG3eKiKMbA== X-Developer-Key: i=louis.chauvet@bootlin.com; a=openpgp; fpr=8B7104AE9A272D6693F527F2EC1883F55E0B40A5 X-GND-Sasl: louis.chauvet@bootlin.com To properly test the EDID reading without using the DRM override, add an option to configure the EDID for a connector. Signed-off-by: Louis Chauvet --- drivers/gpu/drm/vkms/vkms_config.c | 1 + drivers/gpu/drm/vkms/vkms_config.h | 2 ++ drivers/gpu/drm/vkms/vkms_output.c | 37 ++++++++++++++++++++++++++++++++++= --- 3 files changed, 37 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/vkms/vkms_config.c b/drivers/gpu/drm/vkms/vkms= _config.c index ac1a9658c5075c118d59da965ca3392355ccb2b2..1a1234d4f10fa8e5ea6bd649139= ecc10c991f875 100644 --- a/drivers/gpu/drm/vkms/vkms_config.c +++ b/drivers/gpu/drm/vkms/vkms_config.c @@ -199,6 +199,7 @@ struct vkms_config_connector *vkms_config_create_connec= tor(struct vkms_config *v xa_init_flags(&vkms_config_connector->possible_encoders, XA_FLAGS_ALLOC); vkms_config_connector->type =3D DRM_MODE_CONNECTOR_VIRTUAL; vkms_config_connector->status =3D connector_status_unknown; + vkms_config_connector->edid_blob_len =3D 0; =20 return vkms_config_connector; } diff --git a/drivers/gpu/drm/vkms/vkms_config.h b/drivers/gpu/drm/vkms/vkms= _config.h index bba56c9d8aeceac97a4339ef42ab663c5dc54e65..1220b16f6c98d1ebb0ae55d662a= 84fe25e1a6a02 100644 --- a/drivers/gpu/drm/vkms/vkms_config.h +++ b/drivers/gpu/drm/vkms/vkms_config.h @@ -112,6 +112,8 @@ struct vkms_config_connector { struct xarray possible_encoders; int type; enum drm_connector_status status; + char edid_blob[PAGE_SIZE]; + int edid_blob_len; =20 /* Internal usage */ struct drm_connector *connector; diff --git a/drivers/gpu/drm/vkms/vkms_output.c b/drivers/gpu/drm/vkms/vkms= _output.c index fc6a0cdade0739b94820ed4e0924cf355137fe79..56590afb33d75465971d10a2820= 40690840cdbee 100644 --- a/drivers/gpu/drm/vkms/vkms_output.c +++ b/drivers/gpu/drm/vkms/vkms_output.c @@ -31,13 +31,44 @@ static const struct drm_connector_funcs vkms_connector_= funcs =3D { .atomic_destroy_state =3D drm_atomic_helper_connector_destroy_state, }; =20 +static int vkms_connector_read_block(void *context, u8 *buf, unsigned int = block, size_t len) +{ + struct vkms_config_connector *config =3D context; + + if (block * len + len > config->edid_blob_len) + return 1; + memcpy(buf, &config->edid_blob[block * len], len); + return 0; +} + static int vkms_conn_get_modes(struct drm_connector *connector) { + const struct drm_edid *drm_edid =3D NULL; int count; + struct vkms_config_connector *connector_cfg; + struct vkms_device *vkmsdev =3D drm_device_to_vkms_device(connector->dev); + struct vkms_config_connector *context =3D NULL; + + list_for_each_entry(connector_cfg, &vkmsdev->config->connectors, link) { + if (connector_cfg->connector =3D=3D connector) { + context =3D connector_cfg; + break; + } + } + if (context) + drm_edid =3D drm_edid_read_custom(connector, vkms_connector_read_block, = context); + + /* + * Unconditionally update the connector. If the EDID was read + * successfully, fill in the connector information derived from the + * EDID. Otherwise, if the EDID is NULL, clear the connector + * information. + */ + drm_edid_connector_update(connector, drm_edid); + + count =3D drm_edid_connector_add_modes(connector); =20 - /* Use the default modes list from DRM */ - count =3D drm_add_modes_noedid(connector, XRES_MAX, YRES_MAX); - drm_set_preferred_mode(connector, XRES_DEF, YRES_DEF); + drm_edid_free(drm_edid); =20 return count; } --=20 2.47.0