kernel/linux.git/Documentation/gpu/vkms.rst, branch linux-7.1.y

drm/vkms: Update testing with IGT IGT_DEVICE

2025-11-04T10:51:15+00:00

VKMS is no longer in the platform bus, instead, it is in the faux bus. In addition, when present, IGT picks hardware drivers instead of virtual drivers, like VKMS or vgem, if they are not forced. Update the documentation to use IGT_FORCE_DRIVER instead of IGT_DEVICE. Signed-off-by: José Expósito Reviewed-by: Louis Chauvet Link: https://lore.kernel.org/r/20251024110014.4614-2-jose.exposito89@gmail.com Signed-off-by: Louis Chauvet

drm/vkms: Fix run-tests.sh script name

2025-11-04T10:51:15+00:00

The script is "run-tests.sh", no "run-test.sh". Signed-off-by: José Expósito Reviewed-by: Louis Chauvet Link: https://lore.kernel.org/r/20251024110014.4614-1-jose.exposito89@gmail.com Signed-off-by: Louis Chauvet

drm/vkms: Allow to configure connector status via configfs

2025-10-22T11:19:26+00:00

When a connector is created, add a `status` file to allow to update the connector status to: - 1 connector_status_connected - 2 connector_status_disconnected - 3 connector_status_unknown If the device is enabled, updating the status hot-plug or unplugs the connector. Tested-by: Mark Yacoub Reviewed-by: Louis Chauvet Reviewed-by: Harry Wentland Reviewed-by: Luca Ceresoli Signed-off-by: José Expósito Link: https://lore.kernel.org/r/20251016175618.10051-17-jose.exposito89@gmail.com Signed-off-by: Luca Ceresoli

drm/vkms: Remove completed task from the TODO list

2025-10-22T11:19:26+00:00

Remove the configfs related TODO items from the "Runtime Configuration" section. Tested-by: Mark Yacoub Reviewed-by: Louis Chauvet Reviewed-by: Harry Wentland Reviewed-by: Luca Ceresoli Signed-off-by: José Expósito Link: https://lore.kernel.org/r/20251016175618.10051-14-jose.exposito89@gmail.com Signed-off-by: Luca Ceresoli

drm/vkms: Allow to attach connectors and encoders via configfs

2025-10-22T11:19:26+00:00

Create a default subgroup at /config/vkms/connectors/connector/possible_encoders that will contain symbolic links to the possible encoders for the connector. Tested-by: Mark Yacoub Reviewed-by: Louis Chauvet Reviewed-by: Harry Wentland Reviewed-by: Luca Ceresoli Signed-off-by: Louis Chauvet Co-developed-by: José Expósito Signed-off-by: José Expósito Link: https://lore.kernel.org/r/20251016175618.10051-12-jose.exposito89@gmail.com Signed-off-by: Luca Ceresoli

drm/vkms: Allow to configure multiple connectors via configfs

2025-10-22T11:19:25+00:00

Create a default subgroup at /config/vkms/connectors to allow to create as many connectors as required. Tested-by: Mark Yacoub Reviewed-by: Louis Chauvet Reviewed-by: Harry Wentland Reviewed-by: Luca Ceresoli Signed-off-by: Louis Chauvet Co-developed-by: José Expósito Signed-off-by: José Expósito Link: https://lore.kernel.org/r/20251016175618.10051-11-jose.exposito89@gmail.com Signed-off-by: Luca Ceresoli

drm/vkms: Allow to attach encoders and CRTCs via configfs

2025-10-22T11:19:25+00:00

Create a default subgroup at /config/vkms/encoders/encoder/possible_crtcs that will contain symbolic links to the possible CRTCs for the encoder. Tested-by: Mark Yacoub Reviewed-by: Louis Chauvet Reviewed-by: Harry Wentland Reviewed-by: Luca Ceresoli Signed-off-by: Louis Chauvet Co-developed-by: José Expósito Signed-off-by: José Expósito Link: https://lore.kernel.org/r/20251016175618.10051-10-jose.exposito89@gmail.com Signed-off-by: Luca Ceresoli

drm/vkms: Allow to configure multiple encoders via configfs

2025-10-22T11:19:25+00:00

Create a default subgroup at /config/vkms/encoders to allow to create as many encoders as required. Tested-by: Mark Yacoub Reviewed-by: Louis Chauvet Reviewed-by: Harry Wentland Reviewed-by: Luca Ceresoli Signed-off-by: Louis Chauvet Co-developed-by: José Expósito Signed-off-by: José Expósito Link: https://lore.kernel.org/r/20251016175618.10051-9-jose.exposito89@gmail.com Signed-off-by: Luca Ceresoli

drm/vkms: Allow to attach planes and CRTCs via configfs

2025-10-22T11:19:25+00:00

Create a default subgroup at /config/vkms/planes/plane/possible_crtcs that will contain symbolic links to the possible CRTCs for the plane. Tested-by: Mark Yacoub Reviewed-by: Louis Chauvet Reviewed-by: Harry Wentland Reviewed-by: Luca Ceresoli Signed-off-by: Louis Chauvet Co-developed-by: José Expósito Signed-off-by: José Expósito Link: https://lore.kernel.org/r/20251016175618.10051-8-jose.exposito89@gmail.com Signed-off-by: Luca Ceresoli

drm/vkms: Allow to configure CRTC writeback support via configfs

2025-10-22T11:19:25+00:00

When a CRTC is created, add a `writeback` file to allow to enable or disable writeback connector support Tested-by: Mark Yacoub Reviewed-by: Louis Chauvet Reviewed-by: Harry Wentland Reviewed-by: Luca Ceresoli Signed-off-by: Louis Chauvet Co-developed-by: José Expósito Signed-off-by: José Expósito Link: https://lore.kernel.org/r/20251016175618.10051-7-jose.exposito89@gmail.com Signed-off-by: Luca Ceresoli