From 854502fa0a38dc77c9e855c95d239a8fd50a9b13 Mon Sep 17 00:00:00 2001 From: Rodrigo Siqueira Date: Wed, 16 May 2018 20:56:21 -0300 Subject: [PATCH] drm/vkms: Add basic CRTC initialization This commit adds the essential infrastructure for around CRTCs which is composed of: a new data struct for output data information, a function for creating planes, and a simple encoder attached to the connector. Finally, due to the introduction of a new initialization function, connectors were moved from vkms_drv.c to vkms_display.c. Signed-off-by: Rodrigo Siqueira Reviewed-by: Haneen Mohammed Signed-off-by: Daniel Vetter Signed-off-by: Gustavo Padovan Link: https://patchwork.freedesktop.org/patch/msgid/b6e27bc6a54f5cb340658fa5969f7b48fbfbf1b7.1526514457.git.rodrigosiqueiramelo@gmail.com --- drivers/gpu/drm/vkms/Makefile | 2 +- drivers/gpu/drm/vkms/vkms_crtc.c | 35 ++++++++++++ drivers/gpu/drm/vkms/vkms_drv.c | 60 ++++++-------------- drivers/gpu/drm/vkms/vkms_drv.h | 24 +++++++- drivers/gpu/drm/vkms/vkms_output.c | 91 ++++++++++++++++++++++++++++++ drivers/gpu/drm/vkms/vkms_plane.c | 46 +++++++++++++++ 6 files changed, 211 insertions(+), 47 deletions(-) create mode 100644 drivers/gpu/drm/vkms/vkms_crtc.c create mode 100644 drivers/gpu/drm/vkms/vkms_output.c create mode 100644 drivers/gpu/drm/vkms/vkms_plane.c diff --git a/drivers/gpu/drm/vkms/Makefile b/drivers/gpu/drm/vkms/Makefile index 2aef948d3a34..3f774a6a9c58 100644 --- a/drivers/gpu/drm/vkms/Makefile +++ b/drivers/gpu/drm/vkms/Makefile @@ -1,3 +1,3 @@ -vkms-y := vkms_drv.o +vkms-y := vkms_drv.o vkms_plane.o vkms_output.o vkms_crtc.o obj-$(CONFIG_DRM_VKMS) += vkms.o diff --git a/drivers/gpu/drm/vkms/vkms_crtc.c b/drivers/gpu/drm/vkms/vkms_crtc.c new file mode 100644 index 000000000000..bf76cd39ece7 --- /dev/null +++ b/drivers/gpu/drm/vkms/vkms_crtc.c @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include "vkms_drv.h" +#include +#include + +static const struct drm_crtc_funcs vkms_crtc_funcs = { + .set_config = drm_atomic_helper_set_config, + .destroy = drm_crtc_cleanup, + .page_flip = drm_atomic_helper_page_flip, + .reset = drm_atomic_helper_crtc_reset, + .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, +}; + +int vkms_crtc_init(struct drm_device *dev, struct drm_crtc *crtc, + struct drm_plane *primary, struct drm_plane *cursor) +{ + int ret; + + ret = drm_crtc_init_with_planes(dev, crtc, primary, cursor, + &vkms_crtc_funcs, NULL); + if (ret) { + DRM_ERROR("Failed to init CRTC\n"); + return ret; + } + + return ret; +} diff --git a/drivers/gpu/drm/vkms/vkms_drv.c b/drivers/gpu/drm/vkms/vkms_drv.c index aec3f180f96d..070613e32934 100644 --- a/drivers/gpu/drm/vkms/vkms_drv.c +++ b/drivers/gpu/drm/vkms/vkms_drv.c @@ -6,7 +6,6 @@ */ #include -#include #include #include #include @@ -59,25 +58,24 @@ static struct drm_driver vkms_driver = { .minor = DRIVER_MINOR, }; -static const u32 vkms_formats[] = { - DRM_FORMAT_XRGB8888, +static const struct drm_mode_config_funcs vkms_mode_funcs = { + .atomic_check = drm_atomic_helper_check, + .atomic_commit = drm_atomic_helper_commit, }; -static void vkms_connector_destroy(struct drm_connector *connector) +static int vkms_modeset_init(struct vkms_device *vkmsdev) { - drm_connector_unregister(connector); - drm_connector_cleanup(connector); -} + struct drm_device *dev = &vkmsdev->drm; -static const struct drm_connector_funcs vkms_connector_funcs = { - .fill_modes = drm_helper_probe_single_connector_modes, - .destroy = vkms_connector_destroy, -}; + drm_mode_config_init(dev); + dev->mode_config.funcs = &vkms_mode_funcs; + dev->mode_config.min_width = XRES_MIN; + dev->mode_config.min_height = YRES_MIN; + dev->mode_config.max_width = XRES_MAX; + dev->mode_config.max_height = YRES_MAX; -static const struct drm_mode_config_funcs vkms_mode_funcs = { - .atomic_check = drm_atomic_helper_check, - .atomic_commit = drm_atomic_helper_commit, -}; + return vkms_output_init(vkmsdev); +} static int __init vkms_init(void) { @@ -98,48 +96,24 @@ static int __init vkms_init(void) goto out_fini; } - drm_mode_config_init(&vkms_device->drm); - vkms_device->drm.mode_config.funcs = &vkms_mode_funcs; - vkms_device->drm.mode_config.min_width = XRES_MIN; - vkms_device->drm.mode_config.min_height = YRES_MIN; - vkms_device->drm.mode_config.max_width = XRES_MAX; - vkms_device->drm.mode_config.max_height = YRES_MAX; - - ret = drm_connector_init(&vkms_device->drm, &vkms_device->connector, - &vkms_connector_funcs, - DRM_MODE_CONNECTOR_VIRTUAL); - if (ret < 0) { - DRM_ERROR("Failed to init connector\n"); - goto out_unregister; - } - - ret = drm_simple_display_pipe_init(&vkms_device->drm, - &vkms_device->pipe, - NULL, - vkms_formats, - ARRAY_SIZE(vkms_formats), - NULL, - &vkms_device->connector); - if (ret < 0) { - DRM_ERROR("Cannot setup simple display pipe\n"); + ret = vkms_modeset_init(vkms_device); + if (ret) goto out_unregister; - } ret = drm_dev_register(&vkms_device->drm, 0); if (ret) goto out_unregister; - drm_connector_register(&vkms_device->connector); - return 0; out_unregister: platform_device_unregister(vkms_device->platform); + out_fini: drm_dev_fini(&vkms_device->drm); + out_free: kfree(vkms_device); - return ret; } diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h index c77c5bf5032a..b0f9d2e61a42 100644 --- a/drivers/gpu/drm/vkms/vkms_drv.h +++ b/drivers/gpu/drm/vkms/vkms_drv.h @@ -1,13 +1,31 @@ #ifndef _VKMS_DRV_H_ #define _VKMS_DRV_H_ -#include +#include +#include +#include + +static const u32 vkms_formats[] = { + DRM_FORMAT_XRGB8888, +}; + +struct vkms_output { + struct drm_crtc crtc; + struct drm_encoder encoder; + struct drm_connector connector; +}; struct vkms_device { struct drm_device drm; struct platform_device *platform; - struct drm_simple_display_pipe pipe; - struct drm_connector connector; + struct vkms_output output; }; +int vkms_crtc_init(struct drm_device *dev, struct drm_crtc *crtc, + struct drm_plane *primary, struct drm_plane *cursor); + +int vkms_output_init(struct vkms_device *vkmsdev); + +struct drm_plane *vkms_plane_init(struct vkms_device *vkmsdev); + #endif /* _VKMS_DRV_H_ */ diff --git a/drivers/gpu/drm/vkms/vkms_output.c b/drivers/gpu/drm/vkms/vkms_output.c new file mode 100644 index 000000000000..48143eac3c12 --- /dev/null +++ b/drivers/gpu/drm/vkms/vkms_output.c @@ -0,0 +1,91 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include "vkms_drv.h" +#include + +static void vkms_connector_destroy(struct drm_connector *connector) +{ + drm_connector_unregister(connector); + drm_connector_cleanup(connector); +} + +static const struct drm_connector_funcs vkms_connector_funcs = { + .fill_modes = drm_helper_probe_single_connector_modes, + .destroy = vkms_connector_destroy, +}; + +static const struct drm_encoder_funcs vkms_encoder_funcs = { + .destroy = drm_encoder_cleanup, +}; + +int vkms_output_init(struct vkms_device *vkmsdev) +{ + struct vkms_output *output = &vkmsdev->output; + struct drm_device *dev = &vkmsdev->drm; + struct drm_connector *connector = &output->connector; + struct drm_encoder *encoder = &output->encoder; + struct drm_crtc *crtc = &output->crtc; + struct drm_plane *primary; + int ret; + + primary = vkms_plane_init(vkmsdev); + if (IS_ERR(primary)) + return PTR_ERR(primary); + + ret = vkms_crtc_init(dev, crtc, primary, NULL); + if (ret) + goto err_crtc; + + ret = drm_connector_init(dev, connector, &vkms_connector_funcs, + DRM_MODE_CONNECTOR_VIRTUAL); + if (ret) { + DRM_ERROR("Failed to init connector\n"); + goto err_connector; + } + + ret = drm_connector_register(connector); + if (ret) { + DRM_ERROR("Failed to register connector\n"); + goto err_connector_register; + } + + ret = drm_encoder_init(dev, encoder, &vkms_encoder_funcs, + DRM_MODE_ENCODER_VIRTUAL, NULL); + if (ret) { + DRM_ERROR("Failed to init encoder\n"); + goto err_encoder; + } + encoder->possible_crtcs = 1; + + ret = drm_mode_connector_attach_encoder(connector, encoder); + if (ret) { + DRM_ERROR("Failed to attach connector to encoder\n"); + goto err_attach; + } + + drm_mode_config_reset(dev); + + return 0; + +err_attach: + drm_encoder_cleanup(encoder); + +err_encoder: + drm_connector_unregister(connector); + +err_connector_register: + drm_connector_cleanup(connector); + +err_connector: + drm_crtc_cleanup(crtc); + +err_crtc: + drm_plane_cleanup(primary); + return ret; +} diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c new file mode 100644 index 000000000000..2c25b1d6ab5b --- /dev/null +++ b/drivers/gpu/drm/vkms/vkms_plane.c @@ -0,0 +1,46 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include "vkms_drv.h" +#include +#include + +static const struct drm_plane_funcs vkms_plane_funcs = { + .update_plane = drm_atomic_helper_update_plane, + .disable_plane = drm_atomic_helper_disable_plane, + .destroy = drm_plane_cleanup, + .reset = drm_atomic_helper_plane_reset, + .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, +}; + +struct drm_plane *vkms_plane_init(struct vkms_device *vkmsdev) +{ + struct drm_device *dev = &vkmsdev->drm; + struct drm_plane *plane; + const u32 *formats; + int ret, nformats; + + plane = kzalloc(sizeof(*plane), GFP_KERNEL); + if (!plane) + return ERR_PTR(-ENOMEM); + + formats = vkms_formats; + nformats = ARRAY_SIZE(vkms_formats); + + ret = drm_universal_plane_init(dev, plane, 0, + &vkms_plane_funcs, + formats, nformats, + NULL, DRM_PLANE_TYPE_PRIMARY, NULL); + if (ret) { + kfree(plane); + return ERR_PTR(ret); + } + + return plane; +} -- 2.20.1