Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Haneen Mohammed | 429 | 52.77% | 4 | 19.05% |
rodrigosiqueira | 184 | 22.63% | 10 | 47.62% |
Daniel Vetter | 137 | 16.85% | 3 | 14.29% |
Emil Velikov | 37 | 4.55% | 1 | 4.76% |
Sam Ravnborg | 17 | 2.09% | 1 | 4.76% |
Simon Ser | 8 | 0.98% | 1 | 4.76% |
kbuild test robot | 1 | 0.12% | 1 | 4.76% |
Total | 813 | 21 |
// SPDX-License-Identifier: GPL-2.0+ /** * DOC: vkms (Virtual Kernel Modesetting) * * vkms is a software-only model of a kms driver that is useful for testing, * or for running X (or similar) on headless machines and be able to still * use the GPU. vkms aims to enable a virtual display without the need for * a hardware display capability. */ #include <linux/module.h> #include <linux/platform_device.h> #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_drv.h> #include <drm/drm_fb_helper.h> #include <drm/drm_file.h> #include <drm/drm_gem.h> #include <drm/drm_gem_framebuffer_helper.h> #include <drm/drm_ioctl.h> #include <drm/drm_probe_helper.h> #include <drm/drm_vblank.h> #include "vkms_drv.h" #define DRIVER_NAME "vkms" #define DRIVER_DESC "Virtual Kernel Mode Setting" #define DRIVER_DATE "20180514" #define DRIVER_MAJOR 1 #define DRIVER_MINOR 0 static struct vkms_device *vkms_device; bool enable_cursor; module_param_named(enable_cursor, enable_cursor, bool, 0444); MODULE_PARM_DESC(enable_cursor, "Enable/Disable cursor support"); static const struct file_operations vkms_driver_fops = { .owner = THIS_MODULE, .open = drm_open, .mmap = drm_gem_mmap, .unlocked_ioctl = drm_ioctl, .compat_ioctl = drm_compat_ioctl, .poll = drm_poll, .read = drm_read, .llseek = no_llseek, .release = drm_release, }; static const struct vm_operations_struct vkms_gem_vm_ops = { .fault = vkms_gem_fault, .open = drm_gem_vm_open, .close = drm_gem_vm_close, }; static void vkms_release(struct drm_device *dev) { struct vkms_device *vkms = container_of(dev, struct vkms_device, drm); platform_device_unregister(vkms->platform); drm_atomic_helper_shutdown(&vkms->drm); drm_mode_config_cleanup(&vkms->drm); drm_dev_fini(&vkms->drm); destroy_workqueue(vkms->output.composer_workq); } static void vkms_atomic_commit_tail(struct drm_atomic_state *old_state) { struct drm_device *dev = old_state->dev; struct drm_crtc *crtc; struct drm_crtc_state *old_crtc_state; int i; drm_atomic_helper_commit_modeset_disables(dev, old_state); drm_atomic_helper_commit_planes(dev, old_state, 0); drm_atomic_helper_commit_modeset_enables(dev, old_state); drm_atomic_helper_fake_vblank(old_state); drm_atomic_helper_commit_hw_done(old_state); drm_atomic_helper_wait_for_vblanks(dev, old_state); for_each_old_crtc_in_state(old_state, crtc, old_crtc_state, i) { struct vkms_crtc_state *vkms_state = to_vkms_crtc_state(old_crtc_state); flush_work(&vkms_state->composer_work); } drm_atomic_helper_cleanup_planes(dev, old_state); } static struct drm_driver vkms_driver = { .driver_features = DRIVER_MODESET | DRIVER_ATOMIC | DRIVER_GEM, .release = vkms_release, .fops = &vkms_driver_fops, .dumb_create = vkms_dumb_create, .gem_vm_ops = &vkms_gem_vm_ops, .gem_free_object_unlocked = vkms_gem_free_object, .get_vblank_timestamp = vkms_get_vblank_timestamp, .name = DRIVER_NAME, .desc = DRIVER_DESC, .date = DRIVER_DATE, .major = DRIVER_MAJOR, .minor = DRIVER_MINOR, }; static const struct drm_mode_config_funcs vkms_mode_funcs = { .fb_create = drm_gem_fb_create, .atomic_check = drm_atomic_helper_check, .atomic_commit = drm_atomic_helper_commit, }; static const struct drm_mode_config_helper_funcs vkms_mode_config_helpers = { .atomic_commit_tail = vkms_atomic_commit_tail, }; static int vkms_modeset_init(struct vkms_device *vkmsdev) { struct drm_device *dev = &vkmsdev->drm; 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; dev->mode_config.preferred_depth = 24; dev->mode_config.helper_private = &vkms_mode_config_helpers; return vkms_output_init(vkmsdev, 0); } static int __init vkms_init(void) { int ret; vkms_device = kzalloc(sizeof(*vkms_device), GFP_KERNEL); if (!vkms_device) return -ENOMEM; vkms_device->platform = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0); if (IS_ERR(vkms_device->platform)) { ret = PTR_ERR(vkms_device->platform); goto out_free; } ret = drm_dev_init(&vkms_device->drm, &vkms_driver, &vkms_device->platform->dev); if (ret) goto out_unregister; vkms_device->drm.irq_enabled = true; ret = drm_vblank_init(&vkms_device->drm, 1); if (ret) { DRM_ERROR("Failed to vblank\n"); goto out_fini; } ret = vkms_modeset_init(vkms_device); if (ret) goto out_fini; ret = drm_dev_register(&vkms_device->drm, 0); if (ret) goto out_fini; return 0; out_fini: drm_dev_fini(&vkms_device->drm); out_unregister: platform_device_unregister(vkms_device->platform); out_free: kfree(vkms_device); return ret; } static void __exit vkms_exit(void) { if (!vkms_device) { DRM_INFO("vkms_device is NULL.\n"); return; } drm_dev_unregister(&vkms_device->drm); drm_dev_put(&vkms_device->drm); kfree(vkms_device); } module_init(vkms_init); module_exit(vkms_exit); MODULE_AUTHOR("Haneen Mohammed <hamohammed.sa@gmail.com>"); MODULE_AUTHOR("Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>"); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL");
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