/* * Copyright (C) 2014-2015 Broadcom * Copyright (C) 2013 Red Hat * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include #include #include #include #include #include #include "uapi/drm/vc4_drm.h" #include "vc4_drv.h" #include "vc4_regs.h" #define DRIVER_NAME "vc4" #define DRIVER_DESC "Broadcom VC4 graphics" #define DRIVER_DATE "20140616" #define DRIVER_MAJOR 0 #define DRIVER_MINOR 0 #define DRIVER_PATCHLEVEL 0 /* * Helper function for mapping the regs on a platform device. * * We assume only one register range per device, so we use index 0. */ void __iomem * vc4_ioremap_regs(struct platform_device *dev, int index) { struct resource *res; void __iomem *map; res = platform_get_resource(dev, IORESOURCE_MEM, index); map = devm_ioremap_resource(&dev->dev, res); if (IS_ERR(map)) { int ret = PTR_ERR(map); DRM_ERROR("Failed to map registers: %d\n", ret); return map; } return map; } static int vc4_drm_load(struct drm_device *dev, unsigned long flags) { struct vc4_dev *vc4; int ret; vc4 = devm_kzalloc(dev->dev, sizeof(*vc4), GFP_KERNEL); if (!vc4) return -ENOMEM; dev_set_drvdata(dev->dev, dev); vc4->dev = dev; dev->dev_private = vc4; drm_mode_config_init(dev); vc4_gem_init(dev); ret = component_bind_all(dev->dev, dev); if (ret) { vc4_gem_destroy(dev); return ret; } vc4_kms_load(dev); return 0; } static int vc4_drm_unload(struct drm_device *dev) { drm_mode_config_cleanup(dev); component_unbind_all(dev->dev, dev); return 0; } static const struct file_operations vc4_drm_fops = { .owner = THIS_MODULE, .open = drm_open, .release = drm_release, .unlocked_ioctl = drm_ioctl, .mmap = drm_gem_cma_mmap, .poll = drm_poll, .read = drm_read, #ifdef CONFIG_COMPAT .compat_ioctl = drm_compat_ioctl, #endif .llseek = noop_llseek, }; static const struct drm_ioctl_desc vc4_drm_ioctls[] = { DRM_IOCTL_DEF_DRV(VC4_SUBMIT_CL, vc4_submit_cl_ioctl, 0), DRM_IOCTL_DEF_DRV(VC4_WAIT_SEQNO, vc4_wait_seqno_ioctl, 0), DRM_IOCTL_DEF_DRV(VC4_WAIT_BO, vc4_wait_bo_ioctl, 0), DRM_IOCTL_DEF_DRV(VC4_CREATE_BO, vc4_create_bo_ioctl, 0), DRM_IOCTL_DEF_DRV(VC4_MMAP_BO, vc4_mmap_bo_ioctl, 0), }; static struct drm_driver vc4_drm_driver = { .driver_features = (DRIVER_MODESET | DRIVER_ATOMIC | DRIVER_GEM | DRIVER_HAVE_IRQ | DRIVER_PRIME), .load = vc4_drm_load, .unload = vc4_drm_unload, .set_busid = drm_platform_set_busid, .irq_handler = vc4_irq, .irq_preinstall = vc4_irq_preinstall, .irq_postinstall = vc4_irq_postinstall, .irq_uninstall = vc4_irq_uninstall, .enable_vblank = vc4_enable_vblank, .disable_vblank = vc4_disable_vblank, .get_vblank_counter = drm_vblank_count, #if defined(CONFIG_DEBUG_FS) .debugfs_init = vc4_debugfs_init, .debugfs_cleanup = vc4_debugfs_cleanup, #endif .gem_free_object = vc4_free_object, .gem_vm_ops = &drm_gem_cma_vm_ops, .prime_handle_to_fd = drm_gem_prime_handle_to_fd, .prime_fd_to_handle = drm_gem_prime_fd_to_handle, .gem_prime_import = vc4_prime_import, .gem_prime_export = vc4_prime_export, .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table, .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table, .gem_prime_vmap = drm_gem_cma_prime_vmap, .gem_prime_vunmap = drm_gem_cma_prime_vunmap, .gem_prime_mmap = drm_gem_cma_prime_mmap, .dumb_create = vc4_dumb_create, .dumb_map_offset = drm_gem_cma_dumb_map_offset, .dumb_destroy = drm_gem_dumb_destroy, .ioctls = vc4_drm_ioctls, .num_ioctls = ARRAY_SIZE(vc4_drm_ioctls), .fops = &vc4_drm_fops, .gem_obj_size = sizeof(struct vc4_bo), .name = DRIVER_NAME, .desc = DRIVER_DESC, .date = DRIVER_DATE, .major = DRIVER_MAJOR, .minor = DRIVER_MINOR, .patchlevel = DRIVER_PATCHLEVEL, }; static int vc4_drm_bind(struct device *dev) { return drm_platform_init(&vc4_drm_driver, to_platform_device(dev)); } static void vc4_drm_unbind(struct device *dev) { drm_put_dev(platform_get_drvdata(to_platform_device(dev))); } static const struct component_master_ops vc4_drm_ops = { .bind = vc4_drm_bind, .unbind = vc4_drm_unbind, }; /* NOTE: the CONFIG_OF case duplicates the same code as exynos or imx * (or probably any other).. so probably some room for some helpers */ static int compare_of(struct device *dev, void *data) { return dev->of_node == data; } static int add_components(struct device *dev, struct component_match **matchptr, const char *name) { struct device_node *np = dev->of_node; unsigned i; for (i = 0; ; i++) { struct device_node *node; node = of_parse_phandle(np, name, i); if (!node) break; component_match_add(dev, matchptr, compare_of, node); } return 0; } static int vc4_platform_drm_probe(struct platform_device *pdev) { struct component_match *match = NULL; add_components(&pdev->dev, &match, "gpus"); add_components(&pdev->dev, &match, "crtcs"); add_components(&pdev->dev, &match, "encoders"); add_components(&pdev->dev, &match, "hvss"); pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); return component_master_add_with_match(&pdev->dev, &vc4_drm_ops, match); } static int vc4_platform_drm_remove(struct platform_device *pdev) { drm_put_dev(platform_get_drvdata(pdev)); return 0; } static const struct of_device_id vc4_of_match[] = { { .compatible = "brcm,vc4", }, {}, }; MODULE_DEVICE_TABLE(of, vc4_of_match); static struct platform_driver vc4_platform_driver = { .probe = vc4_platform_drm_probe, .remove = vc4_platform_drm_remove, .driver = { .name = "vc4-drm", .owner = THIS_MODULE, .of_match_table = vc4_of_match, }, }; static int __init vc4_drm_register(void) { vc4_v3d_register(); vc4_hdmi_register(); vc4_crtc_register(); vc4_hvs_register(); return platform_driver_register(&vc4_platform_driver); } static void __exit vc4_drm_unregister(void) { platform_driver_unregister(&vc4_platform_driver); vc4_hvs_unregister(); vc4_crtc_unregister(); vc4_hdmi_unregister(); vc4_v3d_unregister(); } module_init(vc4_drm_register); module_exit(vc4_drm_unregister); MODULE_ALIAS("platform:vc4-drm"); MODULE_DESCRIPTION("Broadcom VC4 DRM Driver"); MODULE_AUTHOR("Eric Anholt "); MODULE_LICENSE("GPL v2");