// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2016-2018, 2020-2021 The Linux Foundation. All rights reserved. * Copyright (C) 2013 Red Hat * Author: Rob Clark <[email protected]> */ #include <linux/dma-mapping.h> #include <linux/fault-inject.h> #include <linux/of_address.h> #include <linux/uaccess.h> #include <drm/drm_drv.h> #include <drm/drm_file.h> #include <drm/drm_ioctl.h> #include <drm/drm_of.h> #include "msm_drv.h" #include "msm_debugfs.h" #include "msm_gem.h" #include "msm_gpu.h" #include "msm_kms.h" /* * MSM driver version: * - 1.0.0 - initial interface * - 1.1.0 - adds madvise, and support for submits with > 4 cmd buffers * - 1.2.0 - adds explicit fence support for submit ioctl * - 1.3.0 - adds GMEM_BASE + NR_RINGS params, SUBMITQUEUE_NEW + * SUBMITQUEUE_CLOSE ioctls, and MSM_INFO_IOVA flag for * MSM_GEM_INFO ioctl. * - 1.4.0 - softpin, MSM_RELOC_BO_DUMP, and GEM_INFO support to set/get * GEM object's debug name * - 1.5.0 - Add SUBMITQUERY_QUERY ioctl * - 1.6.0 - Syncobj support * - 1.7.0 - Add MSM_PARAM_SUSPENDS to access suspend count * - 1.8.0 - Add MSM_BO_CACHED_COHERENT for supported GPUs (a6xx) * - 1.9.0 - Add MSM_SUBMIT_FENCE_SN_IN * - 1.10.0 - Add MSM_SUBMIT_BO_NO_IMPLICIT * - 1.11.0 - Add wait boost (MSM_WAIT_FENCE_BOOST, MSM_PREP_BOOST) * - 1.12.0 - Add MSM_INFO_SET_METADATA and MSM_INFO_GET_METADATA */ #define MSM_VERSION_MAJOR … #define MSM_VERSION_MINOR … #define MSM_VERSION_PATCHLEVEL … static void msm_deinit_vram(struct drm_device *ddev); static char *vram = …; MODULE_PARM_DESC(…) …; module_param(vram, charp, 0); bool dumpstate; MODULE_PARM_DESC(…) …; module_param(dumpstate, bool, 0600); static bool modeset = …; MODULE_PARM_DESC(…) …; module_param(modeset, bool, 0600); #ifdef CONFIG_FAULT_INJECTION DECLARE_FAULT_ATTR(fail_gem_alloc); DECLARE_FAULT_ATTR(fail_gem_iova); #endif static int msm_drm_uninit(struct device *dev) { … } bool msm_use_mmu(struct drm_device *dev) { … } static int msm_init_vram(struct drm_device *dev) { … } static void msm_deinit_vram(struct drm_device *ddev) { … } static int msm_drm_init(struct device *dev, const struct drm_driver *drv) { … } /* * DRM operations: */ static void load_gpu(struct drm_device *dev) { … } static int context_init(struct drm_device *dev, struct drm_file *file) { … } static int msm_open(struct drm_device *dev, struct drm_file *file) { … } static void context_close(struct msm_file_private *ctx) { … } static void msm_postclose(struct drm_device *dev, struct drm_file *file) { … } /* * DRM ioctls: */ static int msm_ioctl_get_param(struct drm_device *dev, void *data, struct drm_file *file) { … } static int msm_ioctl_set_param(struct drm_device *dev, void *data, struct drm_file *file) { … } static int msm_ioctl_gem_new(struct drm_device *dev, void *data, struct drm_file *file) { … } static inline ktime_t to_ktime(struct drm_msm_timespec timeout) { … } static int msm_ioctl_gem_cpu_prep(struct drm_device *dev, void *data, struct drm_file *file) { … } static int msm_ioctl_gem_cpu_fini(struct drm_device *dev, void *data, struct drm_file *file) { … } static int msm_ioctl_gem_info_iova(struct drm_device *dev, struct drm_file *file, struct drm_gem_object *obj, uint64_t *iova) { … } static int msm_ioctl_gem_info_set_iova(struct drm_device *dev, struct drm_file *file, struct drm_gem_object *obj, uint64_t iova) { … } static int msm_ioctl_gem_info_set_metadata(struct drm_gem_object *obj, __user void *metadata, u32 metadata_size) { … } static int msm_ioctl_gem_info_get_metadata(struct drm_gem_object *obj, __user void *metadata, u32 *metadata_size) { … } static int msm_ioctl_gem_info(struct drm_device *dev, void *data, struct drm_file *file) { … } static int wait_fence(struct msm_gpu_submitqueue *queue, uint32_t fence_id, ktime_t timeout, uint32_t flags) { … } static int msm_ioctl_wait_fence(struct drm_device *dev, void *data, struct drm_file *file) { … } static int msm_ioctl_gem_madvise(struct drm_device *dev, void *data, struct drm_file *file) { … } static int msm_ioctl_submitqueue_new(struct drm_device *dev, void *data, struct drm_file *file) { … } static int msm_ioctl_submitqueue_query(struct drm_device *dev, void *data, struct drm_file *file) { … } static int msm_ioctl_submitqueue_close(struct drm_device *dev, void *data, struct drm_file *file) { … } static const struct drm_ioctl_desc msm_ioctls[] = …; static void msm_show_fdinfo(struct drm_printer *p, struct drm_file *file) { … } static const struct file_operations fops = …; static const struct drm_driver msm_driver = …; /* * Componentized driver support: */ /* * Identify what components need to be added by parsing what remote-endpoints * our MDP output ports are connected to. In the case of LVDS on MDP4, there * is no external component that we need to add since LVDS is within MDP4 * itself. */ static int add_components_mdp(struct device *master_dev, struct component_match **matchptr) { … } #if !IS_REACHABLE(CONFIG_DRM_MSM_MDP5) || !IS_REACHABLE(CONFIG_DRM_MSM_DPU) bool msm_disp_drv_should_bind(struct device *dev, bool dpu_driver) { /* If just a single driver is enabled, use it no matter what */ return true; } #else static bool prefer_mdp5 = …; MODULE_PARM_DESC(…) …; module_param(prefer_mdp5, bool, 0444); /* list all platforms supported by both mdp5 and dpu drivers */ static const char *const msm_mdp5_dpu_migration[] = …; bool msm_disp_drv_should_bind(struct device *dev, bool dpu_driver) { … } #endif /* * We don't know what's the best binding to link the gpu with the drm device. * Fow now, we just hunt for all the possible gpus that we support, and add them * as components. */ static const struct of_device_id msm_gpu_match[] = …; static int add_gpu_components(struct device *dev, struct component_match **matchptr) { … } static int msm_drm_bind(struct device *dev) { … } static void msm_drm_unbind(struct device *dev) { … } const struct component_master_ops msm_drm_ops = …; int msm_drv_probe(struct device *master_dev, int (*kms_init)(struct drm_device *dev), struct msm_kms *kms) { … } /* * Platform driver: * Used only for headlesss GPU instances */ static int msm_pdev_probe(struct platform_device *pdev) { … } static void msm_pdev_remove(struct platform_device *pdev) { … } static struct platform_driver msm_platform_driver = …; static int __init msm_drm_register(void) { … } static void __exit msm_drm_unregister(void) { … } module_init(…) …; module_exit(msm_drm_unregister); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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