| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Rob Clark | 3221 | 55.31% | 42 | 33.33% |
| Archit Taneja | 756 | 12.98% | 17 | 13.49% |
| Jordan Crouse | 510 | 8.76% | 11 | 8.73% |
| Jeykumar Sankaran | 455 | 7.81% | 10 | 7.94% |
| Hai Li | 183 | 3.14% | 3 | 2.38% |
| Sean Paul | 125 | 2.15% | 4 | 3.17% |
| Russell King | 81 | 1.39% | 2 | 1.59% |
| Jonathan Marek | 69 | 1.18% | 3 | 2.38% |
| Rajesh Yadav | 69 | 1.18% | 1 | 0.79% |
| Daniel Mack | 54 | 0.93% | 1 | 0.79% |
| Bruce Wang | 45 | 0.77% | 1 | 0.79% |
| Thomas Zimmermann | 38 | 0.65% | 2 | 1.59% |
| Kalyan Thota | 25 | 0.43% | 1 | 0.79% |
| Sam Ravnborg | 24 | 0.41% | 1 | 0.79% |
| Thierry Reding | 19 | 0.33% | 2 | 1.59% |
| Kristian H. Kristensen | 19 | 0.33% | 1 | 0.79% |
| Dan Carpenter | 14 | 0.24% | 1 | 0.79% |
| Krzysztof Kozlowski | 13 | 0.22% | 1 | 0.79% |
| Mamta Shukla | 12 | 0.21% | 1 | 0.79% |
| Noralf Trönnes | 12 | 0.21% | 2 | 1.59% |
| Daniel Vetter | 11 | 0.19% | 4 | 3.17% |
| Sushmita Susheelendra | 10 | 0.17% | 1 | 0.79% |
| Pavel Machek | 8 | 0.14% | 1 | 0.79% |
| Tom Gundersen | 7 | 0.12% | 1 | 0.79% |
| Jeffrey Hugo | 7 | 0.12% | 1 | 0.79% |
| Doug Anderson | 7 | 0.12% | 1 | 0.79% |
| Brian Masney | 6 | 0.10% | 1 | 0.79% |
| Peter Chen | 5 | 0.09% | 1 | 0.79% |
| Daniel R Thompson | 5 | 0.09% | 1 | 0.79% |
| Steve Kowalik | 4 | 0.07% | 1 | 0.79% |
| Wentao Xu | 3 | 0.05% | 1 | 0.79% |
| Arnd Bergmann | 2 | 0.03% | 1 | 0.79% |
| Thomas Gleixner | 2 | 0.03% | 1 | 0.79% |
| Linus Torvalds | 1 | 0.02% | 1 | 0.79% |
| Joe Perches | 1 | 0.02% | 1 | 0.79% |
| Christoph Hellwig | 1 | 0.02% | 1 | 0.79% |
| Total | 5824 | 126 |
// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved. * Copyright (C) 2013 Red Hat * Author: Rob Clark <robdclark@gmail.com> */ #include <linux/dma-mapping.h> #include <linux/kthread.h> #include <linux/uaccess.h> #include <uapi/linux/sched/types.h> #include <drm/drm_drv.h> #include <drm/drm_file.h> #include <drm/drm_ioctl.h> #include <drm/drm_irq.h> #include <drm/drm_prime.h> #include <drm/drm_of.h> #include <drm/drm_vblank.h> #include "msm_drv.h" #include "msm_debugfs.h" #include "msm_fence.h" #include "msm_gem.h" #include "msm_gpu.h" #include "msm_kms.h" #include "adreno/adreno_gpu.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 */ #define MSM_VERSION_MAJOR 1 #define MSM_VERSION_MINOR 5 #define MSM_VERSION_PATCHLEVEL 0 static const struct drm_mode_config_funcs mode_config_funcs = { .fb_create = msm_framebuffer_create, .output_poll_changed = drm_fb_helper_output_poll_changed, .atomic_check = drm_atomic_helper_check, .atomic_commit = drm_atomic_helper_commit, }; static const struct drm_mode_config_helper_funcs mode_config_helper_funcs = { .atomic_commit_tail = msm_atomic_commit_tail, }; #ifdef CONFIG_DRM_MSM_REGISTER_LOGGING static bool reglog = false; MODULE_PARM_DESC(reglog, "Enable register read/write logging"); module_param(reglog, bool, 0600); #else #define reglog 0 #endif #ifdef CONFIG_DRM_FBDEV_EMULATION static bool fbdev = true; MODULE_PARM_DESC(fbdev, "Enable fbdev compat layer"); module_param(fbdev, bool, 0600); #endif static char *vram = "16m"; MODULE_PARM_DESC(vram, "Configure VRAM size (for devices without IOMMU/GPUMMU)"); module_param(vram, charp, 0); bool dumpstate = false; MODULE_PARM_DESC(dumpstate, "Dump KMS state on errors"); module_param(dumpstate, bool, 0600); static bool modeset = true; MODULE_PARM_DESC(modeset, "Use kernel modesetting [KMS] (1=on (default), 0=disable)"); module_param(modeset, bool, 0600); /* * Util/helpers: */ struct clk *msm_clk_bulk_get_clock(struct clk_bulk_data *bulk, int count, const char *name) { int i; char n[32]; snprintf(n, sizeof(n), "%s_clk", name); for (i = 0; bulk && i < count; i++) { if (!strcmp(bulk[i].id, name) || !strcmp(bulk[i].id, n)) return bulk[i].clk; } return NULL; } struct clk *msm_clk_get(struct platform_device *pdev, const char *name) { struct clk *clk; char name2[32]; clk = devm_clk_get(&pdev->dev, name); if (!IS_ERR(clk) || PTR_ERR(clk) == -EPROBE_DEFER) return clk; snprintf(name2, sizeof(name2), "%s_clk", name); clk = devm_clk_get(&pdev->dev, name2); if (!IS_ERR(clk)) dev_warn(&pdev->dev, "Using legacy clk name binding. Use " "\"%s\" instead of \"%s\"\n", name, name2); return clk; } void __iomem *msm_ioremap(struct platform_device *pdev, const char *name, const char *dbgname) { struct resource *res; unsigned long size; void __iomem *ptr; if (name) res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name); else res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { DRM_DEV_ERROR(&pdev->dev, "failed to get memory resource: %s\n", name); return ERR_PTR(-EINVAL); } size = resource_size(res); ptr = devm_ioremap(&pdev->dev, res->start, size); if (!ptr) { DRM_DEV_ERROR(&pdev->dev, "failed to ioremap: %s\n", name); return ERR_PTR(-ENOMEM); } if (reglog) printk(KERN_DEBUG "IO:region %s %p %08lx\n", dbgname, ptr, size); return ptr; } void msm_writel(u32 data, void __iomem *addr) { if (reglog) printk(KERN_DEBUG "IO:W %p %08x\n", addr, data); writel(data, addr); } u32 msm_readl(const void __iomem *addr) { u32 val = readl(addr); if (reglog) pr_err("IO:R %p %08x\n", addr, val); return val; } struct msm_vblank_work { struct work_struct work; int crtc_id; bool enable; struct msm_drm_private *priv; }; static void vblank_ctrl_worker(struct work_struct *work) { struct msm_vblank_work *vbl_work = container_of(work, struct msm_vblank_work, work); struct msm_drm_private *priv = vbl_work->priv; struct msm_kms *kms = priv->kms; if (vbl_work->enable) kms->funcs->enable_vblank(kms, priv->crtcs[vbl_work->crtc_id]); else kms->funcs->disable_vblank(kms, priv->crtcs[vbl_work->crtc_id]); kfree(vbl_work); } static int vblank_ctrl_queue_work(struct msm_drm_private *priv, int crtc_id, bool enable) { struct msm_vblank_work *vbl_work; vbl_work = kzalloc(sizeof(*vbl_work), GFP_ATOMIC); if (!vbl_work) return -ENOMEM; INIT_WORK(&vbl_work->work, vblank_ctrl_worker); vbl_work->crtc_id = crtc_id; vbl_work->enable = enable; vbl_work->priv = priv; queue_work(priv->wq, &vbl_work->work); return 0; } static int msm_drm_uninit(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct drm_device *ddev = platform_get_drvdata(pdev); struct msm_drm_private *priv = ddev->dev_private; struct msm_kms *kms = priv->kms; struct msm_mdss *mdss = priv->mdss; int i; /* * Shutdown the hw if we're far enough along where things might be on. * If we run this too early, we'll end up panicking in any variety of * places. Since we don't register the drm device until late in * msm_drm_init, drm_dev->registered is used as an indicator that the * shutdown will be successful. */ if (ddev->registered) { drm_dev_unregister(ddev); drm_atomic_helper_shutdown(ddev); } /* We must cancel and cleanup any pending vblank enable/disable * work before drm_irq_uninstall() to avoid work re-enabling an * irq after uninstall has disabled it. */ flush_workqueue(priv->wq); /* clean up event worker threads */ for (i = 0; i < priv->num_crtcs; i++) { if (priv->event_thread[i].thread) { kthread_destroy_worker(&priv->event_thread[i].worker); priv->event_thread[i].thread = NULL; } } msm_gem_shrinker_cleanup(ddev); drm_kms_helper_poll_fini(ddev); msm_perf_debugfs_cleanup(priv); msm_rd_debugfs_cleanup(priv); #ifdef CONFIG_DRM_FBDEV_EMULATION if (fbdev && priv->fbdev) msm_fbdev_free(ddev); #endif drm_mode_config_cleanup(ddev); pm_runtime_get_sync(dev); drm_irq_uninstall(ddev); pm_runtime_put_sync(dev); if (kms && kms->funcs) kms->funcs->destroy(kms); if (priv->vram.paddr) { unsigned long attrs = DMA_ATTR_NO_KERNEL_MAPPING; drm_mm_takedown(&priv->vram.mm); dma_free_attrs(dev, priv->vram.size, NULL, priv->vram.paddr, attrs); } component_unbind_all(dev, ddev); if (mdss && mdss->funcs) mdss->funcs->destroy(ddev); ddev->dev_private = NULL; drm_dev_put(ddev); destroy_workqueue(priv->wq); kfree(priv); return 0; } #define KMS_MDP4 4 #define KMS_MDP5 5 #define KMS_DPU 3 static int get_mdp_ver(struct platform_device *pdev) { struct device *dev = &pdev->dev; return (int) (unsigned long) of_device_get_match_data(dev); } #include <linux/of_address.h> bool msm_use_mmu(struct drm_device *dev) { struct msm_drm_private *priv = dev->dev_private; /* a2xx comes with its own MMU */ return priv->is_a2xx || iommu_present(&platform_bus_type); } static int msm_init_vram(struct drm_device *dev) { struct msm_drm_private *priv = dev->dev_private; struct device_node *node; unsigned long size = 0; int ret = 0; /* In the device-tree world, we could have a 'memory-region' * phandle, which gives us a link to our "vram". Allocating * is all nicely abstracted behind the dma api, but we need * to know the entire size to allocate it all in one go. There * are two cases: * 1) device with no IOMMU, in which case we need exclusive * access to a VRAM carveout big enough for all gpu * buffers * 2) device with IOMMU, but where the bootloader puts up * a splash screen. In this case, the VRAM carveout * need only be large enough for fbdev fb. But we need * exclusive access to the buffer to avoid the kernel * using those pages for other purposes (which appears * as corruption on screen before we have a chance to * load and do initial modeset) */ node = of_parse_phandle(dev->dev->of_node, "memory-region", 0); if (node) { struct resource r; ret = of_address_to_resource(node, 0, &r); of_node_put(node); if (ret) return ret; size = r.end - r.start; DRM_INFO("using VRAM carveout: %lx@%pa\n", size, &r.start); /* if we have no IOMMU, then we need to use carveout allocator. * Grab the entire CMA chunk carved out in early startup in * mach-msm: */ } else if (!msm_use_mmu(dev)) { DRM_INFO("using %s VRAM carveout\n", vram); size = memparse(vram, NULL); } if (size) { unsigned long attrs = 0; void *p; priv->vram.size = size; drm_mm_init(&priv->vram.mm, 0, (size >> PAGE_SHIFT) - 1); spin_lock_init(&priv->vram.lock); attrs |= DMA_ATTR_NO_KERNEL_MAPPING; attrs |= DMA_ATTR_WRITE_COMBINE; /* note that for no-kernel-mapping, the vaddr returned * is bogus, but non-null if allocation succeeded: */ p = dma_alloc_attrs(dev->dev, size, &priv->vram.paddr, GFP_KERNEL, attrs); if (!p) { DRM_DEV_ERROR(dev->dev, "failed to allocate VRAM\n"); priv->vram.paddr = 0; return -ENOMEM; } DRM_DEV_INFO(dev->dev, "VRAM: %08x->%08x\n", (uint32_t)priv->vram.paddr, (uint32_t)(priv->vram.paddr + size)); } return ret; } static int msm_drm_init(struct device *dev, struct drm_driver *drv) { struct platform_device *pdev = to_platform_device(dev); struct drm_device *ddev; struct msm_drm_private *priv; struct msm_kms *kms; struct msm_mdss *mdss; int ret, i; struct sched_param param; ddev = drm_dev_alloc(drv, dev); if (IS_ERR(ddev)) { DRM_DEV_ERROR(dev, "failed to allocate drm_device\n"); return PTR_ERR(ddev); } platform_set_drvdata(pdev, ddev); priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) { ret = -ENOMEM; goto err_put_drm_dev; } ddev->dev_private = priv; priv->dev = ddev; switch (get_mdp_ver(pdev)) { case KMS_MDP5: ret = mdp5_mdss_init(ddev); break; case KMS_DPU: ret = dpu_mdss_init(ddev); break; default: ret = 0; break; } if (ret) goto err_free_priv; mdss = priv->mdss; priv->wq = alloc_ordered_workqueue("msm", 0); INIT_WORK(&priv->free_work, msm_gem_free_work); init_llist_head(&priv->free_list); INIT_LIST_HEAD(&priv->inactive_list); drm_mode_config_init(ddev); /* Bind all our sub-components: */ ret = component_bind_all(dev, ddev); if (ret) goto err_destroy_mdss; ret = msm_init_vram(ddev); if (ret) goto err_msm_uninit; if (!dev->dma_parms) { dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms), GFP_KERNEL); if (!dev->dma_parms) { ret = -ENOMEM; goto err_msm_uninit; } } dma_set_max_seg_size(dev, DMA_BIT_MASK(32)); msm_gem_shrinker_init(ddev); switch (get_mdp_ver(pdev)) { case KMS_MDP4: kms = mdp4_kms_init(ddev); priv->kms = kms; break; case KMS_MDP5: kms = mdp5_kms_init(ddev); break; case KMS_DPU: kms = dpu_kms_init(ddev); priv->kms = kms; break; default: /* valid only for the dummy headless case, where of_node=NULL */ WARN_ON(dev->of_node); kms = NULL; break; } if (IS_ERR(kms)) { DRM_DEV_ERROR(dev, "failed to load kms\n"); ret = PTR_ERR(kms); priv->kms = NULL; goto err_msm_uninit; } /* Enable normalization of plane zpos */ ddev->mode_config.normalize_zpos = true; if (kms) { kms->dev = ddev; ret = kms->funcs->hw_init(kms); if (ret) { DRM_DEV_ERROR(dev, "kms hw init failed: %d\n", ret); goto err_msm_uninit; } } ddev->mode_config.funcs = &mode_config_funcs; ddev->mode_config.helper_private = &mode_config_helper_funcs; /** * this priority was found during empiric testing to have appropriate * realtime scheduling to process display updates and interact with * other real time and normal priority task */ param.sched_priority = 16; for (i = 0; i < priv->num_crtcs; i++) { /* initialize event thread */ priv->event_thread[i].crtc_id = priv->crtcs[i]->base.id; kthread_init_worker(&priv->event_thread[i].worker); priv->event_thread[i].dev = ddev; priv->event_thread[i].thread = kthread_run(kthread_worker_fn, &priv->event_thread[i].worker, "crtc_event:%d", priv->event_thread[i].crtc_id); if (IS_ERR(priv->event_thread[i].thread)) { DRM_DEV_ERROR(dev, "failed to create crtc_event kthread\n"); priv->event_thread[i].thread = NULL; goto err_msm_uninit; } ret = sched_setscheduler(priv->event_thread[i].thread, SCHED_FIFO, ¶m); if (ret) dev_warn(dev, "event_thread set priority failed:%d\n", ret); } ret = drm_vblank_init(ddev, priv->num_crtcs); if (ret < 0) { DRM_DEV_ERROR(dev, "failed to initialize vblank\n"); goto err_msm_uninit; } if (kms) { pm_runtime_get_sync(dev); ret = drm_irq_install(ddev, kms->irq); pm_runtime_put_sync(dev); if (ret < 0) { DRM_DEV_ERROR(dev, "failed to install IRQ handler\n"); goto err_msm_uninit; } } ret = drm_dev_register(ddev, 0); if (ret) goto err_msm_uninit; drm_mode_config_reset(ddev); #ifdef CONFIG_DRM_FBDEV_EMULATION if (kms && fbdev) priv->fbdev = msm_fbdev_init(ddev); #endif ret = msm_debugfs_late_init(ddev); if (ret) goto err_msm_uninit; drm_kms_helper_poll_init(ddev); return 0; err_msm_uninit: msm_drm_uninit(dev); return ret; err_destroy_mdss: if (mdss && mdss->funcs) mdss->funcs->destroy(ddev); err_free_priv: kfree(priv); err_put_drm_dev: drm_dev_put(ddev); return ret; } /* * DRM operations: */ static void load_gpu(struct drm_device *dev) { static DEFINE_MUTEX(init_lock); struct msm_drm_private *priv = dev->dev_private; mutex_lock(&init_lock); if (!priv->gpu) priv->gpu = adreno_load_gpu(dev); mutex_unlock(&init_lock); } static int context_init(struct drm_device *dev, struct drm_file *file) { struct msm_drm_private *priv = dev->dev_private; struct msm_file_private *ctx; ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; msm_submitqueue_init(dev, ctx); ctx->aspace = priv->gpu ? priv->gpu->aspace : NULL; file->driver_priv = ctx; return 0; } static int msm_open(struct drm_device *dev, struct drm_file *file) { /* For now, load gpu on open.. to avoid the requirement of having * firmware in the initrd. */ load_gpu(dev); return context_init(dev, file); } static void context_close(struct msm_file_private *ctx) { msm_submitqueue_close(ctx); kfree(ctx); } static void msm_postclose(struct drm_device *dev, struct drm_file *file) { struct msm_drm_private *priv = dev->dev_private; struct msm_file_private *ctx = file->driver_priv; mutex_lock(&dev->struct_mutex); if (ctx == priv->lastctx) priv->lastctx = NULL; mutex_unlock(&dev->struct_mutex); context_close(ctx); } static irqreturn_t msm_irq(int irq, void *arg) { struct drm_device *dev = arg; struct msm_drm_private *priv = dev->dev_private; struct msm_kms *kms = priv->kms; BUG_ON(!kms); return kms->funcs->irq(kms); } static void msm_irq_preinstall(struct drm_device *dev) { struct msm_drm_private *priv = dev->dev_private; struct msm_kms *kms = priv->kms; BUG_ON(!kms); kms->funcs->irq_preinstall(kms); } static int msm_irq_postinstall(struct drm_device *dev) { struct msm_drm_private *priv = dev->dev_private; struct msm_kms *kms = priv->kms; BUG_ON(!kms); if (kms->funcs->irq_postinstall) return kms->funcs->irq_postinstall(kms); return 0; } static void msm_irq_uninstall(struct drm_device *dev) { struct msm_drm_private *priv = dev->dev_private; struct msm_kms *kms = priv->kms; BUG_ON(!kms); kms->funcs->irq_uninstall(kms); } int msm_crtc_enable_vblank(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; unsigned int pipe = crtc->index; struct msm_drm_private *priv = dev->dev_private; struct msm_kms *kms = priv->kms; if (!kms) return -ENXIO; DBG("dev=%p, crtc=%u", dev, pipe); return vblank_ctrl_queue_work(priv, pipe, true); } void msm_crtc_disable_vblank(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; unsigned int pipe = crtc->index; struct msm_drm_private *priv = dev->dev_private; struct msm_kms *kms = priv->kms; if (!kms) return; DBG("dev=%p, crtc=%u", dev, pipe); vblank_ctrl_queue_work(priv, pipe, false); } /* * DRM ioctls: */ static int msm_ioctl_get_param(struct drm_device *dev, void *data, struct drm_file *file) { struct msm_drm_private *priv = dev->dev_private; struct drm_msm_param *args = data; struct msm_gpu *gpu; /* for now, we just have 3d pipe.. eventually this would need to * be more clever to dispatch to appropriate gpu module: */ if (args->pipe != MSM_PIPE_3D0) return -EINVAL; gpu = priv->gpu; if (!gpu) return -ENXIO; return gpu->funcs->get_param(gpu, args->param, &args->value); } static int msm_ioctl_gem_new(struct drm_device *dev, void *data, struct drm_file *file) { struct drm_msm_gem_new *args = data; if (args->flags & ~MSM_BO_FLAGS) { DRM_ERROR("invalid flags: %08x\n", args->flags); return -EINVAL; } return msm_gem_new_handle(dev, file, args->size, args->flags, &args->handle, NULL); } static inline ktime_t to_ktime(struct drm_msm_timespec timeout) { return ktime_set(timeout.tv_sec, timeout.tv_nsec); } static int msm_ioctl_gem_cpu_prep(struct drm_device *dev, void *data, struct drm_file *file) { struct drm_msm_gem_cpu_prep *args = data; struct drm_gem_object *obj; ktime_t timeout = to_ktime(args->timeout); int ret; if (args->op & ~MSM_PREP_FLAGS) { DRM_ERROR("invalid op: %08x\n", args->op); return -EINVAL; } obj = drm_gem_object_lookup(file, args->handle); if (!obj) return -ENOENT; ret = msm_gem_cpu_prep(obj, args->op, &timeout); drm_gem_object_put_unlocked(obj); return ret; } static int msm_ioctl_gem_cpu_fini(struct drm_device *dev, void *data, struct drm_file *file) { struct drm_msm_gem_cpu_fini *args = data; struct drm_gem_object *obj; int ret; obj = drm_gem_object_lookup(file, args->handle); if (!obj) return -ENOENT; ret = msm_gem_cpu_fini(obj); drm_gem_object_put_unlocked(obj); return ret; } static int msm_ioctl_gem_info_iova(struct drm_device *dev, struct drm_gem_object *obj, uint64_t *iova) { struct msm_drm_private *priv = dev->dev_private; if (!priv->gpu) return -EINVAL; /* * Don't pin the memory here - just get an address so that userspace can * be productive */ return msm_gem_get_iova(obj, priv->gpu->aspace, iova); } static int msm_ioctl_gem_info(struct drm_device *dev, void *data, struct drm_file *file) { struct drm_msm_gem_info *args = data; struct drm_gem_object *obj; struct msm_gem_object *msm_obj; int i, ret = 0; if (args->pad) return -EINVAL; switch (args->info) { case MSM_INFO_GET_OFFSET: case MSM_INFO_GET_IOVA: /* value returned as immediate, not pointer, so len==0: */ if (args->len) return -EINVAL; break; case MSM_INFO_SET_NAME: case MSM_INFO_GET_NAME: break; default: return -EINVAL; } obj = drm_gem_object_lookup(file, args->handle); if (!obj) return -ENOENT; msm_obj = to_msm_bo(obj); switch (args->info) { case MSM_INFO_GET_OFFSET: args->value = msm_gem_mmap_offset(obj); break; case MSM_INFO_GET_IOVA: ret = msm_ioctl_gem_info_iova(dev, obj, &args->value); break; case MSM_INFO_SET_NAME: /* length check should leave room for terminating null: */ if (args->len >= sizeof(msm_obj->name)) { ret = -EINVAL; break; } if (copy_from_user(msm_obj->name, u64_to_user_ptr(args->value), args->len)) { msm_obj->name[0] = '\0'; ret = -EFAULT; break; } msm_obj->name[args->len] = '\0'; for (i = 0; i < args->len; i++) { if (!isprint(msm_obj->name[i])) { msm_obj->name[i] = '\0'; break; } } break; case MSM_INFO_GET_NAME: if (args->value && (args->len < strlen(msm_obj->name))) { ret = -EINVAL; break; } args->len = strlen(msm_obj->name); if (args->value) { if (copy_to_user(u64_to_user_ptr(args->value), msm_obj->name, args->len)) ret = -EFAULT; } break; } drm_gem_object_put_unlocked(obj); return ret; } static int msm_ioctl_wait_fence(struct drm_device *dev, void *data, struct drm_file *file) { struct msm_drm_private *priv = dev->dev_private; struct drm_msm_wait_fence *args = data; ktime_t timeout = to_ktime(args->timeout); struct msm_gpu_submitqueue *queue; struct msm_gpu *gpu = priv->gpu; int ret; if (args->pad) { DRM_ERROR("invalid pad: %08x\n", args->pad); return -EINVAL; } if (!gpu) return 0; queue = msm_submitqueue_get(file->driver_priv, args->queueid); if (!queue) return -ENOENT; ret = msm_wait_fence(gpu->rb[queue->prio]->fctx, args->fence, &timeout, true); msm_submitqueue_put(queue); return ret; } static int msm_ioctl_gem_madvise(struct drm_device *dev, void *data, struct drm_file *file) { struct drm_msm_gem_madvise *args = data; struct drm_gem_object *obj; int ret; switch (args->madv) { case MSM_MADV_DONTNEED: case MSM_MADV_WILLNEED: break; default: return -EINVAL; } ret = mutex_lock_interruptible(&dev->struct_mutex); if (ret) return ret; obj = drm_gem_object_lookup(file, args->handle); if (!obj) { ret = -ENOENT; goto unlock; } ret = msm_gem_madvise(obj, args->madv); if (ret >= 0) { args->retained = ret; ret = 0; } drm_gem_object_put(obj); unlock: mutex_unlock(&dev->struct_mutex); return ret; } static int msm_ioctl_submitqueue_new(struct drm_device *dev, void *data, struct drm_file *file) { struct drm_msm_submitqueue *args = data; if (args->flags & ~MSM_SUBMITQUEUE_FLAGS) return -EINVAL; return msm_submitqueue_create(dev, file->driver_priv, args->prio, args->flags, &args->id); } static int msm_ioctl_submitqueue_query(struct drm_device *dev, void *data, struct drm_file *file) { return msm_submitqueue_query(dev, file->driver_priv, data); } static int msm_ioctl_submitqueue_close(struct drm_device *dev, void *data, struct drm_file *file) { u32 id = *(u32 *) data; return msm_submitqueue_remove(file->driver_priv, id); } static const struct drm_ioctl_desc msm_ioctls[] = { DRM_IOCTL_DEF_DRV(MSM_GET_PARAM, msm_ioctl_get_param, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_NEW, msm_ioctl_gem_new, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_INFO, msm_ioctl_gem_info, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_PREP, msm_ioctl_gem_cpu_prep, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_FINI, msm_ioctl_gem_cpu_fini, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_SUBMIT, msm_ioctl_gem_submit, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_WAIT_FENCE, msm_ioctl_wait_fence, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_MADVISE, msm_ioctl_gem_madvise, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_SUBMITQUEUE_NEW, msm_ioctl_submitqueue_new, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_SUBMITQUEUE_CLOSE, msm_ioctl_submitqueue_close, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_SUBMITQUEUE_QUERY, msm_ioctl_submitqueue_query, DRM_RENDER_ALLOW), }; static const struct vm_operations_struct vm_ops = { .fault = msm_gem_fault, .open = drm_gem_vm_open, .close = drm_gem_vm_close, }; static const struct file_operations fops = { .owner = THIS_MODULE, .open = drm_open, .release = drm_release, .unlocked_ioctl = drm_ioctl, .compat_ioctl = drm_compat_ioctl, .poll = drm_poll, .read = drm_read, .llseek = no_llseek, .mmap = msm_gem_mmap, }; static struct drm_driver msm_driver = { .driver_features = DRIVER_GEM | DRIVER_RENDER | DRIVER_ATOMIC | DRIVER_MODESET, .open = msm_open, .postclose = msm_postclose, .lastclose = drm_fb_helper_lastclose, .irq_handler = msm_irq, .irq_preinstall = msm_irq_preinstall, .irq_postinstall = msm_irq_postinstall, .irq_uninstall = msm_irq_uninstall, .gem_free_object_unlocked = msm_gem_free_object, .gem_vm_ops = &vm_ops, .dumb_create = msm_gem_dumb_create, .dumb_map_offset = msm_gem_dumb_map_offset, .prime_handle_to_fd = drm_gem_prime_handle_to_fd, .prime_fd_to_handle = drm_gem_prime_fd_to_handle, .gem_prime_pin = msm_gem_prime_pin, .gem_prime_unpin = msm_gem_prime_unpin, .gem_prime_get_sg_table = msm_gem_prime_get_sg_table, .gem_prime_import_sg_table = msm_gem_prime_import_sg_table, .gem_prime_vmap = msm_gem_prime_vmap, .gem_prime_vunmap = msm_gem_prime_vunmap, .gem_prime_mmap = msm_gem_prime_mmap, #ifdef CONFIG_DEBUG_FS .debugfs_init = msm_debugfs_init, #endif .ioctls = msm_ioctls, .num_ioctls = ARRAY_SIZE(msm_ioctls), .fops = &fops, .name = "msm", .desc = "MSM Snapdragon DRM", .date = "20130625", .major = MSM_VERSION_MAJOR, .minor = MSM_VERSION_MINOR, .patchlevel = MSM_VERSION_PATCHLEVEL, }; #ifdef CONFIG_PM_SLEEP static int msm_pm_suspend(struct device *dev) { struct drm_device *ddev = dev_get_drvdata(dev); struct msm_drm_private *priv = ddev->dev_private; if (WARN_ON(priv->pm_state)) drm_atomic_state_put(priv->pm_state); priv->pm_state = drm_atomic_helper_suspend(ddev); if (IS_ERR(priv->pm_state)) { int ret = PTR_ERR(priv->pm_state); DRM_ERROR("Failed to suspend dpu, %d\n", ret); return ret; } return 0; } static int msm_pm_resume(struct device *dev) { struct drm_device *ddev = dev_get_drvdata(dev); struct msm_drm_private *priv = ddev->dev_private; int ret; if (WARN_ON(!priv->pm_state)) return -ENOENT; ret = drm_atomic_helper_resume(ddev, priv->pm_state); if (!ret) priv->pm_state = NULL; return ret; } #endif #ifdef CONFIG_PM static int msm_runtime_suspend(struct device *dev) { struct drm_device *ddev = dev_get_drvdata(dev); struct msm_drm_private *priv = ddev->dev_private; struct msm_mdss *mdss = priv->mdss; DBG(""); if (mdss && mdss->funcs) return mdss->funcs->disable(mdss); return 0; } static int msm_runtime_resume(struct device *dev) { struct drm_device *ddev = dev_get_drvdata(dev); struct msm_drm_private *priv = ddev->dev_private; struct msm_mdss *mdss = priv->mdss; DBG(""); if (mdss && mdss->funcs) return mdss->funcs->enable(mdss); return 0; } #endif static const struct dev_pm_ops msm_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(msm_pm_suspend, msm_pm_resume) SET_RUNTIME_PM_OPS(msm_runtime_suspend, msm_runtime_resume, NULL) }; /* * Componentized driver support: */ /* * NOTE: duplication of 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; } /* * 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 *mdp_dev, struct component_match **matchptr) { struct device_node *np = mdp_dev->of_node; struct device_node *ep_node; struct device *master_dev; /* * on MDP4 based platforms, the MDP platform device is the component * master that adds other display interface components to itself. * * on MDP5 based platforms, the MDSS platform device is the component * master that adds MDP5 and other display interface components to * itself. */ if (of_device_is_compatible(np, "qcom,mdp4")) master_dev = mdp_dev; else master_dev = mdp_dev->parent; for_each_endpoint_of_node(np, ep_node) { struct device_node *intf; struct of_endpoint ep; int ret; ret = of_graph_parse_endpoint(ep_node, &ep); if (ret) { DRM_DEV_ERROR(mdp_dev, "unable to parse port endpoint\n"); of_node_put(ep_node); return ret; } /* * The LCDC/LVDS port on MDP4 is a speacial case where the * remote-endpoint isn't a component that we need to add */ if (of_device_is_compatible(np, "qcom,mdp4") && ep.port == 0) continue; /* * It's okay if some of the ports don't have a remote endpoint * specified. It just means that the port isn't connected to * any external interface. */ intf = of_graph_get_remote_port_parent(ep_node); if (!intf) continue; if (of_device_is_available(intf)) drm_of_component_match_add(master_dev, matchptr, compare_of, intf); of_node_put(intf); } return 0; } static int compare_name_mdp(struct device *dev, void *data) { return (strstr(dev_name(dev), "mdp") != NULL); } static int add_display_components(struct device *dev, struct component_match **matchptr) { struct device *mdp_dev; int ret; /* * MDP5/DPU based devices don't have a flat hierarchy. There is a top * level parent: MDSS, and children: MDP5/DPU, DSI, HDMI, eDP etc. * Populate the children devices, find the MDP5/DPU node, and then add * the interfaces to our components list. */ if (of_device_is_compatible(dev->of_node, "qcom,mdss") || of_device_is_compatible(dev->of_node, "qcom,sdm845-mdss") || of_device_is_compatible(dev->of_node, "qcom,sc7180-mdss")) { ret = of_platform_populate(dev->of_node, NULL, NULL, dev); if (ret) { DRM_DEV_ERROR(dev, "failed to populate children devices\n"); return ret; } mdp_dev = device_find_child(dev, NULL, compare_name_mdp); if (!mdp_dev) { DRM_DEV_ERROR(dev, "failed to find MDSS MDP node\n"); of_platform_depopulate(dev); return -ENODEV; } put_device(mdp_dev); /* add the MDP component itself */ drm_of_component_match_add(dev, matchptr, compare_of, mdp_dev->of_node); } else { /* MDP4 */ mdp_dev = dev; } ret = add_components_mdp(mdp_dev, matchptr); if (ret) of_platform_depopulate(dev); return ret; } /* * 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[] = { { .compatible = "qcom,adreno" }, { .compatible = "qcom,adreno-3xx" }, { .compatible = "amd,imageon" }, { .compatible = "qcom,kgsl-3d0" }, { }, }; static int add_gpu_components(struct device *dev, struct component_match **matchptr) { struct device_node *np; np = of_find_matching_node(NULL, msm_gpu_match); if (!np) return 0; if (of_device_is_available(np)) drm_of_component_match_add(dev, matchptr, compare_of, np); of_node_put(np); return 0; } static int msm_drm_bind(struct device *dev) { return msm_drm_init(dev, &msm_driver); } static void msm_drm_unbind(struct device *dev) { msm_drm_uninit(dev); } static const struct component_master_ops msm_drm_ops = { .bind = msm_drm_bind, .unbind = msm_drm_unbind, }; /* * Platform driver: */ static int msm_pdev_probe(struct platform_device *pdev) { struct component_match *match = NULL; int ret; if (get_mdp_ver(pdev)) { ret = add_display_components(&pdev->dev, &match); if (ret) return ret; } ret = add_gpu_components(&pdev->dev, &match); if (ret) goto fail; /* on all devices that I am aware of, iommu's which can map * any address the cpu can see are used: */ ret = dma_set_mask_and_coherent(&pdev->dev, ~0); if (ret) goto fail; ret = component_master_add_with_match(&pdev->dev, &msm_drm_ops, match); if (ret) goto fail; return 0; fail: of_platform_depopulate(&pdev->dev); return ret; } static int msm_pdev_remove(struct platform_device *pdev) { component_master_del(&pdev->dev, &msm_drm_ops); of_platform_depopulate(&pdev->dev); return 0; } static const struct of_device_id dt_match[] = { { .compatible = "qcom,mdp4", .data = (void *)KMS_MDP4 }, { .compatible = "qcom,mdss", .data = (void *)KMS_MDP5 }, { .compatible = "qcom,sdm845-mdss", .data = (void *)KMS_DPU }, { .compatible = "qcom,sc7180-mdss", .data = (void *)KMS_DPU }, {} }; MODULE_DEVICE_TABLE(of, dt_match); static struct platform_driver msm_platform_driver = { .probe = msm_pdev_probe, .remove = msm_pdev_remove, .driver = { .name = "msm", .of_match_table = dt_match, .pm = &msm_pm_ops, }, }; static int __init msm_drm_register(void) { if (!modeset) return -EINVAL; DBG("init"); msm_mdp_register(); msm_dpu_register(); msm_dsi_register(); msm_edp_register(); msm_hdmi_register(); adreno_register(); return platform_driver_register(&msm_platform_driver); } static void __exit msm_drm_unregister(void) { DBG("fini"); platform_driver_unregister(&msm_platform_driver); msm_hdmi_unregister(); adreno_unregister(); msm_edp_unregister(); msm_dsi_unregister(); msm_mdp_unregister(); msm_dpu_unregister(); } module_init(msm_drm_register); module_exit(msm_drm_unregister); MODULE_AUTHOR("Rob Clark <robdclark@gmail.com"); MODULE_DESCRIPTION("MSM DRM Driver"); MODULE_LICENSE("GPL");
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