/* * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved. */ /* * Copyright (c) 2016-2021, The Linux Foundation. All rights reserved. * Copyright (C) 2013 Red Hat * Author: Rob Clark * * 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. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program. If not, see . */ /* * Copyright (c) 2016 Intel Corporation * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that copyright * notice and this permission notice appear in supporting documentation, and * that the name of the copyright holders not be used in advertising or * publicity pertaining to distribution of the software without specific, * written prior permission. The copyright holders make no representations * about the suitability of this software for any purpose. It is provided "as * is" without express or implied warranty. * * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE * OF THIS SOFTWARE. */ #include #include #include #include #include #include "msm_drv.h" #include "msm_kms.h" #include "msm_mmu.h" #include "sde_wb.h" #include "sde_dbg.h" #if defined(OPLUS_FEATURE_PXLW_IRIS5) || defined(CONFIG_PXLW_SOFT_IRIS) #include "dsi/iris/dsi_iris5_api.h" #endif #ifdef OPLUS_FEATURE_ADFR #include "oplus_adfr.h" #endif /* * 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. */ #define MSM_VERSION_MAJOR 1 #define MSM_VERSION_MINOR 3 #define MSM_VERSION_PATCHLEVEL 0 #define IDLE_ENCODER_MASK_DEFAULT 1 #define IDLE_TIMEOUT_MS_DEFAULT 100 static DEFINE_MUTEX(msm_release_lock); static void msm_fb_output_poll_changed(struct drm_device *dev) { struct msm_drm_private *priv = NULL; if (!dev) { DRM_ERROR("output_poll_changed failed, invalid input\n"); return; } priv = dev->dev_private; if (priv->fbdev) drm_fb_helper_hotplug_event(priv->fbdev); } /** * msm_atomic_helper_check - validate state object * @dev: DRM device * @state: the driver state object * * This is a wrapper for the drm_atomic_helper_check to check the modeset * and state checking for planes. Additionally it checks if any secure * transition(moving CRTC and planes between secure and non-secure states and * vice versa) is allowed or not. When going to secure state, planes * with fb_mode as dir translated only can be staged on the CRTC, and only one * CRTC should be active. * Also mixing of secure and non-secure is not allowed. * * RETURNS * Zero for success or -errorno. */ int msm_atomic_check(struct drm_device *dev, struct drm_atomic_state *state) { struct msm_drm_private *priv; priv = dev->dev_private; if (priv && priv->kms && priv->kms->funcs && priv->kms->funcs->atomic_check) return priv->kms->funcs->atomic_check(priv->kms, state); return drm_atomic_helper_check(dev, state); } static const struct drm_mode_config_funcs mode_config_funcs = { .fb_create = msm_framebuffer_create, .output_poll_changed = msm_fb_output_poll_changed, .atomic_check = msm_atomic_check, .atomic_commit = msm_atomic_commit, .atomic_state_alloc = msm_atomic_state_alloc, .atomic_state_clear = msm_atomic_state_clear, .atomic_state_free = msm_atomic_state_free, }; 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: */ int msm_clk_bulk_get(struct device *dev, struct clk_bulk_data **bulk) { struct property *prop; const char *name; struct clk_bulk_data *local; int i = 0, ret, count; count = of_property_count_strings(dev->of_node, "clock-names"); if (count < 1) return 0; local = devm_kcalloc(dev, sizeof(struct clk_bulk_data *), count, GFP_KERNEL); if (!local) return -ENOMEM; of_property_for_each_string(dev->of_node, "clock-names", prop, name) { local[i].id = devm_kstrdup(dev, name, GFP_KERNEL); if (!local[i].id) { devm_kfree(dev, local); return -ENOMEM; } i++; } ret = devm_clk_bulk_get(dev, count, local); if (ret) { for (i = 0; i < count; i++) devm_kfree(dev, (void *) local[i].id); devm_kfree(dev, local); return ret; } *bulk = local; return count; } 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) { dev_dbg(&pdev->dev, "failed to get memory resource: %s\n", name); return ERR_PTR(-EINVAL); } size = resource_size(res); ptr = devm_ioremap_nocache(&pdev->dev, res->start, size); if (!ptr) { dev_err(&pdev->dev, "failed to ioremap: %s\n", name); return ERR_PTR(-ENOMEM); } if (reglog) dev_dbg(&pdev->dev, "IO:region %s %pK %08lx\n", dbgname, ptr, size); return ptr; } unsigned long msm_iomap_size(struct platform_device *pdev, const char *name) { struct resource *res; if (name) res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name); else res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_dbg(&pdev->dev, "failed to get memory resource: %s\n", name); return 0; } return resource_size(res); } void msm_iounmap(struct platform_device *pdev, void __iomem *addr) { devm_iounmap(&pdev->dev, addr); } void msm_writel(u32 data, void __iomem *addr) { if (reglog) pr_debug("IO:W %pK %08x\n", addr, data); writel(data, addr); } u32 msm_readl(const void __iomem *addr) { u32 val = readl(addr); if (reglog) pr_err("IO:R %pK %08x\n", addr, val); return val; } struct vblank_work { struct kthread_work work; int crtc_id; bool enable; struct msm_drm_private *priv; }; static void vblank_ctrl_worker(struct kthread_work *work) { struct vblank_work *cur_work = container_of(work, struct vblank_work, work); struct msm_drm_private *priv = cur_work->priv; struct msm_kms *kms = priv->kms; if (cur_work->enable) kms->funcs->enable_vblank(kms, priv->crtcs[cur_work->crtc_id]); else kms->funcs->disable_vblank(kms, priv->crtcs[cur_work->crtc_id]); kfree(cur_work); } static int vblank_ctrl_queue_work(struct msm_drm_private *priv, int crtc_id, bool enable) { struct vblank_work *cur_work; struct drm_crtc *crtc; struct kthread_worker *worker; if (!priv || crtc_id >= priv->num_crtcs) return -EINVAL; cur_work = kzalloc(sizeof(*cur_work), GFP_ATOMIC); if (!cur_work) return -ENOMEM; crtc = priv->crtcs[crtc_id]; kthread_init_work(&cur_work->work, vblank_ctrl_worker); cur_work->crtc_id = crtc_id; cur_work->enable = enable; cur_work->priv = priv; worker = &priv->event_thread[crtc_id].worker; kthread_queue_work(worker, &cur_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; int i; /* clean up display commit/event worker threads */ for (i = 0; i < priv->num_crtcs; i++) { if (priv->disp_thread[i].thread) { kthread_flush_worker(&priv->disp_thread[i].worker); kthread_stop(priv->disp_thread[i].thread); priv->disp_thread[i].thread = NULL; } if (priv->event_thread[i].thread) { kthread_flush_worker(&priv->event_thread[i].worker); kthread_stop(priv->event_thread[i].thread); priv->event_thread[i].thread = NULL; } } #ifdef OPLUS_FEATURE_ADFR if (oplus_adfr_is_support()) { oplus_adfr_thread_destroy(priv); } #endif drm_kms_helper_poll_fini(ddev); drm_mode_config_cleanup(ddev); if (priv->registered) { drm_dev_unregister(ddev); priv->registered = false; } #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); flush_workqueue(priv->wq); destroy_workqueue(priv->wq); 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); sde_dbg_destroy(); debugfs_remove_recursive(priv->debug_root); sde_power_resource_deinit(pdev, &priv->phandle); msm_mdss_destroy(ddev); ddev->dev_private = NULL; kfree(priv); drm_dev_put(ddev); return 0; } #define KMS_MDP4 4 #define KMS_MDP5 5 #define KMS_SDE 3 static int get_mdp_ver(struct platform_device *pdev) { #ifdef CONFIG_OF static const struct of_device_id match_types[] = { { .compatible = "qcom,mdss_mdp", .data = (void *)KMS_MDP5, }, { .compatible = "qcom,sde-kms", .data = (void *)KMS_SDE, }, {}, }; struct device *dev = &pdev->dev; const struct of_device_id *match; match = of_match_node(match_types, dev->of_node); if (match) return (int)(unsigned long)match->data; #endif return KMS_MDP4; } 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 (!iommu_present(&platform_bus_type)) { 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) { dev_err(dev->dev, "failed to allocate VRAM\n"); priv->vram.paddr = 0; return -ENOMEM; } dev_info(dev->dev, "VRAM: %08x->%08x\n", (uint32_t)priv->vram.paddr, (uint32_t)(priv->vram.paddr + size)); } return ret; } #ifdef CONFIG_OF static int msm_component_bind_all(struct device *dev, struct drm_device *drm_dev) { int ret; ret = component_bind_all(dev, drm_dev); if (ret) DRM_ERROR("component_bind_all failed: %d\n", ret); return ret; } #else static int msm_component_bind_all(struct device *dev, struct drm_device *drm_dev) { return 0; } #endif static int msm_drm_display_thread_create(struct sched_param param, struct msm_drm_private *priv, struct drm_device *ddev, struct device *dev) { int i, ret = 0; /** * 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 display thread */ priv->disp_thread[i].crtc_id = priv->crtcs[i]->base.id; kthread_init_worker(&priv->disp_thread[i].worker); priv->disp_thread[i].dev = ddev; priv->disp_thread[i].thread = kthread_run(kthread_worker_fn, &priv->disp_thread[i].worker, "crtc_commit:%d", priv->disp_thread[i].crtc_id); ret = sched_setscheduler(priv->disp_thread[i].thread, SCHED_FIFO, ¶m); if (ret) pr_warn("display thread priority update failed: %d\n", ret); if (IS_ERR(priv->disp_thread[i].thread)) { dev_err(dev, "failed to create crtc_commit kthread\n"); priv->disp_thread[i].thread = NULL; } /* 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); /** * event thread should also run at same priority as disp_thread * because it is handling frame_done events. A lower priority * event thread and higher priority disp_thread can causes * frame_pending counters beyond 2. This can lead to commit * failure at crtc commit level. */ ret = sched_setscheduler(priv->event_thread[i].thread, SCHED_FIFO, ¶m); if (ret) pr_warn("display event thread priority update failed: %d\n", ret); if (IS_ERR(priv->event_thread[i].thread)) { dev_err(dev, "failed to create crtc_event kthread\n"); priv->event_thread[i].thread = NULL; } if ((!priv->disp_thread[i].thread) || !priv->event_thread[i].thread) { /* clean up previously created threads if any */ for ( ; i >= 0; i--) { if (priv->disp_thread[i].thread) { kthread_stop( priv->disp_thread[i].thread); priv->disp_thread[i].thread = NULL; } if (priv->event_thread[i].thread) { kthread_stop( priv->event_thread[i].thread); priv->event_thread[i].thread = NULL; } } return -EINVAL; } } /** * Since pp interrupt is heavy weight, try to queue the work * into a dedicated worker thread, so that they dont interrupt * other important events. */ kthread_init_worker(&priv->pp_event_worker); priv->pp_event_thread = kthread_run(kthread_worker_fn, &priv->pp_event_worker, "pp_event"); ret = sched_setscheduler(priv->pp_event_thread, SCHED_FIFO, ¶m); if (ret) pr_warn("pp_event thread priority update failed: %d\n", ret); if (IS_ERR(priv->pp_event_thread)) { dev_err(dev, "failed to create pp_event kthread\n"); ret = PTR_ERR(priv->pp_event_thread); priv->pp_event_thread = NULL; return ret; } #ifdef OPLUS_FEATURE_ADFR /** * Use a seperate adfr thread for fake frame. * Because fake frame maybe causes crtc commit/event more heavy. * This can lead to commit miss TE/retire event delay */ if (oplus_adfr_is_support()) { if (oplus_adfr_thread_create(¶m, priv, ddev, dev)) { return -EINVAL; } } #endif return 0; } static struct msm_kms *_msm_drm_init_helper(struct msm_drm_private *priv, struct drm_device *ddev, struct device *dev, struct platform_device *pdev) { int ret; struct msm_kms *kms; switch (get_mdp_ver(pdev)) { case KMS_MDP4: kms = mdp4_kms_init(ddev); break; case KMS_MDP5: kms = mdp5_kms_init(ddev); break; case KMS_SDE: kms = sde_kms_init(ddev); break; default: kms = ERR_PTR(-ENODEV); break; } if (IS_ERR_OR_NULL(kms)) { /* * NOTE: once we have GPU support, having no kms should not * be considered fatal.. ideally we would still support gpu * and (for example) use dmabuf/prime to share buffers with * imx drm driver on iMX5 */ dev_err(dev, "failed to load kms\n"); return kms; } priv->kms = kms; pm_runtime_enable(dev); /** * Since kms->funcs->hw_init(kms) might call * drm_object_property_set_value to initialize some custom * properties we need to make sure mode_config.funcs are populated * beforehand to avoid dereferencing an unset value during the * drm_drv_uses_atomic_modeset check. */ ddev->mode_config.funcs = &mode_config_funcs; ret = (kms)->funcs->hw_init(kms); if (ret) { dev_err(dev, "kms hw init failed: %d\n", ret); return ERR_PTR(ret); } return kms; } static ssize_t idle_encoder_mask_store(struct device *device, struct device_attribute *attr, const char *buf, size_t count) { struct drm_device *ddev = dev_get_drvdata(device); struct msm_drm_private *priv = ddev->dev_private; struct msm_idle *idle = &priv->idle; u32 encoder_mask = 0; int rc; unsigned long flags; rc = kstrtouint(buf, 0, &encoder_mask); if (rc) return rc; spin_lock_irqsave(&idle->lock, flags); idle->encoder_mask = encoder_mask; idle->active_mask &= encoder_mask; spin_unlock_irqrestore(&idle->lock, flags); return count; } static ssize_t idle_encoder_mask_show(struct device *device, struct device_attribute *attr, char *buf) { struct drm_device *ddev = dev_get_drvdata(device); struct msm_drm_private *priv = ddev->dev_private; struct msm_idle *idle = &priv->idle; return snprintf(buf, PAGE_SIZE, "0x%x\n", idle->encoder_mask); } static ssize_t idle_timeout_ms_store(struct device *device, struct device_attribute *attr, const char *buf, size_t count) { struct drm_device *ddev = dev_get_drvdata(device); struct msm_drm_private *priv = ddev->dev_private; struct msm_idle *idle = &priv->idle; u32 timeout_ms = 0; int rc; unsigned long flags; rc = kstrtouint(buf, 10, &timeout_ms); if (rc) return rc; spin_lock_irqsave(&idle->lock, flags); idle->timeout_ms = timeout_ms; spin_unlock_irqrestore(&idle->lock, flags); return count; } static ssize_t idle_timeout_ms_show(struct device *device, struct device_attribute *attr, char *buf) { struct drm_device *ddev = dev_get_drvdata(device); struct msm_drm_private *priv = ddev->dev_private; struct msm_idle *idle = &priv->idle; return scnprintf(buf, PAGE_SIZE, "%d\n", idle->timeout_ms); } static ssize_t idle_state_show(struct device *device, struct device_attribute *attr, char *buf) { struct drm_device *ddev = dev_get_drvdata(device); struct msm_drm_private *priv = ddev->dev_private; struct msm_idle *idle = &priv->idle; const char *state; unsigned long flags; spin_lock_irqsave(&idle->lock, flags); if (idle->active_mask) { state = "active"; spin_unlock_irqrestore(&idle->lock, flags); return scnprintf(buf, PAGE_SIZE, "%s (0x%x)\n", state, idle->active_mask); } else if (delayed_work_pending(&idle->work)) state = "pending"; else state = "idle"; spin_unlock_irqrestore(&idle->lock, flags); return scnprintf(buf, PAGE_SIZE, "%s\n", state); } static DEVICE_ATTR_RW(idle_encoder_mask); static DEVICE_ATTR_RW(idle_timeout_ms); static DEVICE_ATTR_RO(idle_state); static const struct attribute *msm_idle_attrs[] = { &dev_attr_idle_encoder_mask.attr, &dev_attr_idle_timeout_ms.attr, &dev_attr_idle_state.attr, NULL }; static void msm_idle_work(struct work_struct *work) { struct delayed_work *dw = to_delayed_work(work); struct msm_idle *idle = container_of(dw, struct msm_idle, work); struct msm_drm_private *priv = container_of(idle, struct msm_drm_private, idle); if (!idle->active_mask) sysfs_notify(&priv->dev->dev->kobj, NULL, "idle_state"); } void msm_idle_set_state(struct drm_encoder *encoder, bool active) { struct drm_device *ddev = encoder->dev; struct msm_drm_private *priv = ddev->dev_private; struct msm_idle *idle = &priv->idle; unsigned int mask = 1 << drm_encoder_index(encoder); unsigned long flags; spin_lock_irqsave(&idle->lock, flags); if (mask & idle->encoder_mask) { if (active) idle->active_mask |= mask; else idle->active_mask &= ~mask; if (idle->timeout_ms && !idle->active_mask) mod_delayed_work(system_wq, &idle->work, msecs_to_jiffies(idle->timeout_ms)); else cancel_delayed_work(&idle->work); } spin_unlock_irqrestore(&idle->lock, flags); } static void msm_idle_init(struct drm_device *ddev) { struct msm_drm_private *priv = ddev->dev_private; struct msm_idle *idle = &priv->idle; if (sysfs_create_files(&ddev->dev->kobj, msm_idle_attrs) < 0) pr_warn("failed to create idle state file"); idle->active_mask = 0; idle->encoder_mask = IDLE_ENCODER_MASK_DEFAULT; idle->timeout_ms = IDLE_TIMEOUT_MS_DEFAULT; INIT_DELAYED_WORK(&idle->work, msm_idle_work); spin_lock_init(&idle->lock); } 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 = NULL; int ret; struct sched_param param = { 0 }; struct drm_crtc *crtc; ddev = drm_dev_alloc(drv, dev); if (!ddev) { dev_err(dev, "failed to allocate drm_device\n"); return -ENOMEM; } drm_mode_config_init(ddev); platform_set_drvdata(pdev, ddev); priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) { ret = -ENOMEM; goto priv_alloc_fail; } ddev->dev_private = priv; priv->dev = ddev; ret = msm_mdss_init(ddev); if (ret) goto mdss_init_fail; priv->wq = alloc_ordered_workqueue("msm_drm", 0); init_waitqueue_head(&priv->pending_crtcs_event); INIT_LIST_HEAD(&priv->client_event_list); INIT_LIST_HEAD(&priv->inactive_list); ret = sde_power_resource_init(pdev, &priv->phandle); if (ret) { pr_err("sde power resource init failed\n"); goto power_init_fail; } ret = sde_dbg_init(&pdev->dev); if (ret) { dev_err(dev, "failed to init sde dbg: %d\n", ret); goto dbg_init_fail; } msm_idle_init(ddev); /* Bind all our sub-components: */ ret = msm_component_bind_all(dev, ddev); if (ret) goto bind_fail; ret = msm_init_vram(ddev); if (ret) goto fail; ddev->mode_config.funcs = &mode_config_funcs; ddev->mode_config.helper_private = &mode_config_helper_funcs; kms = _msm_drm_init_helper(priv, ddev, dev, pdev); if (IS_ERR_OR_NULL(kms)) { dev_err(dev, "msm_drm_init_helper failed\n"); goto fail; } ret = msm_drm_display_thread_create(param, priv, ddev, dev); if (ret) { dev_err(dev, "msm_drm_display_thread_create failed\n"); goto fail; } ret = drm_vblank_init(ddev, priv->num_crtcs); if (ret < 0) { dev_err(dev, "failed to initialize vblank\n"); goto fail; } drm_for_each_crtc(crtc, ddev) drm_crtc_vblank_reset(crtc); if (kms) { pm_runtime_get_sync(dev); ret = drm_irq_install(ddev, platform_get_irq(pdev, 0)); pm_runtime_put_sync(dev); if (ret < 0) { dev_err(dev, "failed to install IRQ handler\n"); goto fail; } } ret = drm_dev_register(ddev, 0); if (ret) goto fail; priv->registered = true; drm_mode_config_reset(ddev); if (kms && kms->funcs && kms->funcs->cont_splash_config) { ret = kms->funcs->cont_splash_config(kms); if (ret) { dev_err(dev, "kms cont_splash config failed.\n"); goto fail; } } #ifdef CONFIG_DRM_FBDEV_EMULATION if (fbdev) priv->fbdev = msm_fbdev_init(ddev); #endif ret = sde_dbg_debugfs_register(dev); if (ret) { dev_err(dev, "failed to reg sde dbg debugfs: %d\n", ret); goto fail; } /* perform subdriver post initialization */ if (kms && kms->funcs && kms->funcs->postinit) { ret = kms->funcs->postinit(kms); if (ret) { pr_err("kms post init failed: %d\n", ret); goto fail; } } drm_kms_helper_poll_init(ddev); return 0; fail: msm_drm_uninit(dev); return ret; bind_fail: sde_dbg_destroy(); dbg_init_fail: sde_power_resource_deinit(pdev, &priv->phandle); power_init_fail: msm_mdss_destroy(ddev); mdss_init_fail: kfree(priv); priv_alloc_fail: drm_dev_put(ddev); platform_set_drvdata(pdev, NULL); return ret; } /* * DRM operations: */ static int context_init(struct drm_device *dev, struct drm_file *file) { struct msm_file_private *ctx; ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; mutex_init(&ctx->power_lock); file->driver_priv = ctx; if (dev && dev->dev_private) { struct msm_drm_private *priv = dev->dev_private; struct msm_kms *kms; kms = priv->kms; if (kms && kms->funcs && kms->funcs->postopen) kms->funcs->postopen(kms, file); } return 0; } static int msm_open(struct drm_device *dev, struct drm_file *file) { return context_init(dev, file); } static void context_close(struct msm_file_private *ctx) { kfree(ctx); } static void msm_preclose(struct drm_device *dev, struct drm_file *file) { struct msm_drm_private *priv = dev->dev_private; struct msm_kms *kms = priv->kms; if (kms && kms->funcs && kms->funcs->preclose) kms->funcs->preclose(kms, file); } 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; struct msm_kms *kms = priv->kms; if (kms && kms->funcs && kms->funcs->postclose) kms->funcs->postclose(kms, file); mutex_lock(&dev->struct_mutex); if (ctx == priv->lastctx) priv->lastctx = NULL; mutex_unlock(&dev->struct_mutex); mutex_lock(&ctx->power_lock); if (ctx->enable_refcnt) { SDE_EVT32(ctx->enable_refcnt); pm_runtime_put_sync(dev->dev); } mutex_unlock(&ctx->power_lock); context_close(ctx); } static int msm_disable_all_modes_commit( struct drm_device *dev, struct drm_atomic_state *state) { struct drm_plane *plane; struct drm_crtc *crtc; unsigned int plane_mask; int ret; plane_mask = 0; drm_for_each_plane(plane, dev) { struct drm_plane_state *plane_state; plane_state = drm_atomic_get_plane_state(state, plane); if (IS_ERR(plane_state)) { ret = PTR_ERR(plane_state); goto fail; } plane_state->rotation = 0; plane->old_fb = plane->fb; plane_mask |= 1 << drm_plane_index(plane); /* disable non-primary: */ if (plane->type == DRM_PLANE_TYPE_PRIMARY) continue; DRM_DEBUG("disabling plane %d\n", plane->base.id); ret = __drm_atomic_helper_disable_plane(plane, plane_state); if (ret != 0) DRM_ERROR("error %d disabling plane %d\n", ret, plane->base.id); } drm_for_each_crtc(crtc, dev) { struct drm_mode_set mode_set; memset(&mode_set, 0, sizeof(struct drm_mode_set)); mode_set.crtc = crtc; DRM_DEBUG("disabling crtc %d\n", crtc->base.id); ret = __drm_atomic_helper_set_config(&mode_set, state); if (ret != 0) DRM_ERROR("error %d disabling crtc %d\n", ret, crtc->base.id); } DRM_DEBUG("committing disables\n"); ret = drm_atomic_commit(state); fail: DRM_DEBUG("disables result %d\n", ret); return ret; } /** * msm_clear_all_modes - disables all planes and crtcs via an atomic commit * based on restore_fbdev_mode_atomic in drm_fb_helper.c * @dev: device pointer * @Return: 0 on success, otherwise -error */ static int msm_disable_all_modes( struct drm_device *dev, struct drm_modeset_acquire_ctx *ctx) { struct drm_atomic_state *state; int ret, i; state = drm_atomic_state_alloc(dev); if (!state) return -ENOMEM; state->acquire_ctx = ctx; for (i = 0; i < TEARDOWN_DEADLOCK_RETRY_MAX; i++) { ret = msm_disable_all_modes_commit(dev, state); if (ret != -EDEADLK || ret != -ERESTARTSYS) break; drm_atomic_state_clear(state); drm_modeset_backoff(ctx); } drm_atomic_state_put(state); return ret; } static void msm_lastclose(struct drm_device *dev) { struct msm_drm_private *priv = dev->dev_private; struct msm_kms *kms = priv->kms; struct drm_modeset_acquire_ctx ctx; int i, rc; /* check for splash status before triggering cleanup * if we end up here with splash status ON i.e before first * commit then ignore the last close call. Also, ignore * if kms module is not yet initialized. */ if (!kms || (kms && kms->funcs && kms->funcs->check_for_splash && kms->funcs->check_for_splash(kms, NULL))) return; /* * clean up vblank disable immediately as this is the last close. */ for (i = 0; i < dev->num_crtcs; i++) { struct drm_vblank_crtc *vblank = &dev->vblank[i]; struct timer_list *disable_timer = &vblank->disable_timer; if (del_timer_sync(disable_timer)) disable_timer->function(disable_timer); } /* wait for pending vblank requests to be executed by worker thread */ flush_workqueue(priv->wq); if (priv->fbdev) { drm_fb_helper_restore_fbdev_mode_unlocked(priv->fbdev); return; } drm_modeset_acquire_init(&ctx, 0); retry: rc = drm_modeset_lock_all_ctx(dev, &ctx); if (rc) goto fail; rc = msm_disable_all_modes(dev, &ctx); if (rc) goto fail; if (kms && kms->funcs && kms->funcs->lastclose) kms->funcs->lastclose(kms, &ctx); fail: if (rc == -EDEADLK) { drm_modeset_backoff(&ctx); goto retry; } else if (rc) { pr_err("last close failed: %d\n", rc); } drm_modeset_drop_locks(&ctx); drm_modeset_acquire_fini(&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); return kms->funcs->irq_postinstall(kms); } 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); } static int msm_enable_vblank(struct drm_device *dev, unsigned int pipe) { struct msm_drm_private *priv = dev->dev_private; struct msm_kms *kms = priv->kms; if (!kms) return -ENXIO; DBG("dev=%pK, crtc=%u", dev, pipe); return vblank_ctrl_queue_work(priv, pipe, true); } static void msm_disable_vblank(struct drm_device *dev, unsigned int pipe) { struct msm_drm_private *priv = dev->dev_private; struct msm_kms *kms = priv->kms; if (!kms) return; DBG("dev=%pK, crtc=%u", dev, pipe); vblank_ctrl_queue_work(priv, pipe, false); } /* * DRM ioctls: */ 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); } 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_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_drm_object_supports_event(struct drm_device *dev, struct drm_msm_event_req *req) { int ret = -EINVAL; struct drm_mode_object *arg_obj; arg_obj = drm_mode_object_find(dev, NULL, req->object_id, req->object_type); if (!arg_obj) return -ENOENT; switch (arg_obj->type) { case DRM_MODE_OBJECT_CRTC: case DRM_MODE_OBJECT_CONNECTOR: ret = 0; break; default: ret = -EOPNOTSUPP; break; } drm_mode_object_put(arg_obj); return ret; } static int msm_register_event(struct drm_device *dev, struct drm_msm_event_req *req, struct drm_file *file, bool en) { int ret = -EINVAL; struct msm_drm_private *priv = dev->dev_private; struct msm_kms *kms = priv->kms; struct drm_mode_object *arg_obj; arg_obj = drm_mode_object_find(dev, file, req->object_id, req->object_type); if (!arg_obj) return -ENOENT; ret = kms->funcs->register_events(kms, arg_obj, req->event, en); drm_mode_object_put(arg_obj); return ret; } static int msm_event_client_count(struct drm_device *dev, struct drm_msm_event_req *req_event, bool locked) { struct msm_drm_private *priv = dev->dev_private; unsigned long flag = 0; struct msm_drm_event *node; int count = 0; if (!locked) spin_lock_irqsave(&dev->event_lock, flag); list_for_each_entry(node, &priv->client_event_list, base.link) { if (node->event.base.type == req_event->event && node->event.info.object_id == req_event->object_id) count++; } if (!locked) spin_unlock_irqrestore(&dev->event_lock, flag); return count; } static int msm_ioctl_register_event(struct drm_device *dev, void *data, struct drm_file *file) { struct msm_drm_private *priv = dev->dev_private; struct drm_msm_event_req *req_event = data; struct msm_drm_event *client, *node; unsigned long flag = 0; bool dup_request = false; int ret = 0, count = 0; ret = msm_drm_object_supports_event(dev, req_event); if (ret) { DRM_ERROR("unsupported event %x object %x object id %d\n", req_event->event, req_event->object_type, req_event->object_id); return ret; } spin_lock_irqsave(&dev->event_lock, flag); list_for_each_entry(node, &priv->client_event_list, base.link) { if (node->base.file_priv != file) continue; if (node->event.base.type == req_event->event && node->event.info.object_id == req_event->object_id) { DRM_DEBUG("duplicate request for event %x obj id %d\n", node->event.base.type, node->event.info.object_id); dup_request = true; break; } } spin_unlock_irqrestore(&dev->event_lock, flag); if (dup_request) return -EALREADY; client = kzalloc(sizeof(*client), GFP_KERNEL); if (!client) return -ENOMEM; client->base.file_priv = file; client->base.event = &client->event.base; client->event.base.type = req_event->event; memcpy(&client->event.info, req_event, sizeof(client->event.info)); /* Get the count of clients that have registered for event. * Event should be enabled for first client, for subsequent enable * calls add to client list and return. */ count = msm_event_client_count(dev, req_event, false); if (count) { /* Add current client to list */ spin_lock_irqsave(&dev->event_lock, flag); list_add_tail(&client->base.link, &priv->client_event_list); spin_unlock_irqrestore(&dev->event_lock, flag); return 0; } ret = msm_register_event(dev, req_event, file, true); if (ret) { DRM_ERROR("failed to enable event %x object %x object id %d\n", req_event->event, req_event->object_type, req_event->object_id); kfree(client); } else { /* Add current client to list */ spin_lock_irqsave(&dev->event_lock, flag); list_add_tail(&client->base.link, &priv->client_event_list); spin_unlock_irqrestore(&dev->event_lock, flag); } return ret; } static int msm_ioctl_deregister_event(struct drm_device *dev, void *data, struct drm_file *file) { struct msm_drm_private *priv = dev->dev_private; struct drm_msm_event_req *req_event = data; struct msm_drm_event *client = NULL, *node, *temp; unsigned long flag = 0; int count = 0; bool found = false; int ret = 0; ret = msm_drm_object_supports_event(dev, req_event); if (ret) { DRM_ERROR("unsupported event %x object %x object id %d\n", req_event->event, req_event->object_type, req_event->object_id); return ret; } spin_lock_irqsave(&dev->event_lock, flag); list_for_each_entry_safe(node, temp, &priv->client_event_list, base.link) { if (node->event.base.type == req_event->event && node->event.info.object_id == req_event->object_id && node->base.file_priv == file) { client = node; list_del(&client->base.link); found = true; kfree(client); break; } } spin_unlock_irqrestore(&dev->event_lock, flag); if (!found) return -ENOENT; count = msm_event_client_count(dev, req_event, false); if (!count) ret = msm_register_event(dev, req_event, file, false); return ret; } void msm_mode_object_event_notify(struct drm_mode_object *obj, struct drm_device *dev, struct drm_event *event, u8 *payload) { struct msm_drm_private *priv = NULL; unsigned long flags; struct msm_drm_event *notify, *node; int len = 0, ret; if (!obj || !event || !event->length || !payload) { DRM_ERROR("err param obj %pK event %pK len %d payload %pK\n", obj, event, ((event) ? (event->length) : -1), payload); return; } priv = (dev) ? dev->dev_private : NULL; if (!dev || !priv) { DRM_ERROR("invalid dev %pK priv %pK\n", dev, priv); return; } spin_lock_irqsave(&dev->event_lock, flags); list_for_each_entry(node, &priv->client_event_list, base.link) { if (node->event.base.type != event->type || obj->id != node->event.info.object_id) continue; len = event->length + sizeof(struct msm_drm_event); if (node->base.file_priv->event_space < len) { DRM_ERROR("Insufficient space %d for event %x len %d\n", node->base.file_priv->event_space, event->type, len); continue; } notify = kzalloc(len, GFP_ATOMIC); if (!notify) continue; notify->base.file_priv = node->base.file_priv; notify->base.event = ¬ify->event.base; notify->event.base.type = node->event.base.type; notify->event.base.length = event->length + sizeof(struct drm_msm_event_resp); memcpy(¬ify->event.info, &node->event.info, sizeof(notify->event.info)); memcpy(notify->event.data, payload, event->length); ret = drm_event_reserve_init_locked(dev, node->base.file_priv, ¬ify->base, ¬ify->event.base); if (ret) { kfree(notify); continue; } drm_send_event_locked(dev, ¬ify->base); } spin_unlock_irqrestore(&dev->event_lock, flags); } static int msm_release(struct inode *inode, struct file *filp) { struct drm_file *file_priv; struct drm_minor *minor; struct drm_device *dev; struct msm_drm_private *priv; struct msm_drm_event *node, *temp, *tmp_node; u32 count; unsigned long flags; LIST_HEAD(tmp_head); int ret = 0; mutex_lock(&msm_release_lock); file_priv = filp->private_data; if (!file_priv) { ret = -EINVAL; goto end; } minor = file_priv->minor; dev = minor->dev; priv = dev->dev_private; spin_lock_irqsave(&dev->event_lock, flags); list_for_each_entry_safe(node, temp, &priv->client_event_list, base.link) { if (node->base.file_priv != file_priv) continue; list_del(&node->base.link); list_add_tail(&node->base.link, &tmp_head); } spin_unlock_irqrestore(&dev->event_lock, flags); list_for_each_entry_safe(node, temp, &tmp_head, base.link) { list_del(&node->base.link); count = msm_event_client_count(dev, &node->event.info, false); list_for_each_entry(tmp_node, &tmp_head, base.link) { if (tmp_node->event.base.type == node->event.info.event && tmp_node->event.info.object_id == node->event.info.object_id) count++; } if (!count) msm_register_event(dev, &node->event.info, file_priv, false); kfree(node); } /** * Handle preclose operation here for removing fb's whose * refcount > 1. This operation is not triggered from upstream * drm as msm_driver does not support DRIVER_LEGACY feature. */ msm_preclose(dev, file_priv); ret = drm_release(inode, filp); filp->private_data = NULL; end: mutex_unlock(&msm_release_lock); return ret; } /** * msm_ioctl_rmfb2 - remove an FB from the configuration * @dev: drm device for the ioctl * @data: data pointer for the ioctl * @file_priv: drm file for the ioctl call * * Remove the FB specified by the user. * * Called by the user via ioctl. * * Returns: * Zero on success, negative errno on failure. */ int msm_ioctl_rmfb2(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_framebuffer *fb = NULL; struct drm_framebuffer *fbl = NULL; uint32_t *id = data; int found = 0; if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EINVAL; fb = drm_framebuffer_lookup(dev, file_priv, *id); if (!fb) return -ENOENT; /* drop extra ref from traversing drm_framebuffer_lookup */ drm_framebuffer_put(fb); mutex_lock(&file_priv->fbs_lock); list_for_each_entry(fbl, &file_priv->fbs, filp_head) if (fb == fbl) found = 1; if (!found) { mutex_unlock(&file_priv->fbs_lock); return -ENOENT; } list_del_init(&fb->filp_head); mutex_unlock(&file_priv->fbs_lock); drm_framebuffer_put(fb); return 0; } EXPORT_SYMBOL(msm_ioctl_rmfb2); /** * msm_ioctl_power_ctrl - enable/disable power vote on MDSS Hw * @dev: drm device for the ioctl * @data: data pointer for the ioctl * @file_priv: drm file for the ioctl call * */ int msm_ioctl_power_ctrl(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct msm_file_private *ctx = file_priv->driver_priv; struct msm_drm_private *priv; struct drm_msm_power_ctrl *power_ctrl = data; bool vote_req = false; int old_cnt; int rc = 0; if (unlikely(!power_ctrl)) { DRM_ERROR("invalid ioctl data\n"); return -EINVAL; } priv = dev->dev_private; mutex_lock(&ctx->power_lock); old_cnt = ctx->enable_refcnt; if (power_ctrl->enable) { if (!ctx->enable_refcnt) vote_req = true; ctx->enable_refcnt++; } else if (ctx->enable_refcnt) { ctx->enable_refcnt--; if (!ctx->enable_refcnt) vote_req = true; } else { pr_err("ignoring, unbalanced disable\n"); } mutex_lock(&priv->phandle.ext_client_lock); if (vote_req) { if (power_ctrl->enable) { rc = pm_runtime_get_sync(dev->dev); priv->phandle.is_ext_vote_en = true; } else { pm_runtime_put_sync(dev->dev); priv->phandle.is_ext_vote_en = false; } if (rc < 0) ctx->enable_refcnt = old_cnt; else rc = 0; } mutex_unlock(&priv->phandle.ext_client_lock); pr_debug("pid %d enable %d, refcnt %d, vote_req %d\n", current->pid, power_ctrl->enable, ctx->enable_refcnt, vote_req); SDE_EVT32(current->pid, power_ctrl->enable, ctx->enable_refcnt, vote_req); mutex_unlock(&ctx->power_lock); return rc; } static const struct drm_ioctl_desc msm_ioctls[] = { DRM_IOCTL_DEF_DRV(MSM_GEM_NEW, msm_ioctl_gem_new, DRM_AUTH|DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_PREP, msm_ioctl_gem_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_FINI, msm_ioctl_gem_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_GEM_MADVISE, msm_ioctl_gem_madvise, DRM_AUTH|DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(SDE_WB_CONFIG, sde_wb_config, DRM_UNLOCKED|DRM_AUTH), DRM_IOCTL_DEF_DRV(MSM_REGISTER_EVENT, msm_ioctl_register_event, DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(MSM_DEREGISTER_EVENT, msm_ioctl_deregister_event, DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(MSM_RMFB2, msm_ioctl_rmfb2, DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(MSM_POWER_CTRL, msm_ioctl_power_ctrl, DRM_RENDER_ALLOW), #if defined(OPLUS_FEATURE_PXLW_IRIS5) || defined(CONFIG_PXLW_SOFT_IRIS) DRM_IOCTL_DEF_DRV(MSM_IRIS_OPERATE_CONF, msm_ioctl_iris_operate_conf, DRM_UNLOCKED|DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(MSM_IRIS_OPERATE_TOOL, msm_ioctl_iris_operate_tool, DRM_UNLOCKED|DRM_RENDER_ALLOW), #endif }; 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 = msm_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_HAVE_IRQ | DRIVER_GEM | DRIVER_PRIME | DRIVER_RENDER | DRIVER_ATOMIC | DRIVER_MODESET, .open = msm_open, .postclose = msm_postclose, .lastclose = msm_lastclose, .irq_handler = msm_irq, .irq_preinstall = msm_irq_preinstall, .irq_postinstall = msm_irq_postinstall, .irq_uninstall = msm_irq_uninstall, .enable_vblank = msm_enable_vblank, .disable_vblank = msm_disable_vblank, .gem_free_object = 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_export = drm_gem_prime_export, .gem_prime_import = msm_gem_prime_import, .gem_prime_res_obj = msm_gem_prime_res_obj, .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, .ioctls = msm_ioctls, .num_ioctls = ARRAY_SIZE(msm_ioctls), .fops = &fops, .name = "msm_drm", .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; struct msm_drm_private *priv; struct msm_kms *kms; if (!dev) return -EINVAL; ddev = dev_get_drvdata(dev); if (!ddev || !ddev->dev_private) return -EINVAL; priv = ddev->dev_private; kms = priv->kms; if (kms && kms->funcs && kms->funcs->pm_suspend) return kms->funcs->pm_suspend(dev); /* disable hot-plug polling */ drm_kms_helper_poll_disable(ddev); return 0; } static int msm_pm_resume(struct device *dev) { struct drm_device *ddev; struct msm_drm_private *priv; struct msm_kms *kms; if (!dev) return -EINVAL; ddev = dev_get_drvdata(dev); if (!ddev || !ddev->dev_private) return -EINVAL; priv = ddev->dev_private; kms = priv->kms; if (kms && kms->funcs && kms->funcs->pm_resume) return kms->funcs->pm_resume(dev); /* enable hot-plug polling */ drm_kms_helper_poll_enable(ddev); return 0; } #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; DBG(""); if (priv->mdss) msm_mdss_disable(priv->mdss); else sde_power_resource_enable(&priv->phandle, false); 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; int ret; DBG(""); if (priv->mdss) ret = msm_mdss_enable(priv->mdss); else ret = sde_power_resource_enable(&priv->phandle, true); return ret; } #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) { dev_err(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 (strnstr(dev_name(dev), "mdp", strlen("mdp")) != NULL); } static int add_display_components(struct device *dev, struct component_match **matchptr) { struct device *mdp_dev = NULL; struct device_node *node; int ret; if (of_device_is_compatible(dev->of_node, "qcom,sde-kms")) { struct device_node *np = dev->of_node; unsigned int i; for (i = 0; ; i++) { node = of_parse_phandle(np, "connectors", i); if (!node) break; component_match_add(dev, matchptr, compare_of, node); } return 0; } /* * MDP5 based devices don't have a flat hierarchy. There is a top level * parent: MDSS, and children: MDP5, DSI, HDMI, eDP etc. Populate the * children devices, find the MDP5 node, and then add the interfaces * to our components list. */ if (of_device_is_compatible(dev->of_node, "qcom,mdss")) { ret = of_platform_populate(dev->of_node, NULL, NULL, dev); if (ret) { dev_err(dev, "failed to populate children devices\n"); return ret; } mdp_dev = device_find_child(dev, NULL, compare_name_mdp); if (!mdp_dev) { dev_err(dev, "failed to find MDSS MDP node\n"); of_platform_depopulate(dev); return -ENODEV; } put_device(mdp_dev); /* add the MDP component itself */ 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; } struct msm_gem_address_space * msm_gem_smmu_address_space_get(struct drm_device *dev, unsigned int domain) { struct msm_drm_private *priv = NULL; struct msm_kms *kms; const struct msm_kms_funcs *funcs; if ((!dev) || (!dev->dev_private)) return NULL; priv = dev->dev_private; kms = priv->kms; if (!kms) return NULL; funcs = kms->funcs; if ((!funcs) || (!funcs->get_address_space)) return NULL; return funcs->get_address_space(priv->kms, domain); } int msm_get_mixer_count(struct msm_drm_private *priv, const struct drm_display_mode *mode, const struct msm_resource_caps_info *res, u32 *num_lm) { struct msm_kms *kms; const struct msm_kms_funcs *funcs; if (!priv) { DRM_ERROR("invalid drm private struct\n"); return -EINVAL; } kms = priv->kms; if (!kms) { DRM_ERROR("invalid msm kms struct\n"); return -EINVAL; } funcs = kms->funcs; if (!funcs || !funcs->get_mixer_count) { DRM_ERROR("invalid function pointers\n"); return -EINVAL; } return funcs->get_mixer_count(priv->kms, mode, res, num_lm); } 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) { int ret; struct component_match *match = NULL; ret = add_display_components(&pdev->dev, &match); if (ret) return ret; if (!match) return -ENODEV; pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); return component_master_add_with_match(&pdev->dev, &msm_drm_ops, match); } static int msm_pdev_remove(struct platform_device *pdev) { component_master_del(&pdev->dev, &msm_drm_ops); of_platform_depopulate(&pdev->dev); msm_drm_unbind(&pdev->dev); component_master_del(&pdev->dev, &msm_drm_ops); return 0; } static void msm_pdev_shutdown(struct platform_device *pdev) { struct drm_device *ddev = platform_get_drvdata(pdev); struct msm_drm_private *priv = NULL; if (!ddev) { DRM_ERROR("invalid drm device node\n"); return; } priv = ddev->dev_private; if (!priv) { DRM_ERROR("invalid msm drm private node\n"); return; } msm_lastclose(ddev); /* set this after lastclose to allow kickoff from lastclose */ priv->shutdown_in_progress = true; } static const struct of_device_id dt_match[] = { { .compatible = "qcom,mdp4", .data = (void *)KMS_MDP4 }, { .compatible = "qcom,mdss", .data = (void *)KMS_MDP5 }, { .compatible = "qcom,sde-kms", .data = (void *)KMS_SDE }, {}, }; MODULE_DEVICE_TABLE(of, dt_match); static struct platform_driver msm_platform_driver = { .probe = msm_pdev_probe, .remove = msm_pdev_remove, .shutdown = msm_pdev_shutdown, .driver = { .name = "msm_drm", .of_match_table = dt_match, .pm = &msm_pm_ops, .suppress_bind_attrs = true, }, }; static int __init msm_drm_register(void) { if (!modeset) return -EINVAL; DBG("init"); msm_smmu_driver_init(); msm_dsi_register(); msm_edp_register(); msm_hdmi_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(); msm_edp_unregister(); msm_dsi_unregister(); msm_smmu_driver_cleanup(); } module_init(msm_drm_register); module_exit(msm_drm_unregister); MODULE_AUTHOR("Rob Clark