1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2015-2018 Etnaviv Project
6 #include <linux/component.h>
7 #include <linux/of_platform.h>
8 #include <drm/drm_of.h>
10 #include "etnaviv_cmdbuf.h"
11 #include "etnaviv_drv.h"
12 #include "etnaviv_gpu.h"
13 #include "etnaviv_gem.h"
14 #include "etnaviv_mmu.h"
15 #include "etnaviv_perfmon.h"
22 static void load_gpu(struct drm_device *dev)
24 struct etnaviv_drm_private *priv = dev->dev_private;
27 for (i = 0; i < ETNA_MAX_PIPES; i++) {
28 struct etnaviv_gpu *g = priv->gpu[i];
33 ret = etnaviv_gpu_init(g);
40 static int etnaviv_open(struct drm_device *dev, struct drm_file *file)
42 struct etnaviv_drm_private *priv = dev->dev_private;
43 struct etnaviv_file_private *ctx;
46 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
50 for (i = 0; i < ETNA_MAX_PIPES; i++) {
51 struct etnaviv_gpu *gpu = priv->gpu[i];
54 drm_sched_entity_init(&gpu->sched,
55 &ctx->sched_entity[i],
56 &gpu->sched.sched_rq[DRM_SCHED_PRIORITY_NORMAL],
61 file->driver_priv = ctx;
66 static void etnaviv_postclose(struct drm_device *dev, struct drm_file *file)
68 struct etnaviv_drm_private *priv = dev->dev_private;
69 struct etnaviv_file_private *ctx = file->driver_priv;
72 for (i = 0; i < ETNA_MAX_PIPES; i++) {
73 struct etnaviv_gpu *gpu = priv->gpu[i];
76 mutex_lock(&gpu->lock);
77 if (gpu->lastctx == ctx)
79 mutex_unlock(&gpu->lock);
81 drm_sched_entity_fini(&gpu->sched,
82 &ctx->sched_entity[i]);
93 #ifdef CONFIG_DEBUG_FS
94 static int etnaviv_gem_show(struct drm_device *dev, struct seq_file *m)
96 struct etnaviv_drm_private *priv = dev->dev_private;
98 etnaviv_gem_describe_objects(priv, m);
103 static int etnaviv_mm_show(struct drm_device *dev, struct seq_file *m)
105 struct drm_printer p = drm_seq_file_printer(m);
107 read_lock(&dev->vma_offset_manager->vm_lock);
108 drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p);
109 read_unlock(&dev->vma_offset_manager->vm_lock);
114 static int etnaviv_mmu_show(struct etnaviv_gpu *gpu, struct seq_file *m)
116 struct drm_printer p = drm_seq_file_printer(m);
118 seq_printf(m, "Active Objects (%s):\n", dev_name(gpu->dev));
120 mutex_lock(&gpu->mmu->lock);
121 drm_mm_print(&gpu->mmu->mm, &p);
122 mutex_unlock(&gpu->mmu->lock);
127 static void etnaviv_buffer_dump(struct etnaviv_gpu *gpu, struct seq_file *m)
129 struct etnaviv_cmdbuf *buf = &gpu->buffer;
130 u32 size = buf->size;
131 u32 *ptr = buf->vaddr;
134 seq_printf(m, "virt %p - phys 0x%llx - free 0x%08x\n",
135 buf->vaddr, (u64)etnaviv_cmdbuf_get_pa(buf),
136 size - buf->user_size);
138 for (i = 0; i < size / 4; i++) {
142 seq_printf(m, "\t0x%p: ", ptr + i);
143 seq_printf(m, "%08x ", *(ptr + i));
148 static int etnaviv_ring_show(struct etnaviv_gpu *gpu, struct seq_file *m)
150 seq_printf(m, "Ring Buffer (%s): ", dev_name(gpu->dev));
152 mutex_lock(&gpu->lock);
153 etnaviv_buffer_dump(gpu, m);
154 mutex_unlock(&gpu->lock);
159 static int show_unlocked(struct seq_file *m, void *arg)
161 struct drm_info_node *node = (struct drm_info_node *) m->private;
162 struct drm_device *dev = node->minor->dev;
163 int (*show)(struct drm_device *dev, struct seq_file *m) =
164 node->info_ent->data;
169 static int show_each_gpu(struct seq_file *m, void *arg)
171 struct drm_info_node *node = (struct drm_info_node *) m->private;
172 struct drm_device *dev = node->minor->dev;
173 struct etnaviv_drm_private *priv = dev->dev_private;
174 struct etnaviv_gpu *gpu;
175 int (*show)(struct etnaviv_gpu *gpu, struct seq_file *m) =
176 node->info_ent->data;
180 for (i = 0; i < ETNA_MAX_PIPES; i++) {
193 static struct drm_info_list etnaviv_debugfs_list[] = {
194 {"gpu", show_each_gpu, 0, etnaviv_gpu_debugfs},
195 {"gem", show_unlocked, 0, etnaviv_gem_show},
196 { "mm", show_unlocked, 0, etnaviv_mm_show },
197 {"mmu", show_each_gpu, 0, etnaviv_mmu_show},
198 {"ring", show_each_gpu, 0, etnaviv_ring_show},
201 static int etnaviv_debugfs_init(struct drm_minor *minor)
203 struct drm_device *dev = minor->dev;
206 ret = drm_debugfs_create_files(etnaviv_debugfs_list,
207 ARRAY_SIZE(etnaviv_debugfs_list),
208 minor->debugfs_root, minor);
211 dev_err(dev->dev, "could not install etnaviv_debugfs_list\n");
223 static int etnaviv_ioctl_get_param(struct drm_device *dev, void *data,
224 struct drm_file *file)
226 struct etnaviv_drm_private *priv = dev->dev_private;
227 struct drm_etnaviv_param *args = data;
228 struct etnaviv_gpu *gpu;
230 if (args->pipe >= ETNA_MAX_PIPES)
233 gpu = priv->gpu[args->pipe];
237 return etnaviv_gpu_get_param(gpu, args->param, &args->value);
240 static int etnaviv_ioctl_gem_new(struct drm_device *dev, void *data,
241 struct drm_file *file)
243 struct drm_etnaviv_gem_new *args = data;
245 if (args->flags & ~(ETNA_BO_CACHED | ETNA_BO_WC | ETNA_BO_UNCACHED |
249 return etnaviv_gem_new_handle(dev, file, args->size,
250 args->flags, &args->handle);
253 #define TS(t) ((struct timespec){ \
254 .tv_sec = (t).tv_sec, \
255 .tv_nsec = (t).tv_nsec \
258 static int etnaviv_ioctl_gem_cpu_prep(struct drm_device *dev, void *data,
259 struct drm_file *file)
261 struct drm_etnaviv_gem_cpu_prep *args = data;
262 struct drm_gem_object *obj;
265 if (args->op & ~(ETNA_PREP_READ | ETNA_PREP_WRITE | ETNA_PREP_NOSYNC))
268 obj = drm_gem_object_lookup(file, args->handle);
272 ret = etnaviv_gem_cpu_prep(obj, args->op, &TS(args->timeout));
274 drm_gem_object_put_unlocked(obj);
279 static int etnaviv_ioctl_gem_cpu_fini(struct drm_device *dev, void *data,
280 struct drm_file *file)
282 struct drm_etnaviv_gem_cpu_fini *args = data;
283 struct drm_gem_object *obj;
289 obj = drm_gem_object_lookup(file, args->handle);
293 ret = etnaviv_gem_cpu_fini(obj);
295 drm_gem_object_put_unlocked(obj);
300 static int etnaviv_ioctl_gem_info(struct drm_device *dev, void *data,
301 struct drm_file *file)
303 struct drm_etnaviv_gem_info *args = data;
304 struct drm_gem_object *obj;
310 obj = drm_gem_object_lookup(file, args->handle);
314 ret = etnaviv_gem_mmap_offset(obj, &args->offset);
315 drm_gem_object_put_unlocked(obj);
320 static int etnaviv_ioctl_wait_fence(struct drm_device *dev, void *data,
321 struct drm_file *file)
323 struct drm_etnaviv_wait_fence *args = data;
324 struct etnaviv_drm_private *priv = dev->dev_private;
325 struct timespec *timeout = &TS(args->timeout);
326 struct etnaviv_gpu *gpu;
328 if (args->flags & ~(ETNA_WAIT_NONBLOCK))
331 if (args->pipe >= ETNA_MAX_PIPES)
334 gpu = priv->gpu[args->pipe];
338 if (args->flags & ETNA_WAIT_NONBLOCK)
341 return etnaviv_gpu_wait_fence_interruptible(gpu, args->fence,
345 static int etnaviv_ioctl_gem_userptr(struct drm_device *dev, void *data,
346 struct drm_file *file)
348 struct drm_etnaviv_gem_userptr *args = data;
351 if (args->flags & ~(ETNA_USERPTR_READ|ETNA_USERPTR_WRITE) ||
355 if (offset_in_page(args->user_ptr | args->user_size) ||
356 (uintptr_t)args->user_ptr != args->user_ptr ||
357 (u32)args->user_size != args->user_size ||
358 args->user_ptr & ~PAGE_MASK)
361 if (args->flags & ETNA_USERPTR_WRITE)
362 access = VERIFY_WRITE;
364 access = VERIFY_READ;
366 if (!access_ok(access, (void __user *)(unsigned long)args->user_ptr,
370 return etnaviv_gem_new_userptr(dev, file, args->user_ptr,
371 args->user_size, args->flags,
375 static int etnaviv_ioctl_gem_wait(struct drm_device *dev, void *data,
376 struct drm_file *file)
378 struct etnaviv_drm_private *priv = dev->dev_private;
379 struct drm_etnaviv_gem_wait *args = data;
380 struct timespec *timeout = &TS(args->timeout);
381 struct drm_gem_object *obj;
382 struct etnaviv_gpu *gpu;
385 if (args->flags & ~(ETNA_WAIT_NONBLOCK))
388 if (args->pipe >= ETNA_MAX_PIPES)
391 gpu = priv->gpu[args->pipe];
395 obj = drm_gem_object_lookup(file, args->handle);
399 if (args->flags & ETNA_WAIT_NONBLOCK)
402 ret = etnaviv_gem_wait_bo(gpu, obj, timeout);
404 drm_gem_object_put_unlocked(obj);
409 static int etnaviv_ioctl_pm_query_dom(struct drm_device *dev, void *data,
410 struct drm_file *file)
412 struct etnaviv_drm_private *priv = dev->dev_private;
413 struct drm_etnaviv_pm_domain *args = data;
414 struct etnaviv_gpu *gpu;
416 if (args->pipe >= ETNA_MAX_PIPES)
419 gpu = priv->gpu[args->pipe];
423 return etnaviv_pm_query_dom(gpu, args);
426 static int etnaviv_ioctl_pm_query_sig(struct drm_device *dev, void *data,
427 struct drm_file *file)
429 struct etnaviv_drm_private *priv = dev->dev_private;
430 struct drm_etnaviv_pm_signal *args = data;
431 struct etnaviv_gpu *gpu;
433 if (args->pipe >= ETNA_MAX_PIPES)
436 gpu = priv->gpu[args->pipe];
440 return etnaviv_pm_query_sig(gpu, args);
443 static const struct drm_ioctl_desc etnaviv_ioctls[] = {
444 #define ETNA_IOCTL(n, func, flags) \
445 DRM_IOCTL_DEF_DRV(ETNAVIV_##n, etnaviv_ioctl_##func, flags)
446 ETNA_IOCTL(GET_PARAM, get_param, DRM_AUTH|DRM_RENDER_ALLOW),
447 ETNA_IOCTL(GEM_NEW, gem_new, DRM_AUTH|DRM_RENDER_ALLOW),
448 ETNA_IOCTL(GEM_INFO, gem_info, DRM_AUTH|DRM_RENDER_ALLOW),
449 ETNA_IOCTL(GEM_CPU_PREP, gem_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
450 ETNA_IOCTL(GEM_CPU_FINI, gem_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
451 ETNA_IOCTL(GEM_SUBMIT, gem_submit, DRM_AUTH|DRM_RENDER_ALLOW),
452 ETNA_IOCTL(WAIT_FENCE, wait_fence, DRM_AUTH|DRM_RENDER_ALLOW),
453 ETNA_IOCTL(GEM_USERPTR, gem_userptr, DRM_AUTH|DRM_RENDER_ALLOW),
454 ETNA_IOCTL(GEM_WAIT, gem_wait, DRM_AUTH|DRM_RENDER_ALLOW),
455 ETNA_IOCTL(PM_QUERY_DOM, pm_query_dom, DRM_AUTH|DRM_RENDER_ALLOW),
456 ETNA_IOCTL(PM_QUERY_SIG, pm_query_sig, DRM_AUTH|DRM_RENDER_ALLOW),
459 static const struct vm_operations_struct vm_ops = {
460 .fault = etnaviv_gem_fault,
461 .open = drm_gem_vm_open,
462 .close = drm_gem_vm_close,
465 static const struct file_operations fops = {
466 .owner = THIS_MODULE,
468 .release = drm_release,
469 .unlocked_ioctl = drm_ioctl,
470 .compat_ioctl = drm_compat_ioctl,
474 .mmap = etnaviv_gem_mmap,
477 static struct drm_driver etnaviv_drm_driver = {
478 .driver_features = DRIVER_GEM |
481 .open = etnaviv_open,
482 .postclose = etnaviv_postclose,
483 .gem_free_object_unlocked = etnaviv_gem_free_object,
484 .gem_vm_ops = &vm_ops,
485 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
486 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
487 .gem_prime_export = drm_gem_prime_export,
488 .gem_prime_import = drm_gem_prime_import,
489 .gem_prime_res_obj = etnaviv_gem_prime_res_obj,
490 .gem_prime_pin = etnaviv_gem_prime_pin,
491 .gem_prime_unpin = etnaviv_gem_prime_unpin,
492 .gem_prime_get_sg_table = etnaviv_gem_prime_get_sg_table,
493 .gem_prime_import_sg_table = etnaviv_gem_prime_import_sg_table,
494 .gem_prime_vmap = etnaviv_gem_prime_vmap,
495 .gem_prime_vunmap = etnaviv_gem_prime_vunmap,
496 .gem_prime_mmap = etnaviv_gem_prime_mmap,
497 #ifdef CONFIG_DEBUG_FS
498 .debugfs_init = etnaviv_debugfs_init,
500 .ioctls = etnaviv_ioctls,
501 .num_ioctls = DRM_ETNAVIV_NUM_IOCTLS,
504 .desc = "etnaviv DRM",
513 static int etnaviv_bind(struct device *dev)
515 struct etnaviv_drm_private *priv;
516 struct drm_device *drm;
519 drm = drm_dev_alloc(&etnaviv_drm_driver, dev);
523 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
525 dev_err(dev, "failed to allocate private data\n");
529 drm->dev_private = priv;
531 mutex_init(&priv->gem_lock);
532 INIT_LIST_HEAD(&priv->gem_list);
535 dev_set_drvdata(dev, drm);
537 ret = component_bind_all(dev, drm);
543 ret = drm_dev_register(drm, 0);
550 component_unbind_all(dev, drm);
559 static void etnaviv_unbind(struct device *dev)
561 struct drm_device *drm = dev_get_drvdata(dev);
562 struct etnaviv_drm_private *priv = drm->dev_private;
564 drm_dev_unregister(drm);
566 component_unbind_all(dev, drm);
568 drm->dev_private = NULL;
574 static const struct component_master_ops etnaviv_master_ops = {
575 .bind = etnaviv_bind,
576 .unbind = etnaviv_unbind,
579 static int compare_of(struct device *dev, void *data)
581 struct device_node *np = data;
583 return dev->of_node == np;
586 static int compare_str(struct device *dev, void *data)
588 return !strcmp(dev_name(dev), data);
591 static int etnaviv_pdev_probe(struct platform_device *pdev)
593 struct device *dev = &pdev->dev;
594 struct component_match *match = NULL;
596 dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
598 if (!dev->platform_data) {
599 struct device_node *core_node;
601 for_each_compatible_node(core_node, NULL, "vivante,gc") {
602 if (!of_device_is_available(core_node))
605 drm_of_component_match_add(&pdev->dev, &match,
606 compare_of, core_node);
609 char **names = dev->platform_data;
612 for (i = 0; names[i]; i++)
613 component_match_add(dev, &match, compare_str, names[i]);
616 return component_master_add_with_match(dev, &etnaviv_master_ops, match);
619 static int etnaviv_pdev_remove(struct platform_device *pdev)
621 component_master_del(&pdev->dev, &etnaviv_master_ops);
626 static struct platform_driver etnaviv_platform_driver = {
627 .probe = etnaviv_pdev_probe,
628 .remove = etnaviv_pdev_remove,
634 static int __init etnaviv_init(void)
637 struct device_node *np;
639 etnaviv_validate_init();
641 ret = platform_driver_register(&etnaviv_gpu_driver);
645 ret = platform_driver_register(&etnaviv_platform_driver);
647 platform_driver_unregister(&etnaviv_gpu_driver);
650 * If the DT contains at least one available GPU device, instantiate
651 * the DRM platform device.
653 for_each_compatible_node(np, NULL, "vivante,gc") {
654 if (!of_device_is_available(np))
657 platform_device_register_simple("etnaviv", -1, NULL, 0);
664 module_init(etnaviv_init);
666 static void __exit etnaviv_exit(void)
668 platform_driver_unregister(&etnaviv_gpu_driver);
669 platform_driver_unregister(&etnaviv_platform_driver);
671 module_exit(etnaviv_exit);
673 MODULE_AUTHOR("Christian Gmeiner <christian.gmeiner@gmail.com>");
674 MODULE_AUTHOR("Russell King <rmk+kernel@arm.linux.org.uk>");
675 MODULE_AUTHOR("Lucas Stach <l.stach@pengutronix.de>");
676 MODULE_DESCRIPTION("etnaviv DRM Driver");
677 MODULE_LICENSE("GPL v2");
678 MODULE_ALIAS("platform:etnaviv");