diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_fbcon.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_fbcon.c | 613 |
1 files changed, 0 insertions, 613 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c deleted file mode 100644 index e87de7906f78..000000000000 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ /dev/null @@ -1,613 +0,0 @@ -/* - * Copyright © 2007 David Airlie - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - * Authors: - * David Airlie - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/tty.h> -#include <linux/sysrq.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/screen_info.h> -#include <linux/vga_switcheroo.h> -#include <linux/console.h> - -#include <drm/drm_crtc.h> -#include <drm/drm_crtc_helper.h> -#include <drm/drm_probe_helper.h> -#include <drm/drm_fb_helper.h> -#include <drm/drm_fourcc.h> -#include <drm/drm_atomic.h> - -#include "nouveau_drv.h" -#include "nouveau_gem.h" -#include "nouveau_bo.h" -#include "nouveau_fbcon.h" -#include "nouveau_chan.h" -#include "nouveau_vmm.h" - -#include "nouveau_crtc.h" - -MODULE_PARM_DESC(nofbaccel, "Disable fbcon acceleration"); -int nouveau_nofbaccel = 0; -module_param_named(nofbaccel, nouveau_nofbaccel, int, 0400); - -MODULE_PARM_DESC(fbcon_bpp, "fbcon bits-per-pixel (default: auto)"); -static int nouveau_fbcon_bpp; -module_param_named(fbcon_bpp, nouveau_fbcon_bpp, int, 0400); - -static void -nouveau_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect) -{ - struct nouveau_fbdev *fbcon = info->par; - struct nouveau_drm *drm = nouveau_drm(fbcon->helper.dev); - struct nvif_device *device = &drm->client.device; - int ret; - - if (info->state != FBINFO_STATE_RUNNING) - return; - - ret = -ENODEV; - if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) && - mutex_trylock(&drm->client.mutex)) { - if (device->info.family < NV_DEVICE_INFO_V0_TESLA) - ret = nv04_fbcon_fillrect(info, rect); - else - if (device->info.family < NV_DEVICE_INFO_V0_FERMI) - ret = nv50_fbcon_fillrect(info, rect); - else - ret = nvc0_fbcon_fillrect(info, rect); - mutex_unlock(&drm->client.mutex); - } - - if (ret == 0) - return; - - if (ret != -ENODEV) - nouveau_fbcon_gpu_lockup(info); - drm_fb_helper_cfb_fillrect(info, rect); -} - -static void -nouveau_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *image) -{ - struct nouveau_fbdev *fbcon = info->par; - struct nouveau_drm *drm = nouveau_drm(fbcon->helper.dev); - struct nvif_device *device = &drm->client.device; - int ret; - - if (info->state != FBINFO_STATE_RUNNING) - return; - - ret = -ENODEV; - if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) && - mutex_trylock(&drm->client.mutex)) { - if (device->info.family < NV_DEVICE_INFO_V0_TESLA) - ret = nv04_fbcon_copyarea(info, image); - else - if (device->info.family < NV_DEVICE_INFO_V0_FERMI) - ret = nv50_fbcon_copyarea(info, image); - else - ret = nvc0_fbcon_copyarea(info, image); - mutex_unlock(&drm->client.mutex); - } - - if (ret == 0) - return; - - if (ret != -ENODEV) - nouveau_fbcon_gpu_lockup(info); - drm_fb_helper_cfb_copyarea(info, image); -} - -static void -nouveau_fbcon_imageblit(struct fb_info *info, const struct fb_image *image) -{ - struct nouveau_fbdev *fbcon = info->par; - struct nouveau_drm *drm = nouveau_drm(fbcon->helper.dev); - struct nvif_device *device = &drm->client.device; - int ret; - - if (info->state != FBINFO_STATE_RUNNING) - return; - - ret = -ENODEV; - if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) && - mutex_trylock(&drm->client.mutex)) { - if (device->info.family < NV_DEVICE_INFO_V0_TESLA) - ret = nv04_fbcon_imageblit(info, image); - else - if (device->info.family < NV_DEVICE_INFO_V0_FERMI) - ret = nv50_fbcon_imageblit(info, image); - else - ret = nvc0_fbcon_imageblit(info, image); - mutex_unlock(&drm->client.mutex); - } - - if (ret == 0) - return; - - if (ret != -ENODEV) - nouveau_fbcon_gpu_lockup(info); - drm_fb_helper_cfb_imageblit(info, image); -} - -static int -nouveau_fbcon_sync(struct fb_info *info) -{ - struct nouveau_fbdev *fbcon = info->par; - struct nouveau_drm *drm = nouveau_drm(fbcon->helper.dev); - struct nouveau_channel *chan = drm->channel; - int ret; - - if (!chan || !chan->accel_done || in_interrupt() || - info->state != FBINFO_STATE_RUNNING || - info->flags & FBINFO_HWACCEL_DISABLED) - return 0; - - if (!mutex_trylock(&drm->client.mutex)) - return 0; - - ret = nouveau_channel_idle(chan); - mutex_unlock(&drm->client.mutex); - if (ret) { - nouveau_fbcon_gpu_lockup(info); - return 0; - } - - chan->accel_done = false; - return 0; -} - -static int -nouveau_fbcon_open(struct fb_info *info, int user) -{ - struct nouveau_fbdev *fbcon = info->par; - struct nouveau_drm *drm = nouveau_drm(fbcon->helper.dev); - int ret = pm_runtime_get_sync(drm->dev->dev); - if (ret < 0 && ret != -EACCES) { - pm_runtime_put(drm->dev->dev); - return ret; - } - return 0; -} - -static int -nouveau_fbcon_release(struct fb_info *info, int user) -{ - struct nouveau_fbdev *fbcon = info->par; - struct nouveau_drm *drm = nouveau_drm(fbcon->helper.dev); - pm_runtime_put(drm->dev->dev); - return 0; -} - -static const struct fb_ops nouveau_fbcon_ops = { - .owner = THIS_MODULE, - DRM_FB_HELPER_DEFAULT_OPS, - .fb_open = nouveau_fbcon_open, - .fb_release = nouveau_fbcon_release, - .fb_fillrect = nouveau_fbcon_fillrect, - .fb_copyarea = nouveau_fbcon_copyarea, - .fb_imageblit = nouveau_fbcon_imageblit, - .fb_sync = nouveau_fbcon_sync, -}; - -static const struct fb_ops nouveau_fbcon_sw_ops = { - .owner = THIS_MODULE, - DRM_FB_HELPER_DEFAULT_OPS, - .fb_open = nouveau_fbcon_open, - .fb_release = nouveau_fbcon_release, - .fb_fillrect = drm_fb_helper_cfb_fillrect, - .fb_copyarea = drm_fb_helper_cfb_copyarea, - .fb_imageblit = drm_fb_helper_cfb_imageblit, -}; - -void -nouveau_fbcon_accel_save_disable(struct drm_device *dev) -{ - struct nouveau_drm *drm = nouveau_drm(dev); - if (drm->fbcon && drm->fbcon->helper.info) { - drm->fbcon->saved_flags = drm->fbcon->helper.info->flags; - drm->fbcon->helper.info->flags |= FBINFO_HWACCEL_DISABLED; - } -} - -void -nouveau_fbcon_accel_restore(struct drm_device *dev) -{ - struct nouveau_drm *drm = nouveau_drm(dev); - if (drm->fbcon && drm->fbcon->helper.info) - drm->fbcon->helper.info->flags = drm->fbcon->saved_flags; -} - -static void -nouveau_fbcon_accel_fini(struct drm_device *dev) -{ - struct nouveau_drm *drm = nouveau_drm(dev); - struct nouveau_fbdev *fbcon = drm->fbcon; - if (fbcon && drm->channel) { - console_lock(); - if (fbcon->helper.info) - fbcon->helper.info->flags |= FBINFO_HWACCEL_DISABLED; - console_unlock(); - nouveau_channel_idle(drm->channel); - nvif_object_dtor(&fbcon->twod); - nvif_object_dtor(&fbcon->blit); - nvif_object_dtor(&fbcon->gdi); - nvif_object_dtor(&fbcon->patt); - nvif_object_dtor(&fbcon->rop); - nvif_object_dtor(&fbcon->clip); - nvif_object_dtor(&fbcon->surf2d); - } -} - -static void -nouveau_fbcon_accel_init(struct drm_device *dev) -{ - struct nouveau_drm *drm = nouveau_drm(dev); - struct nouveau_fbdev *fbcon = drm->fbcon; - struct fb_info *info = fbcon->helper.info; - int ret; - - if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) - ret = nv04_fbcon_accel_init(info); - else - if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) - ret = nv50_fbcon_accel_init(info); - else - ret = nvc0_fbcon_accel_init(info); - - if (ret == 0) - info->fbops = &nouveau_fbcon_ops; -} - -static void -nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *fbcon) -{ - struct fb_info *info = fbcon->helper.info; - struct fb_fillrect rect; - - /* Clear the entire fbcon. The drm will program every connector - * with it's preferred mode. If the sizes differ, one display will - * quite likely have garbage around the console. - */ - rect.dx = rect.dy = 0; - rect.width = info->var.xres_virtual; - rect.height = info->var.yres_virtual; - rect.color = 0; - rect.rop = ROP_COPY; - info->fbops->fb_fillrect(info, &rect); -} - -static int -nouveau_fbcon_create(struct drm_fb_helper *helper, - struct drm_fb_helper_surface_size *sizes) -{ - struct nouveau_fbdev *fbcon = - container_of(helper, struct nouveau_fbdev, helper); - struct drm_device *dev = fbcon->helper.dev; - struct nouveau_drm *drm = nouveau_drm(dev); - struct nvif_device *device = &drm->client.device; - struct fb_info *info; - struct drm_framebuffer *fb; - struct nouveau_channel *chan; - struct nouveau_bo *nvbo; - struct drm_mode_fb_cmd2 mode_cmd = {}; - int ret; - - mode_cmd.width = sizes->surface_width; - mode_cmd.height = sizes->surface_height; - - mode_cmd.pitches[0] = mode_cmd.width * (sizes->surface_bpp >> 3); - mode_cmd.pitches[0] = roundup(mode_cmd.pitches[0], 256); - - mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, - sizes->surface_depth); - - ret = nouveau_gem_new(&drm->client, mode_cmd.pitches[0] * - mode_cmd.height, 0, NOUVEAU_GEM_DOMAIN_VRAM, - 0, 0x0000, &nvbo); - if (ret) { - NV_ERROR(drm, "failed to allocate framebuffer\n"); - goto out; - } - - ret = nouveau_framebuffer_new(dev, &mode_cmd, &nvbo->bo.base, &fb); - if (ret) - goto out_unref; - - ret = nouveau_bo_pin(nvbo, NOUVEAU_GEM_DOMAIN_VRAM, false); - if (ret) { - NV_ERROR(drm, "failed to pin fb: %d\n", ret); - goto out_unref; - } - - ret = nouveau_bo_map(nvbo); - if (ret) { - NV_ERROR(drm, "failed to map fb: %d\n", ret); - goto out_unpin; - } - - chan = nouveau_nofbaccel ? NULL : drm->channel; - if (chan && device->info.family >= NV_DEVICE_INFO_V0_TESLA) { - ret = nouveau_vma_new(nvbo, chan->vmm, &fbcon->vma); - if (ret) { - NV_ERROR(drm, "failed to map fb into chan: %d\n", ret); - chan = NULL; - } - } - - info = drm_fb_helper_alloc_info(helper); - if (IS_ERR(info)) { - ret = PTR_ERR(info); - goto out_unlock; - } - - /* setup helper */ - fbcon->helper.fb = fb; - - if (!chan) - info->flags = FBINFO_HWACCEL_DISABLED; - else - info->flags = FBINFO_HWACCEL_COPYAREA | - FBINFO_HWACCEL_FILLRECT | - FBINFO_HWACCEL_IMAGEBLIT; - info->fbops = &nouveau_fbcon_sw_ops; - info->fix.smem_start = nvbo->bo.resource->bus.offset; - info->fix.smem_len = nvbo->bo.base.size; - - info->screen_base = nvbo_kmap_obj_iovirtual(nvbo); - info->screen_size = nvbo->bo.base.size; - - drm_fb_helper_fill_info(info, &fbcon->helper, sizes); - - /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ - - if (chan) - nouveau_fbcon_accel_init(dev); - nouveau_fbcon_zfill(dev, fbcon); - - /* To allow resizeing without swapping buffers */ - NV_INFO(drm, "allocated %dx%d fb: 0x%llx, bo %p\n", - fb->width, fb->height, nvbo->offset, nvbo); - - if (dev_is_pci(dev->dev)) - vga_switcheroo_client_fb_set(to_pci_dev(dev->dev), info); - - return 0; - -out_unlock: - if (chan) - nouveau_vma_del(&fbcon->vma); - nouveau_bo_unmap(nvbo); -out_unpin: - nouveau_bo_unpin(nvbo); -out_unref: - nouveau_bo_ref(NULL, &nvbo); -out: - return ret; -} - -static int -nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *fbcon) -{ - struct drm_framebuffer *fb = fbcon->helper.fb; - struct nouveau_bo *nvbo; - - drm_fb_helper_unregister_info(&fbcon->helper); - drm_fb_helper_fini(&fbcon->helper); - - if (fb && fb->obj[0]) { - nvbo = nouveau_gem_object(fb->obj[0]); - nouveau_vma_del(&fbcon->vma); - nouveau_bo_unmap(nvbo); - nouveau_bo_unpin(nvbo); - drm_framebuffer_put(fb); - } - - return 0; -} - -void nouveau_fbcon_gpu_lockup(struct fb_info *info) -{ - struct nouveau_fbdev *fbcon = info->par; - struct nouveau_drm *drm = nouveau_drm(fbcon->helper.dev); - - NV_ERROR(drm, "GPU lockup - switching to software fbcon\n"); - info->flags |= FBINFO_HWACCEL_DISABLED; -} - -static const struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = { - .fb_probe = nouveau_fbcon_create, -}; - -static void -nouveau_fbcon_set_suspend_work(struct work_struct *work) -{ - struct nouveau_drm *drm = container_of(work, typeof(*drm), fbcon_work); - int state = READ_ONCE(drm->fbcon_new_state); - - if (state == FBINFO_STATE_RUNNING) - pm_runtime_get_sync(drm->dev->dev); - - console_lock(); - if (state == FBINFO_STATE_RUNNING) - nouveau_fbcon_accel_restore(drm->dev); - drm_fb_helper_set_suspend(&drm->fbcon->helper, state); - if (state != FBINFO_STATE_RUNNING) - nouveau_fbcon_accel_save_disable(drm->dev); - console_unlock(); - - if (state == FBINFO_STATE_RUNNING) { - nouveau_fbcon_hotplug_resume(drm->fbcon); - pm_runtime_mark_last_busy(drm->dev->dev); - pm_runtime_put_autosuspend(drm->dev->dev); - } -} - -void -nouveau_fbcon_set_suspend(struct drm_device *dev, int state) -{ - struct nouveau_drm *drm = nouveau_drm(dev); - - if (!drm->fbcon) - return; - - drm->fbcon_new_state = state; - /* Since runtime resume can happen as a result of a sysfs operation, - * it's possible we already have the console locked. So handle fbcon - * init/deinit from a seperate work thread - */ - schedule_work(&drm->fbcon_work); -} - -void -nouveau_fbcon_output_poll_changed(struct drm_device *dev) -{ - struct nouveau_drm *drm = nouveau_drm(dev); - struct nouveau_fbdev *fbcon = drm->fbcon; - int ret; - - if (!fbcon) - return; - - mutex_lock(&fbcon->hotplug_lock); - - ret = pm_runtime_get(dev->dev); - if (ret == 1 || ret == -EACCES) { - drm_fb_helper_hotplug_event(&fbcon->helper); - - pm_runtime_mark_last_busy(dev->dev); - pm_runtime_put_autosuspend(dev->dev); - } else if (ret == 0) { - /* If the GPU was already in the process of suspending before - * this event happened, then we can't block here as we'll - * deadlock the runtime pmops since they wait for us to - * finish. So, just defer this event for when we runtime - * resume again. It will be handled by fbcon_work. - */ - NV_DEBUG(drm, "fbcon HPD event deferred until runtime resume\n"); - fbcon->hotplug_waiting = true; - pm_runtime_put_noidle(drm->dev->dev); - } else { - DRM_WARN("fbcon HPD event lost due to RPM failure: %d\n", - ret); - } - - mutex_unlock(&fbcon->hotplug_lock); -} - -void -nouveau_fbcon_hotplug_resume(struct nouveau_fbdev *fbcon) -{ - struct nouveau_drm *drm; - - if (!fbcon) - return; - drm = nouveau_drm(fbcon->helper.dev); - - mutex_lock(&fbcon->hotplug_lock); - if (fbcon->hotplug_waiting) { - fbcon->hotplug_waiting = false; - - NV_DEBUG(drm, "Handling deferred fbcon HPD events\n"); - drm_fb_helper_hotplug_event(&fbcon->helper); - } - mutex_unlock(&fbcon->hotplug_lock); -} - -int -nouveau_fbcon_init(struct drm_device *dev) -{ - struct nouveau_drm *drm = nouveau_drm(dev); - struct nouveau_fbdev *fbcon; - int preferred_bpp = nouveau_fbcon_bpp; - int ret; - - if (!dev->mode_config.num_crtc || - (to_pci_dev(dev->dev)->class >> 8) != PCI_CLASS_DISPLAY_VGA) - return 0; - - fbcon = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL); - if (!fbcon) - return -ENOMEM; - - drm->fbcon = fbcon; - INIT_WORK(&drm->fbcon_work, nouveau_fbcon_set_suspend_work); - mutex_init(&fbcon->hotplug_lock); - - drm_fb_helper_prepare(dev, &fbcon->helper, &nouveau_fbcon_helper_funcs); - - ret = drm_fb_helper_init(dev, &fbcon->helper); - if (ret) - goto free; - - if (preferred_bpp != 8 && preferred_bpp != 16 && preferred_bpp != 32) { - if (drm->client.device.info.ram_size <= 32 * 1024 * 1024) - preferred_bpp = 8; - else - if (drm->client.device.info.ram_size <= 64 * 1024 * 1024) - preferred_bpp = 16; - else - preferred_bpp = 32; - } - - /* disable all the possible outputs/crtcs before entering KMS mode */ - if (!drm_drv_uses_atomic_modeset(dev)) - drm_helper_disable_unused_functions(dev); - - ret = drm_fb_helper_initial_config(&fbcon->helper, preferred_bpp); - if (ret) - goto fini; - - if (fbcon->helper.info) - fbcon->helper.info->pixmap.buf_align = 4; - return 0; - -fini: - drm_fb_helper_fini(&fbcon->helper); -free: - kfree(fbcon); - drm->fbcon = NULL; - return ret; -} - -void -nouveau_fbcon_fini(struct drm_device *dev) -{ - struct nouveau_drm *drm = nouveau_drm(dev); - - if (!drm->fbcon) - return; - - drm_kms_helper_poll_fini(dev); - nouveau_fbcon_accel_fini(dev); - nouveau_fbcon_destroy(dev, drm->fbcon); - kfree(drm->fbcon); - drm->fbcon = NULL; -} |