diff options
Diffstat (limited to 'drivers/gpu/drm/virtio/virtgpu_fb.c')
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_fb.c | 341 |
1 files changed, 0 insertions, 341 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_fb.c b/drivers/gpu/drm/virtio/virtgpu_fb.c deleted file mode 100644 index fb1cc8b2f119..000000000000 --- a/drivers/gpu/drm/virtio/virtgpu_fb.c +++ /dev/null @@ -1,341 +0,0 @@ -/* - * Copyright (C) 2015 Red Hat, Inc. - * All Rights Reserved. - * - * 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 COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS 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. - */ - -#include <drm/drmP.h> -#include <drm/drm_fb_helper.h> -#include "virtgpu_drv.h" - -#define VIRTIO_GPU_FBCON_POLL_PERIOD (HZ / 60) - -static int virtio_gpu_dirty_update(struct virtio_gpu_framebuffer *fb, - bool store, int x, int y, - int width, int height) -{ - struct drm_device *dev = fb->base.dev; - struct virtio_gpu_device *vgdev = dev->dev_private; - bool store_for_later = false; - int bpp = fb->base.format->cpp[0]; - int x2, y2; - unsigned long flags; - struct virtio_gpu_object *obj = gem_to_virtio_gpu_obj(fb->base.obj[0]); - - if ((width <= 0) || - (x + width > fb->base.width) || - (y + height > fb->base.height)) { - DRM_DEBUG("values out of range %dx%d+%d+%d, fb %dx%d\n", - width, height, x, y, - fb->base.width, fb->base.height); - return -EINVAL; - } - - /* - * Can be called with pretty much any context (console output - * path). If we are in atomic just store the dirty rect info - * to send out the update later. - * - * Can't test inside spin lock. - */ - if (in_atomic() || store) - store_for_later = true; - - x2 = x + width - 1; - y2 = y + height - 1; - - spin_lock_irqsave(&fb->dirty_lock, flags); - - if (fb->y1 < y) - y = fb->y1; - if (fb->y2 > y2) - y2 = fb->y2; - if (fb->x1 < x) - x = fb->x1; - if (fb->x2 > x2) - x2 = fb->x2; - - if (store_for_later) { - fb->x1 = x; - fb->x2 = x2; - fb->y1 = y; - fb->y2 = y2; - spin_unlock_irqrestore(&fb->dirty_lock, flags); - return 0; - } - - fb->x1 = fb->y1 = INT_MAX; - fb->x2 = fb->y2 = 0; - - spin_unlock_irqrestore(&fb->dirty_lock, flags); - - { - uint32_t offset; - uint32_t w = x2 - x + 1; - uint32_t h = y2 - y + 1; - - offset = (y * fb->base.pitches[0]) + x * bpp; - - virtio_gpu_cmd_transfer_to_host_2d(vgdev, obj, - offset, - cpu_to_le32(w), - cpu_to_le32(h), - cpu_to_le32(x), - cpu_to_le32(y), - NULL); - - } - virtio_gpu_cmd_resource_flush(vgdev, obj->hw_res_handle, - x, y, x2 - x + 1, y2 - y + 1); - return 0; -} - -int virtio_gpu_surface_dirty(struct virtio_gpu_framebuffer *vgfb, - struct drm_clip_rect *clips, - unsigned int num_clips) -{ - struct virtio_gpu_device *vgdev = vgfb->base.dev->dev_private; - struct virtio_gpu_object *obj = gem_to_virtio_gpu_obj(vgfb->base.obj[0]); - struct drm_clip_rect norect; - struct drm_clip_rect *clips_ptr; - int left, right, top, bottom; - int i; - int inc = 1; - - if (!num_clips) { - num_clips = 1; - clips = &norect; - norect.x1 = norect.y1 = 0; - norect.x2 = vgfb->base.width; - norect.y2 = vgfb->base.height; - } - left = clips->x1; - right = clips->x2; - top = clips->y1; - bottom = clips->y2; - - /* skip the first clip rect */ - for (i = 1, clips_ptr = clips + inc; - i < num_clips; i++, clips_ptr += inc) { - left = min_t(int, left, (int)clips_ptr->x1); - right = max_t(int, right, (int)clips_ptr->x2); - top = min_t(int, top, (int)clips_ptr->y1); - bottom = max_t(int, bottom, (int)clips_ptr->y2); - } - - if (obj->dumb) - return virtio_gpu_dirty_update(vgfb, false, left, top, - right - left, bottom - top); - - virtio_gpu_cmd_resource_flush(vgdev, obj->hw_res_handle, - left, top, right - left, bottom - top); - return 0; -} - -static void virtio_gpu_fb_dirty_work(struct work_struct *work) -{ - struct delayed_work *delayed_work = to_delayed_work(work); - struct virtio_gpu_fbdev *vfbdev = - container_of(delayed_work, struct virtio_gpu_fbdev, work); - struct virtio_gpu_framebuffer *vgfb = &vfbdev->vgfb; - - virtio_gpu_dirty_update(&vfbdev->vgfb, false, vgfb->x1, vgfb->y1, - vgfb->x2 - vgfb->x1, vgfb->y2 - vgfb->y1); -} - -static void virtio_gpu_3d_fillrect(struct fb_info *info, - const struct fb_fillrect *rect) -{ - struct virtio_gpu_fbdev *vfbdev = info->par; - - drm_fb_helper_sys_fillrect(info, rect); - virtio_gpu_dirty_update(&vfbdev->vgfb, true, rect->dx, rect->dy, - rect->width, rect->height); - schedule_delayed_work(&vfbdev->work, VIRTIO_GPU_FBCON_POLL_PERIOD); -} - -static void virtio_gpu_3d_copyarea(struct fb_info *info, - const struct fb_copyarea *area) -{ - struct virtio_gpu_fbdev *vfbdev = info->par; - - drm_fb_helper_sys_copyarea(info, area); - virtio_gpu_dirty_update(&vfbdev->vgfb, true, area->dx, area->dy, - area->width, area->height); - schedule_delayed_work(&vfbdev->work, VIRTIO_GPU_FBCON_POLL_PERIOD); -} - -static void virtio_gpu_3d_imageblit(struct fb_info *info, - const struct fb_image *image) -{ - struct virtio_gpu_fbdev *vfbdev = info->par; - - drm_fb_helper_sys_imageblit(info, image); - virtio_gpu_dirty_update(&vfbdev->vgfb, true, image->dx, image->dy, - image->width, image->height); - schedule_delayed_work(&vfbdev->work, VIRTIO_GPU_FBCON_POLL_PERIOD); -} - -static struct fb_ops virtio_gpufb_ops = { - .owner = THIS_MODULE, - DRM_FB_HELPER_DEFAULT_OPS, - .fb_fillrect = virtio_gpu_3d_fillrect, - .fb_copyarea = virtio_gpu_3d_copyarea, - .fb_imageblit = virtio_gpu_3d_imageblit, -}; - -static int virtio_gpufb_create(struct drm_fb_helper *helper, - struct drm_fb_helper_surface_size *sizes) -{ - struct virtio_gpu_fbdev *vfbdev = - container_of(helper, struct virtio_gpu_fbdev, helper); - struct drm_device *dev = helper->dev; - struct virtio_gpu_device *vgdev = dev->dev_private; - struct fb_info *info; - struct drm_framebuffer *fb; - struct drm_mode_fb_cmd2 mode_cmd = {}; - struct virtio_gpu_object *obj; - uint32_t format, size; - int ret; - - mode_cmd.width = sizes->surface_width; - mode_cmd.height = sizes->surface_height; - mode_cmd.pitches[0] = mode_cmd.width * 4; - mode_cmd.pixel_format = DRM_FORMAT_HOST_XRGB8888; - - format = virtio_gpu_translate_format(mode_cmd.pixel_format); - if (format == 0) - return -EINVAL; - - size = mode_cmd.pitches[0] * mode_cmd.height; - obj = virtio_gpu_alloc_object(dev, size, false, true); - if (IS_ERR(obj)) - return PTR_ERR(obj); - - virtio_gpu_cmd_create_resource(vgdev, obj, format, - mode_cmd.width, mode_cmd.height); - - ret = virtio_gpu_object_kmap(obj); - if (ret) { - DRM_ERROR("failed to kmap fb %d\n", ret); - goto err_obj_vmap; - } - - /* attach the object to the resource */ - ret = virtio_gpu_object_attach(vgdev, obj, NULL); - if (ret) - goto err_obj_attach; - - info = drm_fb_helper_alloc_fbi(helper); - if (IS_ERR(info)) { - ret = PTR_ERR(info); - goto err_fb_alloc; - } - - info->par = helper; - - ret = virtio_gpu_framebuffer_init(dev, &vfbdev->vgfb, - &mode_cmd, &obj->gem_base); - if (ret) - goto err_fb_alloc; - - fb = &vfbdev->vgfb.base; - - vfbdev->helper.fb = fb; - - strcpy(info->fix.id, "virtiodrmfb"); - info->fbops = &virtio_gpufb_ops; - info->pixmap.flags = FB_PIXMAP_SYSTEM; - - info->screen_buffer = obj->vmap; - info->screen_size = obj->gem_base.size; - drm_fb_helper_fill_fix(info, fb->pitches[0], fb->format->depth); - drm_fb_helper_fill_var(info, &vfbdev->helper, - sizes->fb_width, sizes->fb_height); - - info->fix.mmio_start = 0; - info->fix.mmio_len = 0; - return 0; - -err_fb_alloc: - virtio_gpu_object_detach(vgdev, obj); -err_obj_attach: -err_obj_vmap: - virtio_gpu_gem_free_object(&obj->gem_base); - return ret; -} - -static int virtio_gpu_fbdev_destroy(struct drm_device *dev, - struct virtio_gpu_fbdev *vgfbdev) -{ - struct virtio_gpu_framebuffer *vgfb = &vgfbdev->vgfb; - - drm_fb_helper_unregister_fbi(&vgfbdev->helper); - - if (vgfb->base.obj[0]) - vgfb->base.obj[0] = NULL; - drm_fb_helper_fini(&vgfbdev->helper); - drm_framebuffer_cleanup(&vgfb->base); - - return 0; -} -static const struct drm_fb_helper_funcs virtio_gpu_fb_helper_funcs = { - .fb_probe = virtio_gpufb_create, -}; - -int virtio_gpu_fbdev_init(struct virtio_gpu_device *vgdev) -{ - struct virtio_gpu_fbdev *vgfbdev; - int bpp_sel = 32; /* TODO: parameter from somewhere? */ - int ret; - - vgfbdev = kzalloc(sizeof(struct virtio_gpu_fbdev), GFP_KERNEL); - if (!vgfbdev) - return -ENOMEM; - - vgfbdev->vgdev = vgdev; - vgdev->vgfbdev = vgfbdev; - INIT_DELAYED_WORK(&vgfbdev->work, virtio_gpu_fb_dirty_work); - - drm_fb_helper_prepare(vgdev->ddev, &vgfbdev->helper, - &virtio_gpu_fb_helper_funcs); - ret = drm_fb_helper_init(vgdev->ddev, &vgfbdev->helper, - VIRTIO_GPUFB_CONN_LIMIT); - if (ret) { - kfree(vgfbdev); - return ret; - } - - drm_fb_helper_single_add_all_connectors(&vgfbdev->helper); - drm_fb_helper_initial_config(&vgfbdev->helper, bpp_sel); - return 0; -} - -void virtio_gpu_fbdev_fini(struct virtio_gpu_device *vgdev) -{ - if (!vgdev->vgfbdev) - return; - - virtio_gpu_fbdev_destroy(vgdev->ddev, vgdev->vgfbdev); - kfree(vgdev->vgfbdev); - vgdev->vgfbdev = NULL; -} |