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path: root/drivers/gpu/drm/virtio/virtgpu_fb.c
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Diffstat (limited to 'drivers/gpu/drm/virtio/virtgpu_fb.c')
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_fb.c150
1 files changed, 0 insertions, 150 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_fb.c b/drivers/gpu/drm/virtio/virtgpu_fb.c
deleted file mode 100644
index b07584b1c2bf..000000000000
--- a/drivers/gpu/drm/virtio/virtgpu_fb.c
+++ /dev/null
@@ -1,150 +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"
-
-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;
-}