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drm/virtio: drop framebuffer dirty tracking code 

No need to have our own implementation,
atomic helpers can do it for us.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20190611125408.29421-1-kraxel@redhat.com
This commit is contained in:
Gerd Hoffmann 2019-06-11 14:54:07 +02:00
parent 09cc560951
commit b07baa0393
4 changed files with 3 additions and 176 deletions
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2
drivers/gpu/drm/virtio/Makefile
View File

@ -4,7 +4,7 @@
# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
virtio-gpu-y := virtgpu_drv.o virtgpu_kms.o virtgpu_gem.o \
virtgpu_fb.o virtgpu_display.o virtgpu_vq.o virtgpu_ttm.o \
virtgpu_display.o virtgpu_vq.o virtgpu_ttm.o \
virtgpu_fence.o virtgpu_object.o virtgpu_debugfs.o virtgpu_plane.o \
virtgpu_ioctl.o virtgpu_prime.o virtgpu_trace_points.o

20
drivers/gpu/drm/virtio/virtgpu_display.c
View File

@ -29,6 +29,7 @@
#include <drm/drm_atomic_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_damage_helper.h>
#define XRES_MIN 32
#define YRES_MIN 32
@ -49,23 +50,10 @@ static const struct drm_crtc_funcs virtio_gpu_crtc_funcs = {
.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
};
static int
virtio_gpu_framebuffer_surface_dirty(struct drm_framebuffer *fb,
struct drm_file *file_priv,
unsigned int flags, unsigned int color,
struct drm_clip_rect *clips,
unsigned int num_clips)
{
struct virtio_gpu_framebuffer *virtio_gpu_fb
= to_virtio_gpu_framebuffer(fb);
return virtio_gpu_surface_dirty(virtio_gpu_fb, clips, num_clips);
}
static const struct drm_framebuffer_funcs virtio_gpu_fb_funcs = {
.create_handle = drm_gem_fb_create_handle,
.destroy = drm_gem_fb_destroy,
.dirty = virtio_gpu_framebuffer_surface_dirty,
.dirty = drm_atomic_helper_dirtyfb,
};
int
@ -85,10 +73,6 @@ virtio_gpu_framebuffer_init(struct drm_device *dev,
vgfb->base.obj[0] = NULL;
return ret;
}
spin_lock_init(&vgfb->dirty_lock);
vgfb->x1 = vgfb->y1 = INT_MAX;
vgfb->x2 = vgfb->y2 = 0;
return 0;
}

7
drivers/gpu/drm/virtio/virtgpu_drv.h
View File

@ -142,9 +142,6 @@ struct virtio_gpu_output {
struct virtio_gpu_framebuffer {
struct drm_framebuffer base;
int x1, y1, x2, y2; /* dirty rect */
spinlock_t dirty_lock;
uint32_t hw_res_handle;
struct virtio_gpu_fence *fence;
};
#define to_virtio_gpu_framebuffer(x) \
@ -254,10 +251,6 @@ int virtio_gpu_mode_dumb_mmap(struct drm_file *file_priv,
struct drm_device *dev,
uint32_t handle, uint64_t *offset_p);
/* virtio_fb */
int virtio_gpu_surface_dirty(struct virtio_gpu_framebuffer *qfb,
struct drm_clip_rect *clips,
unsigned int num_clips);
/* virtio vg */
int virtio_gpu_alloc_vbufs(struct virtio_gpu_device *vgdev);
void virtio_gpu_free_vbufs(struct virtio_gpu_device *vgdev);

150
drivers/gpu/drm/virtio/virtgpu_fb.c
View File

@ -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;
}