drm/qxl: simple crtc page flipping emulated using buffer copy

Signed-off-by: Andreas Pokorny <andreas.pokorny@canonical.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Andreas Pokorny 2014-08-08 10:40:55 +02:00 коммит произвёл Dave Airlie
Родитель 6ba59f3b5c
Коммит 058e9f5c82
3 изменённых файлов: 79 добавлений и 4 удалений

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@ -187,6 +187,54 @@ static void qxl_crtc_destroy(struct drm_crtc *crtc)
kfree(qxl_crtc);
}
static int qxl_crtc_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event,
uint32_t page_flip_flags)
{
struct drm_device *dev = crtc->dev;
struct qxl_device *qdev = dev->dev_private;
struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
struct qxl_framebuffer *qfb_src = to_qxl_framebuffer(fb);
struct qxl_framebuffer *qfb_old = to_qxl_framebuffer(crtc->primary->fb);
struct qxl_bo *bo_old = gem_to_qxl_bo(qfb_old->obj);
struct qxl_bo *bo = gem_to_qxl_bo(qfb_src->obj);
unsigned long flags;
struct drm_clip_rect norect = {
.x1 = 0,
.y1 = 0,
.x2 = fb->width,
.y2 = fb->height
};
int inc = 1;
int one_clip_rect = 1;
int ret = 0;
crtc->primary->fb = fb;
bo_old->is_primary = false;
bo->is_primary = true;
ret = qxl_bo_reserve(bo, false);
if (ret)
return ret;
qxl_draw_dirty_fb(qdev, qfb_src, bo, 0, 0,
&norect, one_clip_rect, inc);
drm_vblank_get(dev, qcrtc->index);
if (event) {
spin_lock_irqsave(&dev->event_lock, flags);
drm_send_vblank_event(dev, qcrtc->index, event);
spin_unlock_irqrestore(&dev->event_lock, flags);
}
drm_vblank_put(dev, qcrtc->index);
qxl_bo_unreserve(bo);
return 0;
}
static int
qxl_hide_cursor(struct qxl_device *qdev)
{
@ -374,6 +422,7 @@ static const struct drm_crtc_funcs qxl_crtc_funcs = {
.cursor_move = qxl_crtc_cursor_move,
.set_config = drm_crtc_helper_set_config,
.destroy = qxl_crtc_destroy,
.page_flip = qxl_crtc_page_flip,
};
static void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)

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@ -84,6 +84,7 @@ static const struct file_operations qxl_fops = {
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
.poll = drm_poll,
.read = drm_read,
.mmap = qxl_mmap,
};
@ -195,6 +196,20 @@ static int qxl_pm_restore(struct device *dev)
return qxl_drm_resume(drm_dev, false);
}
static u32 qxl_noop_get_vblank_counter(struct drm_device *dev, int crtc)
{
return dev->vblank[crtc].count.counter;
}
static int qxl_noop_enable_vblank(struct drm_device *dev, int crtc)
{
return 0;
}
static void qxl_noop_disable_vblank(struct drm_device *dev, int crtc)
{
}
static const struct dev_pm_ops qxl_pm_ops = {
.suspend = qxl_pm_suspend,
.resume = qxl_pm_resume,
@ -216,6 +231,9 @@ static struct drm_driver qxl_driver = {
DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
.load = qxl_driver_load,
.unload = qxl_driver_unload,
.get_vblank_counter = qxl_noop_get_vblank_counter,
.enable_vblank = qxl_noop_enable_vblank,
.disable_vblank = qxl_noop_disable_vblank,
.dumb_create = qxl_mode_dumb_create,
.dumb_map_offset = qxl_mode_dumb_mmap,

Просмотреть файл

@ -298,6 +298,9 @@ int qxl_driver_unload(struct drm_device *dev)
if (qdev == NULL)
return 0;
drm_vblank_cleanup(dev);
qxl_modeset_fini(qdev);
qxl_device_fini(qdev);
@ -325,15 +328,20 @@ int qxl_driver_load(struct drm_device *dev, unsigned long flags)
if (r)
goto out;
r = drm_vblank_init(dev, 1);
if (r)
goto unload;
r = qxl_modeset_init(qdev);
if (r) {
qxl_driver_unload(dev);
goto out;
}
if (r)
goto unload;
drm_kms_helper_poll_init(qdev->ddev);
return 0;
unload:
qxl_driver_unload(dev);
out:
kfree(qdev);
return r;