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drm/qxl: Use drm_fb_helper deferred_io support 

Use the fbdev deferred io support in drm_fb_helper which mirrors the
one qxl has had.
This patch has only been compile tested.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1461856717-6476-7-git-send-email-noralf@tronnes.org
hifive-unleashed-5.1
Noralf Trønnes 2016-04-28 17:18:36 +02:00 committed by Daniel Vetter
parent 199c77179c
commit 6819c3c251
4 changed files with 65 additions and 178 deletions
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9
drivers/gpu/drm/qxl/qxl_display.c
View File

@ -460,7 +460,7 @@ static const struct drm_crtc_funcs qxl_crtc_funcs = {
.page_flip = qxl_crtc_page_flip,
};
static void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
{
struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
@ -522,12 +522,13 @@ int
qxl_framebuffer_init(struct drm_device *dev,
struct qxl_framebuffer *qfb,
const struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object *obj)
struct drm_gem_object *obj,
const struct drm_framebuffer_funcs *funcs)
{
int ret;
qfb->obj = obj;
ret = drm_framebuffer_init(dev, &qfb->base, &qxl_fb_funcs);
ret = drm_framebuffer_init(dev, &qfb->base, funcs);
if (ret) {
qfb->obj = NULL;
return ret;
@ -994,7 +995,7 @@ qxl_user_framebuffer_create(struct drm_device *dev,
if (qxl_fb == NULL)
return NULL;
ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj);
ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj, &qxl_fb_funcs);
if (ret) {
kfree(qxl_fb);
drm_gem_object_unreference_unlocked(obj);

7
drivers/gpu/drm/qxl/qxl_drv.h
View File

@ -322,8 +322,6 @@ struct qxl_device {
struct workqueue_struct *gc_queue;
struct work_struct gc_work;
struct work_struct fb_work;
struct drm_property *hotplug_mode_update_property;
int monitors_config_width;
int monitors_config_height;
@ -387,11 +385,13 @@ int qxl_get_handle_for_primary_fb(struct qxl_device *qdev,
void qxl_fbdev_set_suspend(struct qxl_device *qdev, int state);
/* qxl_display.c */
void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb);
int
qxl_framebuffer_init(struct drm_device *dev,
struct qxl_framebuffer *rfb,
const struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object *obj);
struct drm_gem_object *obj,
const struct drm_framebuffer_funcs *funcs);
void qxl_display_read_client_monitors_config(struct qxl_device *qdev);
void qxl_send_monitors_config(struct qxl_device *qdev);
int qxl_create_monitors_object(struct qxl_device *qdev);
@ -551,7 +551,6 @@ int qxl_irq_init(struct qxl_device *qdev);
irqreturn_t qxl_irq_handler(int irq, void *arg);
/* qxl_fb.c */
int qxl_fb_init(struct qxl_device *qdev);
bool qxl_fbdev_qobj_is_fb(struct qxl_device *qdev, struct qxl_bo *qobj);
int qxl_debugfs_add_files(struct qxl_device *qdev,

223
drivers/gpu/drm/qxl/qxl_fb.c
View File

@ -46,15 +46,6 @@ struct qxl_fbdev {
struct list_head delayed_ops;
void *shadow;
int size;
/* dirty memory logging */
struct {
spinlock_t lock;
unsigned x1;
unsigned y1;
unsigned x2;
unsigned y2;
} dirty;
};
static void qxl_fb_image_init(struct qxl_fb_image *qxl_fb_image,
@ -82,169 +73,18 @@ static void qxl_fb_image_init(struct qxl_fb_image *qxl_fb_image,
}
}
static void qxl_fb_dirty_flush(struct fb_info *info)
{
struct qxl_fbdev *qfbdev = info->par;
struct qxl_device *qdev = qfbdev->qdev;
struct qxl_fb_image qxl_fb_image;
struct fb_image *image = &qxl_fb_image.fb_image;
unsigned long flags;
u32 x1, x2, y1, y2;
/* TODO: hard coding 32 bpp */
int stride = qfbdev->qfb.base.pitches[0];
spin_lock_irqsave(&qfbdev->dirty.lock, flags);
x1 = qfbdev->dirty.x1;
x2 = qfbdev->dirty.x2;
y1 = qfbdev->dirty.y1;
y2 = qfbdev->dirty.y2;
qfbdev->dirty.x1 = 0;
qfbdev->dirty.x2 = 0;
qfbdev->dirty.y1 = 0;
qfbdev->dirty.y2 = 0;
spin_unlock_irqrestore(&qfbdev->dirty.lock, flags);
/*
* we are using a shadow draw buffer, at qdev->surface0_shadow
*/
qxl_io_log(qdev, "dirty x[%d, %d], y[%d, %d]", x1, x2, y1, y2);
image->dx = x1;
image->dy = y1;
image->width = x2 - x1 + 1;
image->height = y2 - y1 + 1;
image->fg_color = 0xffffffff; /* unused, just to avoid uninitialized
warnings */
image->bg_color = 0;
image->depth = 32; /* TODO: take from somewhere? */
image->cmap.start = 0;
image->cmap.len = 0;
image->cmap.red = NULL;
image->cmap.green = NULL;
image->cmap.blue = NULL;
image->cmap.transp = NULL;
image->data = qfbdev->shadow + (x1 * 4) + (stride * y1);
qxl_fb_image_init(&qxl_fb_image, qdev, info, NULL);
qxl_draw_opaque_fb(&qxl_fb_image, stride);
}
static void qxl_dirty_update(struct qxl_fbdev *qfbdev,
int x, int y, int width, int height)
{
struct qxl_device *qdev = qfbdev->qdev;
unsigned long flags;
int x2, y2;
x2 = x + width - 1;
y2 = y + height - 1;
spin_lock_irqsave(&qfbdev->dirty.lock, flags);
if ((qfbdev->dirty.y2 - qfbdev->dirty.y1) &&
(qfbdev->dirty.x2 - qfbdev->dirty.x1)) {
if (qfbdev->dirty.y1 < y)
y = qfbdev->dirty.y1;
if (qfbdev->dirty.y2 > y2)
y2 = qfbdev->dirty.y2;
if (qfbdev->dirty.x1 < x)
x = qfbdev->dirty.x1;
if (qfbdev->dirty.x2 > x2)
x2 = qfbdev->dirty.x2;
}
qfbdev->dirty.x1 = x;
qfbdev->dirty.x2 = x2;
qfbdev->dirty.y1 = y;
qfbdev->dirty.y2 = y2;
spin_unlock_irqrestore(&qfbdev->dirty.lock, flags);
schedule_work(&qdev->fb_work);
}
static void qxl_deferred_io(struct fb_info *info,
struct list_head *pagelist)
{
struct qxl_fbdev *qfbdev = info->par;
unsigned long start, end, min, max;
struct page *page;
int y1, y2;
min = ULONG_MAX;
max = 0;
list_for_each_entry(page, pagelist, lru) {
start = page->index << PAGE_SHIFT;
end = start + PAGE_SIZE - 1;
min = min(min, start);
max = max(max, end);
}
if (min < max) {
y1 = min / info->fix.line_length;
y2 = (max / info->fix.line_length) + 1;
qxl_dirty_update(qfbdev, 0, y1, info->var.xres, y2 - y1);
}
};
static struct fb_deferred_io qxl_defio = {
.delay = QXL_DIRTY_DELAY,
.deferred_io = qxl_deferred_io,
.deferred_io = drm_fb_helper_deferred_io,
};
static void qxl_fb_fillrect(struct fb_info *info,
const struct fb_fillrect *rect)
{
struct qxl_fbdev *qfbdev = info->par;
sys_fillrect(info, rect);
qxl_dirty_update(qfbdev, rect->dx, rect->dy, rect->width,
rect->height);
}
static void qxl_fb_copyarea(struct fb_info *info,
const struct fb_copyarea *area)
{
struct qxl_fbdev *qfbdev = info->par;
sys_copyarea(info, area);
qxl_dirty_update(qfbdev, area->dx, area->dy, area->width,
area->height);
}
static void qxl_fb_imageblit(struct fb_info *info,
const struct fb_image *image)
{
struct qxl_fbdev *qfbdev = info->par;
sys_imageblit(info, image);
qxl_dirty_update(qfbdev, image->dx, image->dy, image->width,
image->height);
}
static void qxl_fb_work(struct work_struct *work)
{
struct qxl_device *qdev = container_of(work, struct qxl_device, fb_work);
struct qxl_fbdev *qfbdev = qdev->mode_info.qfbdev;
qxl_fb_dirty_flush(qfbdev->helper.fbdev);
}
int qxl_fb_init(struct qxl_device *qdev)
{
INIT_WORK(&qdev->fb_work, qxl_fb_work);
return 0;
}
static struct fb_ops qxlfb_ops = {
.owner = THIS_MODULE,
.fb_check_var = drm_fb_helper_check_var,
.fb_set_par = drm_fb_helper_set_par, /* TODO: copy vmwgfx */
.fb_fillrect = qxl_fb_fillrect,
.fb_copyarea = qxl_fb_copyarea,
.fb_imageblit = qxl_fb_imageblit,
.fb_fillrect = drm_fb_helper_sys_fillrect,
.fb_copyarea = drm_fb_helper_sys_copyarea,
.fb_imageblit = drm_fb_helper_sys_imageblit,
.fb_pan_display = drm_fb_helper_pan_display,
.fb_blank = drm_fb_helper_blank,
.fb_setcmap = drm_fb_helper_setcmap,
@ -338,6 +178,57 @@ out_unref:
return ret;
}
/*
* FIXME
* It should not be necessary to have a special dirty() callback for fbdev.
*/
static int qxlfb_framebuffer_dirty(struct drm_framebuffer *fb,
struct drm_file *file_priv,
unsigned flags, unsigned color,
struct drm_clip_rect *clips,
unsigned num_clips)
{
struct qxl_device *qdev = fb->dev->dev_private;
struct fb_info *info = qdev->fbdev_info;
struct qxl_fbdev *qfbdev = info->par;
struct qxl_fb_image qxl_fb_image;
struct fb_image *image = &qxl_fb_image.fb_image;
/* TODO: hard coding 32 bpp */
int stride = qfbdev->qfb.base.pitches[0];
/*
* we are using a shadow draw buffer, at qdev->surface0_shadow
*/
qxl_io_log(qdev, "dirty x[%d, %d], y[%d, %d]", clips->x1, clips->x2,
clips->y1, clips->y2);
image->dx = clips->x1;
image->dy = clips->y1;
image->width = clips->x2 - clips->x1;
image->height = clips->y2 - clips->y1;
image->fg_color = 0xffffffff; /* unused, just to avoid uninitialized
warnings */
image->bg_color = 0;
image->depth = 32; /* TODO: take from somewhere? */
image->cmap.start = 0;
image->cmap.len = 0;
image->cmap.red = NULL;
image->cmap.green = NULL;
image->cmap.blue = NULL;
image->cmap.transp = NULL;
image->data = qfbdev->shadow + (clips->x1 * 4) + (stride * clips->y1);
qxl_fb_image_init(&qxl_fb_image, qdev, info, NULL);
qxl_draw_opaque_fb(&qxl_fb_image, stride);
return 0;
}
static const struct drm_framebuffer_funcs qxlfb_fb_funcs = {
.destroy = qxl_user_framebuffer_destroy,
.dirty = qxlfb_framebuffer_dirty,
};
static int qxlfb_create(struct qxl_fbdev *qfbdev,
struct drm_fb_helper_surface_size *sizes)
{
@ -383,7 +274,8 @@ static int qxlfb_create(struct qxl_fbdev *qfbdev,
info->par = qfbdev;
qxl_framebuffer_init(qdev->ddev, &qfbdev->qfb, &mode_cmd, gobj);
qxl_framebuffer_init(qdev->ddev, &qfbdev->qfb, &mode_cmd, gobj,
&qxlfb_fb_funcs);
fb = &qfbdev->qfb.base;
@ -504,7 +396,6 @@ int qxl_fbdev_init(struct qxl_device *qdev)
qfbdev->qdev = qdev;
qdev->mode_info.qfbdev = qfbdev;
spin_lock_init(&qfbdev->delayed_ops_lock);
spin_lock_init(&qfbdev->dirty.lock);
INIT_LIST_HEAD(&qfbdev->delayed_ops);
drm_fb_helper_prepare(qdev->ddev, &qfbdev->helper,

4
drivers/gpu/drm/qxl/qxl_kms.c
View File

@ -261,10 +261,6 @@ static int qxl_device_init(struct qxl_device *qdev,
qdev->gc_queue = create_singlethread_workqueue("qxl_gc");
INIT_WORK(&qdev->gc_work, qxl_gc_work);
r = qxl_fb_init(qdev);
if (r)
return r;
return 0;
}