Use the existing generator macros to create deferred-I/O helpers
for xen-fbfront and set them in the fb_ops structure. Functions
for damage handling on memory ranges and areas are provided by
the driver.
Xen-fbfront's implementation of fb_write writes to system memory,
so the generated code can use the respective helper internally.
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
---
drivers/video/fbdev/xen-fbfront.c | 61 ++++++++++---------------------
1 file changed, 20 insertions(+), 41 deletions(-)
diff --git a/drivers/video/fbdev/xen-fbfront.c b/drivers/video/fbdev/xen-fbfront.c
index 9b2a786621a6..6664dc7a5a41 100644
--- a/drivers/video/fbdev/xen-fbfront.c
+++ b/drivers/video/fbdev/xen-fbfront.c
@@ -240,41 +240,6 @@ static int xenfb_setcolreg(unsigned regno, unsigned red, unsigned green,
return 0;
}
-static void xenfb_fillrect(struct fb_info *p, const struct fb_fillrect *rect)
-{
- struct xenfb_info *info = p->par;
-
- sys_fillrect(p, rect);
- xenfb_refresh(info, rect->dx, rect->dy, rect->width, rect->height);
-}
-
-static void xenfb_imageblit(struct fb_info *p, const struct fb_image *image)
-{
- struct xenfb_info *info = p->par;
-
- sys_imageblit(p, image);
- xenfb_refresh(info, image->dx, image->dy, image->width, image->height);
-}
-
-static void xenfb_copyarea(struct fb_info *p, const struct fb_copyarea *area)
-{
- struct xenfb_info *info = p->par;
-
- sys_copyarea(p, area);
- xenfb_refresh(info, area->dx, area->dy, area->width, area->height);
-}
-
-static ssize_t xenfb_write(struct fb_info *p, const char __user *buf,
- size_t count, loff_t *ppos)
-{
- struct xenfb_info *info = p->par;
- ssize_t res;
-
- res = fb_sys_write(p, buf, count, ppos);
- xenfb_refresh(info, 0, 0, info->page->width, info->page->height);
- return res;
-}
-
static int
xenfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
@@ -326,17 +291,31 @@ static int xenfb_set_par(struct fb_info *info)
return 0;
}
+static void xenfb_defio_damage_range(struct fb_info *info, off_t off, size_t len)
+{
+ struct xenfb_info *xenfb_info = info->par;
+
+ xenfb_refresh(xenfb_info, 0, 0, xenfb_info->page->width, xenfb_info->page->height);
+}
+
+static void xenfb_defio_damage_area(struct fb_info *info, u32 x, u32 y,
+ u32 width, u32 height)
+{
+ struct xenfb_info *xenfb_info = info->par;
+
+ xenfb_refresh(xenfb_info, x, y, width, height);
+}
+
+FB_GEN_DEFAULT_DEFERRED_SYS_OPS(xenfb,
+ xenfb_defio_damage_range,
+ xenfb_defio_damage_area)
+
static const struct fb_ops xenfb_fb_ops = {
.owner = THIS_MODULE,
- .fb_read = fb_sys_read,
- .fb_write = xenfb_write,
+ FB_DEFAULT_DEFERRED_OPS(xenfb),
.fb_setcolreg = xenfb_setcolreg,
- .fb_fillrect = xenfb_fillrect,
- .fb_copyarea = xenfb_copyarea,
- .fb_imageblit = xenfb_imageblit,
.fb_check_var = xenfb_check_var,
.fb_set_par = xenfb_set_par,
- .fb_mmap = fb_deferred_io_mmap,
};
static irqreturn_t xenfb_event_handler(int rq, void *dev_id)
--
2.41.0
