From b63f5e5ca945e1c0341a2c3278575bb82bf8b890 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Thu, 6 Jul 2023 17:08:53 +0200 Subject: [PATCH] fbdev/xen-fbfront: Generate deferred I/O ops 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 Reviewed-by: Sam Ravnborg Acked-by: Helge Deller Link: https://patchwork.freedesktop.org/patch/msgid/20230706151432.20674-11-tzimmermann@suse.de --- 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 9b2a786..6664dc7 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) -- 2.7.4