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drm/fbdev-generic: Implement dedicated fbdev I/O helpers

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Implement dedicated fbdev helpers for framebuffer I/O instead
of using DRM's helpers. Use an fbdev generator macro for
deferred I/O to create the callbacks. Fbdev-generic was the
only caller of the DRM helpers, so remove them from the helper
module.

v4:
	* generate deferred-I/O helpers
	* use initializer macros for fb_ops
v2:
	* use FB_SYS_HELPERS_DEFERRED option

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Sui Jingfeng <suijingfeng@loongson.cn>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-13-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann
2023-05-30 17:12:27 +02:00
parent 4a2262c121
commit c6baad68d4
4 changed files with 6 additions and 159 deletions
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11
drivers/gpu/drm/drm_fbdev_generic.c
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@@ -34,6 +34,10 @@ static int drm_fbdev_generic_fb_release(struct fb_info *info, int user)
return 0;
}
FB_GEN_DEFAULT_DEFERRED_SYS_OPS(drm_fbdev_generic,
drm_fb_helper_damage_range,
drm_fb_helper_damage_area);
static void drm_fbdev_generic_fb_destroy(struct fb_info *info)
{
struct drm_fb_helper *fb_helper = info->par;
@@ -56,13 +60,8 @@ static const struct fb_ops drm_fbdev_generic_fb_ops = {
.owner = THIS_MODULE,
.fb_open = drm_fbdev_generic_fb_open,
.fb_release = drm_fbdev_generic_fb_release,
.fb_read = drm_fb_helper_sys_read,
.fb_write = drm_fb_helper_sys_write,
FB_DEFAULT_DEFERRED_OPS(drm_fbdev_generic),
DRM_FB_HELPER_DEFAULT_OPS,
.fb_fillrect = drm_fb_helper_sys_fillrect,
.fb_copyarea = drm_fb_helper_sys_copyarea,
.fb_imageblit = drm_fb_helper_sys_imageblit,
.fb_mmap = fb_deferred_io_mmap,
.fb_destroy = drm_fbdev_generic_fb_destroy,
};