Merge tag 'drm-misc-next-2023-07-13' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v6.6:

UAPI Changes:

 * fbdev:
   * Make fbdev userspace interfaces optional; only leaves the
     framebuffer console active

 * prime:
   * Support dma-buf self-import for all drivers automatically: improves
     support for many userspace compositors

Cross-subsystem Changes:

 * backlight:
   * Fix interaction with fbdev in several drivers

 * base: Convert struct platform.remove to return void; part of a larger,
   tree-wide effort

 * dma-buf: Acquire reservation lock for mmap() in exporters; part
   of an on-going effort to simplify locking around dma-bufs

 * fbdev:
   * Use Linux device instead of fbdev device in many places
   * Use deferred-I/O helper macros in various drivers

 * i2c: Convert struct i2c from .probe_new to .probe; part of a larger,
   tree-wide effort

 * video:
   * Avoid including <linux/screen_info.h>

Core Changes:

 * atomic:
   * Improve logging

 * prime:
   * Remove struct drm_driver.gem_prime_mmap plus driver updates: all
     drivers now implement this callback with drm_gem_prime_mmap()

 * gem:
   * Support execution contexts: provides locking over multiple GEM
     objects

 * ttm:
   * Support init_on_free
   * Swapout fixes

Driver Changes:

 * accel:
   * ivpu: MMU updates; Support debugfs

 * ast:
   * Improve device-model detection
   * Cleanups

 * bridge:
   * dw-hdmi: Improve support for YUV420 bus format
   * dw-mipi-dsi: Fix enable/disable of DSI controller
   * lt9611uxc: Use MODULE_FIRMWARE()
   * ps8640: Remove broken EDID code
   * samsung-dsim: Fix command transfer
   * tc358764: Handle HS/VS polarity; Use BIT() macro; Various cleanups
   * Cleanups

 * ingenic:
   * Kconfig REGMAP fixes

 * loongson:
   * Support display controller

 * mgag200:
   * Minor fixes

 * mxsfb:
   * Support disabling overlay planes

 * nouveau:
   * Improve VRAM detection
   * Various fixes and cleanups

 * panel:
   * panel-edp: Support AUO B116XAB01.4
   * Support Visionox R66451 plus DT bindings
   * Cleanups

 * ssd130x:
   * Support per-controller default resolution plus DT bindings
   * Reduce memory-allocation overhead
   * Cleanups

 * tidss:
   * Support TI AM625 plus DT bindings
   * Implement new connector model plus driver updates

 * vkms
   * Improve write-back support
   * Documentation fixes

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230713090830.GA23281@linux-uq9g

1 files changed, 8 insertions, 70 deletions

diff --git a/drivers/video/fbdev/hecubafb.c b/drivers/video/fbdev/hecubafb.c
index 7ce0a16ce8b9..5043d08ade54 100644
--- a/drivers/video/fbdev/hecubafb.c
+++ b/drivers/video/fbdev/hecubafb.c
@@ -120,90 +120,28 @@ static void hecubafb_dpy_deferred_io(struct fb_info *info, struct list_head *pag
 	hecubafb_dpy_update(info->par);
 }
 
-static void hecubafb_fillrect(struct fb_info *info,
-				   const struct fb_fillrect *rect)
+static void hecubafb_defio_damage_range(struct fb_info *info, off_t off, size_t len)
 {
 	struct hecubafb_par *par = info->par;
 
-	sys_fillrect(info, rect);
-
 	hecubafb_dpy_update(par);
 }
 
-static void hecubafb_copyarea(struct fb_info *info,
-				   const struct fb_copyarea *area)
+static void hecubafb_defio_damage_area(struct fb_info *info, u32 x, u32 y,
+				       u32 width, u32 height)
 {
 	struct hecubafb_par *par = info->par;
 
-	sys_copyarea(info, area);
-
 	hecubafb_dpy_update(par);
 }
 
-static void hecubafb_imageblit(struct fb_info *info,
-				const struct fb_image *image)
-{
-	struct hecubafb_par *par = info->par;
-
-	sys_imageblit(info, image);
-
-	hecubafb_dpy_update(par);
-}
-
-/*
- * this is the slow path from userspace. they can seek and write to
- * the fb. it's inefficient to do anything less than a full screen draw
- */
-static ssize_t hecubafb_write(struct fb_info *info, const char __user *buf,
-				size_t count, loff_t *ppos)
-{
-	struct hecubafb_par *par = info->par;
-	unsigned long p = *ppos;
-	void *dst;
-	int err = 0;
-	unsigned long total_size;
-
-	if (!info->screen_buffer)
-		return -ENODEV;
-
-	total_size = info->fix.smem_len;
-
-	if (p > total_size)
-		return -EFBIG;
-
-	if (count > total_size) {
-		err = -EFBIG;
-		count = total_size;
-	}
-
-	if (count + p > total_size) {
-		if (!err)
-			err = -ENOSPC;
-
-		count = total_size - p;
-	}
-
-	dst = info->screen_buffer + p;
-
-	if (copy_from_user(dst, buf, count))
-		err = -EFAULT;
-
-	if  (!err)
-		*ppos += count;
-
-	hecubafb_dpy_update(par);
-
-	return (err) ? err : count;
-}
+FB_GEN_DEFAULT_DEFERRED_SYS_OPS(hecubafb,
+				hecubafb_defio_damage_range,
+				hecubafb_defio_damage_area)
 
 static const struct fb_ops hecubafb_ops = {
-	.owner		= THIS_MODULE,
-	.fb_read        = fb_sys_read,
-	.fb_write	= hecubafb_write,
-	.fb_fillrect	= hecubafb_fillrect,
-	.fb_copyarea	= hecubafb_copyarea,
-	.fb_imageblit	= hecubafb_imageblit,
-	.fb_mmap	= fb_deferred_io_mmap,
+	.owner	= THIS_MODULE,
+	FB_DEFAULT_DEFERRED_OPS(hecubafb),
 };
 
 static struct fb_deferred_io hecubafb_defio = {