@@ -51,6 +51,10 @@ static void pan_worker(struct work_struct *work)
omap_gem_roll(bo, fbi->var.yoffset * npages);
}
+FB_GEN_DEFAULT_DEFERRED_DMAMEM_OPS(omap_fbdev,
+ drm_fb_helper_damage_range,
+ drm_fb_helper_damage_area)
+
static int omap_fbdev_pan_display(struct fb_var_screeninfo *var,
struct fb_info *fbi)
{
@@ -76,15 +80,6 @@ static int omap_fbdev_pan_display(struct fb_var_screeninfo *var,
return drm_fb_helper_pan_display(var, fbi);
}
-static int omap_fbdev_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
-{
- struct drm_fb_helper *helper = info->par;
- struct drm_framebuffer *fb = helper->fb;
- struct drm_gem_object *bo = drm_gem_fb_get_obj(fb, 0);
-
- return drm_gem_mmap_obj(bo, omap_gem_mmap_size(bo), vma);
-}
-
static void omap_fbdev_fb_destroy(struct fb_info *info)
{
struct drm_fb_helper *helper = info->par;
@@ -94,6 +89,7 @@ static void omap_fbdev_fb_destroy(struct fb_info *info)
DBG();
+ fb_deferred_io_cleanup(info);
drm_fb_helper_fini(helper);
omap_gem_unpin(bo);
@@ -106,15 +102,13 @@ static void omap_fbdev_fb_destroy(struct fb_info *info)
static const struct fb_ops omap_fb_ops = {
.owner = THIS_MODULE,
- __FB_DEFAULT_DMAMEM_OPS_RDWR,
+ FB_DEFAULT_DEFERRED_OPS(omap_fbdev),
.fb_check_var = drm_fb_helper_check_var,
.fb_set_par = drm_fb_helper_set_par,
.fb_setcmap = drm_fb_helper_setcmap,
.fb_blank = drm_fb_helper_blank,
.fb_pan_display = omap_fbdev_pan_display,
- __FB_DEFAULT_DMAMEM_OPS_DRAW,
.fb_ioctl = drm_fb_helper_ioctl,
- .fb_mmap = omap_fbdev_fb_mmap,
.fb_destroy = omap_fbdev_fb_destroy,
};
@@ -213,6 +207,15 @@ static int omap_fbdev_create(struct drm_fb_helper *helper,
fbi->fix.smem_start = dma_addr;
fbi->fix.smem_len = bo->size;
+ /* deferred I/O */
+ helper->fbdefio.delay = HZ / 20;
+ helper->fbdefio.deferred_io = drm_fb_helper_deferred_io;
+
+ fbi->fbdefio = &helper->fbdefio;
+ ret = fb_deferred_io_init(fbi);
+ if (ret)
+ goto fail;
+
/* if we have DMM, then we can use it for scrolling by just
* shuffling pages around in DMM rather than doing sw blit.
*/
@@ -686,6 +686,10 @@ extern int fb_deferred_io_fsync(struct file *file, loff_t start,
__FB_GEN_DEFAULT_DEFERRED_OPS_RDWR(__prefix, __damage_range, sys) \
__FB_GEN_DEFAULT_DEFERRED_OPS_DRAW(__prefix, __damage_area, sys)
+#define FB_GEN_DEFAULT_DEFERRED_DMAMEM_OPS(__prefix, __damage_range, __damage_area) \
+ __FB_GEN_DEFAULT_DEFERRED_OPS_RDWR(__prefix, __damage_range, sys) \
+ __FB_GEN_DEFAULT_DEFERRED_OPS_DRAW(__prefix, __damage_area, sys)
+
/*
* Initializes struct fb_ops for deferred I/O.
*/
Commit 95da53d63dcf ("drm/omapdrm: Use regular fbdev I/O helpers") broke console because there is no damage handling in fb_sys_write() unlike we have in drm_fb_helper_sys_write(). Let's fix the issue by adding FB_GEN_DEFAULT_DEFERRED_DMAMEM_OPS to use with FB_DEFAULT_DEFERRED_OPS as suggested by Thomas. We no longer need omap_fbdev_fb_mmap() as FB_DEFAULT_DEFERRED_OPS sets it to fb_deferred_io_mmap(). Fixes: 95da53d63dcf ("drm/omapdrm: Use regular fbdev I/O helpers") Suggested-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Tony Lindgren <tony@atomide.com> --- drivers/gpu/drm/omapdrm/omap_fbdev.c | 27 +++++++++++++++------------ include/linux/fb.h | 4 ++++ 2 files changed, 19 insertions(+), 12 deletions(-)