Commit 47434847 authored by Antonino A. Daplas's avatar Antonino A. Daplas Committed by Linus Torvalds
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[PATCH] fbcon: Add ability to save/restore graphics state

Add hooks to save and restore the graphics state.  These hooks are called in
fbcon_blank() when entering/leaving KD_GRAPHICS mode.  This is needed by
savagefb at least so it can cooperate with savage_dri and by cyblafb.

State save/restoration can be full or partial.
Signed-off-by: default avatarAntonino Daplas <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 56f0d64d
......@@ -2191,11 +2191,14 @@ static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch)
ops->graphics = 1;
if (!blank) {
if (info->fbops->fb_save_state)
fb_set_var(info, &var);
ops->graphics = 0;
ops->var = info->var;
} else if (info->fbops->fb_restore_state)
if (!fbcon_is_inactive(vc, info)) {
......@@ -617,6 +617,12 @@ struct fb_ops {
/* perform fb specific mmap */
int (*fb_mmap)(struct fb_info *info, struct file *file, struct vm_area_struct *vma);
/* save current hardware state */
void (*fb_save_state)(struct fb_info *info);
/* restore saved state */
void (*fb_restore_state)(struct fb_info *info);
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