diff options
Diffstat (limited to '0008-bootsplash.patch')
| -rw-r--r-- | 0008-bootsplash.patch | 128 |
1 files changed, 72 insertions, 56 deletions
diff --git a/0008-bootsplash.patch b/0008-bootsplash.patch index 216953762e2e..d6c6db659c56 100644 --- a/0008-bootsplash.patch +++ b/0008-bootsplash.patch @@ -1,66 +1,82 @@ +diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c +index 2ebaba16f785..416735ab6dc1 100644 +--- a/drivers/tty/vt/vt.c ++++ b/drivers/tty/vt/vt.c +@@ -105,6 +105,7 @@ + #include <linux/ctype.h> + #include <linux/bsearch.h> + #include <linux/gcd.h> ++#include <linux/bootsplash.h> + + #define MAX_NR_CON_DRIVER 16 + +@@ -4235,6 +4236,7 @@ void do_unblank_screen(int leaving_gfx) + } + + console_blanked = 0; ++ bootsplash_mark_dirty(); + if (vc->vc_sw->con_blank(vc, 0, leaving_gfx)) + /* Low-level driver cannot restore -> do it ourselves */ + update_screen(vc); diff --git a/drivers/video/fbdev/core/bootsplash.c b/drivers/video/fbdev/core/bootsplash.c -index 843c5400fefc..815b007f81ca 100644 +index c8642142cfea..13fcaabbc2ca 100644 --- a/drivers/video/fbdev/core/bootsplash.c +++ b/drivers/video/fbdev/core/bootsplash.c -@@ -112,6 +112,8 @@ void bootsplash_render_full(struct fb_info *info) - - bootsplash_do_render_pictures(info, splash_state.file); +@@ -165,6 +165,13 @@ bool bootsplash_would_render_now(void) + && bootsplash_is_enabled(); + } -+ bootsplash_do_render_flush(info); ++void bootsplash_mark_dirty(void) ++{ ++ mutex_lock(&splash_state.data_lock); ++ splash_state.splash_fb = NULL; ++ mutex_unlock(&splash_state.data_lock); ++} + - out: - mutex_unlock(&splash_state.data_lock); - } -diff --git a/drivers/video/fbdev/core/bootsplash_internal.h b/drivers/video/fbdev/core/bootsplash_internal.h -index 71e2a27ac0b8..0acb383aa4e3 100644 ---- a/drivers/video/fbdev/core/bootsplash_internal.h -+++ b/drivers/video/fbdev/core/bootsplash_internal.h -@@ -89,6 +89,7 @@ void bootsplash_do_render_background(struct fb_info *info, - const struct splash_file_priv *fp); - void bootsplash_do_render_pictures(struct fb_info *info, - const struct splash_file_priv *fp); -+void bootsplash_do_render_flush(struct fb_info *info); + bool bootsplash_is_enabled(void) + { + bool was_enabled; +@@ -206,9 +213,7 @@ void bootsplash_enable(void) + if (!was_enabled) { + /* Force a full redraw when the splash is re-activated */ +- mutex_lock(&splash_state.data_lock); +- splash_state.splash_fb = NULL; +- mutex_unlock(&splash_state.data_lock); ++ bootsplash_mark_dirty(); - void bootsplash_free_file(struct splash_file_priv *fp); -diff --git a/drivers/video/fbdev/core/bootsplash_render.c b/drivers/video/fbdev/core/bootsplash_render.c -index 2ae36949d0e3..8c09c306ff67 100644 ---- a/drivers/video/fbdev/core/bootsplash_render.c -+++ b/drivers/video/fbdev/core/bootsplash_render.c -@@ -186,3 +186,36 @@ void bootsplash_do_render_pictures(struct fb_info *info, - pp->pic_header->width, pp->pic_header->height); + schedule_work(&splash_state.work_redraw_vc); } - } -+ -+ -+void bootsplash_do_render_flush(struct fb_info *info) -+{ -+ /* -+ * FB drivers using deferred_io (such as Xen) need to sync the -+ * screen after modifying its contents. When the FB is mmap()ed -+ * from userspace, this happens via a dirty pages callback, but -+ * when modifying the FB from the kernel, there is no such thing. -+ * -+ * So let's issue a fake fb_copyarea (copying the FB onto itself) -+ * to trick the FB driver into syncing the screen. -+ * -+ * A few DRM drivers' FB implementations are broken by not using -+ * deferred_io when they really should - we match on the known -+ * bad ones manually for now. -+ */ -+ if (info->fbdefio -+ || !strcmp(info->fix.id, "astdrmfb") -+ || !strcmp(info->fix.id, "cirrusdrmfb") -+ || !strcmp(info->fix.id, "mgadrmfb")) { -+ struct fb_copyarea area; +@@ -272,9 +277,7 @@ static int splash_resume(struct device *device) + * Force full redraw on resume since we've probably lost the + * framebuffer's contents meanwhile + */ +- mutex_lock(&splash_state.data_lock); +- splash_state.splash_fb = NULL; +- mutex_unlock(&splash_state.data_lock); ++ bootsplash_mark_dirty(); + + if (bootsplash_would_render_now()) + schedule_work(&splash_state.work_redraw_vc); +diff --git a/include/linux/bootsplash.h b/include/linux/bootsplash.h +index c6dd0b43180d..4075098aaadd 100644 +--- a/include/linux/bootsplash.h ++++ b/include/linux/bootsplash.h +@@ -19,6 +19,8 @@ extern void bootsplash_render_full(struct fb_info *info); + + extern bool bootsplash_would_render_now(void); + ++extern void bootsplash_mark_dirty(void); + -+ area.dx = 0; -+ area.dy = 0; -+ area.width = info->var.xres; -+ area.height = info->var.yres; -+ area.sx = 0; -+ area.sy = 0; + extern bool bootsplash_is_enabled(void); + extern void bootsplash_disable(void); + extern void bootsplash_enable(void); +@@ -31,6 +33,8 @@ extern void bootsplash_init(void); + + #define bootsplash_would_render_now() (false) + ++#define bootsplash_mark_dirty() + -+ info->fbops->fb_copyarea(info, &area); -+ } -+} + #define bootsplash_is_enabled() (false) + #define bootsplash_disable() + #define bootsplash_enable() |