| Message ID | 20190827110854.12574-3-peda@axentia.se (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add possibility to specify the number of displayed logos | expand |
On 8/27/19 1:09 PM, Peter Rosin wrote: > Probably most useful if you want no logo at all, or if you only want one > logo regardless of how many CPU cores you have. > > Signed-off-by: Peter Rosin <peda@axentia.se> Thanks, patch queued for v5.6 (also sorry for the delay). Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics > --- > Documentation/fb/fbcon.rst | 5 +++++ > drivers/video/fbdev/core/fbcon.c | 7 +++++++ > drivers/video/fbdev/core/fbmem.c | 12 +++++++++--- > include/linux/fb.h | 1 + > 4 files changed, 22 insertions(+), 3 deletions(-) > > diff --git a/Documentation/fb/fbcon.rst b/Documentation/fb/fbcon.rst > index 65ba40255137..e57a3d1d085a 100644 > --- a/Documentation/fb/fbcon.rst > +++ b/Documentation/fb/fbcon.rst > @@ -174,6 +174,11 @@ C. Boot options > displayed due to multiple CPUs, the collected line of logos is moved > as a whole. > > +9. fbcon=logo-count:<n> > + > + The value 'n' overrides the number of bootup logos. 0 disables the > + logo, and -1 gives the default which is the number of online CPUs. > + > C. Attaching, Detaching and Unloading > > Before going on to how to attach, detach and unload the framebuffer console, an > diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c > index c9235a2f42f8..bb6ae995c2e5 100644 > --- a/drivers/video/fbdev/core/fbcon.c > +++ b/drivers/video/fbdev/core/fbcon.c > @@ -536,6 +536,13 @@ static int __init fb_console_setup(char *this_opt) > fb_center_logo = true; > continue; > } > + > + if (!strncmp(options, "logo-count:", 11)) { > + options += 11; > + if (*options) > + fb_logo_count = simple_strtol(options, &options, 0); > + continue; > + } > } > return 1; > } > diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c > index 64dd732021d8..c7ddcb72025b 100644 > --- a/drivers/video/fbdev/core/fbmem.c > +++ b/drivers/video/fbdev/core/fbmem.c > @@ -56,6 +56,8 @@ EXPORT_SYMBOL(num_registered_fb); > bool fb_center_logo __read_mostly; > EXPORT_SYMBOL(fb_center_logo); > > +int fb_logo_count __read_mostly = -1; > + > static struct fb_info *get_fb_info(unsigned int idx) > { > struct fb_info *fb_info; > @@ -620,7 +622,7 @@ int fb_prepare_logo(struct fb_info *info, int rotate) > memset(&fb_logo, 0, sizeof(struct logo_data)); > > if (info->flags & FBINFO_MISC_TILEBLITTING || > - info->fbops->owner) > + info->fbops->owner || !fb_logo_count) > return 0; > > if (info->fix.visual == FB_VISUAL_DIRECTCOLOR) { > @@ -686,10 +688,14 @@ int fb_prepare_logo(struct fb_info *info, int rotate) > > int fb_show_logo(struct fb_info *info, int rotate) > { > + unsigned int count; > int y; > > - y = fb_show_logo_line(info, rotate, fb_logo.logo, 0, > - num_online_cpus()); > + if (!fb_logo_count) > + return 0; > + > + count = fb_logo_count < 0 ? num_online_cpus() : fb_logo_count; > + y = fb_show_logo_line(info, rotate, fb_logo.logo, 0, count); > y = fb_show_extra_logos(info, y, rotate); > > return y; > diff --git a/include/linux/fb.h b/include/linux/fb.h > index 303771264644..e37f72b2efca 100644 > --- a/include/linux/fb.h > +++ b/include/linux/fb.h > @@ -630,6 +630,7 @@ extern int fb_new_modelist(struct fb_info *info); > extern struct fb_info *registered_fb[FB_MAX]; > extern int num_registered_fb; > extern bool fb_center_logo; > +extern int fb_logo_count; > extern struct class *fb_class; > > #define for_each_registered_fb(i) \ >
diff --git a/Documentation/fb/fbcon.rst b/Documentation/fb/fbcon.rst index 65ba40255137..e57a3d1d085a 100644 --- a/Documentation/fb/fbcon.rst +++ b/Documentation/fb/fbcon.rst @@ -174,6 +174,11 @@ C. Boot options displayed due to multiple CPUs, the collected line of logos is moved as a whole. +9. fbcon=logo-count:<n> + + The value 'n' overrides the number of bootup logos. 0 disables the + logo, and -1 gives the default which is the number of online CPUs. + C. Attaching, Detaching and Unloading Before going on to how to attach, detach and unload the framebuffer console, an diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c index c9235a2f42f8..bb6ae995c2e5 100644 --- a/drivers/video/fbdev/core/fbcon.c +++ b/drivers/video/fbdev/core/fbcon.c @@ -536,6 +536,13 @@ static int __init fb_console_setup(char *this_opt) fb_center_logo = true; continue; } + + if (!strncmp(options, "logo-count:", 11)) { + options += 11; + if (*options) + fb_logo_count = simple_strtol(options, &options, 0); + continue; + } } return 1; } diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index 64dd732021d8..c7ddcb72025b 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -56,6 +56,8 @@ EXPORT_SYMBOL(num_registered_fb); bool fb_center_logo __read_mostly; EXPORT_SYMBOL(fb_center_logo); +int fb_logo_count __read_mostly = -1; + static struct fb_info *get_fb_info(unsigned int idx) { struct fb_info *fb_info; @@ -620,7 +622,7 @@ int fb_prepare_logo(struct fb_info *info, int rotate) memset(&fb_logo, 0, sizeof(struct logo_data)); if (info->flags & FBINFO_MISC_TILEBLITTING || - info->fbops->owner) + info->fbops->owner || !fb_logo_count) return 0; if (info->fix.visual == FB_VISUAL_DIRECTCOLOR) { @@ -686,10 +688,14 @@ int fb_prepare_logo(struct fb_info *info, int rotate) int fb_show_logo(struct fb_info *info, int rotate) { + unsigned int count; int y; - y = fb_show_logo_line(info, rotate, fb_logo.logo, 0, - num_online_cpus()); + if (!fb_logo_count) + return 0; + + count = fb_logo_count < 0 ? num_online_cpus() : fb_logo_count; + y = fb_show_logo_line(info, rotate, fb_logo.logo, 0, count); y = fb_show_extra_logos(info, y, rotate); return y; diff --git a/include/linux/fb.h b/include/linux/fb.h index 303771264644..e37f72b2efca 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -630,6 +630,7 @@ extern int fb_new_modelist(struct fb_info *info); extern struct fb_info *registered_fb[FB_MAX]; extern int num_registered_fb; extern bool fb_center_logo; +extern int fb_logo_count; extern struct class *fb_class; #define for_each_registered_fb(i) \
Probably most useful if you want no logo at all, or if you only want one logo regardless of how many CPU cores you have. Signed-off-by: Peter Rosin <peda@axentia.se> --- Documentation/fb/fbcon.rst | 5 +++++ drivers/video/fbdev/core/fbcon.c | 7 +++++++ drivers/video/fbdev/core/fbmem.c | 12 +++++++++--- include/linux/fb.h | 1 + 4 files changed, 22 insertions(+), 3 deletions(-)