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SubjectRe: [PATCH 29/33] fbcon: replace FB_EVENT_MODE_CHANGE/_ALL with direct calls
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Op 20-05-2019 om 10:22 schreef Daniel Vetter:
> Create a new wrapper function for this, feels like there's some
> refactoring room here between the two modes.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Daniel Thompson <daniel.thompson@linaro.org>
> Cc: Jingoo Han <jingoohan1@gmail.com>
> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: Hans de Goede <hdegoede@redhat.com>
> Cc: Yisheng Xie <ysxie@foxmail.com>
> Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
> Cc: Peter Rosin <peda@axentia.se>
> Cc: Mikulas Patocka <mpatocka@redhat.com>
> Cc: linux-fbdev@vger.kernel.org
> ---
> drivers/video/backlight/lcd.c | 2 --
> drivers/video/fbdev/core/fbcon.c | 15 +++++++++------
> drivers/video/fbdev/core/fbmem.c | 13 ++-----------
> drivers/video/fbdev/sh_mobile_lcdcfb.c | 11 +----------
> include/linux/fb.h | 4 ----
> include/linux/fbcon.h | 2 ++
> 6 files changed, 14 insertions(+), 33 deletions(-)
>
> diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c
> index 4b40c6a4d441..16298041b141 100644
> --- a/drivers/video/backlight/lcd.c
> +++ b/drivers/video/backlight/lcd.c
> @@ -32,8 +32,6 @@ static int fb_notifier_callback(struct notifier_block *self,
> /* If we aren't interested in this event, skip it immediately ... */
> switch (event) {
> case FB_EVENT_BLANK:
> - case FB_EVENT_MODE_CHANGE:
> - case FB_EVENT_MODE_CHANGE_ALL:
> case FB_EARLY_EVENT_BLANK:
> case FB_R_EARLY_EVENT_BLANK:
> break;

Below it performs a call to set_mode() if it's none of the blanking events; it can be removed. :)

> diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
> index c1a7476e980f..8cc62d340387 100644
> --- a/drivers/video/fbdev/core/fbcon.c
> +++ b/drivers/video/fbdev/core/fbcon.c
> @@ -3005,6 +3005,15 @@ static void fbcon_set_all_vcs(struct fb_info *info)
> fbcon_modechanged(info);
> }
>
> +
> +void fbcon_update_vcs(struct fb_info *info, bool all)
> +{
> + if (all)
> + fbcon_set_all_vcs(info);
> + else
> + fbcon_modechanged(info);
> +}
> +
> int fbcon_mode_deleted(struct fb_info *info,
> struct fb_videomode *mode)
> {
> @@ -3314,12 +3323,6 @@ static int fbcon_event_notify(struct notifier_block *self,
> int idx, ret = 0;
>
> switch(action) {
> - case FB_EVENT_MODE_CHANGE:
> - fbcon_modechanged(info);
> - break;
> - case FB_EVENT_MODE_CHANGE_ALL:
> - fbcon_set_all_vcs(info);
> - break;
> case FB_EVENT_SET_CONSOLE_MAP:
> /* called with console lock held */
> con2fb = event->data;
> diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
> index cbd58ba8a59d..55b88163edc2 100644
> --- a/drivers/video/fbdev/core/fbmem.c
> +++ b/drivers/video/fbdev/core/fbmem.c
> @@ -1039,17 +1039,8 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var)
> !list_empty(&info->modelist))
> ret = fb_add_videomode(&mode, &info->modelist);
>
> - if (!ret && (flags & FBINFO_MISC_USEREVENT)) {
> - struct fb_event event;
> - int evnt = (activate & FB_ACTIVATE_ALL) ?
> - FB_EVENT_MODE_CHANGE_ALL :
> - FB_EVENT_MODE_CHANGE;
> -
> - info->flags &= ~FBINFO_MISC_USEREVENT;
> - event.info = info;
> - event.data = &mode;
> - fb_notifier_call_chain(evnt, &event);
> - }
> + if (!ret && (flags & FBINFO_MISC_USEREVENT))
> + fbcon_update_vcs(info, activate & FB_ACTIVATE_ALL);
>
> return ret;
> }
> diff --git a/drivers/video/fbdev/sh_mobile_lcdcfb.c b/drivers/video/fbdev/sh_mobile_lcdcfb.c
> index 0d7a044852d7..bb1a610d0363 100644
> --- a/drivers/video/fbdev/sh_mobile_lcdcfb.c
> +++ b/drivers/video/fbdev/sh_mobile_lcdcfb.c
> @@ -1776,8 +1776,6 @@ static void sh_mobile_fb_reconfig(struct fb_info *info)
> struct sh_mobile_lcdc_chan *ch = info->par;
> struct fb_var_screeninfo var;
> struct fb_videomode mode;
> - struct fb_event event;
> - int evnt = FB_EVENT_MODE_CHANGE_ALL;
>
> if (ch->use_count > 1 || (ch->use_count == 1 && !info->fbcon_par))
> /* More framebuffer users are active */
> @@ -1799,14 +1797,7 @@ static void sh_mobile_fb_reconfig(struct fb_info *info)
> /* Couldn't reconfigure, hopefully, can continue as before */
> return;
>
> - /*
> - * fb_set_var() calls the notifier change internally, only if
> - * FBINFO_MISC_USEREVENT flag is set. Since we do not want to fake a
> - * user event, we have to call the chain ourselves.
> - */
> - event.info = info;
> - event.data = &ch->display.mode;
> - fb_notifier_call_chain(evnt, &event);
> + fbcon_update_vcs(info, true);
> }
>
> /*
> diff --git a/include/linux/fb.h b/include/linux/fb.h
> index 4b9b882f8f52..54d6bee09121 100644
> --- a/include/linux/fb.h
> +++ b/include/linux/fb.h
> @@ -124,16 +124,12 @@ struct fb_cursor_user {
> * Register/unregister for framebuffer events
> */
>
> -/* The resolution of the passed in fb_info about to change */
> -#define FB_EVENT_MODE_CHANGE 0x01
> /* CONSOLE-SPECIFIC: get console to framebuffer mapping */
> #define FB_EVENT_GET_CONSOLE_MAP 0x07
> /* CONSOLE-SPECIFIC: set console to framebuffer mapping */
> #define FB_EVENT_SET_CONSOLE_MAP 0x08
> /* A display blank is requested */
> #define FB_EVENT_BLANK 0x09
> -/* Private modelist is to be replaced */
> -#define FB_EVENT_MODE_CHANGE_ALL 0x0B
> /* CONSOLE-SPECIFIC: remap all consoles to new fb - for vga_switcheroo */
> #define FB_EVENT_REMAP_ALL_CONSOLE 0x0F
> /* A hardware display blank early change occurred */
> diff --git a/include/linux/fbcon.h b/include/linux/fbcon.h
> index 90e196c835dd..daaa97b0c9e6 100644
> --- a/include/linux/fbcon.h
> +++ b/include/linux/fbcon.h
> @@ -15,6 +15,7 @@ void fbcon_new_modelist(struct fb_info *info);
> void fbcon_get_requirement(struct fb_info *info,
> struct fb_blit_caps *caps);
> void fbcon_fb_blanked(struct fb_info *info, int blank);
> +void fbcon_update_vcs(struct fb_info *info, bool all);
> #else
> static inline void fb_console_init(void) {}
> static inline void fb_console_exit(void) {}
> @@ -29,6 +30,7 @@ void fbcon_new_modelist(struct fb_info *info) {}
> void fbcon_get_requirement(struct fb_info *info,
> struct fb_blit_caps *caps) {}
> void fbcon_fb_blanked(struct fb_info *info, int blank) {}
> +void fbcon_update_vcs(struct fb_info *info, bool all) {}
> #endif
>
> #endif /* _LINUX_FBCON_H */


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