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Date: Tue, 28 May 2019 11:03:00 +0200
From: Daniel Vetter <daniel.vetter@...ll.ch>
To: LKML <linux-kernel@...r.kernel.org>
Cc: DRI Development <dri-devel@...ts.freedesktop.org>,
Intel Graphics Development <intel-gfx@...ts.freedesktop.org>,
linux-fbdev@...r.kernel.org,
Daniel Thompson <daniel.thompson@...aro.org>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
Daniel Vetter <daniel.vetter@...ll.ch>,
Lukas Wunner <lukas@...ner.de>,
Daniel Vetter <daniel.vetter@...el.com>,
Sam Ravnborg <sam@...nborg.org>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
Maxime Ripard <maxime.ripard@...tlin.com>,
Sean Paul <sean@...rly.run>,
Hans de Goede <hdegoede@...hat.com>,
Yisheng Xie <ysxie@...mail.com>
Subject: [PATCH 29/33] vgaswitcheroo: call fbcon_remap_all directly
While at it, clean up the interface a bit and push the console locking
into fbcon.c.
v2: Remove now outdated comment (Lukas).
v3: Forgot to add static inline to the dummy function.
Acked-by: Lukas Wunner <lukas@...ner.de>
Signed-off-by: Daniel Vetter <daniel.vetter@...el.com>
Reviewed-by: Sam Ravnborg <sam@...nborg.org>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
Cc: Lukas Wunner <lukas@...ner.de>
Cc: David Airlie <airlied@...ux.ie>
Cc: Daniel Vetter <daniel@...ll.ch>
Cc: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
Cc: Maxime Ripard <maxime.ripard@...tlin.com>
Cc: Sean Paul <sean@...rly.run>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Cc: Hans de Goede <hdegoede@...hat.com>
Cc: Yisheng Xie <ysxie@...mail.com>
Cc: linux-fbdev@...r.kernel.org
---
drivers/gpu/vga/vga_switcheroo.c | 11 +++--------
drivers/video/fbdev/core/fbcon.c | 14 +++++---------
include/linux/fb.h | 2 --
include/linux/fbcon.h | 2 ++
4 files changed, 10 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c
index a132c37d7334..65d7541c413a 100644
--- a/drivers/gpu/vga/vga_switcheroo.c
+++ b/drivers/gpu/vga/vga_switcheroo.c
@@ -35,6 +35,7 @@
#include <linux/debugfs.h>
#include <linux/fb.h>
#include <linux/fs.h>
+#include <linux/fbcon.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/pm_domain.h>
@@ -736,14 +737,8 @@ static int vga_switchto_stage2(struct vga_switcheroo_client *new_client)
if (!active->driver_power_control)
set_audio_state(active->id, VGA_SWITCHEROO_OFF);
- if (new_client->fb_info) {
- struct fb_event event;
-
- console_lock();
- event.info = new_client->fb_info;
- fb_notifier_call_chain(FB_EVENT_REMAP_ALL_CONSOLE, &event);
- console_unlock();
- }
+ if (new_client->fb_info)
+ fbcon_remap_all(new_client->fb_info);
mutex_lock(&vgasr_priv.mux_hw_lock);
ret = vgasr_priv.handler->switchto(new_client->id);
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index e98551f96138..158b9d5233e1 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -3149,17 +3149,16 @@ void fbcon_fb_unregistered(struct fb_info *info)
do_unregister_con_driver(&fb_con);
}
-/* called with console_lock held */
-static void fbcon_remap_all(int idx)
+void fbcon_remap_all(struct fb_info *info)
{
- int i;
-
- WARN_CONSOLE_UNLOCKED();
+ int i, idx = info->node;
+ console_lock();
if (deferred_takeover) {
for (i = first_fb_vc; i <= last_fb_vc; i++)
con2fb_map_boot[i] = idx;
fbcon_map_override();
+ console_unlock();
return;
}
@@ -3172,6 +3171,7 @@ static void fbcon_remap_all(int idx)
first_fb_vc + 1, last_fb_vc + 1);
info_idx = idx;
}
+ console_unlock();
}
#ifdef CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY
@@ -3337,10 +3337,6 @@ static int fbcon_event_notify(struct notifier_block *self,
con2fb = event->data;
con2fb->framebuffer = con2fb_map[con2fb->console - 1];
break;
- case FB_EVENT_REMAP_ALL_CONSOLE:
- idx = info->node;
- fbcon_remap_all(idx);
- break;
}
return ret;
}
diff --git a/include/linux/fb.h b/include/linux/fb.h
index f9c212f9b661..25e4b885f5b3 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -139,8 +139,6 @@ struct fb_cursor_user {
#define FB_EVENT_SET_CONSOLE_MAP 0x08
/* A display blank is requested */
#define FB_EVENT_BLANK 0x09
-/* 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 */
#define FB_EARLY_EVENT_BLANK 0x10
/* A hardware display blank revert early change occurred */
diff --git a/include/linux/fbcon.h b/include/linux/fbcon.h
index de31eeb22c97..69f900d289b2 100644
--- a/include/linux/fbcon.h
+++ b/include/linux/fbcon.h
@@ -16,6 +16,7 @@ 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);
+void fbcon_remap_all(struct fb_info *info);
#else
static inline void fb_console_init(void) {}
static inline void fb_console_exit(void) {}
@@ -31,6 +32,7 @@ static inline void fbcon_get_requirement(struct fb_info *info,
struct fb_blit_caps *caps) {}
static inline void fbcon_fb_blanked(struct fb_info *info, int blank) {}
static inline void fbcon_update_vcs(struct fb_info *info, bool all) {}
+static inline void fbcon_remap_all(struct fb_info *info) {}
#endif
#endif /* _LINUX_FBCON_H */
--
2.20.1
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