| Message ID | 20240327204450.14914-3-tzimmermann@suse.de (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | arch: Remove fbdev dependency from video helpers | expand |
Hi Thomas, On Wed, Mar 27, 2024 at 09:41:30PM +0100, Thomas Zimmermann wrote: > The per-architecture video helpers do not depend on struct fb_info > or anything else from fbdev. Remove it from the interface and replace > fb_is_primary_device() with video_is_primary_device(). The new helper > is similar in functionality, but can operate on non-fbdev devices. > > Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> > Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> > Cc: Helge Deller <deller@gmx.de> > Cc: "David S. Miller" <davem@davemloft.net> > Cc: Andreas Larsson <andreas@gaisler.com> > Cc: Thomas Gleixner <tglx@linutronix.de> > Cc: Ingo Molnar <mingo@redhat.com> > Cc: Borislav Petkov <bp@alien8.de> > Cc: Dave Hansen <dave.hansen@linux.intel.com> > Cc: x86@kernel.org > Cc: "H. Peter Anvin" <hpa@zytor.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
On 3/27/24 21:41, Thomas Zimmermann wrote: > The per-architecture video helpers do not depend on struct fb_info > or anything else from fbdev. Remove it from the interface and replace > fb_is_primary_device() with video_is_primary_device(). The new helper Since you rename this function, wouldn't something similar to device_is_primary_display() or device_is_primary_console() or is_primary_graphics_device() or is_primary_display_device() be a better name? Helge > is similar in functionality, but can operate on non-fbdev devices. > > Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> > Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> > Cc: Helge Deller <deller@gmx.de> > Cc: "David S. Miller" <davem@davemloft.net> > Cc: Andreas Larsson <andreas@gaisler.com> > Cc: Thomas Gleixner <tglx@linutronix.de> > Cc: Ingo Molnar <mingo@redhat.com> > Cc: Borislav Petkov <bp@alien8.de> > Cc: Dave Hansen <dave.hansen@linux.intel.com> > Cc: x86@kernel.org > Cc: "H. Peter Anvin" <hpa@zytor.com> > --- > arch/parisc/include/asm/fb.h | 8 +++++--- > arch/parisc/video/fbdev.c | 9 +++++---- > arch/sparc/include/asm/fb.h | 7 ++++--- > arch/sparc/video/fbdev.c | 17 ++++++++--------- > arch/x86/include/asm/fb.h | 8 +++++--- > arch/x86/video/fbdev.c | 18 +++++++----------- > drivers/video/fbdev/core/fbcon.c | 2 +- > include/asm-generic/fb.h | 11 ++++++----- > 8 files changed, 41 insertions(+), 39 deletions(-) > > diff --git a/arch/parisc/include/asm/fb.h b/arch/parisc/include/asm/fb.h > index 658a8a7dc5312..ed2a195a3e762 100644 > --- a/arch/parisc/include/asm/fb.h > +++ b/arch/parisc/include/asm/fb.h > @@ -2,11 +2,13 @@ > #ifndef _ASM_FB_H_ > #define _ASM_FB_H_ > > -struct fb_info; > +#include <linux/types.h> > + > +struct device; > > #if defined(CONFIG_STI_CORE) > -int fb_is_primary_device(struct fb_info *info); > -#define fb_is_primary_device fb_is_primary_device > +bool video_is_primary_device(struct device *dev); > +#define video_is_primary_device video_is_primary_device > #endif > > #include <asm-generic/fb.h> > diff --git a/arch/parisc/video/fbdev.c b/arch/parisc/video/fbdev.c > index e4f8ac99fc9e0..540fa0c919d59 100644 > --- a/arch/parisc/video/fbdev.c > +++ b/arch/parisc/video/fbdev.c > @@ -5,12 +5,13 @@ > * Copyright (C) 2001-2002 Thomas Bogendoerfer <tsbogend@alpha.franken.de> > */ > > -#include <linux/fb.h> > #include <linux/module.h> > > #include <video/sticore.h> > > -int fb_is_primary_device(struct fb_info *info) > +#include <asm/fb.h> > + > +bool video_is_primary_device(struct device *dev) > { > struct sti_struct *sti; > > @@ -21,6 +22,6 @@ int fb_is_primary_device(struct fb_info *info) > return true; > > /* return true if it's the default built-in framebuffer driver */ > - return (sti->dev == info->device); > + return (sti->dev == dev); > } > -EXPORT_SYMBOL(fb_is_primary_device); > +EXPORT_SYMBOL(video_is_primary_device); > diff --git a/arch/sparc/include/asm/fb.h b/arch/sparc/include/asm/fb.h > index 24440c0fda490..07f0325d6921c 100644 > --- a/arch/sparc/include/asm/fb.h > +++ b/arch/sparc/include/asm/fb.h > @@ -3,10 +3,11 @@ > #define _SPARC_FB_H_ > > #include <linux/io.h> > +#include <linux/types.h> > > #include <asm/page.h> > > -struct fb_info; > +struct device; > > #ifdef CONFIG_SPARC32 > static inline pgprot_t pgprot_framebuffer(pgprot_t prot, > @@ -18,8 +19,8 @@ static inline pgprot_t pgprot_framebuffer(pgprot_t prot, > #define pgprot_framebuffer pgprot_framebuffer > #endif > > -int fb_is_primary_device(struct fb_info *info); > -#define fb_is_primary_device fb_is_primary_device > +bool video_is_primary_device(struct device *dev); > +#define video_is_primary_device video_is_primary_device > > static inline void fb_memcpy_fromio(void *to, const volatile void __iomem *from, size_t n) > { > diff --git a/arch/sparc/video/fbdev.c b/arch/sparc/video/fbdev.c > index bff66dd1909a4..e46f0499c2774 100644 > --- a/arch/sparc/video/fbdev.c > +++ b/arch/sparc/video/fbdev.c > @@ -1,26 +1,25 @@ > // SPDX-License-Identifier: GPL-2.0 > > #include <linux/console.h> > -#include <linux/fb.h> > +#include <linux/device.h> > #include <linux/module.h> > > +#include <asm/fb.h> > #include <asm/prom.h> > > -int fb_is_primary_device(struct fb_info *info) > +bool video_is_primary_device(struct device *dev) > { > - struct device *dev = info->device; > - struct device_node *node; > + struct device_node *node = dev->of_node; > > if (console_set_on_cmdline) > - return 0; > + return false; > > - node = dev->of_node; > if (node && node == of_console_device) > - return 1; > + return true; > > - return 0; > + return false; > } > -EXPORT_SYMBOL(fb_is_primary_device); > +EXPORT_SYMBOL(video_is_primary_device); > > MODULE_DESCRIPTION("Sparc fbdev helpers"); > MODULE_LICENSE("GPL"); > diff --git a/arch/x86/include/asm/fb.h b/arch/x86/include/asm/fb.h > index c3b9582de7efd..999db33792869 100644 > --- a/arch/x86/include/asm/fb.h > +++ b/arch/x86/include/asm/fb.h > @@ -2,17 +2,19 @@ > #ifndef _ASM_X86_FB_H > #define _ASM_X86_FB_H > > +#include <linux/types.h> > + > #include <asm/page.h> > > -struct fb_info; > +struct device; > > pgprot_t pgprot_framebuffer(pgprot_t prot, > unsigned long vm_start, unsigned long vm_end, > unsigned long offset); > #define pgprot_framebuffer pgprot_framebuffer > > -int fb_is_primary_device(struct fb_info *info); > -#define fb_is_primary_device fb_is_primary_device > +bool video_is_primary_device(struct device *dev); > +#define video_is_primary_device video_is_primary_device > > #include <asm-generic/fb.h> > > diff --git a/arch/x86/video/fbdev.c b/arch/x86/video/fbdev.c > index 1dd6528cc947c..4d87ce8e257fe 100644 > --- a/arch/x86/video/fbdev.c > +++ b/arch/x86/video/fbdev.c > @@ -7,7 +7,6 @@ > * > */ > > -#include <linux/fb.h> > #include <linux/module.h> > #include <linux/pci.h> > #include <linux/vgaarb.h> > @@ -25,20 +24,17 @@ pgprot_t pgprot_framebuffer(pgprot_t prot, > } > EXPORT_SYMBOL(pgprot_framebuffer); > > -int fb_is_primary_device(struct fb_info *info) > +bool video_is_primary_device(struct device *dev) > { > - struct device *device = info->device; > - struct pci_dev *pci_dev; > + struct pci_dev *pdev; > > - if (!device || !dev_is_pci(device)) > - return 0; > + if (!dev_is_pci(dev)) > + return false; > > - pci_dev = to_pci_dev(device); > + pdev = to_pci_dev(dev); > > - if (pci_dev == vga_default_device()) > - return 1; > - return 0; > + return (pdev == vga_default_device()); > } > -EXPORT_SYMBOL(fb_is_primary_device); > +EXPORT_SYMBOL(video_is_primary_device); > > MODULE_LICENSE("GPL"); > diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c > index 46823c2e2ba12..85c5c8cbc680a 100644 > --- a/drivers/video/fbdev/core/fbcon.c > +++ b/drivers/video/fbdev/core/fbcon.c > @@ -2939,7 +2939,7 @@ void fbcon_remap_all(struct fb_info *info) > static void fbcon_select_primary(struct fb_info *info) > { > if (!map_override && primary_device == -1 && > - fb_is_primary_device(info)) { > + video_is_primary_device(info->device)) { > int i; > > printk(KERN_INFO "fbcon: %s (fb%i) is primary device\n", > diff --git a/include/asm-generic/fb.h b/include/asm-generic/fb.h > index 6ccabb400aa66..4788c1e1c6bc0 100644 > --- a/include/asm-generic/fb.h > +++ b/include/asm-generic/fb.h > @@ -10,8 +10,9 @@ > #include <linux/io.h> > #include <linux/mm_types.h> > #include <linux/pgtable.h> > +#include <linux/types.h> > > -struct fb_info; > +struct device; > > #ifndef pgprot_framebuffer > #define pgprot_framebuffer pgprot_framebuffer > @@ -23,11 +24,11 @@ static inline pgprot_t pgprot_framebuffer(pgprot_t prot, > } > #endif > > -#ifndef fb_is_primary_device > -#define fb_is_primary_device fb_is_primary_device > -static inline int fb_is_primary_device(struct fb_info *info) > +#ifndef video_is_primary_device > +#define video_is_primary_device video_is_primary_device > +static inline bool video_is_primary_device(struct device *dev) > { > - return 0; > + return false; > } > #endif >
Hi Am 28.03.24 um 12:04 schrieb Helge Deller: > On 3/27/24 21:41, Thomas Zimmermann wrote: >> The per-architecture video helpers do not depend on struct fb_info >> or anything else from fbdev. Remove it from the interface and replace >> fb_is_primary_device() with video_is_primary_device(). The new helper > > Since you rename this function, wouldn't something similar to > > device_is_primary_display() > or > device_is_primary_console() > or > is_primary_graphics_device() > or > is_primary_display_device() > > be a better name? The video_ prefix is there to signal that the code is part of the video subsystem. But there's too much code that tried to figure out a default video device. So I actually have different plans for this function. I'd like to replace it with a helper that returns the default device instead of just testing for it. Sample code for x86 is already in vgaarb.c. [1] The function's name would then be video_default_device() and return the appropriate struct device*. video_is_primary device() will be removed. This rename here is the easiest step towards the new helper. Ok? Best regards Thomas [1] https://elixir.bootlin.com/linux/v6.8/source/drivers/pci/vgaarb.c#L559 > > Helge > >> is similar in functionality, but can operate on non-fbdev devices. >> >> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> >> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> >> Cc: Helge Deller <deller@gmx.de> >> Cc: "David S. Miller" <davem@davemloft.net> >> Cc: Andreas Larsson <andreas@gaisler.com> >> Cc: Thomas Gleixner <tglx@linutronix.de> >> Cc: Ingo Molnar <mingo@redhat.com> >> Cc: Borislav Petkov <bp@alien8.de> >> Cc: Dave Hansen <dave.hansen@linux.intel.com> >> Cc: x86@kernel.org >> Cc: "H. Peter Anvin" <hpa@zytor.com> >> --- >> arch/parisc/include/asm/fb.h | 8 +++++--- >> arch/parisc/video/fbdev.c | 9 +++++---- >> arch/sparc/include/asm/fb.h | 7 ++++--- >> arch/sparc/video/fbdev.c | 17 ++++++++--------- >> arch/x86/include/asm/fb.h | 8 +++++--- >> arch/x86/video/fbdev.c | 18 +++++++----------- >> drivers/video/fbdev/core/fbcon.c | 2 +- >> include/asm-generic/fb.h | 11 ++++++----- >> 8 files changed, 41 insertions(+), 39 deletions(-) >> >> diff --git a/arch/parisc/include/asm/fb.h b/arch/parisc/include/asm/fb.h >> index 658a8a7dc5312..ed2a195a3e762 100644 >> --- a/arch/parisc/include/asm/fb.h >> +++ b/arch/parisc/include/asm/fb.h >> @@ -2,11 +2,13 @@ >> #ifndef _ASM_FB_H_ >> #define _ASM_FB_H_ >> >> -struct fb_info; >> +#include <linux/types.h> >> + >> +struct device; >> >> #if defined(CONFIG_STI_CORE) >> -int fb_is_primary_device(struct fb_info *info); >> -#define fb_is_primary_device fb_is_primary_device >> +bool video_is_primary_device(struct device *dev); >> +#define video_is_primary_device video_is_primary_device >> #endif >> >> #include <asm-generic/fb.h> >> diff --git a/arch/parisc/video/fbdev.c b/arch/parisc/video/fbdev.c >> index e4f8ac99fc9e0..540fa0c919d59 100644 >> --- a/arch/parisc/video/fbdev.c >> +++ b/arch/parisc/video/fbdev.c >> @@ -5,12 +5,13 @@ >> * Copyright (C) 2001-2002 Thomas Bogendoerfer >> <tsbogend@alpha.franken.de> >> */ >> >> -#include <linux/fb.h> >> #include <linux/module.h> >> >> #include <video/sticore.h> >> >> -int fb_is_primary_device(struct fb_info *info) >> +#include <asm/fb.h> >> + >> +bool video_is_primary_device(struct device *dev) >> { >> struct sti_struct *sti; >> >> @@ -21,6 +22,6 @@ int fb_is_primary_device(struct fb_info *info) >> return true; >> >> /* return true if it's the default built-in framebuffer driver */ >> - return (sti->dev == info->device); >> + return (sti->dev == dev); >> } >> -EXPORT_SYMBOL(fb_is_primary_device); >> +EXPORT_SYMBOL(video_is_primary_device); >> diff --git a/arch/sparc/include/asm/fb.h b/arch/sparc/include/asm/fb.h >> index 24440c0fda490..07f0325d6921c 100644 >> --- a/arch/sparc/include/asm/fb.h >> +++ b/arch/sparc/include/asm/fb.h >> @@ -3,10 +3,11 @@ >> #define _SPARC_FB_H_ >> >> #include <linux/io.h> >> +#include <linux/types.h> >> >> #include <asm/page.h> >> >> -struct fb_info; >> +struct device; >> >> #ifdef CONFIG_SPARC32 >> static inline pgprot_t pgprot_framebuffer(pgprot_t prot, >> @@ -18,8 +19,8 @@ static inline pgprot_t pgprot_framebuffer(pgprot_t >> prot, >> #define pgprot_framebuffer pgprot_framebuffer >> #endif >> >> -int fb_is_primary_device(struct fb_info *info); >> -#define fb_is_primary_device fb_is_primary_device >> +bool video_is_primary_device(struct device *dev); >> +#define video_is_primary_device video_is_primary_device >> >> static inline void fb_memcpy_fromio(void *to, const volatile void >> __iomem *from, size_t n) >> { >> diff --git a/arch/sparc/video/fbdev.c b/arch/sparc/video/fbdev.c >> index bff66dd1909a4..e46f0499c2774 100644 >> --- a/arch/sparc/video/fbdev.c >> +++ b/arch/sparc/video/fbdev.c >> @@ -1,26 +1,25 @@ >> // SPDX-License-Identifier: GPL-2.0 >> >> #include <linux/console.h> >> -#include <linux/fb.h> >> +#include <linux/device.h> >> #include <linux/module.h> >> >> +#include <asm/fb.h> >> #include <asm/prom.h> >> >> -int fb_is_primary_device(struct fb_info *info) >> +bool video_is_primary_device(struct device *dev) >> { >> - struct device *dev = info->device; >> - struct device_node *node; >> + struct device_node *node = dev->of_node; >> >> if (console_set_on_cmdline) >> - return 0; >> + return false; >> >> - node = dev->of_node; >> if (node && node == of_console_device) >> - return 1; >> + return true; >> >> - return 0; >> + return false; >> } >> -EXPORT_SYMBOL(fb_is_primary_device); >> +EXPORT_SYMBOL(video_is_primary_device); >> >> MODULE_DESCRIPTION("Sparc fbdev helpers"); >> MODULE_LICENSE("GPL"); >> diff --git a/arch/x86/include/asm/fb.h b/arch/x86/include/asm/fb.h >> index c3b9582de7efd..999db33792869 100644 >> --- a/arch/x86/include/asm/fb.h >> +++ b/arch/x86/include/asm/fb.h >> @@ -2,17 +2,19 @@ >> #ifndef _ASM_X86_FB_H >> #define _ASM_X86_FB_H >> >> +#include <linux/types.h> >> + >> #include <asm/page.h> >> >> -struct fb_info; >> +struct device; >> >> pgprot_t pgprot_framebuffer(pgprot_t prot, >> unsigned long vm_start, unsigned long vm_end, >> unsigned long offset); >> #define pgprot_framebuffer pgprot_framebuffer >> >> -int fb_is_primary_device(struct fb_info *info); >> -#define fb_is_primary_device fb_is_primary_device >> +bool video_is_primary_device(struct device *dev); >> +#define video_is_primary_device video_is_primary_device >> >> #include <asm-generic/fb.h> >> >> diff --git a/arch/x86/video/fbdev.c b/arch/x86/video/fbdev.c >> index 1dd6528cc947c..4d87ce8e257fe 100644 >> --- a/arch/x86/video/fbdev.c >> +++ b/arch/x86/video/fbdev.c >> @@ -7,7 +7,6 @@ >> * >> */ >> >> -#include <linux/fb.h> >> #include <linux/module.h> >> #include <linux/pci.h> >> #include <linux/vgaarb.h> >> @@ -25,20 +24,17 @@ pgprot_t pgprot_framebuffer(pgprot_t prot, >> } >> EXPORT_SYMBOL(pgprot_framebuffer); >> >> -int fb_is_primary_device(struct fb_info *info) >> +bool video_is_primary_device(struct device *dev) >> { >> - struct device *device = info->device; >> - struct pci_dev *pci_dev; >> + struct pci_dev *pdev; >> >> - if (!device || !dev_is_pci(device)) >> - return 0; >> + if (!dev_is_pci(dev)) >> + return false; >> >> - pci_dev = to_pci_dev(device); >> + pdev = to_pci_dev(dev); >> >> - if (pci_dev == vga_default_device()) >> - return 1; >> - return 0; >> + return (pdev == vga_default_device()); >> } >> -EXPORT_SYMBOL(fb_is_primary_device); >> +EXPORT_SYMBOL(video_is_primary_device); >> >> MODULE_LICENSE("GPL"); >> diff --git a/drivers/video/fbdev/core/fbcon.c >> b/drivers/video/fbdev/core/fbcon.c >> index 46823c2e2ba12..85c5c8cbc680a 100644 >> --- a/drivers/video/fbdev/core/fbcon.c >> +++ b/drivers/video/fbdev/core/fbcon.c >> @@ -2939,7 +2939,7 @@ void fbcon_remap_all(struct fb_info *info) >> static void fbcon_select_primary(struct fb_info *info) >> { >> if (!map_override && primary_device == -1 && >> - fb_is_primary_device(info)) { >> + video_is_primary_device(info->device)) { >> int i; >> >> printk(KERN_INFO "fbcon: %s (fb%i) is primary device\n", >> diff --git a/include/asm-generic/fb.h b/include/asm-generic/fb.h >> index 6ccabb400aa66..4788c1e1c6bc0 100644 >> --- a/include/asm-generic/fb.h >> +++ b/include/asm-generic/fb.h >> @@ -10,8 +10,9 @@ >> #include <linux/io.h> >> #include <linux/mm_types.h> >> #include <linux/pgtable.h> >> +#include <linux/types.h> >> >> -struct fb_info; >> +struct device; >> >> #ifndef pgprot_framebuffer >> #define pgprot_framebuffer pgprot_framebuffer >> @@ -23,11 +24,11 @@ static inline pgprot_t >> pgprot_framebuffer(pgprot_t prot, >> } >> #endif >> >> -#ifndef fb_is_primary_device >> -#define fb_is_primary_device fb_is_primary_device >> -static inline int fb_is_primary_device(struct fb_info *info) >> +#ifndef video_is_primary_device >> +#define video_is_primary_device video_is_primary_device >> +static inline bool video_is_primary_device(struct device *dev) >> { >> - return 0; >> + return false; >> } >> #endif >> >
On 3/28/24 14:33, Thomas Zimmermann wrote: > Am 28.03.24 um 12:04 schrieb Helge Deller: >> On 3/27/24 21:41, Thomas Zimmermann wrote: >>> The per-architecture video helpers do not depend on struct fb_info >>> or anything else from fbdev. Remove it from the interface and replace >>> fb_is_primary_device() with video_is_primary_device(). The new helper >> >> Since you rename this function, wouldn't something similar to >> >> device_is_primary_display() >> or >> device_is_primary_console() >> or >> is_primary_graphics_device() >> or >> is_primary_display_device() >> >> be a better name? > > The video_ prefix is there to signal that the code is part of the video subsystem. > > But there's too much code that tried to figure out a default video > device. So I actually have different plans for this function. I'd > like to replace it with a helper that returns the default device > instead of just testing for it. Sample code for x86 is already in > vgaarb.c. [1] The function's name would then be > video_default_device() and return the appropriate struct device*. > video_is_primary device() will be removed. This rename here is the > easiest step towards the new helper. Ok? Sounds ok. Helge
diff --git a/arch/parisc/include/asm/fb.h b/arch/parisc/include/asm/fb.h index 658a8a7dc5312..ed2a195a3e762 100644 --- a/arch/parisc/include/asm/fb.h +++ b/arch/parisc/include/asm/fb.h @@ -2,11 +2,13 @@ #ifndef _ASM_FB_H_ #define _ASM_FB_H_ -struct fb_info; +#include <linux/types.h> + +struct device; #if defined(CONFIG_STI_CORE) -int fb_is_primary_device(struct fb_info *info); -#define fb_is_primary_device fb_is_primary_device +bool video_is_primary_device(struct device *dev); +#define video_is_primary_device video_is_primary_device #endif #include <asm-generic/fb.h> diff --git a/arch/parisc/video/fbdev.c b/arch/parisc/video/fbdev.c index e4f8ac99fc9e0..540fa0c919d59 100644 --- a/arch/parisc/video/fbdev.c +++ b/arch/parisc/video/fbdev.c @@ -5,12 +5,13 @@ * Copyright (C) 2001-2002 Thomas Bogendoerfer <tsbogend@alpha.franken.de> */ -#include <linux/fb.h> #include <linux/module.h> #include <video/sticore.h> -int fb_is_primary_device(struct fb_info *info) +#include <asm/fb.h> + +bool video_is_primary_device(struct device *dev) { struct sti_struct *sti; @@ -21,6 +22,6 @@ int fb_is_primary_device(struct fb_info *info) return true; /* return true if it's the default built-in framebuffer driver */ - return (sti->dev == info->device); + return (sti->dev == dev); } -EXPORT_SYMBOL(fb_is_primary_device); +EXPORT_SYMBOL(video_is_primary_device); diff --git a/arch/sparc/include/asm/fb.h b/arch/sparc/include/asm/fb.h index 24440c0fda490..07f0325d6921c 100644 --- a/arch/sparc/include/asm/fb.h +++ b/arch/sparc/include/asm/fb.h @@ -3,10 +3,11 @@ #define _SPARC_FB_H_ #include <linux/io.h> +#include <linux/types.h> #include <asm/page.h> -struct fb_info; +struct device; #ifdef CONFIG_SPARC32 static inline pgprot_t pgprot_framebuffer(pgprot_t prot, @@ -18,8 +19,8 @@ static inline pgprot_t pgprot_framebuffer(pgprot_t prot, #define pgprot_framebuffer pgprot_framebuffer #endif -int fb_is_primary_device(struct fb_info *info); -#define fb_is_primary_device fb_is_primary_device +bool video_is_primary_device(struct device *dev); +#define video_is_primary_device video_is_primary_device static inline void fb_memcpy_fromio(void *to, const volatile void __iomem *from, size_t n) { diff --git a/arch/sparc/video/fbdev.c b/arch/sparc/video/fbdev.c index bff66dd1909a4..e46f0499c2774 100644 --- a/arch/sparc/video/fbdev.c +++ b/arch/sparc/video/fbdev.c @@ -1,26 +1,25 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/console.h> -#include <linux/fb.h> +#include <linux/device.h> #include <linux/module.h> +#include <asm/fb.h> #include <asm/prom.h> -int fb_is_primary_device(struct fb_info *info) +bool video_is_primary_device(struct device *dev) { - struct device *dev = info->device; - struct device_node *node; + struct device_node *node = dev->of_node; if (console_set_on_cmdline) - return 0; + return false; - node = dev->of_node; if (node && node == of_console_device) - return 1; + return true; - return 0; + return false; } -EXPORT_SYMBOL(fb_is_primary_device); +EXPORT_SYMBOL(video_is_primary_device); MODULE_DESCRIPTION("Sparc fbdev helpers"); MODULE_LICENSE("GPL"); diff --git a/arch/x86/include/asm/fb.h b/arch/x86/include/asm/fb.h index c3b9582de7efd..999db33792869 100644 --- a/arch/x86/include/asm/fb.h +++ b/arch/x86/include/asm/fb.h @@ -2,17 +2,19 @@ #ifndef _ASM_X86_FB_H #define _ASM_X86_FB_H +#include <linux/types.h> + #include <asm/page.h> -struct fb_info; +struct device; pgprot_t pgprot_framebuffer(pgprot_t prot, unsigned long vm_start, unsigned long vm_end, unsigned long offset); #define pgprot_framebuffer pgprot_framebuffer -int fb_is_primary_device(struct fb_info *info); -#define fb_is_primary_device fb_is_primary_device +bool video_is_primary_device(struct device *dev); +#define video_is_primary_device video_is_primary_device #include <asm-generic/fb.h> diff --git a/arch/x86/video/fbdev.c b/arch/x86/video/fbdev.c index 1dd6528cc947c..4d87ce8e257fe 100644 --- a/arch/x86/video/fbdev.c +++ b/arch/x86/video/fbdev.c @@ -7,7 +7,6 @@ * */ -#include <linux/fb.h> #include <linux/module.h> #include <linux/pci.h> #include <linux/vgaarb.h> @@ -25,20 +24,17 @@ pgprot_t pgprot_framebuffer(pgprot_t prot, } EXPORT_SYMBOL(pgprot_framebuffer); -int fb_is_primary_device(struct fb_info *info) +bool video_is_primary_device(struct device *dev) { - struct device *device = info->device; - struct pci_dev *pci_dev; + struct pci_dev *pdev; - if (!device || !dev_is_pci(device)) - return 0; + if (!dev_is_pci(dev)) + return false; - pci_dev = to_pci_dev(device); + pdev = to_pci_dev(dev); - if (pci_dev == vga_default_device()) - return 1; - return 0; + return (pdev == vga_default_device()); } -EXPORT_SYMBOL(fb_is_primary_device); +EXPORT_SYMBOL(video_is_primary_device); MODULE_LICENSE("GPL"); diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c index 46823c2e2ba12..85c5c8cbc680a 100644 --- a/drivers/video/fbdev/core/fbcon.c +++ b/drivers/video/fbdev/core/fbcon.c @@ -2939,7 +2939,7 @@ void fbcon_remap_all(struct fb_info *info) static void fbcon_select_primary(struct fb_info *info) { if (!map_override && primary_device == -1 && - fb_is_primary_device(info)) { + video_is_primary_device(info->device)) { int i; printk(KERN_INFO "fbcon: %s (fb%i) is primary device\n", diff --git a/include/asm-generic/fb.h b/include/asm-generic/fb.h index 6ccabb400aa66..4788c1e1c6bc0 100644 --- a/include/asm-generic/fb.h +++ b/include/asm-generic/fb.h @@ -10,8 +10,9 @@ #include <linux/io.h> #include <linux/mm_types.h> #include <linux/pgtable.h> +#include <linux/types.h> -struct fb_info; +struct device; #ifndef pgprot_framebuffer #define pgprot_framebuffer pgprot_framebuffer @@ -23,11 +24,11 @@ static inline pgprot_t pgprot_framebuffer(pgprot_t prot, } #endif -#ifndef fb_is_primary_device -#define fb_is_primary_device fb_is_primary_device -static inline int fb_is_primary_device(struct fb_info *info) +#ifndef video_is_primary_device +#define video_is_primary_device video_is_primary_device +static inline bool video_is_primary_device(struct device *dev) { - return 0; + return false; } #endif
The per-architecture video helpers do not depend on struct fb_info or anything else from fbdev. Remove it from the interface and replace fb_is_primary_device() with video_is_primary_device(). The new helper is similar in functionality, but can operate on non-fbdev devices. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Helge Deller <deller@gmx.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Andreas Larsson <andreas@gaisler.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: x86@kernel.org Cc: "H. Peter Anvin" <hpa@zytor.com> --- arch/parisc/include/asm/fb.h | 8 +++++--- arch/parisc/video/fbdev.c | 9 +++++---- arch/sparc/include/asm/fb.h | 7 ++++--- arch/sparc/video/fbdev.c | 17 ++++++++--------- arch/x86/include/asm/fb.h | 8 +++++--- arch/x86/video/fbdev.c | 18 +++++++----------- drivers/video/fbdev/core/fbcon.c | 2 +- include/asm-generic/fb.h | 11 ++++++----- 8 files changed, 41 insertions(+), 39 deletions(-)