Messages in this thread | | | Date | Thu, 28 Mar 2024 12:04:14 +0100 | Subject | Re: [PATCH v2 2/3] arch: Remove struct fb_info from video helpers | From | Helge Deller <> |
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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.frankende> > */ > > -#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 >
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