On 3/27/24 21:41, Thomas Zimmermann wrote:
> The per-architecture fbdev code has no dependencies on fbdev and can
> be used for any video-related subsystem. Rename the files to 'video'.
> Use video-sti.c on parisc as the source file depends on CONFIG_STI_CORE.
>
> Further update all includes statements, includ guards, and Makefiles.
> Also update a few strings and comments to refer to video instead of
> fbdev.
>
> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: Vineet Gupta <vgupta@kernel.org>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will@kernel.org>
> Cc: Huacai Chen <chenhuacai@kernel.org>
> Cc: WANG Xuerui <kernel@xen0n.name>
> Cc: Geert Uytterhoeven <geert@linux-m68k.org>
> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
> Cc: Helge Deller <deller@gmx.de>
> Cc: Michael Ellerman <mpe@ellerman.id.au>
> Cc: Nicholas Piggin <npiggin@gmail.com>
> Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
> Cc: Rich Felker <dalias@libc.org>
> Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.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/arc/include/asm/fb.h                    |  8 --------
>   arch/arc/include/asm/video.h                 |  8 ++++++++
>   arch/arm/include/asm/fb.h                    |  6 ------
>   arch/arm/include/asm/video.h                 |  6 ++++++
>   arch/arm64/include/asm/fb.h                  | 10 ----------
>   arch/arm64/include/asm/video.h               | 10 ++++++++++
>   arch/loongarch/include/asm/{fb.h =3D> video.h} |  8 ++++----
>   arch/m68k/include/asm/{fb.h =3D> video.h}      |  8 ++++----
>   arch/mips/include/asm/{fb.h =3D> video.h}      | 12 ++++++------
>   arch/parisc/include/asm/{fb.h =3D> video.h}    |  8 ++++----
>   arch/parisc/video/Makefile                   |  2 +-
>   arch/parisc/video/{fbdev.c =3D> video-sti.c}   |  2 +-
>   arch/powerpc/include/asm/{fb.h =3D> video.h}   |  8 ++++----
>   arch/powerpc/kernel/pci-common.c             |  2 +-
>   arch/sh/include/asm/fb.h                     |  7 -------
>   arch/sh/include/asm/video.h                  |  7 +++++++
>   arch/sparc/include/asm/{fb.h =3D> video.h}     |  8 ++++----
>   arch/sparc/video/Makefile                    |  2 +-
>   arch/sparc/video/{fbdev.c =3D> video.c}        |  4 ++--
>   arch/x86/include/asm/{fb.h =3D> video.h}       |  8 ++++----
>   arch/x86/video/Makefile                      |  2 +-
>   arch/x86/video/{fbdev.c =3D> video.c}          |  3 ++-
>   include/asm-generic/Kbuild                   |  2 +-
>   include/asm-generic/{fb.h =3D> video.h}        |  6 +++---
>   include/linux/fb.h                           |  2 +-
>   25 files changed, 75 insertions(+), 74 deletions(-)
>   delete mode 100644 arch/arc/include/asm/fb.h
>   create mode 100644 arch/arc/include/asm/video.h
>   delete mode 100644 arch/arm/include/asm/fb.h
>   create mode 100644 arch/arm/include/asm/video.h
>   delete mode 100644 arch/arm64/include/asm/fb.h
>   create mode 100644 arch/arm64/include/asm/video.h
>   rename arch/loongarch/include/asm/{fb.h =3D> video.h} (86%)
>   rename arch/m68k/include/asm/{fb.h =3D> video.h} (86%)
>   rename arch/mips/include/asm/{fb.h =3D> video.h} (76%)
>   rename arch/parisc/include/asm/{fb.h =3D> video.h} (68%)
>   rename arch/parisc/video/{fbdev.c =3D> video-sti.c} (96%)
>   rename arch/powerpc/include/asm/{fb.h =3D> video.h} (76%)
>   delete mode 100644 arch/sh/include/asm/fb.h
>   create mode 100644 arch/sh/include/asm/video.h
>   rename arch/sparc/include/asm/{fb.h =3D> video.h} (89%)
>   rename arch/sparc/video/{fbdev.c =3D> video.c} (86%)
>   rename arch/x86/include/asm/{fb.h =3D> video.h} (77%)
>   rename arch/x86/video/{fbdev.c =3D> video.c} (97%)
>   rename include/asm-generic/{fb.h =3D> video.h} (96%)
>
> diff --git a/arch/arc/include/asm/fb.h b/arch/arc/include/asm/fb.h
> deleted file mode 100644
> index 9c2383d29cbb9..0000000000000
> --- a/arch/arc/include/asm/fb.h
> +++ /dev/null
> @@ -1,8 +0,0 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> -
> -#ifndef _ASM_FB_H_
> -#define _ASM_FB_H_
> -
> -#include <asm-generic/fb.h>
> -
> -#endif /* _ASM_FB_H_ */
> diff --git a/arch/arc/include/asm/video.h b/arch/arc/include/asm/video.h
> new file mode 100644
> index 0000000000000..8ff7263727fe7
> --- /dev/null
> +++ b/arch/arc/include/asm/video.h
> @@ -0,0 +1,8 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +
> +#ifndef _ASM_VIDEO_H_
> +#define _ASM_VIDEO_H_
> +
> +#include <asm-generic/video.h>
> +
> +#endif /* _ASM_VIDEO_H_ */

I wonder, since that file simply #includes the generic version,
wasn't there a possibility that kbuild could symlink
the generic version for us?
Does it need to be mandatory in include/asm-generic/Kbuild ?
Same applies to a few other files below.

Helge



> diff --git a/arch/arm/include/asm/fb.h b/arch/arm/include/asm/fb.h
> deleted file mode 100644
> index ce20a43c30339..0000000000000
> --- a/arch/arm/include/asm/fb.h
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -#ifndef _ASM_FB_H_
> -#define _ASM_FB_H_
> -
> -#include <asm-generic/fb.h>
> -
> -#endif /* _ASM_FB_H_ */
> diff --git a/arch/arm/include/asm/video.h b/arch/arm/include/asm/video.h
> new file mode 100644
> index 0000000000000..f570565366e67
> --- /dev/null
> +++ b/arch/arm/include/asm/video.h
> @@ -0,0 +1,6 @@
> +#ifndef _ASM_VIDEO_H_
> +#define _ASM_VIDEO_H_
> +
> +#include <asm-generic/video.h>
> +
> +#endif /* _ASM_VIDEO_H_ */
> diff --git a/arch/arm64/include/asm/fb.h b/arch/arm64/include/asm/fb.h
> deleted file mode 100644
> index 1a495d8fb2ce0..0000000000000
> --- a/arch/arm64/include/asm/fb.h
> +++ /dev/null
> @@ -1,10 +0,0 @@
> -/* SPDX-License-Identifier: GPL-2.0-only */
> -/*
> - * Copyright (C) 2012 ARM Ltd.
> - */
> -#ifndef __ASM_FB_H_
> -#define __ASM_FB_H_
> -
> -#include <asm-generic/fb.h>
> -
> -#endif /* __ASM_FB_H_ */
> diff --git a/arch/arm64/include/asm/video.h b/arch/arm64/include/asm/vid=
eo.h
> new file mode 100644
> index 0000000000000..fe0e74983f4d9
> --- /dev/null
> +++ b/arch/arm64/include/asm/video.h
> @@ -0,0 +1,10 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * Copyright (C) 2012 ARM Ltd.
> + */
> +#ifndef __ASM_VIDEO_H_
> +#define __ASM_VIDEO_H_
> +
> +#include <asm-generic/video.h>
> +
> +#endif /* __ASM_VIDEO_H_ */
> diff --git a/arch/loongarch/include/asm/fb.h b/arch/loongarch/include/as=
m/video.h
> similarity index 86%
> rename from arch/loongarch/include/asm/fb.h
> rename to arch/loongarch/include/asm/video.h
> index 0b218b10a9ec3..9f76845f2d4fd 100644
> --- a/arch/loongarch/include/asm/fb.h
> +++ b/arch/loongarch/include/asm/video.h
> @@ -2,8 +2,8 @@
>   /*
>    * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
>    */
> -#ifndef _ASM_FB_H_
> -#define _ASM_FB_H_
> +#ifndef _ASM_VIDEO_H_
> +#define _ASM_VIDEO_H_
>
>   #include <linux/compiler.h>
>   #include <linux/string.h>
> @@ -26,6 +26,6 @@ static inline void fb_memset_io(volatile void __iomem =
*addr, int c, size_t n)
>   }
>   #define fb_memset fb_memset_io
>
> -#include <asm-generic/fb.h>
> +#include <asm-generic/video.h>
>
> -#endif /* _ASM_FB_H_ */
> +#endif /* _ASM_VIDEO_H_ */
> diff --git a/arch/m68k/include/asm/fb.h b/arch/m68k/include/asm/video.h
> similarity index 86%
> rename from arch/m68k/include/asm/fb.h
> rename to arch/m68k/include/asm/video.h
> index 9941b7434b696..6cf2194c413d8 100644
> --- a/arch/m68k/include/asm/fb.h
> +++ b/arch/m68k/include/asm/video.h
> @@ -1,6 +1,6 @@
>   /* SPDX-License-Identifier: GPL-2.0 */
> -#ifndef _ASM_FB_H_
> -#define _ASM_FB_H_
> +#ifndef _ASM_VIDEO_H_
> +#define _ASM_VIDEO_H_
>
>   #include <asm/page.h>
>   #include <asm/setup.h>
> @@ -27,6 +27,6 @@ static inline pgprot_t pgprot_framebuffer(pgprot_t pro=
t,
>   }
>   #define pgprot_framebuffer pgprot_framebuffer
>
> -#include <asm-generic/fb.h>
> +#include <asm-generic/video.h>
>
> -#endif /* _ASM_FB_H_ */
> +#endif /* _ASM_VIDEO_H_ */
> diff --git a/arch/mips/include/asm/fb.h b/arch/mips/include/asm/video.h
> similarity index 76%
> rename from arch/mips/include/asm/fb.h
> rename to arch/mips/include/asm/video.h
> index d98d6681d64ec..007c106d980fd 100644
> --- a/arch/mips/include/asm/fb.h
> +++ b/arch/mips/include/asm/video.h
> @@ -1,5 +1,5 @@
> -#ifndef _ASM_FB_H_
> -#define _ASM_FB_H_
> +#ifndef _ASM_VIDEO_H_
> +#define _ASM_VIDEO_H_
>
>   #include <asm/page.h>
>
> @@ -13,8 +13,8 @@ static inline pgprot_t pgprot_framebuffer(pgprot_t pro=
t,
>
>   /*
>    * MIPS doesn't define __raw_ I/O macros, so the helpers
> - * in <asm-generic/fb.h> don't generate fb_readq() and
> - * fb_write(). We have to provide them here.
> + * in <asm-generic/video.h> don't generate fb_readq() and
> + * fb_writeq(). We have to provide them here.
>    *
>    * TODO: Convert MIPS to generic I/O. The helpers below can
>    *       then be removed.
> @@ -33,6 +33,6 @@ static inline void fb_writeq(u64 b, volatile void __io=
mem *addr)
>   #define fb_writeq fb_writeq
>   #endif
>
> -#include <asm-generic/fb.h>
> +#include <asm-generic/video.h>
>
> -#endif /* _ASM_FB_H_ */
> +#endif /* _ASM_VIDEO_H_ */
> diff --git a/arch/parisc/include/asm/fb.h b/arch/parisc/include/asm/vide=
o.h
> similarity index 68%
> rename from arch/parisc/include/asm/fb.h
> rename to arch/parisc/include/asm/video.h
> index ed2a195a3e762..c5dff3223194a 100644
> --- a/arch/parisc/include/asm/fb.h
> +++ b/arch/parisc/include/asm/video.h
> @@ -1,6 +1,6 @@
>   /* SPDX-License-Identifier: GPL-2.0 */
> -#ifndef _ASM_FB_H_
> -#define _ASM_FB_H_
> +#ifndef _ASM_VIDEO_H_
> +#define _ASM_VIDEO_H_
>
>   #include <linux/types.h>
>
> @@ -11,6 +11,6 @@ bool video_is_primary_device(struct device *dev);
>   #define video_is_primary_device video_is_primary_device
>   #endif
>
> -#include <asm-generic/fb.h>
> +#include <asm-generic/video.h>
>
> -#endif /* _ASM_FB_H_ */
> +#endif /* _ASM_VIDEO_H_ */
> diff --git a/arch/parisc/video/Makefile b/arch/parisc/video/Makefile
> index 16a73cce46612..b5db5b42880f8 100644
> --- a/arch/parisc/video/Makefile
> +++ b/arch/parisc/video/Makefile
> @@ -1,3 +1,3 @@
>   # SPDX-License-Identifier: GPL-2.0-only
>
> -obj-$(CONFIG_STI_CORE) +=3D fbdev.o
> +obj-$(CONFIG_STI_CORE) +=3D video-sti.o
> diff --git a/arch/parisc/video/fbdev.c b/arch/parisc/video/video-sti.c
> similarity index 96%
> rename from arch/parisc/video/fbdev.c
> rename to arch/parisc/video/video-sti.c
> index 540fa0c919d59..564661e87093c 100644
> --- a/arch/parisc/video/fbdev.c
> +++ b/arch/parisc/video/video-sti.c
> @@ -9,7 +9,7 @@
>
>   #include <video/sticore.h>
>
> -#include <asm/fb.h>
> +#include <asm/video.h>
>
>   bool video_is_primary_device(struct device *dev)
>   {
> diff --git a/arch/powerpc/include/asm/fb.h b/arch/powerpc/include/asm/vi=
deo.h
> similarity index 76%
> rename from arch/powerpc/include/asm/fb.h
> rename to arch/powerpc/include/asm/video.h
> index c0c5d1df7ad1e..e1770114ffc36 100644
> --- a/arch/powerpc/include/asm/fb.h
> +++ b/arch/powerpc/include/asm/video.h
> @@ -1,6 +1,6 @@
>   /* SPDX-License-Identifier: GPL-2.0 */
> -#ifndef _ASM_FB_H_
> -#define _ASM_FB_H_
> +#ifndef _ASM_VIDEO_H_
> +#define _ASM_VIDEO_H_
>
>   #include <asm/page.h>
>
> @@ -12,6 +12,6 @@ static inline pgprot_t pgprot_framebuffer(pgprot_t pro=
t,
>   }
>   #define pgprot_framebuffer pgprot_framebuffer
>
> -#include <asm-generic/fb.h>
> +#include <asm-generic/video.h>
>
> -#endif /* _ASM_FB_H_ */
> +#endif /* _ASM_VIDEO_H_ */
> diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-=
common.c
> index d95a48eff412e..eac84d687b53f 100644
> --- a/arch/powerpc/kernel/pci-common.c
> +++ b/arch/powerpc/kernel/pci-common.c
> @@ -517,7 +517,7 @@ int pci_iobar_pfn(struct pci_dev *pdev, int bar, str=
uct vm_area_struct *vma)
>   }
>
>   /*
> - * This one is used by /dev/mem and fbdev who have no clue about the
> + * This one is used by /dev/mem and video who have no clue about the
>    * PCI device, it tries to find the PCI device first and calls the
>    * above routine
>    */
> diff --git a/arch/sh/include/asm/fb.h b/arch/sh/include/asm/fb.h
> deleted file mode 100644
> index 19df13ee9ca73..0000000000000
> --- a/arch/sh/include/asm/fb.h
> +++ /dev/null
> @@ -1,7 +0,0 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> -#ifndef _ASM_FB_H_
> -#define _ASM_FB_H_
> -
> -#include <asm-generic/fb.h>
> -
> -#endif /* _ASM_FB_H_ */
> diff --git a/arch/sh/include/asm/video.h b/arch/sh/include/asm/video.h
> new file mode 100644
> index 0000000000000..14f49934a247a
> --- /dev/null
> +++ b/arch/sh/include/asm/video.h
> @@ -0,0 +1,7 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +#ifndef _ASM_VIDEO_H_
> +#define _ASM_VIDEO_H_
> +
> +#include <asm-generic/video.h>
> +
> +#endif /* _ASM_VIDEO_H_ */
> diff --git a/arch/sparc/include/asm/fb.h b/arch/sparc/include/asm/video.=
h
> similarity index 89%
> rename from arch/sparc/include/asm/fb.h
> rename to arch/sparc/include/asm/video.h
> index 07f0325d6921c..a6f48f52db584 100644
> --- a/arch/sparc/include/asm/fb.h
> +++ b/arch/sparc/include/asm/video.h
> @@ -1,6 +1,6 @@
>   /* SPDX-License-Identifier: GPL-2.0 */
> -#ifndef _SPARC_FB_H_
> -#define _SPARC_FB_H_
> +#ifndef _SPARC_VIDEO_H_
> +#define _SPARC_VIDEO_H_
>
>   #include <linux/io.h>
>   #include <linux/types.h>
> @@ -40,6 +40,6 @@ static inline void fb_memset_io(volatile void __iomem =
*addr, int c, size_t n)
>   }
>   #define fb_memset fb_memset_io
>
> -#include <asm-generic/fb.h>
> +#include <asm-generic/video.h>
>
> -#endif /* _SPARC_FB_H_ */
> +#endif /* _SPARC_VIDEO_H_ */
> diff --git a/arch/sparc/video/Makefile b/arch/sparc/video/Makefile
> index 9dd82880a027a..fdf83a408d750 100644
> --- a/arch/sparc/video/Makefile
> +++ b/arch/sparc/video/Makefile
> @@ -1,3 +1,3 @@
>   # SPDX-License-Identifier: GPL-2.0-only
>
> -obj-y	+=3D fbdev.o
> +obj-y	+=3D video.o
> diff --git a/arch/sparc/video/fbdev.c b/arch/sparc/video/video.c
> similarity index 86%
> rename from arch/sparc/video/fbdev.c
> rename to arch/sparc/video/video.c
> index e46f0499c2774..2414380caadc9 100644
> --- a/arch/sparc/video/fbdev.c
> +++ b/arch/sparc/video/video.c
> @@ -4,8 +4,8 @@
>   #include <linux/device.h>
>   #include <linux/module.h>
>
> -#include <asm/fb.h>
>   #include <asm/prom.h>
> +#include <asm/video.h>
>
>   bool video_is_primary_device(struct device *dev)
>   {
> @@ -21,5 +21,5 @@ bool video_is_primary_device(struct device *dev)
>   }
>   EXPORT_SYMBOL(video_is_primary_device);
>
> -MODULE_DESCRIPTION("Sparc fbdev helpers");
> +MODULE_DESCRIPTION("Sparc video helpers");
>   MODULE_LICENSE("GPL");
> diff --git a/arch/x86/include/asm/fb.h b/arch/x86/include/asm/video.h
> similarity index 77%
> rename from arch/x86/include/asm/fb.h
> rename to arch/x86/include/asm/video.h
> index 999db33792869..0950c9535fae9 100644
> --- a/arch/x86/include/asm/fb.h
> +++ b/arch/x86/include/asm/video.h
> @@ -1,6 +1,6 @@
>   /* SPDX-License-Identifier: GPL-2.0 */
> -#ifndef _ASM_X86_FB_H
> -#define _ASM_X86_FB_H
> +#ifndef _ASM_X86_VIDEO_H
> +#define _ASM_X86_VIDEO_H
>
>   #include <linux/types.h>
>
> @@ -16,6 +16,6 @@ pgprot_t pgprot_framebuffer(pgprot_t prot,
>   bool video_is_primary_device(struct device *dev);
>   #define video_is_primary_device video_is_primary_device
>
> -#include <asm-generic/fb.h>
> +#include <asm-generic/video.h>
>
> -#endif /* _ASM_X86_FB_H */
> +#endif /* _ASM_X86_VIDEO_H */
> diff --git a/arch/x86/video/Makefile b/arch/x86/video/Makefile
> index 9dd82880a027a..fdf83a408d750 100644
> --- a/arch/x86/video/Makefile
> +++ b/arch/x86/video/Makefile
> @@ -1,3 +1,3 @@
>   # SPDX-License-Identifier: GPL-2.0-only
>
> -obj-y	+=3D fbdev.o
> +obj-y	+=3D video.o
> diff --git a/arch/x86/video/fbdev.c b/arch/x86/video/video.c
> similarity index 97%
> rename from arch/x86/video/fbdev.c
> rename to arch/x86/video/video.c
> index 4d87ce8e257fe..81fc97a2a837a 100644
> --- a/arch/x86/video/fbdev.c
> +++ b/arch/x86/video/video.c
> @@ -10,7 +10,8 @@
>   #include <linux/module.h>
>   #include <linux/pci.h>
>   #include <linux/vgaarb.h>
> -#include <asm/fb.h>
> +
> +#include <asm/video.h>
>
>   pgprot_t pgprot_framebuffer(pgprot_t prot,
>   			    unsigned long vm_start, unsigned long vm_end,
> diff --git a/include/asm-generic/Kbuild b/include/asm-generic/Kbuild
> index d436bee4d129d..b20fa25a7e8d8 100644
> --- a/include/asm-generic/Kbuild
> +++ b/include/asm-generic/Kbuild
> @@ -22,7 +22,6 @@ mandatory-y +=3D dma-mapping.h
>   mandatory-y +=3D dma.h
>   mandatory-y +=3D emergency-restart.h
>   mandatory-y +=3D exec.h
> -mandatory-y +=3D fb.h
>   mandatory-y +=3D ftrace.h
>   mandatory-y +=3D futex.h
>   mandatory-y +=3D hardirq.h
> @@ -62,5 +61,6 @@ mandatory-y +=3D uaccess.h
>   mandatory-y +=3D unaligned.h
>   mandatory-y +=3D vermagic.h
>   mandatory-y +=3D vga.h
> +mandatory-y +=3D video.h
>   mandatory-y +=3D word-at-a-time.h
>   mandatory-y +=3D xor.h
> diff --git a/include/asm-generic/fb.h b/include/asm-generic/video.h
> similarity index 96%
> rename from include/asm-generic/fb.h
> rename to include/asm-generic/video.h
> index 4788c1e1c6bc0..b1da2309d9434 100644
> --- a/include/asm-generic/fb.h
> +++ b/include/asm-generic/video.h
> @@ -1,7 +1,7 @@
>   /* SPDX-License-Identifier: GPL-2.0 */
>
> -#ifndef __ASM_GENERIC_FB_H_
> -#define __ASM_GENERIC_FB_H_
> +#ifndef __ASM_GENERIC_VIDEO_H_
> +#define __ASM_GENERIC_VIDEO_H_
>
>   /*
>    * Only include this header file from your architecture's <asm/fb.h>.
> @@ -133,4 +133,4 @@ static inline void fb_memset_io(volatile void __iome=
m *addr, int c, size_t n)
>   #define fb_memset fb_memset_io
>   #endif
>
> -#endif /* __ASM_GENERIC_FB_H_ */
> +#endif /* __ASM_GENERIC_VIDEO_H_ */
> diff --git a/include/linux/fb.h b/include/linux/fb.h
> index 708e6a177b1be..1f23e0c505424 100644
> --- a/include/linux/fb.h
> +++ b/include/linux/fb.h
> @@ -12,7 +12,7 @@
>   #include <linux/types.h>
>   #include <linux/workqueue.h>
>
> -#include <asm/fb.h>
> +#include <asm/video.h>
>
>   struct backlight_device;
>   struct device;