From: Thomas Zimmermann <tzimmermann@suse.de>
To: deller@gmx.de, geert@linux-m68k.org, javierm@redhat.com,
daniel@ffwll.ch, vgupta@kernel.org, chenhuacai@kernel.org,
kernel@xen0n.name, davem@davemloft.net,
James.Bottomley@HansenPartnership.com, arnd@arndb.de,
sam@ravnborg.org, suijingfeng@loongson.cn
Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-arch@vger.kernel.org, linux-snps-arc@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org,
loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org,
sparclinux@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-parisc@vger.kernel.org,
Thomas Zimmermann <tzimmermann@suse.de>
Subject: [PATCH v7 0/7] fbdev: Move framebuffer I/O helpers to <asm/fb.h>
Date: Fri, 12 May 2023 12:24:37 +0200 [thread overview]
Message-ID: <20230512102444.5438-1-tzimmermann@suse.de> (raw)
Fbdev provides helpers for framebuffer I/O, such as fb_readl(),
fb_writel() or fb_memcpy_to_fb(). The implementation of each helper
depends on the architecture, but they are all equivalent to regular
I/O functions of similar names. So use regular functions instead and
move all helpers into <asm-generic/fb.h>
The first two patch are driver cleanups.
Until now, <linux/fb.h> contained an include of <asm/io.h>. As this
will go away, patches 3 to 5 prepare include statements in the various
drivers. Source files that use regular I/O helpers, such as readl(),
now include <linux/io.h>. Source files that use framebuffer I/O
helpers, such as fb_readl(), now include <linux/fb.h>.
Patch 6 replaces the architecture-based if-else branching in
<linux/fb.h> by helpers in <asm-generic/fb.h>. All helpers use Linux'
existing I/O functions.
Patch 7 harmonizes naming among fbdev and existing I/O functions.
The patchset has been built for a variety of platforms, such as x86-64,
arm, aarch64, ppc64, parisc, m64k, mips and sparc.
v7:
* fix hitfb build warnings (kernel test robot)
v6:
* fix build on 64-bit mips (kernel test robot)
* update fb_io_fops.c
v5:
* fix build on s390
v4:
* keep fb_mem*() as-is on ia64, loongarch, sparc64 (Arnd)
* don't include <asm/fb.h> (Sam)
v3:
* add the new helpers in <asm-generic/fb.h>
* support reordering and native byte order (Geert, Arnd)
v2:
* use Linux I/O helpers (Sam, Arnd)
Thomas Zimmermann (7):
fbdev/hitfb: Cast I/O offset to address
fbdev/matrox: Remove trailing whitespaces
ipu-v3: Include <linux/io.h>
fbdev: Include <linux/io.h> in various drivers
fbdev: Include <linux/fb.h> instead of <asm/fb.h>
fbdev: Move framebuffer I/O helpers into <asm/fb.h>
fbdev: Rename fb_mem*() helpers
arch/ia64/include/asm/fb.h | 20 ++++
arch/loongarch/include/asm/fb.h | 21 ++++
arch/mips/include/asm/fb.h | 22 ++++
arch/parisc/video/fbdev.c | 3 +-
arch/sparc/include/asm/fb.h | 20 ++++
arch/sparc/video/fbdev.c | 1 -
arch/x86/video/fbdev.c | 2 -
drivers/gpu/ipu-v3/ipu-prv.h | 1 +
drivers/staging/sm750fb/sm750.c | 2 +-
drivers/video/fbdev/arcfb.c | 1 +
drivers/video/fbdev/aty/atyfb.h | 2 +
drivers/video/fbdev/aty/mach64_cursor.c | 2 +-
drivers/video/fbdev/chipsfb.c | 2 +-
drivers/video/fbdev/core/fb_io_fops.c | 4 +-
drivers/video/fbdev/core/fbcon.c | 1 -
drivers/video/fbdev/core/fbmem.c | 2 -
drivers/video/fbdev/hitfb.c | 122 +++++++++++---------
drivers/video/fbdev/kyro/fbdev.c | 2 +-
drivers/video/fbdev/matrox/matroxfb_accel.c | 6 +-
drivers/video/fbdev/matrox/matroxfb_base.h | 4 +-
drivers/video/fbdev/pvr2fb.c | 2 +-
drivers/video/fbdev/sstfb.c | 2 +-
drivers/video/fbdev/stifb.c | 4 +-
drivers/video/fbdev/tdfxfb.c | 2 +-
drivers/video/fbdev/wmt_ge_rops.c | 2 +
include/asm-generic/fb.h | 102 ++++++++++++++++
include/linux/fb.h | 55 +--------
27 files changed, 279 insertions(+), 130 deletions(-)
--
2.40.1
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next reply other threads:[~2023-05-12 10:25 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-12 10:24 Thomas Zimmermann [this message]
2023-05-12 10:24 ` [PATCH v7 1/7] fbdev/hitfb: Cast I/O offset to address Thomas Zimmermann
2023-05-12 11:16 ` David Laight
2023-05-12 11:45 ` Thomas Zimmermann
2023-05-16 17:44 ` Helge Deller
2023-05-12 10:24 ` [PATCH v7 2/7] fbdev/matrox: Remove trailing whitespaces Thomas Zimmermann
2023-05-12 10:24 ` [PATCH v7 3/7] ipu-v3: Include <linux/io.h> Thomas Zimmermann
2023-05-12 10:24 ` [PATCH v7 4/7] fbdev: Include <linux/io.h> in various drivers Thomas Zimmermann
2023-05-12 10:24 ` [PATCH v7 5/7] fbdev: Include <linux/fb.h> instead of <asm/fb.h> Thomas Zimmermann
2023-05-12 10:24 ` [PATCH v7 6/7] fbdev: Move framebuffer I/O helpers into <asm/fb.h> Thomas Zimmermann
2023-05-12 10:24 ` [PATCH v7 7/7] fbdev: Rename fb_mem*() helpers Thomas Zimmermann
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