linux/arch/sh
Christoph Hellwig ee196371d5 dma-mapping: consolidate dma_supported
Most architectures just call into ->dma_supported, but some also return 1
if the method is not present, or 0 if no dma ops are present (although
that should never happeb). Consolidate this more broad version into
common code.

Also fix h8300 which inorrectly always returned 0, which would have been
a problem if it's dma_set_mask implementation wasn't a similarly buggy
noop.

As a few architectures have much more elaborate implementations, we
still allow for arch overrides.

[jcmvbkbc@gmail.com: fix xtensa]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-10 13:29:01 -07:00
..
boards sh/intc: Prepare irq flow handlers for irq argument removal 2015-07-29 10:08:09 +02:00
boot lib/decompressors: use real out buf size for gunzip with kernel 2015-09-10 13:29:01 -07:00
cchips
configs PM: Eliminate CONFIG_PM_RUNTIME 2014-12-19 22:55:06 +01:00
drivers PCI: Remove unused "pci_probe" flags 2015-07-27 17:09:40 -05:00
include dma-mapping: consolidate dma_supported 2015-09-10 13:29:01 -07:00
kernel media updates for v4.3-rc1 2015-09-05 18:21:14 -07:00
lib sh: ftrace: Remove check of obsolete variable function_trace_stop 2014-07-18 13:57:04 -04:00
lib64
math-emu sh: remove unused do_fpu_error 2014-04-03 16:20:52 -07:00
mm libnvdimm for 4.3: 2015-09-08 14:35:59 -07:00
oprofile
tools
Kconfig kexec: split kexec_load syscall from kexec core code 2015-09-10 13:29:01 -07:00
Kconfig.cpu arch/sh: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:43:13 -08:00
Kconfig.debug
Makefile sh: also try passing -m4-nofpu for SH2A builds 2014-07-23 15:10:54 -07:00