linux/arch/ia64
Will Deacon 49ca6462fc ia64/mmiowb: Add unconditional mmiowb() to arch_spin_unlock()
The mmiowb() macro is horribly difficult to use and drivers will continue
to work most of the time if they omit a call when it is required.

Rather than rely on driver authors getting this right, push mmiowb() into
arch_spin_unlock() for ia64. If this is deemed to be a performance issue,
a subsequent optimisation could make use of ARCH_HAS_MMIOWB to elide
the barrier in cases where no I/O writes were performed inside the
critical section.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-04-08 12:00:32 +01:00
..
configs
dig
hp scsi: ia64: simscsi: use request tag instead of serial_number 2019-03-15 10:53:41 -07:00
include ia64/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() 2019-04-08 12:00:32 +01:00
kernel ia64: add checks for the return value of memblock_alloc*() 2019-03-12 10:04:01 -07:00
lib
mm ia64: add checks for the return value of memblock_alloc*() 2019-03-12 10:04:01 -07:00
oprofile
pci mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
scripts
sn ia64: prefix header search path with $(srctree)/ 2019-03-14 02:39:09 +09:00
uv
install.sh
Kconfig ia64: fix compile without swiotlb 2019-01-04 18:15:33 -08:00
Kconfig.debug
Makefile ia64: remove redundant 'export AWK' 2019-01-16 23:31:18 +09:00
module.lds