AuxXxilium/linux_dsm_epyc7002
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3292094e88
linux_dsm_epyc7002/arch
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Magnus Damm 3292094e88 sh: lockless gpio_set_value() 
This patch optimizes the gpio data register handling for gpio_set_value().

Instead of using the good old spinlock-plus-read-modify-write strategy
we now use a shadow register and atomic operations.

This improves the bitbanging mmc performance on Migo-R from 26 Kbytes/s
to 40 Kbytes/s.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27 14:49:10 +09:00
..
alpha alpha: make pte_alloc_one_kernel() inline 2009-01-15 16:39:40 -08:00
arm Merge master.kernel.org:/home/rmk/linux-2.6-arm 2009-01-26 15:12:47 -08:00
avr32 eeprom: More consistent symbol names 2009-01-26 21:19:57 +01:00
blackfin eeprom: More consistent symbol names 2009-01-26 21:19:57 +01:00
cris Merge branch 'syscalls' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 2009-01-14 19:58:40 -08:00
frv NOMMU: Make VMAs per MM as for MMU-mode linux 2009-01-08 12:04:47 +00:00
h8300 Merge branch 'syscalls' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 2009-01-14 19:58:40 -08:00
ia64 eeprom: More consistent symbol names 2009-01-26 21:19:57 +01:00
m32r eeprom: More consistent symbol names 2009-01-26 21:19:57 +01:00
m68k m68k{nommu}: fixups after the header move 2009-01-26 10:38:43 -08:00
m68knommu Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2009-01-26 10:33:01 -08:00
mips eeprom: More consistent symbol names 2009-01-26 21:19:57 +01:00
mn10300 [CVE-2009-0029] Rename old_readdir to sys_old_readdir 2009-01-14 14:15:15 +01:00
parisc byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
powerpc eeprom: More consistent symbol names 2009-01-26 21:19:57 +01:00
s390 [S390] Add missing compat system call wrappers. 2009-01-23 16:40:29 +01:00
sh sh: lockless gpio_set_value() 2009-01-27 14:49:10 +09:00
sparc Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6 2009-01-26 15:11:41 -08:00
um mm: invoke oom-killer from page fault 2009-01-06 15:58:58 -08:00
x86 Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6 2009-01-26 15:11:41 -08:00
xtensa byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
.gitignore
Kconfig [CVE-2009-0029] System call wrapper infrastructure 2009-01-14 14:15:16 +01:00