linux_dsm_epyc7002/arch/mips
Joshua Kinard b4f2a17ba9 Improve atomic.h robustness
I've maintained this patch, originally from Thiemo Seufer in 2004, for a
really long time, but I think it's time for it to get a look at for
possible inclusion.  I have had no problems with it across various SGI
systems over the years.

To quote the post here:
http://www.linux-mips.org/archives/linux-mips/2004-12/msg00000.html

"the atomic functions use so far memory references for the inline
assembler to access the semaphore. This can lead to additional
instructions in the ll/sc loop, because newer compilers don't
expand the memory reference any more but leave it to the assembler.

The appended patch uses registers instead, and makes the ll/sc
arguments more explicit. In some cases it will lead also to better
register scheduling because the register isn't bound to an output
any more."

Signed-off-by: Joshua Kinard <kumba@gentoo.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4029/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:02:36 +02:00
..
alchemy MIPS: MTX-1: Add udelay to mtx1_pci_idsel 2012-08-17 10:57:27 +02:00
ar7
ath79 MIPS: ath79: Fix CPU/DDR frequency calculation for SRIF PLLs 2012-10-01 11:37:15 +02:00
bcm47xx
bcm63xx Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2012-10-09 16:08:04 +09:00
boot
cavium-octeon Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2012-10-09 16:08:04 +09:00
cobalt
configs UAPI Disintegration 2012-10-09 2012-10-09 15:04:25 +01:00
dec
emma
fw
include Improve atomic.h robustness 2012-10-11 11:02:36 +02:00
jazz
jz4740 pwm: Add Ingenic JZ4740 support 2012-10-05 20:56:42 +02:00
kernel Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2012-10-09 16:08:04 +09:00
lantiq Merge branch 'master' of git://dev.phrozen.org/mips-next into mips-for-linux-next 2012-10-05 15:56:28 +02:00
lasat
lib MIPS: introduce CPU_GENERIC_DUMP_TLB 2012-08-22 23:46:38 +02:00
loongson MIPS: Loongson 2: Sort out clock managment. 2012-08-01 18:10:06 +02:00
loongson1 MIPS: Loongson 1: more clk support and add select HAVE_CLK 2012-08-01 17:59:23 +02:00
math-emu
mm Merge branch 'akpm' (Andrew's patch-bomb) 2012-10-09 16:23:15 +09:00
mti-malta Merge branch 'ralf-3.7' of git://git.linux-mips.org/pub/scm/sjhill/linux-sjhill into mips-for-linux-next 2012-09-28 16:29:55 +02:00
mti-sead3 MIPS: Add core files for MIPS SEAD-3 development platform. 2012-09-13 15:43:46 -05:00
netlogic MIPS: Netlogic: Add support for built in DTB 2012-08-22 23:46:37 +02:00
oprofile Merge branches 'next/generic', 'next/alchemy', 'next/bcm63xx', 'next/cavium', 'next/jz4740', 'next/lantiq', 'next/loongson1b' and 'next/netlogic' into mips-for-linux-next 2012-07-25 16:37:46 +02:00
pci sections: fix section conflicts in arch/mips 2012-10-06 03:04:39 +09:00
pmc-sierra
pnx833x
pnx8550
power
powertv
rb532
sgi-ip22
sgi-ip27 mips: zero out pg_data_t when it's allocated 2012-07-31 18:42:49 -07:00
sgi-ip32
sibyte
sni serial: Add note about migration to driver SCCNXP 2012-09-05 13:24:40 -07:00
txx9 MIPS: txx9: Fix redefinition of clk_* by adding select HAVE_CLK 2012-08-01 17:59:15 +02:00
vr41xx
wrppmc
Kbuild
Kbuild.platforms Merge branch 'ralf-3.7' of git://git.linux-mips.org/pub/scm/sjhill/linux-sjhill into mips-for-linux-next 2012-09-28 16:29:55 +02:00
Kconfig Merge branch 'akpm' (Andrew's patch-bomb) 2012-10-09 16:23:15 +09:00
Kconfig.debug
Makefile kbuild: Fix gcc -x syntax 2012-10-03 09:03:24 +02:00