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Wu Zhangjin f1df323924 MIPS: Loongson-2F: Flush the branch target history in BTB and RAS 
As per chapter 15 "Errata: Issue of Out-of-order in loongson"[1] to work
around the Loongson 2F erratum we need to do:

"When switching from user mode to kernel mode, you should flush the
branch target history such as BTB and RAS."

[1] Chinese version: http://www.loongson.cn/uploadfile/file/200808211
[2] English version of chapter 15:
    http://groups.google.com.hk/group/loongson-dev/msg/e0d2e220958f10a6?dmode=source

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Patchwork: http://patchwork.linux-mips.org/patch/1066/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-12 17:26:15 +01:00
..
alchemy MIPS: Alchemy: Fix Au1100 ethernet build failure 2010-02-27 12:53:45 +01:00
ar7 MIPS: AR7: Fix phat finger of cpmac fixed_phy_add 2010-04-12 17:26:13 +01:00
bcm47xx MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
bcm63xx MIPS: BCM63xx: Convert timer locks to raw spinlocks. 2010-02-27 12:53:35 +01:00
boot MIPS: Make the debugging of compressed kernel configurable 2010-02-27 12:53:24 +01:00
cavium-octeon MIPS: Octeon: Remove redundant declaration of octeon_reserve32_memory 2010-04-12 17:26:10 +01:00
cobalt MIPS: Cobalt: Fix theoretical port aliasing issue 2010-02-27 12:53:43 +01:00
configs MIPS: Alchemy: defconfig updates 2010-02-27 12:53:46 +01:00
dec MIPS: DEC: Convert KN01 lock to raw spinlock. 2010-02-27 12:53:36 +01:00
emma MIPS: Remove useless zero initializations. 2009-09-17 20:07:51 +02:00
fw MIPS: IP22: Remove an unused function 2009-12-17 01:56:56 +00:00
gt64120/wrppmc Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
include/asm MIPS: Loongson-2F: Flush the branch target history in BTB and RAS 2010-04-12 17:26:15 +01:00
jazz include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
kernel MIPS: Move signal trampolines off of the stack. 2010-04-12 17:26:15 +01:00
lasat MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
lib MIPS: delay: Fix use of current_cpu_data in preemptable code. 2010-04-12 17:26:09 +01:00
loongson MIPS: Lemote 2F: Move printks out of port_access_lock. 2010-02-27 12:53:41 +01:00
math-emu MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
mipssim include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
mm MIPS: Add SYSCALL to uasm. 2010-04-12 17:26:14 +01:00
mti-malta include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
nxp include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
oprofile MIPS: Loongson: Remove pointless sample_lock from oprofile code. 2010-02-27 12:53:39 +01:00
pci MIPS: Lemote 2F: Ensure atomic execution of _rdmsr and _wrmsr 2010-04-12 17:26:12 +01:00
pmc-sierra include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
power MIPS: Loongson: Change the Email address of Wu Zhangjin 2010-02-27 12:53:12 +01:00
powertv include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
rb532 include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sgi-ip22 MIPS: Move several variables from .bss to .init.data 2009-12-17 01:57:27 +00:00
sgi-ip27 include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sgi-ip32 include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sibyte include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sni MIPS: SNI: Convert sni_rm200_i8259A_lock to raw spinlock. 2010-02-27 12:53:39 +01:00
txx9 include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
vr41xx MIPS: VR41xx: Use strlcat() for the command line arguments 2010-01-12 18:19:30 +01:00
Kconfig pci-dma: mips: use include/linux/pci-dma.h 2010-03-12 15:52:41 -08:00
Kconfig.debug MIPS: Crazy spinlock speed test. 2010-02-27 12:53:42 +01:00
Makefile MIPS: Loongson: arch/mips/Makefile: Add missing whitespace 2010-02-27 12:53:11 +01:00