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kernel_optimize_test/arch/mips
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Wu Zhangjin 64fc74f5f6 MIPS: Loongson 2F: Fix of problems introduced by -mfix-loongson2f-jump 
The -mfix-loongson2f-jump option provided by latest CVS binutils have fixed
the out-of-order issue of Loongson-2F described in chapter 15 of the
Loongson2F User Manual [1, 2], but introduced some problems.

The option changes all of the jump target to "addr & 0xcfffffff" through the
at($1) register, but for the reboot address of Loongson 2F 0xbfc00000 this is
wrong.  Avoids the problem via telling the assembler to not use the $at
register.

[1] Loongson2F User Manual (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

Reported-and-tested-by: Liu Shiwei <liushiwei@gmail.com>
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/1109/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:58 +01:00
..
alchemy MIPS: DB1200: PCMCIA card detection must not be auto-enabled. 2010-04-30 20:52:43 +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: Fix build failure in board_bcm963xx.c 2010-04-12 17:26:20 +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: BCM63xx: Update defconfig 2010-04-30 20:52:55 +01:00
dec MIPS: DEC: Convert KN01 lock to raw spinlock. 2010-02-27 12:53:36 +01:00
emma
fw MIPS: IP22: Remove an unused function 2009-12-17 01:56:56 +00:00
gt64120/wrppmc
include/asm MIPS: Loongson-2F: Use CONFIG_CPU_JUMP_WORKAROUNDS to control workarounds. 2010-04-30 20:52:58 +01:00
jazz MIPS: Fixup screen_info struct initializations 2010-04-30 20:52:42 +01:00
kernel MIPS: Use CKSEG1ADDR for uncached handler 2010-04-30 20:52:48 +01:00
lasat MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
lib MIPS: libgcc.h: Checkpatch cleanup 2010-04-12 17:26:15 +01:00
loongson MIPS: Loongson 2F: Fix of problems introduced by -mfix-loongson2f-jump 2010-04-30 20:52:58 +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: Check for accesses beyond the end of the PGD. 2010-04-30 20:52:48 +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 MIPS: PNX8550: Fix build error, broken by: 2010-04-30 20:52:39 +01:00
oprofile MIPS: Loongson: Remove pointless sample_lock from oprofile code. 2010-02-27 12:53:39 +01:00
pci MIPS: SB1250: Include correct header and fix a warning 2010-04-30 20:52:43 +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: die() does not call die notifier chain 2010-04-30 20:52:45 +01:00
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 MIPS: Fixup screen_info struct initializations 2010-04-30 20:52:42 +01:00
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 MIPS: Loongson: Add CPU_LOONGSON2F_WORKAROUNDS 2010-04-30 20:52:56 +01:00
Kconfig.debug MIPS: Crazy spinlock speed test. 2010-02-27 12:53:42 +01:00
Makefile MIPS: Loongson 2F: Enable fixups of the latest binutils 2010-04-30 20:52:56 +01:00