25985edced
Fix common misspellings
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Fixes generated by 'codespell' and manually reviewed.
Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi >
2011-03-31 11:26:23 -03:00
b197b62866
MIPS: Loongson-2F: Use CONFIG_CPU_JUMP_WORKAROUNDS to control workarounds.
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Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com >
Cc: linux-mips <linux-mips@linux-mips.org >
Patchwork: http://patchwork.linux-mips.org/patch/1106/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2010-04-30 20:52:58 +01:00
f1df323924
MIPS: Loongson-2F: Flush the branch target history in BTB and RAS
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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
82622284dd
MIPS: Put PGD in C0_CONTEXT for 64-bit R2 processors.
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Processors that support the mips64r2 ISA can in four instructions
convert a shifted PGD pointer stored in the upper bits of c0_context
into a usable pointer. By doing this we save a memory load and
associated potential cache miss in the TLB exception handlers.
Since the upper bits of c0_context were holding the CPU number, we
move this to the upper bits of c0_xcontext which doesn't have enough
bits to hold the PGD pointer, but has plenty for the CPU number.
Signed-off-by: David Daney <ddaney@caviumnetworks.com >
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2009-12-17 01:57:01 +00:00
362e696428
MIPS: Reorder operations in stackframe.h for better scheduling
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Reorder PT ops to avoid pipeline stalls.
Signed-off-by: David Daney <ddaney@caviumnetworks.com >
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2009-12-17 01:56:57 +00:00
2a219b0eaa
MIPS: Cavium OCTEON multiplier state preservation.
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For OCTEON, implement a save and restore of the multiplier state
across context switches.
Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com >
Signed-off-by: David Daney <ddaney@caviumnetworks.com >
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2009-01-11 09:57:24 +00:00
384740dc49
MIPS: Move headfiles to new location below arch/mips/include
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2008-10-11 16:18:52 +01:00
