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[MIPS] Enable support for the userlocal hardware register

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Which will cut down the cost of RDHWR $29 which is used to obtain the
TLS pointer and so far being emulated in software down to a single cycle
operation.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2007-07-10 17:33:02 +01:00
parent d223a86154
commit a36920200c
7 changed files with 24 additions and 5 deletions
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2
include/asm-mips/system.h
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@ -67,6 +67,8 @@ do { \
(last) = resume(prev, next, task_thread_info(next)); \
if (cpu_has_dsp) \
__restore_dsp(current); \
if (cpu_has_userlocal) \
write_c0_userlocal(task_thread_info(current)->tp_value);\
} while(0)
/*