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pseries: Add H_SET_MODE to change exception endianness

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On little endian builds call H_SET_MODE so exceptions have the
correct endianness. We need to reset the endian during kexec
so do that in the MMU hashtable clear callback.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Anton Blanchard
2013-11-20 22:14:59 +11:00
committed by Benjamin Herrenschmidt
parent b91da2d4ce
commit e844b1eeae
4 changed files with 87 additions and 0 deletions
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arch/powerpc/include/asm/hvcall.h
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@@ -403,6 +403,8 @@ static inline unsigned long cmo_get_page_size(void)
extern long pSeries_enable_reloc_on_exc(void);
extern long pSeries_disable_reloc_on_exc(void);
extern long pseries_big_endian_exceptions(void);
#else
#define pSeries_enable_reloc_on_exc() do {} while (0)