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MIPS: lib: memcpy: Add EVA support

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Add copy_{to,from,in}_user when the CPU operates in EVA mode.
This is necessary so the EVA specific instructions can be used
to perform the virtual to physical translation for user space
addresses. We will use the non-EVA functions to read from kernel
if needed.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
This commit is contained in:
Markos Chandras
2014-01-07 16:20:22 +00:00
committed by Ralf Baechle
parent cf62a8b813
commit cd26cb41ec
2 changed files with 83 additions and 0 deletions
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6
arch/mips/kernel/mips_ksyms.c
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@@ -51,6 +51,12 @@ EXPORT_SYMBOL(copy_page);
*/
EXPORT_SYMBOL(__copy_user);
EXPORT_SYMBOL(__copy_user_inatomic);
#ifdef CONFIG_EVA
EXPORT_SYMBOL(__copy_from_user_eva);
EXPORT_SYMBOL(__copy_in_user_eva);
EXPORT_SYMBOL(__copy_to_user_eva);
EXPORT_SYMBOL(__copy_user_inatomic_eva);
#endif
EXPORT_SYMBOL(__bzero);
EXPORT_SYMBOL(__strncpy_from_kernel_nocheck_asm);
EXPORT_SYMBOL(__strncpy_from_kernel_asm);