diff options
Diffstat (limited to 'arch/xtensa/mm/misc.S')
| -rw-r--r-- | arch/xtensa/mm/misc.S | 41 |
1 files changed, 10 insertions, 31 deletions
diff --git a/arch/xtensa/mm/misc.S b/arch/xtensa/mm/misc.S index 25cd67debee6..ec36f73c4765 100644 --- a/arch/xtensa/mm/misc.S +++ b/arch/xtensa/mm/misc.S @@ -47,6 +47,7 @@ ENTRY(clear_page) abi_ret_default ENDPROC(clear_page) +EXPORT_SYMBOL(clear_page) /* * copy_page and copy_user_page are the same for non-cache-aliased configs. @@ -89,6 +90,7 @@ ENTRY(copy_page) abi_ret_default ENDPROC(copy_page) +EXPORT_SYMBOL(copy_page) #ifdef CONFIG_MMU /* @@ -118,20 +120,13 @@ ENTRY(clear_page_alias) abi_entry_default - /* Skip setting up a temporary DTLB if not aliased low page. */ - movi a5, PAGE_OFFSET - movi a6, 0 - beqz a3, 1f - - /* Setup a temporary DTLB for the addr. */ - addi a6, a3, (PAGE_KERNEL | _PAGE_HW_WRITE) mov a4, a2 wdtlb a6, a2 dsync -1: movi a3, 0 + movi a3, 0 __loopi a2, a7, PAGE_SIZE, 32 s32i a3, a2, 0 s32i a3, a2, 4 @@ -143,12 +138,9 @@ ENTRY(clear_page_alias) s32i a3, a2, 28 __endla a2, a7, 32 - bnez a6, 1f - abi_ret_default - - /* We need to invalidate the temporary idtlb entry, if any. */ + /* We need to invalidate the temporary dtlb entry. */ -1: idtlb a4 + idtlb a4 dsync abi_ret_default @@ -166,22 +158,12 @@ ENTRY(copy_page_alias) abi_entry_default - /* Skip setting up a temporary DTLB for destination if not aliased. */ - - movi a6, 0 - movi a7, 0 - beqz a4, 1f - /* Setup a temporary DTLB for destination. */ addi a6, a4, (PAGE_KERNEL | _PAGE_HW_WRITE) wdtlb a6, a2 dsync - /* Skip setting up a temporary DTLB for source if not aliased. */ - -1: beqz a5, 1f - /* Setup a temporary DTLB for source. */ addi a7, a5, PAGE_KERNEL @@ -219,17 +201,11 @@ ENTRY(copy_page_alias) /* We need to invalidate any temporary mapping! */ - bnez a6, 1f - bnez a7, 2f - abi_ret_default - -1: addi a2, a2, -PAGE_SIZE + addi a2, a2, -PAGE_SIZE idtlb a2 dsync - bnez a7, 2f - abi_ret_default -2: addi a3, a3, -PAGE_SIZE+1 + addi a3, a3, -PAGE_SIZE+1 idtlb a3 dsync @@ -393,6 +369,7 @@ ENTRY(__invalidate_icache_range) abi_ret_default ENDPROC(__invalidate_icache_range) +EXPORT_SYMBOL(__invalidate_icache_range) /* * void __flush_invalidate_dcache_range(ulong start, ulong size) @@ -423,6 +400,7 @@ ENTRY(__flush_dcache_range) abi_ret_default ENDPROC(__flush_dcache_range) +EXPORT_SYMBOL(__flush_dcache_range) /* * void _invalidate_dcache_range(ulong start, ulong size) @@ -437,6 +415,7 @@ ENTRY(__invalidate_dcache_range) abi_ret_default ENDPROC(__invalidate_dcache_range) +EXPORT_SYMBOL(__invalidate_dcache_range) /* * void _invalidate_icache_all(void) |