Messages in this thread Patch in this message | | | From | Laura Abbott <> | Subject | [PATCHv5 05/11] mm: Introduce lm_alias | Date | Tue, 6 Dec 2016 15:50:51 -0800 |
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Certain architectures may have the kernel image mapped separately to alias the linear map. Introduce a macro lm_alias to translate a kernel image symbol into its linear alias. This is used in part with work to add CONFIG_DEBUG_VIRTUAL support for arm64.
Signed-off-by: Laura Abbott <labbott@redhat.com> --- v5: Split off from the arm64 conversion to __pa_symbol --- include/linux/mm.h | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/include/linux/mm.h b/include/linux/mm.h index a92c8d7..88556b8 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -76,6 +76,10 @@ extern int mmap_rnd_compat_bits __read_mostly; #define page_to_virt(x) __va(PFN_PHYS(page_to_pfn(x))) #endif +#ifndef lm_alias +#define lm_alias(x) __va(__pa_symbol(x)) +#endif + /* * To prevent common memory management code establishing * a zero page mapping on a read fault. -- 2.7.4
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