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powerpc: Export memstart_addr and kernstart_addr on ppc64 

Some modules (like eHCA) want to map all of kernel memory, for this to
work with a relocated kernel, we need to export kernstart_addr so
modules can use PHYSICAL_START and memstart_addr so they could use
MEMORY_START.  Note that the 32bit code already exports these symbols.

Signed-off-By: Sonny Rao <sonnyrao@us.ibm.com>

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Sonny Rao 2010-08-19 18:08:09 +00:00 committed by Benjamin Herrenschmidt
parent 529b7307d8
commit 79c3095fb3
1 changed files with 2 additions and 0 deletions
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2
arch/powerpc/mm/init_64.c
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@ -79,7 +79,9 @@
#endif /* CONFIG_PPC_STD_MMU_64 */ #endif /* CONFIG_PPC_STD_MMU_64 */
phys_addr_t memstart_addr = ~0; phys_addr_t memstart_addr = ~0;
EXPORT_SYMBOL_GPL(memstart_addr);
phys_addr_t kernstart_addr; phys_addr_t kernstart_addr;
EXPORT_SYMBOL_GPL(kernstart_addr);
void free_initmem(void) void free_initmem(void)
{ {