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SPARC64: use generic percpu

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Sparc64 has a way of providing the base address for the per cpu area of the
currently executing processor in a global register.

Sparc64 also provides a way to calculate the address of a per cpu area
from a base address instead of performing an array lookup.

Cc: David Miller <davem@davemloft.net>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
travis@sgi.com
2008-01-30 23:27:58 +01:00
committed by Ingo Molnar
parent 988c388ad4
commit 3afc620229
2 changed files with 7 additions and 18 deletions
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arch/sparc64/mm/init.c
+5
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@@ -1328,6 +1328,11 @@ pgd_t swapper_pg_dir[2048];
static void sun4u_pgprot_init(void);
static void sun4v_pgprot_init(void);
/* Dummy function */
void __init setup_per_cpu_areas(void)
{
}
void __init paging_init(void)
{
unsigned long end_pfn, pages_avail, shift, phys_base;