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authorDavid S. Miller <davem@davemloft.net>2012-09-06 19:01:25 -0700
committerDavid S. Miller <davem@davemloft.net>2012-09-06 19:01:25 -0700
commitce33fdc52ad50043eef07d11473bc51e225565bd (patch)
treeb2c9e53f3a8f269c7fc5a16e0ebdaf8cea48fdb1 /arch/sparc/include
parent4f93d21d2563353df813ee049f6489f340389aab (diff)
sparc64: Probe cpu page size support more portably.
On sun4v, interrogate the machine description. This code is extremely defensive in nature, and a lot of the checks can probably be removed. On sun4u things are a lot simpler. There are the page sizes all chips support, and then Panther adds 32MB and 256MB pages. Report the probed value in /proc/cpuinfo Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include')
-rw-r--r--arch/sparc/include/asm/mdesc.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/mdesc.h b/arch/sparc/include/asm/mdesc.h
index 9faa046713fb..139097f3a67b 100644
--- a/arch/sparc/include/asm/mdesc.h
+++ b/arch/sparc/include/asm/mdesc.h
@@ -73,6 +73,7 @@ extern void mdesc_register_notifier(struct mdesc_notifier_client *client);
extern void mdesc_fill_in_cpu_data(cpumask_t *mask);
extern void mdesc_populate_present_mask(cpumask_t *mask);
+extern void mdesc_get_page_sizes(cpumask_t *mask, unsigned long *pgsz_mask);
extern void sun4v_mdesc_init(void);