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authorBrian King <brking@linux.vnet.ibm.com>2008-07-24 04:29:16 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-25 15:44:42 +1000
commit86630a32320f83736c4c24e2c8bae218e4c56c7c (patch)
tree3fee9905e0edde44bb0137b66c46215110061ad6 /arch/powerpc
parente46de429cb954d30a5642fba81d516ede518c65e (diff)
downloadop-kernel-dev-86630a32320f83736c4c24e2c8bae218e4c56c7c.zip
op-kernel-dev-86630a32320f83736c4c24e2c8bae218e4c56c7c.tar.gz
powerpc/pseries: Utilities to set firmware page state
Newer versions of firmware support page states, which are used by the collaborative memory manager (future patch) to "loan" pages to the hypervisor for use by other partitions. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/platforms/pseries/plpar_wrappers.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h
index d8680b5..a437267 100644
--- a/arch/powerpc/platforms/pseries/plpar_wrappers.h
+++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h
@@ -42,6 +42,16 @@ static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa)
return vpa_call(0x3, cpu, vpa);
}
+static inline long plpar_page_set_loaned(unsigned long vpa)
+{
+ return plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_LOANED, vpa, 0);
+}
+
+static inline long plpar_page_set_active(unsigned long vpa)
+{
+ return plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_ACTIVE, vpa, 0);
+}
+
extern void vpa_init(int cpu);
static inline long plpar_pte_enter(unsigned long flags,
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