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| author | Brian King <brking@linux.vnet.ibm.com> | 2008-07-23 20:29:16 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-25 07:44:42 +0200 |
| commit | 86630a32320f83736c4c24e2c8bae218e4c56c7c (patch) | |
| tree | 3fee9905e0edde44bb0137b66c46215110061ad6 /arch/powerpc | |
| parent | powerpc/pseries: Enable CMO feature during platform setup (diff) | |
| download | linux-86630a32320f83736c4c24e2c8bae218e4c56c7c.tar.xz linux-86630a32320f83736c4c24e2c8bae218e4c56c7c.zip | |
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.h | 10 |
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 d8680b589dc9..a437267c6bf8 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, |