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| author | Brian King <brking@linux.vnet.ibm.com> | 2011-05-04 16:01:20 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-05-04 16:02:21 +1000 |
| commit | 9ee820fa005254dfc816330f6654f14dcb2beee1 (patch) | |
| tree | 1d36b17ec6a4c56dd24f9be2f7f31e6321040ed0 /arch/powerpc/kernel/rtas.c | |
| parent | 7707e4110e5692fe85e7e6c471c9bb2a9254d313 (diff) | |
| download | op-kernel-dev-9ee820fa005254dfc816330f6654f14dcb2beee1.zip op-kernel-dev-9ee820fa005254dfc816330f6654f14dcb2beee1.tar.gz | |
powerpc/pseries: Add page coalescing support
Adds support for page coalescing, which is a feature on IBM Power servers
which allows for coalescing identical pages between logical partitions.
Hint text pages as coalesce candidates, since they are the most likely
pages to be able to be coalesced between partitions. This patch also
exports some page coalescing statistics available from firmware via
lparcfg.
[BenH: Moved a couple of things around to fix compile problems]
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/rtas.c')
| -rw-r--r-- | arch/powerpc/kernel/rtas.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index f484466..271ff63 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -42,6 +42,7 @@ #include <asm/time.h> #include <asm/mmu.h> #include <asm/topology.h> +#include <asm/pSeries_reconfig.h> struct rtas_t rtas = { .lock = __ARCH_SPIN_LOCK_UNLOCKED @@ -731,6 +732,7 @@ static int __rtas_suspend_last_cpu(struct rtas_suspend_me_data *data, int wake_w atomic_set(&data->error, rc); start_topology_update(); + pSeries_coalesce_init(); if (wake_when_done) { atomic_set(&data->done, 1); |
