Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (151 commits)
  powerpc: Fix usage of 64-bit instruction in 32-bit altivec code
  MAINTAINERS: Add PowerPC patterns
  powerpc/pseries: Track previous CPPR values to correctly EOI interrupts
  powerpc/pseries: Correct pseries/dlpar.c build break without CONFIG_SMP
  powerpc: Make "intspec" pointers in irq_host->xlate() const
  powerpc/8xx: DTLB Miss cleanup
  powerpc/8xx: Remove DIRTY pte handling in DTLB Error.
  powerpc/8xx: Start using dcbX instructions in various copy routines
  powerpc/8xx: Restore _PAGE_WRITETHRU
  powerpc/8xx: Add missing Guarded setting in DTLB Error.
  powerpc/8xx: Fixup DAR from buggy dcbX instructions.
  powerpc/8xx: Tag DAR with 0x00f0 to catch buggy instructions.
  powerpc/8xx: Update TLB asm so it behaves as linux mm expects.
  powerpc/8xx: Invalidate non present TLBs
  powerpc/pseries: Serialize cpu hotplug operations during deactivate Vs deallocate
  pseries/pseries: Add code to online/offline CPUs of a DLPAR node
  powerpc: stop_this_cpu: remove the cpu from the online map.
  powerpc/pseries: Add kernel based CPU DLPAR handling
  sysfs/cpu: Add probe/release files
  powerpc/pseries: Kernel DLPAR Infrastructure
  ...

1 files changed, 22 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h
index a24a6b2333b..0603c91538a 100644
--- a/arch/powerpc/platforms/pseries/plpar_wrappers.h
+++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h
@@ -9,11 +9,33 @@ static inline long poll_pending(void)
 	return plpar_hcall_norets(H_POLL_PENDING);
 }
 
+static inline u8 get_cede_latency_hint(void)
+{
+	return get_lppaca()->gpr5_dword.fields.cede_latency_hint;
+}
+
+static inline void set_cede_latency_hint(u8 latency_hint)
+{
+	get_lppaca()->gpr5_dword.fields.cede_latency_hint = latency_hint;
+}
+
 static inline long cede_processor(void)
 {
 	return plpar_hcall_norets(H_CEDE);
 }
 
+static inline long extended_cede_processor(unsigned long latency_hint)
+{
+	long rc;
+	u8 old_latency_hint = get_cede_latency_hint();
+
+	set_cede_latency_hint(latency_hint);
+	rc = cede_processor();
+	set_cede_latency_hint(old_latency_hint);
+
+	return rc;
+}
+
 static inline long vpa_call(unsigned long flags, unsigned long cpu,
 		unsigned long vpa)
 {