Merge branch 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[pandora-kernel.git] / arch / powerpc / include / asm / lppaca.h

diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h
index 14b592d..7f5e0fe 100644 (file)
--- a/arch/powerpc/include/asm/lppaca.h
+++ b/arch/powerpc/include/asm/lppaca.h
@@ -153,6 +153,8 @@ struct lppaca {
 
 extern struct lppaca lppaca[];
 
+#define lppaca_of(cpu) (*paca[cpu].lppaca_ptr)
+
 /*
  * SLB shadow buffer structure as defined in the PAPR.  The save_area
  * contains adjacent ESID and VSID pairs for each shadowed SLB.  The
@@ -170,6 +172,33 @@ struct slb_shadow {
 
 extern struct slb_shadow slb_shadow[];
 
+/*
+ * Layout of entries in the hypervisor's dispatch trace log buffer.
+ */
+struct dtl_entry {
+       u8      dispatch_reason;
+       u8      preempt_reason;
+       u16     processor_id;
+       u32     enqueue_to_dispatch_time;
+       u32     ready_to_enqueue_time;
+       u32     waiting_to_ready_time;
+       u64     timebase;
+       u64     fault_addr;
+       u64     srr0;
+       u64     srr1;
+};
+
+#define DISPATCH_LOG_BYTES     4096    /* bytes per cpu */
+#define N_DISPATCH_LOG         (DISPATCH_LOG_BYTES / sizeof(struct dtl_entry))
+
+/*
+ * When CONFIG_VIRT_CPU_ACCOUNTING = y, the cpu accounting code controls
+ * reading from the dispatch trace log.  If other code wants to consume
+ * DTL entries, it can set this pointer to a function that will get
+ * called once for each DTL entry that gets processed.
+ */
+extern void (*dtl_consumer)(struct dtl_entry *entry, u64 index);
+
 #endif /* CONFIG_PPC_BOOK3S */
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_LPPACA_H */