---

yaml
---
r: 356368
b: refs/heads/master
c: 9277924
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a09688cd23d477ebd9c8f57881bfe907240cb0a1
+refs/heads/master: 92779245599bb3d7fb48066b11c4bfd6aa477198

trunk/arch/powerpc/include/asm/processor.h

@@ -18,6 +18,16 @@
 #define TS_FPRWIDTH 1
 #endif
 
+#ifdef CONFIG_PPC64
+/* Default SMT priority is set to 3. Use 11- 13bits to save priority. */
+#define PPR_PRIORITY 3
+#ifdef __ASSEMBLY__
+#define INIT_PPR (PPR_PRIORITY << 50)
+#else
+#define INIT_PPR ((u64)PPR_PRIORITY << 50)
+#endif /* __ASSEMBLY__ */
+#endif /* CONFIG_PPC64 */
+
 #ifndef __ASSEMBLY__
 #include <linux/compiler.h>
 #include <linux/cache.h>
@@ -245,6 +255,7 @@ struct thread_struct {
 #ifdef CONFIG_PPC64
 	unsigned long	dscr;
 	int		dscr_inherit;
+	unsigned long	ppr;	/* used to save/restore SMT priority */
 #endif
 };
 
@@ -278,6 +289,7 @@ struct thread_struct {
 	.fpr = {{0}}, \
 	.fpscr = { .val = 0, }, \
 	.fpexc_mode = 0, \
+	.ppr = INIT_PPR, \
 }
 #endif
 

trunk/arch/powerpc/kernel/asm-offsets.c

@@ -77,6 +77,7 @@ int main(void)
 	DEFINE(NMI_MASK, NMI_MASK);
 	DEFINE(THREAD_DSCR, offsetof(struct thread_struct, dscr));
 	DEFINE(THREAD_DSCR_INHERIT, offsetof(struct thread_struct, dscr_inherit));
+	DEFINE(TASKTHREADPPR, offsetof(struct task_struct, thread.ppr));
 #else
 	DEFINE(THREAD_INFO, offsetof(struct task_struct, stack));
 #endif /* CONFIG_PPC64 */

trunk/arch/powerpc/kernel/process.c

@@ -813,6 +813,8 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
 		p->thread.dscr_inherit = current->thread.dscr_inherit;
 		p->thread.dscr = current->thread.dscr;
 	}
+	if (cpu_has_feature(CPU_FTR_HAS_PPR))
+		p->thread.ppr = INIT_PPR;
 #endif
 	/*
 	 * The PPC64 ABI makes use of a TOC to contain function