From 5dd6cdca8b67cf4e976fc0d9437045388c04811c Mon Sep 17 00:00:00 2001

From: Michal Suchanek <msuchanek@suse.de>

Date: Thu, 27 May 2021 15:36:33 +0200

Subject: [PATCH] kABI: powerpc/64: add back start_tb and accum_tb to

 thread_struct

Also rename the members to make sure no users remain.

References: bsc#1186487 ltc#177613

Patch-mainline: never, kABI

Signed-off-by: Michal Suchanek <msuchanek@suse.de>

---

 arch/powerpc/include/asm/processor.h | 8 ++++++++

 1 file changed, 8 insertions(+)

diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h

index 8c082cb7d9fc..18ef6b44b91f 100644

--- a/arch/powerpc/include/asm/processor.h

+++ b/arch/powerpc/include/asm/processor.h

@@ -264,6 +264,14 @@ struct thread_struct {

 	struct thread_fp_state	*fp_save_area;

 	int		fpexc_mode;	/* floating-point exception mode */

 	unsigned int	align_ctl;	/* alignment handling control */

+#ifdef CONFIG_PPC64

+#ifdef __GENKSYMS__

+	unsigned long	start_tb;	/* Start purr when proc switched in */

+	unsigned long	accum_tb;	/* Total accumulated purr for process */

+#else

+	unsigned long	__unused_padding[2];

+#endif

+#endif

 #ifdef CONFIG_HAVE_HW_BREAKPOINT

 	struct perf_event *ptrace_bps[HBP_NUM];

 	/*

-- 

2.26.2