[6/9] powerpc/perf: Drop MMCRA from thread_struct

Submitted by Michael Ellerman on June 28, 2013, 8:15 a.m.


Message ID 1372407319-718-6-git-send-email-michael@ellerman.id.au
State Accepted, archived
Headers show

Commit Message

Michael Ellerman June 28, 2013, 8:15 a.m.
In commit 59affcd "Context switch more PMU related SPRs" I added more
PMU SPRs to thread_struct, later modified in commit b11ae95. To add
insult to injury it turns out we don't need to switch MMCRA as it's
only user readable, and the value is recomputed by the PMU code.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
 arch/powerpc/include/asm/processor.h |    1 -
 arch/powerpc/kernel/asm-offsets.c    |    1 -
 2 files changed, 2 deletions(-)

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diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index 9fe1129..3f19df3 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -289,7 +289,6 @@  struct thread_struct {
 	unsigned long	sier;
 	unsigned long	mmcr0;
 	unsigned long	mmcr2;
-	unsigned long	mmcra;
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index dc684b1..c7e8afc 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -132,7 +132,6 @@  int main(void)
 	DEFINE(THREAD_SIER, offsetof(struct thread_struct, sier));
 	DEFINE(THREAD_MMCR0, offsetof(struct thread_struct, mmcr0));
 	DEFINE(THREAD_MMCR2, offsetof(struct thread_struct, mmcr2));
-	DEFINE(THREAD_MMCRA, offsetof(struct thread_struct, mmcra));
 	DEFINE(PACATMSCRATCH, offsetof(struct paca_struct, tm_scratch));