From: Michael Ellerman <mpe@ellerman.id.au>
To: <linuxppc-dev@ozlabs.org>
Subject: [PATCH 3/4] powerpc/kernel: Open code SET_DEFAULT_THREAD_PPR
Date: Wed, 25 Nov 2015 14:25:18 +1100 [thread overview]
Message-ID: <1448421919-30426-3-git-send-email-mpe@ellerman.id.au> (raw)
In-Reply-To: <1448421919-30426-1-git-send-email-mpe@ellerman.id.au>
This is only used in one location, open code it.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
arch/powerpc/include/asm/ppc_asm.h | 13 -------------
arch/powerpc/kernel/entry_64.S | 8 +++++++-
2 files changed, 7 insertions(+), 14 deletions(-)
diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h
index 67f05d4935a0..499d9f89435a 100644
--- a/arch/powerpc/include/asm/ppc_asm.h
+++ b/arch/powerpc/include/asm/ppc_asm.h
@@ -413,19 +413,6 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
FTR_SECTION_ELSE_NESTED(848); \
mtocrf (FXM), RS; \
ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_NOEXECUTE, 848)
-
-/*
- * PPR restore macros used in entry_64.S
- * Used for P7 or later processors
- */
-#define SET_DEFAULT_THREAD_PPR(ra, rb) \
-BEGIN_FTR_SECTION_NESTED(945) \
- lis ra,INIT_PPR@highest; /* default ppr=3 */ \
- ld rb,PACACURRENT(r13); \
- sldi ra,ra,32; /* 11- 13 bits are used for ppr */ \
- std ra,TASKTHREADPPR(rb); \
-END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,945)
-
#endif
/*
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index c8a60aa07aa5..a4b0f03cf124 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -316,7 +316,13 @@ syscall_exit_work:
subi r12,r12,TI_FLAGS
4: /* Anything else left to do? */
- SET_DEFAULT_THREAD_PPR(r3, r10) /* Set thread.ppr = 3 */
+BEGIN_FTR_SECTION
+ lis r3,INIT_PPR@highest /* Set thread.ppr = 3 */
+ ld r10,PACACURRENT(r13)
+ sldi r3,r3,32 /* bits 11-13 are used for ppr */
+ std r3,TASKTHREADPPR(r10)
+END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
+
andi. r0,r9,(_TIF_SYSCALL_DOTRACE|_TIF_SINGLESTEP)
beq ret_from_except_lite
--
2.5.0
next prev parent reply other threads:[~2015-11-25 3:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-25 3:25 [PATCH 1/4] powerpc/kernel: Drop HMT_MEDIUM_PPR_DISCARD Michael Ellerman
2015-11-25 3:25 ` [PATCH 2/4] powerpc/kernel: Open code HMT_MEDIUM_LOW_HAS_PPR Michael Ellerman
2015-11-25 3:25 ` Michael Ellerman [this message]
2015-11-25 3:25 ` [PATCH 4/4] powerpc/kernel: Combine vec/loc for STD_EXCEPTION_PSERIES Michael Ellerman
2015-12-17 11:57 ` [1/4] powerpc/kernel: Drop HMT_MEDIUM_PPR_DISCARD Michael Ellerman
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