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powerpc/64s/exception: move paca save area offsets into exception-64s.S 

No generated code change.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Nicholas Piggin 2019-06-22 23:15:35 +10:00 committed by Michael Ellerman
parent d064151fd3
commit 1582009113
2 changed files with 25 additions and 14 deletions
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17
arch/powerpc/include/asm/exception-64s.h
View File

@ -36,22 +36,11 @@
*/
#include <asm/feature-fixups.h>
/* PACA save area offsets (exgen, exmc, etc) */
#define EX_R9 0
#define EX_R10 8
#define EX_R11 16
#define EX_R12 24
#define EX_R13 32
#define EX_DAR 40
#define EX_DSISR 48
#define EX_CCR 52
#define EX_CFAR 56
#define EX_PPR 64
/* PACA save area size in u64 units (exgen, exmc, etc) */
#if defined(CONFIG_RELOCATABLE)
#define EX_CTR 72
#define EX_SIZE 10 /* size in u64 units */
#define EX_SIZE 10
#else
#define EX_SIZE 9 /* size in u64 units */
#define EX_SIZE 9
#endif
/*

22
arch/powerpc/kernel/exceptions-64s.S
View File

@ -21,6 +21,28 @@
#include <asm/feature-fixups.h>
#include <asm/kup.h>
/* PACA save area offsets (exgen, exmc, etc) */
#define EX_R9 0
#define EX_R10 8
#define EX_R11 16
#define EX_R12 24
#define EX_R13 32
#define EX_DAR 40
#define EX_DSISR 48
#define EX_CCR 52
#define EX_CFAR 56
#define EX_PPR 64
#if defined(CONFIG_RELOCATABLE)
#define EX_CTR 72
.if EX_SIZE != 10
.error "EX_SIZE is wrong"
.endif
#else
.if EX_SIZE != 9
.error "EX_SIZE is wrong"
.endif
#endif
/*
* We're short on space and time in the exception prolog, so we can't
* use the normal LOAD_REG_IMMEDIATE macro to load the address of label.