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powerpc/64s/exception: Expand EXCEPTION_COMMON macro into caller 

No generated code change except BUG line number constants.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190802105709.27696-31-npiggin@gmail.com
This commit is contained in:
Nicholas Piggin 2019-08-02 20:56:55 +10:00 committed by Michael Ellerman
parent bcbceed40a
commit 5d5e0edfd5
1 changed files with 27 additions and 27 deletions
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54
arch/powerpc/kernel/exceptions-64s.S
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@ -437,41 +437,41 @@ END_FTR_SECTION_NESTED(CPU_FTR_CFAR, CPU_FTR_CFAR, 66); \
* On entry r13 points to the paca, r9-r13 are saved in the paca,
* r9 contains the saved CR, r11 and r12 contain the saved SRR0 and
* SRR1, and relocation is on.
*
* If stack=0, then the stack is already set in r1, and r1 is saved in r10.
* PPR save and CPU accounting is not done for the !stack case (XXX why not?)
*/
#define EXCEPTION_COMMON(area, trap) \
andi. r10,r12,MSR_PR; /* See if coming from user */ \
mr r10,r1; /* Save r1 */ \
subi r1,r1,INT_FRAME_SIZE; /* alloc frame on kernel stack */ \
beq- 1f; \
ld r1,PACAKSAVE(r13); /* kernel stack to use */ \
1: tdgei r1,-INT_FRAME_SIZE; /* trap if r1 is in userspace */ \
EMIT_BUG_ENTRY 1b,__FILE__,__LINE__,0; \
3: EXCEPTION_PROLOG_COMMON_1(); \
kuap_save_amr_and_lock r9, r10, cr1, cr0; \
beq 4f; /* if from kernel mode */ \
ACCOUNT_CPU_USER_ENTRY(r13, r9, r10); \
SAVE_PPR(area, r9); \
4: EXCEPTION_PROLOG_COMMON_2(area, trap); \
ACCOUNT_STOLEN_TIME
/*
* Exception where stack is already set in r1, r1 is saved in r10.
* PPR save and CPU accounting is not done (for some reason).
*/
#define EXCEPTION_COMMON_STACK(area, trap) \
EXCEPTION_PROLOG_COMMON_1(); \
kuap_save_amr_and_lock r9, r10, cr1; \
EXCEPTION_PROLOG_COMMON_2(area, trap)
.macro INT_COMMON vec, area, stack, kaup
.if \stack
EXCEPTION_COMMON(\area, \vec)
.else
andi. r10,r12,MSR_PR /* See if coming from user */
mr r10,r1 /* Save r1 */
subi r1,r1,INT_FRAME_SIZE /* alloc frame on kernel stack */
beq- 1f
ld r1,PACAKSAVE(r13) /* kernel stack to use */
1: tdgei r1,-INT_FRAME_SIZE /* trap if r1 is in userspace */
EMIT_BUG_ENTRY 1b,__FILE__,__LINE__,0
3:
.endif
EXCEPTION_PROLOG_COMMON_1()
.if \stack
.if \kaup
kuap_save_amr_and_lock r9, r10, cr1, cr0
.endif
beq 4f /* if from kernel mode */
ACCOUNT_CPU_USER_ENTRY(r13, r9, r10)
SAVE_PPR(\area, r9)
4:
.else
.if \kaup
kuap_save_amr_and_lock r9, r10, cr1
.endif
.endif
EXCEPTION_PROLOG_COMMON_2(\area, \vec)
.if \stack
ACCOUNT_STOLEN_TIME
.endif
.endm