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powerpc/8xx: exception InstructionAccess does not exist on MPC8xx

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Exception InstructionAccess does not exist on MPC8xx. No need to branch there from somewhere else.
Handling can be done directly in InstructionTLBError Exception.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
LEROY Christophe 2014-09-19 10:36:06 +02:00 committed by Scott Wood
parent 0df1f2487d
commit 7439b37e75
1 changed files with 7 additions and 8 deletions
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15
arch/powerpc/kernel/head_8xx.S
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@ -234,15 +234,10 @@ DataAccess:
EXC_XFER_LITE(0x300, handle_page_fault)
/* Instruction access exception.
* This is "never generated" by the MPC8xx. We jump to it for other
* translation errors.
* This is "never generated" by the MPC8xx.
*/
. = 0x400
InstructionAccess:
EXCEPTION_PROLOG
mr r4,r12
mr r5,r9
EXC_XFER_LITE(0x400, handle_page_fault)
/* External interrupt */
EXCEPTION(0x500, HardwareInterrupt, do_IRQ, EXC_XFER_LITE)
@ -382,7 +377,7 @@ InstructionTLBMiss:
#endif
mfspr r10, SPRN_SPRG_SCRATCH2
EXCEPTION_EPILOG_0
b InstructionAccess
b InstructionTLBError
. = 0x1200
DataStoreTLBMiss:
@ -477,7 +472,11 @@ DataStoreTLBMiss:
*/
. = 0x1300
InstructionTLBError:
b InstructionAccess
EXCEPTION_PROLOG
mr r4,r12
mr r5,r9
/* 0x400 is InstructionAccess exception, needed by bad_page_fault() */
EXC_XFER_LITE(0x400, handle_page_fault)
/* This is the data TLB error on the MPC8xx. This could be due to
* many reasons, including a dirty update to a pte. We bail out to