[PATCH 03/10] powerpc/64e/interrupt: use new interrupt return

[Christophe Leroy]

Le 15/03/2021 à 08:50, Christophe Leroy a écrit :
> 
> 
> Le 15/03/2021 à 04:17, Nicholas Piggin a écrit :
>> Update the new C and asm interrupt return code to account for 64e
>> specifics, switch over to use it.
>>
>> The now-unused old ret_from_except code, that was moved to 64e after the
>> 64s conversion, is removed.
>>
>> Signed-off-by: Nicholas Piggin <npiggin at gmail.com>
>> ---
>>   arch/powerpc/include/asm/asm-prototypes.h |   2 -
>>   arch/powerpc/kernel/entry_64.S            |   9 +-
>>   arch/powerpc/kernel/exceptions-64e.S      | 321 ++--------------------
>>   arch/powerpc/kernel/interrupt.c           |  27 +-
>>   arch/powerpc/kernel/irq.c                 |  76 -----
>>   5 files changed, 56 insertions(+), 379 deletions(-)
>>
>> @@ -1016,284 +1021,8 @@ alignment_more:
> 
> ...
> 
>> -fast_exception_return:
>> -    wrteei    0
>> -1:    mr    r0,r13
>> -    ld    r10,_MSR(r1)
>> -    REST_4GPRS(2, r1)
>> -    andi.    r6,r10,MSR_PR
>> -    REST_2GPRS(6, r1)
>> -    beq    1f
>> -    ACCOUNT_CPU_USER_EXIT(r13, r10, r11)
> 
> Then ACCOUNT_CPU_USER_EXIT can be removed from asm/ppc_asm.h
> 

And all associated definitions in asm-offsets.c

And also ACCOUNT_USER_TIME which was likely left over after the removal of ACCOUNT_CPU_USER_ENTRY()