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| author |  Nicholas Piggin <npiggin@gmail.com>
| 2021-02-08 16:34:06 +1000 |
|---|---|---|
| committer |  Michael Ellerman <mpe@ellerman.id.au>
| 2021-02-11 23:35:05 +1100 |
| commit | ac7c5e9b08acdb54ef3525abcad24bdb3ed05551 (patch) | |
| tree | e6424ec04c8c9aea8883ab44d1dc7665ac43c7ab /arch/powerpc/kernel/asm-offsets.c | |
| parent | powerpc/64s: syscall real mode entry use mtmsrd rather than rfid (diff) | |
| download | linux-ac7c5e9b08acdb54ef3525abcad24bdb3ed05551.tar.gz linux-ac7c5e9b08acdb54ef3525abcad24bdb3ed05551.tar.bz2 linux-ac7c5e9b08acdb54ef3525abcad24bdb3ed05551.zip | |
powerpc/64s: Remove EXSLB interrupt save area
SLB faults should not be taken while the PACA save areas are live, all
memory accesses should be fetches from the kernel text, and access to
PACA and the current stack, before C code is called or any other
accesses are made.
All of these have pinned SLBs so will not take a SLB fault. Therefore
EXSLB is not be required.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210208063406.331655-1-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/kernel/asm-offsets.c')
| -rw-r--r-- | arch/powerpc/kernel/asm-offsets.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index b12d7c049bfe..31edd9bbce75 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -255,7 +255,6 @@ int main(void) #endif /* CONFIG_PPC_MM_SLICES */ OFFSET(PACA_EXGEN, paca_struct, exgen); OFFSET(PACA_EXMC, paca_struct, exmc); - OFFSET(PACA_EXSLB, paca_struct, exslb); OFFSET(PACA_EXNMI, paca_struct, exnmi); #ifdef CONFIG_PPC_PSERIES OFFSET(PACALPPACAPTR, paca_struct, lppaca_ptr); |