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| author |   Christophe Leroy <christophe.leroy@c-s.fr> | 2019-12-21 08:32:38 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2020-01-27 22:37:24 +1100 |
| commit | cd08f109e26231b279bcc0388428afcac6408ec6 (patch) | |
| tree | 327c02894e56cd4dc7de98da709ae778338799bd /arch/powerpc/kernel/entry_32.S | |
| parent | powerpc/32s: Avoid crossing page boundary while changing SRR0/1. (diff) | |
| download | linux-dev-cd08f109e26231b279bcc0388428afcac6408ec6.tar.xz linux-dev-cd08f109e26231b279bcc0388428afcac6408ec6.zip | |
powerpc/32s: Enable CONFIG_VMAP_STACK
A few changes to retrieve DAR and DSISR from struct regs
instead of retrieving them directly, as they may have
changed due to a TLB miss.
Also modifies hash_page() and friends to work with virtual
data addresses instead of physical ones. Same on load_up_fpu()
and load_up_altivec().
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[mpe: Fix tovirt_vmstack call in head_32.S to fix CHRP build]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/2e2509a242fd5f3e23df4a06530c18060c4d321e.1576916812.git.christophe.leroy@c-s.fr
Diffstat (limited to 'arch/powerpc/kernel/entry_32.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_32.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index 7e5a1722e4f2..3795654d15d1 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -1339,7 +1339,7 @@ _GLOBAL(enter_rtas) lis r6,1f@ha /* physical return address for rtas */ addi r6,r6,1f@l tophys(r6,r6) - tophys(r7,r1) + tophys_novmstack r7, r1 lwz r8,RTASENTRY(r4) lwz r4,RTASBASE(r4) mfmsr r9 |