diff options
| author |   Christophe Leroy <christophe.leroy@c-s.fr> | 2019-02-04 22:16:48 +1100 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-02-23 22:31:40 +1100 |
| commit | 7aef376679a428c6b7792fb4ce93364fd02caad4 (patch) | |
| tree | b610e5df69930203562bd58d60da1c2d330017d0 | |
| parent | powerpc: Use task_stack_page() in current_pt_regs() (diff) | |
| download | linux-dev-7aef376679a428c6b7792fb4ce93364fd02caad4.tar.xz linux-dev-7aef376679a428c6b7792fb4ce93364fd02caad4.zip | |
powerpc/idle/6xx: Use r1 with CURRENT_THREAD_INFO()
Make sure CURRENT_THREAD_INFO() is used with r1 which is the virtual
address of the stack, in order to ease the switch to r2 when we enable
THREAD_INFO_IN_TASK, as we have no register having the phys address of
current.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[mpe: Split out of larger patch]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| -rw-r--r-- | arch/powerpc/kernel/idle_6xx.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/idle_6xx.S b/arch/powerpc/kernel/idle_6xx.S index ff026c9d3cab..d9b6e7e0b5e3 100644 --- a/arch/powerpc/kernel/idle_6xx.S +++ b/arch/powerpc/kernel/idle_6xx.S @@ -159,7 +159,8 @@ _GLOBAL(power_save_ppc32_restore) stw r9,_NIP(r11) /* make it do a blr */ #ifdef CONFIG_SMP - CURRENT_THREAD_INFO(r12, r11) + CURRENT_THREAD_INFO(r12, r1) + tophys(r12, r12) lwz r11,TI_CPU(r12) /* get cpu number * 4 */ slwi r11,r11,2 #else |