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powerpc: Update comments in preparation for THREAD_INFO_IN_TASK

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Update a few comments that talk about current_thread_info() in
preparation for THREAD_INFO_IN_TASK.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Split out of larger patch]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy 2019-01-17 23:25:53 +11:00 committed by Michael Ellerman
parent 05b98791ec
commit 4e67bfd7aa
4 changed files with 4 additions and 4 deletions
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2
arch/powerpc/include/asm/reg.h
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@ -1062,7 +1062,7 @@
* - SPRG9 debug exception scratch
*
* All 32-bit:
* - SPRG3 current thread_info pointer
* - SPRG3 current thread_struct physical addr pointer
* (virtual on BookE, physical on others)
*
* 32-bit classic:

2
arch/powerpc/kernel/head_32.S
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@ -831,7 +831,7 @@ __secondary_start:
bl init_idle_6xx
#endif /* CONFIG_PPC_BOOK3S_32 */
/* get current_thread_info and current */
/* get current's stack and current */
lis r1,secondary_ti@ha
tophys(r1,r1)
lwz r1,secondary_ti@l(r1)

2
arch/powerpc/kernel/head_44x.S
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@ -1019,7 +1019,7 @@ _GLOBAL(start_secondary_47x)
/* Now we can get our task struct and real stack pointer */
/* Get current_thread_info and current */
/* Get current's stack and current */
lis r1,secondary_ti@ha
lwz r1,secondary_ti@l(r1)
lwz r2,TI_TASK(r1)

2
arch/powerpc/kernel/head_fsl_booke.S
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@ -1091,7 +1091,7 @@ __secondary_start:
mr r4,r24 /* Why? */
bl call_setup_cpu
/* get current_thread_info and current */
/* get current's stack and current */
lis r1,secondary_ti@ha
lwz r1,secondary_ti@l(r1)
lwz r2,TI_TASK(r1)