powerpc: Update comments in preparation for THREAD_INFO_IN_TASK

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>

diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index c25880e..c5b2aff 100644 (file)
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -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:

diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
index e07cfd5..2112805 100644 (file)
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_32.S
@@ -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)

diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S
index bf23c19..4e8c8bf 100644 (file)
--- a/arch/powerpc/kernel/head_44x.S
+++ b/arch/powerpc/kernel/head_44x.S
@@ -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)

diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
index 42d8d6f..6301bb2 100644 (file)
--- a/arch/powerpc/kernel/head_fsl_booke.S
+++ b/arch/powerpc/kernel/head_fsl_booke.S
@@ -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)