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powerpc/32: Remove CLR_TOP32

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CLR_TOP32() is defined as blank. Last useful instance of CLR_TOP32()
was removed by commit 40ef8cbc6d ("powerpc: Get 64-bit configs to
compile with ARCH=powerpc") in 2005.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy 2016-08-05 13:27:59 +02:00 committed by Michael Ellerman
parent 6b8cb66a6a
commit 148151a66a
4 changed files with 0 additions and 6 deletions
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1
arch/powerpc/include/asm/ppc_asm.h
View File

@ -511,7 +511,6 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
#endif
#define MTMSRD(r) mtmsr r
#define MTMSR_EERI(reg) mtmsr reg
#define CLR_TOP32(r)
#endif
#endif /* __KERNEL__ */

1
arch/powerpc/kernel/entry_32.S
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@ -654,7 +654,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_SPE)
#endif /* CONFIG_SMP */
tophys(r0,r4)
CLR_TOP32(r0)
mtspr SPRN_SPRG_THREAD,r0 /* Update current THREAD phys addr */
lwz r1,KSP(r4) /* Load new stack pointer */

3
arch/powerpc/kernel/head_32.S
View File

@ -266,7 +266,6 @@ __secondary_hold_acknowledge:
#define EXCEPTION_PROLOG_2 \
CLR_TOP32(r11); \
stw r10,_CCR(r11); /* save registers */ \
stw r12,GPR12(r11); \
stw r9,GPR9(r11); \
@ -862,7 +861,6 @@ __secondary_start:
/* ptr to phys current thread */
tophys(r4,r2)
addi r4,r4,THREAD /* phys address of our thread_struct */
CLR_TOP32(r4)
mtspr SPRN_SPRG_THREAD,r4
li r3,0
mtspr SPRN_SPRG_RTAS,r3 /* 0 => not in RTAS */
@ -949,7 +947,6 @@ start_here:
/* ptr to phys current thread */
tophys(r4,r2)
addi r4,r4,THREAD /* init task's THREAD */
CLR_TOP32(r4)
mtspr SPRN_SPRG_THREAD,r4
li r3,0
mtspr SPRN_SPRG_RTAS,r3 /* 0 => not in RTAS */

1
arch/powerpc/kernel/head_8xx.S
View File

@ -151,7 +151,6 @@ turn_on_mmu:
#define EXCEPTION_PROLOG_2 \
CLR_TOP32(r11); \
stw r10,_CCR(r11); /* save registers */ \
stw r12,GPR12(r11); \
stw r9,GPR9(r11); \