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powerpc/32: replace LOAD_MSR_KERNEL() by LOAD_REG_IMMEDIATE()

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LOAD_MSR_KERNEL() and LOAD_REG_IMMEDIATE() are doing the same thing
in the same way. Drop LOAD_MSR_KERNEL()

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/8f04a6df0bc8949517fd8236d50c15008ccf9231.1566311636.git.christophe.leroy@c-s.fr
This commit is contained in:
Christophe Leroy
2019-08-20 14:34:13 +00:00
committed by Michael Ellerman
parent c691b4b83b
commit ba18025fb0
2 changed files with 13 additions and 26 deletions
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21
arch/powerpc/kernel/head_32.h
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@@ -4,19 +4,6 @@
#include <asm/ptrace.h> /* for STACK_FRAME_REGS_MARKER */
/*
* MSR_KERNEL is > 0x8000 on 4xx/Book-E since it include MSR_CE.
*/
.macro __LOAD_MSR_KERNEL r, x
.if \x >= 0x8000
lis \r, (\x)@h
ori \r, \r, (\x)@l
.else
li \r, (\x)
.endif
.endm
#define LOAD_MSR_KERNEL(r, x) __LOAD_MSR_KERNEL r, x
/*
* Exception entry code. This code runs with address translation
* turned off, i.e. using physical addresses.
@@ -92,7 +79,7 @@
#ifdef CONFIG_40x
rlwinm r9,r9,0,14,12 /* clear MSR_WE (necessary?) */
#else
LOAD_MSR_KERNEL(r10, MSR_KERNEL & ~(MSR_IR|MSR_DR)) /* can take exceptions */
LOAD_REG_IMMEDIATE(r10, MSR_KERNEL & ~(MSR_IR|MSR_DR)) /* can take exceptions */
MTMSRD(r10) /* (except for mach check in rtas) */
#endif
lis r10,STACK_FRAME_REGS_MARKER@ha /* exception frame marker */
@@ -140,10 +127,10 @@
* otherwise we might risk taking an interrupt before we tell lockdep
* they are enabled.
*/
LOAD_MSR_KERNEL(r10, MSR_KERNEL)
LOAD_REG_IMMEDIATE(r10, MSR_KERNEL)
rlwimi r10, r9, 0, MSR_EE
#else
LOAD_MSR_KERNEL(r10, MSR_KERNEL | MSR_EE)
LOAD_REG_IMMEDIATE(r10, MSR_KERNEL | MSR_EE)
#endif
#if defined(CONFIG_PPC_8xx) && defined(CONFIG_PERF_EVENTS)
mtspr SPRN_NRI, r0
@@ -187,7 +174,7 @@ label:
#define EXC_XFER_TEMPLATE(hdlr, trap, msr, tfer, ret) \
li r10,trap; \
stw r10,_TRAP(r11); \
LOAD_MSR_KERNEL(r10, msr); \
LOAD_REG_IMMEDIATE(r10, msr); \
bl tfer; \
.long hdlr; \
.long ret