From 15c102153e722cc6e0729764a7068c209a7469cd Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Thu, 1 Oct 2020 12:42:39 +0000 Subject: powerpc/time: Rename mftbl() to mftb() On PPC64, we have mftb(). On PPC32, we have mftbl() and an #define mftb() mftbl(). mftb() and mftbl() are equivalent, their purpose is to read the content of SPRN_TRBL, as returned by 'mftb' simplified instruction. binutils seems to define 'mftbl' instruction as an equivalent of 'mftb'. However in both 32 bits and 64 bits documentation, only 'mftb' is defined, and when performing a disassembly with objdump, the displayed instruction is 'mftb' No need to have two ways to do the same thing with different names, rename mftbl() to have only mftb(). Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/94dc68d3d9ef9eb549796d4b938b6ba0305a049b.1601556145.git.christophe.leroy@csgroup.eu --- arch/powerpc/include/asm/reg.h | 5 ++--- arch/powerpc/include/asm/time.h | 2 +- 2 files changed, 3 insertions(+), 4 deletions(-) (limited to 'arch/powerpc') diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index 788058af1d44..c66dcdb47c44 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -1439,19 +1439,18 @@ static inline void msr_check_and_clear(unsigned long bits) #else /* __powerpc64__ */ #if defined(CONFIG_PPC_8xx) -#define mftbl() ({unsigned long rval; \ +#define mftb() ({unsigned long rval; \ asm volatile("mftbl %0" : "=r" (rval)); rval;}) #define mftbu() ({unsigned long rval; \ asm volatile("mftbu %0" : "=r" (rval)); rval;}) #else -#define mftbl() ({unsigned long rval; \ +#define mftb() ({unsigned long rval; \ asm volatile("mfspr %0, %1" : "=r" (rval) : \ "i" (SPRN_TBRL)); rval;}) #define mftbu() ({unsigned long rval; \ asm volatile("mfspr %0, %1" : "=r" (rval) : \ "i" (SPRN_TBRU)); rval;}) #endif -#define mftb() mftbl() #endif /* !__powerpc64__ */ #define mttbl(v) asm volatile("mttbl %0":: "r"(v)) diff --git a/arch/powerpc/include/asm/time.h b/arch/powerpc/include/asm/time.h index a0c8ae4cb27c..6e681160981b 100644 --- a/arch/powerpc/include/asm/time.h +++ b/arch/powerpc/include/asm/time.h @@ -47,7 +47,7 @@ struct div_result { static inline unsigned long get_tbl(void) { - return mftbl(); + return mftb(); } static inline unsigned int get_tbu(void) -- cgit v1.2.3