[PATCH v2 3/6] powerpc: kill mfvtb()
From: Kevin Hao <hidden>
Date: 2015-08-24 11:21:13
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
This function is only used by get_vtb(). They are almost the same except the reading from the real register. Move the mfspr() to get_vtb() and kill the function mfvtb(). With this, we can eliminate the use of cpu_has_feature() in very core header file like reg.h. This is a preparation for the use of jump label for cpu_has_feature(). Signed-off-by: Kevin Hao <redacted> --- v2: No change. arch/powerpc/include/asm/reg.h | 9 --------- arch/powerpc/include/asm/time.h | 2 +- 2 files changed, 1 insertion(+), 10 deletions(-)
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index aa1cc5f015ee..d0b5f4b63776 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h@@ -1207,15 +1207,6 @@ : "r" ((unsigned long)(v)) \ : "memory") -static inline unsigned long mfvtb (void) -{ -#ifdef CONFIG_PPC_BOOK3S_64 - if (cpu_has_feature(CPU_FTR_ARCH_207S)) - return mfspr(SPRN_VTB); -#endif - return 0; -} - #ifdef __powerpc64__ #if defined(CONFIG_PPC_CELL) || defined(CONFIG_PPC_FSL_BOOK3E) #define mftb() ({unsigned long rval; \
diff --git a/arch/powerpc/include/asm/time.h b/arch/powerpc/include/asm/time.h
index 10fc784a2ad4..6f69828458fb 100644
--- a/arch/powerpc/include/asm/time.h
+++ b/arch/powerpc/include/asm/time.h@@ -106,7 +106,7 @@ static inline u64 get_vtb(void) { #ifdef CONFIG_PPC_BOOK3S_64 if (cpu_has_feature(CPU_FTR_ARCH_207S)) - return mfvtb(); + return mfspr(SPRN_VTB); #endif return 0; }
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2.1.0