From: Greg Ungerer <[email protected]> The ColdFire V4e MMU is unlike any of the other m68k MMU hardware. It needs its own TLB flush support code.
Signed-off-by: Greg Ungerer <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]> --- arch/m68k/include/asm/tlbflush.h | 23 +++++++++++++++++------ 1 files changed, 17 insertions(+), 6 deletions(-) diff --git a/arch/m68k/include/asm/tlbflush.h b/arch/m68k/include/asm/tlbflush.h index a6b4ed4..965ea35 100644 --- a/arch/m68k/include/asm/tlbflush.h +++ b/arch/m68k/include/asm/tlbflush.h @@ -5,10 +5,13 @@ #ifndef CONFIG_SUN3 #include <asm/current.h> +#include <asm/mcfmmu.h> static inline void flush_tlb_kernel_page(void *addr) { - if (CPU_IS_040_OR_060) { + if (CPU_IS_COLDFIRE) { + mmu_write(MMUOR, MMUOR_CNL); + } else if (CPU_IS_040_OR_060) { mm_segment_t old_fs = get_fs(); set_fs(KERNEL_DS); __asm__ __volatile__(".chip 68040\n\t" @@ -25,12 +28,15 @@ static inline void flush_tlb_kernel_page(void *addr) */ static inline void __flush_tlb(void) { - if (CPU_IS_040_OR_060) + if (CPU_IS_COLDFIRE) { + mmu_write(MMUOR, MMUOR_CNL); + } else if (CPU_IS_040_OR_060) { __asm__ __volatile__(".chip 68040\n\t" "pflushan\n\t" ".chip 68k"); - else if (CPU_IS_020_OR_030) + } else if (CPU_IS_020_OR_030) { __asm__ __volatile__("pflush #0,#4"); + } } static inline void __flush_tlb040_one(unsigned long addr) @@ -43,7 +49,9 @@ static inline void __flush_tlb040_one(unsigned long addr) static inline void __flush_tlb_one(unsigned long addr) { - if (CPU_IS_040_OR_060) + if (CPU_IS_COLDFIRE) + mmu_write(MMUOR, MMUOR_CNL); + else if (CPU_IS_040_OR_060) __flush_tlb040_one(addr); else if (CPU_IS_020_OR_030) __asm__ __volatile__("pflush #0,#4,(%0)" : : "a" (addr)); @@ -56,12 +64,15 @@ static inline void __flush_tlb_one(unsigned long addr) */ static inline void flush_tlb_all(void) { - if (CPU_IS_040_OR_060) + if (CPU_IS_COLDFIRE) { + mmu_write(MMUOR, MMUOR_CNL); + } else if (CPU_IS_040_OR_060) { __asm__ __volatile__(".chip 68040\n\t" "pflusha\n\t" ".chip 68k"); - else if (CPU_IS_020_OR_030) + } else if (CPU_IS_020_OR_030) { __asm__ __volatile__("pflusha"); + } } static inline void flush_tlb_mm(struct mm_struct *mm) -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-m68k" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
