diff options
Diffstat (limited to 'arch/arm/include/asm')
| -rw-r--r-- | arch/arm/include/asm/cputype.h | 14 | ||||
| -rw-r--r-- | arch/arm/include/asm/div64.h | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/mcpm.h | 7 | ||||
| -rw-r--r-- | arch/arm/include/asm/tlb.h | 12 |
4 files changed, 26 insertions, 9 deletions
diff --git a/arch/arm/include/asm/cputype.h b/arch/arm/include/asm/cputype.h index c651e3b26ec7..4764344367d4 100644 --- a/arch/arm/include/asm/cputype.h +++ b/arch/arm/include/asm/cputype.h @@ -222,22 +222,22 @@ static inline int cpu_is_xsc3(void) #endif /* - * Marvell's PJ4 core is based on V7 version. It has some modification - * for coprocessor setting. For this reason, we need a way to distinguish - * it. + * Marvell's PJ4 and PJ4B cores are based on V7 version, + * but require a specical sequence for enabling coprocessors. + * For this reason, we need a way to distinguish them. */ -#ifndef CONFIG_CPU_PJ4 -#define cpu_is_pj4() 0 -#else +#if defined(CONFIG_CPU_PJ4) || defined(CONFIG_CPU_PJ4B) static inline int cpu_is_pj4(void) { unsigned int id; id = read_cpuid_id(); - if ((id & 0xfffffff0) == 0x562f5840) + if ((id & 0xff0fff00) == 0x560f5800) return 1; return 0; } +#else +#define cpu_is_pj4() 0 #endif #endif diff --git a/arch/arm/include/asm/div64.h b/arch/arm/include/asm/div64.h index 191ada6e4d2d..662c7bd06108 100644 --- a/arch/arm/include/asm/div64.h +++ b/arch/arm/include/asm/div64.h @@ -156,7 +156,7 @@ /* Select the best insn combination to perform the */ \ /* actual __m * __n / (__p << 64) operation. */ \ if (!__c) { \ - asm ( "umull %Q0, %R0, %1, %Q2\n\t" \ + asm ( "umull %Q0, %R0, %Q1, %Q2\n\t" \ "mov %Q0, #0" \ : "=&r" (__res) \ : "r" (__m), "r" (__n) \ diff --git a/arch/arm/include/asm/mcpm.h b/arch/arm/include/asm/mcpm.h index 608516ebabfe..a5ff410dcdb6 100644 --- a/arch/arm/include/asm/mcpm.h +++ b/arch/arm/include/asm/mcpm.h @@ -54,6 +54,13 @@ void mcpm_set_early_poke(unsigned cpu, unsigned cluster, */ /** + * mcpm_is_available - returns whether MCPM is initialized and available + * + * This returns true or false accordingly. + */ +bool mcpm_is_available(void); + +/** * mcpm_cpu_power_up - make given CPU in given cluster runable * * @cpu: CPU number within given cluster diff --git a/arch/arm/include/asm/tlb.h b/arch/arm/include/asm/tlb.h index 0baf7f0d9394..f1a0dace3efe 100644 --- a/arch/arm/include/asm/tlb.h +++ b/arch/arm/include/asm/tlb.h @@ -98,15 +98,25 @@ static inline void __tlb_alloc_page(struct mmu_gather *tlb) } } -static inline void tlb_flush_mmu(struct mmu_gather *tlb) +static inline void tlb_flush_mmu_tlbonly(struct mmu_gather *tlb) { tlb_flush(tlb); +} + +static inline void tlb_flush_mmu_free(struct mmu_gather *tlb) +{ free_pages_and_swap_cache(tlb->pages, tlb->nr); tlb->nr = 0; if (tlb->pages == tlb->local) __tlb_alloc_page(tlb); } +static inline void tlb_flush_mmu(struct mmu_gather *tlb) +{ + tlb_flush_mmu_tlbonly(tlb); + tlb_flush_mmu_free(tlb); +} + static inline void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end) { |