diff options
Diffstat (limited to 'arch/nds32/mm')
| -rw-r--r-- | arch/nds32/mm/Makefile | 6 | ||||
| -rw-r--r-- | arch/nds32/mm/alignment.c | 8 | ||||
| -rw-r--r-- | arch/nds32/mm/fault.c | 13 | ||||
| -rw-r--r-- | arch/nds32/mm/init.c | 2 |
4 files changed, 18 insertions, 11 deletions
diff --git a/arch/nds32/mm/Makefile b/arch/nds32/mm/Makefile index 6b6855852223..7c5c15ad854a 100644 --- a/arch/nds32/mm/Makefile +++ b/arch/nds32/mm/Makefile @@ -4,4 +4,8 @@ obj-y := extable.o tlb.o \ obj-$(CONFIG_ALIGNMENT_TRAP) += alignment.o obj-$(CONFIG_HIGHMEM) += highmem.o -CFLAGS_proc-n13.o += -fomit-frame-pointer + +ifdef CONFIG_FUNCTION_TRACER +CFLAGS_REMOVE_proc.o = $(CC_FLAGS_FTRACE) +endif +CFLAGS_proc.o += -fomit-frame-pointer diff --git a/arch/nds32/mm/alignment.c b/arch/nds32/mm/alignment.c index e1aed9dc692d..c8b9061a2ee3 100644 --- a/arch/nds32/mm/alignment.c +++ b/arch/nds32/mm/alignment.c @@ -289,13 +289,13 @@ static inline int do_16(unsigned long inst, struct pt_regs *regs) unaligned_addr += shift; if (load) { - if (!access_ok(VERIFY_READ, (void *)unaligned_addr, len)) + if (!access_ok((void *)unaligned_addr, len)) return -EACCES; get_data(unaligned_addr, &target_val, len); *idx_to_addr(regs, target_idx) = target_val; } else { - if (!access_ok(VERIFY_WRITE, (void *)unaligned_addr, len)) + if (!access_ok((void *)unaligned_addr, len)) return -EACCES; target_val = *idx_to_addr(regs, target_idx); set_data((void *)unaligned_addr, target_val, len); @@ -479,7 +479,7 @@ static inline int do_32(unsigned long inst, struct pt_regs *regs) if (load) { - if (!access_ok(VERIFY_READ, (void *)unaligned_addr, len)) + if (!access_ok((void *)unaligned_addr, len)) return -EACCES; get_data(unaligned_addr, &target_val, len); @@ -491,7 +491,7 @@ static inline int do_32(unsigned long inst, struct pt_regs *regs) *idx_to_addr(regs, RT(inst)) = target_val; } else { - if (!access_ok(VERIFY_WRITE, (void *)unaligned_addr, len)) + if (!access_ok((void *)unaligned_addr, len)) return -EACCES; target_val = *idx_to_addr(regs, RT(inst)); diff --git a/arch/nds32/mm/fault.c b/arch/nds32/mm/fault.c index b740534b152c..68d5f2a27f38 100644 --- a/arch/nds32/mm/fault.c +++ b/arch/nds32/mm/fault.c @@ -9,6 +9,7 @@ #include <linux/init.h> #include <linux/hardirq.h> #include <linux/uaccess.h> +#include <linux/perf_event.h> #include <asm/pgtable.h> #include <asm/tlbflush.h> @@ -169,8 +170,6 @@ good_area: mask = VM_EXEC; else { mask = VM_READ | VM_WRITE; - if (vma->vm_flags & VM_WRITE) - flags |= FAULT_FLAG_WRITE; } } else if (entry == ENTRY_TLB_MISC) { switch (error_code & ITYPE_mskETYPE) { @@ -231,11 +230,17 @@ good_area: * attempt. If we go through a retry, it is extremely likely that the * page will be found in page cache at that point. */ + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, addr); if (flags & FAULT_FLAG_ALLOW_RETRY) { - if (fault & VM_FAULT_MAJOR) + if (fault & VM_FAULT_MAJOR) { tsk->maj_flt++; - else + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, + 1, regs, addr); + } else { tsk->min_flt++; + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, + 1, regs, addr); + } if (fault & VM_FAULT_RETRY) { flags &= ~FAULT_FLAG_ALLOW_RETRY; flags |= FAULT_FLAG_TRIED; diff --git a/arch/nds32/mm/init.c b/arch/nds32/mm/init.c index 131104bd2538..253f79fc7196 100644 --- a/arch/nds32/mm/init.c +++ b/arch/nds32/mm/init.c @@ -21,8 +21,6 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); DEFINE_SPINLOCK(anon_alias_lock); extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; -extern unsigned long phys_initrd_start; -extern unsigned long phys_initrd_size; /* * empty_zero_page is a special page that is used for |