diff options
Diffstat (limited to 'arch/nds32')
| -rw-r--r-- | arch/nds32/include/asm/highmem.h | 1 | ||||
| -rw-r--r-- | arch/nds32/include/asm/pgtable.h | 22 | ||||
| -rw-r--r-- | arch/nds32/kernel/head.S | 2 | ||||
| -rw-r--r-- | arch/nds32/kernel/module.c | 2 | ||||
| -rw-r--r-- | arch/nds32/kernel/traps.c | 15 | ||||
| -rw-r--r-- | arch/nds32/kernel/vdso.c | 6 | ||||
| -rw-r--r-- | arch/nds32/mm/fault.c | 17 | ||||
| -rw-r--r-- | arch/nds32/mm/init.c | 13 | ||||
| -rw-r--r-- | arch/nds32/mm/proc.c | 7 |
9 files changed, 28 insertions, 57 deletions
diff --git a/arch/nds32/include/asm/highmem.h b/arch/nds32/include/asm/highmem.h index 5717647d14d1..fe986d0e6e3f 100644 --- a/arch/nds32/include/asm/highmem.h +++ b/arch/nds32/include/asm/highmem.h @@ -7,7 +7,6 @@ #include <asm/proc-fns.h> #include <asm/kmap_types.h> #include <asm/fixmap.h> -#include <asm/pgtable.h> /* * Right now we initialize only a single pte table. It can be extended diff --git a/arch/nds32/include/asm/pgtable.h b/arch/nds32/include/asm/pgtable.h index 476cc4dd1709..419f984eef70 100644 --- a/arch/nds32/include/asm/pgtable.h +++ b/arch/nds32/include/asm/pgtable.h @@ -186,16 +186,10 @@ extern void paging_init(void); #define pte_clear(mm,addr,ptep) set_pte_at((mm),(addr),(ptep), __pte(0)) #define pte_page(pte) (pfn_to_page(pte_pfn(pte))) -#define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) -#define pte_offset_kernel(dir, address) ((pte_t *)pmd_page_kernel(*(dir)) + pte_index(address)) -#define pte_offset_map(dir, address) ((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address)) -#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address) -#define pmd_page_kernel(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) - -#define pte_unmap(pte) do { } while (0) -#define pte_unmap_nested(pte) do { } while (0) - -#define pmd_off_k(address) pmd_offset(pud_offset(p4d_offset(pgd_offset_k(address), (address)), (address)), (address)) +static unsigned long pmd_page_vaddr(pmd_t pmd) +{ + return ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)); +} #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) /* @@ -346,12 +340,6 @@ static inline pmd_t __mk_pmd(pte_t * ptep, unsigned long prot) * */ -/* to find an entry in a page-table-directory */ -#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1)) -#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) -/* to find an entry in a kernel page-table-directory */ -#define pgd_offset_k(addr) pgd_offset(&init_mm, addr) - static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { const unsigned long mask = 0xfff; @@ -374,8 +362,6 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; /* Needs to be defined here and not in linux/mm.h, as it is arch dependent */ #define kern_addr_valid(addr) (1) -#include <asm-generic/pgtable.h> - /* * We provide our own arch_get_unmapped_area to cope with VIPT caches. */ diff --git a/arch/nds32/kernel/head.S b/arch/nds32/kernel/head.S index fcefb62606ca..7347f00451a9 100644 --- a/arch/nds32/kernel/head.S +++ b/arch/nds32/kernel/head.S @@ -3,10 +3,10 @@ #include <linux/linkage.h> #include <linux/init.h> +#include <linux/pgtable.h> #include <asm/ptrace.h> #include <asm/asm-offsets.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <linux/sizes.h> #include <asm/thread_info.h> diff --git a/arch/nds32/kernel/module.c b/arch/nds32/kernel/module.c index 1e31829cbc2a..3897fd14a21d 100644 --- a/arch/nds32/kernel/module.c +++ b/arch/nds32/kernel/module.c @@ -5,7 +5,7 @@ #include <linux/elf.h> #include <linux/vmalloc.h> #include <linux/moduleloader.h> -#include <asm/pgtable.h> +#include <linux/pgtable.h> void *module_alloc(unsigned long size) { diff --git a/arch/nds32/kernel/traps.c b/arch/nds32/kernel/traps.c index f4d386b52622..6a9772ba7392 100644 --- a/arch/nds32/kernel/traps.c +++ b/arch/nds32/kernel/traps.c @@ -97,18 +97,19 @@ static void dump_instr(struct pt_regs *regs) } #define LOOP_TIMES (100) -static void __dump(struct task_struct *tsk, unsigned long *base_reg) +static void __dump(struct task_struct *tsk, unsigned long *base_reg, + const char *loglvl) { unsigned long ret_addr; int cnt = LOOP_TIMES, graph = 0; - pr_emerg("Call Trace:\n"); + printk("%sCall Trace:\n", loglvl); if (!IS_ENABLED(CONFIG_FRAME_POINTER)) { while (!kstack_end(base_reg)) { ret_addr = *base_reg++; if (__kernel_text_address(ret_addr)) { ret_addr = ftrace_graph_ret_addr( tsk, &graph, ret_addr, NULL); - print_ip_sym(ret_addr); + print_ip_sym(loglvl, ret_addr); } if (--cnt < 0) break; @@ -124,17 +125,17 @@ static void __dump(struct task_struct *tsk, unsigned long *base_reg) ret_addr = ftrace_graph_ret_addr( tsk, &graph, ret_addr, NULL); - print_ip_sym(ret_addr); + print_ip_sym(loglvl, ret_addr); } if (--cnt < 0) break; base_reg = (unsigned long *)next_fp; } } - pr_emerg("\n"); + printk("%s\n", loglvl); } -void show_stack(struct task_struct *tsk, unsigned long *sp) +void show_stack(struct task_struct *tsk, unsigned long *sp, const char *loglvl) { unsigned long *base_reg; @@ -151,7 +152,7 @@ void show_stack(struct task_struct *tsk, unsigned long *sp) else __asm__ __volatile__("\tori\t%0, $fp, #0\n":"=r"(base_reg)); } - __dump(tsk, base_reg); + __dump(tsk, base_reg, loglvl); barrier(); } diff --git a/arch/nds32/kernel/vdso.c b/arch/nds32/kernel/vdso.c index 90bcae6f8554..e16009a07971 100644 --- a/arch/nds32/kernel/vdso.c +++ b/arch/nds32/kernel/vdso.c @@ -130,7 +130,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) vdso_mapping_len += L1_cache_info[DCACHE].aliasing_num - 1; #endif - if (down_write_killable(&mm->mmap_sem)) + if (mmap_write_lock_killable(mm)) return -EINTR; addr = vdso_random_addr(vdso_mapping_len); @@ -185,12 +185,12 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) goto up_fail; } - up_write(&mm->mmap_sem); + mmap_write_unlock(mm); return 0; up_fail: mm->context.vdso = NULL; - up_write(&mm->mmap_sem); + mmap_write_unlock(mm); return ret; } diff --git a/arch/nds32/mm/fault.c b/arch/nds32/mm/fault.c index f331e533edc2..8fb73f6401a0 100644 --- a/arch/nds32/mm/fault.c +++ b/arch/nds32/mm/fault.c @@ -11,7 +11,6 @@ #include <linux/uaccess.h> #include <linux/perf_event.h> -#include <asm/pgtable.h> #include <asm/tlbflush.h> extern void die(const char *str, struct pt_regs *regs, long err); @@ -127,12 +126,12 @@ void do_page_fault(unsigned long entry, unsigned long addr, * validly references user space from well defined areas of the code, * we can bug out early if this is from code which shouldn't. */ - if (unlikely(!down_read_trylock(&mm->mmap_sem))) { + if (unlikely(!mmap_read_trylock(mm))) { if (!user_mode(regs) && !search_exception_tables(instruction_pointer(regs))) goto no_context; retry: - down_read(&mm->mmap_sem); + mmap_read_lock(mm); } else { /* * The above down_read_trylock() might have succeeded in which @@ -211,7 +210,7 @@ good_area: /* * If we need to retry but a fatal signal is pending, handle the - * signal first. We do not need to release the mmap_sem because it + * signal first. We do not need to release the mmap_lock because it * would already be released in __lock_page_or_retry in mm/filemap.c. */ if (fault_signal_pending(fault, regs)) { @@ -248,7 +247,7 @@ good_area: if (fault & VM_FAULT_RETRY) { flags |= FAULT_FLAG_TRIED; - /* No need to up_read(&mm->mmap_sem) as we would + /* No need to mmap_read_unlock(mm) as we would * have already released it in __lock_page_or_retry * in mm/filemap.c. */ @@ -256,7 +255,7 @@ good_area: } } - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); return; /* @@ -264,7 +263,7 @@ good_area: * Fix it, but check if it's kernel or user first.. */ bad_area: - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); bad_area_nosemaphore: @@ -324,14 +323,14 @@ no_context: */ out_of_memory: - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); if (!user_mode(regs)) goto no_context; pagefault_out_of_memory(); return; do_sigbus: - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); /* Kernel mode? Handle exceptions or die */ if (!user_mode(regs)) diff --git a/arch/nds32/mm/init.c b/arch/nds32/mm/init.c index 91147cca4b64..fa86f7b2f416 100644 --- a/arch/nds32/mm/init.c +++ b/arch/nds32/mm/init.c @@ -98,9 +98,6 @@ static pmd_t *fixmap_pmd_p; static void __init fixedrange_init(void) { unsigned long vaddr; - pgd_t *pgd; - p4d_t *p4d; - pud_t *pud; pmd_t *pmd; #ifdef CONFIG_HIGHMEM pte_t *pte; @@ -110,10 +107,7 @@ static void __init fixedrange_init(void) * Fixed mappings: */ vaddr = __fix_to_virt(__end_of_fixed_addresses - 1); - pgd = swapper_pg_dir + pgd_index(vaddr); - p4d = p4d_offset(pgd, vaddr); - pud = pud_offset(p4d, vaddr); - pmd = pmd_offset(pud, vaddr); + pmd = pmd_off_k(vaddr); fixmap_pmd_p = memblock_alloc(PAGE_SIZE, PAGE_SIZE); if (!fixmap_pmd_p) panic("%s: Failed to allocate %lu bytes align=0x%lx\n", @@ -126,10 +120,7 @@ static void __init fixedrange_init(void) */ vaddr = PKMAP_BASE; - pgd = swapper_pg_dir + pgd_index(vaddr); - p4d = p4d_offset(pgd, vaddr); - pud = pud_offset(p4d, vaddr); - pmd = pmd_offset(pud, vaddr); + pmd = pmd_off_k(vaddr); pte = memblock_alloc(PAGE_SIZE, PAGE_SIZE); if (!pte) panic("%s: Failed to allocate %lu bytes align=0x%lx\n", diff --git a/arch/nds32/mm/proc.c b/arch/nds32/mm/proc.c index 837ae7728830..848c845f5f33 100644 --- a/arch/nds32/mm/proc.c +++ b/arch/nds32/mm/proc.c @@ -5,7 +5,6 @@ #include <linux/sched.h> #include <linux/mm.h> #include <asm/nds32.h> -#include <asm/pgtable.h> #include <asm/tlbflush.h> #include <asm/cacheflush.h> #include <asm/l2_cache.h> @@ -16,14 +15,10 @@ extern struct cache_info L1_cache_info[2]; int va_kernel_present(unsigned long addr) { - p4d_t *p4d; - pud_t *pud; pmd_t *pmd; pte_t *ptep, pte; - p4d = p4d_offset(pgd_offset_k(addr), addr); - pud = pud_offset(p4d, addr); - pmd = pmd_offset(pud, addr); + pmd = pmd_off_k(addr); if (!pmd_none(*pmd)) { ptep = pte_offset_map(pmd, addr); pte = *ptep; |