diff options
Diffstat (limited to 'kernel/arch/sparc/include/asm')
| -rw-r--r-- | kernel/arch/sparc/include/asm/head_64.h | 4 | ||||
| -rw-r--r-- | kernel/arch/sparc/include/asm/mmu_64.h | 3 | ||||
| -rw-r--r-- | kernel/arch/sparc/include/asm/pgtable_64.h | 43 | ||||
| -rw-r--r-- | kernel/arch/sparc/include/asm/tlbflush_64.h | 3 | ||||
| -rw-r--r-- | kernel/arch/sparc/include/asm/ttable.h | 8 | ||||
| -rw-r--r-- | kernel/arch/sparc/include/asm/uaccess_32.h | 4 | ||||
| -rw-r--r-- | kernel/arch/sparc/include/asm/uaccess_64.h | 66 |
7 files changed, 50 insertions, 81 deletions
diff --git a/kernel/arch/sparc/include/asm/head_64.h b/kernel/arch/sparc/include/asm/head_64.h index 10e9dabc4..f0700cfee 100644 --- a/kernel/arch/sparc/include/asm/head_64.h +++ b/kernel/arch/sparc/include/asm/head_64.h @@ -15,6 +15,10 @@ #define PTREGS_OFF (STACK_BIAS + STACKFRAME_SZ) +#define RTRAP_PSTATE (PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV|PSTATE_IE) +#define RTRAP_PSTATE_IRQOFF (PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV) +#define RTRAP_PSTATE_AG_IRQOFF (PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV|PSTATE_AG) + #define __CHEETAH_ID 0x003e0014 #define __JALAPENO_ID 0x003e0016 #define __SERRANO_ID 0x003e0022 diff --git a/kernel/arch/sparc/include/asm/mmu_64.h b/kernel/arch/sparc/include/asm/mmu_64.h index 70067ce18..f7de0dbc3 100644 --- a/kernel/arch/sparc/include/asm/mmu_64.h +++ b/kernel/arch/sparc/include/asm/mmu_64.h @@ -92,7 +92,8 @@ struct tsb_config { typedef struct { spinlock_t lock; unsigned long sparc64_ctx_val; - unsigned long huge_pte_count; + unsigned long hugetlb_pte_count; + unsigned long thp_pte_count; struct tsb_config tsb_block[MM_NUM_TSBS]; struct hv_tsb_descr tsb_descr[MM_NUM_TSBS]; } mm_context_t; diff --git a/kernel/arch/sparc/include/asm/pgtable_64.h b/kernel/arch/sparc/include/asm/pgtable_64.h index 131d36fcd..408b715c9 100644 --- a/kernel/arch/sparc/include/asm/pgtable_64.h +++ b/kernel/arch/sparc/include/asm/pgtable_64.h @@ -375,7 +375,7 @@ static inline pgprot_t pgprot_noncached(pgprot_t prot) #define pgprot_noncached pgprot_noncached #if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE) -static inline pte_t pte_mkhuge(pte_t pte) +static inline unsigned long __pte_huge_mask(void) { unsigned long mask; @@ -390,8 +390,19 @@ static inline pte_t pte_mkhuge(pte_t pte) : "=r" (mask) : "i" (_PAGE_SZHUGE_4U), "i" (_PAGE_SZHUGE_4V)); - return __pte(pte_val(pte) | mask); + return mask; +} + +static inline pte_t pte_mkhuge(pte_t pte) +{ + return __pte(pte_val(pte) | __pte_huge_mask()); +} + +static inline bool is_hugetlb_pte(pte_t pte) +{ + return !!(pte_val(pte) & __pte_huge_mask()); } + #ifdef CONFIG_TRANSPARENT_HUGEPAGE static inline pmd_t pmd_mkhuge(pmd_t pmd) { @@ -403,6 +414,11 @@ static inline pmd_t pmd_mkhuge(pmd_t pmd) return __pmd(pte_val(pte)); } #endif +#else +static inline bool is_hugetlb_pte(pte_t pte) +{ + return false; +} #endif static inline pte_t pte_mkdirty(pte_t pte) @@ -865,6 +881,19 @@ static inline unsigned long pud_pfn(pud_t pud) void tlb_batch_add(struct mm_struct *mm, unsigned long vaddr, pte_t *ptep, pte_t orig, int fullmm); +static void maybe_tlb_batch_add(struct mm_struct *mm, unsigned long vaddr, + pte_t *ptep, pte_t orig, int fullmm) +{ + /* It is more efficient to let flush_tlb_kernel_range() + * handle init_mm tlb flushes. + * + * SUN4V NOTE: _PAGE_VALID is the same value in both the SUN4U + * and SUN4V pte layout, so this inline test is fine. + */ + if (likely(mm != &init_mm) && pte_accessible(mm, orig)) + tlb_batch_add(mm, vaddr, ptep, orig, fullmm); +} + #define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm, unsigned long addr, @@ -881,15 +910,7 @@ static inline void __set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t orig = *ptep; *ptep = pte; - - /* It is more efficient to let flush_tlb_kernel_range() - * handle init_mm tlb flushes. - * - * SUN4V NOTE: _PAGE_VALID is the same value in both the SUN4U - * and SUN4V pte layout, so this inline test is fine. - */ - if (likely(mm != &init_mm) && pte_accessible(mm, orig)) - tlb_batch_add(mm, addr, ptep, orig, fullmm); + maybe_tlb_batch_add(mm, addr, ptep, orig, fullmm); } #define set_pte_at(mm,addr,ptep,pte) \ diff --git a/kernel/arch/sparc/include/asm/tlbflush_64.h b/kernel/arch/sparc/include/asm/tlbflush_64.h index dea1cfa21..a8e192e90 100644 --- a/kernel/arch/sparc/include/asm/tlbflush_64.h +++ b/kernel/arch/sparc/include/asm/tlbflush_64.h @@ -8,6 +8,7 @@ #define TLB_BATCH_NR 192 struct tlb_batch { + bool huge; struct mm_struct *mm; unsigned long tlb_nr; unsigned long active; @@ -16,7 +17,7 @@ struct tlb_batch { void flush_tsb_kernel_range(unsigned long start, unsigned long end); void flush_tsb_user(struct tlb_batch *tb); -void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr); +void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr, bool huge); /* TLB flush operations. */ diff --git a/kernel/arch/sparc/include/asm/ttable.h b/kernel/arch/sparc/include/asm/ttable.h index 71b5a6752..781b9f1db 100644 --- a/kernel/arch/sparc/include/asm/ttable.h +++ b/kernel/arch/sparc/include/asm/ttable.h @@ -589,8 +589,8 @@ user_rtt_fill_64bit: \ restored; \ nop; nop; nop; nop; nop; nop; \ nop; nop; nop; nop; nop; \ - ba,a,pt %xcc, user_rtt_fill_fixup; \ - ba,a,pt %xcc, user_rtt_fill_fixup; \ + ba,a,pt %xcc, user_rtt_fill_fixup_dax; \ + ba,a,pt %xcc, user_rtt_fill_fixup_mna; \ ba,a,pt %xcc, user_rtt_fill_fixup; @@ -652,8 +652,8 @@ user_rtt_fill_32bit: \ restored; \ nop; nop; nop; nop; nop; \ nop; nop; nop; \ - ba,a,pt %xcc, user_rtt_fill_fixup; \ - ba,a,pt %xcc, user_rtt_fill_fixup; \ + ba,a,pt %xcc, user_rtt_fill_fixup_dax; \ + ba,a,pt %xcc, user_rtt_fill_fixup_mna; \ ba,a,pt %xcc, user_rtt_fill_fixup; diff --git a/kernel/arch/sparc/include/asm/uaccess_32.h b/kernel/arch/sparc/include/asm/uaccess_32.h index 64ee103dc..dfb542c7c 100644 --- a/kernel/arch/sparc/include/asm/uaccess_32.h +++ b/kernel/arch/sparc/include/asm/uaccess_32.h @@ -328,8 +328,10 @@ static inline unsigned long copy_from_user(void *to, const void __user *from, un { if (n && __access_ok((unsigned long) from, n)) return __copy_user((__force void __user *) to, from, n); - else + else { + memset(to, 0, n); return n; + } } static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n) diff --git a/kernel/arch/sparc/include/asm/uaccess_64.h b/kernel/arch/sparc/include/asm/uaccess_64.h index ea6e9a20f..f42851248 100644 --- a/kernel/arch/sparc/include/asm/uaccess_64.h +++ b/kernel/arch/sparc/include/asm/uaccess_64.h @@ -98,7 +98,6 @@ struct exception_table_entry { unsigned int insn, fixup; }; -void __ret_efault(void); void __retl_efault(void); /* Uh, these should become the main single-value transfer routines.. @@ -179,20 +178,6 @@ int __put_user_bad(void); __gu_ret; \ }) -#define __get_user_nocheck_ret(data, addr, size, type, retval) ({ \ - register unsigned long __gu_val __asm__ ("l1"); \ - switch (size) { \ - case 1: __get_user_asm_ret(__gu_val, ub, addr, retval); break; \ - case 2: __get_user_asm_ret(__gu_val, uh, addr, retval); break; \ - case 4: __get_user_asm_ret(__gu_val, uw, addr, retval); break; \ - case 8: __get_user_asm_ret(__gu_val, x, addr, retval); break; \ - default: \ - if (__get_user_bad()) \ - return retval; \ - } \ - data = (__force type) __gu_val; \ -}) - #define __get_user_asm(x, size, addr, ret) \ __asm__ __volatile__( \ "/* Get user asm, inline. */\n" \ @@ -214,80 +199,35 @@ __asm__ __volatile__( \ : "=r" (ret), "=r" (x) : "r" (__m(addr)), \ "i" (-EFAULT)) -#define __get_user_asm_ret(x, size, addr, retval) \ -if (__builtin_constant_p(retval) && retval == -EFAULT) \ - __asm__ __volatile__( \ - "/* Get user asm ret, inline. */\n" \ - "1:\t" "ld"#size "a [%1] %%asi, %0\n\n\t" \ - ".section __ex_table,\"a\"\n\t" \ - ".align 4\n\t" \ - ".word 1b,__ret_efault\n\n\t" \ - ".previous\n\t" \ - : "=r" (x) : "r" (__m(addr))); \ -else \ - __asm__ __volatile__( \ - "/* Get user asm ret, inline. */\n" \ - "1:\t" "ld"#size "a [%1] %%asi, %0\n\n\t" \ - ".section .fixup,#alloc,#execinstr\n\t" \ - ".align 4\n" \ - "3:\n\t" \ - "ret\n\t" \ - " restore %%g0, %2, %%o0\n\n\t" \ - ".previous\n\t" \ - ".section __ex_table,\"a\"\n\t" \ - ".align 4\n\t" \ - ".word 1b, 3b\n\n\t" \ - ".previous\n\t" \ - : "=r" (x) : "r" (__m(addr)), "i" (retval)) - int __get_user_bad(void); unsigned long __must_check ___copy_from_user(void *to, const void __user *from, unsigned long size); -unsigned long copy_from_user_fixup(void *to, const void __user *from, - unsigned long size); static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long size) { - unsigned long ret = ___copy_from_user(to, from, size); - - if (unlikely(ret)) - ret = copy_from_user_fixup(to, from, size); - - return ret; + return ___copy_from_user(to, from, size); } #define __copy_from_user copy_from_user unsigned long __must_check ___copy_to_user(void __user *to, const void *from, unsigned long size); -unsigned long copy_to_user_fixup(void __user *to, const void *from, - unsigned long size); static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long size) { - unsigned long ret = ___copy_to_user(to, from, size); - - if (unlikely(ret)) - ret = copy_to_user_fixup(to, from, size); - return ret; + return ___copy_to_user(to, from, size); } #define __copy_to_user copy_to_user unsigned long __must_check ___copy_in_user(void __user *to, const void __user *from, unsigned long size); -unsigned long copy_in_user_fixup(void __user *to, void __user *from, - unsigned long size); static inline unsigned long __must_check copy_in_user(void __user *to, void __user *from, unsigned long size) { - unsigned long ret = ___copy_in_user(to, from, size); - - if (unlikely(ret)) - ret = copy_in_user_fixup(to, from, size); - return ret; + return ___copy_in_user(to, from, size); } #define __copy_in_user copy_in_user |