diff options
Diffstat (limited to 'arch/hexagon')
| -rw-r--r-- | arch/hexagon/include/asm/pgalloc.h | 34 | ||||
| -rw-r--r-- | arch/hexagon/include/asm/syscall.h | 14 | ||||
| -rw-r--r-- | arch/hexagon/kernel/signal.c | 2 | ||||
| -rw-r--r-- | arch/hexagon/kernel/traps.c | 12 | ||||
| -rw-r--r-- | arch/hexagon/mm/vm_fault.c | 4 |
5 files changed, 25 insertions, 41 deletions
diff --git a/arch/hexagon/include/asm/pgalloc.h b/arch/hexagon/include/asm/pgalloc.h index 3c9e1bd9a3e9..d6544dc71258 100644 --- a/arch/hexagon/include/asm/pgalloc.h +++ b/arch/hexagon/include/asm/pgalloc.h @@ -11,6 +11,8 @@ #include <asm/mem-layout.h> #include <asm/atomic.h> +#include <asm-generic/pgalloc.h> /* for pte_{alloc,free}_one */ + #define check_pgt_cache() do {} while (0) extern unsigned long long kmap_generation; @@ -46,38 +48,6 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) free_page((unsigned long) pgd); } -static inline struct page *pte_alloc_one(struct mm_struct *mm) -{ - struct page *pte; - - pte = alloc_page(GFP_KERNEL | __GFP_ZERO); - if (!pte) - return NULL; - if (!pgtable_page_ctor(pte)) { - __free_page(pte); - return NULL; - } - return pte; -} - -/* _kernel variant gets to use a different allocator */ -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) -{ - gfp_t flags = GFP_KERNEL | __GFP_ZERO; - return (pte_t *) __get_free_page(flags); -} - -static inline void pte_free(struct mm_struct *mm, struct page *pte) -{ - pgtable_page_dtor(pte); - __free_page(pte); -} - -static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) -{ - free_page((unsigned long)pte); -} - static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t pte) { diff --git a/arch/hexagon/include/asm/syscall.h b/arch/hexagon/include/asm/syscall.h index 4f054b1ddef5..f6e454f18038 100644 --- a/arch/hexagon/include/asm/syscall.h +++ b/arch/hexagon/include/asm/syscall.h @@ -9,6 +9,8 @@ #define _ASM_HEXAGON_SYSCALL_H #include <uapi/linux/audit.h> +#include <linux/err.h> +#include <asm/ptrace.h> typedef long (*syscall_fn)(unsigned long, unsigned long, unsigned long, unsigned long, @@ -31,6 +33,18 @@ static inline void syscall_get_arguments(struct task_struct *task, memcpy(args, &(®s->r00)[0], 6 * sizeof(args[0])); } +static inline long syscall_get_error(struct task_struct *task, + struct pt_regs *regs) +{ + return IS_ERR_VALUE(regs->r00) ? regs->r00 : 0; +} + +static inline long syscall_get_return_value(struct task_struct *task, + struct pt_regs *regs) +{ + return regs->r00; +} + static inline int syscall_get_arch(struct task_struct *task) { return AUDIT_ARCH_HEXAGON; diff --git a/arch/hexagon/kernel/signal.c b/arch/hexagon/kernel/signal.c index 5bc36db26475..d48864c48e5a 100644 --- a/arch/hexagon/kernel/signal.c +++ b/arch/hexagon/kernel/signal.c @@ -252,6 +252,6 @@ asmlinkage int sys_rt_sigreturn(void) return regs->r00; badframe: - force_sig(SIGSEGV, current); + force_sig(SIGSEGV); return 0; } diff --git a/arch/hexagon/kernel/traps.c b/arch/hexagon/kernel/traps.c index a01da26dbfe1..69c623b14ddd 100644 --- a/arch/hexagon/kernel/traps.c +++ b/arch/hexagon/kernel/traps.c @@ -239,7 +239,7 @@ int die_if_kernel(char *str, struct pt_regs *regs, long err) static void misaligned_instruction(struct pt_regs *regs) { die_if_kernel("Misaligned Instruction", regs, 0); - force_sig(SIGBUS, current); + force_sig(SIGBUS); } /* @@ -250,19 +250,19 @@ static void misaligned_instruction(struct pt_regs *regs) static void misaligned_data_load(struct pt_regs *regs) { die_if_kernel("Misaligned Data Load", regs, 0); - force_sig(SIGBUS, current); + force_sig(SIGBUS); } static void misaligned_data_store(struct pt_regs *regs) { die_if_kernel("Misaligned Data Store", regs, 0); - force_sig(SIGBUS, current); + force_sig(SIGBUS); } static void illegal_instruction(struct pt_regs *regs) { die_if_kernel("Illegal Instruction", regs, 0); - force_sig(SIGILL, current); + force_sig(SIGILL); } /* @@ -272,7 +272,7 @@ static void illegal_instruction(struct pt_regs *regs) static void precise_bus_error(struct pt_regs *regs) { die_if_kernel("Precise Bus Error", regs, 0); - force_sig(SIGBUS, current); + force_sig(SIGBUS); } /* @@ -407,7 +407,7 @@ void do_trap0(struct pt_regs *regs) * may want to use a different trap0 flavor. */ force_sig_fault(SIGTRAP, TRAP_BRKPT, - (void __user *) pt_elr(regs), current); + (void __user *) pt_elr(regs)); } else { #ifdef CONFIG_KGDB kgdb_handle_exception(pt_cause(regs), SIGTRAP, diff --git a/arch/hexagon/mm/vm_fault.c b/arch/hexagon/mm/vm_fault.c index b7a99aa5b0ba..b3bc71680ae4 100644 --- a/arch/hexagon/mm/vm_fault.c +++ b/arch/hexagon/mm/vm_fault.c @@ -135,14 +135,14 @@ good_area: si_signo = SIGSEGV; si_code = SEGV_ACCERR; } - force_sig_fault(si_signo, si_code, (void __user *)address, current); + force_sig_fault(si_signo, si_code, (void __user *)address); return; bad_area: up_read(&mm->mmap_sem); if (user_mode(regs)) { - force_sig_fault(SIGSEGV, si_code, (void __user *)address, current); + force_sig_fault(SIGSEGV, si_code, (void __user *)address); return; } /* Kernel-mode fault falls through */ |