diff options
Diffstat (limited to 'arch/tile')
| -rw-r--r-- | arch/tile/Kconfig | 8 | ||||
| -rw-r--r-- | arch/tile/include/asm/compat.h | 11 | ||||
| -rw-r--r-- | arch/tile/include/asm/syscalls.h | 2 | ||||
| -rw-r--r-- | arch/tile/include/asm/unistd.h | 1 | ||||
| -rw-r--r-- | arch/tile/kernel/compat.c | 42 | ||||
| -rw-r--r-- | arch/tile/kernel/compat_signal.c | 112 | ||||
| -rw-r--r-- | arch/tile/kernel/signal.c | 15 | ||||
| -rw-r--r-- | arch/tile/kvm/Kconfig | 2 | ||||
| -rw-r--r-- | arch/tile/mm/elf.c | 1 | ||||
| -rw-r--r-- | arch/tile/mm/init.c | 8 | ||||
| -rw-r--r-- | arch/tile/mm/pgtable.c | 2 |
11 files changed, 48 insertions, 156 deletions
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 1bb7ad4..25877ae 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -17,6 +17,7 @@ config TILE select GENERIC_IRQ_SHOW select HAVE_DEBUG_BUGVERBOSE select HAVE_SYSCALL_WRAPPERS if TILEGX + select VIRT_TO_BUS select SYS_HYPERVISOR select ARCH_HAVE_NMI_SAFE_CMPXCHG select GENERIC_CLOCKEVENTS @@ -121,6 +122,7 @@ config DEBUG_COPY_FROM_USER def_bool n config HVC_TILE + depends on TTY select HVC_DRIVER def_bool y @@ -412,12 +414,6 @@ config TILE_USB Provides USB host adapter support for the built-in EHCI and OHCI interfaces on TILE-Gx chips. -# USB OHCI needs the bounce pool since tilegx will often have more -# than 4GB of memory, but we don't currently use the IOTLB to present -# a 32-bit address to OHCI. So we need to use a bounce pool instead. -config NEED_BOUNCE_POOL - def_bool USB_OHCI_HCD - source "drivers/pci/hotplug/Kconfig" endmenu diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h index 88f3c22..78f1f2d 100644 --- a/arch/tile/include/asm/compat.h +++ b/arch/tile/include/asm/compat.h @@ -272,17 +272,9 @@ extern int compat_setup_rt_frame(int sig, struct k_sigaction *ka, struct pt_regs *regs); /* Compat syscalls. */ -struct compat_sigaction; struct compat_siginfo; struct compat_sigaltstack; -long compat_sys_rt_sigaction(int sig, struct compat_sigaction __user *act, - struct compat_sigaction __user *oact, - size_t sigsetsize); -long compat_sys_rt_sigqueueinfo(int pid, int sig, - struct compat_siginfo __user *uinfo); long compat_sys_rt_sigreturn(void); -long compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr, - struct compat_sigaltstack __user *uoss_ptr); long compat_sys_truncate64(char __user *filename, u32 dummy, u32 low, u32 high); long compat_sys_ftruncate64(unsigned int fd, u32 dummy, u32 low, u32 high); long compat_sys_pread64(unsigned int fd, char __user *ubuf, size_t count, @@ -296,6 +288,9 @@ long compat_sys_sync_file_range2(int fd, unsigned int flags, long compat_sys_fallocate(int fd, int mode, u32 offset_lo, u32 offset_hi, u32 len_lo, u32 len_hi); +long compat_sys_llseek(unsigned int fd, unsigned int offset_high, + unsigned int offset_low, loff_t __user * result, + unsigned int origin); /* Assembly trampoline to avoid clobbering r0. */ long _compat_sys_rt_sigreturn(void); diff --git a/arch/tile/include/asm/syscalls.h b/arch/tile/include/asm/syscalls.h index 4c8462a..78886e2 100644 --- a/arch/tile/include/asm/syscalls.h +++ b/arch/tile/include/asm/syscalls.h @@ -64,9 +64,7 @@ long sys_ftruncate64(unsigned int fd, loff_t length); /* Provide versions of standard syscalls that use current_pt_regs(). */ long sys_rt_sigreturn(void); -long sys_sigaltstack(const stack_t __user *, stack_t __user *); #define sys_rt_sigreturn sys_rt_sigreturn -#define sys_sigaltstack sys_sigaltstack /* These are the intvec*.S trampolines. */ long _sys_rt_sigreturn(void); diff --git a/arch/tile/include/asm/unistd.h b/arch/tile/include/asm/unistd.h index 6ac2103..940831f 100644 --- a/arch/tile/include/asm/unistd.h +++ b/arch/tile/include/asm/unistd.h @@ -14,7 +14,6 @@ /* In compat mode, we use sys_llseek() for compat_sys_llseek(). */ #ifdef CONFIG_COMPAT #define __ARCH_WANT_SYS_LLSEEK -#define __ARCH_WANT_COMPAT_SYS_SCHED_RR_GET_INTERVAL #endif #define __ARCH_WANT_SYS_NEWFSTATAT #define __ARCH_WANT_SYS_CLONE diff --git a/arch/tile/kernel/compat.c b/arch/tile/kernel/compat.c index 7f72401..6ea4cdb 100644 --- a/arch/tile/kernel/compat.c +++ b/arch/tile/kernel/compat.c @@ -32,50 +32,65 @@ * adapt the usual convention. */ -long compat_sys_truncate64(char __user *filename, u32 dummy, u32 low, u32 high) +COMPAT_SYSCALL_DEFINE4(truncate64, char __user *, filename, u32, dummy, + u32, low, u32, high) { return sys_truncate(filename, ((loff_t)high << 32) | low); } -long compat_sys_ftruncate64(unsigned int fd, u32 dummy, u32 low, u32 high) +COMPAT_SYSCALL_DEFINE4(ftruncate64, unsigned int, fd, u32, dummy, + u32, low, u32, high) { return sys_ftruncate(fd, ((loff_t)high << 32) | low); } -long compat_sys_pread64(unsigned int fd, char __user *ubuf, size_t count, - u32 dummy, u32 low, u32 high) +COMPAT_SYSCALL_DEFINE6(pread64, unsigned int, fd, char __user *, ubuf, + size_t, count, u32, dummy, u32, low, u32, high) { return sys_pread64(fd, ubuf, count, ((loff_t)high << 32) | low); } -long compat_sys_pwrite64(unsigned int fd, char __user *ubuf, size_t count, - u32 dummy, u32 low, u32 high) +COMPAT_SYSCALL_DEFINE6(pwrite64, unsigned int, fd, char __user *, ubuf, + size_t, count, u32, dummy, u32, low, u32, high) { return sys_pwrite64(fd, ubuf, count, ((loff_t)high << 32) | low); } -long compat_sys_lookup_dcookie(u32 low, u32 high, char __user *buf, size_t len) +COMPAT_SYSCALL_DEFINE4(lookup_dcookie, u32, low, u32, high, + char __user *, buf, size_t, len) { return sys_lookup_dcookie(((loff_t)high << 32) | low, buf, len); } -long compat_sys_sync_file_range2(int fd, unsigned int flags, - u32 offset_lo, u32 offset_hi, - u32 nbytes_lo, u32 nbytes_hi) +COMPAT_SYSCALL_DEFINE6(sync_file_range2, int, fd, unsigned int, flags, + u32, offset_lo, u32, offset_hi, + u32, nbytes_lo, u32, nbytes_hi) { return sys_sync_file_range(fd, ((loff_t)offset_hi << 32) | offset_lo, ((loff_t)nbytes_hi << 32) | nbytes_lo, flags); } -long compat_sys_fallocate(int fd, int mode, - u32 offset_lo, u32 offset_hi, - u32 len_lo, u32 len_hi) +COMPAT_SYSCALL_DEFINE6(fallocate, int, fd, int, mode, + u32, offset_lo, u32, offset_hi, + u32, len_lo, u32, len_hi) { return sys_fallocate(fd, mode, ((loff_t)offset_hi << 32) | offset_lo, ((loff_t)len_hi << 32) | len_lo); } +/* + * Avoid bug in generic sys_llseek() that specifies offset_high and + * offset_low as "unsigned long", thus making it possible to pass + * a sign-extended high 32 bits in offset_low. + */ +COMPAT_SYSCALL_DEFINE5(llseek, unsigned int, fd, unsigned int, offset_high, + unsigned int, offset_low, loff_t __user *, result, + unsigned int, origin) +{ + return sys_llseek(fd, offset_high, offset_low, result, origin); +} + /* Provide the compat syscall number to call mapping. */ #undef __SYSCALL #define __SYSCALL(nr, call) [nr] = (call), @@ -83,6 +98,7 @@ long compat_sys_fallocate(int fd, int mode, /* See comments in sys.c */ #define compat_sys_fadvise64_64 sys32_fadvise64_64 #define compat_sys_readahead sys32_readahead +#define sys_llseek compat_sys_llseek /* Call the assembly trampolines where necessary. */ #define compat_sys_rt_sigreturn _compat_sys_rt_sigreturn diff --git a/arch/tile/kernel/compat_signal.c b/arch/tile/kernel/compat_signal.c index 2e4cc69..d0a052e 100644 --- a/arch/tile/kernel/compat_signal.c +++ b/arch/tile/kernel/compat_signal.c @@ -34,19 +34,6 @@ #include <asm/syscalls.h> #include <arch/interrupts.h> -struct compat_sigaction { - compat_uptr_t sa_handler; - compat_ulong_t sa_flags; - compat_uptr_t sa_restorer; - sigset_t sa_mask __packed; -}; - -struct compat_sigaltstack { - compat_uptr_t ss_sp; - int ss_flags; - compat_size_t ss_size; -}; - struct compat_ucontext { compat_ulong_t uc_flags; compat_uptr_t uc_link; @@ -61,63 +48,6 @@ struct compat_rt_sigframe { struct compat_ucontext uc; }; -long compat_sys_rt_sigaction(int sig, struct compat_sigaction __user *act, - struct compat_sigaction __user *oact, - size_t sigsetsize) -{ - struct k_sigaction new_sa, old_sa; - int ret = -EINVAL; - - /* XXX: Don't preclude handling different sized sigset_t's. */ - if (sigsetsize != sizeof(sigset_t)) - goto out; - - if (act) { - compat_uptr_t handler, restorer; - - if (!access_ok(VERIFY_READ, act, sizeof(*act)) || - __get_user(handler, &act->sa_handler) || - __get_user(new_sa.sa.sa_flags, &act->sa_flags) || - __get_user(restorer, &act->sa_restorer) || - __copy_from_user(&new_sa.sa.sa_mask, &act->sa_mask, - sizeof(sigset_t))) - return -EFAULT; - new_sa.sa.sa_handler = compat_ptr(handler); - new_sa.sa.sa_restorer = compat_ptr(restorer); - } - - ret = do_sigaction(sig, act ? &new_sa : NULL, oact ? &old_sa : NULL); - - if (!ret && oact) { - if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) || - __put_user(ptr_to_compat(old_sa.sa.sa_handler), - &oact->sa_handler) || - __put_user(ptr_to_compat(old_sa.sa.sa_restorer), - &oact->sa_restorer) || - __put_user(old_sa.sa.sa_flags, &oact->sa_flags) || - __copy_to_user(&oact->sa_mask, &old_sa.sa.sa_mask, - sizeof(sigset_t))) - return -EFAULT; - } -out: - return ret; -} - -long compat_sys_rt_sigqueueinfo(int pid, int sig, - struct compat_siginfo __user *uinfo) -{ - siginfo_t info; - int ret; - mm_segment_t old_fs = get_fs(); - - if (copy_siginfo_from_user32(&info, uinfo)) - return -EFAULT; - set_fs(KERNEL_DS); - ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __force __user *)&info); - set_fs(old_fs); - return ret; -} - int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from) { int err; @@ -196,40 +126,6 @@ int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from) return err; } -long compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr, - struct compat_sigaltstack __user *uoss_ptr) -{ - stack_t uss, uoss; - int ret; - mm_segment_t seg; - - if (uss_ptr) { - u32 ptr; - - memset(&uss, 0, sizeof(stack_t)); - if (!access_ok(VERIFY_READ, uss_ptr, sizeof(*uss_ptr)) || - __get_user(ptr, &uss_ptr->ss_sp) || - __get_user(uss.ss_flags, &uss_ptr->ss_flags) || - __get_user(uss.ss_size, &uss_ptr->ss_size)) - return -EFAULT; - uss.ss_sp = compat_ptr(ptr); - } - seg = get_fs(); - set_fs(KERNEL_DS); - ret = do_sigaltstack(uss_ptr ? (stack_t __user __force *)&uss : NULL, - (stack_t __user __force *)&uoss, - (unsigned long)compat_ptr(current_pt_regs()->sp)); - set_fs(seg); - if (ret >= 0 && uoss_ptr) { - if (!access_ok(VERIFY_WRITE, uoss_ptr, sizeof(*uoss_ptr)) || - __put_user(ptr_to_compat(uoss.ss_sp), &uoss_ptr->ss_sp) || - __put_user(uoss.ss_flags, &uoss_ptr->ss_flags) || - __put_user(uoss.ss_size, &uoss_ptr->ss_size)) - ret = -EFAULT; - } - return ret; -} - /* The assembly shim for this function arranges to ignore the return value. */ long compat_sys_rt_sigreturn(void) { @@ -248,7 +144,7 @@ long compat_sys_rt_sigreturn(void) if (restore_sigcontext(regs, &frame->uc.uc_mcontext)) goto badframe; - if (compat_sys_sigaltstack(&frame->uc.uc_stack, NULL) == -EFAULT) + if (compat_restore_altstack(&frame->uc.uc_stack)) goto badframe; return 0; @@ -325,11 +221,7 @@ int compat_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, err |= __clear_user(&frame->save_area, sizeof(frame->save_area)); err |= __put_user(0, &frame->uc.uc_flags); err |= __put_user(0, &frame->uc.uc_link); - err |= __put_user(ptr_to_compat((void *)(current->sas_ss_sp)), - &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(regs->sp), - &frame->uc.uc_stack.ss_flags); - err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); + err |= __compat_save_altstack(&frame->uc.uc_stack, regs->sp); err |= setup_sigcontext(&frame->uc.uc_mcontext, regs); err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); if (err) diff --git a/arch/tile/kernel/signal.c b/arch/tile/kernel/signal.c index 657a7ac..9531845b 100644 --- a/arch/tile/kernel/signal.c +++ b/arch/tile/kernel/signal.c @@ -37,13 +37,6 @@ #define DEBUG_SIG 0 -SYSCALL_DEFINE2(sigaltstack, const stack_t __user *, uss, - stack_t __user *, uoss) -{ - return do_sigaltstack(uss, uoss, current_pt_regs()->sp); -} - - /* * Do a signal return; undo the signal stack. */ @@ -100,7 +93,7 @@ SYSCALL_DEFINE0(rt_sigreturn) if (restore_sigcontext(regs, &frame->uc.uc_mcontext)) goto badframe; - if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT) + if (restore_altstack(&frame->uc.uc_stack)) goto badframe; return 0; @@ -191,11 +184,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, err |= __clear_user(&frame->save_area, sizeof(frame->save_area)); err |= __put_user(0, &frame->uc.uc_flags); err |= __put_user(NULL, &frame->uc.uc_link); - err |= __put_user((void __user *)(current->sas_ss_sp), - &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(regs->sp), - &frame->uc.uc_stack.ss_flags); - err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); + err |= __save_altstack(&frame->uc.uc_stack, regs->sp); err |= setup_sigcontext(&frame->uc.uc_mcontext, regs); err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); if (err) diff --git a/arch/tile/kvm/Kconfig b/arch/tile/kvm/Kconfig index 669fcdb..2298cb1 100644 --- a/arch/tile/kvm/Kconfig +++ b/arch/tile/kvm/Kconfig @@ -18,7 +18,7 @@ if VIRTUALIZATION config KVM tristate "Kernel-based Virtual Machine (KVM) support" - depends on HAVE_KVM && MODULES && EXPERIMENTAL + depends on HAVE_KVM && MODULES select PREEMPT_NOTIFIERS select ANON_INODES ---help--- diff --git a/arch/tile/mm/elf.c b/arch/tile/mm/elf.c index 3cfa98b..743c951 100644 --- a/arch/tile/mm/elf.c +++ b/arch/tile/mm/elf.c @@ -130,7 +130,6 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, if (!retval) { unsigned long addr = MEM_USER_INTRPT; addr = mmap_region(NULL, addr, INTRPT_SIZE, - MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE, VM_READ|VM_EXEC| VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC, 0); if (addr > (unsigned long) -PAGE_SIZE) diff --git a/arch/tile/mm/init.c b/arch/tile/mm/init.c index ef29d6c..2749515 100644 --- a/arch/tile/mm/init.c +++ b/arch/tile/mm/init.c @@ -935,6 +935,14 @@ int remove_memory(u64 start, u64 size) { return -EINVAL; } + +#ifdef CONFIG_MEMORY_HOTREMOVE +int arch_remove_memory(u64 start, u64 size) +{ + /* TODO */ + return -EBUSY; +} +#endif #endif struct kmem_cache *pgd_cache; diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c index de0de0c..b3b4972 100644 --- a/arch/tile/mm/pgtable.c +++ b/arch/tile/mm/pgtable.c @@ -61,7 +61,7 @@ void show_mem(unsigned int filter) global_page_state(NR_PAGETABLE), global_page_state(NR_BOUNCE), global_page_state(NR_FILE_PAGES), - nr_swap_pages); + get_nr_swap_pages()); for_each_zone(zone) { unsigned long flags, order, total = 0, largest_order = -1; |