diff options
Diffstat (limited to 'arch/parisc/kernel')
| -rw-r--r-- | arch/parisc/kernel/entry.S | 20 | ||||
| -rw-r--r-- | arch/parisc/kernel/module.c | 8 | ||||
| -rw-r--r-- | arch/parisc/kernel/process.c | 15 | ||||
| -rw-r--r-- | arch/parisc/kernel/signal.c | 34 | ||||
| -rw-r--r-- | arch/parisc/kernel/smp.c | 3 | ||||
| -rw-r--r-- | arch/parisc/kernel/syscall_table.S | 1 |
6 files changed, 23 insertions, 58 deletions
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S index e8f07dd28401..2ab16bb160a8 100644 --- a/arch/parisc/kernel/entry.S +++ b/arch/parisc/kernel/entry.S @@ -1774,10 +1774,6 @@ ENTRY(sys_rt_sigreturn_wrapper) ENDPROC(sys_rt_sigreturn_wrapper) ENTRY(syscall_exit) - /* NOTE: HP-UX syscalls also come through here - * after hpux_syscall_exit fixes up return - * values. */ - /* NOTE: Not all syscalls exit this way. rt_sigreturn will exit * via syscall_exit_rfi if the signal was received while the process * was running. @@ -1789,22 +1785,6 @@ ENTRY(syscall_exit) LDREG TI_TASK(%r1),%r1 STREG %r28,TASK_PT_GR28(%r1) -#ifdef CONFIG_HPUX -/* <linux/personality.h> cannot be easily included */ -#define PER_HPUX 0x10 - ldw TASK_PERSONALITY(%r1),%r19 - - /* We can't use "CMPIB<> PER_HPUX" since "im5" field is sign extended */ - ldo -PER_HPUX(%r19), %r19 - cmpib,COND(<>),n 0,%r19,1f - - /* Save other hpux returns if personality is PER_HPUX */ - STREG %r22,TASK_PT_GR22(%r1) - STREG %r29,TASK_PT_GR29(%r1) -1: - -#endif /* CONFIG_HPUX */ - /* Seems to me that dp could be wrong here, if the syscall involved * calling a module, and nothing got round to restoring dp on return. */ diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c index 50dfafc3f2c1..3c63a820fcda 100644 --- a/arch/parisc/kernel/module.c +++ b/arch/parisc/kernel/module.c @@ -219,7 +219,7 @@ void *module_alloc(unsigned long size) * init_data correctly */ return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END, GFP_KERNEL | __GFP_HIGHMEM, - PAGE_KERNEL_RWX, NUMA_NO_NODE, + PAGE_KERNEL_RWX, 0, NUMA_NO_NODE, __builtin_return_address(0)); } @@ -298,14 +298,10 @@ static inline unsigned long count_stubs(const Elf_Rela *rela, unsigned long n) } #endif - -/* Free memory returned from module_alloc */ -void module_free(struct module *mod, void *module_region) +void module_arch_freeing_init(struct module *mod) { kfree(mod->arch.section); mod->arch.section = NULL; - - vfree(module_region); } /* Additional bytes needed in front of individual sections */ diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index 0bbbf0d3f608..8a488c22a99f 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -193,9 +193,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp, * Make them const so the compiler knows they live in .text */ extern void * const ret_from_kernel_thread; extern void * const child_return; -#ifdef CONFIG_HPUX - extern void * const hpux_child_return; -#endif + if (unlikely(p->flags & PF_KTHREAD)) { memset(cregs, 0, sizeof(struct pt_regs)); if (!usp) /* idle thread */ @@ -229,15 +227,8 @@ copy_thread(unsigned long clone_flags, unsigned long usp, cregs->gr[30] = usp; } cregs->ksp = (unsigned long)stack + THREAD_SZ_ALGN + FRAME_SIZE; - if (personality(p->personality) == PER_HPUX) { -#ifdef CONFIG_HPUX - cregs->kpc = (unsigned long) &hpux_child_return; -#else - BUG(); -#endif - } else { - cregs->kpc = (unsigned long) &child_return; - } + cregs->kpc = (unsigned long) &child_return; + /* Setup thread TLS area from the 4th parameter in clone */ if (clone_flags & CLONE_SETTLS) cregs->cr27 = cregs->gr[23]; diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c index 012d4fa63d97..dc1ea796fd60 100644 --- a/arch/parisc/kernel/signal.c +++ b/arch/parisc/kernel/signal.c @@ -9,8 +9,7 @@ * * Like the IA-64, we are a recent enough port (we are *starting* * with glibc2.2) that we do not need to support the old non-realtime - * Linux signals. Therefore we don't. HP/UX signals will go in - * arch/parisc/hpux/signal.c when we figure out how to do them. + * Linux signals. Therefore we don't. */ #include <linux/sched.h> @@ -99,7 +98,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall) sigframe_size = PARISC_RT_SIGFRAME_SIZE32; #endif - current_thread_info()->restart_block.fn = do_no_restart_syscall; + current->restart_block.fn = do_no_restart_syscall; /* Unwind the user stack to get the rt_sigframe structure. */ frame = (struct rt_sigframe __user *) @@ -476,6 +475,9 @@ insert_restart_trampoline(struct pt_regs *regs) case -ERESTART_RESTARTBLOCK: { /* Restart the system call - no handlers present */ unsigned int *usp = (unsigned int *)regs->gr[30]; + unsigned long start = (unsigned long) &usp[2]; + unsigned long end = (unsigned long) &usp[5]; + long err = 0; /* Setup a trampoline to restart the syscall * with __NR_restart_syscall @@ -487,23 +489,21 @@ insert_restart_trampoline(struct pt_regs *regs) * 16: ldi __NR_restart_syscall, %r20 */ #ifdef CONFIG_64BIT - put_user(regs->gr[31] >> 32, &usp[0]); - put_user(regs->gr[31] & 0xffffffff, &usp[1]); - put_user(0x0fc010df, &usp[2]); + err |= put_user(regs->gr[31] >> 32, &usp[0]); + err |= put_user(regs->gr[31] & 0xffffffff, &usp[1]); + err |= put_user(0x0fc010df, &usp[2]); #else - put_user(regs->gr[31], &usp[0]); - put_user(0x0fc0109f, &usp[2]); + err |= put_user(regs->gr[31], &usp[0]); + err |= put_user(0x0fc0109f, &usp[2]); #endif - put_user(0xe0008200, &usp[3]); - put_user(0x34140000, &usp[4]); + err |= put_user(0xe0008200, &usp[3]); + err |= put_user(0x34140000, &usp[4]); - /* Stack is 64-byte aligned, and we only need - * to flush 1 cache line. - * Flushing one cacheline is cheap. - * "sync" on bigger (> 4 way) boxes is not. - */ - flush_user_dcache_range(regs->gr[30], regs->gr[30] + 4); - flush_user_icache_range(regs->gr[30], regs->gr[30] + 4); + WARN_ON(err); + + /* flush data/instruction cache for new insns */ + flush_user_dcache_range(start, end); + flush_user_icache_range(start, end); regs->gr[31] = regs->gr[30] + 8; return; diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c index ceda229ea6c2..52e85973a283 100644 --- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c @@ -230,9 +230,6 @@ send_IPI_allbutself(enum ipi_message_type op) inline void smp_send_stop(void) { send_IPI_allbutself(IPI_CPU_STOP); } -static inline void -smp_send_start(void) { send_IPI_allbutself(IPI_CPU_START); } - void smp_send_reschedule(int cpu) { send_IPI_single(cpu, IPI_RESCHEDULE); } diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S index fe4f0b89bf8f..5a8997d63899 100644 --- a/arch/parisc/kernel/syscall_table.S +++ b/arch/parisc/kernel/syscall_table.S @@ -437,6 +437,7 @@ ENTRY_SAME(getrandom) ENTRY_SAME(memfd_create) /* 340 */ ENTRY_SAME(bpf) + ENTRY_COMP(execveat) /* Nothing yet */ |