diff options
Diffstat (limited to 'arch/openrisc')
19 files changed, 141 insertions, 91 deletions
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig index 49765b5..05f2ba4 100644 --- a/arch/openrisc/Kconfig +++ b/arch/openrisc/Kconfig @@ -21,6 +21,7 @@ config OPENRISC select GENERIC_CLOCKEVENTS select GENERIC_STRNCPY_FROM_USER select GENERIC_STRNLEN_USER + select MODULES_USE_ELF_RELA config MMU def_bool y diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild index 0922959..78de680 100644 --- a/arch/openrisc/include/asm/Kbuild +++ b/arch/openrisc/include/asm/Kbuild @@ -1,6 +1,4 @@ -include include/asm-generic/Kbuild.asm -header-y += elf.h header-y += ucontext.h generic-y += atomic.h @@ -11,6 +9,7 @@ generic-y += bug.h generic-y += bugs.h generic-y += cacheflush.h generic-y += checksum.h +generic-y += clkdev.h generic-y += cmpxchg.h generic-y += cmpxchg-local.h generic-y += cputime.h diff --git a/arch/openrisc/include/asm/elf.h b/arch/openrisc/include/asm/elf.h index a8fe2c5..f4aa8a5 100644 --- a/arch/openrisc/include/asm/elf.h +++ b/arch/openrisc/include/asm/elf.h @@ -15,60 +15,12 @@ * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ - #ifndef __ASM_OPENRISC_ELF_H #define __ASM_OPENRISC_ELF_H -/* - * This files is partially exported to userspace. This allows us to keep - * the ELF bits in one place which should assist in keeping the kernel and - * userspace in sync. - */ - -/* - * ELF register definitions.. - */ - -/* for struct user_regs_struct definition */ -#include <asm/ptrace.h> - -/* The OR1K relocation types... not all relevant for module loader */ -#define R_OR32_NONE 0 -#define R_OR32_32 1 -#define R_OR32_16 2 -#define R_OR32_8 3 -#define R_OR32_CONST 4 -#define R_OR32_CONSTH 5 -#define R_OR32_JUMPTARG 6 -#define R_OR32_VTINHERIT 7 -#define R_OR32_VTENTRY 8 - -typedef unsigned long elf_greg_t; - -/* - * Note that NGREG is defined to ELF_NGREG in include/linux/elfcore.h, and is - * thus exposed to user-space. - */ -#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t)) -typedef elf_greg_t elf_gregset_t[ELF_NGREG]; - -/* A placeholder; OR32 does not have fp support yes, so no fp regs for now. */ -typedef unsigned long elf_fpregset_t; - -/* This should be moved to include/linux/elf.h */ -#define EM_OR32 0x8472 -#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ - -/* - * These are used to set parameters in the core dumps. - */ -#define ELF_ARCH EM_OR32 -#define ELF_CLASS ELFCLASS32 -#define ELF_DATA ELFDATA2MSB - -#ifdef __KERNEL__ #include <linux/types.h> +#include <uapi/asm/elf.h> /* * This is used to ensure we don't load something for the wrong architecture. @@ -110,7 +62,7 @@ extern void dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt); #define ELF_PLATFORM (NULL) -#define SET_PERSONALITY(ex) set_personality(PER_LINUX) +#define SET_PERSONALITY(ex) \ + set_personality(PER_LINUX | (current->personality & (~PER_MASK))) -#endif /* __KERNEL__ */ #endif diff --git a/arch/openrisc/include/asm/processor.h b/arch/openrisc/include/asm/processor.h index 30462f1..43decdb 100644 --- a/arch/openrisc/include/asm/processor.h +++ b/arch/openrisc/include/asm/processor.h @@ -103,7 +103,7 @@ extern unsigned long thread_saved_pc(struct task_struct *t); #define init_stack (init_thread_union.stack) -#define cpu_relax() do { } while (0) +#define cpu_relax() barrier() #endif /* __ASSEMBLY__ */ #endif /* __ASM_OPENRISC_PROCESSOR_H */ diff --git a/arch/openrisc/include/asm/ptrace.h b/arch/openrisc/include/asm/ptrace.h index 8555c0c..6ca1726 100644 --- a/arch/openrisc/include/asm/ptrace.h +++ b/arch/openrisc/include/asm/ptrace.h @@ -15,25 +15,12 @@ * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ - #ifndef __ASM_OPENRISC_PTRACE_H #define __ASM_OPENRISC_PTRACE_H -#ifndef __ASSEMBLY__ -/* - * This is the layout of the regset returned by the GETREGSET ptrace call - */ -struct user_regs_struct { - /* GPR R0-R31... */ - unsigned long gpr[32]; - unsigned long pc; - unsigned long sr; -}; -#endif - -#ifdef __KERNEL__ #include <asm/spr_defs.h> +#include <uapi/asm/ptrace.h> /* * Make kernel PTrace/register structures opaque to userspace... userspace can @@ -134,6 +121,4 @@ static inline long regs_return_value(struct pt_regs *regs) #define PT_ORIG_GPR11 132 #define PT_SYSCALLNO 136 -#endif /* __KERNEL__ */ - #endif /* __ASM_OPENRISC_PTRACE_H */ diff --git a/arch/openrisc/include/asm/thread_info.h b/arch/openrisc/include/asm/thread_info.h index 07a8bc0..07f3212 100644 --- a/arch/openrisc/include/asm/thread_info.h +++ b/arch/openrisc/include/asm/thread_info.h @@ -121,7 +121,6 @@ register struct thread_info *current_thread_info_reg asm("r10"); #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) #define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP) -#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK) #define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) @@ -129,6 +128,8 @@ register struct thread_info *current_thread_info_reg asm("r10"); /* For OpenRISC, this is anything in the LSW other than syscall trace */ #define _TIF_WORK_MASK (0xff & ~(_TIF_SYSCALL_TRACE|_TIF_SINGLESTEP)) +#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) + #endif /* __KERNEL__ */ #endif /* _ASM_THREAD_INFO_H */ diff --git a/arch/openrisc/include/uapi/asm/Kbuild b/arch/openrisc/include/uapi/asm/Kbuild new file mode 100644 index 0000000..80761eb --- /dev/null +++ b/arch/openrisc/include/uapi/asm/Kbuild @@ -0,0 +1,10 @@ +# UAPI Header export list +include include/uapi/asm-generic/Kbuild.asm + +header-y += byteorder.h +header-y += elf.h +header-y += kvm_para.h +header-y += param.h +header-y += ptrace.h +header-y += sigcontext.h +header-y += unistd.h diff --git a/arch/openrisc/include/asm/byteorder.h b/arch/openrisc/include/uapi/asm/byteorder.h index 60d14f7..60d14f7 100644 --- a/arch/openrisc/include/asm/byteorder.h +++ b/arch/openrisc/include/uapi/asm/byteorder.h diff --git a/arch/openrisc/include/uapi/asm/elf.h b/arch/openrisc/include/uapi/asm/elf.h new file mode 100644 index 0000000..f02ea58 --- /dev/null +++ b/arch/openrisc/include/uapi/asm/elf.h @@ -0,0 +1,69 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef _UAPI__ASM_OPENRISC_ELF_H +#define _UAPI__ASM_OPENRISC_ELF_H + +/* + * This files is partially exported to userspace. This allows us to keep + * the ELF bits in one place which should assist in keeping the kernel and + * userspace in sync. + */ + +/* + * ELF register definitions.. + */ + +/* for struct user_regs_struct definition */ +#include <asm/ptrace.h> + +/* The OR1K relocation types... not all relevant for module loader */ +#define R_OR32_NONE 0 +#define R_OR32_32 1 +#define R_OR32_16 2 +#define R_OR32_8 3 +#define R_OR32_CONST 4 +#define R_OR32_CONSTH 5 +#define R_OR32_JUMPTARG 6 +#define R_OR32_VTINHERIT 7 +#define R_OR32_VTENTRY 8 + +typedef unsigned long elf_greg_t; + +/* + * Note that NGREG is defined to ELF_NGREG in include/linux/elfcore.h, and is + * thus exposed to user-space. + */ +#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t)) +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +/* A placeholder; OR32 does not have fp support yes, so no fp regs for now. */ +typedef unsigned long elf_fpregset_t; + +/* This should be moved to include/linux/elf.h */ +#define EM_OR32 0x8472 +#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ + +/* + * These are used to set parameters in the core dumps. + */ +#define ELF_ARCH EM_OR32 +#define ELF_CLASS ELFCLASS32 +#define ELF_DATA ELFDATA2MSB + +#endif /* _UAPI__ASM_OPENRISC_ELF_H */ diff --git a/arch/openrisc/include/asm/kvm_para.h b/arch/openrisc/include/uapi/asm/kvm_para.h index 14fab8f..14fab8f 100644 --- a/arch/openrisc/include/asm/kvm_para.h +++ b/arch/openrisc/include/uapi/asm/kvm_para.h diff --git a/arch/openrisc/include/asm/param.h b/arch/openrisc/include/uapi/asm/param.h index c39a336..c39a336 100644 --- a/arch/openrisc/include/asm/param.h +++ b/arch/openrisc/include/uapi/asm/param.h diff --git a/arch/openrisc/include/uapi/asm/ptrace.h b/arch/openrisc/include/uapi/asm/ptrace.h new file mode 100644 index 0000000..9760bd1 --- /dev/null +++ b/arch/openrisc/include/uapi/asm/ptrace.h @@ -0,0 +1,35 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef _UAPI__ASM_OPENRISC_PTRACE_H +#define _UAPI__ASM_OPENRISC_PTRACE_H + +#ifndef __ASSEMBLY__ +/* + * This is the layout of the regset returned by the GETREGSET ptrace call + */ +struct user_regs_struct { + /* GPR R0-R31... */ + unsigned long gpr[32]; + unsigned long pc; + unsigned long sr; +}; +#endif + + +#endif /* _UAPI__ASM_OPENRISC_PTRACE_H */ diff --git a/arch/openrisc/include/asm/sigcontext.h b/arch/openrisc/include/uapi/asm/sigcontext.h index b79c2b1..b79c2b1 100644 --- a/arch/openrisc/include/asm/sigcontext.h +++ b/arch/openrisc/include/uapi/asm/sigcontext.h diff --git a/arch/openrisc/include/asm/unistd.h b/arch/openrisc/include/uapi/asm/unistd.h index 89af3ab..437bdbb 100644 --- a/arch/openrisc/include/asm/unistd.h +++ b/arch/openrisc/include/uapi/asm/unistd.h @@ -16,9 +16,6 @@ * (at your option) any later version. */ -#if !defined(__ASM_OPENRISC_UNISTD_H) || defined(__SYSCALL) -#define __ASM_OPENRISC_UNISTD_H - #define __ARCH_HAVE_MMU #define sys_mmap2 sys_mmap_pgoff @@ -27,5 +24,3 @@ #define __NR_or1k_atomic __NR_arch_specific_syscall __SYSCALL(__NR_or1k_atomic, sys_or1k_atomic) - -#endif /* __ASM_OPENRISC_UNISTD_H */ diff --git a/arch/openrisc/kernel/irq.c b/arch/openrisc/kernel/irq.c index e935b9d..8ec77bc 100644 --- a/arch/openrisc/kernel/irq.c +++ b/arch/openrisc/kernel/irq.c @@ -46,19 +46,19 @@ EXPORT_SYMBOL(arch_local_irq_restore); static void or1k_pic_mask(struct irq_data *data) { - mtspr(SPR_PICMR, mfspr(SPR_PICMR) & ~(1UL << data->irq)); + mtspr(SPR_PICMR, mfspr(SPR_PICMR) & ~(1UL << data->hwirq)); } static void or1k_pic_unmask(struct irq_data *data) { - mtspr(SPR_PICMR, mfspr(SPR_PICMR) | (1UL << data->irq)); + mtspr(SPR_PICMR, mfspr(SPR_PICMR) | (1UL << data->hwirq)); } static void or1k_pic_ack(struct irq_data *data) { /* EDGE-triggered interrupts need to be ack'ed in order to clear * the latch. - * LEVER-triggered interrupts do not need to be ack'ed; however, + * LEVEL-triggered interrupts do not need to be ack'ed; however, * ack'ing the interrupt has no ill-effect and is quicker than * trying to figure out what type it is... */ @@ -75,10 +75,10 @@ static void or1k_pic_ack(struct irq_data *data) * as opposed to a 1 as mandated by the spec */ - mtspr(SPR_PICSR, mfspr(SPR_PICSR) & ~(1UL << data->irq)); + mtspr(SPR_PICSR, mfspr(SPR_PICSR) & ~(1UL << data->hwirq)); #else - WARN(1, "Interrupt handling possibily broken\n"); - mtspr(SPR_PICSR, (1UL << irq)); + WARN(1, "Interrupt handling possibly broken\n"); + mtspr(SPR_PICSR, (1UL << data->hwirq)); #endif } @@ -87,10 +87,12 @@ static void or1k_pic_mask_ack(struct irq_data *data) /* Comments for pic_ack apply here, too */ #ifdef CONFIG_OR1K_1200 - mtspr(SPR_PICSR, mfspr(SPR_PICSR) & ~(1UL << data->irq)); + mtspr(SPR_PICMR, mfspr(SPR_PICMR) & ~(1UL << data->hwirq)); + mtspr(SPR_PICSR, mfspr(SPR_PICSR) & ~(1UL << data->hwirq)); #else - WARN(1, "Interrupt handling possibily broken\n"); - mtspr(SPR_PICSR, (1UL << irq)); + WARN(1, "Interrupt handling possibly broken\n"); + mtspr(SPR_PICMR, (1UL << data->hwirq)); + mtspr(SPR_PICSR, (1UL << data->hwirq)); #endif } diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c index 55210f3..c35f3ab 100644 --- a/arch/openrisc/kernel/process.c +++ b/arch/openrisc/kernel/process.c @@ -271,7 +271,7 @@ asmlinkage long _sys_execve(const char __user *name, struct pt_regs *regs) { int error; - char *filename; + struct filename *filename; filename = getname(name); error = PTR_ERR(filename); @@ -279,7 +279,7 @@ asmlinkage long _sys_execve(const char __user *name, if (IS_ERR(filename)) goto out; - error = do_execve(filename, argv, envp, regs); + error = do_execve(filename->name, argv, envp, regs); putname(filename); out: diff --git a/arch/openrisc/kernel/ptrace.c b/arch/openrisc/kernel/ptrace.c index e71781d..71a2a0c 100644 --- a/arch/openrisc/kernel/ptrace.c +++ b/arch/openrisc/kernel/ptrace.c @@ -187,7 +187,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs) */ ret = -1L; - audit_syscall_entry(audit_arch(), regs->gpr[11], + audit_syscall_entry(AUDIT_ARCH_OPENRISC, regs->gpr[11], regs->gpr[3], regs->gpr[4], regs->gpr[5], regs->gpr[6]); diff --git a/arch/openrisc/lib/delay.c b/arch/openrisc/lib/delay.c index 01d9740..c330767 100644 --- a/arch/openrisc/lib/delay.c +++ b/arch/openrisc/lib/delay.c @@ -30,9 +30,9 @@ int __devinit read_current_timer(unsigned long *timer_value) void __delay(unsigned long cycles) { - cycles_t target = get_cycles() + cycles; + cycles_t start = get_cycles(); - while (get_cycles() < target) + while ((get_cycles() - start) < cycles) cpu_relax(); } EXPORT_SYMBOL(__delay); @@ -41,7 +41,7 @@ inline void __const_udelay(unsigned long xloops) { unsigned long long loops; - loops = xloops * loops_per_jiffy * HZ; + loops = (unsigned long long)xloops * loops_per_jiffy * HZ; __delay(loops >> 32); } diff --git a/arch/openrisc/mm/fault.c b/arch/openrisc/mm/fault.c index 40f850e..e2bfafc 100644 --- a/arch/openrisc/mm/fault.c +++ b/arch/openrisc/mm/fault.c @@ -183,6 +183,7 @@ good_area: tsk->min_flt++; if (fault & VM_FAULT_RETRY) { flags &= ~FAULT_FLAG_ALLOW_RETRY; + flags |= FAULT_FLAG_TRIED; /* No need to up_read(&mm->mmap_sem) as we would * have already released it in __lock_page_or_retry |
