diff options
Diffstat (limited to 'arch/um/include/asm')
| -rw-r--r-- | arch/um/include/asm/hardirq.h | 23 | ||||
| -rw-r--r-- | arch/um/include/asm/page.h | 30 | ||||
| -rw-r--r-- | arch/um/include/asm/pgtable-3level.h | 4 | ||||
| -rw-r--r-- | arch/um/include/asm/pgtable.h | 2 | ||||
| -rw-r--r-- | arch/um/include/asm/syscall-generic.h | 138 | ||||
| -rw-r--r-- | arch/um/include/asm/thread_info.h | 2 |
6 files changed, 179 insertions, 20 deletions
diff --git a/arch/um/include/asm/hardirq.h b/arch/um/include/asm/hardirq.h new file mode 100644 index 000000000..756f0778e --- /dev/null +++ b/arch/um/include/asm/hardirq.h @@ -0,0 +1,23 @@ +#ifndef __ASM_UM_HARDIRQ_H +#define __ASM_UM_HARDIRQ_H + +#include <linux/cache.h> +#include <linux/threads.h> + +typedef struct { + unsigned int __softirq_pending; +} ____cacheline_aligned irq_cpustat_t; + +#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */ +#include <linux/irq.h> + +#ifndef ack_bad_irq +static inline void ack_bad_irq(unsigned int irq) +{ + printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq); +} +#endif + +#define __ARCH_IRQ_EXIT_IRQS_DISABLED 1 + +#endif /* __ASM_UM_HARDIRQ_H */ diff --git a/arch/um/include/asm/page.h b/arch/um/include/asm/page.h index 71c5d1320..f878bec23 100644 --- a/arch/um/include/asm/page.h +++ b/arch/um/include/asm/page.h @@ -18,6 +18,7 @@ struct page; +#include <linux/pfn.h> #include <linux/types.h> #include <asm/vm-flags.h> @@ -33,26 +34,22 @@ struct page; #if defined(CONFIG_3_LEVEL_PGTABLES) && !defined(CONFIG_64BIT) -typedef struct { unsigned long pte_low, pte_high; } pte_t; +typedef struct { unsigned long pte; } pte_t; typedef struct { unsigned long pmd; } pmd_t; typedef struct { unsigned long pgd; } pgd_t; -#define pte_val(x) ((x).pte_low | ((unsigned long long) (x).pte_high << 32)) - -#define pte_get_bits(pte, bits) ((pte).pte_low & (bits)) -#define pte_set_bits(pte, bits) ((pte).pte_low |= (bits)) -#define pte_clear_bits(pte, bits) ((pte).pte_low &= ~(bits)) -#define pte_copy(to, from) ({ (to).pte_high = (from).pte_high; \ - smp_wmb(); \ - (to).pte_low = (from).pte_low; }) -#define pte_is_zero(pte) (!((pte).pte_low & ~_PAGE_NEWPAGE) && !(pte).pte_high) -#define pte_set_val(pte, phys, prot) \ - ({ (pte).pte_high = (phys) >> 32; \ - (pte).pte_low = (phys) | pgprot_val(prot); }) +#define pte_val(p) ((p).pte) + +#define pte_get_bits(p, bits) ((p).pte & (bits)) +#define pte_set_bits(p, bits) ((p).pte |= (bits)) +#define pte_clear_bits(p, bits) ((p).pte &= ~(bits)) +#define pte_copy(to, from) ({ (to).pte = (from).pte; }) +#define pte_is_zero(p) (!((p).pte & ~_PAGE_NEWPAGE)) +#define pte_set_val(p, phys, prot) \ + ({ (p).pte = (phys) | pgprot_val(prot); }) #define pmd_val(x) ((x).pmd) #define __pmd(x) ((pmd_t) { (x) } ) -typedef unsigned long long pfn_t; typedef unsigned long long phys_t; #else @@ -76,7 +73,6 @@ typedef struct { unsigned long pmd; } pmd_t; #define pte_is_zero(p) (!((p).pte & ~_PAGE_NEWPAGE)) #define pte_set_val(p, phys, prot) (p).pte = (phys | pgprot_val(prot)) -typedef unsigned long pfn_t; typedef unsigned long phys_t; #endif @@ -109,8 +105,8 @@ extern unsigned long uml_physmem; #define __pa(virt) to_phys((void *) (unsigned long) (virt)) #define __va(phys) to_virt((unsigned long) (phys)) -#define phys_to_pfn(p) ((pfn_t) ((p) >> PAGE_SHIFT)) -#define pfn_to_phys(pfn) ((phys_t) ((pfn) << PAGE_SHIFT)) +#define phys_to_pfn(p) ((p) >> PAGE_SHIFT) +#define pfn_to_phys(pfn) PFN_PHYS(pfn) #define pfn_valid(pfn) ((pfn) < max_mapnr) #define virt_addr_valid(v) pfn_valid(phys_to_pfn(__pa(v))) diff --git a/arch/um/include/asm/pgtable-3level.h b/arch/um/include/asm/pgtable-3level.h index 2b4274e7c..bae8523a1 100644 --- a/arch/um/include/asm/pgtable-3level.h +++ b/arch/um/include/asm/pgtable-3level.h @@ -98,7 +98,7 @@ static inline unsigned long pte_pfn(pte_t pte) return phys_to_pfn(pte_val(pte)); } -static inline pte_t pfn_pte(pfn_t page_nr, pgprot_t pgprot) +static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot) { pte_t pte; phys_t phys = pfn_to_phys(page_nr); @@ -107,7 +107,7 @@ static inline pte_t pfn_pte(pfn_t page_nr, pgprot_t pgprot) return pte; } -static inline pmd_t pfn_pmd(pfn_t page_nr, pgprot_t pgprot) +static inline pmd_t pfn_pmd(unsigned long page_nr, pgprot_t pgprot) { return __pmd((page_nr << PAGE_SHIFT) | pgprot_val(pgprot)); } diff --git a/arch/um/include/asm/pgtable.h b/arch/um/include/asm/pgtable.h index 18eb9924d..7485398d0 100644 --- a/arch/um/include/asm/pgtable.h +++ b/arch/um/include/asm/pgtable.h @@ -271,7 +271,7 @@ static inline int pte_same(pte_t pte_a, pte_t pte_b) #define phys_to_page(phys) pfn_to_page(phys_to_pfn(phys)) #define __virt_to_page(virt) phys_to_page(__pa(virt)) -#define page_to_phys(page) pfn_to_phys((pfn_t) page_to_pfn(page)) +#define page_to_phys(page) pfn_to_phys(page_to_pfn(page)) #define virt_to_page(addr) __virt_to_page((const unsigned long) addr) #define mk_pte(page, pgprot) \ diff --git a/arch/um/include/asm/syscall-generic.h b/arch/um/include/asm/syscall-generic.h new file mode 100644 index 000000000..9fb9cf8cd --- /dev/null +++ b/arch/um/include/asm/syscall-generic.h @@ -0,0 +1,138 @@ +/* + * Access to user system call parameters and results + * + * See asm-generic/syscall.h for function descriptions. + * + * Copyright (C) 2015 Mickaël Salaün <mic@digikod.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __UM_SYSCALL_GENERIC_H +#define __UM_SYSCALL_GENERIC_H + +#include <asm/ptrace.h> +#include <linux/err.h> +#include <linux/sched.h> +#include <sysdep/ptrace.h> + +static inline int syscall_get_nr(struct task_struct *task, struct pt_regs *regs) +{ + + return PT_REGS_SYSCALL_NR(regs); +} + +static inline void syscall_rollback(struct task_struct *task, + struct pt_regs *regs) +{ + /* do nothing */ +} + +static inline long syscall_get_error(struct task_struct *task, + struct pt_regs *regs) +{ + const long error = regs_return_value(regs); + + return IS_ERR_VALUE(error) ? error : 0; +} + +static inline long syscall_get_return_value(struct task_struct *task, + struct pt_regs *regs) +{ + return regs_return_value(regs); +} + +static inline void syscall_set_return_value(struct task_struct *task, + struct pt_regs *regs, + int error, long val) +{ + PT_REGS_SET_SYSCALL_RETURN(regs, (long) error ?: val); +} + +static inline void syscall_get_arguments(struct task_struct *task, + struct pt_regs *regs, + unsigned int i, unsigned int n, + unsigned long *args) +{ + const struct uml_pt_regs *r = ®s->regs; + + switch (i) { + case 0: + if (!n--) + break; + *args++ = UPT_SYSCALL_ARG1(r); + case 1: + if (!n--) + break; + *args++ = UPT_SYSCALL_ARG2(r); + case 2: + if (!n--) + break; + *args++ = UPT_SYSCALL_ARG3(r); + case 3: + if (!n--) + break; + *args++ = UPT_SYSCALL_ARG4(r); + case 4: + if (!n--) + break; + *args++ = UPT_SYSCALL_ARG5(r); + case 5: + if (!n--) + break; + *args++ = UPT_SYSCALL_ARG6(r); + case 6: + if (!n--) + break; + default: + BUG(); + break; + } +} + +static inline void syscall_set_arguments(struct task_struct *task, + struct pt_regs *regs, + unsigned int i, unsigned int n, + const unsigned long *args) +{ + struct uml_pt_regs *r = ®s->regs; + + switch (i) { + case 0: + if (!n--) + break; + UPT_SYSCALL_ARG1(r) = *args++; + case 1: + if (!n--) + break; + UPT_SYSCALL_ARG2(r) = *args++; + case 2: + if (!n--) + break; + UPT_SYSCALL_ARG3(r) = *args++; + case 3: + if (!n--) + break; + UPT_SYSCALL_ARG4(r) = *args++; + case 4: + if (!n--) + break; + UPT_SYSCALL_ARG5(r) = *args++; + case 5: + if (!n--) + break; + UPT_SYSCALL_ARG6(r) = *args++; + case 6: + if (!n--) + break; + default: + BUG(); + break; + } +} + +/* See arch/x86/um/asm/syscall.h for syscall_get_arch() definition. */ + +#endif /* __UM_SYSCALL_GENERIC_H */ diff --git a/arch/um/include/asm/thread_info.h b/arch/um/include/asm/thread_info.h index 53968aaf7..053baff03 100644 --- a/arch/um/include/asm/thread_info.h +++ b/arch/um/include/asm/thread_info.h @@ -62,11 +62,13 @@ static inline struct thread_info *current_thread_info(void) #define TIF_SYSCALL_AUDIT 6 #define TIF_RESTORE_SIGMASK 7 #define TIF_NOTIFY_RESUME 8 +#define TIF_SECCOMP 9 /* secure computing */ #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) #define _TIF_MEMDIE (1 << TIF_MEMDIE) #define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) +#define _TIF_SECCOMP (1 << TIF_SECCOMP) #endif |