diff options
Diffstat (limited to 'arch/s390/include/asm')
| -rw-r--r-- | arch/s390/include/asm/cpu_mcf.h | 126 | ||||
| -rw-r--r-- | arch/s390/include/asm/cpu_mf-insn.h | 22 | ||||
| -rw-r--r-- | arch/s390/include/asm/cpu_mf.h | 18 | ||||
| -rw-r--r-- | arch/s390/include/asm/diag.h | 12 | ||||
| -rw-r--r-- | arch/s390/include/asm/ftrace.h | 25 | ||||
| -rw-r--r-- | arch/s390/include/asm/jump_label.h | 14 | ||||
| -rw-r--r-- | arch/s390/include/asm/pci.h | 1 | ||||
| -rw-r--r-- | arch/s390/include/asm/perf_event.h | 2 | ||||
| -rw-r--r-- | arch/s390/include/asm/pgtable.h | 5 | ||||
| -rw-r--r-- | arch/s390/include/asm/pnet.h | 8 | ||||
| -rw-r--r-- | arch/s390/include/asm/qdio.h | 4 | ||||
| -rw-r--r-- | arch/s390/include/asm/sclp.h | 1 | ||||
| -rw-r--r-- | arch/s390/include/asm/string.h | 28 | ||||
| -rw-r--r-- | arch/s390/include/asm/syscall_wrapper.h | 135 | ||||
| -rw-r--r-- | arch/s390/include/asm/uaccess.h | 1 | ||||
| -rw-r--r-- | arch/s390/include/asm/unistd.h | 7 | ||||
| -rw-r--r-- | arch/s390/include/asm/vx-insn.h | 8 |
17 files changed, 378 insertions, 39 deletions
diff --git a/arch/s390/include/asm/cpu_mcf.h b/arch/s390/include/asm/cpu_mcf.h new file mode 100644 index 000000000000..649b9fc60685 --- /dev/null +++ b/arch/s390/include/asm/cpu_mcf.h @@ -0,0 +1,126 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Counter facility support definitions for the Linux perf + * + * Copyright IBM Corp. 2019 + * Author(s): Hendrik Brueckner <brueckner@linux.ibm.com> + */ +#ifndef _ASM_S390_CPU_MCF_H +#define _ASM_S390_CPU_MCF_H + +#include <linux/perf_event.h> +#include <asm/cpu_mf.h> + +enum cpumf_ctr_set { + CPUMF_CTR_SET_BASIC = 0, /* Basic Counter Set */ + CPUMF_CTR_SET_USER = 1, /* Problem-State Counter Set */ + CPUMF_CTR_SET_CRYPTO = 2, /* Crypto-Activity Counter Set */ + CPUMF_CTR_SET_EXT = 3, /* Extended Counter Set */ + CPUMF_CTR_SET_MT_DIAG = 4, /* MT-diagnostic Counter Set */ + + /* Maximum number of counter sets */ + CPUMF_CTR_SET_MAX, +}; + +#define CPUMF_LCCTL_ENABLE_SHIFT 16 +#define CPUMF_LCCTL_ACTCTL_SHIFT 0 +static const u64 cpumf_ctr_ctl[CPUMF_CTR_SET_MAX] = { + [CPUMF_CTR_SET_BASIC] = 0x02, + [CPUMF_CTR_SET_USER] = 0x04, + [CPUMF_CTR_SET_CRYPTO] = 0x08, + [CPUMF_CTR_SET_EXT] = 0x01, + [CPUMF_CTR_SET_MT_DIAG] = 0x20, +}; + +static inline void ctr_set_enable(u64 *state, int ctr_set) +{ + *state |= cpumf_ctr_ctl[ctr_set] << CPUMF_LCCTL_ENABLE_SHIFT; +} +static inline void ctr_set_disable(u64 *state, int ctr_set) +{ + *state &= ~(cpumf_ctr_ctl[ctr_set] << CPUMF_LCCTL_ENABLE_SHIFT); +} +static inline void ctr_set_start(u64 *state, int ctr_set) +{ + *state |= cpumf_ctr_ctl[ctr_set] << CPUMF_LCCTL_ACTCTL_SHIFT; +} +static inline void ctr_set_stop(u64 *state, int ctr_set) +{ + *state &= ~(cpumf_ctr_ctl[ctr_set] << CPUMF_LCCTL_ACTCTL_SHIFT); +} + +static inline void ctr_set_multiple_enable(u64 *state, u64 ctrsets) +{ + *state |= ctrsets << CPUMF_LCCTL_ENABLE_SHIFT; +} + +static inline void ctr_set_multiple_disable(u64 *state, u64 ctrsets) +{ + *state &= ~(ctrsets << CPUMF_LCCTL_ENABLE_SHIFT); +} + +static inline void ctr_set_multiple_start(u64 *state, u64 ctrsets) +{ + *state |= ctrsets << CPUMF_LCCTL_ACTCTL_SHIFT; +} + +static inline void ctr_set_multiple_stop(u64 *state, u64 ctrsets) +{ + *state &= ~(ctrsets << CPUMF_LCCTL_ACTCTL_SHIFT); +} + +static inline int ctr_stcctm(enum cpumf_ctr_set set, u64 range, u64 *dest) +{ + switch (set) { + case CPUMF_CTR_SET_BASIC: + return stcctm(BASIC, range, dest); + case CPUMF_CTR_SET_USER: + return stcctm(PROBLEM_STATE, range, dest); + case CPUMF_CTR_SET_CRYPTO: + return stcctm(CRYPTO_ACTIVITY, range, dest); + case CPUMF_CTR_SET_EXT: + return stcctm(EXTENDED, range, dest); + case CPUMF_CTR_SET_MT_DIAG: + return stcctm(MT_DIAG_CLEARING, range, dest); + case CPUMF_CTR_SET_MAX: + return 3; + } + return 3; +} + +struct cpu_cf_events { + struct cpumf_ctr_info info; + atomic_t ctr_set[CPUMF_CTR_SET_MAX]; + atomic64_t alert; + u64 state, tx_state; + unsigned int flags; + unsigned int txn_flags; +}; +DECLARE_PER_CPU(struct cpu_cf_events, cpu_cf_events); + +bool kernel_cpumcf_avail(void); +int __kernel_cpumcf_begin(void); +unsigned long kernel_cpumcf_alert(int clear); +void __kernel_cpumcf_end(void); + +static inline int kernel_cpumcf_begin(void) +{ + if (!cpum_cf_avail()) + return -ENODEV; + + preempt_disable(); + return __kernel_cpumcf_begin(); +} +static inline void kernel_cpumcf_end(void) +{ + __kernel_cpumcf_end(); + preempt_enable(); +} + +/* Return true if store counter set multiple instruction is available */ +static inline int stccm_avail(void) +{ + return test_facility(142); +} + +#endif /* _ASM_S390_CPU_MCF_H */ diff --git a/arch/s390/include/asm/cpu_mf-insn.h b/arch/s390/include/asm/cpu_mf-insn.h new file mode 100644 index 000000000000..a68b362e0964 --- /dev/null +++ b/arch/s390/include/asm/cpu_mf-insn.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Support for CPU-MF instructions + * + * Copyright IBM Corp. 2019 + * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com> + */ +#ifndef _ASM_S390_CPU_MF_INSN_H +#define _ASM_S390_CPU_MF_INSN_H + +#ifdef __ASSEMBLY__ + +/* Macro to generate the STCCTM instruction with a customized + * M3 field designating the counter set. + */ +.macro STCCTM r1 m3 db2 + .insn rsy,0xeb0000000017,\r1,\m3 & 0xf,\db2 +.endm + +#endif /* __ASSEMBLY__ */ + +#endif diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h index bf2cbff926ef..ae3e3221d4b5 100644 --- a/arch/s390/include/asm/cpu_mf.h +++ b/arch/s390/include/asm/cpu_mf.h @@ -12,6 +12,8 @@ #include <linux/errno.h> #include <asm/facility.h> +asm(".include \"asm/cpu_mf-insn.h\"\n"); + #define CPU_MF_INT_SF_IAE (1 << 31) /* invalid entry address */ #define CPU_MF_INT_SF_ISE (1 << 30) /* incorrect SDBT entry */ #define CPU_MF_INT_SF_PRA (1 << 29) /* program request alert */ @@ -209,17 +211,25 @@ static inline int ecctr(u64 ctr, u64 *val) return cc; } -/* Store CPU counter multiple for the MT utilization counter set */ -static inline int stcctm5(u64 num, u64 *val) +/* Store CPU counter multiple for a particular counter set */ +enum stcctm_ctr_set { + EXTENDED = 0, + BASIC = 1, + PROBLEM_STATE = 2, + CRYPTO_ACTIVITY = 3, + MT_DIAG = 5, + MT_DIAG_CLEARING = 9, /* clears loss-of-MT-ctr-data alert */ +}; +static inline int stcctm(enum stcctm_ctr_set set, u64 range, u64 *dest) { int cc; asm volatile ( - " .insn rsy,0xeb0000000017,%2,5,%1\n" + " STCCTM %2,%3,%1\n" " ipm %0\n" " srl %0,28\n" : "=d" (cc) - : "Q" (*val), "d" (num) + : "Q" (*dest), "d" (range), "i" (set) : "cc", "memory"); return cc; } diff --git a/arch/s390/include/asm/diag.h b/arch/s390/include/asm/diag.h index cdbaad50c7c7..19562be22b7e 100644 --- a/arch/s390/include/asm/diag.h +++ b/arch/s390/include/asm/diag.h @@ -32,6 +32,7 @@ enum diag_stat_enum { DIAG_STAT_X2FC, DIAG_STAT_X304, DIAG_STAT_X308, + DIAG_STAT_X318, DIAG_STAT_X500, NR_DIAG_STAT }; @@ -293,6 +294,17 @@ struct diag26c_mac_resp { u8 res[2]; } __aligned(8); +#define CPNC_LINUX 0x4 +union diag318_info { + unsigned long val; + struct { + unsigned int cpnc : 8; + unsigned int cpvc_linux : 24; + unsigned char cpvc_distro[3]; + unsigned char zero; + }; +}; + int diag204(unsigned long subcode, unsigned long size, void *addr); int diag224(void *ptr); int diag26c(void *req, void *resp, enum diag26c_sc subcode); diff --git a/arch/s390/include/asm/ftrace.h b/arch/s390/include/asm/ftrace.h index 8ea270fdc7fb..5a3c95b11952 100644 --- a/arch/s390/include/asm/ftrace.h +++ b/arch/s390/include/asm/ftrace.h @@ -81,5 +81,30 @@ static inline void ftrace_generate_call_insn(struct ftrace_insn *insn, #endif } +/* + * Even though the system call numbers are identical for s390/s390x a + * different system call table is used for compat tasks. This may lead + * to e.g. incorrect or missing trace event sysfs files. + * Therefore simply do not trace compat system calls at all. + * See kernel/trace/trace_syscalls.c. + */ +#define ARCH_TRACE_IGNORE_COMPAT_SYSCALLS +static inline bool arch_trace_is_compat_syscall(struct pt_regs *regs) +{ + return is_compat_task(); +} + +#define ARCH_HAS_SYSCALL_MATCH_SYM_NAME +static inline bool arch_syscall_match_sym_name(const char *sym, + const char *name) +{ + /* + * Skip __s390_ and __s390x_ prefix - due to compat wrappers + * and aliasing some symbols of 64 bit system call functions + * may get the __s390_ prefix instead of the __s390x_ prefix. + */ + return !strcmp(sym + 7, name) || !strcmp(sym + 8, name); +} + #endif /* __ASSEMBLY__ */ #endif /* _ASM_S390_FTRACE_H */ diff --git a/arch/s390/include/asm/jump_label.h b/arch/s390/include/asm/jump_label.h index e2d3e6c43395..e548ec1ec12c 100644 --- a/arch/s390/include/asm/jump_label.h +++ b/arch/s390/include/asm/jump_label.h @@ -10,6 +10,12 @@ #define JUMP_LABEL_NOP_SIZE 6 #define JUMP_LABEL_NOP_OFFSET 2 +#if __GNUC__ < 9 +#define JUMP_LABEL_STATIC_KEY_CONSTRAINT "X" +#else +#define JUMP_LABEL_STATIC_KEY_CONSTRAINT "jdd" +#endif + /* * We use a brcl 0,2 instruction for jump labels at compile time so it * can be easily distinguished from a hotpatch generated instruction. @@ -20,9 +26,9 @@ static inline bool arch_static_branch(struct static_key *key, bool branch) ".pushsection __jump_table,\"aw\"\n" ".balign 8\n" ".long 0b-.,%l[label]-.\n" - ".quad %0-.\n" + ".quad %0+%1-.\n" ".popsection\n" - : : "X" (&((char *)key)[branch]) : : label); + : : JUMP_LABEL_STATIC_KEY_CONSTRAINT (key), "i" (branch) : : label); return false; label: return true; @@ -34,9 +40,9 @@ static inline bool arch_static_branch_jump(struct static_key *key, bool branch) ".pushsection __jump_table,\"aw\"\n" ".balign 8\n" ".long 0b-.,%l[label]-.\n" - ".quad %0-.\n" + ".quad %0+%1-.\n" ".popsection\n" - : : "X" (&((char *)key)[branch]) : : label); + : : JUMP_LABEL_STATIC_KEY_CONSTRAINT (key), "i" (branch) : : label); return false; label: return true; diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 10fe982f2b4b..4e0efebc56a9 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -148,7 +148,6 @@ struct zpci_dev { enum pci_bus_speed max_bus_speed; struct dentry *debugfs_dev; - struct dentry *debugfs_perf; struct s390_domain *s390_domain; /* s390 IOMMU domain data */ }; diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h index b9c0e361748b..560d8f766ddf 100644 --- a/arch/s390/include/asm/perf_event.h +++ b/arch/s390/include/asm/perf_event.h @@ -12,7 +12,6 @@ #include <linux/perf_event.h> #include <linux/device.h> -#include <asm/cpu_mf.h> /* Per-CPU flags for PMU states */ #define PMU_F_RESERVED 0x1000 @@ -55,6 +54,7 @@ struct perf_sf_sde_regs { #define PERF_CPUM_SF_MAX_CTR 2 #define PERF_EVENT_CPUM_SF 0xB0000UL /* Event: Basic-sampling */ #define PERF_EVENT_CPUM_SF_DIAG 0xBD000UL /* Event: Combined-sampling */ +#define PERF_EVENT_CPUM_CF_DIAG 0xBC000UL /* Event: Counter sets */ #define PERF_CPUM_SF_BASIC_MODE 0x0001 /* Basic-sampling flag */ #define PERF_CPUM_SF_DIAG_MODE 0x0002 /* Diagnostic-sampling flag */ #define PERF_CPUM_SF_MODE_MASK (PERF_CPUM_SF_BASIC_MODE| \ diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 063732414dfb..76dc344edb8c 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -1069,8 +1069,9 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, } #define __HAVE_ARCH_PTEP_MODIFY_PROT_TRANSACTION -pte_t ptep_modify_prot_start(struct mm_struct *, unsigned long, pte_t *); -void ptep_modify_prot_commit(struct mm_struct *, unsigned long, pte_t *, pte_t); +pte_t ptep_modify_prot_start(struct vm_area_struct *, unsigned long, pte_t *); +void ptep_modify_prot_commit(struct vm_area_struct *, unsigned long, + pte_t *, pte_t, pte_t); #define __HAVE_ARCH_PTEP_CLEAR_FLUSH static inline pte_t ptep_clear_flush(struct vm_area_struct *vma, diff --git a/arch/s390/include/asm/pnet.h b/arch/s390/include/asm/pnet.h index 6e278584f8f1..5739276b458d 100644 --- a/arch/s390/include/asm/pnet.h +++ b/arch/s390/include/asm/pnet.h @@ -11,13 +11,5 @@ #include <linux/device.h> #include <linux/types.h> -#define PNETIDS_LEN 64 /* Total utility string length in bytes - * to cover up to 4 PNETIDs of 16 bytes - * for up to 4 device ports - */ -#define MAX_PNETID_LEN 16 /* Max.length of a single port PNETID */ -#define MAX_PNETID_PORTS (PNETIDS_LEN / MAX_PNETID_LEN) - /* Max. # of ports with a PNETID */ - int pnet_id_by_dev_port(struct device *dev, unsigned short port, u8 *pnetid); #endif /* _ASM_S390_PNET_H */ diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h index d46edde7e458..db5ef22c46e4 100644 --- a/arch/s390/include/asm/qdio.h +++ b/arch/s390/include/asm/qdio.h @@ -361,8 +361,8 @@ struct qdio_initialize { unsigned long); int scan_threshold; unsigned long int_parm; - void **input_sbal_addr_array; - void **output_sbal_addr_array; + struct qdio_buffer **input_sbal_addr_array; + struct qdio_buffer **output_sbal_addr_array; struct qdio_outbuf_state *output_sbal_state_array; }; diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index 0cd4bda85eb1..ef4c9dec06a4 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -78,6 +78,7 @@ struct sclp_info { unsigned char has_skey : 1; unsigned char has_kss : 1; unsigned char has_gisaf : 1; + unsigned char has_diag318 : 1; unsigned int ibc; unsigned int mtid; unsigned int mtid_cp; diff --git a/arch/s390/include/asm/string.h b/arch/s390/include/asm/string.h index 116cc15a4b8a..70d87db54e62 100644 --- a/arch/s390/include/asm/string.h +++ b/arch/s390/include/asm/string.h @@ -12,15 +12,21 @@ #include <linux/types.h> #endif -#define __HAVE_ARCH_MEMCHR /* inline & arch function */ -#define __HAVE_ARCH_MEMCMP /* arch function */ #define __HAVE_ARCH_MEMCPY /* gcc builtin & arch function */ #define __HAVE_ARCH_MEMMOVE /* gcc builtin & arch function */ -#define __HAVE_ARCH_MEMSCAN /* inline & arch function */ #define __HAVE_ARCH_MEMSET /* gcc builtin & arch function */ #define __HAVE_ARCH_MEMSET16 /* arch function */ #define __HAVE_ARCH_MEMSET32 /* arch function */ #define __HAVE_ARCH_MEMSET64 /* arch function */ + +void *memcpy(void *dest, const void *src, size_t n); +void *memset(void *s, int c, size_t n); +void *memmove(void *dest, const void *src, size_t n); + +#ifndef CONFIG_KASAN +#define __HAVE_ARCH_MEMCHR /* inline & arch function */ +#define __HAVE_ARCH_MEMCMP /* arch function */ +#define __HAVE_ARCH_MEMSCAN /* inline & arch function */ #define __HAVE_ARCH_STRCAT /* inline & arch function */ #define __HAVE_ARCH_STRCMP /* arch function */ #define __HAVE_ARCH_STRCPY /* inline & arch function */ @@ -35,9 +41,6 @@ /* Prototypes for non-inlined arch strings functions. */ int memcmp(const void *s1, const void *s2, size_t n); -void *memcpy(void *dest, const void *src, size_t n); -void *memset(void *s, int c, size_t n); -void *memmove(void *dest, const void *src, size_t n); int strcmp(const char *s1, const char *s2); size_t strlcat(char *dest, const char *src, size_t n); size_t strlcpy(char *dest, const char *src, size_t size); @@ -45,6 +48,7 @@ char *strncat(char *dest, const char *src, size_t n); char *strncpy(char *dest, const char *src, size_t n); char *strrchr(const char *s, int c); char *strstr(const char *s1, const char *s2); +#endif /* !CONFIG_KASAN */ #undef __HAVE_ARCH_STRCHR #undef __HAVE_ARCH_STRNCHR @@ -95,6 +99,7 @@ static inline void *memset64(uint64_t *s, uint64_t v, size_t count) #if !defined(IN_ARCH_STRING_C) && (!defined(CONFIG_FORTIFY_SOURCE) || defined(__NO_FORTIFY)) +#ifdef __HAVE_ARCH_MEMCHR static inline void *memchr(const void * s, int c, size_t n) { register int r0 asm("0") = (char) c; @@ -109,7 +114,9 @@ static inline void *memchr(const void * s, int c, size_t n) : "+a" (ret), "+&a" (s) : "d" (r0) : "cc", "memory"); return (void *) ret; } +#endif +#ifdef __HAVE_ARCH_MEMSCAN static inline void *memscan(void *s, int c, size_t n) { register int r0 asm("0") = (char) c; @@ -121,7 +128,9 @@ static inline void *memscan(void *s, int c, size_t n) : "+a" (ret), "+&a" (s) : "d" (r0) : "cc", "memory"); return (void *) ret; } +#endif +#ifdef __HAVE_ARCH_STRCAT static inline char *strcat(char *dst, const char *src) { register int r0 asm("0") = 0; @@ -137,7 +146,9 @@ static inline char *strcat(char *dst, const char *src) : "d" (r0), "0" (0) : "cc", "memory" ); return ret; } +#endif +#ifdef __HAVE_ARCH_STRCPY static inline char *strcpy(char *dst, const char *src) { register int r0 asm("0") = 0; @@ -150,7 +161,9 @@ static inline char *strcpy(char *dst, const char *src) : "cc", "memory"); return ret; } +#endif +#ifdef __HAVE_ARCH_STRLEN static inline size_t strlen(const char *s) { register unsigned long r0 asm("0") = 0; @@ -162,7 +175,9 @@ static inline size_t strlen(const char *s) : "+d" (r0), "+a" (tmp) : : "cc", "memory"); return r0 - (unsigned long) s; } +#endif +#ifdef __HAVE_ARCH_STRNLEN static inline size_t strnlen(const char * s, size_t n) { register int r0 asm("0") = 0; @@ -175,6 +190,7 @@ static inline size_t strnlen(const char * s, size_t n) : "+a" (end), "+a" (tmp) : "d" (r0) : "cc", "memory"); return end - s; } +#endif #else /* IN_ARCH_STRING_C */ void *memchr(const void * s, int c, size_t n); void *memscan(void *s, int c, size_t n); diff --git a/arch/s390/include/asm/syscall_wrapper.h b/arch/s390/include/asm/syscall_wrapper.h new file mode 100644 index 000000000000..5596c5c625d2 --- /dev/null +++ b/arch/s390/include/asm/syscall_wrapper.h @@ -0,0 +1,135 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * syscall_wrapper.h - s390 specific wrappers to syscall definitions + * + */ + +#ifndef _ASM_S390_SYSCALL_WRAPPER_H +#define _ASM_S390_SYSCALL_WRAPPER_H + +#ifdef CONFIG_COMPAT +#define __SC_COMPAT_TYPE(t, a) \ + __typeof(__builtin_choose_expr(sizeof(t) > 4, 0L, (t)0)) a + +#define __SC_COMPAT_CAST(t, a) \ +({ \ + long __ReS = a; \ + \ + BUILD_BUG_ON((sizeof(t) > 4) && !__TYPE_IS_L(t) && \ + !__TYPE_IS_UL(t) && !__TYPE_IS_PTR(t) && \ + !__TYPE_IS_LL(t)); \ + if (__TYPE_IS_L(t)) \ + __ReS = (s32)a; \ + if (__TYPE_IS_UL(t)) \ + __ReS = (u32)a; \ + if (__TYPE_IS_PTR(t)) \ + __ReS = a & 0x7fffffff; \ + if (__TYPE_IS_LL(t)) \ + return -ENOSYS; \ + (t)__ReS; \ +}) + +#define __S390_SYS_STUBx(x, name, ...) \ + asmlinkage long __s390_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__))\ + ALLOW_ERROR_INJECTION(__s390_sys##name, ERRNO); \ + asmlinkage long __s390_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__))\ + { \ + long ret = __s390x_sys##name(__MAP(x,__SC_COMPAT_CAST,__VA_ARGS__));\ + __MAP(x,__SC_TEST,__VA_ARGS__); \ + return ret; \ + } + +/* + * To keep the naming coherent, re-define SYSCALL_DEFINE0 to create an alias + * named __s390x_sys_*() + */ +#define COMPAT_SYSCALL_DEFINE0(sname) \ + SYSCALL_METADATA(_##sname, 0); \ + asmlinkage long __s390_compat_sys_##sname(void); \ + ALLOW_ERROR_INJECTION(__s390_compat__sys_##sname, ERRNO); \ + asmlinkage long __s390_compat_sys_##sname(void) + +#define SYSCALL_DEFINE0(sname) \ + SYSCALL_METADATA(_##sname, 0); \ + asmlinkage long __s390x_sys_##sname(void); \ + ALLOW_ERROR_INJECTION(__s390x_sys_##sname, ERRNO); \ + asmlinkage long __s390_sys_##sname(void) \ + __attribute__((alias(__stringify(__s390x_sys_##sname)))); \ + asmlinkage long __s390x_sys_##sname(void) + +#define COND_SYSCALL(name) \ + cond_syscall(__s390x_sys_##name); \ + cond_syscall(__s390_sys_##name) + +#define SYS_NI(name) \ + SYSCALL_ALIAS(__s390x_sys_##name, sys_ni_posix_timers); \ + SYSCALL_ALIAS(__s390_sys_##name, sys_ni_posix_timers) + +#define COMPAT_SYSCALL_DEFINEx(x, name, ...) \ + __diag_push(); \ + __diag_ignore(GCC, 8, "-Wattribute-alias", \ + "Type aliasing is used to sanitize syscall arguments");\ + asmlinkage long __s390_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \ + asmlinkage long __s390_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ + __attribute__((alias(__stringify(__se_compat_sys##name)))); \ + ALLOW_ERROR_INJECTION(compat_sys##name, ERRNO); \ + static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ + asmlinkage long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ + asmlinkage long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ + { \ + long ret = __do_compat_sys##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__));\ + __MAP(x,__SC_TEST,__VA_ARGS__); \ + return ret; \ + } \ + __diag_pop(); \ + static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) + +/* + * As some compat syscalls may not be implemented, we need to expand + * COND_SYSCALL_COMPAT in kernel/sys_ni.c and COMPAT_SYS_NI in + * kernel/time/posix-stubs.c to cover this case as well. + */ +#define COND_SYSCALL_COMPAT(name) \ + cond_syscall(__s390_compat_sys_##name) + +#define COMPAT_SYS_NI(name) \ + SYSCALL_ALIAS(__s390_compat_sys_##name, sys_ni_posix_timers) + +#else /* CONFIG_COMPAT */ + +#define __S390_SYS_STUBx(x, fullname, name, ...) + +#define SYSCALL_DEFINE0(sname) \ + SYSCALL_METADATA(_##sname, 0); \ + asmlinkage long __s390x_sys_##sname(void); \ + ALLOW_ERROR_INJECTION(__s390x_sys_##sname, ERRNO); \ + asmlinkage long __s390x_sys_##sname(void) + +#define COND_SYSCALL(name) \ + cond_syscall(__s390x_sys_##name) + +#define SYS_NI(name) \ + SYSCALL_ALIAS(__s390x_sys_##name, sys_ni_posix_timers); + +#endif /* CONFIG_COMPAT */ + +#define __SYSCALL_DEFINEx(x, name, ...) \ + __diag_push(); \ + __diag_ignore(GCC, 8, "-Wattribute-alias", \ + "Type aliasing is used to sanitize syscall arguments");\ + asmlinkage long __s390x_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ + __attribute__((alias(__stringify(__se_sys##name)))); \ + ALLOW_ERROR_INJECTION(__s390x_sys##name, ERRNO); \ + static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ + static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \ + __S390_SYS_STUBx(x, name, __VA_ARGS__) \ + asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ + { \ + long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__)); \ + __MAP(x,__SC_TEST,__VA_ARGS__); \ + return ret; \ + } \ + __diag_pop(); \ + static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) + +#endif /* _ASM_X86_SYSCALL_WRAPPER_H */ diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h index bd2545977ad3..007fcb9aeeb8 100644 --- a/arch/s390/include/asm/uaccess.h +++ b/arch/s390/include/asm/uaccess.h @@ -31,7 +31,6 @@ #define USER_DS (2) #define USER_DS_SACF (3) -#define get_ds() (KERNEL_DS) #define get_fs() (current->thread.mm_segment) #define segment_eq(a,b) (((a) & 2) == ((b) & 2)) diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index a1fbf15d53aa..b6755685c7b8 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -10,11 +10,6 @@ #include <uapi/asm/unistd.h> #include <asm/unistd_nr.h> -#define __IGNORE_time -#define __IGNORE_pkey_mprotect -#define __IGNORE_pkey_alloc -#define __IGNORE_pkey_free - #define __ARCH_WANT_NEW_STAT #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_SYS_ALARM @@ -33,7 +28,7 @@ #define __ARCH_WANT_SYS_SIGPENDING #define __ARCH_WANT_SYS_SIGPROCMASK # ifdef CONFIG_COMPAT -# define __ARCH_WANT_COMPAT_SYS_TIME +# define __ARCH_WANT_SYS_TIME32 # define __ARCH_WANT_SYS_UTIME32 # endif #define __ARCH_WANT_SYS_FORK diff --git a/arch/s390/include/asm/vx-insn.h b/arch/s390/include/asm/vx-insn.h index 266a72320e05..0c05a673811c 100644 --- a/arch/s390/include/asm/vx-insn.h +++ b/arch/s390/include/asm/vx-insn.h @@ -363,23 +363,23 @@ .endm /* VECTOR LOAD MULTIPLE */ -.macro VLM vfrom, vto, disp, base +.macro VLM vfrom, vto, disp, base, hint=3 VX_NUM v1, \vfrom VX_NUM v3, \vto GR_NUM b2, \base /* Base register */ .word 0xE700 | ((v1&15) << 4) | (v3&15) .word (b2 << 12) | (\disp) - MRXBOPC 0, 0x36, v1, v3 + MRXBOPC \hint, 0x36, v1, v3 .endm /* VECTOR STORE MULTIPLE */ -.macro VSTM vfrom, vto, disp, base +.macro VSTM vfrom, vto, disp, base, hint=3 VX_NUM v1, \vfrom VX_NUM v3, \vto GR_NUM b2, \base /* Base register */ .word 0xE700 | ((v1&15) << 4) | (v3&15) .word (b2 << 12) | (\disp) - MRXBOPC 0, 0x3E, v1, v3 + MRXBOPC \hint, 0x3E, v1, v3 .endm /* VECTOR PERMUTE */ |