diff options
Diffstat (limited to 'arch/s390/include')
40 files changed, 1138 insertions, 341 deletions
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild index 7a5288f3479a..57892a8a9055 100644 --- a/arch/s390/include/asm/Kbuild +++ b/arch/s390/include/asm/Kbuild @@ -1,5 +1,7 @@ generic-y += clkdev.h -generic-y += trace_clock.h +generic-y += hash.h +generic-y += mcs_spinlock.h generic-y += preempt.h +generic-y += trace_clock.h diff --git a/arch/s390/include/asm/airq.h b/arch/s390/include/asm/airq.h index 4bbb5957ed1b..bd93ff6661b8 100644 --- a/arch/s390/include/asm/airq.h +++ b/arch/s390/include/asm/airq.h @@ -44,11 +44,21 @@ struct airq_iv { struct airq_iv *airq_iv_create(unsigned long bits, unsigned long flags); void airq_iv_release(struct airq_iv *iv); -unsigned long airq_iv_alloc_bit(struct airq_iv *iv); -void airq_iv_free_bit(struct airq_iv *iv, unsigned long bit); +unsigned long airq_iv_alloc(struct airq_iv *iv, unsigned long num); +void airq_iv_free(struct airq_iv *iv, unsigned long bit, unsigned long num); unsigned long airq_iv_scan(struct airq_iv *iv, unsigned long start, unsigned long end); +static inline unsigned long airq_iv_alloc_bit(struct airq_iv *iv) +{ + return airq_iv_alloc(iv, 1); +} + +static inline void airq_iv_free_bit(struct airq_iv *iv, unsigned long bit) +{ + airq_iv_free(iv, bit, 1); +} + static inline unsigned long airq_iv_end(struct airq_iv *iv) { return iv->end; diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h index fa9aaf7144b7..1d4706114a45 100644 --- a/arch/s390/include/asm/atomic.h +++ b/arch/s390/include/asm/atomic.h @@ -15,23 +15,29 @@ #include <linux/compiler.h> #include <linux/types.h> +#include <asm/barrier.h> #include <asm/cmpxchg.h> #define ATOMIC_INIT(i) { (i) } +#define __ATOMIC_NO_BARRIER "\n" + #ifdef CONFIG_HAVE_MARCH_Z196_FEATURES #define __ATOMIC_OR "lao" #define __ATOMIC_AND "lan" #define __ATOMIC_ADD "laa" +#define __ATOMIC_BARRIER "bcr 14,0\n" -#define __ATOMIC_LOOP(ptr, op_val, op_string) \ +#define __ATOMIC_LOOP(ptr, op_val, op_string, __barrier) \ ({ \ int old_val; \ \ typecheck(atomic_t *, ptr); \ asm volatile( \ + __barrier \ op_string " %0,%2,%1\n" \ + __barrier \ : "=d" (old_val), "+Q" ((ptr)->counter) \ : "d" (op_val) \ : "cc", "memory"); \ @@ -43,8 +49,9 @@ #define __ATOMIC_OR "or" #define __ATOMIC_AND "nr" #define __ATOMIC_ADD "ar" +#define __ATOMIC_BARRIER "\n" -#define __ATOMIC_LOOP(ptr, op_val, op_string) \ +#define __ATOMIC_LOOP(ptr, op_val, op_string, __barrier) \ ({ \ int old_val, new_val; \ \ @@ -82,7 +89,7 @@ static inline void atomic_set(atomic_t *v, int i) static inline int atomic_add_return(int i, atomic_t *v) { - return __ATOMIC_LOOP(v, i, __ATOMIC_ADD) + i; + return __ATOMIC_LOOP(v, i, __ATOMIC_ADD, __ATOMIC_BARRIER) + i; } static inline void atomic_add(int i, atomic_t *v) @@ -94,12 +101,10 @@ static inline void atomic_add(int i, atomic_t *v) : "+Q" (v->counter) : "i" (i) : "cc", "memory"); - } else { - atomic_add_return(i, v); + return; } -#else - atomic_add_return(i, v); #endif + __ATOMIC_LOOP(v, i, __ATOMIC_ADD, __ATOMIC_NO_BARRIER); } #define atomic_add_negative(_i, _v) (atomic_add_return(_i, _v) < 0) @@ -115,12 +120,12 @@ static inline void atomic_add(int i, atomic_t *v) static inline void atomic_clear_mask(unsigned int mask, atomic_t *v) { - __ATOMIC_LOOP(v, ~mask, __ATOMIC_AND); + __ATOMIC_LOOP(v, ~mask, __ATOMIC_AND, __ATOMIC_NO_BARRIER); } static inline void atomic_set_mask(unsigned int mask, atomic_t *v) { - __ATOMIC_LOOP(v, mask, __ATOMIC_OR); + __ATOMIC_LOOP(v, mask, __ATOMIC_OR, __ATOMIC_NO_BARRIER); } #define atomic_xchg(v, new) (xchg(&((v)->counter), new)) @@ -157,19 +162,24 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u) #ifdef CONFIG_64BIT +#define __ATOMIC64_NO_BARRIER "\n" + #ifdef CONFIG_HAVE_MARCH_Z196_FEATURES #define __ATOMIC64_OR "laog" #define __ATOMIC64_AND "lang" #define __ATOMIC64_ADD "laag" +#define __ATOMIC64_BARRIER "bcr 14,0\n" -#define __ATOMIC64_LOOP(ptr, op_val, op_string) \ +#define __ATOMIC64_LOOP(ptr, op_val, op_string, __barrier) \ ({ \ long long old_val; \ \ typecheck(atomic64_t *, ptr); \ asm volatile( \ + __barrier \ op_string " %0,%2,%1\n" \ + __barrier \ : "=d" (old_val), "+Q" ((ptr)->counter) \ : "d" (op_val) \ : "cc", "memory"); \ @@ -181,8 +191,9 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u) #define __ATOMIC64_OR "ogr" #define __ATOMIC64_AND "ngr" #define __ATOMIC64_ADD "agr" +#define __ATOMIC64_BARRIER "\n" -#define __ATOMIC64_LOOP(ptr, op_val, op_string) \ +#define __ATOMIC64_LOOP(ptr, op_val, op_string, __barrier) \ ({ \ long long old_val, new_val; \ \ @@ -220,17 +231,32 @@ static inline void atomic64_set(atomic64_t *v, long long i) static inline long long atomic64_add_return(long long i, atomic64_t *v) { - return __ATOMIC64_LOOP(v, i, __ATOMIC64_ADD) + i; + return __ATOMIC64_LOOP(v, i, __ATOMIC64_ADD, __ATOMIC64_BARRIER) + i; +} + +static inline void atomic64_add(long long i, atomic64_t *v) +{ +#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES + if (__builtin_constant_p(i) && (i > -129) && (i < 128)) { + asm volatile( + "agsi %0,%1\n" + : "+Q" (v->counter) + : "i" (i) + : "cc", "memory"); + return; + } +#endif + __ATOMIC64_LOOP(v, i, __ATOMIC64_ADD, __ATOMIC64_NO_BARRIER); } static inline void atomic64_clear_mask(unsigned long mask, atomic64_t *v) { - __ATOMIC64_LOOP(v, ~mask, __ATOMIC64_AND); + __ATOMIC64_LOOP(v, ~mask, __ATOMIC64_AND, __ATOMIC64_NO_BARRIER); } static inline void atomic64_set_mask(unsigned long mask, atomic64_t *v) { - __ATOMIC64_LOOP(v, mask, __ATOMIC64_OR); + __ATOMIC64_LOOP(v, mask, __ATOMIC64_OR, __ATOMIC64_NO_BARRIER); } #define atomic64_xchg(v, new) (xchg(&((v)->counter), new)) @@ -334,25 +360,13 @@ static inline void atomic64_clear_mask(unsigned long long mask, atomic64_t *v) } while (atomic64_cmpxchg(v, old, new) != old); } -#endif /* CONFIG_64BIT */ - static inline void atomic64_add(long long i, atomic64_t *v) { -#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES - if (__builtin_constant_p(i) && (i > -129) && (i < 128)) { - asm volatile( - "agsi %0,%1\n" - : "+Q" (v->counter) - : "i" (i) - : "cc", "memory"); - } else { - atomic64_add_return(i, v); - } -#else atomic64_add_return(i, v); -#endif } +#endif /* CONFIG_64BIT */ + static inline int atomic64_add_unless(atomic64_t *v, long long i, long long u) { long long c, old; diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h index 16760eeb79b0..578680f6207a 100644 --- a/arch/s390/include/asm/barrier.h +++ b/arch/s390/include/asm/barrier.h @@ -32,4 +32,19 @@ #define set_mb(var, value) do { var = value; mb(); } while (0) +#define smp_store_release(p, v) \ +do { \ + compiletime_assert_atomic_type(*p); \ + barrier(); \ + ACCESS_ONCE(*p) = (v); \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = ACCESS_ONCE(*p); \ + compiletime_assert_atomic_type(*p); \ + barrier(); \ + ___p1; \ +}) + #endif /* __ASM_BARRIER_H */ diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h index 6e6ad0680829..520542477678 100644 --- a/arch/s390/include/asm/bitops.h +++ b/arch/s390/include/asm/bitops.h @@ -13,9 +13,9 @@ * * The bitop functions are defined to work on unsigned longs, so for an * s390x system the bits end up numbered: - * |63..............0|127............64|191...........128|255...........196| + * |63..............0|127............64|191...........128|255...........192| * and on s390: - * |31.....0|63....31|95....64|127...96|159..128|191..160|223..192|255..224| + * |31.....0|63....32|95....64|127...96|159..128|191..160|223..192|255..224| * * There are a few little-endian macros used mostly for filesystem * bitmaps, these work on similar bit arrays layouts, but @@ -30,7 +30,7 @@ * on an s390x system the bits are numbered: * |0..............63|64............127|128...........191|192...........255| * and on s390: - * |0.....31|31....63|64....95|96...127|128..159|160..191|192..223|224..255| + * |0.....31|32....63|64....95|96...127|128..159|160..191|192..223|224..255| * * The main difference is that bit 0-63 (64b) or 0-31 (32b) in the bit * number field needs to be reversed compared to the LSB0 encoded bit @@ -47,14 +47,18 @@ #include <linux/typecheck.h> #include <linux/compiler.h> +#include <asm/barrier.h> + +#define __BITOPS_NO_BARRIER "\n" #ifndef CONFIG_64BIT #define __BITOPS_OR "or" #define __BITOPS_AND "nr" #define __BITOPS_XOR "xr" +#define __BITOPS_BARRIER "\n" -#define __BITOPS_LOOP(__addr, __val, __op_string) \ +#define __BITOPS_LOOP(__addr, __val, __op_string, __barrier) \ ({ \ unsigned long __old, __new; \ \ @@ -67,7 +71,7 @@ " jl 0b" \ : "=&d" (__old), "=&d" (__new), "+Q" (*(__addr))\ : "d" (__val) \ - : "cc"); \ + : "cc", "memory"); \ __old; \ }) @@ -78,17 +82,20 @@ #define __BITOPS_OR "laog" #define __BITOPS_AND "lang" #define __BITOPS_XOR "laxg" +#define __BITOPS_BARRIER "bcr 14,0\n" -#define __BITOPS_LOOP(__addr, __val, __op_string) \ +#define __BITOPS_LOOP(__addr, __val, __op_string, __barrier) \ ({ \ unsigned long __old; \ \ typecheck(unsigned long *, (__addr)); \ asm volatile( \ + __barrier \ __op_string " %0,%2,%1\n" \ + __barrier \ : "=d" (__old), "+Q" (*(__addr)) \ : "d" (__val) \ - : "cc"); \ + : "cc", "memory"); \ __old; \ }) @@ -97,8 +104,9 @@ #define __BITOPS_OR "ogr" #define __BITOPS_AND "ngr" #define __BITOPS_XOR "xgr" +#define __BITOPS_BARRIER "\n" -#define __BITOPS_LOOP(__addr, __val, __op_string) \ +#define __BITOPS_LOOP(__addr, __val, __op_string, __barrier) \ ({ \ unsigned long __old, __new; \ \ @@ -111,7 +119,7 @@ " jl 0b" \ : "=&d" (__old), "=&d" (__new), "+Q" (*(__addr))\ : "d" (__val) \ - : "cc"); \ + : "cc", "memory"); \ __old; \ }) @@ -149,12 +157,12 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *ptr) "oi %0,%b1\n" : "+Q" (*caddr) : "i" (1 << (nr & 7)) - : "cc"); + : "cc", "memory"); return; } #endif mask = 1UL << (nr & (BITS_PER_LONG - 1)); - __BITOPS_LOOP(addr, mask, __BITOPS_OR); + __BITOPS_LOOP(addr, mask, __BITOPS_OR, __BITOPS_NO_BARRIER); } static inline void clear_bit(unsigned long nr, volatile unsigned long *ptr) @@ -170,12 +178,12 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *ptr) "ni %0,%b1\n" : "+Q" (*caddr) : "i" (~(1 << (nr & 7))) - : "cc"); + : "cc", "memory"); return; } #endif mask = ~(1UL << (nr & (BITS_PER_LONG - 1))); - __BITOPS_LOOP(addr, mask, __BITOPS_AND); + __BITOPS_LOOP(addr, mask, __BITOPS_AND, __BITOPS_NO_BARRIER); } static inline void change_bit(unsigned long nr, volatile unsigned long *ptr) @@ -191,12 +199,12 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *ptr) "xi %0,%b1\n" : "+Q" (*caddr) : "i" (1 << (nr & 7)) - : "cc"); + : "cc", "memory"); return; } #endif mask = 1UL << (nr & (BITS_PER_LONG - 1)); - __BITOPS_LOOP(addr, mask, __BITOPS_XOR); + __BITOPS_LOOP(addr, mask, __BITOPS_XOR, __BITOPS_NO_BARRIER); } static inline int @@ -206,8 +214,7 @@ test_and_set_bit(unsigned long nr, volatile unsigned long *ptr) unsigned long old, mask; mask = 1UL << (nr & (BITS_PER_LONG - 1)); - old = __BITOPS_LOOP(addr, mask, __BITOPS_OR); - barrier(); + old = __BITOPS_LOOP(addr, mask, __BITOPS_OR, __BITOPS_BARRIER); return (old & mask) != 0; } @@ -218,8 +225,7 @@ test_and_clear_bit(unsigned long nr, volatile unsigned long *ptr) unsigned long old, mask; mask = ~(1UL << (nr & (BITS_PER_LONG - 1))); - old = __BITOPS_LOOP(addr, mask, __BITOPS_AND); - barrier(); + old = __BITOPS_LOOP(addr, mask, __BITOPS_AND, __BITOPS_BARRIER); return (old & ~mask) != 0; } @@ -230,8 +236,7 @@ test_and_change_bit(unsigned long nr, volatile unsigned long *ptr) unsigned long old, mask; mask = 1UL << (nr & (BITS_PER_LONG - 1)); - old = __BITOPS_LOOP(addr, mask, __BITOPS_XOR); - barrier(); + old = __BITOPS_LOOP(addr, mask, __BITOPS_XOR, __BITOPS_BARRIER); return (old & mask) != 0; } @@ -304,7 +309,7 @@ static inline int test_bit(unsigned long nr, const volatile unsigned long *ptr) * On an s390x system the bits are numbered: * |0..............63|64............127|128...........191|192...........255| * and on s390: - * |0.....31|31....63|64....95|96...127|128..159|160..191|192..223|224..255| + * |0.....31|32....63|64....95|96...127|128..159|160..191|192..223|224..255| */ unsigned long find_first_bit_inv(const unsigned long *addr, unsigned long size); unsigned long find_next_bit_inv(const unsigned long *addr, unsigned long size, diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index f201af8be580..a9c2c0686177 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -219,7 +219,9 @@ extern void ccw_device_get_id(struct ccw_device *, struct ccw_dev_id *); #define to_ccwdev(n) container_of(n, struct ccw_device, dev) #define to_ccwdrv(n) container_of(n, struct ccw_driver, driver) -extern struct ccw_device *ccw_device_probe_console(void); +extern struct ccw_device *ccw_device_create_console(struct ccw_driver *); +extern void ccw_device_destroy_console(struct ccw_device *); +extern int ccw_device_enable_console(struct ccw_device *); extern void ccw_device_wait_idle(struct ccw_device *); extern int ccw_device_force_console(struct ccw_device *); diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h index 23723ce5ca7a..6e670f88d125 100644 --- a/arch/s390/include/asm/ccwgroup.h +++ b/arch/s390/include/asm/ccwgroup.h @@ -23,6 +23,7 @@ struct ccwgroup_device { unsigned int count; struct device dev; struct ccw_device *cdev[0]; + struct work_struct ungroup_work; }; /** diff --git a/arch/s390/include/asm/checksum.h b/arch/s390/include/asm/checksum.h index 4f57a4f3909a..740364856355 100644 --- a/arch/s390/include/asm/checksum.h +++ b/arch/s390/include/asm/checksum.h @@ -44,22 +44,15 @@ csum_partial(const void *buff, int len, __wsum sum) * here even more important to align src and dst on a 32-bit (or even * better 64-bit) boundary * - * Copy from userspace and compute checksum. If we catch an exception - * then zero the rest of the buffer. + * Copy from userspace and compute checksum. */ static inline __wsum csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr) { - int missing; - - missing = copy_from_user(dst, src, len); - if (missing) { - memset(dst + len - missing, 0, missing); + if (unlikely(copy_from_user(dst, src, len))) *err_ptr = -EFAULT; - } - return csum_partial(dst, len, sum); } diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h index d42625053c37..096339207764 100644 --- a/arch/s390/include/asm/cio.h +++ b/arch/s390/include/asm/cio.h @@ -199,7 +199,7 @@ struct esw_eadm { /** * struct irb - interruption response block * @scsw: subchannel status word - * @esw: extened status word + * @esw: extended status word * @ecw: extended control word * * The irb that is handed to the device driver when an interrupt occurs. For diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h index 0f636cbdf342..4236408070e5 100644 --- a/arch/s390/include/asm/cmpxchg.h +++ b/arch/s390/include/asm/cmpxchg.h @@ -185,11 +185,12 @@ static inline unsigned long long __cmpxchg64(void *ptr, { register_pair rp_old = {.pair = old}; register_pair rp_new = {.pair = new}; + unsigned long long *ullptr = ptr; asm volatile( " cds %0,%2,%1" - : "+&d" (rp_old), "=Q" (ptr) - : "d" (rp_new), "Q" (ptr) + : "+d" (rp_old), "+Q" (*ullptr) + : "d" (rp_new) : "memory", "cc"); return rp_old.pair; } diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h index 4bf9da03591e..d350ed9d0fbb 100644 --- a/arch/s390/include/asm/compat.h +++ b/arch/s390/include/asm/compat.h @@ -8,7 +8,11 @@ #include <linux/thread_info.h> #define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p(typeof(0?(t)0:0ULL), u64)) -#define __SC_DELOUSE(t,v) (t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v)) + +#define __SC_DELOUSE(t,v) ({ \ + BUILD_BUG_ON(sizeof(t) > 4 && !__TYPE_IS_PTR(t)); \ + (t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v)); \ +}) #define PSW32_MASK_PER 0x40000000UL #define PSW32_MASK_DAT 0x04000000UL @@ -38,7 +42,8 @@ #define PSW32_USER_BITS (PSW32_MASK_DAT | PSW32_MASK_IO | PSW32_MASK_EXT | \ PSW32_DEFAULT_KEY | PSW32_MASK_BASE | \ - PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | PSW32_ASC_HOME) + PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | \ + PSW32_ASC_PRIMARY) #define COMPAT_USER_HZ 100 #define COMPAT_UTS_MACHINE "s390\0\0\0\0" diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h index c879fad404c8..cb700d54bd83 100644 --- a/arch/s390/include/asm/cpu_mf.h +++ b/arch/s390/include/asm/cpu_mf.h @@ -56,6 +56,96 @@ struct cpumf_ctr_info { u32 reserved2[12]; } __packed; +/* QUERY SAMPLING INFORMATION block */ +struct hws_qsi_info_block { /* Bit(s) */ + unsigned int b0_13:14; /* 0-13: zeros */ + unsigned int as:1; /* 14: basic-sampling authorization */ + unsigned int ad:1; /* 15: diag-sampling authorization */ + unsigned int b16_21:6; /* 16-21: zeros */ + unsigned int es:1; /* 22: basic-sampling enable control */ + unsigned int ed:1; /* 23: diag-sampling enable control */ + unsigned int b24_29:6; /* 24-29: zeros */ + unsigned int cs:1; /* 30: basic-sampling activation control */ + unsigned int cd:1; /* 31: diag-sampling activation control */ + unsigned int bsdes:16; /* 4-5: size of basic sampling entry */ + unsigned int dsdes:16; /* 6-7: size of diagnostic sampling entry */ + unsigned long min_sampl_rate; /* 8-15: minimum sampling interval */ + unsigned long max_sampl_rate; /* 16-23: maximum sampling interval*/ + unsigned long tear; /* 24-31: TEAR contents */ + unsigned long dear; /* 32-39: DEAR contents */ + unsigned int rsvrd0; /* 40-43: reserved */ + unsigned int cpu_speed; /* 44-47: CPU speed */ + unsigned long long rsvrd1; /* 48-55: reserved */ + unsigned long long rsvrd2; /* 56-63: reserved */ +} __packed; + +/* SET SAMPLING CONTROLS request block */ +struct hws_lsctl_request_block { + unsigned int s:1; /* 0: maximum buffer indicator */ + unsigned int h:1; /* 1: part. level reserved for VM use*/ + unsigned long long b2_53:52;/* 2-53: zeros */ + unsigned int es:1; /* 54: basic-sampling enable control */ + unsigned int ed:1; /* 55: diag-sampling enable control */ + unsigned int b56_61:6; /* 56-61: - zeros */ + unsigned int cs:1; /* 62: basic-sampling activation control */ + unsigned int cd:1; /* 63: diag-sampling activation control */ + unsigned long interval; /* 8-15: sampling interval */ + unsigned long tear; /* 16-23: TEAR contents */ + unsigned long dear; /* 24-31: DEAR contents */ + /* 32-63: */ + unsigned long rsvrd1; /* reserved */ + unsigned long rsvrd2; /* reserved */ + unsigned long rsvrd3; /* reserved */ + unsigned long rsvrd4; /* reserved */ +} __packed; + +struct hws_basic_entry { + unsigned int def:16; /* 0-15 Data Entry Format */ + unsigned int R:4; /* 16-19 reserved */ + unsigned int U:4; /* 20-23 Number of unique instruct. */ + unsigned int z:2; /* zeros */ + unsigned int T:1; /* 26 PSW DAT mode */ + unsigned int W:1; /* 27 PSW wait state */ + unsigned int P:1; /* 28 PSW Problem state */ + unsigned int AS:2; /* 29-30 PSW address-space control */ + unsigned int I:1; /* 31 entry valid or invalid */ + unsigned int:16; + unsigned int prim_asn:16; /* primary ASN */ + unsigned long long ia; /* Instruction Address */ + unsigned long long gpp; /* Guest Program Parameter */ + unsigned long long hpp; /* Host Program Parameter */ +} __packed; + +struct hws_diag_entry { + unsigned int def:16; /* 0-15 Data Entry Format */ + unsigned int R:14; /* 16-19 and 20-30 reserved */ + unsigned int I:1; /* 31 entry valid or invalid */ + u8 data[]; /* Machine-dependent sample data */ +} __packed; + +struct hws_combined_entry { + struct hws_basic_entry basic; /* Basic-sampling data entry */ + struct hws_diag_entry diag; /* Diagnostic-sampling data entry */ +} __packed; + +struct hws_trailer_entry { + union { + struct { + unsigned int f:1; /* 0 - Block Full Indicator */ + unsigned int a:1; /* 1 - Alert request control */ + unsigned int t:1; /* 2 - Timestamp format */ + unsigned long long:61; /* 3 - 63: Reserved */ + }; + unsigned long long flags; /* 0 - 63: All indicators */ + }; + unsigned long long overflow; /* 64 - sample Overflow count */ + unsigned char timestamp[16]; /* 16 - 31 timestamp */ + unsigned long long reserved1; /* 32 -Reserved */ + unsigned long long reserved2; /* */ + unsigned long long progusage1; /* 48 - reserved for programming use */ + unsigned long long progusage2; /* */ +} __packed; + /* Query counter information */ static inline int qctri(struct cpumf_ctr_info *info) { @@ -99,4 +189,95 @@ static inline int ecctr(u64 ctr, u64 *val) return cc; } +/* Query sampling information */ +static inline int qsi(struct hws_qsi_info_block *info) +{ + int cc; + cc = 1; + + asm volatile( + "0: .insn s,0xb2860000,0(%1)\n" + "1: lhi %0,0\n" + "2:\n" + EX_TABLE(0b, 2b) EX_TABLE(1b, 2b) + : "=d" (cc), "+a" (info) + : "m" (*info) + : "cc", "memory"); + + return cc ? -EINVAL : 0; +} + +/* Load sampling controls */ +static inline int lsctl(struct hws_lsctl_request_block *req) +{ + int cc; + + cc = 1; + asm volatile( + "0: .insn s,0xb2870000,0(%1)\n" + "1: ipm %0\n" + " srl %0,28\n" + "2:\n" + EX_TABLE(0b, 2b) EX_TABLE(1b, 2b) + : "+d" (cc), "+a" (req) + : "m" (*req) + : "cc", "memory"); + + return cc ? -EINVAL : 0; +} + +/* Sampling control helper functions */ + +#include <linux/time.h> + +static inline unsigned long freq_to_sample_rate(struct hws_qsi_info_block *qsi, + unsigned long freq) +{ + return (USEC_PER_SEC / freq) * qsi->cpu_speed; +} + +static inline unsigned long sample_rate_to_freq(struct hws_qsi_info_block *qsi, + unsigned long rate) +{ + return USEC_PER_SEC * qsi->cpu_speed / rate; +} + +#define SDB_TE_ALERT_REQ_MASK 0x4000000000000000UL +#define SDB_TE_BUFFER_FULL_MASK 0x8000000000000000UL + +/* Return TOD timestamp contained in an trailer entry */ +static inline unsigned long long trailer_timestamp(struct hws_trailer_entry *te) +{ + /* TOD in STCKE format */ + if (te->t) + return *((unsigned long long *) &te->timestamp[1]); + + /* TOD in STCK format */ + return *((unsigned long long *) &te->timestamp[0]); +} + +/* Return pointer to trailer entry of an sample data block */ +static inline unsigned long *trailer_entry_ptr(unsigned long v) +{ + void *ret; + + ret = (void *) v; + ret += PAGE_SIZE; + ret -= sizeof(struct hws_trailer_entry); + + return (unsigned long *) ret; +} + +/* Return if the entry in the sample data block table (sdbt) + * is a link to the next sdbt */ +static inline int is_link_entry(unsigned long *s) +{ + return *s & 0x1ul ? 1 : 0; +} + +/* Return pointer to the linked sdbt */ +static inline unsigned long *get_next_sdbt(unsigned long *s) +{ + return (unsigned long *) (*s & ~0x1ul); +} #endif /* _ASM_S390_CPU_MF_H */ diff --git a/arch/s390/include/asm/css_chars.h b/arch/s390/include/asm/css_chars.h index 7e1c917bbba2..09d1dd46bd57 100644 --- a/arch/s390/include/asm/css_chars.h +++ b/arch/s390/include/asm/css_chars.h @@ -29,6 +29,8 @@ struct css_general_char { u32 fcx : 1; /* bit 88 */ u32 : 19; u32 alt_ssi : 1; /* bit 108 */ + u32:1; + u32 narf:1; /* bit 110 */ } __packed; extern struct css_general_char css_general_characteristics; diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h index 51bcaa0fdeef..69cf5b5eddc9 100644 --- a/arch/s390/include/asm/futex.h +++ b/arch/s390/include/asm/futex.h @@ -1,23 +1,63 @@ #ifndef _ASM_S390_FUTEX_H #define _ASM_S390_FUTEX_H -#include <linux/futex.h> #include <linux/uaccess.h> +#include <linux/futex.h> +#include <asm/mmu_context.h> #include <asm/errno.h> -static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr) +#define __futex_atomic_op(insn, ret, oldval, newval, uaddr, oparg) \ + asm volatile( \ + " sacf 256\n" \ + "0: l %1,0(%6)\n" \ + "1:"insn \ + "2: cs %1,%2,0(%6)\n" \ + "3: jl 1b\n" \ + " lhi %0,0\n" \ + "4: sacf 768\n" \ + EX_TABLE(0b,4b) EX_TABLE(2b,4b) EX_TABLE(3b,4b) \ + : "=d" (ret), "=&d" (oldval), "=&d" (newval), \ + "=m" (*uaddr) \ + : "0" (-EFAULT), "d" (oparg), "a" (uaddr), \ + "m" (*uaddr) : "cc"); + +static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr) { int op = (encoded_op >> 28) & 7; int cmp = (encoded_op >> 24) & 15; int oparg = (encoded_op << 8) >> 20; int cmparg = (encoded_op << 20) >> 20; - int oldval, ret; + int oldval = 0, newval, ret; + update_primary_asce(current); if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) oparg = 1 << oparg; pagefault_disable(); - ret = uaccess.futex_atomic_op(op, uaddr, oparg, &oldval); + switch (op) { + case FUTEX_OP_SET: + __futex_atomic_op("lr %2,%5\n", + ret, oldval, newval, uaddr, oparg); + break; + case FUTEX_OP_ADD: + __futex_atomic_op("lr %2,%1\nar %2,%5\n", + ret, oldval, newval, uaddr, oparg); + break; + case FUTEX_OP_OR: + __futex_atomic_op("lr %2,%1\nor %2,%5\n", + ret, oldval, newval, uaddr, oparg); + break; + case FUTEX_OP_ANDN: + __futex_atomic_op("lr %2,%1\nnr %2,%5\n", + ret, oldval, newval, uaddr, oparg); + break; + case FUTEX_OP_XOR: + __futex_atomic_op("lr %2,%1\nxr %2,%5\n", + ret, oldval, newval, uaddr, oparg); + break; + default: + ret = -ENOSYS; + } pagefault_enable(); if (!ret) { @@ -37,7 +77,20 @@ static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr) static inline int futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, u32 oldval, u32 newval) { - return uaccess.futex_atomic_cmpxchg(uval, uaddr, oldval, newval); + int ret; + + update_primary_asce(current); + asm volatile( + " sacf 256\n" + "0: cs %1,%4,0(%5)\n" + "1: la %0,0\n" + "2: sacf 768\n" + EX_TABLE(0b,2b) EX_TABLE(1b,2b) + : "=d" (ret), "+d" (oldval), "=m" (*uaddr) + : "0" (-EFAULT), "d" (newval), "a" (uaddr), "m" (*uaddr) + : "cc", "memory"); + *uval = oldval; + return ret; } #endif /* _ASM_S390_FUTEX_H */ diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h index 5f8bcc5fe423..c4dd400a2791 100644 --- a/arch/s390/include/asm/irq.h +++ b/arch/s390/include/asm/irq.h @@ -16,6 +16,20 @@ /* This number is used when no interrupt has been assigned */ #define NO_IRQ 0 +/* External interruption codes */ +#define EXT_IRQ_INTERRUPT_KEY 0x0040 +#define EXT_IRQ_CLK_COMP 0x1004 +#define EXT_IRQ_CPU_TIMER 0x1005 +#define EXT_IRQ_WARNING_TRACK 0x1007 +#define EXT_IRQ_MALFUNC_ALERT 0x1200 +#define EXT_IRQ_EMERGENCY_SIG 0x1201 +#define EXT_IRQ_EXTERNAL_CALL 0x1202 +#define EXT_IRQ_TIMING_ALERT 0x1406 +#define EXT_IRQ_MEASURE_ALERT 0x1407 +#define EXT_IRQ_SERVICE_SIG 0x2401 +#define EXT_IRQ_CP_SERVICE 0x2603 +#define EXT_IRQ_IUCV 0x4000 + #ifndef __ASSEMBLY__ #include <linux/hardirq.h> @@ -53,6 +67,7 @@ enum interruption_class { IRQIO_PCI, IRQIO_MSI, IRQIO_VIR, + IRQIO_VAI, NMI_NMI, CPU_RST, NR_ARCH_IRQS @@ -76,8 +91,8 @@ struct ext_code { typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long); -int register_external_interrupt(u16 code, ext_int_handler_t handler); -int unregister_external_interrupt(u16 code, ext_int_handler_t handler); +int register_external_irq(u16 code, ext_int_handler_t handler); +int unregister_external_irq(u16 code, ext_int_handler_t handler); enum irq_subclass { IRQ_SUBCLASS_MEASUREMENT_ALERT = 5, diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index d5bc3750616e..154b60089be9 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -16,12 +16,22 @@ #include <linux/hrtimer.h> #include <linux/interrupt.h> #include <linux/kvm_host.h> +#include <linux/kvm.h> #include <asm/debug.h> #include <asm/cpu.h> +#include <asm/isc.h> #define KVM_MAX_VCPUS 64 #define KVM_USER_MEM_SLOTS 32 +/* + * These seem to be used for allocating ->chip in the routing table, + * which we don't use. 4096 is an out-of-thin-air value. If we need + * to look at ->chip later on, we'll need to revisit this. + */ +#define KVM_NR_IRQCHIPS 1 +#define KVM_IRQCHIP_NUM_PINS 4096 + struct sca_entry { atomic_t scn; __u32 reserved; @@ -106,9 +116,26 @@ struct kvm_s390_sie_block { __u64 gbea; /* 0x0180 */ __u8 reserved188[24]; /* 0x0188 */ __u32 fac; /* 0x01a0 */ - __u8 reserved1a4[92]; /* 0x01a4 */ + __u8 reserved1a4[20]; /* 0x01a4 */ + __u64 cbrlo; /* 0x01b8 */ + __u8 reserved1c0[30]; /* 0x01c0 */ + __u64 pp; /* 0x01de */ + __u8 reserved1e6[2]; /* 0x01e6 */ + __u64 itdba; /* 0x01e8 */ + __u8 reserved1f0[16]; /* 0x01f0 */ } __attribute__((packed)); +struct kvm_s390_itdb { + __u8 data[256]; +} __packed; + +struct sie_page { + struct kvm_s390_sie_block sie_block; + __u8 reserved200[1024]; /* 0x0200 */ + struct kvm_s390_itdb itdb; /* 0x0600 */ + __u8 reserved700[2304]; /* 0x0700 */ +} __packed; + struct kvm_vcpu_stat { u32 exit_userspace; u32 exit_null; @@ -142,6 +169,7 @@ struct kvm_vcpu_stat { u32 instruction_stsi; u32 instruction_stfl; u32 instruction_tprot; + u32 instruction_essa; u32 instruction_sigp_sense; u32 instruction_sigp_sense_running; u32 instruction_sigp_external_call; @@ -155,18 +183,6 @@ struct kvm_vcpu_stat { u32 diagnose_9c; }; -struct kvm_s390_io_info { - __u16 subchannel_id; /* 0x0b8 */ - __u16 subchannel_nr; /* 0x0ba */ - __u32 io_int_parm; /* 0x0bc */ - __u32 io_int_word; /* 0x0c0 */ -}; - -struct kvm_s390_ext_info { - __u32 ext_params; - __u64 ext_params2; -}; - #define PGM_OPERATION 0x01 #define PGM_PRIVILEGED_OP 0x02 #define PGM_EXECUTE 0x03 @@ -175,27 +191,6 @@ struct kvm_s390_ext_info { #define PGM_SPECIFICATION 0x06 #define PGM_DATA 0x07 -struct kvm_s390_pgm_info { - __u16 code; -}; - -struct kvm_s390_prefix_info { - __u32 address; -}; - -struct kvm_s390_extcall_info { - __u16 code; -}; - -struct kvm_s390_emerg_info { - __u16 code; -}; - -struct kvm_s390_mchk_info { - __u64 cr14; - __u64 mcic; -}; - struct kvm_s390_interrupt_info { struct list_head list; u64 type; @@ -230,9 +225,8 @@ struct kvm_s390_float_interrupt { struct list_head list; atomic_t active; int next_rr_cpu; - unsigned long idle_mask[(KVM_MAX_VCPUS + sizeof(long) - 1) - / sizeof(long)]; - struct kvm_s390_local_interrupt *local_int[KVM_MAX_VCPUS]; + unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)]; + unsigned int irq_count; }; @@ -249,6 +243,10 @@ struct kvm_vcpu_arch { u64 stidp_data; }; struct gmap *gmap; +#define KVM_S390_PFAULT_TOKEN_INVALID (-1UL) + unsigned long pfault_token; + unsigned long pfault_select; + unsigned long pfault_compare; }; struct kvm_vm_stat { @@ -258,12 +256,36 @@ struct kvm_vm_stat { struct kvm_arch_memory_slot { }; +struct s390_map_info { + struct list_head list; + __u64 guest_addr; + __u64 addr; + struct page *page; +}; + +struct s390_io_adapter { + unsigned int id; + int isc; + bool maskable; + bool masked; + bool swap; + struct rw_semaphore maps_lock; + struct list_head maps; + atomic_t nr_maps; +}; + +#define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) +#define MAX_S390_ADAPTER_MAPS 256 + struct kvm_arch{ struct sca_block *sca; debug_info_t *dbf; struct kvm_s390_float_interrupt float_int; + struct kvm_device *flic; struct gmap *gmap; int css_support; + int use_irqchip; + struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; }; #define KVM_HVA_ERR_BAD (-1UL) @@ -274,6 +296,24 @@ static inline bool kvm_is_error_hva(unsigned long addr) return IS_ERR_VALUE(addr); } +#define ASYNC_PF_PER_VCPU 64 +struct kvm_vcpu; +struct kvm_async_pf; +struct kvm_arch_async_pf { + unsigned long pfault_token; +}; + +bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu); + +void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, + struct kvm_async_pf *work); + +void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, + struct kvm_async_pf *work); + +void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, + struct kvm_async_pf *work); + extern int sie64a(struct kvm_s390_sie_block *, u64 *); extern char sie_exit; #endif diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h index ff132ac64ddd..f77695a82f64 100644 --- a/arch/s390/include/asm/mmu.h +++ b/arch/s390/include/asm/mmu.h @@ -1,9 +1,11 @@ #ifndef __MMU_H #define __MMU_H +#include <linux/cpumask.h> #include <linux/errno.h> typedef struct { + cpumask_t cpu_attach_mask; atomic_t attach_count; unsigned int flush_mm; spinlock_t list_lock; diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h index 5d1f950704dc..71be346d0e3c 100644 --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -15,6 +15,7 @@ static inline int init_new_context(struct task_struct *tsk, struct mm_struct *mm) { + cpumask_clear(&mm->context.cpu_attach_mask); atomic_set(&mm->context.attach_count, 0); mm->context.flush_mm = 0; mm->context.asce_bits = _ASCE_TABLE_LENGTH | _ASCE_USER_BITS; @@ -29,32 +30,81 @@ static inline int init_new_context(struct task_struct *tsk, #define destroy_context(mm) do { } while (0) -#ifndef CONFIG_64BIT -#define LCTL_OPCODE "lctl" -#else -#define LCTL_OPCODE "lctlg" -#endif - -static inline void update_mm(struct mm_struct *mm, struct task_struct *tsk) +static inline void update_user_asce(struct mm_struct *mm, int load_primary) { pgd_t *pgd = mm->pgd; S390_lowcore.user_asce = mm->context.asce_bits | __pa(pgd); - /* Load primary space page table origin. */ - asm volatile(LCTL_OPCODE" 1,1,%0\n" : : "m" (S390_lowcore.user_asce)); + if (load_primary) + __ctl_load(S390_lowcore.user_asce, 1, 1); set_fs(current->thread.mm_segment); } +static inline void clear_user_asce(struct mm_struct *mm, int load_primary) +{ + S390_lowcore.user_asce = S390_lowcore.kernel_asce; + + if (load_primary) + __ctl_load(S390_lowcore.user_asce, 1, 1); + __ctl_load(S390_lowcore.user_asce, 7, 7); +} + +static inline void update_primary_asce(struct task_struct *tsk) +{ + unsigned long asce; + + __ctl_store(asce, 1, 1); + if (asce != S390_lowcore.kernel_asce) + __ctl_load(S390_lowcore.kernel_asce, 1, 1); + set_tsk_thread_flag(tsk, TIF_ASCE); +} + static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk) { - cpumask_set_cpu(smp_processor_id(), mm_cpumask(next)); - update_mm(next, tsk); + int cpu = smp_processor_id(); + + update_primary_asce(tsk); + if (prev == next) + return; + if (MACHINE_HAS_TLB_LC) + cpumask_set_cpu(cpu, &next->context.cpu_attach_mask); + if (atomic_inc_return(&next->context.attach_count) >> 16) { + /* Delay update_user_asce until all TLB flushes are done. */ + set_tsk_thread_flag(tsk, TIF_TLB_WAIT); + /* Clear old ASCE by loading the kernel ASCE. */ + clear_user_asce(next, 0); + } else { + cpumask_set_cpu(cpu, mm_cpumask(next)); + update_user_asce(next, 0); + if (next->context.flush_mm) + /* Flush pending TLBs */ + __tlb_flush_mm(next); + } atomic_dec(&prev->context.attach_count); WARN_ON(atomic_read(&prev->context.attach_count) < 0); - atomic_inc(&next->context.attach_count); - /* Check for TLBs not flushed yet */ - __tlb_flush_mm_lazy(next); + if (MACHINE_HAS_TLB_LC) + cpumask_clear_cpu(cpu, &prev->context.cpu_attach_mask); +} + +#define finish_arch_post_lock_switch finish_arch_post_lock_switch +static inline void finish_arch_post_lock_switch(void) +{ + struct task_struct *tsk = current; + struct mm_struct *mm = tsk->mm; + + if (!test_tsk_thread_flag(tsk, TIF_TLB_WAIT)) + return; + preempt_disable(); + clear_tsk_thread_flag(tsk, TIF_TLB_WAIT); + while (atomic_read(&mm->context.attach_count) >> 16) + cpu_relax(); + + cpumask_set_cpu(smp_processor_id(), mm_cpumask(mm)); + update_user_asce(mm, 0); + if (mm->context.flush_mm) + __tlb_flush_mm(mm); + preempt_enable(); } #define enter_lazy_tlb(mm,tsk) do { } while (0) diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index c129ab2ac731..2583466f576b 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -144,6 +144,7 @@ int clp_disable_fh(struct zpci_dev *); void zpci_event_error(void *); void zpci_event_availability(void *); void zpci_rescan(void); +bool zpci_is_enabled(void); #else /* CONFIG_PCI */ static inline void zpci_event_error(void *e) {} static inline void zpci_event_availability(void *e) {} diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h index 1141fb3e7b21..159a8ec6da9a 100644 --- a/arch/s390/include/asm/perf_event.h +++ b/arch/s390/include/asm/perf_event.h @@ -1,21 +1,40 @@ /* * Performance event support - s390 specific definitions. * - * Copyright IBM Corp. 2009, 2012 + * Copyright IBM Corp. 2009, 2013 * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> * Hendrik Brueckner <brueckner@linux.vnet.ibm.com> */ -#include <asm/cpu_mf.h> +#ifndef _ASM_S390_PERF_EVENT_H +#define _ASM_S390_PERF_EVENT_H -/* CPU-measurement counter facility */ -#define PERF_CPUM_CF_MAX_CTR 256 +#ifdef CONFIG_64BIT + +#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 #define PMU_F_ENABLED 0x2000 +#define PMU_F_IN_USE 0x4000 +#define PMU_F_ERR_IBE 0x0100 +#define PMU_F_ERR_LSDA 0x0200 +#define PMU_F_ERR_MASK (PMU_F_ERR_IBE|PMU_F_ERR_LSDA) + +/* Perf defintions for PMU event attributes in sysfs */ +extern __init const struct attribute_group **cpumf_cf_event_group(void); +extern ssize_t cpumf_events_sysfs_show(struct device *dev, + struct device_attribute *attr, + char *page); +#define EVENT_VAR(_cat, _name) event_attr_##_cat##_##_name +#define EVENT_PTR(_cat, _name) (&EVENT_VAR(_cat, _name).attr.attr) + +#define CPUMF_EVENT_ATTR(cat, name, id) \ + PMU_EVENT_ATTR(name, EVENT_VAR(cat, name), id, cpumf_events_sysfs_show) +#define CPUMF_EVENT_PTR(cat, name) EVENT_PTR(cat, name) -#ifdef CONFIG_64BIT /* Perf callbacks */ struct pt_regs; @@ -23,4 +42,55 @@ extern unsigned long perf_instruction_pointer(struct pt_regs *regs); extern unsigned long perf_misc_flags(struct pt_regs *regs); #define perf_misc_flags(regs) perf_misc_flags(regs) +/* Perf pt_regs extension for sample-data-entry indicators */ +struct perf_sf_sde_regs { + unsigned char in_guest:1; /* guest sample */ + unsigned long reserved:63; /* reserved */ +}; + +/* Perf PMU definitions for the counter facility */ +#define PERF_CPUM_CF_MAX_CTR 256 + +/* Perf PMU definitions for the sampling facility */ +#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_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| \ + PERF_CPUM_SF_DIAG_MODE) +#define PERF_CPUM_SF_FULL_BLOCKS 0x0004 /* Process full SDBs only */ + +#define REG_NONE 0 +#define REG_OVERFLOW 1 +#define OVERFLOW_REG(hwc) ((hwc)->extra_reg.config) +#define SFB_ALLOC_REG(hwc) ((hwc)->extra_reg.alloc) +#define RAWSAMPLE_REG(hwc) ((hwc)->config) +#define TEAR_REG(hwc) ((hwc)->last_tag) +#define SAMPL_RATE(hwc) ((hwc)->event_base) +#define SAMPL_FLAGS(hwc) ((hwc)->config_base) +#define SAMPL_DIAG_MODE(hwc) (SAMPL_FLAGS(hwc) & PERF_CPUM_SF_DIAG_MODE) +#define SDB_FULL_BLOCKS(hwc) (SAMPL_FLAGS(hwc) & PERF_CPUM_SF_FULL_BLOCKS) + +/* Structure for sampling data entries to be passed as perf raw sample data + * to user space. Note that raw sample data must be aligned and, thus, might + * be padded with zeros. + */ +struct sf_raw_sample { +#define SF_RAW_SAMPLE_BASIC PERF_CPUM_SF_BASIC_MODE +#define SF_RAW_SAMPLE_DIAG PERF_CPUM_SF_DIAG_MODE + u64 format; + u32 size; /* Size of sf_raw_sample */ + u16 bsdes; /* Basic-sampling data entry size */ + u16 dsdes; /* Diagnostic-sampling data entry size */ + struct hws_basic_entry basic; /* Basic-sampling data entry */ + struct hws_diag_entry diag; /* Diagnostic-sampling data entry */ + u8 padding[]; /* Padding to next multiple of 8 */ +} __packed; + +/* Perf hardware reserve and release functions */ +int perf_reserve_sampling(void); +void perf_release_sampling(void); + #endif /* CONFIG_64BIT */ +#endif /* _ASM_S390_PERF_EVENT_H */ diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h index e1408ddb94f8..884017cbfa9f 100644 --- a/arch/s390/include/asm/pgalloc.h +++ b/arch/s390/include/asm/pgalloc.h @@ -22,6 +22,7 @@ unsigned long *page_table_alloc(struct mm_struct *, unsigned long); void page_table_free(struct mm_struct *, unsigned long *); void page_table_free_rcu(struct mmu_gather *, unsigned long *); +void page_table_reset_pgste(struct mm_struct *, unsigned long, unsigned long); int set_guest_storage_key(struct mm_struct *mm, unsigned long addr, unsigned long key, bool nq); @@ -91,11 +92,22 @@ static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address) static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long vmaddr) { unsigned long *table = crst_table_alloc(mm); - if (table) - crst_table_init(table, _SEGMENT_ENTRY_EMPTY); + + if (!table) + return NULL; + crst_table_init(table, _SEGMENT_ENTRY_EMPTY); + if (!pgtable_pmd_page_ctor(virt_to_page(table))) { + crst_table_free(mm, table); + return NULL; + } return (pmd_t *) table; } -#define pmd_free(mm, pmd) crst_table_free(mm, (unsigned long *) pmd) + +static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) +{ + pgtable_pmd_page_dtor(virt_to_page(pmd)); + crst_table_free(mm, (unsigned long *) pmd); +} static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud) { diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 2204400d0bd5..12f75313e086 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -229,6 +229,7 @@ extern unsigned long MODULES_END; #define _PAGE_READ 0x010 /* SW pte read bit */ #define _PAGE_WRITE 0x020 /* SW pte write bit */ #define _PAGE_SPECIAL 0x040 /* SW associated with special page */ +#define _PAGE_UNUSED 0x080 /* SW bit for pgste usage state */ #define __HAVE_ARCH_PTE_SPECIAL /* Set of bits not changed in pte_modify */ @@ -394,6 +395,12 @@ extern unsigned long MODULES_END; #endif /* CONFIG_64BIT */ +/* Guest Page State used for virtualization */ +#define _PGSTE_GPS_ZERO 0x0000000080000000UL +#define _PGSTE_GPS_USAGE_MASK 0x0000000003000000UL +#define _PGSTE_GPS_USAGE_STABLE 0x0000000000000000UL +#define _PGSTE_GPS_USAGE_UNUSED 0x0000000001000000UL + /* * A user page table pointer has the space-switch-event bit, the * private-space-control bit and the storage-alteration-event-control @@ -617,6 +624,14 @@ static inline int pte_none(pte_t pte) return pte_val(pte) == _PAGE_INVALID; } +static inline int pte_swap(pte_t pte) +{ + /* Bit pattern: (pte & 0x603) == 0x402 */ + return (pte_val(pte) & (_PAGE_INVALID | _PAGE_PROTECT | + _PAGE_TYPE | _PAGE_PRESENT)) + == (_PAGE_INVALID | _PAGE_TYPE); +} + static inline int pte_file(pte_t pte) { /* Bit pattern: (pte & 0x601) == 0x600 */ @@ -767,6 +782,7 @@ static inline void pgste_set_pte(pte_t *ptep, pte_t entry) * @table: pointer to the page directory * @asce: address space control element for gmap page table * @crst_list: list of all crst tables used in the guest address space + * @pfault_enabled: defines if pfaults are applicable for the guest */ struct gmap { struct list_head list; @@ -775,6 +791,7 @@ struct gmap { unsigned long asce; void *private; struct list_head crst_list; + bool pfault_enabled; }; /** @@ -821,20 +838,20 @@ unsigned long gmap_translate(unsigned long address, struct gmap *); unsigned long __gmap_fault(unsigned long address, struct gmap *); unsigned long gmap_fault(unsigned long address, struct gmap *); void gmap_discard(unsigned long from, unsigned long to, struct gmap *); +void __gmap_zap(unsigned long address, struct gmap *); void gmap_register_ipte_notifier(struct gmap_notifier *); void gmap_unregister_ipte_notifier(struct gmap_notifier *); int gmap_ipte_notify(struct gmap *, unsigned long start, unsigned long len); -void gmap_do_ipte_notify(struct mm_struct *, unsigned long addr, pte_t *); +void gmap_do_ipte_notify(struct mm_struct *, pte_t *); static inline pgste_t pgste_ipte_notify(struct mm_struct *mm, - unsigned long addr, pte_t *ptep, pgste_t pgste) { #ifdef CONFIG_PGSTE if (pgste_val(pgste) & PGSTE_IN_BIT) { pgste_val(pgste) &= ~PGSTE_IN_BIT; - gmap_do_ipte_notify(mm, addr, ptep); + gmap_do_ipte_notify(mm, ptep); } #endif return pgste; @@ -852,6 +869,7 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, if (mm_has_pgste(mm)) { pgste = pgste_get_lock(ptep); + pgste_val(pgste) &= ~_PGSTE_GPS_ZERO; pgste_set_key(ptep, pgste, entry); pgste_set_pte(ptep, entry); pgste_set_unlock(ptep, pgste); @@ -881,6 +899,12 @@ static inline int pte_young(pte_t pte) return (pte_val(pte) & _PAGE_YOUNG) != 0; } +#define __HAVE_ARCH_PTE_UNUSED +static inline int pte_unused(pte_t pte) +{ + return pte_val(pte) & _PAGE_UNUSED; +} + /* * pgd/pmd/pte modification functions */ @@ -1034,30 +1058,64 @@ static inline int ptep_test_and_clear_user_young(struct mm_struct *mm, static inline void __ptep_ipte(unsigned long address, pte_t *ptep) { - if (!(pte_val(*ptep) & _PAGE_INVALID)) { + unsigned long pto = (unsigned long) ptep; + #ifndef CONFIG_64BIT - /* pto must point to the start of the segment table */ - pte_t *pto = (pte_t *) (((unsigned long) ptep) & 0x7ffffc00); -#else - /* ipte in zarch mode can do the math */ - pte_t *pto = ptep; + /* pto in ESA mode must point to the start of the segment table */ + pto &= 0x7ffffc00; #endif - asm volatile( - " ipte %2,%3" - : "=m" (*ptep) : "m" (*ptep), - "a" (pto), "a" (address)); - } + /* Invalidation + global TLB flush for the pte */ + asm volatile( + " ipte %2,%3" + : "=m" (*ptep) : "m" (*ptep), "a" (pto), "a" (address)); +} + +static inline void __ptep_ipte_local(unsigned long address, pte_t *ptep) +{ + unsigned long pto = (unsigned long) ptep; + +#ifndef CONFIG_64BIT + /* pto in ESA mode must point to the start of the segment table */ + pto &= 0x7ffffc00; +#endif + /* Invalidation + local TLB flush for the pte */ + asm volatile( + " .insn rrf,0xb2210000,%2,%3,0,1" + : "=m" (*ptep) : "m" (*ptep), "a" (pto), "a" (address)); +} + +static inline void ptep_flush_direct(struct mm_struct *mm, + unsigned long address, pte_t *ptep) +{ + int active, count; + + if (pte_val(*ptep) & _PAGE_INVALID) + return; + active = (mm == current->active_mm) ? 1 : 0; + count = atomic_add_return(0x10000, &mm->context.attach_count); + if (MACHINE_HAS_TLB_LC && (count & 0xffff) <= active && + cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id()))) + __ptep_ipte_local(address, ptep); + else + __ptep_ipte(address, ptep); + atomic_sub(0x10000, &mm->context.attach_count); } static inline void ptep_flush_lazy(struct mm_struct *mm, unsigned long address, pte_t *ptep) { - int active = (mm == current->active_mm) ? 1 : 0; + int active, count; - if (atomic_read(&mm->context.attach_count) > active) - __ptep_ipte(address, ptep); - else + if (pte_val(*ptep) & _PAGE_INVALID) + return; + active = (mm == current->active_mm) ? 1 : 0; + count = atomic_add_return(0x10000, &mm->context.attach_count); + if ((count & 0xffff) <= active) { + pte_val(*ptep) |= _PAGE_INVALID; mm->context.flush_mm = 1; + } else + __ptep_ipte(address, ptep); + atomic_sub(0x10000, &mm->context.attach_count); } #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG @@ -1070,11 +1128,11 @@ static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, if (mm_has_pgste(vma->vm_mm)) { pgste = pgste_get_lock(ptep); - pgste = pgste_ipte_notify(vma->vm_mm, addr, ptep, pgste); + pgste = pgste_ipte_notify(vma->vm_mm, ptep, pgste); } pte = *ptep; - __ptep_ipte(addr, ptep); + ptep_flush_direct(vma->vm_mm, addr, ptep); young = pte_young(pte); pte = pte_mkold(pte); @@ -1116,7 +1174,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, if (mm_has_pgste(mm)) { pgste = pgste_get_lock(ptep); - pgste = pgste_ipte_notify(mm, address, ptep, pgste); + pgste = pgste_ipte_notify(mm, ptep, pgste); } pte = *ptep; @@ -1140,12 +1198,11 @@ static inline pte_t ptep_modify_prot_start(struct mm_struct *mm, if (mm_has_pgste(mm)) { pgste = pgste_get_lock(ptep); - pgste_ipte_notify(mm, address, ptep, pgste); + pgste_ipte_notify(mm, ptep, pgste); } pte = *ptep; ptep_flush_lazy(mm, address, ptep); - pte_val(*ptep) |= _PAGE_INVALID; if (mm_has_pgste(mm)) { pgste = pgste_update_all(&pte, pgste); @@ -1178,14 +1235,17 @@ static inline pte_t ptep_clear_flush(struct vm_area_struct *vma, if (mm_has_pgste(vma->vm_mm)) { pgste = pgste_get_lock(ptep); - pgste = pgste_ipte_notify(vma->vm_mm, address, ptep, pgste); + pgste = pgste_ipte_notify(vma->vm_mm, ptep, pgste); } pte = *ptep; - __ptep_ipte(address, ptep); + ptep_flush_direct(vma->vm_mm, address, ptep); pte_val(*ptep) = _PAGE_INVALID; if (mm_has_pgste(vma->vm_mm)) { + if ((pgste_val(pgste) & _PGSTE_GPS_USAGE_MASK) == + _PGSTE_GPS_USAGE_UNUSED) + pte_val(pte) |= _PAGE_UNUSED; pgste = pgste_update_all(&pte, pgste); pgste_set_unlock(ptep, pgste); } @@ -1209,7 +1269,7 @@ static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, if (!full && mm_has_pgste(mm)) { pgste = pgste_get_lock(ptep); - pgste = pgste_ipte_notify(mm, address, ptep, pgste); + pgste = pgste_ipte_notify(mm, ptep, pgste); } pte = *ptep; @@ -1234,7 +1294,7 @@ static inline pte_t ptep_set_wrprotect(struct mm_struct *mm, if (pte_write(pte)) { if (mm_has_pgste(mm)) { pgste = pgste_get_lock(ptep); - pgste = pgste_ipte_notify(mm, address, ptep, pgste); + pgste = pgste_ipte_notify(mm, ptep, pgste); } ptep_flush_lazy(mm, address, ptep); @@ -1260,10 +1320,10 @@ static inline int ptep_set_access_flags(struct vm_area_struct *vma, return 0; if (mm_has_pgste(vma->vm_mm)) { pgste = pgste_get_lock(ptep); - pgste = pgste_ipte_notify(vma->vm_mm, address, ptep, pgste); + pgste = pgste_ipte_notify(vma->vm_mm, ptep, pgste); } - __ptep_ipte(address, ptep); + ptep_flush_direct(vma->vm_mm, address, ptep); if (mm_has_pgste(vma->vm_mm)) { pgste_set_pte(ptep, entry); @@ -1347,35 +1407,6 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) #define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address) #define pte_unmap(pte) do { } while (0) -static inline void __pmd_idte(unsigned long address, pmd_t *pmdp) -{ - unsigned long sto = (unsigned long) pmdp - - pmd_index(address) * sizeof(pmd_t); - - if (!(pmd_val(*pmdp) & _SEGMENT_ENTRY_INVALID)) { - asm volatile( - " .insn rrf,0xb98e0000,%2,%3,0,0" - : "=m" (*pmdp) - : "m" (*pmdp), "a" (sto), - "a" ((address & HPAGE_MASK)) - : "cc" - ); - } -} - -static inline void __pmd_csp(pmd_t *pmdp) -{ - register unsigned long reg2 asm("2") = pmd_val(*pmdp); - register unsigned long reg3 asm("3") = pmd_val(*pmdp) | - _SEGMENT_ENTRY_INVALID; - register unsigned long reg4 asm("4") = ((unsigned long) pmdp) + 5; - - asm volatile( - " csp %1,%3" - : "=m" (*pmdp) - : "d" (reg2), "d" (reg3), "d" (reg4), "m" (*pmdp) : "cc"); -} - #if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_HUGETLB_PAGE) static inline unsigned long massage_pgprot_pmd(pgprot_t pgprot) { @@ -1444,15 +1475,81 @@ static inline pmd_t pmd_mkwrite(pmd_t pmd) } #endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_HUGETLB_PAGE */ +static inline void __pmdp_csp(pmd_t *pmdp) +{ + register unsigned long reg2 asm("2") = pmd_val(*pmdp); + register unsigned long reg3 asm("3") = pmd_val(*pmdp) | + _SEGMENT_ENTRY_INVALID; + register unsigned long reg4 asm("4") = ((unsigned long) pmdp) + 5; + + asm volatile( + " csp %1,%3" + : "=m" (*pmdp) + : "d" (reg2), "d" (reg3), "d" (reg4), "m" (*pmdp) : "cc"); +} + +static inline void __pmdp_idte(unsigned long address, pmd_t *pmdp) +{ + unsigned long sto; + + sto = (unsigned long) pmdp - pmd_index(address) * sizeof(pmd_t); + asm volatile( + " .insn rrf,0xb98e0000,%2,%3,0,0" + : "=m" (*pmdp) + : "m" (*pmdp), "a" (sto), "a" ((address & HPAGE_MASK)) + : "cc" ); +} + +static inline void __pmdp_idte_local(unsigned long address, pmd_t *pmdp) +{ + unsigned long sto; + + sto = (unsigned long) pmdp - pmd_index(address) * sizeof(pmd_t); + asm volatile( + " .insn rrf,0xb98e0000,%2,%3,0,1" + : "=m" (*pmdp) + : "m" (*pmdp), "a" (sto), "a" ((address & HPAGE_MASK)) + : "cc" ); +} + +static inline void pmdp_flush_direct(struct mm_struct *mm, + unsigned long address, pmd_t *pmdp) +{ + int active, count; + + if (pmd_val(*pmdp) & _SEGMENT_ENTRY_INVALID) + return; + if (!MACHINE_HAS_IDTE) { + __pmdp_csp(pmdp); + return; + } + active = (mm == current->active_mm) ? 1 : 0; + count = atomic_add_return(0x10000, &mm->context.attach_count); + if (MACHINE_HAS_TLB_LC && (count & 0xffff) <= active && + cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id()))) + __pmdp_idte_local(address, pmdp); + else + __pmdp_idte(address, pmdp); + atomic_sub(0x10000, &mm->context.attach_count); +} + static inline void pmdp_flush_lazy(struct mm_struct *mm, unsigned long address, pmd_t *pmdp) { - int active = (mm == current->active_mm) ? 1 : 0; + int active, count; - if ((atomic_read(&mm->context.attach_count) & 0xffff) > active) - __pmd_idte(address, pmdp); - else + if (pmd_val(*pmdp) & _SEGMENT_ENTRY_INVALID) + return; + active = (mm == current->active_mm) ? 1 : 0; + count = atomic_add_return(0x10000, &mm->context.attach_count); + if ((count & 0xffff) <= active) { + pmd_val(*pmdp) |= _SEGMENT_ENTRY_INVALID; mm->context.flush_mm = 1; + } else if (MACHINE_HAS_IDTE) + __pmdp_idte(address, pmdp); + else + __pmdp_csp(pmdp); + atomic_sub(0x10000, &mm->context.attach_count); } #ifdef CONFIG_TRANSPARENT_HUGEPAGE @@ -1504,7 +1601,7 @@ static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma, pmd_t pmd; pmd = *pmdp; - __pmd_idte(address, pmdp); + pmdp_flush_direct(vma->vm_mm, address, pmdp); *pmdp = pmd_mkold(pmd); return pmd_young(pmd); } @@ -1515,7 +1612,7 @@ static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm, { pmd_t pmd = *pmdp; - __pmd_idte(address, pmdp); + pmdp_flush_direct(mm, address, pmdp); pmd_clear(pmdp); return pmd; } @@ -1531,7 +1628,7 @@ static inline pmd_t pmdp_clear_flush(struct vm_area_struct *vma, static inline void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address, pmd_t *pmdp) { - __pmd_idte(address, pmdp); + pmdp_flush_direct(vma->vm_mm, address, pmdp); } #define __HAVE_ARCH_PMDP_SET_WRPROTECT @@ -1541,7 +1638,7 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm, pmd_t pmd = *pmdp; if (pmd_write(pmd)) { - __pmd_idte(address, pmdp); + pmdp_flush_direct(mm, address, pmdp); set_pmd_at(mm, address, pmdp, pmd_wrprotect(pmd)); } } diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 0a876bc543d3..dc5fc4f90e52 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -79,6 +79,7 @@ struct thread_struct { unsigned long ksp; /* kernel stack pointer */ mm_segment_t mm_segment; unsigned long gmap_addr; /* address of last gmap fault. */ + unsigned int gmap_pfault; /* signal of a pending guest pfault */ struct per_regs per_user; /* User specified PER registers */ struct per_event per_event; /* Cause of the last PER trap */ unsigned long per_flags; /* Flags to control debug behavior */ diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h index 9c82cebddabd..f4783c0b7b43 100644 --- a/arch/s390/include/asm/ptrace.h +++ b/arch/s390/include/asm/ptrace.h @@ -83,6 +83,7 @@ struct per_struct_kernel { * These are defined as per linux/ptrace.h, which see. */ #define arch_has_single_step() (1) +#define arch_has_block_step() (1) #define user_mode(regs) (((regs)->psw.mask & PSW_MASK_PSTATE) != 0) #define instruction_pointer(regs) ((regs)->psw.addr & PSW_ADDR_INSN) diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h index 57d0d7e794b1..d786c634e052 100644 --- a/arch/s390/include/asm/qdio.h +++ b/arch/s390/include/asm/qdio.h @@ -336,7 +336,7 @@ typedef void qdio_handler_t(struct ccw_device *, unsigned int, int, #define QDIO_FLAG_CLEANUP_USING_HALT 0x02 /** - * struct qdio_initialize - qdio initalization data + * struct qdio_initialize - qdio initialization data * @cdev: associated ccw device * @q_format: queue format * @adapter_name: name for the adapter @@ -378,6 +378,34 @@ struct qdio_initialize { struct qdio_outbuf_state *output_sbal_state_array; }; +/** + * enum qdio_brinfo_entry_type - type of address entry for qdio_brinfo_desc() + * @l3_ipv6_addr: entry contains IPv6 address + * @l3_ipv4_addr: entry contains IPv4 address + * @l2_addr_lnid: entry contains MAC address and VLAN ID + */ +enum qdio_brinfo_entry_type {l3_ipv6_addr, l3_ipv4_addr, l2_addr_lnid}; + +/** + * struct qdio_brinfo_entry_XXX - Address entry for qdio_brinfo_desc() + * @nit: Network interface token + * @addr: Address of one of the three types + * + * The struct is passed to the callback function by qdio_brinfo_desc() + */ +struct qdio_brinfo_entry_l3_ipv6 { + u64 nit; + struct { unsigned char _s6_addr[16]; } addr; +} __packed; +struct qdio_brinfo_entry_l3_ipv4 { + u64 nit; + struct { uint32_t _s_addr; } addr; +} __packed; +struct qdio_brinfo_entry_l2 { + u64 nit; + struct { u8 mac[6]; u16 lnid; } addr_lnid; +} __packed; + #define QDIO_STATE_INACTIVE 0x00000002 /* after qdio_cleanup */ #define QDIO_STATE_ESTABLISHED 0x00000004 /* after qdio_establish */ #define QDIO_STATE_ACTIVE 0x00000008 /* after qdio_activate */ @@ -399,5 +427,10 @@ extern int qdio_get_next_buffers(struct ccw_device *, int, int *, int *); extern int qdio_shutdown(struct ccw_device *, int); extern int qdio_free(struct ccw_device *); extern int qdio_get_ssqd_desc(struct ccw_device *, struct qdio_ssqd_desc *); +extern int qdio_pnso_brinfo(struct subchannel_id schid, + int cnc, u16 *response, + void (*cb)(void *priv, enum qdio_brinfo_entry_type type, + void *entry), + void *priv); #endif /* __QDIO_H__ */ diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index 2f390956c7c1..2f5e9932b4de 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -46,14 +46,16 @@ int sclp_cpu_configure(u8 cpu); int sclp_cpu_deconfigure(u8 cpu); unsigned long long sclp_get_rnmax(void); unsigned long long sclp_get_rzm(void); +unsigned int sclp_get_max_cpu(void); int sclp_sdias_blk_count(void); int sclp_sdias_copy(void *dest, int blk_num, int nr_blks); int sclp_chp_configure(struct chp_id chpid); int sclp_chp_deconfigure(struct chp_id chpid); int sclp_chp_read_info(struct sclp_chp_info *info); void sclp_get_ipl_info(struct sclp_ipl_info *info); -bool sclp_has_linemode(void); -bool sclp_has_vt220(void); +bool __init sclp_has_linemode(void); +bool __init sclp_has_vt220(void); +bool sclp_has_sprp(void); int sclp_pci_configure(u32 fid); int sclp_pci_deconfigure(u32 fid); int memcpy_hsa(void *dest, unsigned long src, size_t count, int mode); diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h index 94cfbe442f12..b31b22dba948 100644 --- a/arch/s390/include/asm/setup.h +++ b/arch/s390/include/asm/setup.h @@ -59,7 +59,6 @@ void create_mem_hole(struct mem_chunk mem_chunk[], unsigned long addr, #define MACHINE_FLAG_DIAG44 (1UL << 4) #define MACHINE_FLAG_IDTE (1UL << 5) #define MACHINE_FLAG_DIAG9C (1UL << 6) -#define MACHINE_FLAG_MVCOS (1UL << 7) #define MACHINE_FLAG_KVM (1UL << 8) #define MACHINE_FLAG_ESOP (1UL << 9) #define MACHINE_FLAG_EDAT1 (1UL << 10) @@ -69,6 +68,7 @@ void create_mem_hole(struct mem_chunk mem_chunk[], unsigned long addr, #define MACHINE_FLAG_TOPOLOGY (1UL << 14) #define MACHINE_FLAG_TE (1UL << 15) #define MACHINE_FLAG_RRBM (1UL << 16) +#define MACHINE_FLAG_TLB_LC (1UL << 17) #define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM) #define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM) @@ -85,26 +85,26 @@ void create_mem_hole(struct mem_chunk mem_chunk[], unsigned long addr, #define MACHINE_HAS_IDTE (0) #define MACHINE_HAS_DIAG44 (1) #define MACHINE_HAS_MVPG (S390_lowcore.machine_flags & MACHINE_FLAG_MVPG) -#define MACHINE_HAS_MVCOS (0) #define MACHINE_HAS_EDAT1 (0) #define MACHINE_HAS_EDAT2 (0) #define MACHINE_HAS_LPP (0) #define MACHINE_HAS_TOPOLOGY (0) #define MACHINE_HAS_TE (0) #define MACHINE_HAS_RRBM (0) +#define MACHINE_HAS_TLB_LC (0) #else /* CONFIG_64BIT */ #define MACHINE_HAS_IEEE (1) #define MACHINE_HAS_CSP (1) #define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE) #define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44) #define MACHINE_HAS_MVPG (1) -#define MACHINE_HAS_MVCOS (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS) #define MACHINE_HAS_EDAT1 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT1) #define MACHINE_HAS_EDAT2 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT2) #define MACHINE_HAS_LPP (S390_lowcore.machine_flags & MACHINE_FLAG_LPP) #define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY) #define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE) #define MACHINE_HAS_RRBM (S390_lowcore.machine_flags & MACHINE_FLAG_RRBM) +#define MACHINE_HAS_TLB_LC (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC) #endif /* CONFIG_64BIT */ /* diff --git a/arch/s390/include/asm/sigp.h b/arch/s390/include/asm/sigp.h index 5a87d16d3e7c..d091aa1aaf11 100644 --- a/arch/s390/include/asm/sigp.h +++ b/arch/s390/include/asm/sigp.h @@ -5,6 +5,7 @@ #define SIGP_SENSE 1 #define SIGP_EXTERNAL_CALL 2 #define SIGP_EMERGENCY_SIGNAL 3 +#define SIGP_START 4 #define SIGP_STOP 5 #define SIGP_RESTART 6 #define SIGP_STOP_AND_STORE_STATUS 9 @@ -12,6 +13,7 @@ #define SIGP_SET_PREFIX 13 #define SIGP_STORE_STATUS_AT_ADDRESS 14 #define SIGP_SET_ARCHITECTURE 18 +#define SIGP_COND_EMERGENCY_SIGNAL 19 #define SIGP_SENSE_RUNNING 21 /* SIGP condition codes */ diff --git a/arch/s390/include/asm/switch_to.h b/arch/s390/include/asm/switch_to.h index 29c81f82705e..e759181357fc 100644 --- a/arch/s390/include/asm/switch_to.h +++ b/arch/s390/include/asm/switch_to.h @@ -132,6 +132,7 @@ static inline void restore_access_regs(unsigned int *acrs) update_cr_regs(next); \ } \ prev = __switch_to(prev,next); \ + update_primary_asce(current); \ } while (0) #define finish_arch_switch(prev) do { \ diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h index 10e0fcd3633d..50630e6a35de 100644 --- a/arch/s390/include/asm/thread_info.h +++ b/arch/s390/include/asm/thread_info.h @@ -81,6 +81,8 @@ static inline struct thread_info *current_thread_info(void) #define TIF_NOTIFY_RESUME 1 /* callback before returning to user */ #define TIF_SIGPENDING 2 /* signal pending */ #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ +#define TIF_TLB_WAIT 4 /* wait for TLB flush completion */ +#define TIF_ASCE 5 /* primary asce needs fixup / uaccess */ #define TIF_PER_TRAP 6 /* deliver sigtrap on return to user */ #define TIF_MCCK_PENDING 7 /* machine check handling is pending */ #define TIF_SYSCALL_TRACE 8 /* syscall trace active */ @@ -91,11 +93,14 @@ static inline struct thread_info *current_thread_info(void) #define TIF_MEMDIE 18 /* is terminating due to OOM killer */ #define TIF_RESTORE_SIGMASK 19 /* restore signal mask in do_signal() */ #define TIF_SINGLE_STEP 20 /* This task is single stepped */ +#define TIF_BLOCK_STEP 21 /* This task is block stepped */ #define _TIF_SYSCALL (1<<TIF_SYSCALL) #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) +#define _TIF_TLB_WAIT (1<<TIF_TLB_WAIT) +#define _TIF_ASCE (1<<TIF_ASCE) #define _TIF_PER_TRAP (1<<TIF_PER_TRAP) #define _TIF_MCCK_PENDING (1<<TIF_MCCK_PENDING) #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h index 2cb846c4b37f..c544b6f05d95 100644 --- a/arch/s390/include/asm/tlb.h +++ b/arch/s390/include/asm/tlb.h @@ -57,8 +57,6 @@ static inline void tlb_gather_mmu(struct mmu_gather *tlb, tlb->end = end; tlb->fullmm = !(start | (end+1)); tlb->batch = NULL; - if (tlb->fullmm) - __tlb_flush_mm(mm); } static inline void tlb_flush_mmu(struct mmu_gather *tlb) @@ -96,9 +94,7 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, unsigned long address) { - if (!tlb->fullmm) - return page_table_free_rcu(tlb, (unsigned long *) pte); - page_table_free(tlb->mm, (unsigned long *) pte); + page_table_free_rcu(tlb, (unsigned long *) pte); } /* @@ -114,9 +110,7 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, #ifdef CONFIG_64BIT if (tlb->mm->context.asce_limit <= (1UL << 31)) return; - if (!tlb->fullmm) - return tlb_remove_table(tlb, pmd); - crst_table_free(tlb->mm, (unsigned long *) pmd); + tlb_remove_table(tlb, pmd); #endif } @@ -133,9 +127,7 @@ static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud, #ifdef CONFIG_64BIT if (tlb->mm->context.asce_limit <= (1UL << 42)) return; - if (!tlb->fullmm) - return tlb_remove_table(tlb, pud); - crst_table_free(tlb->mm, (unsigned long *) pud); + tlb_remove_table(tlb, pud); #endif } diff --git a/arch/s390/include/asm/tlbflush.h b/arch/s390/include/asm/tlbflush.h index f9fef0425fee..16c9c88658c8 100644 --- a/arch/s390/include/asm/tlbflush.h +++ b/arch/s390/include/asm/tlbflush.h @@ -7,19 +7,41 @@ #include <asm/pgalloc.h> /* - * Flush all tlb entries on the local cpu. + * Flush all TLB entries on the local CPU. */ static inline void __tlb_flush_local(void) { asm volatile("ptlb" : : : "memory"); } -#ifdef CONFIG_SMP /* - * Flush all tlb entries on all cpus. + * Flush TLB entries for a specific ASCE on all CPUs */ +static inline void __tlb_flush_idte(unsigned long asce) +{ + /* Global TLB flush for the mm */ + asm volatile( + " .insn rrf,0xb98e0000,0,%0,%1,0" + : : "a" (2048), "a" (asce) : "cc"); +} + +/* + * Flush TLB entries for a specific ASCE on the local CPU + */ +static inline void __tlb_flush_idte_local(unsigned long asce) +{ + /* Local TLB flush for the mm */ + asm volatile( + " .insn rrf,0xb98e0000,0,%0,%1,1" + : : "a" (2048), "a" (asce) : "cc"); +} + +#ifdef CONFIG_SMP void smp_ptlb_all(void); +/* + * Flush all TLB entries on all CPUs. + */ static inline void __tlb_flush_global(void) { register unsigned long reg2 asm("2"); @@ -42,36 +64,89 @@ static inline void __tlb_flush_global(void) : : "d" (reg2), "d" (reg3), "d" (reg4), "m" (dummy) : "cc" ); } +/* + * Flush TLB entries for a specific mm on all CPUs (in case gmap is used + * this implicates multiple ASCEs!). + */ static inline void __tlb_flush_full(struct mm_struct *mm) { - cpumask_t local_cpumask; - preempt_disable(); - /* - * If the process only ran on the local cpu, do a local flush. - */ - cpumask_copy(&local_cpumask, cpumask_of(smp_processor_id())); - if (cpumask_equal(mm_cpumask(mm), &local_cpumask)) + atomic_add(0x10000, &mm->context.attach_count); + if (cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id()))) { + /* Local TLB flush */ __tlb_flush_local(); - else + } else { + /* Global TLB flush */ __tlb_flush_global(); + /* Reset TLB flush mask */ + if (MACHINE_HAS_TLB_LC) + cpumask_copy(mm_cpumask(mm), + &mm->context.cpu_attach_mask); + } + atomic_sub(0x10000, &mm->context.attach_count); preempt_enable(); } + +/* + * Flush TLB entries for a specific ASCE on all CPUs. + */ +static inline void __tlb_flush_asce(struct mm_struct *mm, unsigned long asce) +{ + int active, count; + + preempt_disable(); + active = (mm == current->active_mm) ? 1 : 0; + count = atomic_add_return(0x10000, &mm->context.attach_count); + if (MACHINE_HAS_TLB_LC && (count & 0xffff) <= active && + cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id()))) { + __tlb_flush_idte_local(asce); + } else { + if (MACHINE_HAS_IDTE) + __tlb_flush_idte(asce); + else + __tlb_flush_global(); + /* Reset TLB flush mask */ + if (MACHINE_HAS_TLB_LC) + cpumask_copy(mm_cpumask(mm), + &mm->context.cpu_attach_mask); + } + atomic_sub(0x10000, &mm->context.attach_count); + preempt_enable(); +} + +static inline void __tlb_flush_kernel(void) +{ + if (MACHINE_HAS_IDTE) + __tlb_flush_idte((unsigned long) init_mm.pgd | + init_mm.context.asce_bits); + else + __tlb_flush_global(); +} #else -#define __tlb_flush_full(mm) __tlb_flush_local() #define __tlb_flush_global() __tlb_flush_local() -#endif +#define __tlb_flush_full(mm) __tlb_flush_local() /* - * Flush all tlb entries of a page table on all cpus. + * Flush TLB entries for a specific ASCE on all CPUs. */ -static inline void __tlb_flush_idte(unsigned long asce) +static inline void __tlb_flush_asce(struct mm_struct *mm, unsigned long asce) { - asm volatile( - " .insn rrf,0xb98e0000,0,%0,%1,0" - : : "a" (2048), "a" (asce) : "cc" ); + if (MACHINE_HAS_TLB_LC) + __tlb_flush_idte_local(asce); + else + __tlb_flush_local(); } +static inline void __tlb_flush_kernel(void) +{ + if (MACHINE_HAS_TLB_LC) + __tlb_flush_idte_local((unsigned long) init_mm.pgd | + init_mm.context.asce_bits); + else + __tlb_flush_local(); +} +#endif + static inline void __tlb_flush_mm(struct mm_struct * mm) { /* @@ -80,7 +155,7 @@ static inline void __tlb_flush_mm(struct mm_struct * mm) * only ran on the local cpu. */ if (MACHINE_HAS_IDTE && list_empty(&mm->context.gmap_list)) - __tlb_flush_idte((unsigned long) mm->pgd | + __tlb_flush_asce(mm, (unsigned long) mm->pgd | mm->context.asce_bits); else __tlb_flush_full(mm); @@ -130,7 +205,7 @@ static inline void flush_tlb_range(struct vm_area_struct *vma, static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end) { - __tlb_flush_mm(&init_mm); + __tlb_flush_kernel(); } #endif /* _S390_TLBFLUSH_H */ diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h index 79330af9a5f8..1be64a1506d0 100644 --- a/arch/s390/include/asm/uaccess.h +++ b/arch/s390/include/asm/uaccess.h @@ -92,33 +92,56 @@ static inline unsigned long extable_fixup(const struct exception_table_entry *x) #define ARCH_HAS_SORT_EXTABLE #define ARCH_HAS_SEARCH_EXTABLE -struct uaccess_ops { - size_t (*copy_from_user)(size_t, const void __user *, void *); - size_t (*copy_to_user)(size_t, void __user *, const void *); - size_t (*copy_in_user)(size_t, void __user *, const void __user *); - size_t (*clear_user)(size_t, void __user *); - size_t (*strnlen_user)(size_t, const char __user *); - size_t (*strncpy_from_user)(size_t, const char __user *, char *); - int (*futex_atomic_op)(int op, u32 __user *, int oparg, int *old); - int (*futex_atomic_cmpxchg)(u32 *, u32 __user *, u32 old, u32 new); -}; +/** + * __copy_from_user: - Copy a block of data from user space, with less checking. + * @to: Destination address, in kernel space. + * @from: Source address, in user space. + * @n: Number of bytes to copy. + * + * Context: User context only. This function may sleep. + * + * Copy data from user space to kernel space. Caller must check + * the specified block with access_ok() before calling this function. + * + * Returns number of bytes that could not be copied. + * On success, this will be zero. + * + * If some data could not be copied, this function will pad the copied + * data to the requested size using zero bytes. + */ +unsigned long __must_check __copy_from_user(void *to, const void __user *from, + unsigned long n); -extern struct uaccess_ops uaccess; -extern struct uaccess_ops uaccess_mvcos; -extern struct uaccess_ops uaccess_pt; +/** + * __copy_to_user: - Copy a block of data into user space, with less checking. + * @to: Destination address, in user space. + * @from: Source address, in kernel space. + * @n: Number of bytes to copy. + * + * Context: User context only. This function may sleep. + * + * Copy data from kernel space to user space. Caller must check + * the specified block with access_ok() before calling this function. + * + * Returns number of bytes that could not be copied. + * On success, this will be zero. + */ +unsigned long __must_check __copy_to_user(void __user *to, const void *from, + unsigned long n); -extern int __handle_fault(unsigned long, unsigned long, int); +#define __copy_to_user_inatomic __copy_to_user +#define __copy_from_user_inatomic __copy_from_user -static inline int __put_user_fn(size_t size, void __user *ptr, void *x) +static inline int __put_user_fn(void *x, void __user *ptr, unsigned long size) { - size = uaccess.copy_to_user(size, ptr, x); - return size ? -EFAULT : size; + size = __copy_to_user(ptr, x, size); + return size ? -EFAULT : 0; } -static inline int __get_user_fn(size_t size, const void __user *ptr, void *x) +static inline int __get_user_fn(void *x, const void __user *ptr, unsigned long size) { - size = uaccess.copy_from_user(size, ptr, x); - return size ? -EFAULT : size; + size = __copy_from_user(x, ptr, size); + return size ? -EFAULT : 0; } /* @@ -135,8 +158,8 @@ static inline int __get_user_fn(size_t size, const void __user *ptr, void *x) case 2: \ case 4: \ case 8: \ - __pu_err = __put_user_fn(sizeof (*(ptr)), \ - ptr, &__x); \ + __pu_err = __put_user_fn(&__x, ptr, \ + sizeof(*(ptr))); \ break; \ default: \ __put_user_bad(); \ @@ -152,7 +175,7 @@ static inline int __get_user_fn(size_t size, const void __user *ptr, void *x) }) -extern int __put_user_bad(void) __attribute__((noreturn)); +int __put_user_bad(void) __attribute__((noreturn)); #define __get_user(x, ptr) \ ({ \ @@ -161,29 +184,29 @@ extern int __put_user_bad(void) __attribute__((noreturn)); switch (sizeof(*(ptr))) { \ case 1: { \ unsigned char __x; \ - __gu_err = __get_user_fn(sizeof (*(ptr)), \ - ptr, &__x); \ + __gu_err = __get_user_fn(&__x, ptr, \ + sizeof(*(ptr))); \ (x) = *(__force __typeof__(*(ptr)) *) &__x; \ break; \ }; \ case 2: { \ unsigned short __x; \ - __gu_err = __get_user_fn(sizeof (*(ptr)), \ - ptr, &__x); \ + __gu_err = __get_user_fn(&__x, ptr, \ + sizeof(*(ptr))); \ (x) = *(__force __typeof__(*(ptr)) *) &__x; \ break; \ }; \ case 4: { \ unsigned int __x; \ - __gu_err = __get_user_fn(sizeof (*(ptr)), \ - ptr, &__x); \ + __gu_err = __get_user_fn(&__x, ptr, \ + sizeof(*(ptr))); \ (x) = *(__force __typeof__(*(ptr)) *) &__x; \ break; \ }; \ case 8: { \ unsigned long long __x; \ - __gu_err = __get_user_fn(sizeof (*(ptr)), \ - ptr, &__x); \ + __gu_err = __get_user_fn(&__x, ptr, \ + sizeof(*(ptr))); \ (x) = *(__force __typeof__(*(ptr)) *) &__x; \ break; \ }; \ @@ -200,35 +223,12 @@ extern int __put_user_bad(void) __attribute__((noreturn)); __get_user(x, ptr); \ }) -extern int __get_user_bad(void) __attribute__((noreturn)); +int __get_user_bad(void) __attribute__((noreturn)); #define __put_user_unaligned __put_user #define __get_user_unaligned __get_user /** - * __copy_to_user: - Copy a block of data into user space, with less checking. - * @to: Destination address, in user space. - * @from: Source address, in kernel space. - * @n: Number of bytes to copy. - * - * Context: User context only. This function may sleep. - * - * Copy data from kernel space to user space. Caller must check - * the specified block with access_ok() before calling this function. - * - * Returns number of bytes that could not be copied. - * On success, this will be zero. - */ -static inline unsigned long __must_check -__copy_to_user(void __user *to, const void *from, unsigned long n) -{ - return uaccess.copy_to_user(n, to, from); -} - -#define __copy_to_user_inatomic __copy_to_user -#define __copy_from_user_inatomic __copy_from_user - -/** * copy_to_user: - Copy a block of data into user space. * @to: Destination address, in user space. * @from: Source address, in kernel space. @@ -248,30 +248,7 @@ copy_to_user(void __user *to, const void *from, unsigned long n) return __copy_to_user(to, from, n); } -/** - * __copy_from_user: - Copy a block of data from user space, with less checking. - * @to: Destination address, in kernel space. - * @from: Source address, in user space. - * @n: Number of bytes to copy. - * - * Context: User context only. This function may sleep. - * - * Copy data from user space to kernel space. Caller must check - * the specified block with access_ok() before calling this function. - * - * Returns number of bytes that could not be copied. - * On success, this will be zero. - * - * If some data could not be copied, this function will pad the copied - * data to the requested size using zero bytes. - */ -static inline unsigned long __must_check -__copy_from_user(void *to, const void __user *from, unsigned long n) -{ - return uaccess.copy_from_user(n, from, to); -} - -extern void copy_from_user_overflow(void) +void copy_from_user_overflow(void) #ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS __compiletime_warning("copy_from_user() buffer size is not provably correct") #endif @@ -306,11 +283,8 @@ copy_from_user(void *to, const void __user *from, unsigned long n) return __copy_from_user(to, from, n); } -static inline unsigned long __must_check -__copy_in_user(void __user *to, const void __user *from, unsigned long n) -{ - return uaccess.copy_in_user(n, to, from); -} +unsigned long __must_check +__copy_in_user(void __user *to, const void __user *from, unsigned long n); static inline unsigned long __must_check copy_in_user(void __user *to, const void __user *from, unsigned long n) @@ -322,18 +296,22 @@ copy_in_user(void __user *to, const void __user *from, unsigned long n) /* * Copy a null terminated string from userspace. */ + +long __strncpy_from_user(char *dst, const char __user *src, long count); + static inline long __must_check strncpy_from_user(char *dst, const char __user *src, long count) { might_fault(); - return uaccess.strncpy_from_user(count, src, dst); + return __strncpy_from_user(dst, src, count); } -static inline unsigned long -strnlen_user(const char __user * src, unsigned long n) +unsigned long __must_check __strnlen_user(const char __user *src, unsigned long count); + +static inline unsigned long strnlen_user(const char __user *src, unsigned long n) { might_fault(); - return uaccess.strnlen_user(n, src); + return __strnlen_user(src, n); } /** @@ -355,21 +333,14 @@ strnlen_user(const char __user * src, unsigned long n) /* * Zero Userspace */ +unsigned long __must_check __clear_user(void __user *to, unsigned long size); -static inline unsigned long __must_check -__clear_user(void __user *to, unsigned long n) -{ - return uaccess.clear_user(n, to); -} - -static inline unsigned long __must_check -clear_user(void __user *to, unsigned long n) +static inline unsigned long __must_check clear_user(void __user *to, unsigned long n) { might_fault(); - return uaccess.clear_user(n, to); + return __clear_user(to, n); } -extern int copy_to_user_real(void __user *dest, void *src, size_t count); -extern int copy_from_user_real(void *dest, void __user *src, size_t count); +int copy_to_user_real(void __user *dest, void *src, unsigned long count); #endif /* __S390_UACCESS_H */ diff --git a/arch/s390/include/uapi/asm/hypfs.h b/arch/s390/include/uapi/asm/hypfs.h new file mode 100644 index 000000000000..37998b449531 --- /dev/null +++ b/arch/s390/include/uapi/asm/hypfs.h @@ -0,0 +1,25 @@ +/* + * IOCTL interface for hypfs + * + * Copyright IBM Corp. 2013 + * + * Author: Martin Schwidefsky <schwidefsky@de.ibm.com> + */ + +#ifndef _ASM_HYPFS_CTL_H +#define _ASM_HYPFS_CTL_H + +#include <linux/types.h> + +struct hypfs_diag304 { + __u32 args[2]; + __u64 data; + __u64 rc; +} __attribute__((packed)); + +#define HYPFS_IOCTL_MAGIC 0x10 + +#define HYPFS_DIAG304 \ + _IOWR(HYPFS_IOCTL_MAGIC, 0x20, struct hypfs_diag304) + +#endif diff --git a/arch/s390/include/uapi/asm/kvm.h b/arch/s390/include/uapi/asm/kvm.h index d25da598ec62..c003c6a73b1e 100644 --- a/arch/s390/include/uapi/asm/kvm.h +++ b/arch/s390/include/uapi/asm/kvm.h @@ -16,6 +16,44 @@ #define __KVM_S390 +/* Device control API: s390-specific devices */ +#define KVM_DEV_FLIC_GET_ALL_IRQS 1 +#define KVM_DEV_FLIC_ENQUEUE 2 +#define KVM_DEV_FLIC_CLEAR_IRQS 3 +#define KVM_DEV_FLIC_APF_ENABLE 4 +#define KVM_DEV_FLIC_APF_DISABLE_WAIT 5 +#define KVM_DEV_FLIC_ADAPTER_REGISTER 6 +#define KVM_DEV_FLIC_ADAPTER_MODIFY 7 +/* + * We can have up to 4*64k pending subchannels + 8 adapter interrupts, + * as well as up to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts. + * There are also sclp and machine checks. This gives us + * sizeof(kvm_s390_irq)*(4*65536+8+64*64+1+1) = 72 * 266250 = 19170000 + * Lets round up to 8192 pages. + */ +#define KVM_S390_MAX_FLOAT_IRQS 266250 +#define KVM_S390_FLIC_MAX_BUFFER 0x2000000 + +struct kvm_s390_io_adapter { + __u32 id; + __u8 isc; + __u8 maskable; + __u8 swap; + __u8 pad; +}; + +#define KVM_S390_IO_ADAPTER_MASK 1 +#define KVM_S390_IO_ADAPTER_MAP 2 +#define KVM_S390_IO_ADAPTER_UNMAP 3 + +struct kvm_s390_io_adapter_req { + __u32 id; + __u8 type; + __u8 mask; + __u16 pad0; + __u64 addr; +}; + /* for KVM_GET_REGS and KVM_SET_REGS */ struct kvm_regs { /* general purpose regs for s390 */ @@ -57,4 +95,9 @@ struct kvm_sync_regs { #define KVM_REG_S390_EPOCHDIFF (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2) #define KVM_REG_S390_CPU_TIMER (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3) #define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4) +#define KVM_REG_S390_PFTOKEN (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5) +#define KVM_REG_S390_PFCOMPARE (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6) +#define KVM_REG_S390_PFSELECT (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7) +#define KVM_REG_S390_PP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8) +#define KVM_REG_S390_GBEA (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9) #endif diff --git a/arch/s390/include/uapi/asm/ptrace.h b/arch/s390/include/uapi/asm/ptrace.h index 7e0b498a2c2b..a150f4fabe43 100644 --- a/arch/s390/include/uapi/asm/ptrace.h +++ b/arch/s390/include/uapi/asm/ptrace.h @@ -403,6 +403,12 @@ typedef struct #define PTRACE_TE_ABORT_RAND 0x5011 /* + * The numbers chosen here are somewhat arbitrary but absolutely MUST + * not overlap with any of the number assigned in <linux/ptrace.h>. + */ +#define PTRACE_SINGLEBLOCK 12 /* resume execution until next branch */ + +/* * PT_PROT definition is loosely based on hppa bsd definition in * gdb/hppab-nat.c */ diff --git a/arch/s390/include/uapi/asm/socket.h b/arch/s390/include/uapi/asm/socket.h index c286c2e868f0..e031332096d7 100644 --- a/arch/s390/include/uapi/asm/socket.h +++ b/arch/s390/include/uapi/asm/socket.h @@ -84,4 +84,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/s390/include/uapi/asm/statfs.h b/arch/s390/include/uapi/asm/statfs.h index a61d538756f2..471eb09184d4 100644 --- a/arch/s390/include/uapi/asm/statfs.h +++ b/arch/s390/include/uapi/asm/statfs.h @@ -35,11 +35,11 @@ struct statfs { struct statfs64 { unsigned int f_type; unsigned int f_bsize; - unsigned long f_blocks; - unsigned long f_bfree; - unsigned long f_bavail; - unsigned long f_files; - unsigned long f_ffree; + unsigned long long f_blocks; + unsigned long long f_bfree; + unsigned long long f_bavail; + unsigned long long f_files; + unsigned long long f_ffree; __kernel_fsid_t f_fsid; unsigned int f_namelen; unsigned int f_frsize; diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h index 864f693c237f..5eb5c9ddb120 100644 --- a/arch/s390/include/uapi/asm/unistd.h +++ b/arch/s390/include/uapi/asm/unistd.h @@ -280,6 +280,8 @@ #define __NR_s390_runtime_instr 342 #define __NR_kcmp 343 #define __NR_finit_module 344 +#define __NR_sched_setattr 345 +#define __NR_sched_getattr 346 #define NR_syscalls 345 /* diff --git a/arch/s390/include/uapi/asm/zcrypt.h b/arch/s390/include/uapi/asm/zcrypt.h index e83fc116f5bf..f2b18eacaca8 100644 --- a/arch/s390/include/uapi/asm/zcrypt.h +++ b/arch/s390/include/uapi/asm/zcrypt.h @@ -154,6 +154,67 @@ struct ica_xcRB { unsigned short priority_window; unsigned int status; } __attribute__((packed)); + +/** + * struct ep11_cprb - EP11 connectivity programming request block + * @cprb_len: CPRB header length [0x0020] + * @cprb_ver_id: CPRB version id. [0x04] + * @pad_000: Alignment pad bytes + * @flags: Admin cmd [0x80] or functional cmd [0x00] + * @func_id: Function id / subtype [0x5434] + * @source_id: Source id [originator id] + * @target_id: Target id [usage/ctrl domain id] + * @ret_code: Return code + * @reserved1: Reserved + * @reserved2: Reserved + * @payload_len: Payload length + */ +struct ep11_cprb { + uint16_t cprb_len; + unsigned char cprb_ver_id; + unsigned char pad_000[2]; + unsigned char flags; + unsigned char func_id[2]; + uint32_t source_id; + uint32_t target_id; + uint32_t ret_code; + uint32_t reserved1; + uint32_t reserved2; + uint32_t payload_len; +} __attribute__((packed)); + +/** + * struct ep11_target_dev - EP11 target device list + * @ap_id: AP device id + * @dom_id: Usage domain id + */ +struct ep11_target_dev { + uint16_t ap_id; + uint16_t dom_id; +}; + +/** + * struct ep11_urb - EP11 user request block + * @targets_num: Number of target adapters + * @targets: Addr to target adapter list + * @weight: Level of request priority + * @req_no: Request id/number + * @req_len: Request length + * @req: Addr to request block + * @resp_len: Response length + * @resp: Addr to response block + */ +struct ep11_urb { + uint16_t targets_num; + uint64_t targets; + uint64_t weight; + uint64_t req_no; + uint64_t req_len; + uint64_t req; + uint64_t resp_len; + uint64_t resp; +} __attribute__((packed)); + #define AUTOSELECT ((unsigned int)0xFFFFFFFF) #define ZCRYPT_IOCTL_MAGIC 'z' @@ -183,6 +244,9 @@ struct ica_xcRB { * ZSECSENDCPRB * Send an arbitrary CPRB to a crypto card. * + * ZSENDEP11CPRB + * Send an arbitrary EP11 CPRB to an EP11 coprocessor crypto card. + * * Z90STAT_STATUS_MASK * Return an 64 element array of unsigned chars for the status of * all devices. @@ -256,6 +320,7 @@ struct ica_xcRB { #define ICARSAMODEXPO _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x05, 0) #define ICARSACRT _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x06, 0) #define ZSECSENDCPRB _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x81, 0) +#define ZSENDEP11CPRB _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x04, 0) /* New status calls */ #define Z90STAT_TOTALCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x40, int) |