aboutsummaryrefslogtreecommitdiffstats
path: root/arch/s390
diff options
context:
space:
mode:
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/Kconfig8
-rw-r--r--arch/s390/Makefile3
-rw-r--r--arch/s390/hypfs/inode.c6
-rw-r--r--arch/s390/include/asm/atomic.h205
-rw-r--r--arch/s390/include/asm/checksum.h25
-rw-r--r--arch/s390/include/asm/chsc.h28
-rw-r--r--arch/s390/include/asm/cio.h223
-rw-r--r--arch/s390/include/asm/cpu.h26
-rw-r--r--arch/s390/include/asm/cpuid.h25
-rw-r--r--arch/s390/include/asm/debug.h9
-rw-r--r--arch/s390/include/asm/hardirq.h7
-rw-r--r--arch/s390/include/asm/ipl.h5
-rw-r--r--arch/s390/include/asm/kvm_host.h6
-rw-r--r--arch/s390/include/asm/kvm_virtio.h10
-rw-r--r--arch/s390/include/asm/lowcore.h6
-rw-r--r--arch/s390/include/asm/mmu.h1
-rw-r--r--arch/s390/include/asm/page.h4
-rw-r--r--arch/s390/include/asm/pgalloc.h1
-rw-r--r--arch/s390/include/asm/processor.h4
-rw-r--r--arch/s390/include/asm/scatterlist.h20
-rw-r--r--arch/s390/include/asm/scsw.h956
-rw-r--r--arch/s390/include/asm/setup.h2
-rw-r--r--arch/s390/include/asm/smp.h32
-rw-r--r--arch/s390/include/asm/system.h4
-rw-r--r--arch/s390/include/asm/timex.h14
-rw-r--r--arch/s390/kernel/Makefile4
-rw-r--r--arch/s390/kernel/early.c74
-rw-r--r--arch/s390/kernel/entry.S16
-rw-r--r--arch/s390/kernel/entry64.S4
-rw-r--r--arch/s390/kernel/head.S1
-rw-r--r--arch/s390/kernel/head31.S1
-rw-r--r--arch/s390/kernel/head64.S9
-rw-r--r--arch/s390/kernel/ipl.c166
-rw-r--r--arch/s390/kernel/mcount.S147
-rw-r--r--arch/s390/kernel/mcount64.S78
-rw-r--r--arch/s390/kernel/setup.c10
-rw-r--r--arch/s390/kernel/smp.c39
-rw-r--r--arch/s390/kernel/suspend.c (renamed from arch/s390/power/swsusp.c)35
-rw-r--r--arch/s390/kernel/swsusp_asm64.S (renamed from arch/s390/power/swsusp_asm64.S)2
-rw-r--r--arch/s390/kernel/time.c3
-rw-r--r--arch/s390/kernel/vmlinux.lds.S87
-rw-r--r--arch/s390/mm/Makefile4
-rw-r--r--arch/s390/mm/fault.c13
-rw-r--r--arch/s390/mm/page-states.c6
-rw-r--r--arch/s390/mm/pgtable.c24
-rw-r--r--arch/s390/mm/vmem.c1
-rw-r--r--arch/s390/power/Makefile8
-rw-r--r--arch/s390/power/suspend.c40
-rw-r--r--arch/s390/power/swsusp_64.c17
49 files changed, 1607 insertions, 812 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 2ae5d72f47ed..e030e86ff6a3 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -95,7 +95,6 @@ config S390
95 select HAVE_ARCH_TRACEHOOK 95 select HAVE_ARCH_TRACEHOOK
96 select INIT_ALL_POSSIBLE 96 select INIT_ALL_POSSIBLE
97 select HAVE_PERF_COUNTERS 97 select HAVE_PERF_COUNTERS
98 select GENERIC_ATOMIC64 if !64BIT
99 98
100config SCHED_OMIT_FRAME_POINTER 99config SCHED_OMIT_FRAME_POINTER
101 bool 100 bool
@@ -481,13 +480,6 @@ config CMM_IUCV
481 Select this option to enable the special message interface to 480 Select this option to enable the special message interface to
482 the cooperative memory management. 481 the cooperative memory management.
483 482
484config PAGE_STATES
485 bool "Unused page notification"
486 help
487 This enables the notification of unused pages to the
488 hypervisor. The ESSA instruction is used to do the states
489 changes between a page that has content and the unused state.
490
491config APPLDATA_BASE 483config APPLDATA_BASE
492 bool "Linux - VM Monitor Stream, base infrastructure" 484 bool "Linux - VM Monitor Stream, base infrastructure"
493 depends on PROC_FS 485 depends on PROC_FS
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index 0ff387cebf88..fc8fb20e7fc0 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -88,8 +88,7 @@ LDFLAGS_vmlinux := -e start
88head-y := arch/s390/kernel/head.o arch/s390/kernel/init_task.o 88head-y := arch/s390/kernel/head.o arch/s390/kernel/init_task.o
89 89
90core-y += arch/s390/mm/ arch/s390/kernel/ arch/s390/crypto/ \ 90core-y += arch/s390/mm/ arch/s390/kernel/ arch/s390/crypto/ \
91 arch/s390/appldata/ arch/s390/hypfs/ arch/s390/kvm/ \ 91 arch/s390/appldata/ arch/s390/hypfs/ arch/s390/kvm/
92 arch/s390/power/
93 92
94libs-y += arch/s390/lib/ 93libs-y += arch/s390/lib/
95drivers-y += drivers/s390/ 94drivers-y += drivers/s390/
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 5a805df216bb..bd9914b89488 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -355,11 +355,7 @@ static struct dentry *hypfs_create_file(struct super_block *sb,
355{ 355{
356 struct dentry *dentry; 356 struct dentry *dentry;
357 struct inode *inode; 357 struct inode *inode;
358 struct qstr qname;
359 358
360 qname.name = name;
361 qname.len = strlen(name);
362 qname.hash = full_name_hash(name, qname.len);
363 mutex_lock(&parent->d_inode->i_mutex); 359 mutex_lock(&parent->d_inode->i_mutex);
364 dentry = lookup_one_len(name, parent, strlen(name)); 360 dentry = lookup_one_len(name, parent, strlen(name));
365 if (IS_ERR(dentry)) { 361 if (IS_ERR(dentry)) {
@@ -426,7 +422,7 @@ struct dentry *hypfs_create_u64(struct super_block *sb, struct dentry *dir,
426 char tmp[TMP_SIZE]; 422 char tmp[TMP_SIZE];
427 struct dentry *dentry; 423 struct dentry *dentry;
428 424
429 snprintf(tmp, TMP_SIZE, "%lld\n", (unsigned long long int)value); 425 snprintf(tmp, TMP_SIZE, "%llu\n", (unsigned long long int)value);
430 buffer = kstrdup(tmp, GFP_KERNEL); 426 buffer = kstrdup(tmp, GFP_KERNEL);
431 if (!buffer) 427 if (!buffer)
432 return ERR_PTR(-ENOMEM); 428 return ERR_PTR(-ENOMEM);
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index c7d0abfb0f00..ae7c8f9f94a5 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -1,33 +1,23 @@
1#ifndef __ARCH_S390_ATOMIC__ 1#ifndef __ARCH_S390_ATOMIC__
2#define __ARCH_S390_ATOMIC__ 2#define __ARCH_S390_ATOMIC__
3 3
4#include <linux/compiler.h>
5#include <linux/types.h>
6
7/* 4/*
8 * include/asm-s390/atomic.h 5 * Copyright 1999,2009 IBM Corp.
6 * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>,
7 * Denis Joseph Barrow,
8 * Arnd Bergmann <arndb@de.ibm.com>,
9 * 9 *
10 * S390 version 10 * Atomic operations that C can't guarantee us.
11 * Copyright (C) 1999-2005 IBM Deutschland Entwicklung GmbH, IBM Corporation 11 * Useful for resource counting etc.
12 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com), 12 * s390 uses 'Compare And Swap' for atomicity in SMP enviroment.
13 * Denis Joseph Barrow,
14 * Arnd Bergmann (arndb@de.ibm.com)
15 *
16 * Derived from "include/asm-i386/bitops.h"
17 * Copyright (C) 1992, Linus Torvalds
18 * 13 *
19 */ 14 */
20 15
21/* 16#include <linux/compiler.h>
22 * Atomic operations that C can't guarantee us. Useful for 17#include <linux/types.h>
23 * resource counting etc..
24 * S390 uses 'Compare And Swap' for atomicity in SMP enviroment
25 */
26 18
27#define ATOMIC_INIT(i) { (i) } 19#define ATOMIC_INIT(i) { (i) }
28 20
29#ifdef __KERNEL__
30
31#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2) 21#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
32 22
33#define __CS_LOOP(ptr, op_val, op_string) ({ \ 23#define __CS_LOOP(ptr, op_val, op_string) ({ \
@@ -77,7 +67,7 @@ static inline void atomic_set(atomic_t *v, int i)
77 barrier(); 67 barrier();
78} 68}
79 69
80static __inline__ int atomic_add_return(int i, atomic_t * v) 70static inline int atomic_add_return(int i, atomic_t *v)
81{ 71{
82 return __CS_LOOP(v, i, "ar"); 72 return __CS_LOOP(v, i, "ar");
83} 73}
@@ -87,7 +77,7 @@ static __inline__ int atomic_add_return(int i, atomic_t * v)
87#define atomic_inc_return(_v) atomic_add_return(1, _v) 77#define atomic_inc_return(_v) atomic_add_return(1, _v)
88#define atomic_inc_and_test(_v) (atomic_add_return(1, _v) == 0) 78#define atomic_inc_and_test(_v) (atomic_add_return(1, _v) == 0)
89 79
90static __inline__ int atomic_sub_return(int i, atomic_t * v) 80static inline int atomic_sub_return(int i, atomic_t *v)
91{ 81{
92 return __CS_LOOP(v, i, "sr"); 82 return __CS_LOOP(v, i, "sr");
93} 83}
@@ -97,19 +87,19 @@ static __inline__ int atomic_sub_return(int i, atomic_t * v)
97#define atomic_dec_return(_v) atomic_sub_return(1, _v) 87#define atomic_dec_return(_v) atomic_sub_return(1, _v)
98#define atomic_dec_and_test(_v) (atomic_sub_return(1, _v) == 0) 88#define atomic_dec_and_test(_v) (atomic_sub_return(1, _v) == 0)
99 89
100static __inline__ void atomic_clear_mask(unsigned long mask, atomic_t * v) 90static inline void atomic_clear_mask(unsigned long mask, atomic_t *v)
101{ 91{
102 __CS_LOOP(v, ~mask, "nr"); 92 __CS_LOOP(v, ~mask, "nr");
103} 93}
104 94
105static __inline__ void atomic_set_mask(unsigned long mask, atomic_t * v) 95static inline void atomic_set_mask(unsigned long mask, atomic_t *v)
106{ 96{
107 __CS_LOOP(v, mask, "or"); 97 __CS_LOOP(v, mask, "or");
108} 98}
109 99
110#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) 100#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
111 101
112static __inline__ int atomic_cmpxchg(atomic_t *v, int old, int new) 102static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
113{ 103{
114#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2) 104#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
115 asm volatile( 105 asm volatile(
@@ -127,7 +117,7 @@ static __inline__ int atomic_cmpxchg(atomic_t *v, int old, int new)
127 return old; 117 return old;
128} 118}
129 119
130static __inline__ int atomic_add_unless(atomic_t *v, int a, int u) 120static inline int atomic_add_unless(atomic_t *v, int a, int u)
131{ 121{
132 int c, old; 122 int c, old;
133 c = atomic_read(v); 123 c = atomic_read(v);
@@ -146,9 +136,10 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
146 136
147#undef __CS_LOOP 137#undef __CS_LOOP
148 138
149#ifdef __s390x__
150#define ATOMIC64_INIT(i) { (i) } 139#define ATOMIC64_INIT(i) { (i) }
151 140
141#ifdef CONFIG_64BIT
142
152#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2) 143#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
153 144
154#define __CSG_LOOP(ptr, op_val, op_string) ({ \ 145#define __CSG_LOOP(ptr, op_val, op_string) ({ \
@@ -162,7 +153,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
162 : "=&d" (old_val), "=&d" (new_val), \ 153 : "=&d" (old_val), "=&d" (new_val), \
163 "=Q" (((atomic_t *)(ptr))->counter) \ 154 "=Q" (((atomic_t *)(ptr))->counter) \
164 : "d" (op_val), "Q" (((atomic_t *)(ptr))->counter) \ 155 : "d" (op_val), "Q" (((atomic_t *)(ptr))->counter) \
165 : "cc", "memory" ); \ 156 : "cc", "memory"); \
166 new_val; \ 157 new_val; \
167}) 158})
168 159
@@ -180,7 +171,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
180 "=m" (((atomic_t *)(ptr))->counter) \ 171 "=m" (((atomic_t *)(ptr))->counter) \
181 : "a" (ptr), "d" (op_val), \ 172 : "a" (ptr), "d" (op_val), \
182 "m" (((atomic_t *)(ptr))->counter) \ 173 "m" (((atomic_t *)(ptr))->counter) \
183 : "cc", "memory" ); \ 174 : "cc", "memory"); \
184 new_val; \ 175 new_val; \
185}) 176})
186 177
@@ -198,39 +189,29 @@ static inline void atomic64_set(atomic64_t *v, long long i)
198 barrier(); 189 barrier();
199} 190}
200 191
201static __inline__ long long atomic64_add_return(long long i, atomic64_t * v) 192static inline long long atomic64_add_return(long long i, atomic64_t *v)
202{ 193{
203 return __CSG_LOOP(v, i, "agr"); 194 return __CSG_LOOP(v, i, "agr");
204} 195}
205#define atomic64_add(_i, _v) atomic64_add_return(_i, _v)
206#define atomic64_add_negative(_i, _v) (atomic64_add_return(_i, _v) < 0)
207#define atomic64_inc(_v) atomic64_add_return(1, _v)
208#define atomic64_inc_return(_v) atomic64_add_return(1, _v)
209#define atomic64_inc_and_test(_v) (atomic64_add_return(1, _v) == 0)
210 196
211static __inline__ long long atomic64_sub_return(long long i, atomic64_t * v) 197static inline long long atomic64_sub_return(long long i, atomic64_t *v)
212{ 198{
213 return __CSG_LOOP(v, i, "sgr"); 199 return __CSG_LOOP(v, i, "sgr");
214} 200}
215#define atomic64_sub(_i, _v) atomic64_sub_return(_i, _v)
216#define atomic64_sub_and_test(_i, _v) (atomic64_sub_return(_i, _v) == 0)
217#define atomic64_dec(_v) atomic64_sub_return(1, _v)
218#define atomic64_dec_return(_v) atomic64_sub_return(1, _v)
219#define atomic64_dec_and_test(_v) (atomic64_sub_return(1, _v) == 0)
220 201
221static __inline__ void atomic64_clear_mask(unsigned long mask, atomic64_t * v) 202static inline void atomic64_clear_mask(unsigned long mask, atomic64_t *v)
222{ 203{
223 __CSG_LOOP(v, ~mask, "ngr"); 204 __CSG_LOOP(v, ~mask, "ngr");
224} 205}
225 206
226static __inline__ void atomic64_set_mask(unsigned long mask, atomic64_t * v) 207static inline void atomic64_set_mask(unsigned long mask, atomic64_t *v)
227{ 208{
228 __CSG_LOOP(v, mask, "ogr"); 209 __CSG_LOOP(v, mask, "ogr");
229} 210}
230 211
231#define atomic64_xchg(v, new) (xchg(&((v)->counter), new)) 212#define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
232 213
233static __inline__ long long atomic64_cmpxchg(atomic64_t *v, 214static inline long long atomic64_cmpxchg(atomic64_t *v,
234 long long old, long long new) 215 long long old, long long new)
235{ 216{
236#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2) 217#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
@@ -249,8 +230,112 @@ static __inline__ long long atomic64_cmpxchg(atomic64_t *v,
249 return old; 230 return old;
250} 231}
251 232
252static __inline__ int atomic64_add_unless(atomic64_t *v, 233#undef __CSG_LOOP
253 long long a, long long u) 234
235#else /* CONFIG_64BIT */
236
237typedef struct {
238 long long counter;
239} atomic64_t;
240
241static inline long long atomic64_read(const atomic64_t *v)
242{
243 register_pair rp;
244
245 asm volatile(
246 " lm %0,%N0,0(%1)"
247 : "=&d" (rp)
248 : "a" (&v->counter), "m" (v->counter)
249 );
250 return rp.pair;
251}
252
253static inline void atomic64_set(atomic64_t *v, long long i)
254{
255 register_pair rp = {.pair = i};
256
257 asm volatile(
258 " stm %1,%N1,0(%2)"
259 : "=m" (v->counter)
260 : "d" (rp), "a" (&v->counter)
261 );
262}
263
264static inline long long atomic64_xchg(atomic64_t *v, long long new)
265{
266 register_pair rp_new = {.pair = new};
267 register_pair rp_old;
268
269 asm volatile(
270 " lm %0,%N0,0(%2)\n"
271 "0: cds %0,%3,0(%2)\n"
272 " jl 0b\n"
273 : "=&d" (rp_old), "+m" (v->counter)
274 : "a" (&v->counter), "d" (rp_new)
275 : "cc");
276 return rp_old.pair;
277}
278
279static inline long long atomic64_cmpxchg(atomic64_t *v,
280 long long old, long long new)
281{
282 register_pair rp_old = {.pair = old};
283 register_pair rp_new = {.pair = new};
284
285 asm volatile(
286 " cds %0,%3,0(%2)"
287 : "+&d" (rp_old), "+m" (v->counter)
288 : "a" (&v->counter), "d" (rp_new)
289 : "cc");
290 return rp_old.pair;
291}
292
293
294static inline long long atomic64_add_return(long long i, atomic64_t *v)
295{
296 long long old, new;
297
298 do {
299 old = atomic64_read(v);
300 new = old + i;
301 } while (atomic64_cmpxchg(v, old, new) != old);
302 return new;
303}
304
305static inline long long atomic64_sub_return(long long i, atomic64_t *v)
306{
307 long long old, new;
308
309 do {
310 old = atomic64_read(v);
311 new = old - i;
312 } while (atomic64_cmpxchg(v, old, new) != old);
313 return new;
314}
315
316static inline void atomic64_set_mask(unsigned long long mask, atomic64_t *v)
317{
318 long long old, new;
319
320 do {
321 old = atomic64_read(v);
322 new = old | mask;
323 } while (atomic64_cmpxchg(v, old, new) != old);
324}
325
326static inline void atomic64_clear_mask(unsigned long long mask, atomic64_t *v)
327{
328 long long old, new;
329
330 do {
331 old = atomic64_read(v);
332 new = old & mask;
333 } while (atomic64_cmpxchg(v, old, new) != old);
334}
335
336#endif /* CONFIG_64BIT */
337
338static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
254{ 339{
255 long long c, old; 340 long long c, old;
256 c = atomic64_read(v); 341 c = atomic64_read(v);
@@ -265,15 +350,17 @@ static __inline__ int atomic64_add_unless(atomic64_t *v,
265 return c != u; 350 return c != u;
266} 351}
267 352
268#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) 353#define atomic64_add(_i, _v) atomic64_add_return(_i, _v)
269 354#define atomic64_add_negative(_i, _v) (atomic64_add_return(_i, _v) < 0)
270#undef __CSG_LOOP 355#define atomic64_inc(_v) atomic64_add_return(1, _v)
271 356#define atomic64_inc_return(_v) atomic64_add_return(1, _v)
272#else /* __s390x__ */ 357#define atomic64_inc_and_test(_v) (atomic64_add_return(1, _v) == 0)
273 358#define atomic64_sub(_i, _v) atomic64_sub_return(_i, _v)
274#include <asm-generic/atomic64.h> 359#define atomic64_sub_and_test(_i, _v) (atomic64_sub_return(_i, _v) == 0)
275 360#define atomic64_dec(_v) atomic64_sub_return(1, _v)
276#endif /* __s390x__ */ 361#define atomic64_dec_return(_v) atomic64_sub_return(1, _v)
362#define atomic64_dec_and_test(_v) (atomic64_sub_return(1, _v) == 0)
363#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
277 364
278#define smp_mb__before_atomic_dec() smp_mb() 365#define smp_mb__before_atomic_dec() smp_mb()
279#define smp_mb__after_atomic_dec() smp_mb() 366#define smp_mb__after_atomic_dec() smp_mb()
@@ -281,5 +368,5 @@ static __inline__ int atomic64_add_unless(atomic64_t *v,
281#define smp_mb__after_atomic_inc() smp_mb() 368#define smp_mb__after_atomic_inc() smp_mb()
282 369
283#include <asm-generic/atomic-long.h> 370#include <asm-generic/atomic-long.h>
284#endif /* __KERNEL__ */ 371
285#endif /* __ARCH_S390_ATOMIC__ */ 372#endif /* __ARCH_S390_ATOMIC__ */
diff --git a/arch/s390/include/asm/checksum.h b/arch/s390/include/asm/checksum.h
index d5a8e7c1477c..6c00f6800a34 100644
--- a/arch/s390/include/asm/checksum.h
+++ b/arch/s390/include/asm/checksum.h
@@ -78,28 +78,11 @@ csum_partial_copy_nocheck (const void *src, void *dst, int len, __wsum sum)
78 */ 78 */
79static inline __sum16 csum_fold(__wsum sum) 79static inline __sum16 csum_fold(__wsum sum)
80{ 80{
81#ifndef __s390x__ 81 u32 csum = (__force u32) sum;
82 register_pair rp;
83 82
84 asm volatile( 83 csum += (csum >> 16) + (csum << 16);
85 " slr %N1,%N1\n" /* %0 = H L */ 84 csum >>= 16;
86 " lr %1,%0\n" /* %0 = H L, %1 = H L 0 0 */ 85 return (__force __sum16) ~csum;
87 " srdl %1,16\n" /* %0 = H L, %1 = 0 H L 0 */
88 " alr %1,%N1\n" /* %0 = H L, %1 = L H L 0 */
89 " alr %0,%1\n" /* %0 = H+L+C L+H */
90 " srl %0,16\n" /* %0 = H+L+C */
91 : "+&d" (sum), "=d" (rp) : : "cc");
92#else /* __s390x__ */
93 asm volatile(
94 " sr 3,3\n" /* %0 = H*65536 + L */
95 " lr 2,%0\n" /* %0 = H L, 2/3 = H L / 0 0 */
96 " srdl 2,16\n" /* %0 = H L, 2/3 = 0 H / L 0 */
97 " alr 2,3\n" /* %0 = H L, 2/3 = L H / L 0 */
98 " alr %0,2\n" /* %0 = H+L+C L+H */
99 " srl %0,16\n" /* %0 = H+L+C */
100 : "+&d" (sum) : : "cc", "2", "3");
101#endif /* __s390x__ */
102 return (__force __sum16) ~sum;
103} 86}
104 87
105/* 88/*
diff --git a/arch/s390/include/asm/chsc.h b/arch/s390/include/asm/chsc.h
index 807997f7414b..4943654ed7fd 100644
--- a/arch/s390/include/asm/chsc.h
+++ b/arch/s390/include/asm/chsc.h
@@ -125,4 +125,32 @@ struct chsc_cpd_info {
125#define CHSC_INFO_CPD _IOWR(CHSC_IOCTL_MAGIC, 0x87, struct chsc_cpd_info) 125#define CHSC_INFO_CPD _IOWR(CHSC_IOCTL_MAGIC, 0x87, struct chsc_cpd_info)
126#define CHSC_INFO_DCAL _IOWR(CHSC_IOCTL_MAGIC, 0x88, struct chsc_dcal) 126#define CHSC_INFO_DCAL _IOWR(CHSC_IOCTL_MAGIC, 0x88, struct chsc_dcal)
127 127
128#ifdef __KERNEL__
129
130struct css_general_char {
131 u64 : 12;
132 u32 dynio : 1; /* bit 12 */
133 u32 : 28;
134 u32 aif : 1; /* bit 41 */
135 u32 : 3;
136 u32 mcss : 1; /* bit 45 */
137 u32 fcs : 1; /* bit 46 */
138 u32 : 1;
139 u32 ext_mb : 1; /* bit 48 */
140 u32 : 7;
141 u32 aif_tdd : 1; /* bit 56 */
142 u32 : 1;
143 u32 qebsm : 1; /* bit 58 */
144 u32 : 8;
145 u32 aif_osa : 1; /* bit 67 */
146 u32 : 14;
147 u32 cib : 1; /* bit 82 */
148 u32 : 5;
149 u32 fcx : 1; /* bit 88 */
150 u32 : 7;
151}__attribute__((packed));
152
153extern struct css_general_char css_general_characteristics;
154
155#endif /* __KERNEL__ */
128#endif 156#endif
diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h
index 619bf94b11f1..e85679af54dd 100644
--- a/arch/s390/include/asm/cio.h
+++ b/arch/s390/include/asm/cio.h
@@ -15,228 +15,7 @@
15#define LPM_ANYPATH 0xff 15#define LPM_ANYPATH 0xff
16#define __MAX_CSSID 0 16#define __MAX_CSSID 0
17 17
18/** 18#include <asm/scsw.h>
19 * struct cmd_scsw - command-mode subchannel status word
20 * @key: subchannel key
21 * @sctl: suspend control
22 * @eswf: esw format
23 * @cc: deferred condition code
24 * @fmt: format
25 * @pfch: prefetch
26 * @isic: initial-status interruption control
27 * @alcc: address-limit checking control
28 * @ssi: suppress-suspended interruption
29 * @zcc: zero condition code
30 * @ectl: extended control
31 * @pno: path not operational
32 * @res: reserved
33 * @fctl: function control
34 * @actl: activity control
35 * @stctl: status control
36 * @cpa: channel program address
37 * @dstat: device status
38 * @cstat: subchannel status
39 * @count: residual count
40 */
41struct cmd_scsw {
42 __u32 key : 4;
43 __u32 sctl : 1;
44 __u32 eswf : 1;
45 __u32 cc : 2;
46 __u32 fmt : 1;
47 __u32 pfch : 1;
48 __u32 isic : 1;
49 __u32 alcc : 1;
50 __u32 ssi : 1;
51 __u32 zcc : 1;
52 __u32 ectl : 1;
53 __u32 pno : 1;
54 __u32 res : 1;
55 __u32 fctl : 3;
56 __u32 actl : 7;
57 __u32 stctl : 5;
58 __u32 cpa;
59 __u32 dstat : 8;
60 __u32 cstat : 8;
61 __u32 count : 16;
62} __attribute__ ((packed));
63
64/**
65 * struct tm_scsw - transport-mode subchannel status word
66 * @key: subchannel key
67 * @eswf: esw format
68 * @cc: deferred condition code
69 * @fmt: format
70 * @x: IRB-format control
71 * @q: interrogate-complete
72 * @ectl: extended control
73 * @pno: path not operational
74 * @fctl: function control
75 * @actl: activity control
76 * @stctl: status control
77 * @tcw: TCW address
78 * @dstat: device status
79 * @cstat: subchannel status
80 * @fcxs: FCX status
81 * @schxs: subchannel-extended status
82 */
83struct tm_scsw {
84 u32 key:4;
85 u32 :1;
86 u32 eswf:1;
87 u32 cc:2;
88 u32 fmt:3;
89 u32 x:1;
90 u32 q:1;
91 u32 :1;
92 u32 ectl:1;
93 u32 pno:1;
94 u32 :1;
95 u32 fctl:3;
96 u32 actl:7;
97 u32 stctl:5;
98 u32 tcw;
99 u32 dstat:8;
100 u32 cstat:8;
101 u32 fcxs:8;
102 u32 schxs:8;
103} __attribute__ ((packed));
104
105/**
106 * union scsw - subchannel status word
107 * @cmd: command-mode SCSW
108 * @tm: transport-mode SCSW
109 */
110union scsw {
111 struct cmd_scsw cmd;
112 struct tm_scsw tm;
113} __attribute__ ((packed));
114
115int scsw_is_tm(union scsw *scsw);
116u32 scsw_key(union scsw *scsw);
117u32 scsw_eswf(union scsw *scsw);
118u32 scsw_cc(union scsw *scsw);
119u32 scsw_ectl(union scsw *scsw);
120u32 scsw_pno(union scsw *scsw);
121u32 scsw_fctl(union scsw *scsw);
122u32 scsw_actl(union scsw *scsw);
123u32 scsw_stctl(union scsw *scsw);
124u32 scsw_dstat(union scsw *scsw);
125u32 scsw_cstat(union scsw *scsw);
126int scsw_is_solicited(union scsw *scsw);
127int scsw_is_valid_key(union scsw *scsw);
128int scsw_is_valid_eswf(union scsw *scsw);
129int scsw_is_valid_cc(union scsw *scsw);
130int scsw_is_valid_ectl(union scsw *scsw);
131int scsw_is_valid_pno(union scsw *scsw);
132int scsw_is_valid_fctl(union scsw *scsw);
133int scsw_is_valid_actl(union scsw *scsw);
134int scsw_is_valid_stctl(union scsw *scsw);
135int scsw_is_valid_dstat(union scsw *scsw);
136int scsw_is_valid_cstat(union scsw *scsw);
137int scsw_cmd_is_valid_key(union scsw *scsw);
138int scsw_cmd_is_valid_sctl(union scsw *scsw);
139int scsw_cmd_is_valid_eswf(union scsw *scsw);
140int scsw_cmd_is_valid_cc(union scsw *scsw);
141int scsw_cmd_is_valid_fmt(union scsw *scsw);
142int scsw_cmd_is_valid_pfch(union scsw *scsw);
143int scsw_cmd_is_valid_isic(union scsw *scsw);
144int scsw_cmd_is_valid_alcc(union scsw *scsw);
145int scsw_cmd_is_valid_ssi(union scsw *scsw);
146int scsw_cmd_is_valid_zcc(union scsw *scsw);
147int scsw_cmd_is_valid_ectl(union scsw *scsw);
148int scsw_cmd_is_valid_pno(union scsw *scsw);
149int scsw_cmd_is_valid_fctl(union scsw *scsw);
150int scsw_cmd_is_valid_actl(union scsw *scsw);
151int scsw_cmd_is_valid_stctl(union scsw *scsw);
152int scsw_cmd_is_valid_dstat(union scsw *scsw);
153int scsw_cmd_is_valid_cstat(union scsw *scsw);
154int scsw_cmd_is_solicited(union scsw *scsw);
155int scsw_tm_is_valid_key(union scsw *scsw);
156int scsw_tm_is_valid_eswf(union scsw *scsw);
157int scsw_tm_is_valid_cc(union scsw *scsw);
158int scsw_tm_is_valid_fmt(union scsw *scsw);
159int scsw_tm_is_valid_x(union scsw *scsw);
160int scsw_tm_is_valid_q(union scsw *scsw);
161int scsw_tm_is_valid_ectl(union scsw *scsw);
162int scsw_tm_is_valid_pno(union scsw *scsw);
163int scsw_tm_is_valid_fctl(union scsw *scsw);
164int scsw_tm_is_valid_actl(union scsw *scsw);
165int scsw_tm_is_valid_stctl(union scsw *scsw);
166int scsw_tm_is_valid_dstat(union scsw *scsw);
167int scsw_tm_is_valid_cstat(union scsw *scsw);
168int scsw_tm_is_valid_fcxs(union scsw *scsw);
169int scsw_tm_is_valid_schxs(union scsw *scsw);
170int scsw_tm_is_solicited(union scsw *scsw);
171
172#define SCSW_FCTL_CLEAR_FUNC 0x1
173#define SCSW_FCTL_HALT_FUNC 0x2
174#define SCSW_FCTL_START_FUNC 0x4
175
176#define SCSW_ACTL_SUSPENDED 0x1
177#define SCSW_ACTL_DEVACT 0x2
178#define SCSW_ACTL_SCHACT 0x4
179#define SCSW_ACTL_CLEAR_PEND 0x8
180#define SCSW_ACTL_HALT_PEND 0x10
181#define SCSW_ACTL_START_PEND 0x20
182#define SCSW_ACTL_RESUME_PEND 0x40
183
184#define SCSW_STCTL_STATUS_PEND 0x1
185#define SCSW_STCTL_SEC_STATUS 0x2
186#define SCSW_STCTL_PRIM_STATUS 0x4
187#define SCSW_STCTL_INTER_STATUS 0x8
188#define SCSW_STCTL_ALERT_STATUS 0x10
189
190#define DEV_STAT_ATTENTION 0x80
191#define DEV_STAT_STAT_MOD 0x40
192#define DEV_STAT_CU_END 0x20
193#define DEV_STAT_BUSY 0x10
194#define DEV_STAT_CHN_END 0x08
195#define DEV_STAT_DEV_END 0x04
196#define DEV_STAT_UNIT_CHECK 0x02
197#define DEV_STAT_UNIT_EXCEP 0x01
198
199#define SCHN_STAT_PCI 0x80
200#define SCHN_STAT_INCORR_LEN 0x40
201#define SCHN_STAT_PROG_CHECK 0x20
202#define SCHN_STAT_PROT_CHECK 0x10
203#define SCHN_STAT_CHN_DATA_CHK 0x08
204#define SCHN_STAT_CHN_CTRL_CHK 0x04
205#define SCHN_STAT_INTF_CTRL_CHK 0x02
206#define SCHN_STAT_CHAIN_CHECK 0x01
207
208/*
209 * architectured values for first sense byte
210 */
211#define SNS0_CMD_REJECT 0x80
212#define SNS_CMD_REJECT SNS0_CMD_REJEC
213#define SNS0_INTERVENTION_REQ 0x40
214#define SNS0_BUS_OUT_CHECK 0x20
215#define SNS0_EQUIPMENT_CHECK 0x10
216#define SNS0_DATA_CHECK 0x08
217#define SNS0_OVERRUN 0x04
218#define SNS0_INCOMPL_DOMAIN 0x01
219
220/*
221 * architectured values for second sense byte
222 */
223#define SNS1_PERM_ERR 0x80
224#define SNS1_INV_TRACK_FORMAT 0x40
225#define SNS1_EOC 0x20
226#define SNS1_MESSAGE_TO_OPER 0x10
227#define SNS1_NO_REC_FOUND 0x08
228#define SNS1_FILE_PROTECTED 0x04
229#define SNS1_WRITE_INHIBITED 0x02
230#define SNS1_INPRECISE_END 0x01
231
232/*
233 * architectured values for third sense byte
234 */
235#define SNS2_REQ_INH_WRITE 0x80
236#define SNS2_CORRECTABLE 0x40
237#define SNS2_FIRST_LOG_ERR 0x20
238#define SNS2_ENV_DATA_PRESENT 0x10
239#define SNS2_INPRECISE_END 0x04
240 19
241/** 20/**
242 * struct ccw1 - channel command word 21 * struct ccw1 - channel command word
diff --git a/arch/s390/include/asm/cpu.h b/arch/s390/include/asm/cpu.h
new file mode 100644
index 000000000000..471234b90574
--- /dev/null
+++ b/arch/s390/include/asm/cpu.h
@@ -0,0 +1,26 @@
1/*
2 * Copyright IBM Corp. 2000,2009
3 * Author(s): Hartmut Penner <hp@de.ibm.com>,
4 * Martin Schwidefsky <schwidefsky@de.ibm.com>,
5 * Christian Ehrhardt <ehrhardt@de.ibm.com>,
6 */
7
8#ifndef _ASM_S390_CPU_H
9#define _ASM_S390_CPU_H
10
11#define MAX_CPU_ADDRESS 255
12
13#ifndef __ASSEMBLY__
14
15#include <linux/types.h>
16
17struct cpuid
18{
19 unsigned int version : 8;
20 unsigned int ident : 24;
21 unsigned int machine : 16;
22 unsigned int unused : 16;
23} __packed;
24
25#endif /* __ASSEMBLY__ */
26#endif /* _ASM_S390_CPU_H */
diff --git a/arch/s390/include/asm/cpuid.h b/arch/s390/include/asm/cpuid.h
deleted file mode 100644
index 07836a2e5222..000000000000
--- a/arch/s390/include/asm/cpuid.h
+++ /dev/null
@@ -1,25 +0,0 @@
1/*
2 * Copyright IBM Corp. 2000,2009
3 * Author(s): Hartmut Penner <hp@de.ibm.com>,
4 * Martin Schwidefsky <schwidefsky@de.ibm.com>
5 * Christian Ehrhardt <ehrhardt@de.ibm.com>
6 */
7
8#ifndef _ASM_S390_CPUID_H_
9#define _ASM_S390_CPUID_H_
10
11/*
12 * CPU type and hardware bug flags. Kept separately for each CPU.
13 * Members of this structure are referenced in head.S, so think twice
14 * before touching them. [mj]
15 */
16
17typedef struct
18{
19 unsigned int version : 8;
20 unsigned int ident : 24;
21 unsigned int machine : 16;
22 unsigned int unused : 16;
23} __attribute__ ((packed)) cpuid_t;
24
25#endif /* _ASM_S390_CPUID_H_ */
diff --git a/arch/s390/include/asm/debug.h b/arch/s390/include/asm/debug.h
index 31ed5686a968..18124b75a7ab 100644
--- a/arch/s390/include/asm/debug.h
+++ b/arch/s390/include/asm/debug.h
@@ -167,6 +167,10 @@ debug_text_event(debug_info_t* id, int level, const char* txt)
167 return debug_event_common(id,level,txt,strlen(txt)); 167 return debug_event_common(id,level,txt,strlen(txt));
168} 168}
169 169
170/*
171 * IMPORTANT: Use "%s" in sprintf format strings with care! Only pointers are
172 * stored in the s390dbf. See Documentation/s390/s390dbf.txt for more details!
173 */
170extern debug_entry_t * 174extern debug_entry_t *
171debug_sprintf_event(debug_info_t* id,int level,char *string,...) 175debug_sprintf_event(debug_info_t* id,int level,char *string,...)
172 __attribute__ ((format(printf, 3, 4))); 176 __attribute__ ((format(printf, 3, 4)));
@@ -206,7 +210,10 @@ debug_text_exception(debug_info_t* id, int level, const char* txt)
206 return debug_exception_common(id,level,txt,strlen(txt)); 210 return debug_exception_common(id,level,txt,strlen(txt));
207} 211}
208 212
209 213/*
214 * IMPORTANT: Use "%s" in sprintf format strings with care! Only pointers are
215 * stored in the s390dbf. See Documentation/s390/s390dbf.txt for more details!
216 */
210extern debug_entry_t * 217extern debug_entry_t *
211debug_sprintf_exception(debug_info_t* id,int level,char *string,...) 218debug_sprintf_exception(debug_info_t* id,int level,char *string,...)
212 __attribute__ ((format(printf, 3, 4))); 219 __attribute__ ((format(printf, 3, 4)));
diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h
index 89ec7056da28..498bc3892385 100644
--- a/arch/s390/include/asm/hardirq.h
+++ b/arch/s390/include/asm/hardirq.h
@@ -18,13 +18,6 @@
18#include <linux/interrupt.h> 18#include <linux/interrupt.h>
19#include <asm/lowcore.h> 19#include <asm/lowcore.h>
20 20
21/* irq_cpustat_t is unused currently, but could be converted
22 * into a percpu variable instead of storing softirq_pending
23 * on the lowcore */
24typedef struct {
25 unsigned int __softirq_pending;
26} irq_cpustat_t;
27
28#define local_softirq_pending() (S390_lowcore.softirq_pending) 21#define local_softirq_pending() (S390_lowcore.softirq_pending)
29 22
30#define __ARCH_IRQ_STAT 23#define __ARCH_IRQ_STAT
diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h
index 1171e6d144a3..5e95d95450b3 100644
--- a/arch/s390/include/asm/ipl.h
+++ b/arch/s390/include/asm/ipl.h
@@ -57,6 +57,8 @@ struct ipl_block_fcp {
57} __attribute__((packed)); 57} __attribute__((packed));
58 58
59#define DIAG308_VMPARM_SIZE 64 59#define DIAG308_VMPARM_SIZE 64
60#define DIAG308_SCPDATA_SIZE (PAGE_SIZE - (sizeof(struct ipl_list_hdr) + \
61 offsetof(struct ipl_block_fcp, scp_data)))
60 62
61struct ipl_block_ccw { 63struct ipl_block_ccw {
62 u8 load_parm[8]; 64 u8 load_parm[8];
@@ -91,7 +93,8 @@ extern void do_halt(void);
91extern void do_poff(void); 93extern void do_poff(void);
92extern void ipl_save_parameters(void); 94extern void ipl_save_parameters(void);
93extern void ipl_update_parameters(void); 95extern void ipl_update_parameters(void);
94extern void get_ipl_vmparm(char *); 96extern size_t append_ipl_vmparm(char *, size_t);
97extern size_t append_ipl_scpdata(char *, size_t);
95 98
96enum { 99enum {
97 IPL_DEVNO_VALID = 1, 100 IPL_DEVNO_VALID = 1,
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 1cd02f6073a0..698988f69403 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -17,7 +17,7 @@
17#include <linux/interrupt.h> 17#include <linux/interrupt.h>
18#include <linux/kvm_host.h> 18#include <linux/kvm_host.h>
19#include <asm/debug.h> 19#include <asm/debug.h>
20#include <asm/cpuid.h> 20#include <asm/cpu.h>
21 21
22#define KVM_MAX_VCPUS 64 22#define KVM_MAX_VCPUS 64
23#define KVM_MEMORY_SLOTS 32 23#define KVM_MEMORY_SLOTS 32
@@ -217,8 +217,8 @@ struct kvm_vcpu_arch {
217 struct hrtimer ckc_timer; 217 struct hrtimer ckc_timer;
218 struct tasklet_struct tasklet; 218 struct tasklet_struct tasklet;
219 union { 219 union {
220 cpuid_t cpu_id; 220 struct cpuid cpu_id;
221 u64 stidp_data; 221 u64 stidp_data;
222 }; 222 };
223}; 223};
224 224
diff --git a/arch/s390/include/asm/kvm_virtio.h b/arch/s390/include/asm/kvm_virtio.h
index 0503936f101f..acdfdff26611 100644
--- a/arch/s390/include/asm/kvm_virtio.h
+++ b/arch/s390/include/asm/kvm_virtio.h
@@ -54,14 +54,4 @@ struct kvm_vqconfig {
54 * This is pagesize for historical reasons. */ 54 * This is pagesize for historical reasons. */
55#define KVM_S390_VIRTIO_RING_ALIGN 4096 55#define KVM_S390_VIRTIO_RING_ALIGN 4096
56 56
57#ifdef __KERNEL__
58/* early virtio console setup */
59#ifdef CONFIG_S390_GUEST
60extern void s390_virtio_console_init(void);
61#else
62static inline void s390_virtio_console_init(void)
63{
64}
65#endif /* CONFIG_VIRTIO_CONSOLE */
66#endif /* __KERNEL__ */
67#endif 57#endif
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index 5046ad6b7a63..6bc9426a6fbf 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -132,7 +132,7 @@
132 132
133#ifndef __ASSEMBLY__ 133#ifndef __ASSEMBLY__
134 134
135#include <asm/cpuid.h> 135#include <asm/cpu.h>
136#include <asm/ptrace.h> 136#include <asm/ptrace.h>
137#include <linux/types.h> 137#include <linux/types.h>
138 138
@@ -275,7 +275,7 @@ struct _lowcore
275 __u32 user_exec_asce; /* 0x02ac */ 275 __u32 user_exec_asce; /* 0x02ac */
276 276
277 /* SMP info area */ 277 /* SMP info area */
278 cpuid_t cpu_id; /* 0x02b0 */ 278 struct cpuid cpu_id; /* 0x02b0 */
279 __u32 cpu_nr; /* 0x02b8 */ 279 __u32 cpu_nr; /* 0x02b8 */
280 __u32 softirq_pending; /* 0x02bc */ 280 __u32 softirq_pending; /* 0x02bc */
281 __u32 percpu_offset; /* 0x02c0 */ 281 __u32 percpu_offset; /* 0x02c0 */
@@ -380,7 +380,7 @@ struct _lowcore
380 __u64 user_exec_asce; /* 0x0318 */ 380 __u64 user_exec_asce; /* 0x0318 */
381 381
382 /* SMP info area */ 382 /* SMP info area */
383 cpuid_t cpu_id; /* 0x0320 */ 383 struct cpuid cpu_id; /* 0x0320 */
384 __u32 cpu_nr; /* 0x0328 */ 384 __u32 cpu_nr; /* 0x0328 */
385 __u32 softirq_pending; /* 0x032c */ 385 __u32 softirq_pending; /* 0x032c */
386 __u64 percpu_offset; /* 0x0330 */ 386 __u64 percpu_offset; /* 0x0330 */
diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h
index 3b59216e6284..03be99919d62 100644
--- a/arch/s390/include/asm/mmu.h
+++ b/arch/s390/include/asm/mmu.h
@@ -2,6 +2,7 @@
2#define __MMU_H 2#define __MMU_H
3 3
4typedef struct { 4typedef struct {
5 spinlock_t list_lock;
5 struct list_head crst_list; 6 struct list_head crst_list;
6 struct list_head pgtable_list; 7 struct list_head pgtable_list;
7 unsigned long asce_bits; 8 unsigned long asce_bits;
diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
index 3e3594d01f83..5e9daf5d7f22 100644
--- a/arch/s390/include/asm/page.h
+++ b/arch/s390/include/asm/page.h
@@ -125,8 +125,6 @@ page_get_storage_key(unsigned long addr)
125 return skey; 125 return skey;
126} 126}
127 127
128#ifdef CONFIG_PAGE_STATES
129
130struct page; 128struct page;
131void arch_free_page(struct page *page, int order); 129void arch_free_page(struct page *page, int order);
132void arch_alloc_page(struct page *page, int order); 130void arch_alloc_page(struct page *page, int order);
@@ -134,8 +132,6 @@ void arch_alloc_page(struct page *page, int order);
134#define HAVE_ARCH_FREE_PAGE 132#define HAVE_ARCH_FREE_PAGE
135#define HAVE_ARCH_ALLOC_PAGE 133#define HAVE_ARCH_ALLOC_PAGE
136 134
137#endif
138
139#endif /* !__ASSEMBLY__ */ 135#endif /* !__ASSEMBLY__ */
140 136
141#define __PAGE_OFFSET 0x0UL 137#define __PAGE_OFFSET 0x0UL
diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h
index b2658b9220fe..ddad5903341c 100644
--- a/arch/s390/include/asm/pgalloc.h
+++ b/arch/s390/include/asm/pgalloc.h
@@ -140,6 +140,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
140 140
141static inline pgd_t *pgd_alloc(struct mm_struct *mm) 141static inline pgd_t *pgd_alloc(struct mm_struct *mm)
142{ 142{
143 spin_lock_init(&mm->context.list_lock);
143 INIT_LIST_HEAD(&mm->context.crst_list); 144 INIT_LIST_HEAD(&mm->context.crst_list);
144 INIT_LIST_HEAD(&mm->context.pgtable_list); 145 INIT_LIST_HEAD(&mm->context.pgtable_list);
145 return (pgd_t *) crst_table_alloc(mm, s390_noexec); 146 return (pgd_t *) crst_table_alloc(mm, s390_noexec);
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index c139fa7b8e89..cf8eed3fa779 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -14,7 +14,7 @@
14#define __ASM_S390_PROCESSOR_H 14#define __ASM_S390_PROCESSOR_H
15 15
16#include <linux/linkage.h> 16#include <linux/linkage.h>
17#include <asm/cpuid.h> 17#include <asm/cpu.h>
18#include <asm/page.h> 18#include <asm/page.h>
19#include <asm/ptrace.h> 19#include <asm/ptrace.h>
20#include <asm/setup.h> 20#include <asm/setup.h>
@@ -26,7 +26,7 @@
26 */ 26 */
27#define current_text_addr() ({ void *pc; asm("basr %0,0" : "=a" (pc)); pc; }) 27#define current_text_addr() ({ void *pc; asm("basr %0,0" : "=a" (pc)); pc; })
28 28
29static inline void get_cpu_id(cpuid_t *ptr) 29static inline void get_cpu_id(struct cpuid *ptr)
30{ 30{
31 asm volatile("stidp 0(%1)" : "=m" (*ptr) : "a" (ptr)); 31 asm volatile("stidp 0(%1)" : "=m" (*ptr) : "a" (ptr));
32} 32}
diff --git a/arch/s390/include/asm/scatterlist.h b/arch/s390/include/asm/scatterlist.h
index 29ec8e28c8df..35d786fe93ae 100644
--- a/arch/s390/include/asm/scatterlist.h
+++ b/arch/s390/include/asm/scatterlist.h
@@ -1,19 +1 @@
1#ifndef _ASMS390_SCATTERLIST_H #include <asm-generic/scatterlist.h>
2#define _ASMS390_SCATTERLIST_H
3
4struct scatterlist {
5#ifdef CONFIG_DEBUG_SG
6 unsigned long sg_magic;
7#endif
8 unsigned long page_link;
9 unsigned int offset;
10 unsigned int length;
11};
12
13#ifdef __s390x__
14#define ISA_DMA_THRESHOLD (0xffffffffffffffffUL)
15#else
16#define ISA_DMA_THRESHOLD (0xffffffffUL)
17#endif
18
19#endif /* _ASMS390X_SCATTERLIST_H */
diff --git a/arch/s390/include/asm/scsw.h b/arch/s390/include/asm/scsw.h
new file mode 100644
index 000000000000..de389cb54d28
--- /dev/null
+++ b/arch/s390/include/asm/scsw.h
@@ -0,0 +1,956 @@
1/*
2 * Helper functions for scsw access.
3 *
4 * Copyright IBM Corp. 2008,2009
5 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
6 */
7
8#ifndef _ASM_S390_SCSW_H_
9#define _ASM_S390_SCSW_H_
10
11#include <linux/types.h>
12#include <asm/chsc.h>
13#include <asm/cio.h>
14
15/**
16 * struct cmd_scsw - command-mode subchannel status word
17 * @key: subchannel key
18 * @sctl: suspend control
19 * @eswf: esw format
20 * @cc: deferred condition code
21 * @fmt: format
22 * @pfch: prefetch
23 * @isic: initial-status interruption control
24 * @alcc: address-limit checking control
25 * @ssi: suppress-suspended interruption
26 * @zcc: zero condition code
27 * @ectl: extended control
28 * @pno: path not operational
29 * @res: reserved
30 * @fctl: function control
31 * @actl: activity control
32 * @stctl: status control
33 * @cpa: channel program address
34 * @dstat: device status
35 * @cstat: subchannel status
36 * @count: residual count
37 */
38struct cmd_scsw {
39 __u32 key : 4;
40 __u32 sctl : 1;
41 __u32 eswf : 1;
42 __u32 cc : 2;
43 __u32 fmt : 1;
44 __u32 pfch : 1;
45 __u32 isic : 1;
46 __u32 alcc : 1;
47 __u32 ssi : 1;
48 __u32 zcc : 1;
49 __u32 ectl : 1;
50 __u32 pno : 1;
51 __u32 res : 1;
52 __u32 fctl : 3;
53 __u32 actl : 7;
54 __u32 stctl : 5;
55 __u32 cpa;
56 __u32 dstat : 8;
57 __u32 cstat : 8;
58 __u32 count : 16;
59} __attribute__ ((packed));
60
61/**
62 * struct tm_scsw - transport-mode subchannel status word
63 * @key: subchannel key
64 * @eswf: esw format
65 * @cc: deferred condition code
66 * @fmt: format
67 * @x: IRB-format control
68 * @q: interrogate-complete
69 * @ectl: extended control
70 * @pno: path not operational
71 * @fctl: function control
72 * @actl: activity control
73 * @stctl: status control
74 * @tcw: TCW address
75 * @dstat: device status
76 * @cstat: subchannel status
77 * @fcxs: FCX status
78 * @schxs: subchannel-extended status
79 */
80struct tm_scsw {
81 u32 key:4;
82 u32 :1;
83 u32 eswf:1;
84 u32 cc:2;
85 u32 fmt:3;
86 u32 x:1;
87 u32 q:1;
88 u32 :1;
89 u32 ectl:1;
90 u32 pno:1;
91 u32 :1;
92 u32 fctl:3;
93 u32 actl:7;
94 u32 stctl:5;
95 u32 tcw;
96 u32 dstat:8;
97 u32 cstat:8;
98 u32 fcxs:8;
99 u32 schxs:8;
100} __attribute__ ((packed));
101
102/**
103 * union scsw - subchannel status word
104 * @cmd: command-mode SCSW
105 * @tm: transport-mode SCSW
106 */
107union scsw {
108 struct cmd_scsw cmd;
109 struct tm_scsw tm;
110} __attribute__ ((packed));
111
112#define SCSW_FCTL_CLEAR_FUNC 0x1
113#define SCSW_FCTL_HALT_FUNC 0x2
114#define SCSW_FCTL_START_FUNC 0x4
115
116#define SCSW_ACTL_SUSPENDED 0x1
117#define SCSW_ACTL_DEVACT 0x2
118#define SCSW_ACTL_SCHACT 0x4
119#define SCSW_ACTL_CLEAR_PEND 0x8
120#define SCSW_ACTL_HALT_PEND 0x10
121#define SCSW_ACTL_START_PEND 0x20
122#define SCSW_ACTL_RESUME_PEND 0x40
123
124#define SCSW_STCTL_STATUS_PEND 0x1
125#define SCSW_STCTL_SEC_STATUS 0x2
126#define SCSW_STCTL_PRIM_STATUS 0x4
127#define SCSW_STCTL_INTER_STATUS 0x8
128#define SCSW_STCTL_ALERT_STATUS 0x10
129
130#define DEV_STAT_ATTENTION 0x80
131#define DEV_STAT_STAT_MOD 0x40
132#define DEV_STAT_CU_END 0x20
133#define DEV_STAT_BUSY 0x10
134#define DEV_STAT_CHN_END 0x08
135#define DEV_STAT_DEV_END 0x04
136#define DEV_STAT_UNIT_CHECK 0x02
137#define DEV_STAT_UNIT_EXCEP 0x01
138
139#define SCHN_STAT_PCI 0x80
140#define SCHN_STAT_INCORR_LEN 0x40
141#define SCHN_STAT_PROG_CHECK 0x20
142#define SCHN_STAT_PROT_CHECK 0x10
143#define SCHN_STAT_CHN_DATA_CHK 0x08
144#define SCHN_STAT_CHN_CTRL_CHK 0x04
145#define SCHN_STAT_INTF_CTRL_CHK 0x02
146#define SCHN_STAT_CHAIN_CHECK 0x01
147
148/*
149 * architectured values for first sense byte
150 */
151#define SNS0_CMD_REJECT 0x80
152#define SNS_CMD_REJECT SNS0_CMD_REJEC
153#define SNS0_INTERVENTION_REQ 0x40
154#define SNS0_BUS_OUT_CHECK 0x20
155#define SNS0_EQUIPMENT_CHECK 0x10
156#define SNS0_DATA_CHECK 0x08
157#define SNS0_OVERRUN 0x04
158#define SNS0_INCOMPL_DOMAIN 0x01
159
160/*
161 * architectured values for second sense byte
162 */
163#define SNS1_PERM_ERR 0x80
164#define SNS1_INV_TRACK_FORMAT 0x40
165#define SNS1_EOC 0x20
166#define SNS1_MESSAGE_TO_OPER 0x10
167#define SNS1_NO_REC_FOUND 0x08
168#define SNS1_FILE_PROTECTED 0x04
169#define SNS1_WRITE_INHIBITED 0x02
170#define SNS1_INPRECISE_END 0x01
171
172/*
173 * architectured values for third sense byte
174 */
175#define SNS2_REQ_INH_WRITE 0x80
176#define SNS2_CORRECTABLE 0x40
177#define SNS2_FIRST_LOG_ERR 0x20
178#define SNS2_ENV_DATA_PRESENT 0x10
179#define SNS2_INPRECISE_END 0x04
180
181/**
182 * scsw_is_tm - check for transport mode scsw
183 * @scsw: pointer to scsw
184 *
185 * Return non-zero if the specified scsw is a transport mode scsw, zero
186 * otherwise.
187 */
188static inline int scsw_is_tm(union scsw *scsw)
189{
190 return css_general_characteristics.fcx && (scsw->tm.x == 1);
191}
192
193/**
194 * scsw_key - return scsw key field
195 * @scsw: pointer to scsw
196 *
197 * Return the value of the key field of the specified scsw, regardless of
198 * whether it is a transport mode or command mode scsw.
199 */
200static inline u32 scsw_key(union scsw *scsw)
201{
202 if (scsw_is_tm(scsw))
203 return scsw->tm.key;
204 else
205 return scsw->cmd.key;
206}
207
208/**
209 * scsw_eswf - return scsw eswf field
210 * @scsw: pointer to scsw
211 *
212 * Return the value of the eswf field of the specified scsw, regardless of
213 * whether it is a transport mode or command mode scsw.
214 */
215static inline u32 scsw_eswf(union scsw *scsw)
216{
217 if (scsw_is_tm(scsw))
218 return scsw->tm.eswf;
219 else
220 return scsw->cmd.eswf;
221}
222
223/**
224 * scsw_cc - return scsw cc field
225 * @scsw: pointer to scsw
226 *
227 * Return the value of the cc field of the specified scsw, regardless of
228 * whether it is a transport mode or command mode scsw.
229 */
230static inline u32 scsw_cc(union scsw *scsw)
231{
232 if (scsw_is_tm(scsw))
233 return scsw->tm.cc;
234 else
235 return scsw->cmd.cc;
236}
237
238/**
239 * scsw_ectl - return scsw ectl field
240 * @scsw: pointer to scsw
241 *
242 * Return the value of the ectl field of the specified scsw, regardless of
243 * whether it is a transport mode or command mode scsw.
244 */
245static inline u32 scsw_ectl(union scsw *scsw)
246{
247 if (scsw_is_tm(scsw))
248 return scsw->tm.ectl;
249 else
250 return scsw->cmd.ectl;
251}
252
253/**
254 * scsw_pno - return scsw pno field
255 * @scsw: pointer to scsw
256 *
257 * Return the value of the pno field of the specified scsw, regardless of
258 * whether it is a transport mode or command mode scsw.
259 */
260static inline u32 scsw_pno(union scsw *scsw)
261{
262 if (scsw_is_tm(scsw))
263 return scsw->tm.pno;
264 else
265 return scsw->cmd.pno;
266}
267
268/**
269 * scsw_fctl - return scsw fctl field
270 * @scsw: pointer to scsw
271 *
272 * Return the value of the fctl field of the specified scsw, regardless of
273 * whether it is a transport mode or command mode scsw.
274 */
275static inline u32 scsw_fctl(union scsw *scsw)
276{
277 if (scsw_is_tm(scsw))
278 return scsw->tm.fctl;
279 else
280 return scsw->cmd.fctl;
281}
282
283/**
284 * scsw_actl - return scsw actl field
285 * @scsw: pointer to scsw
286 *
287 * Return the value of the actl field of the specified scsw, regardless of
288 * whether it is a transport mode or command mode scsw.
289 */
290static inline u32 scsw_actl(union scsw *scsw)
291{
292 if (scsw_is_tm(scsw))
293 return scsw->tm.actl;
294 else
295 return scsw->cmd.actl;
296}
297
298/**
299 * scsw_stctl - return scsw stctl field
300 * @scsw: pointer to scsw
301 *
302 * Return the value of the stctl field of the specified scsw, regardless of
303 * whether it is a transport mode or command mode scsw.
304 */
305static inline u32 scsw_stctl(union scsw *scsw)
306{
307 if (scsw_is_tm(scsw))
308 return scsw->tm.stctl;
309 else
310 return scsw->cmd.stctl;
311}
312
313/**
314 * scsw_dstat - return scsw dstat field
315 * @scsw: pointer to scsw
316 *
317 * Return the value of the dstat field of the specified scsw, regardless of
318 * whether it is a transport mode or command mode scsw.
319 */
320static inline u32 scsw_dstat(union scsw *scsw)
321{
322 if (scsw_is_tm(scsw))
323 return scsw->tm.dstat;
324 else
325 return scsw->cmd.dstat;
326}
327
328/**
329 * scsw_cstat - return scsw cstat field
330 * @scsw: pointer to scsw
331 *
332 * Return the value of the cstat field of the specified scsw, regardless of
333 * whether it is a transport mode or command mode scsw.
334 */
335static inline u32 scsw_cstat(union scsw *scsw)
336{
337 if (scsw_is_tm(scsw))
338 return scsw->tm.cstat;
339 else
340 return scsw->cmd.cstat;
341}
342
343/**
344 * scsw_cmd_is_valid_key - check key field validity
345 * @scsw: pointer to scsw
346 *
347 * Return non-zero if the key field of the specified command mode scsw is
348 * valid, zero otherwise.
349 */
350static inline int scsw_cmd_is_valid_key(union scsw *scsw)
351{
352 return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
353}
354
355/**
356 * scsw_cmd_is_valid_sctl - check fctl field validity
357 * @scsw: pointer to scsw
358 *
359 * Return non-zero if the fctl field of the specified command mode scsw is
360 * valid, zero otherwise.
361 */
362static inline int scsw_cmd_is_valid_sctl(union scsw *scsw)
363{
364 return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
365}
366
367/**
368 * scsw_cmd_is_valid_eswf - check eswf field validity
369 * @scsw: pointer to scsw
370 *
371 * Return non-zero if the eswf field of the specified command mode scsw is
372 * valid, zero otherwise.
373 */
374static inline int scsw_cmd_is_valid_eswf(union scsw *scsw)
375{
376 return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND);
377}
378
379/**
380 * scsw_cmd_is_valid_cc - check cc field validity
381 * @scsw: pointer to scsw
382 *
383 * Return non-zero if the cc field of the specified command mode scsw is
384 * valid, zero otherwise.
385 */
386static inline int scsw_cmd_is_valid_cc(union scsw *scsw)
387{
388 return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) &&
389 (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND);
390}
391
392/**
393 * scsw_cmd_is_valid_fmt - check fmt field validity
394 * @scsw: pointer to scsw
395 *
396 * Return non-zero if the fmt field of the specified command mode scsw is
397 * valid, zero otherwise.
398 */
399static inline int scsw_cmd_is_valid_fmt(union scsw *scsw)
400{
401 return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
402}
403
404/**
405 * scsw_cmd_is_valid_pfch - check pfch field validity
406 * @scsw: pointer to scsw
407 *
408 * Return non-zero if the pfch field of the specified command mode scsw is
409 * valid, zero otherwise.
410 */
411static inline int scsw_cmd_is_valid_pfch(union scsw *scsw)
412{
413 return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
414}
415
416/**
417 * scsw_cmd_is_valid_isic - check isic field validity
418 * @scsw: pointer to scsw
419 *
420 * Return non-zero if the isic field of the specified command mode scsw is
421 * valid, zero otherwise.
422 */
423static inline int scsw_cmd_is_valid_isic(union scsw *scsw)
424{
425 return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
426}
427
428/**
429 * scsw_cmd_is_valid_alcc - check alcc field validity
430 * @scsw: pointer to scsw
431 *
432 * Return non-zero if the alcc field of the specified command mode scsw is
433 * valid, zero otherwise.
434 */
435static inline int scsw_cmd_is_valid_alcc(union scsw *scsw)
436{
437 return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
438}
439
440/**
441 * scsw_cmd_is_valid_ssi - check ssi field validity
442 * @scsw: pointer to scsw
443 *
444 * Return non-zero if the ssi field of the specified command mode scsw is
445 * valid, zero otherwise.
446 */
447static inline int scsw_cmd_is_valid_ssi(union scsw *scsw)
448{
449 return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
450}
451
452/**
453 * scsw_cmd_is_valid_zcc - check zcc field validity
454 * @scsw: pointer to scsw
455 *
456 * Return non-zero if the zcc field of the specified command mode scsw is
457 * valid, zero otherwise.
458 */
459static inline int scsw_cmd_is_valid_zcc(union scsw *scsw)
460{
461 return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) &&
462 (scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS);
463}
464
465/**
466 * scsw_cmd_is_valid_ectl - check ectl field validity
467 * @scsw: pointer to scsw
468 *
469 * Return non-zero if the ectl field of the specified command mode scsw is
470 * valid, zero otherwise.
471 */
472static inline int scsw_cmd_is_valid_ectl(union scsw *scsw)
473{
474 return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&
475 !(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) &&
476 (scsw->cmd.stctl & SCSW_STCTL_ALERT_STATUS);
477}
478
479/**
480 * scsw_cmd_is_valid_pno - check pno field validity
481 * @scsw: pointer to scsw
482 *
483 * Return non-zero if the pno field of the specified command mode scsw is
484 * valid, zero otherwise.
485 */
486static inline int scsw_cmd_is_valid_pno(union scsw *scsw)
487{
488 return (scsw->cmd.fctl != 0) &&
489 (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&
490 (!(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) ||
491 ((scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) &&
492 (scsw->cmd.actl & SCSW_ACTL_SUSPENDED)));
493}
494
495/**
496 * scsw_cmd_is_valid_fctl - check fctl field validity
497 * @scsw: pointer to scsw
498 *
499 * Return non-zero if the fctl field of the specified command mode scsw is
500 * valid, zero otherwise.
501 */
502static inline int scsw_cmd_is_valid_fctl(union scsw *scsw)
503{
504 /* Only valid if pmcw.dnv == 1*/
505 return 1;
506}
507
508/**
509 * scsw_cmd_is_valid_actl - check actl field validity
510 * @scsw: pointer to scsw
511 *
512 * Return non-zero if the actl field of the specified command mode scsw is
513 * valid, zero otherwise.
514 */
515static inline int scsw_cmd_is_valid_actl(union scsw *scsw)
516{
517 /* Only valid if pmcw.dnv == 1*/
518 return 1;
519}
520
521/**
522 * scsw_cmd_is_valid_stctl - check stctl field validity
523 * @scsw: pointer to scsw
524 *
525 * Return non-zero if the stctl field of the specified command mode scsw is
526 * valid, zero otherwise.
527 */
528static inline int scsw_cmd_is_valid_stctl(union scsw *scsw)
529{
530 /* Only valid if pmcw.dnv == 1*/
531 return 1;
532}
533
534/**
535 * scsw_cmd_is_valid_dstat - check dstat field validity
536 * @scsw: pointer to scsw
537 *
538 * Return non-zero if the dstat field of the specified command mode scsw is
539 * valid, zero otherwise.
540 */
541static inline int scsw_cmd_is_valid_dstat(union scsw *scsw)
542{
543 return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&
544 (scsw->cmd.cc != 3);
545}
546
547/**
548 * scsw_cmd_is_valid_cstat - check cstat field validity
549 * @scsw: pointer to scsw
550 *
551 * Return non-zero if the cstat field of the specified command mode scsw is
552 * valid, zero otherwise.
553 */
554static inline int scsw_cmd_is_valid_cstat(union scsw *scsw)
555{
556 return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&
557 (scsw->cmd.cc != 3);
558}
559
560/**
561 * scsw_tm_is_valid_key - check key field validity
562 * @scsw: pointer to scsw
563 *
564 * Return non-zero if the key field of the specified transport mode scsw is
565 * valid, zero otherwise.
566 */
567static inline int scsw_tm_is_valid_key(union scsw *scsw)
568{
569 return (scsw->tm.fctl & SCSW_FCTL_START_FUNC);
570}
571
572/**
573 * scsw_tm_is_valid_eswf - check eswf field validity
574 * @scsw: pointer to scsw
575 *
576 * Return non-zero if the eswf field of the specified transport mode scsw is
577 * valid, zero otherwise.
578 */
579static inline int scsw_tm_is_valid_eswf(union scsw *scsw)
580{
581 return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND);
582}
583
584/**
585 * scsw_tm_is_valid_cc - check cc field validity
586 * @scsw: pointer to scsw
587 *
588 * Return non-zero if the cc field of the specified transport mode scsw is
589 * valid, zero otherwise.
590 */
591static inline int scsw_tm_is_valid_cc(union scsw *scsw)
592{
593 return (scsw->tm.fctl & SCSW_FCTL_START_FUNC) &&
594 (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND);
595}
596
597/**
598 * scsw_tm_is_valid_fmt - check fmt field validity
599 * @scsw: pointer to scsw
600 *
601 * Return non-zero if the fmt field of the specified transport mode scsw is
602 * valid, zero otherwise.
603 */
604static inline int scsw_tm_is_valid_fmt(union scsw *scsw)
605{
606 return 1;
607}
608
609/**
610 * scsw_tm_is_valid_x - check x field validity
611 * @scsw: pointer to scsw
612 *
613 * Return non-zero if the x field of the specified transport mode scsw is
614 * valid, zero otherwise.
615 */
616static inline int scsw_tm_is_valid_x(union scsw *scsw)
617{
618 return 1;
619}
620
621/**
622 * scsw_tm_is_valid_q - check q field validity
623 * @scsw: pointer to scsw
624 *
625 * Return non-zero if the q field of the specified transport mode scsw is
626 * valid, zero otherwise.
627 */
628static inline int scsw_tm_is_valid_q(union scsw *scsw)
629{
630 return 1;
631}
632
633/**
634 * scsw_tm_is_valid_ectl - check ectl field validity
635 * @scsw: pointer to scsw
636 *
637 * Return non-zero if the ectl field of the specified transport mode scsw is
638 * valid, zero otherwise.
639 */
640static inline int scsw_tm_is_valid_ectl(union scsw *scsw)
641{
642 return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&
643 !(scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) &&
644 (scsw->tm.stctl & SCSW_STCTL_ALERT_STATUS);
645}
646
647/**
648 * scsw_tm_is_valid_pno - check pno field validity
649 * @scsw: pointer to scsw
650 *
651 * Return non-zero if the pno field of the specified transport mode scsw is
652 * valid, zero otherwise.
653 */
654static inline int scsw_tm_is_valid_pno(union scsw *scsw)
655{
656 return (scsw->tm.fctl != 0) &&
657 (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&
658 (!(scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) ||
659 ((scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) &&
660 (scsw->tm.actl & SCSW_ACTL_SUSPENDED)));
661}
662
663/**
664 * scsw_tm_is_valid_fctl - check fctl field validity
665 * @scsw: pointer to scsw
666 *
667 * Return non-zero if the fctl field of the specified transport mode scsw is
668 * valid, zero otherwise.
669 */
670static inline int scsw_tm_is_valid_fctl(union scsw *scsw)
671{
672 /* Only valid if pmcw.dnv == 1*/
673 return 1;
674}
675
676/**
677 * scsw_tm_is_valid_actl - check actl field validity
678 * @scsw: pointer to scsw
679 *
680 * Return non-zero if the actl field of the specified transport mode scsw is
681 * valid, zero otherwise.
682 */
683static inline int scsw_tm_is_valid_actl(union scsw *scsw)
684{
685 /* Only valid if pmcw.dnv == 1*/
686 return 1;
687}
688
689/**
690 * scsw_tm_is_valid_stctl - check stctl field validity
691 * @scsw: pointer to scsw
692 *
693 * Return non-zero if the stctl field of the specified transport mode scsw is
694 * valid, zero otherwise.
695 */
696static inline int scsw_tm_is_valid_stctl(union scsw *scsw)
697{
698 /* Only valid if pmcw.dnv == 1*/
699 return 1;
700}
701
702/**
703 * scsw_tm_is_valid_dstat - check dstat field validity
704 * @scsw: pointer to scsw
705 *
706 * Return non-zero if the dstat field of the specified transport mode scsw is
707 * valid, zero otherwise.
708 */
709static inline int scsw_tm_is_valid_dstat(union scsw *scsw)
710{
711 return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&
712 (scsw->tm.cc != 3);
713}
714
715/**
716 * scsw_tm_is_valid_cstat - check cstat field validity
717 * @scsw: pointer to scsw
718 *
719 * Return non-zero if the cstat field of the specified transport mode scsw is
720 * valid, zero otherwise.
721 */
722static inline int scsw_tm_is_valid_cstat(union scsw *scsw)
723{
724 return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&
725 (scsw->tm.cc != 3);
726}
727
728/**
729 * scsw_tm_is_valid_fcxs - check fcxs field validity
730 * @scsw: pointer to scsw
731 *
732 * Return non-zero if the fcxs field of the specified transport mode scsw is
733 * valid, zero otherwise.
734 */
735static inline int scsw_tm_is_valid_fcxs(union scsw *scsw)
736{
737 return 1;
738}
739
740/**
741 * scsw_tm_is_valid_schxs - check schxs field validity
742 * @scsw: pointer to scsw
743 *
744 * Return non-zero if the schxs field of the specified transport mode scsw is
745 * valid, zero otherwise.
746 */
747static inline int scsw_tm_is_valid_schxs(union scsw *scsw)
748{
749 return (scsw->tm.cstat & (SCHN_STAT_PROG_CHECK |
750 SCHN_STAT_INTF_CTRL_CHK |
751 SCHN_STAT_PROT_CHECK |
752 SCHN_STAT_CHN_DATA_CHK));
753}
754
755/**
756 * scsw_is_valid_actl - check actl field validity
757 * @scsw: pointer to scsw
758 *
759 * Return non-zero if the actl field of the specified scsw is valid,
760 * regardless of whether it is a transport mode or command mode scsw.
761 * Return zero if the field does not contain a valid value.
762 */
763static inline int scsw_is_valid_actl(union scsw *scsw)
764{
765 if (scsw_is_tm(scsw))
766 return scsw_tm_is_valid_actl(scsw);
767 else
768 return scsw_cmd_is_valid_actl(scsw);
769}
770
771/**
772 * scsw_is_valid_cc - check cc field validity
773 * @scsw: pointer to scsw
774 *
775 * Return non-zero if the cc field of the specified scsw is valid,
776 * regardless of whether it is a transport mode or command mode scsw.
777 * Return zero if the field does not contain a valid value.
778 */
779static inline int scsw_is_valid_cc(union scsw *scsw)
780{
781 if (scsw_is_tm(scsw))
782 return scsw_tm_is_valid_cc(scsw);
783 else
784 return scsw_cmd_is_valid_cc(scsw);
785}
786
787/**
788 * scsw_is_valid_cstat - check cstat field validity
789 * @scsw: pointer to scsw
790 *
791 * Return non-zero if the cstat field of the specified scsw is valid,
792 * regardless of whether it is a transport mode or command mode scsw.
793 * Return zero if the field does not contain a valid value.
794 */
795static inline int scsw_is_valid_cstat(union scsw *scsw)
796{
797 if (scsw_is_tm(scsw))
798 return scsw_tm_is_valid_cstat(scsw);
799 else
800 return scsw_cmd_is_valid_cstat(scsw);
801}
802
803/**
804 * scsw_is_valid_dstat - check dstat field validity
805 * @scsw: pointer to scsw
806 *
807 * Return non-zero if the dstat field of the specified scsw is valid,
808 * regardless of whether it is a transport mode or command mode scsw.
809 * Return zero if the field does not contain a valid value.
810 */
811static inline int scsw_is_valid_dstat(union scsw *scsw)
812{
813 if (scsw_is_tm(scsw))
814 return scsw_tm_is_valid_dstat(scsw);
815 else
816 return scsw_cmd_is_valid_dstat(scsw);
817}
818
819/**
820 * scsw_is_valid_ectl - check ectl field validity
821 * @scsw: pointer to scsw
822 *
823 * Return non-zero if the ectl field of the specified scsw is valid,
824 * regardless of whether it is a transport mode or command mode scsw.
825 * Return zero if the field does not contain a valid value.
826 */
827static inline int scsw_is_valid_ectl(union scsw *scsw)
828{
829 if (scsw_is_tm(scsw))
830 return scsw_tm_is_valid_ectl(scsw);
831 else
832 return scsw_cmd_is_valid_ectl(scsw);
833}
834
835/**
836 * scsw_is_valid_eswf - check eswf field validity
837 * @scsw: pointer to scsw
838 *
839 * Return non-zero if the eswf field of the specified scsw is valid,
840 * regardless of whether it is a transport mode or command mode scsw.
841 * Return zero if the field does not contain a valid value.
842 */
843static inline int scsw_is_valid_eswf(union scsw *scsw)
844{
845 if (scsw_is_tm(scsw))
846 return scsw_tm_is_valid_eswf(scsw);
847 else
848 return scsw_cmd_is_valid_eswf(scsw);
849}
850
851/**
852 * scsw_is_valid_fctl - check fctl field validity
853 * @scsw: pointer to scsw
854 *
855 * Return non-zero if the fctl field of the specified scsw is valid,
856 * regardless of whether it is a transport mode or command mode scsw.
857 * Return zero if the field does not contain a valid value.
858 */
859static inline int scsw_is_valid_fctl(union scsw *scsw)
860{
861 if (scsw_is_tm(scsw))
862 return scsw_tm_is_valid_fctl(scsw);
863 else
864 return scsw_cmd_is_valid_fctl(scsw);
865}
866
867/**
868 * scsw_is_valid_key - check key field validity
869 * @scsw: pointer to scsw
870 *
871 * Return non-zero if the key field of the specified scsw is valid,
872 * regardless of whether it is a transport mode or command mode scsw.
873 * Return zero if the field does not contain a valid value.
874 */
875static inline int scsw_is_valid_key(union scsw *scsw)
876{
877 if (scsw_is_tm(scsw))
878 return scsw_tm_is_valid_key(scsw);
879 else
880 return scsw_cmd_is_valid_key(scsw);
881}
882
883/**
884 * scsw_is_valid_pno - check pno field validity
885 * @scsw: pointer to scsw
886 *
887 * Return non-zero if the pno field of the specified scsw is valid,
888 * regardless of whether it is a transport mode or command mode scsw.
889 * Return zero if the field does not contain a valid value.
890 */
891static inline int scsw_is_valid_pno(union scsw *scsw)
892{
893 if (scsw_is_tm(scsw))
894 return scsw_tm_is_valid_pno(scsw);
895 else
896 return scsw_cmd_is_valid_pno(scsw);
897}
898
899/**
900 * scsw_is_valid_stctl - check stctl field validity
901 * @scsw: pointer to scsw
902 *
903 * Return non-zero if the stctl field of the specified scsw is valid,
904 * regardless of whether it is a transport mode or command mode scsw.
905 * Return zero if the field does not contain a valid value.
906 */
907static inline int scsw_is_valid_stctl(union scsw *scsw)
908{
909 if (scsw_is_tm(scsw))
910 return scsw_tm_is_valid_stctl(scsw);
911 else
912 return scsw_cmd_is_valid_stctl(scsw);
913}
914
915/**
916 * scsw_cmd_is_solicited - check for solicited scsw
917 * @scsw: pointer to scsw
918 *
919 * Return non-zero if the command mode scsw indicates that the associated
920 * status condition is solicited, zero if it is unsolicited.
921 */
922static inline int scsw_cmd_is_solicited(union scsw *scsw)
923{
924 return (scsw->cmd.cc != 0) || (scsw->cmd.stctl !=
925 (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS));
926}
927
928/**
929 * scsw_tm_is_solicited - check for solicited scsw
930 * @scsw: pointer to scsw
931 *
932 * Return non-zero if the transport mode scsw indicates that the associated
933 * status condition is solicited, zero if it is unsolicited.
934 */
935static inline int scsw_tm_is_solicited(union scsw *scsw)
936{
937 return (scsw->tm.cc != 0) || (scsw->tm.stctl !=
938 (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS));
939}
940
941/**
942 * scsw_is_solicited - check for solicited scsw
943 * @scsw: pointer to scsw
944 *
945 * Return non-zero if the transport or command mode scsw indicates that the
946 * associated status condition is solicited, zero if it is unsolicited.
947 */
948static inline int scsw_is_solicited(union scsw *scsw)
949{
950 if (scsw_is_tm(scsw))
951 return scsw_tm_is_solicited(scsw);
952 else
953 return scsw_cmd_is_solicited(scsw);
954}
955
956#endif /* _ASM_S390_SCSW_H_ */
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index 38b0fc221ed7..e37478e87286 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -8,7 +8,7 @@
8#ifndef _ASM_S390_SETUP_H 8#ifndef _ASM_S390_SETUP_H
9#define _ASM_S390_SETUP_H 9#define _ASM_S390_SETUP_H
10 10
11#define COMMAND_LINE_SIZE 1024 11#define COMMAND_LINE_SIZE 4096
12 12
13#define ARCH_COMMAND_LINE_SIZE 896 13#define ARCH_COMMAND_LINE_SIZE 896
14 14
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h
index 72137bc907ac..c991fe6473c9 100644
--- a/arch/s390/include/asm/smp.h
+++ b/arch/s390/include/asm/smp.h
@@ -51,32 +51,7 @@ extern void machine_power_off_smp(void);
51#define PROC_CHANGE_PENALTY 20 /* Schedule penalty */ 51#define PROC_CHANGE_PENALTY 20 /* Schedule penalty */
52 52
53#define raw_smp_processor_id() (S390_lowcore.cpu_nr) 53#define raw_smp_processor_id() (S390_lowcore.cpu_nr)
54 54#define cpu_logical_map(cpu) (cpu)
55/*
56 * returns 1 if cpu is in stopped/check stopped state or not operational
57 * returns 0 otherwise
58 */
59static inline int
60smp_cpu_not_running(int cpu)
61{
62 __u32 status;
63
64 switch (signal_processor_ps(&status, 0, cpu, sigp_sense)) {
65 case sigp_order_code_accepted:
66 case sigp_status_stored:
67 /* Check for stopped and check stop state */
68 if (status & 0x50)
69 return 1;
70 break;
71 case sigp_not_operational:
72 return 1;
73 default:
74 break;
75 }
76 return 0;
77}
78
79#define cpu_logical_map(cpu) (cpu)
80 55
81extern int __cpu_disable (void); 56extern int __cpu_disable (void);
82extern void __cpu_die (unsigned int cpu); 57extern void __cpu_die (unsigned int cpu);
@@ -91,11 +66,6 @@ extern void arch_send_call_function_ipi(cpumask_t mask);
91 66
92#endif 67#endif
93 68
94#ifndef CONFIG_SMP
95#define hard_smp_processor_id() 0
96#define smp_cpu_not_running(cpu) 1
97#endif
98
99#ifdef CONFIG_HOTPLUG_CPU 69#ifdef CONFIG_HOTPLUG_CPU
100extern int smp_rescan_cpus(void); 70extern int smp_rescan_cpus(void);
101#else 71#else
diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h
index 4fb83c1cdb77..379661d2f81a 100644
--- a/arch/s390/include/asm/system.h
+++ b/arch/s390/include/asm/system.h
@@ -109,11 +109,7 @@ extern void pfault_fini(void);
109#define pfault_fini() do { } while (0) 109#define pfault_fini() do { } while (0)
110#endif /* CONFIG_PFAULT */ 110#endif /* CONFIG_PFAULT */
111 111
112#ifdef CONFIG_PAGE_STATES
113extern void cmma_init(void); 112extern void cmma_init(void);
114#else
115static inline void cmma_init(void) { }
116#endif
117 113
118#define finish_arch_switch(prev) do { \ 114#define finish_arch_switch(prev) do { \
119 set_fs(current->thread.mm_segment); \ 115 set_fs(current->thread.mm_segment); \
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index cc21e3e20fd7..24aa1cda20ad 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -90,4 +90,18 @@ unsigned long long monotonic_clock(void);
90 90
91extern u64 sched_clock_base_cc; 91extern u64 sched_clock_base_cc;
92 92
93/**
94 * get_clock_monotonic - returns current time in clock rate units
95 *
96 * The caller must ensure that preemption is disabled.
97 * The clock and sched_clock_base get changed via stop_machine.
98 * Therefore preemption must be disabled when calling this
99 * function, otherwise the returned value is not guaranteed to
100 * be monotonic.
101 */
102static inline unsigned long long get_clock_monotonic(void)
103{
104 return get_clock_xt() - sched_clock_base_cc;
105}
106
93#endif 107#endif
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index c75ed43b1a18..c7be8e10b87e 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -32,7 +32,7 @@ extra-y += head.o init_task.o vmlinux.lds
32 32
33obj-$(CONFIG_MODULES) += s390_ksyms.o module.o 33obj-$(CONFIG_MODULES) += s390_ksyms.o module.o
34obj-$(CONFIG_SMP) += smp.o topology.o 34obj-$(CONFIG_SMP) += smp.o topology.o
35 35obj-$(CONFIG_HIBERNATION) += suspend.o swsusp_asm64.o
36obj-$(CONFIG_AUDIT) += audit.o 36obj-$(CONFIG_AUDIT) += audit.o
37compat-obj-$(CONFIG_AUDIT) += compat_audit.o 37compat-obj-$(CONFIG_AUDIT) += compat_audit.o
38obj-$(CONFIG_COMPAT) += compat_linux.o compat_signal.o \ 38obj-$(CONFIG_COMPAT) += compat_linux.o compat_signal.o \
@@ -41,7 +41,7 @@ obj-$(CONFIG_COMPAT) += compat_linux.o compat_signal.o \
41 41
42obj-$(CONFIG_STACKTRACE) += stacktrace.o 42obj-$(CONFIG_STACKTRACE) += stacktrace.o
43obj-$(CONFIG_KPROBES) += kprobes.o 43obj-$(CONFIG_KPROBES) += kprobes.o
44obj-$(CONFIG_FUNCTION_TRACER) += mcount.o 44obj-$(CONFIG_FUNCTION_TRACER) += $(if $(CONFIG_64BIT),mcount64.o,mcount.o)
45obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o 45obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
46obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o 46obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
47 47
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index cae14c499511..bf8b4ae7ff2d 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -6,6 +6,9 @@
6 * Heiko Carstens <heiko.carstens@de.ibm.com> 6 * Heiko Carstens <heiko.carstens@de.ibm.com>
7 */ 7 */
8 8
9#define KMSG_COMPONENT "setup"
10#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
11
9#include <linux/compiler.h> 12#include <linux/compiler.h>
10#include <linux/init.h> 13#include <linux/init.h>
11#include <linux/errno.h> 14#include <linux/errno.h>
@@ -16,6 +19,7 @@
16#include <linux/module.h> 19#include <linux/module.h>
17#include <linux/pfn.h> 20#include <linux/pfn.h>
18#include <linux/uaccess.h> 21#include <linux/uaccess.h>
22#include <linux/kernel.h>
19#include <asm/ebcdic.h> 23#include <asm/ebcdic.h>
20#include <asm/ipl.h> 24#include <asm/ipl.h>
21#include <asm/lowcore.h> 25#include <asm/lowcore.h>
@@ -35,8 +39,6 @@
35 39
36char kernel_nss_name[NSS_NAME_SIZE + 1]; 40char kernel_nss_name[NSS_NAME_SIZE + 1];
37 41
38static unsigned long machine_flags;
39
40static void __init setup_boot_command_line(void); 42static void __init setup_boot_command_line(void);
41 43
42/* 44/*
@@ -81,6 +83,8 @@ asm(
81 " br 14\n" 83 " br 14\n"
82 " .size savesys_ipl_nss, .-savesys_ipl_nss\n"); 84 " .size savesys_ipl_nss, .-savesys_ipl_nss\n");
83 85
86static __initdata char upper_command_line[COMMAND_LINE_SIZE];
87
84static noinline __init void create_kernel_nss(void) 88static noinline __init void create_kernel_nss(void)
85{ 89{
86 unsigned int i, stext_pfn, eshared_pfn, end_pfn, min_size; 90 unsigned int i, stext_pfn, eshared_pfn, end_pfn, min_size;
@@ -90,7 +94,6 @@ static noinline __init void create_kernel_nss(void)
90 int response; 94 int response;
91 size_t len; 95 size_t len;
92 char *savesys_ptr; 96 char *savesys_ptr;
93 char upper_command_line[COMMAND_LINE_SIZE];
94 char defsys_cmd[DEFSYS_CMD_SIZE]; 97 char defsys_cmd[DEFSYS_CMD_SIZE];
95 char savesys_cmd[SAVESYS_CMD_SIZE]; 98 char savesys_cmd[SAVESYS_CMD_SIZE];
96 99
@@ -141,6 +144,8 @@ static noinline __init void create_kernel_nss(void)
141 __cpcmd(defsys_cmd, NULL, 0, &response); 144 __cpcmd(defsys_cmd, NULL, 0, &response);
142 145
143 if (response != 0) { 146 if (response != 0) {
147 pr_err("Defining the Linux kernel NSS failed with rc=%d\n",
148 response);
144 kernel_nss_name[0] = '\0'; 149 kernel_nss_name[0] = '\0';
145 return; 150 return;
146 } 151 }
@@ -153,8 +158,11 @@ static noinline __init void create_kernel_nss(void)
153 * max SAVESYS_CMD_SIZE 158 * max SAVESYS_CMD_SIZE
154 * On error: response contains the numeric portion of cp error message. 159 * On error: response contains the numeric portion of cp error message.
155 * for SAVESYS it will be >= 263 160 * for SAVESYS it will be >= 263
161 * for missing privilege class, it will be 1
156 */ 162 */
157 if (response > SAVESYS_CMD_SIZE) { 163 if (response > SAVESYS_CMD_SIZE || response == 1) {
164 pr_err("Saving the Linux kernel NSS failed with rc=%d\n",
165 response);
158 kernel_nss_name[0] = '\0'; 166 kernel_nss_name[0] = '\0';
159 return; 167 return;
160 } 168 }
@@ -205,12 +213,9 @@ static noinline __init void detect_machine_type(void)
205 213
206 /* Running under KVM? If not we assume z/VM */ 214 /* Running under KVM? If not we assume z/VM */
207 if (!memcmp(vmms.vm[0].cpi, "\xd2\xe5\xd4", 3)) 215 if (!memcmp(vmms.vm[0].cpi, "\xd2\xe5\xd4", 3))
208 machine_flags |= MACHINE_FLAG_KVM; 216 S390_lowcore.machine_flags |= MACHINE_FLAG_KVM;
209 else 217 else
210 machine_flags |= MACHINE_FLAG_VM; 218 S390_lowcore.machine_flags |= MACHINE_FLAG_VM;
211
212 /* Store machine flags for setting up lowcore early */
213 S390_lowcore.machine_flags = machine_flags;
214} 219}
215 220
216static __init void early_pgm_check_handler(void) 221static __init void early_pgm_check_handler(void)
@@ -245,7 +250,7 @@ static noinline __init void setup_hpage(void)
245 facilities = stfl(); 250 facilities = stfl();
246 if (!(facilities & (1UL << 23)) || !(facilities & (1UL << 29))) 251 if (!(facilities & (1UL << 23)) || !(facilities & (1UL << 29)))
247 return; 252 return;
248 machine_flags |= MACHINE_FLAG_HPAGE; 253 S390_lowcore.machine_flags |= MACHINE_FLAG_HPAGE;
249 __ctl_set_bit(0, 23); 254 __ctl_set_bit(0, 23);
250#endif 255#endif
251} 256}
@@ -263,7 +268,7 @@ static __init void detect_mvpg(void)
263 EX_TABLE(0b,1b) 268 EX_TABLE(0b,1b)
264 : "=d" (rc) : "0" (-EOPNOTSUPP), "a" (0) : "memory", "cc", "0"); 269 : "=d" (rc) : "0" (-EOPNOTSUPP), "a" (0) : "memory", "cc", "0");
265 if (!rc) 270 if (!rc)
266 machine_flags |= MACHINE_FLAG_MVPG; 271 S390_lowcore.machine_flags |= MACHINE_FLAG_MVPG;
267#endif 272#endif
268} 273}
269 274
@@ -279,7 +284,7 @@ static __init void detect_ieee(void)
279 EX_TABLE(0b,1b) 284 EX_TABLE(0b,1b)
280 : "=d" (rc), "=d" (tmp): "0" (-EOPNOTSUPP) : "cc"); 285 : "=d" (rc), "=d" (tmp): "0" (-EOPNOTSUPP) : "cc");
281 if (!rc) 286 if (!rc)
282 machine_flags |= MACHINE_FLAG_IEEE; 287 S390_lowcore.machine_flags |= MACHINE_FLAG_IEEE;
283#endif 288#endif
284} 289}
285 290
@@ -298,7 +303,7 @@ static __init void detect_csp(void)
298 EX_TABLE(0b,1b) 303 EX_TABLE(0b,1b)
299 : "=d" (rc) : "0" (-EOPNOTSUPP) : "cc", "0", "1", "2"); 304 : "=d" (rc) : "0" (-EOPNOTSUPP) : "cc", "0", "1", "2");
300 if (!rc) 305 if (!rc)
301 machine_flags |= MACHINE_FLAG_CSP; 306 S390_lowcore.machine_flags |= MACHINE_FLAG_CSP;
302#endif 307#endif
303} 308}
304 309
@@ -315,7 +320,7 @@ static __init void detect_diag9c(void)
315 EX_TABLE(0b,1b) 320 EX_TABLE(0b,1b)
316 : "=d" (rc) : "0" (-EOPNOTSUPP), "d" (cpu_address) : "cc"); 321 : "=d" (rc) : "0" (-EOPNOTSUPP), "d" (cpu_address) : "cc");
317 if (!rc) 322 if (!rc)
318 machine_flags |= MACHINE_FLAG_DIAG9C; 323 S390_lowcore.machine_flags |= MACHINE_FLAG_DIAG9C;
319} 324}
320 325
321static __init void detect_diag44(void) 326static __init void detect_diag44(void)
@@ -330,7 +335,7 @@ static __init void detect_diag44(void)
330 EX_TABLE(0b,1b) 335 EX_TABLE(0b,1b)
331 : "=d" (rc) : "0" (-EOPNOTSUPP) : "cc"); 336 : "=d" (rc) : "0" (-EOPNOTSUPP) : "cc");
332 if (!rc) 337 if (!rc)
333 machine_flags |= MACHINE_FLAG_DIAG44; 338 S390_lowcore.machine_flags |= MACHINE_FLAG_DIAG44;
334#endif 339#endif
335} 340}
336 341
@@ -341,11 +346,11 @@ static __init void detect_machine_facilities(void)
341 346
342 facilities = stfl(); 347 facilities = stfl();
343 if (facilities & (1 << 28)) 348 if (facilities & (1 << 28))
344 machine_flags |= MACHINE_FLAG_IDTE; 349 S390_lowcore.machine_flags |= MACHINE_FLAG_IDTE;
345 if (facilities & (1 << 23)) 350 if (facilities & (1 << 23))
346 machine_flags |= MACHINE_FLAG_PFMF; 351 S390_lowcore.machine_flags |= MACHINE_FLAG_PFMF;
347 if (facilities & (1 << 4)) 352 if (facilities & (1 << 4))
348 machine_flags |= MACHINE_FLAG_MVCOS; 353 S390_lowcore.machine_flags |= MACHINE_FLAG_MVCOS;
349#endif 354#endif
350} 355}
351 356
@@ -367,21 +372,35 @@ static __init void rescue_initrd(void)
367} 372}
368 373
369/* Set up boot command line */ 374/* Set up boot command line */
370static void __init setup_boot_command_line(void) 375static void __init append_to_cmdline(size_t (*ipl_data)(char *, size_t))
371{ 376{
372 char *parm = NULL; 377 char *parm, *delim;
378 size_t rc, len;
379
380 len = strlen(boot_command_line);
381
382 delim = boot_command_line + len; /* '\0' character position */
383 parm = boot_command_line + len + 1; /* append right after '\0' */
373 384
385 rc = ipl_data(parm, COMMAND_LINE_SIZE - len - 1);
386 if (rc) {
387 if (*parm == '=')
388 memmove(boot_command_line, parm + 1, rc);
389 else
390 *delim = ' '; /* replace '\0' with space */
391 }
392}
393
394static void __init setup_boot_command_line(void)
395{
374 /* copy arch command line */ 396 /* copy arch command line */
375 strlcpy(boot_command_line, COMMAND_LINE, ARCH_COMMAND_LINE_SIZE); 397 strlcpy(boot_command_line, COMMAND_LINE, ARCH_COMMAND_LINE_SIZE);
376 398
377 /* append IPL PARM data to the boot command line */ 399 /* append IPL PARM data to the boot command line */
378 if (MACHINE_IS_VM) { 400 if (MACHINE_IS_VM)
379 parm = boot_command_line + strlen(boot_command_line); 401 append_to_cmdline(append_ipl_vmparm);
380 *parm++ = ' '; 402
381 get_ipl_vmparm(parm); 403 append_to_cmdline(append_ipl_scpdata);
382 if (parm[0] == '=')
383 memmove(boot_command_line, parm + 1, strlen(parm));
384 }
385} 404}
386 405
387 406
@@ -413,7 +432,6 @@ void __init startup_init(void)
413 setup_hpage(); 432 setup_hpage();
414 sclp_facilities_detect(); 433 sclp_facilities_detect();
415 detect_memory_layout(memory_chunk); 434 detect_memory_layout(memory_chunk);
416 S390_lowcore.machine_flags = machine_flags;
417#ifdef CONFIG_DYNAMIC_FTRACE 435#ifdef CONFIG_DYNAMIC_FTRACE
418 S390_lowcore.ftrace_func = (unsigned long)ftrace_caller; 436 S390_lowcore.ftrace_func = (unsigned long)ftrace_caller;
419#endif 437#endif
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index c4c80a22bc1f..f78580a74039 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -278,7 +278,8 @@ sysc_return:
278 bnz BASED(sysc_work) # there is work to do (signals etc.) 278 bnz BASED(sysc_work) # there is work to do (signals etc.)
279sysc_restore: 279sysc_restore:
280#ifdef CONFIG_TRACE_IRQFLAGS 280#ifdef CONFIG_TRACE_IRQFLAGS
281 la %r1,BASED(sysc_restore_trace_psw) 281 la %r1,BASED(sysc_restore_trace_psw_addr)
282 l %r1,0(%r1)
282 lpsw 0(%r1) 283 lpsw 0(%r1)
283sysc_restore_trace: 284sysc_restore_trace:
284 TRACE_IRQS_CHECK 285 TRACE_IRQS_CHECK
@@ -289,10 +290,15 @@ sysc_leave:
289sysc_done: 290sysc_done:
290 291
291#ifdef CONFIG_TRACE_IRQFLAGS 292#ifdef CONFIG_TRACE_IRQFLAGS
293sysc_restore_trace_psw_addr:
294 .long sysc_restore_trace_psw
295
296 .section .data,"aw",@progbits
292 .align 8 297 .align 8
293 .globl sysc_restore_trace_psw 298 .globl sysc_restore_trace_psw
294sysc_restore_trace_psw: 299sysc_restore_trace_psw:
295 .long 0, sysc_restore_trace + 0x80000000 300 .long 0, sysc_restore_trace + 0x80000000
301 .previous
296#endif 302#endif
297 303
298# 304#
@@ -606,7 +612,8 @@ io_return:
606 bnz BASED(io_work) # there is work to do (signals etc.) 612 bnz BASED(io_work) # there is work to do (signals etc.)
607io_restore: 613io_restore:
608#ifdef CONFIG_TRACE_IRQFLAGS 614#ifdef CONFIG_TRACE_IRQFLAGS
609 la %r1,BASED(io_restore_trace_psw) 615 la %r1,BASED(io_restore_trace_psw_addr)
616 l %r1,0(%r1)
610 lpsw 0(%r1) 617 lpsw 0(%r1)
611io_restore_trace: 618io_restore_trace:
612 TRACE_IRQS_CHECK 619 TRACE_IRQS_CHECK
@@ -617,10 +624,15 @@ io_leave:
617io_done: 624io_done:
618 625
619#ifdef CONFIG_TRACE_IRQFLAGS 626#ifdef CONFIG_TRACE_IRQFLAGS
627io_restore_trace_psw_addr:
628 .long io_restore_trace_psw
629
630 .section .data,"aw",@progbits
620 .align 8 631 .align 8
621 .globl io_restore_trace_psw 632 .globl io_restore_trace_psw
622io_restore_trace_psw: 633io_restore_trace_psw:
623 .long 0, io_restore_trace + 0x80000000 634 .long 0, io_restore_trace + 0x80000000
635 .previous
624#endif 636#endif
625 637
626# 638#
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index f6618e9e15ef..009ca6175db9 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -284,10 +284,12 @@ sysc_leave:
284sysc_done: 284sysc_done:
285 285
286#ifdef CONFIG_TRACE_IRQFLAGS 286#ifdef CONFIG_TRACE_IRQFLAGS
287 .section .data,"aw",@progbits
287 .align 8 288 .align 8
288 .globl sysc_restore_trace_psw 289 .globl sysc_restore_trace_psw
289sysc_restore_trace_psw: 290sysc_restore_trace_psw:
290 .quad 0, sysc_restore_trace 291 .quad 0, sysc_restore_trace
292 .previous
291#endif 293#endif
292 294
293# 295#
@@ -595,10 +597,12 @@ io_leave:
595io_done: 597io_done:
596 598
597#ifdef CONFIG_TRACE_IRQFLAGS 599#ifdef CONFIG_TRACE_IRQFLAGS
600 .section .data,"aw",@progbits
598 .align 8 601 .align 8
599 .globl io_restore_trace_psw 602 .globl io_restore_trace_psw
600io_restore_trace_psw: 603io_restore_trace_psw:
601 .quad 0, io_restore_trace 604 .quad 0, io_restore_trace
605 .previous
602#endif 606#endif
603 607
604# 608#
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index ec6882348520..c52b4f7742fa 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -27,6 +27,7 @@
27#include <asm/asm-offsets.h> 27#include <asm/asm-offsets.h>
28#include <asm/thread_info.h> 28#include <asm/thread_info.h>
29#include <asm/page.h> 29#include <asm/page.h>
30#include <asm/cpu.h>
30 31
31#ifdef CONFIG_64BIT 32#ifdef CONFIG_64BIT
32#define ARCH_OFFSET 4 33#define ARCH_OFFSET 4
diff --git a/arch/s390/kernel/head31.S b/arch/s390/kernel/head31.S
index 2ced846065b7..602b508cd4c4 100644
--- a/arch/s390/kernel/head31.S
+++ b/arch/s390/kernel/head31.S
@@ -24,6 +24,7 @@ startup_continue:
24# Setup stack 24# Setup stack
25# 25#
26 l %r15,.Linittu-.LPG1(%r13) 26 l %r15,.Linittu-.LPG1(%r13)
27 st %r15,__LC_THREAD_INFO # cache thread info in lowcore
27 mvc __LC_CURRENT(4),__TI_task(%r15) 28 mvc __LC_CURRENT(4),__TI_task(%r15)
28 ahi %r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union+THREAD_SIZE 29 ahi %r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union+THREAD_SIZE
29 st %r15,__LC_KERNEL_STACK # set end of kernel stack 30 st %r15,__LC_KERNEL_STACK # set end of kernel stack
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index 65667b2e65ce..6a250808092b 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -62,9 +62,9 @@ startup_continue:
62 clr %r11,%r12 62 clr %r11,%r12
63 je 5f # no more space in prefix array 63 je 5f # no more space in prefix array
644: 644:
65 ahi %r8,1 # next cpu (r8 += 1) 65 ahi %r8,1 # next cpu (r8 += 1)
66 cl %r8,.Llast_cpu-.LPG1(%r13) # is last possible cpu ? 66 chi %r8,MAX_CPU_ADDRESS # is last possible cpu ?
67 jl 1b # jump if not last cpu 67 jle 1b # jump if not last cpu
685: 685:
69 lhi %r1,2 # mode 2 = esame (dump) 69 lhi %r1,2 # mode 2 = esame (dump)
70 j 6f 70 j 6f
@@ -92,6 +92,7 @@ startup_continue:
92# Setup stack 92# Setup stack
93# 93#
94 larl %r15,init_thread_union 94 larl %r15,init_thread_union
95 stg %r15,__LC_THREAD_INFO # cache thread info in lowcore
95 lg %r14,__TI_task(%r15) # cache current in lowcore 96 lg %r14,__TI_task(%r15) # cache current in lowcore
96 stg %r14,__LC_CURRENT 97 stg %r14,__LC_CURRENT
97 aghi %r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union + THREAD_SIZE 98 aghi %r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union + THREAD_SIZE
@@ -129,8 +130,6 @@ startup_continue:
129#ifdef CONFIG_ZFCPDUMP 130#ifdef CONFIG_ZFCPDUMP
130.Lcurrent_cpu: 131.Lcurrent_cpu:
131 .long 0x0 132 .long 0x0
132.Llast_cpu:
133 .long 0x0000ffff
134.Lpref_arr_ptr: 133.Lpref_arr_ptr:
135 .long zfcpdump_prefix_array 134 .long zfcpdump_prefix_array
136#endif /* CONFIG_ZFCPDUMP */ 135#endif /* CONFIG_ZFCPDUMP */
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 371a2d88f4ac..ee57a42e6e93 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -272,17 +272,18 @@ static ssize_t ipl_type_show(struct kobject *kobj, struct kobj_attribute *attr,
272static struct kobj_attribute sys_ipl_type_attr = __ATTR_RO(ipl_type); 272static struct kobj_attribute sys_ipl_type_attr = __ATTR_RO(ipl_type);
273 273
274/* VM IPL PARM routines */ 274/* VM IPL PARM routines */
275static void reipl_get_ascii_vmparm(char *dest, 275size_t reipl_get_ascii_vmparm(char *dest, size_t size,
276 const struct ipl_parameter_block *ipb) 276 const struct ipl_parameter_block *ipb)
277{ 277{
278 int i; 278 int i;
279 int len = 0; 279 size_t len;
280 char has_lowercase = 0; 280 char has_lowercase = 0;
281 281
282 len = 0;
282 if ((ipb->ipl_info.ccw.vm_flags & DIAG308_VM_FLAGS_VP_VALID) && 283 if ((ipb->ipl_info.ccw.vm_flags & DIAG308_VM_FLAGS_VP_VALID) &&
283 (ipb->ipl_info.ccw.vm_parm_len > 0)) { 284 (ipb->ipl_info.ccw.vm_parm_len > 0)) {
284 285
285 len = ipb->ipl_info.ccw.vm_parm_len; 286 len = min_t(size_t, size - 1, ipb->ipl_info.ccw.vm_parm_len);
286 memcpy(dest, ipb->ipl_info.ccw.vm_parm, len); 287 memcpy(dest, ipb->ipl_info.ccw.vm_parm, len);
287 /* If at least one character is lowercase, we assume mixed 288 /* If at least one character is lowercase, we assume mixed
288 * case; otherwise we convert everything to lowercase. 289 * case; otherwise we convert everything to lowercase.
@@ -299,14 +300,20 @@ static void reipl_get_ascii_vmparm(char *dest,
299 EBCASC(dest, len); 300 EBCASC(dest, len);
300 } 301 }
301 dest[len] = 0; 302 dest[len] = 0;
303
304 return len;
302} 305}
303 306
304void get_ipl_vmparm(char *dest) 307size_t append_ipl_vmparm(char *dest, size_t size)
305{ 308{
309 size_t rc;
310
311 rc = 0;
306 if (diag308_set_works && (ipl_block.hdr.pbt == DIAG308_IPL_TYPE_CCW)) 312 if (diag308_set_works && (ipl_block.hdr.pbt == DIAG308_IPL_TYPE_CCW))
307 reipl_get_ascii_vmparm(dest, &ipl_block); 313 rc = reipl_get_ascii_vmparm(dest, size, &ipl_block);
308 else 314 else
309 dest[0] = 0; 315 dest[0] = 0;
316 return rc;
310} 317}
311 318
312static ssize_t ipl_vm_parm_show(struct kobject *kobj, 319static ssize_t ipl_vm_parm_show(struct kobject *kobj,
@@ -314,10 +321,65 @@ static ssize_t ipl_vm_parm_show(struct kobject *kobj,
314{ 321{
315 char parm[DIAG308_VMPARM_SIZE + 1] = {}; 322 char parm[DIAG308_VMPARM_SIZE + 1] = {};
316 323
317 get_ipl_vmparm(parm); 324 append_ipl_vmparm(parm, sizeof(parm));
318 return sprintf(page, "%s\n", parm); 325 return sprintf(page, "%s\n", parm);
319} 326}
320 327
328static size_t scpdata_length(const char* buf, size_t count)
329{
330 while (count) {
331 if (buf[count - 1] != '\0' && buf[count - 1] != ' ')
332 break;
333 count--;
334 }
335 return count;
336}
337
338size_t reipl_append_ascii_scpdata(char *dest, size_t size,
339 const struct ipl_parameter_block *ipb)
340{
341 size_t count;
342 size_t i;
343 int has_lowercase;
344
345 count = min(size - 1, scpdata_length(ipb->ipl_info.fcp.scp_data,
346 ipb->ipl_info.fcp.scp_data_len));
347 if (!count)
348 goto out;
349
350 has_lowercase = 0;
351 for (i = 0; i < count; i++) {
352 if (!isascii(ipb->ipl_info.fcp.scp_data[i])) {
353 count = 0;
354 goto out;
355 }
356 if (!has_lowercase && islower(ipb->ipl_info.fcp.scp_data[i]))
357 has_lowercase = 1;
358 }
359
360 if (has_lowercase)
361 memcpy(dest, ipb->ipl_info.fcp.scp_data, count);
362 else
363 for (i = 0; i < count; i++)
364 dest[i] = tolower(ipb->ipl_info.fcp.scp_data[i]);
365out:
366 dest[count] = '\0';
367 return count;
368}
369
370size_t append_ipl_scpdata(char *dest, size_t len)
371{
372 size_t rc;
373
374 rc = 0;
375 if (ipl_block.hdr.pbt == DIAG308_IPL_TYPE_FCP)
376 rc = reipl_append_ascii_scpdata(dest, len, &ipl_block);
377 else
378 dest[0] = 0;
379 return rc;
380}
381
382
321static struct kobj_attribute sys_ipl_vm_parm_attr = 383static struct kobj_attribute sys_ipl_vm_parm_attr =
322 __ATTR(parm, S_IRUGO, ipl_vm_parm_show, NULL); 384 __ATTR(parm, S_IRUGO, ipl_vm_parm_show, NULL);
323 385
@@ -553,7 +615,7 @@ static ssize_t reipl_generic_vmparm_show(struct ipl_parameter_block *ipb,
553{ 615{
554 char vmparm[DIAG308_VMPARM_SIZE + 1] = {}; 616 char vmparm[DIAG308_VMPARM_SIZE + 1] = {};
555 617
556 reipl_get_ascii_vmparm(vmparm, ipb); 618 reipl_get_ascii_vmparm(vmparm, sizeof(vmparm), ipb);
557 return sprintf(page, "%s\n", vmparm); 619 return sprintf(page, "%s\n", vmparm);
558} 620}
559 621
@@ -626,6 +688,59 @@ static struct kobj_attribute sys_reipl_ccw_vmparm_attr =
626 688
627/* FCP reipl device attributes */ 689/* FCP reipl device attributes */
628 690
691static ssize_t reipl_fcp_scpdata_read(struct kobject *kobj,
692 struct bin_attribute *attr,
693 char *buf, loff_t off, size_t count)
694{
695 size_t size = reipl_block_fcp->ipl_info.fcp.scp_data_len;
696 void *scp_data = reipl_block_fcp->ipl_info.fcp.scp_data;
697
698 return memory_read_from_buffer(buf, count, &off, scp_data, size);
699}
700
701static ssize_t reipl_fcp_scpdata_write(struct kobject *kobj,
702 struct bin_attribute *attr,
703 char *buf, loff_t off, size_t count)
704{
705 size_t padding;
706 size_t scpdata_len;
707
708 if (off < 0)
709 return -EINVAL;
710
711 if (off >= DIAG308_SCPDATA_SIZE)
712 return -ENOSPC;
713
714 if (count > DIAG308_SCPDATA_SIZE - off)
715 count = DIAG308_SCPDATA_SIZE - off;
716
717 memcpy(reipl_block_fcp->ipl_info.fcp.scp_data, buf + off, count);
718 scpdata_len = off + count;
719
720 if (scpdata_len % 8) {
721 padding = 8 - (scpdata_len % 8);
722 memset(reipl_block_fcp->ipl_info.fcp.scp_data + scpdata_len,
723 0, padding);
724 scpdata_len += padding;
725 }
726
727 reipl_block_fcp->ipl_info.fcp.scp_data_len = scpdata_len;
728 reipl_block_fcp->hdr.len = IPL_PARM_BLK_FCP_LEN + scpdata_len;
729 reipl_block_fcp->hdr.blk0_len = IPL_PARM_BLK0_FCP_LEN + scpdata_len;
730
731 return count;
732}
733
734static struct bin_attribute sys_reipl_fcp_scp_data_attr = {
735 .attr = {
736 .name = "scp_data",
737 .mode = S_IRUGO | S_IWUSR,
738 },
739 .size = PAGE_SIZE,
740 .read = reipl_fcp_scpdata_read,
741 .write = reipl_fcp_scpdata_write,
742};
743
629DEFINE_IPL_ATTR_RW(reipl_fcp, wwpn, "0x%016llx\n", "%016llx\n", 744DEFINE_IPL_ATTR_RW(reipl_fcp, wwpn, "0x%016llx\n", "%016llx\n",
630 reipl_block_fcp->ipl_info.fcp.wwpn); 745 reipl_block_fcp->ipl_info.fcp.wwpn);
631DEFINE_IPL_ATTR_RW(reipl_fcp, lun, "0x%016llx\n", "%016llx\n", 746DEFINE_IPL_ATTR_RW(reipl_fcp, lun, "0x%016llx\n", "%016llx\n",
@@ -647,7 +762,6 @@ static struct attribute *reipl_fcp_attrs[] = {
647}; 762};
648 763
649static struct attribute_group reipl_fcp_attr_group = { 764static struct attribute_group reipl_fcp_attr_group = {
650 .name = IPL_FCP_STR,
651 .attrs = reipl_fcp_attrs, 765 .attrs = reipl_fcp_attrs,
652}; 766};
653 767
@@ -895,6 +1009,7 @@ static struct kobj_attribute reipl_type_attr =
895 __ATTR(reipl_type, 0644, reipl_type_show, reipl_type_store); 1009 __ATTR(reipl_type, 0644, reipl_type_show, reipl_type_store);
896 1010
897static struct kset *reipl_kset; 1011static struct kset *reipl_kset;
1012static struct kset *reipl_fcp_kset;
898 1013
899static void get_ipl_string(char *dst, struct ipl_parameter_block *ipb, 1014static void get_ipl_string(char *dst, struct ipl_parameter_block *ipb,
900 const enum ipl_method m) 1015 const enum ipl_method m)
@@ -906,7 +1021,7 @@ static void get_ipl_string(char *dst, struct ipl_parameter_block *ipb,
906 1021
907 reipl_get_ascii_loadparm(loadparm, ipb); 1022 reipl_get_ascii_loadparm(loadparm, ipb);
908 reipl_get_ascii_nss_name(nss_name, ipb); 1023 reipl_get_ascii_nss_name(nss_name, ipb);
909 reipl_get_ascii_vmparm(vmparm, ipb); 1024 reipl_get_ascii_vmparm(vmparm, sizeof(vmparm), ipb);
910 1025
911 switch (m) { 1026 switch (m) {
912 case REIPL_METHOD_CCW_VM: 1027 case REIPL_METHOD_CCW_VM:
@@ -1076,23 +1191,44 @@ static int __init reipl_fcp_init(void)
1076 int rc; 1191 int rc;
1077 1192
1078 if (!diag308_set_works) { 1193 if (!diag308_set_works) {
1079 if (ipl_info.type == IPL_TYPE_FCP) 1194 if (ipl_info.type == IPL_TYPE_FCP) {
1080 make_attrs_ro(reipl_fcp_attrs); 1195 make_attrs_ro(reipl_fcp_attrs);
1081 else 1196 sys_reipl_fcp_scp_data_attr.attr.mode = S_IRUGO;
1197 } else
1082 return 0; 1198 return 0;
1083 } 1199 }
1084 1200
1085 reipl_block_fcp = (void *) get_zeroed_page(GFP_KERNEL); 1201 reipl_block_fcp = (void *) get_zeroed_page(GFP_KERNEL);
1086 if (!reipl_block_fcp) 1202 if (!reipl_block_fcp)
1087 return -ENOMEM; 1203 return -ENOMEM;
1088 rc = sysfs_create_group(&reipl_kset->kobj, &reipl_fcp_attr_group); 1204
1205 /* sysfs: create fcp kset for mixing attr group and bin attrs */
1206 reipl_fcp_kset = kset_create_and_add(IPL_FCP_STR, NULL,
1207 &reipl_kset->kobj);
1208 if (!reipl_kset) {
1209 free_page((unsigned long) reipl_block_fcp);
1210 return -ENOMEM;
1211 }
1212
1213 rc = sysfs_create_group(&reipl_fcp_kset->kobj, &reipl_fcp_attr_group);
1214 if (rc) {
1215 kset_unregister(reipl_fcp_kset);
1216 free_page((unsigned long) reipl_block_fcp);
1217 return rc;
1218 }
1219
1220 rc = sysfs_create_bin_file(&reipl_fcp_kset->kobj,
1221 &sys_reipl_fcp_scp_data_attr);
1089 if (rc) { 1222 if (rc) {
1090 free_page((unsigned long)reipl_block_fcp); 1223 sysfs_remove_group(&reipl_fcp_kset->kobj, &reipl_fcp_attr_group);
1224 kset_unregister(reipl_fcp_kset);
1225 free_page((unsigned long) reipl_block_fcp);
1091 return rc; 1226 return rc;
1092 } 1227 }
1093 if (ipl_info.type == IPL_TYPE_FCP) { 1228
1229 if (ipl_info.type == IPL_TYPE_FCP)
1094 memcpy(reipl_block_fcp, IPL_PARMBLOCK_START, PAGE_SIZE); 1230 memcpy(reipl_block_fcp, IPL_PARMBLOCK_START, PAGE_SIZE);
1095 } else { 1231 else {
1096 reipl_block_fcp->hdr.len = IPL_PARM_BLK_FCP_LEN; 1232 reipl_block_fcp->hdr.len = IPL_PARM_BLK_FCP_LEN;
1097 reipl_block_fcp->hdr.version = IPL_PARM_BLOCK_VERSION; 1233 reipl_block_fcp->hdr.version = IPL_PARM_BLOCK_VERSION;
1098 reipl_block_fcp->hdr.blk0_len = IPL_PARM_BLK0_FCP_LEN; 1234 reipl_block_fcp->hdr.blk0_len = IPL_PARM_BLK0_FCP_LEN;
diff --git a/arch/s390/kernel/mcount.S b/arch/s390/kernel/mcount.S
index 2a0a5e97ba8c..dfe015d7398c 100644
--- a/arch/s390/kernel/mcount.S
+++ b/arch/s390/kernel/mcount.S
@@ -11,111 +11,27 @@
11ftrace_stub: 11ftrace_stub:
12 br %r14 12 br %r14
13 13
14#ifdef CONFIG_64BIT
15
16#ifdef CONFIG_DYNAMIC_FTRACE
17
18 .globl _mcount 14 .globl _mcount
19_mcount: 15_mcount:
20 br %r14 16#ifdef CONFIG_DYNAMIC_FTRACE
21
22 .globl ftrace_caller
23ftrace_caller:
24 larl %r1,function_trace_stop
25 icm %r1,0xf,0(%r1)
26 bnzr %r14
27 stmg %r2,%r5,32(%r15)
28 stg %r14,112(%r15)
29 lgr %r1,%r15
30 aghi %r15,-160
31 stg %r1,__SF_BACKCHAIN(%r15)
32 lgr %r2,%r14
33 lg %r3,168(%r15)
34 larl %r14,ftrace_dyn_func
35 lg %r14,0(%r14)
36 basr %r14,%r14
37#ifdef CONFIG_FUNCTION_GRAPH_TRACER
38 .globl ftrace_graph_caller
39ftrace_graph_caller:
40 # This unconditional branch gets runtime patched. Change only if
41 # you know what you are doing. See ftrace_enable_graph_caller().
42 j 0f
43 lg %r2,272(%r15)
44 lg %r3,168(%r15)
45 brasl %r14,prepare_ftrace_return
46 stg %r2,168(%r15)
470:
48#endif
49 aghi %r15,160
50 lmg %r2,%r5,32(%r15)
51 lg %r14,112(%r15)
52 br %r14 17 br %r14
53 18
54 .data 19 .data
55 .globl ftrace_dyn_func 20 .globl ftrace_dyn_func
56ftrace_dyn_func: 21ftrace_dyn_func:
57 .quad ftrace_stub 22 .long ftrace_stub
58 .previous 23 .previous
59 24
60#else /* CONFIG_DYNAMIC_FTRACE */
61
62 .globl _mcount
63_mcount:
64 larl %r1,function_trace_stop
65 icm %r1,0xf,0(%r1)
66 bnzr %r14
67 stmg %r2,%r5,32(%r15)
68 stg %r14,112(%r15)
69 lgr %r1,%r15
70 aghi %r15,-160
71 stg %r1,__SF_BACKCHAIN(%r15)
72 lgr %r2,%r14
73 lg %r3,168(%r15)
74 larl %r14,ftrace_trace_function
75 lg %r14,0(%r14)
76 basr %r14,%r14
77#ifdef CONFIG_FUNCTION_GRAPH_TRACER
78 lg %r2,272(%r15)
79 lg %r3,168(%r15)
80 brasl %r14,prepare_ftrace_return
81 stg %r2,168(%r15)
82#endif
83 aghi %r15,160
84 lmg %r2,%r5,32(%r15)
85 lg %r14,112(%r15)
86 br %r14
87
88#endif /* CONFIG_DYNAMIC_FTRACE */
89
90#ifdef CONFIG_FUNCTION_GRAPH_TRACER
91
92 .globl return_to_handler
93return_to_handler:
94 stmg %r2,%r5,32(%r15)
95 lgr %r1,%r15
96 aghi %r15,-160
97 stg %r1,__SF_BACKCHAIN(%r15)
98 brasl %r14,ftrace_return_to_handler
99 aghi %r15,160
100 lgr %r14,%r2
101 lmg %r2,%r5,32(%r15)
102 br %r14
103
104#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
105
106#else /* CONFIG_64BIT */
107
108#ifdef CONFIG_DYNAMIC_FTRACE
109
110 .globl _mcount
111_mcount:
112 br %r14
113
114 .globl ftrace_caller 25 .globl ftrace_caller
115ftrace_caller: 26ftrace_caller:
27#endif
116 stm %r2,%r5,16(%r15) 28 stm %r2,%r5,16(%r15)
117 bras %r1,2f 29 bras %r1,2f
30#ifdef CONFIG_DYNAMIC_FTRACE
310: .long ftrace_dyn_func
32#else
1180: .long ftrace_trace_function 330: .long ftrace_trace_function
34#endif
1191: .long function_trace_stop 351: .long function_trace_stop
1202: l %r2,1b-0b(%r1) 362: l %r2,1b-0b(%r1)
121 icm %r2,0xf,0(%r2) 37 icm %r2,0xf,0(%r2)
@@ -131,53 +47,13 @@ ftrace_caller:
131 l %r14,0(%r14) 47 l %r14,0(%r14)
132 basr %r14,%r14 48 basr %r14,%r14
133#ifdef CONFIG_FUNCTION_GRAPH_TRACER 49#ifdef CONFIG_FUNCTION_GRAPH_TRACER
50#ifdef CONFIG_DYNAMIC_FTRACE
134 .globl ftrace_graph_caller 51 .globl ftrace_graph_caller
135ftrace_graph_caller: 52ftrace_graph_caller:
136 # This unconditional branch gets runtime patched. Change only if 53 # This unconditional branch gets runtime patched. Change only if
137 # you know what you are doing. See ftrace_enable_graph_caller(). 54 # you know what you are doing. See ftrace_enable_graph_caller().
138 j 1f 55 j 1f
139 bras %r1,0f
140 .long prepare_ftrace_return
1410: l %r2,152(%r15)
142 l %r4,0(%r1)
143 l %r3,100(%r15)
144 basr %r14,%r4
145 st %r2,100(%r15)
1461:
147#endif 56#endif
148 ahi %r15,96
149 l %r14,56(%r15)
1503: lm %r2,%r5,16(%r15)
151 br %r14
152
153 .data
154 .globl ftrace_dyn_func
155ftrace_dyn_func:
156 .long ftrace_stub
157 .previous
158
159#else /* CONFIG_DYNAMIC_FTRACE */
160
161 .globl _mcount
162_mcount:
163 stm %r2,%r5,16(%r15)
164 bras %r1,2f
1650: .long ftrace_trace_function
1661: .long function_trace_stop
1672: l %r2,1b-0b(%r1)
168 icm %r2,0xf,0(%r2)
169 jnz 3f
170 st %r14,56(%r15)
171 lr %r0,%r15
172 ahi %r15,-96
173 l %r3,100(%r15)
174 la %r2,0(%r14)
175 st %r0,__SF_BACKCHAIN(%r15)
176 la %r3,0(%r3)
177 l %r14,0b-0b(%r1)
178 l %r14,0(%r14)
179 basr %r14,%r14
180#ifdef CONFIG_FUNCTION_GRAPH_TRACER
181 bras %r1,0f 57 bras %r1,0f
182 .long prepare_ftrace_return 58 .long prepare_ftrace_return
1830: l %r2,152(%r15) 590: l %r2,152(%r15)
@@ -185,14 +61,13 @@ _mcount:
185 l %r3,100(%r15) 61 l %r3,100(%r15)
186 basr %r14,%r4 62 basr %r14,%r4
187 st %r2,100(%r15) 63 st %r2,100(%r15)
641:
188#endif 65#endif
189 ahi %r15,96 66 ahi %r15,96
190 l %r14,56(%r15) 67 l %r14,56(%r15)
1913: lm %r2,%r5,16(%r15) 683: lm %r2,%r5,16(%r15)
192 br %r14 69 br %r14
193 70
194#endif /* CONFIG_DYNAMIC_FTRACE */
195
196#ifdef CONFIG_FUNCTION_GRAPH_TRACER 71#ifdef CONFIG_FUNCTION_GRAPH_TRACER
197 72
198 .globl return_to_handler 73 .globl return_to_handler
@@ -211,6 +86,4 @@ return_to_handler:
211 lm %r2,%r5,16(%r15) 86 lm %r2,%r5,16(%r15)
212 br %r14 87 br %r14
213 88
214#endif /* CONFIG_FUNCTION_GRAPH_TRACER */ 89#endif
215
216#endif /* CONFIG_64BIT */
diff --git a/arch/s390/kernel/mcount64.S b/arch/s390/kernel/mcount64.S
new file mode 100644
index 000000000000..c37211c6092b
--- /dev/null
+++ b/arch/s390/kernel/mcount64.S
@@ -0,0 +1,78 @@
1/*
2 * Copyright IBM Corp. 2008,2009
3 *
4 * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>,
5 *
6 */
7
8#include <asm/asm-offsets.h>
9
10 .globl ftrace_stub
11ftrace_stub:
12 br %r14
13
14 .globl _mcount
15_mcount:
16#ifdef CONFIG_DYNAMIC_FTRACE
17 br %r14
18
19 .data
20 .globl ftrace_dyn_func
21ftrace_dyn_func:
22 .quad ftrace_stub
23 .previous
24
25 .globl ftrace_caller
26ftrace_caller:
27#endif
28 larl %r1,function_trace_stop
29 icm %r1,0xf,0(%r1)
30 bnzr %r14
31 stmg %r2,%r5,32(%r15)
32 stg %r14,112(%r15)
33 lgr %r1,%r15
34 aghi %r15,-160
35 stg %r1,__SF_BACKCHAIN(%r15)
36 lgr %r2,%r14
37 lg %r3,168(%r15)
38#ifdef CONFIG_DYNAMIC_FTRACE
39 larl %r14,ftrace_dyn_func
40#else
41 larl %r14,ftrace_trace_function
42#endif
43 lg %r14,0(%r14)
44 basr %r14,%r14
45#ifdef CONFIG_FUNCTION_GRAPH_TRACER
46#ifdef CONFIG_DYNAMIC_FTRACE
47 .globl ftrace_graph_caller
48ftrace_graph_caller:
49 # This unconditional branch gets runtime patched. Change only if
50 # you know what you are doing. See ftrace_enable_graph_caller().
51 j 0f
52#endif
53 lg %r2,272(%r15)
54 lg %r3,168(%r15)
55 brasl %r14,prepare_ftrace_return
56 stg %r2,168(%r15)
570:
58#endif
59 aghi %r15,160
60 lmg %r2,%r5,32(%r15)
61 lg %r14,112(%r15)
62 br %r14
63
64#ifdef CONFIG_FUNCTION_GRAPH_TRACER
65
66 .globl return_to_handler
67return_to_handler:
68 stmg %r2,%r5,32(%r15)
69 lgr %r1,%r15
70 aghi %r15,-160
71 stg %r1,__SF_BACKCHAIN(%r15)
72 brasl %r14,ftrace_return_to_handler
73 aghi %r15,160
74 lgr %r14,%r2
75 lmg %r2,%r5,32(%r15)
76 br %r14
77
78#endif
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index cbb897bc50bd..9ed13a1ed376 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -156,15 +156,11 @@ __setup("condev=", condev_setup);
156 156
157static void __init set_preferred_console(void) 157static void __init set_preferred_console(void)
158{ 158{
159 if (MACHINE_IS_KVM) { 159 if (MACHINE_IS_KVM)
160 add_preferred_console("hvc", 0, NULL); 160 add_preferred_console("hvc", 0, NULL);
161 s390_virtio_console_init(); 161 else if (CONSOLE_IS_3215 || CONSOLE_IS_SCLP)
162 return;
163 }
164
165 if (CONSOLE_IS_3215 || CONSOLE_IS_SCLP)
166 add_preferred_console("ttyS", 0, NULL); 162 add_preferred_console("ttyS", 0, NULL);
167 if (CONSOLE_IS_3270) 163 else if (CONSOLE_IS_3270)
168 add_preferred_console("tty3270", 0, NULL); 164 add_preferred_console("tty3270", 0, NULL);
169} 165}
170 166
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index be2cae083406..56c16876b919 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -49,6 +49,7 @@
49#include <asm/sclp.h> 49#include <asm/sclp.h>
50#include <asm/cputime.h> 50#include <asm/cputime.h>
51#include <asm/vdso.h> 51#include <asm/vdso.h>
52#include <asm/cpu.h>
52#include "entry.h" 53#include "entry.h"
53 54
54static struct task_struct *current_set[NR_CPUS]; 55static struct task_struct *current_set[NR_CPUS];
@@ -70,6 +71,23 @@ static DEFINE_PER_CPU(struct cpu, cpu_devices);
70 71
71static void smp_ext_bitcall(int, ec_bit_sig); 72static void smp_ext_bitcall(int, ec_bit_sig);
72 73
74static int cpu_stopped(int cpu)
75{
76 __u32 status;
77
78 switch (signal_processor_ps(&status, 0, cpu, sigp_sense)) {
79 case sigp_order_code_accepted:
80 case sigp_status_stored:
81 /* Check for stopped and check stop state */
82 if (status & 0x50)
83 return 1;
84 break;
85 default:
86 break;
87 }
88 return 0;
89}
90
73void smp_send_stop(void) 91void smp_send_stop(void)
74{ 92{
75 int cpu, rc; 93 int cpu, rc;
@@ -86,7 +104,7 @@ void smp_send_stop(void)
86 rc = signal_processor(cpu, sigp_stop); 104 rc = signal_processor(cpu, sigp_stop);
87 } while (rc == sigp_busy); 105 } while (rc == sigp_busy);
88 106
89 while (!smp_cpu_not_running(cpu)) 107 while (!cpu_stopped(cpu))
90 cpu_relax(); 108 cpu_relax();
91 } 109 }
92} 110}
@@ -269,19 +287,6 @@ static inline void smp_get_save_area(unsigned int cpu, unsigned int phy_cpu) { }
269 287
270#endif /* CONFIG_ZFCPDUMP */ 288#endif /* CONFIG_ZFCPDUMP */
271 289
272static int cpu_stopped(int cpu)
273{
274 __u32 status;
275
276 /* Check for stopped state */
277 if (signal_processor_ps(&status, 0, cpu, sigp_sense) ==
278 sigp_status_stored) {
279 if (status & 0x40)
280 return 1;
281 }
282 return 0;
283}
284
285static int cpu_known(int cpu_id) 290static int cpu_known(int cpu_id)
286{ 291{
287 int cpu; 292 int cpu;
@@ -300,7 +305,7 @@ static int smp_rescan_cpus_sigp(cpumask_t avail)
300 logical_cpu = cpumask_first(&avail); 305 logical_cpu = cpumask_first(&avail);
301 if (logical_cpu >= nr_cpu_ids) 306 if (logical_cpu >= nr_cpu_ids)
302 return 0; 307 return 0;
303 for (cpu_id = 0; cpu_id <= 65535; cpu_id++) { 308 for (cpu_id = 0; cpu_id <= MAX_CPU_ADDRESS; cpu_id++) {
304 if (cpu_known(cpu_id)) 309 if (cpu_known(cpu_id))
305 continue; 310 continue;
306 __cpu_logical_map[logical_cpu] = cpu_id; 311 __cpu_logical_map[logical_cpu] = cpu_id;
@@ -379,7 +384,7 @@ static void __init smp_detect_cpus(void)
379 /* Use sigp detection algorithm if sclp doesn't work. */ 384 /* Use sigp detection algorithm if sclp doesn't work. */
380 if (sclp_get_cpu_info(info)) { 385 if (sclp_get_cpu_info(info)) {
381 smp_use_sigp_detection = 1; 386 smp_use_sigp_detection = 1;
382 for (cpu = 0; cpu <= 65535; cpu++) { 387 for (cpu = 0; cpu <= MAX_CPU_ADDRESS; cpu++) {
383 if (cpu == boot_cpu_addr) 388 if (cpu == boot_cpu_addr)
384 continue; 389 continue;
385 __cpu_logical_map[CPU_INIT_NO] = cpu; 390 __cpu_logical_map[CPU_INIT_NO] = cpu;
@@ -635,7 +640,7 @@ int __cpu_disable(void)
635void __cpu_die(unsigned int cpu) 640void __cpu_die(unsigned int cpu)
636{ 641{
637 /* Wait until target cpu is down */ 642 /* Wait until target cpu is down */
638 while (!smp_cpu_not_running(cpu)) 643 while (!cpu_stopped(cpu))
639 cpu_relax(); 644 cpu_relax();
640 smp_free_lowcore(cpu); 645 smp_free_lowcore(cpu);
641 pr_info("Processor %d stopped\n", cpu); 646 pr_info("Processor %d stopped\n", cpu);
diff --git a/arch/s390/power/swsusp.c b/arch/s390/kernel/suspend.c
index bd1f5c6b0b8c..086bee970cae 100644
--- a/arch/s390/power/swsusp.c
+++ b/arch/s390/kernel/suspend.c
@@ -1,13 +1,44 @@
1/* 1/*
2 * Support for suspend and resume on s390 2 * Suspend support specific for s390.
3 * 3 *
4 * Copyright IBM Corp. 2009 4 * Copyright IBM Corp. 2009
5 * 5 *
6 * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com> 6 * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com>
7 *
8 */ 7 */
9 8
9#include <linux/suspend.h>
10#include <linux/reboot.h>
11#include <linux/pfn.h>
12#include <linux/mm.h>
13#include <asm/sections.h>
10#include <asm/system.h> 14#include <asm/system.h>
15#include <asm/ipl.h>
16
17/*
18 * References to section boundaries
19 */
20extern const void __nosave_begin, __nosave_end;
21
22/*
23 * check if given pfn is in the 'nosave' or in the read only NSS section
24 */
25int pfn_is_nosave(unsigned long pfn)
26{
27 unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
28 unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end))
29 >> PAGE_SHIFT;
30 unsigned long eshared_pfn = PFN_DOWN(__pa(&_eshared)) - 1;
31 unsigned long stext_pfn = PFN_DOWN(__pa(&_stext));
32
33 if (pfn >= nosave_begin_pfn && pfn < nosave_end_pfn)
34 return 1;
35 if (pfn >= stext_pfn && pfn <= eshared_pfn) {
36 if (ipl_info.type == IPL_TYPE_NSS)
37 return 1;
38 } else if ((tprot(pfn * PAGE_SIZE) && pfn > 0))
39 return 1;
40 return 0;
41}
11 42
12void save_processor_state(void) 43void save_processor_state(void)
13{ 44{
diff --git a/arch/s390/power/swsusp_asm64.S b/arch/s390/kernel/swsusp_asm64.S
index b26df5c5933e..7cd6b096f0d1 100644
--- a/arch/s390/power/swsusp_asm64.S
+++ b/arch/s390/kernel/swsusp_asm64.S
@@ -21,7 +21,7 @@
21 * This function runs with disabled interrupts. 21 * This function runs with disabled interrupts.
22 */ 22 */
23 .section .text 23 .section .text
24 .align 2 24 .align 4
25 .globl swsusp_arch_suspend 25 .globl swsusp_arch_suspend
26swsusp_arch_suspend: 26swsusp_arch_suspend:
27 stmg %r6,%r15,__SF_GPRS(%r15) 27 stmg %r6,%r15,__SF_GPRS(%r15)
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index d4c8e9c47c81..54e327e9af04 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -60,6 +60,7 @@
60#define TICK_SIZE tick 60#define TICK_SIZE tick
61 61
62u64 sched_clock_base_cc = -1; /* Force to data section. */ 62u64 sched_clock_base_cc = -1; /* Force to data section. */
63EXPORT_SYMBOL_GPL(sched_clock_base_cc);
63 64
64static DEFINE_PER_CPU(struct clock_event_device, comparators); 65static DEFINE_PER_CPU(struct clock_event_device, comparators);
65 66
@@ -68,7 +69,7 @@ static DEFINE_PER_CPU(struct clock_event_device, comparators);
68 */ 69 */
69unsigned long long notrace sched_clock(void) 70unsigned long long notrace sched_clock(void)
70{ 71{
71 return ((get_clock_xt() - sched_clock_base_cc) * 125) >> 9; 72 return (get_clock_monotonic() * 125) >> 9;
72} 73}
73 74
74/* 75/*
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index a53db23ee092..7315f9e67e1d 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -52,55 +52,18 @@ SECTIONS
52 . = ALIGN(PAGE_SIZE); 52 . = ALIGN(PAGE_SIZE);
53 _eshared = .; /* End of shareable data */ 53 _eshared = .; /* End of shareable data */
54 54
55 . = ALIGN(16); /* Exception table */ 55 EXCEPTION_TABLE(16) :data
56 __ex_table : {
57 __start___ex_table = .;
58 *(__ex_table)
59 __stop___ex_table = .;
60 } :data
61
62 .data : { /* Data */
63 DATA_DATA
64 CONSTRUCTORS
65 }
66
67 . = ALIGN(PAGE_SIZE);
68 .data_nosave : {
69 __nosave_begin = .;
70 *(.data.nosave)
71 }
72 . = ALIGN(PAGE_SIZE);
73 __nosave_end = .;
74
75 . = ALIGN(PAGE_SIZE);
76 .data.page_aligned : {
77 *(.data.idt)
78 }
79 56
80 . = ALIGN(0x100); 57 RW_DATA_SECTION(0x100, PAGE_SIZE, THREAD_SIZE)
81 .data.cacheline_aligned : {
82 *(.data.cacheline_aligned)
83 }
84 58
85 . = ALIGN(0x100);
86 .data.read_mostly : {
87 *(.data.read_mostly)
88 }
89 _edata = .; /* End of data section */ 59 _edata = .; /* End of data section */
90 60
91 . = ALIGN(THREAD_SIZE); /* init_task */
92 .data.init_task : {
93 *(.data.init_task)
94 }
95
96 /* will be freed after init */ 61 /* will be freed after init */
97 . = ALIGN(PAGE_SIZE); /* Init code and data */ 62 . = ALIGN(PAGE_SIZE); /* Init code and data */
98 __init_begin = .; 63 __init_begin = .;
99 .init.text : { 64
100 _sinittext = .; 65 INIT_TEXT_SECTION(PAGE_SIZE)
101 INIT_TEXT 66
102 _einittext = .;
103 }
104 /* 67 /*
105 * .exit.text is discarded at runtime, not link time, 68 * .exit.text is discarded at runtime, not link time,
106 * to deal with references from __bug_table 69 * to deal with references from __bug_table
@@ -111,49 +74,13 @@ SECTIONS
111 74
112 /* early.c uses stsi, which requires page aligned data. */ 75 /* early.c uses stsi, which requires page aligned data. */
113 . = ALIGN(PAGE_SIZE); 76 . = ALIGN(PAGE_SIZE);
114 .init.data : { 77 INIT_DATA_SECTION(0x100)
115 INIT_DATA
116 }
117 . = ALIGN(0x100);
118 .init.setup : {
119 __setup_start = .;
120 *(.init.setup)
121 __setup_end = .;
122 }
123 .initcall.init : {
124 __initcall_start = .;
125 INITCALLS
126 __initcall_end = .;
127 }
128
129 .con_initcall.init : {
130 __con_initcall_start = .;
131 *(.con_initcall.init)
132 __con_initcall_end = .;
133 }
134 SECURITY_INIT
135
136#ifdef CONFIG_BLK_DEV_INITRD
137 . = ALIGN(0x100);
138 .init.ramfs : {
139 __initramfs_start = .;
140 *(.init.ramfs)
141 . = ALIGN(2);
142 __initramfs_end = .;
143 }
144#endif
145 78
146 PERCPU(PAGE_SIZE) 79 PERCPU(PAGE_SIZE)
147 . = ALIGN(PAGE_SIZE); 80 . = ALIGN(PAGE_SIZE);
148 __init_end = .; /* freed after init ends here */ 81 __init_end = .; /* freed after init ends here */
149 82
150 /* BSS */ 83 BSS_SECTION(0, 2, 0)
151 .bss : {
152 __bss_start = .;
153 *(.bss)
154 . = ALIGN(2);
155 __bss_stop = .;
156 }
157 84
158 _end = . ; 85 _end = . ;
159 86
diff --git a/arch/s390/mm/Makefile b/arch/s390/mm/Makefile
index db05661ac895..eec054484419 100644
--- a/arch/s390/mm/Makefile
+++ b/arch/s390/mm/Makefile
@@ -2,7 +2,7 @@
2# Makefile for the linux s390-specific parts of the memory manager. 2# Makefile for the linux s390-specific parts of the memory manager.
3# 3#
4 4
5obj-y := init.o fault.o extmem.o mmap.o vmem.o pgtable.o maccess.o 5obj-y := init.o fault.o extmem.o mmap.o vmem.o pgtable.o maccess.o \
6 page-states.o
6obj-$(CONFIG_CMM) += cmm.o 7obj-$(CONFIG_CMM) += cmm.o
7obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o 8obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
8obj-$(CONFIG_PAGE_STATES) += page-states.o
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index e5e119fe03b2..1abbadd497e1 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -10,6 +10,7 @@
10 * Copyright (C) 1995 Linus Torvalds 10 * Copyright (C) 1995 Linus Torvalds
11 */ 11 */
12 12
13#include <linux/perf_counter.h>
13#include <linux/signal.h> 14#include <linux/signal.h>
14#include <linux/sched.h> 15#include <linux/sched.h>
15#include <linux/kernel.h> 16#include <linux/kernel.h>
@@ -305,7 +306,7 @@ do_exception(struct pt_regs *regs, unsigned long error_code, int write)
305 * interrupts again and then search the VMAs 306 * interrupts again and then search the VMAs
306 */ 307 */
307 local_irq_enable(); 308 local_irq_enable();
308 309 perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
309 down_read(&mm->mmap_sem); 310 down_read(&mm->mmap_sem);
310 311
311 si_code = SEGV_MAPERR; 312 si_code = SEGV_MAPERR;
@@ -363,11 +364,15 @@ good_area:
363 } 364 }
364 BUG(); 365 BUG();
365 } 366 }
366 if (fault & VM_FAULT_MAJOR) 367 if (fault & VM_FAULT_MAJOR) {
367 tsk->maj_flt++; 368 tsk->maj_flt++;
368 else 369 perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
370 regs, address);
371 } else {
369 tsk->min_flt++; 372 tsk->min_flt++;
370 373 perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
374 regs, address);
375 }
371 up_read(&mm->mmap_sem); 376 up_read(&mm->mmap_sem);
372 /* 377 /*
373 * The instruction that caused the program check will 378 * The instruction that caused the program check will
diff --git a/arch/s390/mm/page-states.c b/arch/s390/mm/page-states.c
index fc0ad73ffd90..f92ec203ad92 100644
--- a/arch/s390/mm/page-states.c
+++ b/arch/s390/mm/page-states.c
@@ -1,6 +1,4 @@
1/* 1/*
2 * arch/s390/mm/page-states.c
3 *
4 * Copyright IBM Corp. 2008 2 * Copyright IBM Corp. 2008
5 * 3 *
6 * Guest page hinting for unused pages. 4 * Guest page hinting for unused pages.
@@ -17,11 +15,12 @@
17#define ESSA_SET_STABLE 1 15#define ESSA_SET_STABLE 1
18#define ESSA_SET_UNUSED 2 16#define ESSA_SET_UNUSED 2
19 17
20static int cmma_flag; 18static int cmma_flag = 1;
21 19
22static int __init cmma(char *str) 20static int __init cmma(char *str)
23{ 21{
24 char *parm; 22 char *parm;
23
25 parm = strstrip(str); 24 parm = strstrip(str);
26 if (strcmp(parm, "yes") == 0 || strcmp(parm, "on") == 0) { 25 if (strcmp(parm, "yes") == 0 || strcmp(parm, "on") == 0) {
27 cmma_flag = 1; 26 cmma_flag = 1;
@@ -32,7 +31,6 @@ static int __init cmma(char *str)
32 return 1; 31 return 1;
33 return 0; 32 return 0;
34} 33}
35
36__setup("cmma=", cmma); 34__setup("cmma=", cmma);
37 35
38void __init cmma_init(void) 36void __init cmma_init(void)
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 565667207985..c70215247071 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -78,9 +78,9 @@ unsigned long *crst_table_alloc(struct mm_struct *mm, int noexec)
78 } 78 }
79 page->index = page_to_phys(shadow); 79 page->index = page_to_phys(shadow);
80 } 80 }
81 spin_lock(&mm->page_table_lock); 81 spin_lock(&mm->context.list_lock);
82 list_add(&page->lru, &mm->context.crst_list); 82 list_add(&page->lru, &mm->context.crst_list);
83 spin_unlock(&mm->page_table_lock); 83 spin_unlock(&mm->context.list_lock);
84 return (unsigned long *) page_to_phys(page); 84 return (unsigned long *) page_to_phys(page);
85} 85}
86 86
@@ -89,9 +89,9 @@ void crst_table_free(struct mm_struct *mm, unsigned long *table)
89 unsigned long *shadow = get_shadow_table(table); 89 unsigned long *shadow = get_shadow_table(table);
90 struct page *page = virt_to_page(table); 90 struct page *page = virt_to_page(table);
91 91
92 spin_lock(&mm->page_table_lock); 92 spin_lock(&mm->context.list_lock);
93 list_del(&page->lru); 93 list_del(&page->lru);
94 spin_unlock(&mm->page_table_lock); 94 spin_unlock(&mm->context.list_lock);
95 if (shadow) 95 if (shadow)
96 free_pages((unsigned long) shadow, ALLOC_ORDER); 96 free_pages((unsigned long) shadow, ALLOC_ORDER);
97 free_pages((unsigned long) table, ALLOC_ORDER); 97 free_pages((unsigned long) table, ALLOC_ORDER);
@@ -182,7 +182,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
182 unsigned long bits; 182 unsigned long bits;
183 183
184 bits = (mm->context.noexec || mm->context.has_pgste) ? 3UL : 1UL; 184 bits = (mm->context.noexec || mm->context.has_pgste) ? 3UL : 1UL;
185 spin_lock(&mm->page_table_lock); 185 spin_lock(&mm->context.list_lock);
186 page = NULL; 186 page = NULL;
187 if (!list_empty(&mm->context.pgtable_list)) { 187 if (!list_empty(&mm->context.pgtable_list)) {
188 page = list_first_entry(&mm->context.pgtable_list, 188 page = list_first_entry(&mm->context.pgtable_list,
@@ -191,7 +191,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
191 page = NULL; 191 page = NULL;
192 } 192 }
193 if (!page) { 193 if (!page) {
194 spin_unlock(&mm->page_table_lock); 194 spin_unlock(&mm->context.list_lock);
195 page = alloc_page(GFP_KERNEL|__GFP_REPEAT); 195 page = alloc_page(GFP_KERNEL|__GFP_REPEAT);
196 if (!page) 196 if (!page)
197 return NULL; 197 return NULL;
@@ -202,7 +202,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
202 clear_table_pgstes(table); 202 clear_table_pgstes(table);
203 else 203 else
204 clear_table(table, _PAGE_TYPE_EMPTY, PAGE_SIZE); 204 clear_table(table, _PAGE_TYPE_EMPTY, PAGE_SIZE);
205 spin_lock(&mm->page_table_lock); 205 spin_lock(&mm->context.list_lock);
206 list_add(&page->lru, &mm->context.pgtable_list); 206 list_add(&page->lru, &mm->context.pgtable_list);
207 } 207 }
208 table = (unsigned long *) page_to_phys(page); 208 table = (unsigned long *) page_to_phys(page);
@@ -213,7 +213,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
213 page->flags |= bits; 213 page->flags |= bits;
214 if ((page->flags & FRAG_MASK) == ((1UL << TABLES_PER_PAGE) - 1)) 214 if ((page->flags & FRAG_MASK) == ((1UL << TABLES_PER_PAGE) - 1))
215 list_move_tail(&page->lru, &mm->context.pgtable_list); 215 list_move_tail(&page->lru, &mm->context.pgtable_list);
216 spin_unlock(&mm->page_table_lock); 216 spin_unlock(&mm->context.list_lock);
217 return table; 217 return table;
218} 218}
219 219
@@ -225,7 +225,7 @@ void page_table_free(struct mm_struct *mm, unsigned long *table)
225 bits = (mm->context.noexec || mm->context.has_pgste) ? 3UL : 1UL; 225 bits = (mm->context.noexec || mm->context.has_pgste) ? 3UL : 1UL;
226 bits <<= (__pa(table) & (PAGE_SIZE - 1)) / 256 / sizeof(unsigned long); 226 bits <<= (__pa(table) & (PAGE_SIZE - 1)) / 256 / sizeof(unsigned long);
227 page = pfn_to_page(__pa(table) >> PAGE_SHIFT); 227 page = pfn_to_page(__pa(table) >> PAGE_SHIFT);
228 spin_lock(&mm->page_table_lock); 228 spin_lock(&mm->context.list_lock);
229 page->flags ^= bits; 229 page->flags ^= bits;
230 if (page->flags & FRAG_MASK) { 230 if (page->flags & FRAG_MASK) {
231 /* Page now has some free pgtable fragments. */ 231 /* Page now has some free pgtable fragments. */
@@ -234,7 +234,7 @@ void page_table_free(struct mm_struct *mm, unsigned long *table)
234 } else 234 } else
235 /* All fragments of the 4K page have been freed. */ 235 /* All fragments of the 4K page have been freed. */
236 list_del(&page->lru); 236 list_del(&page->lru);
237 spin_unlock(&mm->page_table_lock); 237 spin_unlock(&mm->context.list_lock);
238 if (page) { 238 if (page) {
239 pgtable_page_dtor(page); 239 pgtable_page_dtor(page);
240 __free_page(page); 240 __free_page(page);
@@ -245,7 +245,7 @@ void disable_noexec(struct mm_struct *mm, struct task_struct *tsk)
245{ 245{
246 struct page *page; 246 struct page *page;
247 247
248 spin_lock(&mm->page_table_lock); 248 spin_lock(&mm->context.list_lock);
249 /* Free shadow region and segment tables. */ 249 /* Free shadow region and segment tables. */
250 list_for_each_entry(page, &mm->context.crst_list, lru) 250 list_for_each_entry(page, &mm->context.crst_list, lru)
251 if (page->index) { 251 if (page->index) {
@@ -255,7 +255,7 @@ void disable_noexec(struct mm_struct *mm, struct task_struct *tsk)
255 /* "Free" second halves of page tables. */ 255 /* "Free" second halves of page tables. */
256 list_for_each_entry(page, &mm->context.pgtable_list, lru) 256 list_for_each_entry(page, &mm->context.pgtable_list, lru)
257 page->flags &= ~SECOND_HALVES; 257 page->flags &= ~SECOND_HALVES;
258 spin_unlock(&mm->page_table_lock); 258 spin_unlock(&mm->context.list_lock);
259 mm->context.noexec = 0; 259 mm->context.noexec = 0;
260 update_mm(mm, tsk); 260 update_mm(mm, tsk);
261} 261}
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index e4868bfc672f..5f91a38d7592 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -331,6 +331,7 @@ void __init vmem_map_init(void)
331 unsigned long start, end; 331 unsigned long start, end;
332 int i; 332 int i;
333 333
334 spin_lock_init(&init_mm.context.list_lock);
334 INIT_LIST_HEAD(&init_mm.context.crst_list); 335 INIT_LIST_HEAD(&init_mm.context.crst_list);
335 INIT_LIST_HEAD(&init_mm.context.pgtable_list); 336 INIT_LIST_HEAD(&init_mm.context.pgtable_list);
336 init_mm.context.noexec = 0; 337 init_mm.context.noexec = 0;
diff --git a/arch/s390/power/Makefile b/arch/s390/power/Makefile
deleted file mode 100644
index 973bb45a8fec..000000000000
--- a/arch/s390/power/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
1#
2# Makefile for s390 PM support
3#
4
5obj-$(CONFIG_HIBERNATION) += suspend.o
6obj-$(CONFIG_HIBERNATION) += swsusp.o
7obj-$(CONFIG_HIBERNATION) += swsusp_64.o
8obj-$(CONFIG_HIBERNATION) += swsusp_asm64.o
diff --git a/arch/s390/power/suspend.c b/arch/s390/power/suspend.c
deleted file mode 100644
index b3351eceebbe..000000000000
--- a/arch/s390/power/suspend.c
+++ /dev/null
@@ -1,40 +0,0 @@
1/*
2 * Suspend support specific for s390.
3 *
4 * Copyright IBM Corp. 2009
5 *
6 * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com>
7 */
8
9#include <linux/mm.h>
10#include <linux/suspend.h>
11#include <linux/reboot.h>
12#include <linux/pfn.h>
13#include <asm/sections.h>
14#include <asm/ipl.h>
15
16/*
17 * References to section boundaries
18 */
19extern const void __nosave_begin, __nosave_end;
20
21/*
22 * check if given pfn is in the 'nosave' or in the read only NSS section
23 */
24int pfn_is_nosave(unsigned long pfn)
25{
26 unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
27 unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end))
28 >> PAGE_SHIFT;
29 unsigned long eshared_pfn = PFN_DOWN(__pa(&_eshared)) - 1;
30 unsigned long stext_pfn = PFN_DOWN(__pa(&_stext));
31
32 if (pfn >= nosave_begin_pfn && pfn < nosave_end_pfn)
33 return 1;
34 if (pfn >= stext_pfn && pfn <= eshared_pfn) {
35 if (ipl_info.type == IPL_TYPE_NSS)
36 return 1;
37 } else if ((tprot(pfn * PAGE_SIZE) && pfn > 0))
38 return 1;
39 return 0;
40}
diff --git a/arch/s390/power/swsusp_64.c b/arch/s390/power/swsusp_64.c
deleted file mode 100644
index 9516a517d72f..000000000000
--- a/arch/s390/power/swsusp_64.c
+++ /dev/null
@@ -1,17 +0,0 @@
1/*
2 * Support for suspend and resume on s390
3 *
4 * Copyright IBM Corp. 2009
5 *
6 * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com>
7 *
8 */
9
10#include <asm/system.h>
11#include <linux/interrupt.h>
12
13void do_after_copyback(void)
14{
15 mb();
16}
17
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-31 19:03:06 -0500