aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-s390
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-s390')
-rw-r--r--include/asm-s390/ccwgroup.h7
-rw-r--r--include/asm-s390/hugetlb.h183
-rw-r--r--include/asm-s390/page.h49
-rw-r--r--include/asm-s390/pgtable.h21
-rw-r--r--include/asm-s390/processor.h9
-rw-r--r--include/asm-s390/ptrace.h2
-rw-r--r--include/asm-s390/qdio.h1
-rw-r--r--include/asm-s390/setup.h39
-rw-r--r--include/asm-s390/smp.h12
-rw-r--r--include/asm-s390/sparsemem.h18
-rw-r--r--include/asm-s390/sysinfo.h5
-rw-r--r--include/asm-s390/system.h18
-rw-r--r--include/asm-s390/thread_info.h2
-rw-r--r--include/asm-s390/tlbflush.h1
-rw-r--r--include/asm-s390/topology.h4
-rw-r--r--include/asm-s390/types.h48
-rw-r--r--include/asm-s390/unaligned.h25
17 files changed, 322 insertions, 122 deletions
diff --git a/include/asm-s390/ccwgroup.h b/include/asm-s390/ccwgroup.h
index 289053ef5e60..a27f68985a79 100644
--- a/include/asm-s390/ccwgroup.h
+++ b/include/asm-s390/ccwgroup.h
@@ -57,10 +57,9 @@ struct ccwgroup_driver {
57 57
58extern int ccwgroup_driver_register (struct ccwgroup_driver *cdriver); 58extern int ccwgroup_driver_register (struct ccwgroup_driver *cdriver);
59extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver); 59extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver);
60extern int ccwgroup_create (struct device *root, 60int ccwgroup_create_from_string(struct device *root, unsigned int creator_id,
61 unsigned int creator_id, 61 struct ccw_driver *cdrv, int num_devices,
62 struct ccw_driver *gdrv, 62 const char *buf);
63 int argc, char *argv[]);
64 63
65extern int ccwgroup_probe_ccwdev(struct ccw_device *cdev); 64extern int ccwgroup_probe_ccwdev(struct ccw_device *cdev);
66extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev); 65extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev);
diff --git a/include/asm-s390/hugetlb.h b/include/asm-s390/hugetlb.h
new file mode 100644
index 000000000000..600a776f8f75
--- /dev/null
+++ b/include/asm-s390/hugetlb.h
@@ -0,0 +1,183 @@
1/*
2 * IBM System z Huge TLB Page Support for Kernel.
3 *
4 * Copyright IBM Corp. 2008
5 * Author(s): Gerald Schaefer <gerald.schaefer@de.ibm.com>
6 */
7
8#ifndef _ASM_S390_HUGETLB_H
9#define _ASM_S390_HUGETLB_H
10
11#include <asm/page.h>
12#include <asm/pgtable.h>
13
14
15#define is_hugepage_only_range(mm, addr, len) 0
16#define hugetlb_free_pgd_range free_pgd_range
17
18void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
19 pte_t *ptep, pte_t pte);
20
21/*
22 * If the arch doesn't supply something else, assume that hugepage
23 * size aligned regions are ok without further preparation.
24 */
25static inline int prepare_hugepage_range(unsigned long addr, unsigned long len)
26{
27 if (len & ~HPAGE_MASK)
28 return -EINVAL;
29 if (addr & ~HPAGE_MASK)
30 return -EINVAL;
31 return 0;
32}
33
34#define hugetlb_prefault_arch_hook(mm) do { } while (0)
35
36int arch_prepare_hugepage(struct page *page);
37void arch_release_hugepage(struct page *page);
38
39static inline pte_t pte_mkhuge(pte_t pte)
40{
41 /*
42 * PROT_NONE needs to be remapped from the pte type to the ste type.
43 * The HW invalid bit is also different for pte and ste. The pte
44 * invalid bit happens to be the same as the ste _SEGMENT_ENTRY_LARGE
45 * bit, so we don't have to clear it.
46 */
47 if (pte_val(pte) & _PAGE_INVALID) {
48 if (pte_val(pte) & _PAGE_SWT)
49 pte_val(pte) |= _HPAGE_TYPE_NONE;
50 pte_val(pte) |= _SEGMENT_ENTRY_INV;
51 }
52 /*
53 * Clear SW pte bits SWT and SWX, there are no SW bits in a segment
54 * table entry.
55 */
56 pte_val(pte) &= ~(_PAGE_SWT | _PAGE_SWX);
57 /*
58 * Also set the change-override bit because we don't need dirty bit
59 * tracking for hugetlbfs pages.
60 */
61 pte_val(pte) |= (_SEGMENT_ENTRY_LARGE | _SEGMENT_ENTRY_CO);
62 return pte;
63}
64
65static inline pte_t huge_pte_wrprotect(pte_t pte)
66{
67 pte_val(pte) |= _PAGE_RO;
68 return pte;
69}
70
71static inline int huge_pte_none(pte_t pte)
72{
73 return (pte_val(pte) & _SEGMENT_ENTRY_INV) &&
74 !(pte_val(pte) & _SEGMENT_ENTRY_RO);
75}
76
77static inline pte_t huge_ptep_get(pte_t *ptep)
78{
79 pte_t pte = *ptep;
80 unsigned long mask;
81
82 if (!MACHINE_HAS_HPAGE) {
83 ptep = (pte_t *) (pte_val(pte) & _SEGMENT_ENTRY_ORIGIN);
84 if (ptep) {
85 mask = pte_val(pte) &
86 (_SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO);
87 pte = pte_mkhuge(*ptep);
88 pte_val(pte) |= mask;
89 }
90 }
91 return pte;
92}
93
94static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
95 unsigned long addr, pte_t *ptep)
96{
97 pte_t pte = huge_ptep_get(ptep);
98
99 pmd_clear((pmd_t *) ptep);
100 return pte;
101}
102
103static inline void __pmd_csp(pmd_t *pmdp)
104{
105 register unsigned long reg2 asm("2") = pmd_val(*pmdp);
106 register unsigned long reg3 asm("3") = pmd_val(*pmdp) |
107 _SEGMENT_ENTRY_INV;
108 register unsigned long reg4 asm("4") = ((unsigned long) pmdp) + 5;
109
110 asm volatile(
111 " csp %1,%3"
112 : "=m" (*pmdp)
113 : "d" (reg2), "d" (reg3), "d" (reg4), "m" (*pmdp) : "cc");
114 pmd_val(*pmdp) = _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY;
115}
116
117static inline void __pmd_idte(unsigned long address, pmd_t *pmdp)
118{
119 unsigned long sto = (unsigned long) pmdp -
120 pmd_index(address) * sizeof(pmd_t);
121
122 if (!(pmd_val(*pmdp) & _SEGMENT_ENTRY_INV)) {
123 asm volatile(
124 " .insn rrf,0xb98e0000,%2,%3,0,0"
125 : "=m" (*pmdp)
126 : "m" (*pmdp), "a" (sto),
127 "a" ((address & HPAGE_MASK))
128 );
129 }
130 pmd_val(*pmdp) = _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY;
131}
132
133static inline void huge_ptep_invalidate(struct mm_struct *mm,
134 unsigned long address, pte_t *ptep)
135{
136 pmd_t *pmdp = (pmd_t *) ptep;
137
138 if (!MACHINE_HAS_IDTE) {
139 __pmd_csp(pmdp);
140 if (mm->context.noexec) {
141 pmdp = get_shadow_table(pmdp);
142 __pmd_csp(pmdp);
143 }
144 return;
145 }
146
147 __pmd_idte(address, pmdp);
148 if (mm->context.noexec) {
149 pmdp = get_shadow_table(pmdp);
150 __pmd_idte(address, pmdp);
151 }
152 return;
153}
154
155#define huge_ptep_set_access_flags(__vma, __addr, __ptep, __entry, __dirty) \
156({ \
157 int __changed = !pte_same(huge_ptep_get(__ptep), __entry); \
158 if (__changed) { \
159 huge_ptep_invalidate((__vma)->vm_mm, __addr, __ptep); \
160 set_huge_pte_at((__vma)->vm_mm, __addr, __ptep, __entry); \
161 } \
162 __changed; \
163})
164
165#define huge_ptep_set_wrprotect(__mm, __addr, __ptep) \
166({ \
167 pte_t __pte = huge_ptep_get(__ptep); \
168 if (pte_write(__pte)) { \
169 if (atomic_read(&(__mm)->mm_users) > 1 || \
170 (__mm) != current->active_mm) \
171 huge_ptep_invalidate(__mm, __addr, __ptep); \
172 set_huge_pte_at(__mm, __addr, __ptep, \
173 huge_pte_wrprotect(__pte)); \
174 } \
175})
176
177static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
178 unsigned long address, pte_t *ptep)
179{
180 huge_ptep_invalidate(vma->vm_mm, address, ptep);
181}
182
183#endif /* _ASM_S390_HUGETLB_H */
diff --git a/include/asm-s390/page.h b/include/asm-s390/page.h
index fe7f92b6ae6d..f0f4579eac13 100644
--- a/include/asm-s390/page.h
+++ b/include/asm-s390/page.h
@@ -19,17 +19,34 @@
19#define PAGE_DEFAULT_ACC 0 19#define PAGE_DEFAULT_ACC 0
20#define PAGE_DEFAULT_KEY (PAGE_DEFAULT_ACC << 4) 20#define PAGE_DEFAULT_KEY (PAGE_DEFAULT_ACC << 4)
21 21
22#define HPAGE_SHIFT 20
23#define HPAGE_SIZE (1UL << HPAGE_SHIFT)
24#define HPAGE_MASK (~(HPAGE_SIZE - 1))
25#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
26
27#define ARCH_HAS_SETCLEAR_HUGE_PTE
28#define ARCH_HAS_HUGE_PTE_TYPE
29#define ARCH_HAS_PREPARE_HUGEPAGE
30#define ARCH_HAS_HUGEPAGE_CLEAR_FLUSH
31
22#include <asm/setup.h> 32#include <asm/setup.h>
23#ifndef __ASSEMBLY__ 33#ifndef __ASSEMBLY__
24 34
25static inline void clear_page(void *page) 35static inline void clear_page(void *page)
26{ 36{
27 register unsigned long reg1 asm ("1") = 0; 37 if (MACHINE_HAS_PFMF) {
28 register void *reg2 asm ("2") = page; 38 asm volatile(
29 register unsigned long reg3 asm ("3") = 4096; 39 " .insn rre,0xb9af0000,%0,%1"
30 asm volatile( 40 : : "d" (0x10000), "a" (page) : "memory", "cc");
31 " mvcl 2,0" 41 } else {
32 : "+d" (reg2), "+d" (reg3) : "d" (reg1) : "memory", "cc"); 42 register unsigned long reg1 asm ("1") = 0;
43 register void *reg2 asm ("2") = page;
44 register unsigned long reg3 asm ("3") = 4096;
45 asm volatile(
46 " mvcl 2,0"
47 : "+d" (reg2), "+d" (reg3) : "d" (reg1)
48 : "memory", "cc");
49 }
33} 50}
34 51
35static inline void copy_page(void *to, void *from) 52static inline void copy_page(void *to, void *from)
@@ -108,26 +125,6 @@ page_get_storage_key(unsigned long addr)
108 return skey; 125 return skey;
109} 126}
110 127
111extern unsigned long max_pfn;
112
113static inline int pfn_valid(unsigned long pfn)
114{
115 unsigned long dummy;
116 int ccode;
117
118 if (pfn >= max_pfn)
119 return 0;
120
121 asm volatile(
122 " lra %0,0(%2)\n"
123 " ipm %1\n"
124 " srl %1,28\n"
125 : "=d" (dummy), "=d" (ccode)
126 : "a" (pfn << PAGE_SHIFT)
127 : "cc");
128 return !ccode;
129}
130
131#endif /* !__ASSEMBLY__ */ 128#endif /* !__ASSEMBLY__ */
132 129
133/* to align the pointer to the (next) page boundary */ 130/* to align the pointer to the (next) page boundary */
diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h
index f8347ce9c5a1..c7f4f8e3e297 100644
--- a/include/asm-s390/pgtable.h
+++ b/include/asm-s390/pgtable.h
@@ -129,7 +129,7 @@ extern char empty_zero_page[PAGE_SIZE];
129#define VMEM_MAX_PAGES ((VMEM_MAP_END - VMALLOC_END) / sizeof(struct page)) 129#define VMEM_MAX_PAGES ((VMEM_MAP_END - VMALLOC_END) / sizeof(struct page))
130#define VMEM_MAX_PFN min(VMALLOC_START >> PAGE_SHIFT, VMEM_MAX_PAGES) 130#define VMEM_MAX_PFN min(VMALLOC_START >> PAGE_SHIFT, VMEM_MAX_PAGES)
131#define VMEM_MAX_PHYS ((VMEM_MAX_PFN << PAGE_SHIFT) & ~((16 << 20) - 1)) 131#define VMEM_MAX_PHYS ((VMEM_MAX_PFN << PAGE_SHIFT) & ~((16 << 20) - 1))
132#define VMEM_MAP ((struct page *) VMALLOC_END) 132#define vmemmap ((struct page *) VMALLOC_END)
133 133
134/* 134/*
135 * A 31 bit pagetable entry of S390 has following format: 135 * A 31 bit pagetable entry of S390 has following format:
@@ -234,6 +234,15 @@ extern char empty_zero_page[PAGE_SIZE];
234#define _PAGE_TYPE_EX_RW 0x002 234#define _PAGE_TYPE_EX_RW 0x002
235 235
236/* 236/*
237 * Only four types for huge pages, using the invalid bit and protection bit
238 * of a segment table entry.
239 */
240#define _HPAGE_TYPE_EMPTY 0x020 /* _SEGMENT_ENTRY_INV */
241#define _HPAGE_TYPE_NONE 0x220
242#define _HPAGE_TYPE_RO 0x200 /* _SEGMENT_ENTRY_RO */
243#define _HPAGE_TYPE_RW 0x000
244
245/*
237 * PTE type bits are rather complicated. handle_pte_fault uses pte_present, 246 * PTE type bits are rather complicated. handle_pte_fault uses pte_present,
238 * pte_none and pte_file to find out the pte type WITHOUT holding the page 247 * pte_none and pte_file to find out the pte type WITHOUT holding the page
239 * table lock. ptep_clear_flush on the other hand uses ptep_clear_flush to 248 * table lock. ptep_clear_flush on the other hand uses ptep_clear_flush to
@@ -325,6 +334,9 @@ extern char empty_zero_page[PAGE_SIZE];
325#define _SEGMENT_ENTRY (0) 334#define _SEGMENT_ENTRY (0)
326#define _SEGMENT_ENTRY_EMPTY (_SEGMENT_ENTRY_INV) 335#define _SEGMENT_ENTRY_EMPTY (_SEGMENT_ENTRY_INV)
327 336
337#define _SEGMENT_ENTRY_LARGE 0x400 /* STE-format control, large page */
338#define _SEGMENT_ENTRY_CO 0x100 /* change-recording override */
339
328#endif /* __s390x__ */ 340#endif /* __s390x__ */
329 341
330/* 342/*
@@ -1063,8 +1075,8 @@ static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset)
1063 1075
1064#define kern_addr_valid(addr) (1) 1076#define kern_addr_valid(addr) (1)
1065 1077
1066extern int add_shared_memory(unsigned long start, unsigned long size); 1078extern int vmem_add_mapping(unsigned long start, unsigned long size);
1067extern int remove_shared_memory(unsigned long start, unsigned long size); 1079extern int vmem_remove_mapping(unsigned long start, unsigned long size);
1068extern int s390_enable_sie(void); 1080extern int s390_enable_sie(void);
1069 1081
1070/* 1082/*
@@ -1072,9 +1084,6 @@ extern int s390_enable_sie(void);
1072 */ 1084 */
1073#define pgtable_cache_init() do { } while (0) 1085#define pgtable_cache_init() do { } while (0)
1074 1086
1075#define __HAVE_ARCH_MEMMAP_INIT
1076extern void memmap_init(unsigned long, int, unsigned long, unsigned long);
1077
1078#include <asm-generic/pgtable.h> 1087#include <asm-generic/pgtable.h>
1079 1088
1080#endif /* _S390_PAGE_H */ 1089#endif /* _S390_PAGE_H */
diff --git a/include/asm-s390/processor.h b/include/asm-s390/processor.h
index 8eaf343a12a8..a00f79dd323b 100644
--- a/include/asm-s390/processor.h
+++ b/include/asm-s390/processor.h
@@ -172,16 +172,7 @@ extern unsigned long thread_saved_pc(struct task_struct *t);
172 */ 172 */
173extern void task_show_regs(struct seq_file *m, struct task_struct *task); 173extern void task_show_regs(struct seq_file *m, struct task_struct *task);
174 174
175extern void show_registers(struct pt_regs *regs);
176extern void show_code(struct pt_regs *regs); 175extern void show_code(struct pt_regs *regs);
177extern void show_trace(struct task_struct *task, unsigned long *sp);
178#ifdef CONFIG_64BIT
179extern void show_last_breaking_event(struct pt_regs *regs);
180#else
181static inline void show_last_breaking_event(struct pt_regs *regs)
182{
183}
184#endif
185 176
186unsigned long get_wchan(struct task_struct *p); 177unsigned long get_wchan(struct task_struct *p);
187#define task_pt_regs(tsk) ((struct pt_regs *) \ 178#define task_pt_regs(tsk) ((struct pt_regs *) \
diff --git a/include/asm-s390/ptrace.h b/include/asm-s390/ptrace.h
index 61f6952f2e35..441d7c260857 100644
--- a/include/asm-s390/ptrace.h
+++ b/include/asm-s390/ptrace.h
@@ -463,8 +463,6 @@ struct user_regs_struct
463}; 463};
464 464
465#ifdef __KERNEL__ 465#ifdef __KERNEL__
466#define __ARCH_SYS_PTRACE 1
467
468/* 466/*
469 * These are defined as per linux/ptrace.h, which see. 467 * These are defined as per linux/ptrace.h, which see.
470 */ 468 */
diff --git a/include/asm-s390/qdio.h b/include/asm-s390/qdio.h
index 4b8ff55f680e..11240342a0f4 100644
--- a/include/asm-s390/qdio.h
+++ b/include/asm-s390/qdio.h
@@ -127,6 +127,7 @@ extern int do_QDIO(struct ccw_device*, unsigned int flags,
127 unsigned int qidx,unsigned int count, 127 unsigned int qidx,unsigned int count,
128 struct qdio_buffer *buffers); 128 struct qdio_buffer *buffers);
129 129
130extern int qdio_get_ssqd_pct(struct ccw_device*);
130extern int qdio_synchronize(struct ccw_device*, unsigned int flags, 131extern int qdio_synchronize(struct ccw_device*, unsigned int flags,
131 unsigned int queue_number); 132 unsigned int queue_number);
132 133
diff --git a/include/asm-s390/setup.h b/include/asm-s390/setup.h
index aaf4b518b940..ba69674012a7 100644
--- a/include/asm-s390/setup.h
+++ b/include/asm-s390/setup.h
@@ -59,23 +59,42 @@ extern unsigned int s390_noexec;
59 */ 59 */
60extern unsigned long machine_flags; 60extern unsigned long machine_flags;
61 61
62#define MACHINE_IS_VM (machine_flags & 1) 62#define MACHINE_FLAG_VM (1UL << 0)
63#define MACHINE_IS_P390 (machine_flags & 4) 63#define MACHINE_FLAG_IEEE (1UL << 1)
64#define MACHINE_HAS_MVPG (machine_flags & 16) 64#define MACHINE_FLAG_P390 (1UL << 2)
65#define MACHINE_IS_KVM (machine_flags & 64) 65#define MACHINE_FLAG_CSP (1UL << 3)
66#define MACHINE_HAS_IDTE (machine_flags & 128) 66#define MACHINE_FLAG_MVPG (1UL << 4)
67#define MACHINE_HAS_DIAG9C (machine_flags & 256) 67#define MACHINE_FLAG_DIAG44 (1UL << 5)
68#define MACHINE_FLAG_IDTE (1UL << 6)
69#define MACHINE_FLAG_DIAG9C (1UL << 7)
70#define MACHINE_FLAG_MVCOS (1UL << 8)
71#define MACHINE_FLAG_KVM (1UL << 9)
72#define MACHINE_FLAG_HPAGE (1UL << 10)
73#define MACHINE_FLAG_PFMF (1UL << 11)
74
75#define MACHINE_IS_VM (machine_flags & MACHINE_FLAG_VM)
76#define MACHINE_IS_KVM (machine_flags & MACHINE_FLAG_KVM)
77#define MACHINE_IS_P390 (machine_flags & MACHINE_FLAG_P390)
78#define MACHINE_HAS_DIAG9C (machine_flags & MACHINE_FLAG_DIAG9C)
68 79
69#ifndef __s390x__ 80#ifndef __s390x__
70#define MACHINE_HAS_IEEE (machine_flags & 2) 81#define MACHINE_HAS_IEEE (machine_flags & MACHINE_FLAG_IEEE)
71#define MACHINE_HAS_CSP (machine_flags & 8) 82#define MACHINE_HAS_CSP (machine_flags & MACHINE_FLAG_CSP)
83#define MACHINE_HAS_IDTE (0)
72#define MACHINE_HAS_DIAG44 (1) 84#define MACHINE_HAS_DIAG44 (1)
85#define MACHINE_HAS_MVPG (machine_flags & MACHINE_FLAG_MVPG)
73#define MACHINE_HAS_MVCOS (0) 86#define MACHINE_HAS_MVCOS (0)
87#define MACHINE_HAS_HPAGE (0)
88#define MACHINE_HAS_PFMF (0)
74#else /* __s390x__ */ 89#else /* __s390x__ */
75#define MACHINE_HAS_IEEE (1) 90#define MACHINE_HAS_IEEE (1)
76#define MACHINE_HAS_CSP (1) 91#define MACHINE_HAS_CSP (1)
77#define MACHINE_HAS_DIAG44 (machine_flags & 32) 92#define MACHINE_HAS_IDTE (machine_flags & MACHINE_FLAG_IDTE)
78#define MACHINE_HAS_MVCOS (machine_flags & 512) 93#define MACHINE_HAS_DIAG44 (machine_flags & MACHINE_FLAG_DIAG44)
94#define MACHINE_HAS_MVPG (1)
95#define MACHINE_HAS_MVCOS (machine_flags & MACHINE_FLAG_MVCOS)
96#define MACHINE_HAS_HPAGE (machine_flags & MACHINE_FLAG_HPAGE)
97#define MACHINE_HAS_PFMF (machine_flags & MACHINE_FLAG_PFMF)
79#endif /* __s390x__ */ 98#endif /* __s390x__ */
80 99
81#define MACHINE_HAS_SCLP (!MACHINE_IS_P390) 100#define MACHINE_HAS_SCLP (!MACHINE_IS_P390)
diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h
index 6f3821a6a902..ae89cf2478fc 100644
--- a/include/asm-s390/smp.h
+++ b/include/asm-s390/smp.h
@@ -19,6 +19,7 @@
19#include <asm/lowcore.h> 19#include <asm/lowcore.h>
20#include <asm/sigp.h> 20#include <asm/sigp.h>
21#include <asm/ptrace.h> 21#include <asm/ptrace.h>
22#include <asm/system.h>
22 23
23/* 24/*
24 s390 specific smp.c headers 25 s390 specific smp.c headers
@@ -53,10 +54,7 @@ extern void machine_power_off_smp(void);
53 54
54static inline __u16 hard_smp_processor_id(void) 55static inline __u16 hard_smp_processor_id(void)
55{ 56{
56 __u16 cpu_address; 57 return stap();
57
58 asm volatile("stap %0" : "=m" (cpu_address));
59 return cpu_address;
60} 58}
61 59
62/* 60/*
@@ -108,5 +106,11 @@ static inline void smp_send_stop(void)
108#define smp_cpu_not_running(cpu) 1 106#define smp_cpu_not_running(cpu) 1
109#endif 107#endif
110 108
109#ifdef CONFIG_HOTPLUG_CPU
110extern int smp_rescan_cpus(void);
111#else
112static inline int smp_rescan_cpus(void) { return 0; }
113#endif
114
111extern union save_area *zfcpdump_save_areas[NR_CPUS + 1]; 115extern union save_area *zfcpdump_save_areas[NR_CPUS + 1];
112#endif 116#endif
diff --git a/include/asm-s390/sparsemem.h b/include/asm-s390/sparsemem.h
new file mode 100644
index 000000000000..06dfdab6c0e8
--- /dev/null
+++ b/include/asm-s390/sparsemem.h
@@ -0,0 +1,18 @@
1#ifndef _ASM_S390_SPARSEMEM_H
2#define _ASM_S390_SPARSEMEM_H
3
4#define SECTION_SIZE_BITS 25
5
6#ifdef CONFIG_64BIT
7
8#define MAX_PHYSADDR_BITS 42
9#define MAX_PHYSMEM_BITS 42
10
11#else
12
13#define MAX_PHYSADDR_BITS 31
14#define MAX_PHYSMEM_BITS 31
15
16#endif /* CONFIG_64BIT */
17
18#endif /* _ASM_S390_SPARSEMEM_H */
diff --git a/include/asm-s390/sysinfo.h b/include/asm-s390/sysinfo.h
index abe10ae15e46..79d01343f8b0 100644
--- a/include/asm-s390/sysinfo.h
+++ b/include/asm-s390/sysinfo.h
@@ -11,6 +11,9 @@
11 * Christian Borntraeger <borntraeger@de.ibm.com> 11 * Christian Borntraeger <borntraeger@de.ibm.com>
12 */ 12 */
13 13
14#ifndef __ASM_S390_SYSINFO_H
15#define __ASM_S390_SYSINFO_H
16
14struct sysinfo_1_1_1 { 17struct sysinfo_1_1_1 {
15 char reserved_0[32]; 18 char reserved_0[32];
16 char manufacturer[16]; 19 char manufacturer[16];
@@ -114,3 +117,5 @@ static inline int stsi(void *sysinfo, int fc, int sel1, int sel2)
114 : "cc", "memory"); 117 : "cc", "memory");
115 return r0; 118 return r0;
116} 119}
120
121#endif /* __ASM_S390_SYSINFO_H */
diff --git a/include/asm-s390/system.h b/include/asm-s390/system.h
index 92098df4d6e3..c819ae25a842 100644
--- a/include/asm-s390/system.h
+++ b/include/asm-s390/system.h
@@ -16,6 +16,7 @@
16#include <asm/ptrace.h> 16#include <asm/ptrace.h>
17#include <asm/setup.h> 17#include <asm/setup.h>
18#include <asm/processor.h> 18#include <asm/processor.h>
19#include <asm/lowcore.h>
19 20
20#ifdef __KERNEL__ 21#ifdef __KERNEL__
21 22
@@ -422,6 +423,23 @@ extern void smp_ctl_clear_bit(int cr, int bit);
422 423
423#endif /* CONFIG_SMP */ 424#endif /* CONFIG_SMP */
424 425
426static inline unsigned int stfl(void)
427{
428 asm volatile(
429 " .insn s,0xb2b10000,0(0)\n" /* stfl */
430 "0:\n"
431 EX_TABLE(0b,0b));
432 return S390_lowcore.stfl_fac_list;
433}
434
435static inline unsigned short stap(void)
436{
437 unsigned short cpu_address;
438
439 asm volatile("stap %0" : "=m" (cpu_address));
440 return cpu_address;
441}
442
425extern void (*_machine_restart)(char *command); 443extern void (*_machine_restart)(char *command);
426extern void (*_machine_halt)(void); 444extern void (*_machine_halt)(void);
427extern void (*_machine_power_off)(void); 445extern void (*_machine_power_off)(void);
diff --git a/include/asm-s390/thread_info.h b/include/asm-s390/thread_info.h
index 0a518915bf90..99bbed99a3b2 100644
--- a/include/asm-s390/thread_info.h
+++ b/include/asm-s390/thread_info.h
@@ -89,7 +89,6 @@ static inline struct thread_info *current_thread_info(void)
89 * thread information flags bit numbers 89 * thread information flags bit numbers
90 */ 90 */
91#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ 91#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
92#define TIF_RESTORE_SIGMASK 1 /* restore signal mask in do_signal() */
93#define TIF_SIGPENDING 2 /* signal pending */ 92#define TIF_SIGPENDING 2 /* signal pending */
94#define TIF_NEED_RESCHED 3 /* rescheduling necessary */ 93#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
95#define TIF_RESTART_SVC 4 /* restart svc with new svc number */ 94#define TIF_RESTART_SVC 4 /* restart svc with new svc number */
@@ -101,6 +100,7 @@ static inline struct thread_info *current_thread_info(void)
101 TIF_NEED_RESCHED */ 100 TIF_NEED_RESCHED */
102#define TIF_31BIT 18 /* 32bit process */ 101#define TIF_31BIT 18 /* 32bit process */
103#define TIF_MEMDIE 19 102#define TIF_MEMDIE 19
103#define TIF_RESTORE_SIGMASK 20 /* restore signal mask in do_signal() */
104 104
105#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) 105#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
106#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK) 106#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
diff --git a/include/asm-s390/tlbflush.h b/include/asm-s390/tlbflush.h
index 9e57a93d7de1..d60394b9745e 100644
--- a/include/asm-s390/tlbflush.h
+++ b/include/asm-s390/tlbflush.h
@@ -2,6 +2,7 @@
2#define _S390_TLBFLUSH_H 2#define _S390_TLBFLUSH_H
3 3
4#include <linux/mm.h> 4#include <linux/mm.h>
5#include <linux/sched.h>
5#include <asm/processor.h> 6#include <asm/processor.h>
6#include <asm/pgalloc.h> 7#include <asm/pgalloc.h>
7 8
diff --git a/include/asm-s390/topology.h b/include/asm-s390/topology.h
index 8e97b06f298a..d96c91643458 100644
--- a/include/asm-s390/topology.h
+++ b/include/asm-s390/topology.h
@@ -7,6 +7,10 @@
7 7
8cpumask_t cpu_coregroup_map(unsigned int cpu); 8cpumask_t cpu_coregroup_map(unsigned int cpu);
9 9
10extern cpumask_t cpu_core_map[NR_CPUS];
11
12#define topology_core_siblings(cpu) (cpu_core_map[cpu])
13
10int topology_set_cpu_management(int fc); 14int topology_set_cpu_management(int fc);
11void topology_schedule_update(void); 15void topology_schedule_update(void);
12 16
diff --git a/include/asm-s390/types.h b/include/asm-s390/types.h
index 2c5879ae90ca..78dda038dd47 100644
--- a/include/asm-s390/types.h
+++ b/include/asm-s390/types.h
@@ -9,34 +9,16 @@
9#ifndef _S390_TYPES_H 9#ifndef _S390_TYPES_H
10#define _S390_TYPES_H 10#define _S390_TYPES_H
11 11
12#ifndef __s390x__
13# include <asm-generic/int-l64.h>
14#else
15# include <asm-generic/int-ll64.h>
16#endif
17
12#ifndef __ASSEMBLY__ 18#ifndef __ASSEMBLY__
13 19
14typedef unsigned short umode_t; 20typedef unsigned short umode_t;
15 21
16/*
17 * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
18 * header files exported to user space
19 */
20
21typedef __signed__ char __s8;
22typedef unsigned char __u8;
23
24typedef __signed__ short __s16;
25typedef unsigned short __u16;
26
27typedef __signed__ int __s32;
28typedef unsigned int __u32;
29
30#ifndef __s390x__
31#if defined(__GNUC__)
32__extension__ typedef __signed__ long long __s64;
33__extension__ typedef unsigned long long __u64;
34#endif
35#else /* __s390x__ */
36typedef __signed__ long __s64;
37typedef unsigned long __u64;
38#endif
39
40/* A address type so that arithmetic can be done on it & it can be upgraded to 22/* A address type so that arithmetic can be done on it & it can be upgraded to
41 64 bit when necessary 23 64 bit when necessary
42*/ 24*/
@@ -58,24 +40,6 @@ typedef __signed__ long saddr_t;
58 40
59#ifndef __ASSEMBLY__ 41#ifndef __ASSEMBLY__
60 42
61
62typedef signed char s8;
63typedef unsigned char u8;
64
65typedef signed short s16;
66typedef unsigned short u16;
67
68typedef signed int s32;
69typedef unsigned int u32;
70
71#ifndef __s390x__
72typedef signed long long s64;
73typedef unsigned long long u64;
74#else /* __s390x__ */
75typedef signed long s64;
76typedef unsigned long u64;
77#endif /* __s390x__ */
78
79typedef u32 dma_addr_t; 43typedef u32 dma_addr_t;
80 44
81#ifndef __s390x__ 45#ifndef __s390x__
diff --git a/include/asm-s390/unaligned.h b/include/asm-s390/unaligned.h
index 8ee86dbedd1f..da9627afe5d8 100644
--- a/include/asm-s390/unaligned.h
+++ b/include/asm-s390/unaligned.h
@@ -1,24 +1,13 @@
1/* 1#ifndef _ASM_S390_UNALIGNED_H
2 * include/asm-s390/unaligned.h 2#define _ASM_S390_UNALIGNED_H
3 *
4 * S390 version
5 *
6 * Derived from "include/asm-i386/unaligned.h"
7 */
8
9#ifndef __S390_UNALIGNED_H
10#define __S390_UNALIGNED_H
11 3
12/* 4/*
13 * The S390 can do unaligned accesses itself. 5 * The S390 can do unaligned accesses itself.
14 *
15 * The strange macros are there to make sure these can't
16 * be misused in a way that makes them not work on other
17 * architectures where unaligned accesses aren't as simple.
18 */ 6 */
7#include <linux/unaligned/access_ok.h>
8#include <linux/unaligned/generic.h>
19 9
20#define get_unaligned(ptr) (*(ptr)) 10#define get_unaligned __get_unaligned_be
21 11#define put_unaligned __put_unaligned_be
22#define put_unaligned(val, ptr) ((void)( *(ptr) = (val) ))
23 12
24#endif 13#endif /* _ASM_S390_UNALIGNED_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-25 09:22:21 -0500