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-rw-r--r--include/asm-s390/dasd.h2
-rw-r--r--include/asm-s390/page.h22
-rw-r--r--include/asm-s390/pgalloc.h3
-rw-r--r--include/asm-s390/pgtable.h16
4 files changed, 37 insertions, 6 deletions
diff --git a/include/asm-s390/dasd.h b/include/asm-s390/dasd.h
index c042f9578081..604f68fa6f56 100644
--- a/include/asm-s390/dasd.h
+++ b/include/asm-s390/dasd.h
@@ -69,11 +69,13 @@ typedef struct dasd_information2_t {
69 * 0x01: readonly (ro) 69 * 0x01: readonly (ro)
70 * 0x02: use diag discipline (diag) 70 * 0x02: use diag discipline (diag)
71 * 0x04: set the device initially online (internal use only) 71 * 0x04: set the device initially online (internal use only)
72 * 0x08: enable ERP related logging
72 */ 73 */
73#define DASD_FEATURE_DEFAULT 0x00 74#define DASD_FEATURE_DEFAULT 0x00
74#define DASD_FEATURE_READONLY 0x01 75#define DASD_FEATURE_READONLY 0x01
75#define DASD_FEATURE_USEDIAG 0x02 76#define DASD_FEATURE_USEDIAG 0x02
76#define DASD_FEATURE_INITIAL_ONLINE 0x04 77#define DASD_FEATURE_INITIAL_ONLINE 0x04
78#define DASD_FEATURE_ERPLOG 0x08
77 79
78#define DASD_PARTN_BITS 2 80#define DASD_PARTN_BITS 2
79 81
diff --git a/include/asm-s390/page.h b/include/asm-s390/page.h
index 363ea761d5ee..05ea6f172786 100644
--- a/include/asm-s390/page.h
+++ b/include/asm-s390/page.h
@@ -127,6 +127,26 @@ page_get_storage_key(unsigned long addr)
127 return skey; 127 return skey;
128} 128}
129 129
130extern unsigned long max_pfn;
131
132static inline int pfn_valid(unsigned long pfn)
133{
134 unsigned long dummy;
135 int ccode;
136
137 if (pfn >= max_pfn)
138 return 0;
139
140 asm volatile(
141 " lra %0,0(%2)\n"
142 " ipm %1\n"
143 " srl %1,28\n"
144 : "=d" (dummy), "=d" (ccode)
145 : "a" (pfn << PAGE_SHIFT)
146 : "cc");
147 return !ccode;
148}
149
130#endif /* !__ASSEMBLY__ */ 150#endif /* !__ASSEMBLY__ */
131 151
132/* to align the pointer to the (next) page boundary */ 152/* to align the pointer to the (next) page boundary */
@@ -138,8 +158,6 @@ page_get_storage_key(unsigned long addr)
138#define __va(x) (void *)(unsigned long)(x) 158#define __va(x) (void *)(unsigned long)(x)
139#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) 159#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
140#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) 160#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
141
142#define pfn_valid(pfn) ((pfn) < max_mapnr)
143#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) 161#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
144 162
145#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ 163#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
diff --git a/include/asm-s390/pgalloc.h b/include/asm-s390/pgalloc.h
index 28619de5ecae..0707a7e2fc16 100644
--- a/include/asm-s390/pgalloc.h
+++ b/include/asm-s390/pgalloc.h
@@ -25,8 +25,11 @@ extern void diag10(unsigned long addr);
25 * Page allocation orders. 25 * Page allocation orders.
26 */ 26 */
27#ifndef __s390x__ 27#ifndef __s390x__
28# define PTE_ALLOC_ORDER 0
29# define PMD_ALLOC_ORDER 0
28# define PGD_ALLOC_ORDER 1 30# define PGD_ALLOC_ORDER 1
29#else /* __s390x__ */ 31#else /* __s390x__ */
32# define PTE_ALLOC_ORDER 0
30# define PMD_ALLOC_ORDER 2 33# define PMD_ALLOC_ORDER 2
31# define PGD_ALLOC_ORDER 2 34# define PGD_ALLOC_ORDER 2
32#endif /* __s390x__ */ 35#endif /* __s390x__ */
diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h
index 2d968a69ed1f..ae61aca5d483 100644
--- a/include/asm-s390/pgtable.h
+++ b/include/asm-s390/pgtable.h
@@ -107,23 +107,25 @@ extern char empty_zero_page[PAGE_SIZE];
107 * The vmalloc() routines leaves a hole of 4kB between each vmalloced 107 * The vmalloc() routines leaves a hole of 4kB between each vmalloced
108 * area for the same reason. ;) 108 * area for the same reason. ;)
109 */ 109 */
110extern unsigned long vmalloc_end;
110#define VMALLOC_OFFSET (8*1024*1024) 111#define VMALLOC_OFFSET (8*1024*1024)
111#define VMALLOC_START (((unsigned long) high_memory + VMALLOC_OFFSET) \ 112#define VMALLOC_START (((unsigned long) high_memory + VMALLOC_OFFSET) \
112 & ~(VMALLOC_OFFSET-1)) 113 & ~(VMALLOC_OFFSET-1))
114#define VMALLOC_END vmalloc_end
113 115
114/* 116/*
115 * We need some free virtual space to be able to do vmalloc. 117 * We need some free virtual space to be able to do vmalloc.
116 * VMALLOC_MIN_SIZE defines the minimum size of the vmalloc 118 * VMALLOC_MIN_SIZE defines the minimum size of the vmalloc
117 * area. On a machine with 2GB memory we make sure that we 119 * area. On a machine with 2GB memory we make sure that we
118 * have at least 128MB free space for vmalloc. On a machine 120 * have at least 128MB free space for vmalloc. On a machine
119 * with 4TB we make sure we have at least 1GB. 121 * with 4TB we make sure we have at least 128GB.
120 */ 122 */
121#ifndef __s390x__ 123#ifndef __s390x__
122#define VMALLOC_MIN_SIZE 0x8000000UL 124#define VMALLOC_MIN_SIZE 0x8000000UL
123#define VMALLOC_END 0x80000000UL 125#define VMALLOC_END_INIT 0x80000000UL
124#else /* __s390x__ */ 126#else /* __s390x__ */
125#define VMALLOC_MIN_SIZE 0x40000000UL 127#define VMALLOC_MIN_SIZE 0x2000000000UL
126#define VMALLOC_END 0x40000000000UL 128#define VMALLOC_END_INIT 0x40000000000UL
127#endif /* __s390x__ */ 129#endif /* __s390x__ */
128 130
129/* 131/*
@@ -815,11 +817,17 @@ static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset)
815 817
816#define kern_addr_valid(addr) (1) 818#define kern_addr_valid(addr) (1)
817 819
820extern int add_shared_memory(unsigned long start, unsigned long size);
821extern int remove_shared_memory(unsigned long start, unsigned long size);
822
818/* 823/*
819 * No page table caches to initialise 824 * No page table caches to initialise
820 */ 825 */
821#define pgtable_cache_init() do { } while (0) 826#define pgtable_cache_init() do { } while (0)
822 827
828#define __HAVE_ARCH_MEMMAP_INIT
829extern void memmap_init(unsigned long, int, unsigned long, unsigned long);
830
823#define __HAVE_ARCH_PTEP_ESTABLISH 831#define __HAVE_ARCH_PTEP_ESTABLISH
824#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS 832#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
825#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG 833#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG