提交 f1c1174f 编写于 作者: H Heiko Carstens 提交者: Martin Schwidefsky

s390/mm: use new mm defines instead of magic values

Reviewed-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
上级 c67da7c7
......@@ -191,7 +191,7 @@ struct arch_elf_state {
} while (0)
#define CORE_DUMP_USE_REGSET
#define ELF_EXEC_PAGESIZE 4096
#define ELF_EXEC_PAGESIZE PAGE_SIZE
/*
* This is the base location for PIE (ET_DYN with INTERP) loads. On
......
......@@ -81,7 +81,7 @@ struct ipl_parameter_block {
struct ipl_block_fcp fcp;
struct ipl_block_ccw ccw;
} ipl_info;
} __attribute__((packed,aligned(4096)));
} __packed __aligned(PAGE_SIZE);
/*
* IPL validity flags
......
......@@ -33,7 +33,7 @@ static inline int init_new_context(struct task_struct *tsk,
mm->context.use_cmma = 0;
#endif
switch (mm->context.asce_limit) {
case 1UL << 42:
case _REGION2_SIZE:
/*
* forked 3-level task, fall through to set new asce with new
* mm->pgd
......@@ -44,12 +44,12 @@ static inline int init_new_context(struct task_struct *tsk,
mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
_ASCE_USER_BITS | _ASCE_TYPE_REGION3;
break;
case 1UL << 53:
case _REGION1_SIZE:
/* forked 4-level task, set new asce with new mm->pgd */
mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
_ASCE_USER_BITS | _ASCE_TYPE_REGION2;
break;
case 1UL << 31:
case _REGION3_SIZE:
/* forked 2-level compat task, set new asce with new mm->pgd */
mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
_ASCE_USER_BITS | _ASCE_TYPE_SEGMENT;
......
......@@ -44,16 +44,16 @@ static inline void clear_table(unsigned long *s, unsigned long val, size_t n)
static inline void crst_table_init(unsigned long *crst, unsigned long entry)
{
clear_table(crst, entry, sizeof(unsigned long)*2048);
clear_table(crst, entry, _CRST_TABLE_SIZE);
}
static inline unsigned long pgd_entry_type(struct mm_struct *mm)
{
if (mm->context.asce_limit <= (1UL << 31))
if (mm->context.asce_limit <= _REGION3_SIZE)
return _SEGMENT_ENTRY_EMPTY;
if (mm->context.asce_limit <= (1UL << 42))
if (mm->context.asce_limit <= _REGION2_SIZE)
return _REGION3_ENTRY_EMPTY;
if (mm->context.asce_limit <= (1UL << 53))
if (mm->context.asce_limit <= _REGION1_SIZE)
return _REGION2_ENTRY_EMPTY;
return _REGION1_ENTRY_EMPTY;
}
......@@ -121,7 +121,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
if (!table)
return NULL;
if (mm->context.asce_limit == (1UL << 31)) {
if (mm->context.asce_limit == _REGION3_SIZE) {
/* Forking a compat process with 2 page table levels */
if (!pgtable_pmd_page_ctor(virt_to_page(table))) {
crst_table_free(mm, table);
......@@ -133,7 +133,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
if (mm->context.asce_limit == (1UL << 31))
if (mm->context.asce_limit == _REGION3_SIZE)
pgtable_pmd_page_dtor(virt_to_page(pgd));
crst_table_free(mm, (unsigned long *) pgd);
}
......
......@@ -80,7 +80,7 @@ struct qdr {
u32 qkey : 4;
u32 : 28;
struct qdesfmt0 qdf0[126];
} __attribute__ ((packed, aligned(4096)));
} __packed __aligned(PAGE_SIZE);
#define QIB_AC_OUTBOUND_PCI_SUPPORTED 0x40
#define QIB_RFLAGS_ENABLE_QEBSM 0x80
......
......@@ -130,7 +130,7 @@ static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
unsigned long address)
{
if (tlb->mm->context.asce_limit <= (1UL << 31))
if (tlb->mm->context.asce_limit <= _REGION3_SIZE)
return;
pgtable_pmd_page_dtor(virt_to_page(pmd));
tlb_remove_table(tlb, pmd);
......@@ -146,7 +146,7 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
static inline void p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d,
unsigned long address)
{
if (tlb->mm->context.asce_limit <= (1UL << 53))
if (tlb->mm->context.asce_limit <= _REGION1_SIZE)
return;
tlb_remove_table(tlb, p4d);
}
......@@ -161,7 +161,7 @@ static inline void p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d,
static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud,
unsigned long address)
{
if (tlb->mm->context.asce_limit <= (1UL << 42))
if (tlb->mm->context.asce_limit <= _REGION2_SIZE)
return;
tlb_remove_table(tlb, pud);
}
......
......@@ -76,7 +76,7 @@ void dump_trace(dump_trace_func_t func, void *data, struct task_struct *task,
frame_size = STACK_FRAME_OVERHEAD + sizeof(struct pt_regs);
#ifdef CONFIG_CHECK_STACK
sp = __dump_trace(func, data, sp,
S390_lowcore.panic_stack + frame_size - 4096,
S390_lowcore.panic_stack + frame_size - PAGE_SIZE,
S390_lowcore.panic_stack + frame_size);
#endif
sp = __dump_trace(func, data, sp,
......
......@@ -7,6 +7,7 @@
*/
#include <linux/linkage.h>
#include <asm/page.h>
#include <asm/sigp.h>
/*
......@@ -55,8 +56,8 @@ ENTRY(relocate_kernel)
.back_pgm:
lmg %r0,%r15,gprregs-.base(%r13)
.top:
lghi %r7,4096 # load PAGE_SIZE in r7
lghi %r9,4096 # load PAGE_SIZE in r9
lghi %r7,PAGE_SIZE # load PAGE_SIZE in r7
lghi %r9,PAGE_SIZE # load PAGE_SIZE in r9
lg %r5,0(%r2) # read another word for indirection page
aghi %r2,8 # increment pointer
tml %r5,0x1 # is it a destination page?
......
......@@ -305,7 +305,7 @@ static void __init setup_lowcore(void)
/*
* Setup lowcore for boot cpu
*/
BUILD_BUG_ON(sizeof(struct lowcore) != LC_PAGES * 4096);
BUILD_BUG_ON(sizeof(struct lowcore) != LC_PAGES * PAGE_SIZE);
lc = memblock_virt_alloc_low(sizeof(*lc), sizeof(*lc));
lc->restart_psw.mask = PSW_KERNEL_BITS;
lc->restart_psw.addr = (unsigned long) restart_int_handler;
......@@ -469,10 +469,10 @@ static void __init setup_memory_end(void)
vmalloc_size = VMALLOC_END ?: (128UL << 30) - MODULES_LEN;
tmp = (memory_end ?: max_physmem_end) / PAGE_SIZE;
tmp = tmp * (sizeof(struct page) + PAGE_SIZE);
if (tmp + vmalloc_size + MODULES_LEN <= (1UL << 42))
vmax = 1UL << 42; /* 3-level kernel page table */
if (tmp + vmalloc_size + MODULES_LEN <= _REGION2_SIZE)
vmax = _REGION2_SIZE; /* 3-level kernel page table */
else
vmax = 1UL << 53; /* 4-level kernel page table */
vmax = _REGION1_SIZE; /* 4-level kernel page table */
/* module area is at the end of the kernel address space. */
MODULES_END = vmax;
MODULES_VADDR = MODULES_END - MODULES_LEN;
......
......@@ -2,6 +2,8 @@
* This is the infamous ld script for the 32 bits vdso
* library
*/
#include <asm/page.h>
#include <asm/vdso.h>
OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390")
......@@ -91,7 +93,7 @@ SECTIONS
.debug_ranges 0 : { *(.debug_ranges) }
.gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
. = ALIGN(4096);
. = ALIGN(PAGE_SIZE);
PROVIDE(_vdso_data = .);
/DISCARD/ : {
......
......@@ -2,6 +2,8 @@
* This is the infamous ld script for the 64 bits vdso
* library
*/
#include <asm/page.h>
#include <asm/vdso.h>
OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
......@@ -91,7 +93,7 @@ SECTIONS
.debug_ranges 0 : { *(.debug_ranges) }
.gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
. = ALIGN(4096);
. = ALIGN(PAGE_SIZE);
PROVIDE(_vdso_data = .);
/DISCARD/ : {
......
......@@ -135,7 +135,7 @@ static void dump_pagetable(unsigned long asce, unsigned long address)
pr_alert("AS:%016lx ", asce);
switch (asce & _ASCE_TYPE_MASK) {
case _ASCE_TYPE_REGION1:
table = table + ((address >> 53) & 0x7ff);
table += (address & _REGION1_INDEX) >> _REGION1_SHIFT;
if (bad_address(table))
goto bad;
pr_cont("R1:%016lx ", *table);
......@@ -144,7 +144,7 @@ static void dump_pagetable(unsigned long asce, unsigned long address)
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* fallthrough */
case _ASCE_TYPE_REGION2:
table = table + ((address >> 42) & 0x7ff);
table += (address & _REGION2_INDEX) >> _REGION2_SHIFT;
if (bad_address(table))
goto bad;
pr_cont("R2:%016lx ", *table);
......@@ -153,7 +153,7 @@ static void dump_pagetable(unsigned long asce, unsigned long address)
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* fallthrough */
case _ASCE_TYPE_REGION3:
table = table + ((address >> 31) & 0x7ff);
table += (address & _REGION3_INDEX) >> _REGION3_SHIFT;
if (bad_address(table))
goto bad;
pr_cont("R3:%016lx ", *table);
......@@ -162,7 +162,7 @@ static void dump_pagetable(unsigned long asce, unsigned long address)
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* fallthrough */
case _ASCE_TYPE_SEGMENT:
table = table + ((address >> 20) & 0x7ff);
table += (address & _SEGMENT_INDEX) >> _SEGMENT_SHIFT;
if (bad_address(table))
goto bad;
pr_cont("S:%016lx ", *table);
......@@ -170,7 +170,7 @@ static void dump_pagetable(unsigned long asce, unsigned long address)
goto out;
table = (unsigned long *)(*table & _SEGMENT_ENTRY_ORIGIN);
}
table = table + ((address >> 12) & 0xff);
table += (address & _PAGE_INDEX) >> _PAGE_SHIFT;
if (bad_address(table))
goto bad;
pr_cont("P:%016lx ", *table);
......
......@@ -36,16 +36,16 @@ static struct gmap *gmap_alloc(unsigned long limit)
unsigned long *table;
unsigned long etype, atype;
if (limit < (1UL << 31)) {
limit = (1UL << 31) - 1;
if (limit < _REGION3_SIZE) {
limit = _REGION3_SIZE - 1;
atype = _ASCE_TYPE_SEGMENT;
etype = _SEGMENT_ENTRY_EMPTY;
} else if (limit < (1UL << 42)) {
limit = (1UL << 42) - 1;
} else if (limit < _REGION2_SIZE) {
limit = _REGION2_SIZE - 1;
atype = _ASCE_TYPE_REGION3;
etype = _REGION3_ENTRY_EMPTY;
} else if (limit < (1UL << 53)) {
limit = (1UL << 53) - 1;
} else if (limit < _REGION1_SIZE) {
limit = _REGION1_SIZE - 1;
atype = _ASCE_TYPE_REGION2;
etype = _REGION2_ENTRY_EMPTY;
} else {
......@@ -65,7 +65,7 @@ static struct gmap *gmap_alloc(unsigned long limit)
spin_lock_init(&gmap->guest_table_lock);
spin_lock_init(&gmap->shadow_lock);
atomic_set(&gmap->ref_count, 1);
page = alloc_pages(GFP_KERNEL, 2);
page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER);
if (!page)
goto out_free;
page->index = 0;
......@@ -186,7 +186,7 @@ static void gmap_free(struct gmap *gmap)
gmap_flush_tlb(gmap);
/* Free all segment & region tables. */
list_for_each_entry_safe(page, next, &gmap->crst_list, lru)
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
gmap_radix_tree_free(&gmap->guest_to_host);
gmap_radix_tree_free(&gmap->host_to_guest);
......@@ -306,7 +306,7 @@ static int gmap_alloc_table(struct gmap *gmap, unsigned long *table,
unsigned long *new;
/* since we dont free the gmap table until gmap_free we can unlock */
page = alloc_pages(GFP_KERNEL, 2);
page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER);
if (!page)
return -ENOMEM;
new = (unsigned long *) page_to_phys(page);
......@@ -321,7 +321,7 @@ static int gmap_alloc_table(struct gmap *gmap, unsigned long *table,
}
spin_unlock(&gmap->guest_table_lock);
if (page)
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
return 0;
}
......@@ -546,30 +546,30 @@ int __gmap_link(struct gmap *gmap, unsigned long gaddr, unsigned long vmaddr)
/* Create higher level tables in the gmap page table */
table = gmap->table;
if ((gmap->asce & _ASCE_TYPE_MASK) >= _ASCE_TYPE_REGION1) {
table += (gaddr >> 53) & 0x7ff;
table += (gaddr & _REGION1_INDEX) >> _REGION1_SHIFT;
if ((*table & _REGION_ENTRY_INVALID) &&
gmap_alloc_table(gmap, table, _REGION2_ENTRY_EMPTY,
gaddr & 0xffe0000000000000UL))
gaddr & _REGION1_MASK))
return -ENOMEM;
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
}
if ((gmap->asce & _ASCE_TYPE_MASK) >= _ASCE_TYPE_REGION2) {
table += (gaddr >> 42) & 0x7ff;
table += (gaddr & _REGION2_INDEX) >> _REGION2_SHIFT;
if ((*table & _REGION_ENTRY_INVALID) &&
gmap_alloc_table(gmap, table, _REGION3_ENTRY_EMPTY,
gaddr & 0xfffffc0000000000UL))
gaddr & _REGION2_MASK))
return -ENOMEM;
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
}
if ((gmap->asce & _ASCE_TYPE_MASK) >= _ASCE_TYPE_REGION3) {
table += (gaddr >> 31) & 0x7ff;
table += (gaddr & _REGION3_INDEX) >> _REGION3_SHIFT;
if ((*table & _REGION_ENTRY_INVALID) &&
gmap_alloc_table(gmap, table, _SEGMENT_ENTRY_EMPTY,
gaddr & 0xffffffff80000000UL))
gaddr & _REGION3_MASK))
return -ENOMEM;
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
}
table += (gaddr >> 20) & 0x7ff;
table += (gaddr & _SEGMENT_INDEX) >> _SEGMENT_SHIFT;
/* Walk the parent mm page table */
mm = gmap->mm;
pgd = pgd_offset(mm, vmaddr);
......@@ -771,7 +771,7 @@ static inline unsigned long *gmap_table_walk(struct gmap *gmap,
table = gmap->table;
switch (gmap->asce & _ASCE_TYPE_MASK) {
case _ASCE_TYPE_REGION1:
table += (gaddr >> 53) & 0x7ff;
table += (gaddr & _REGION1_INDEX) >> _REGION1_SHIFT;
if (level == 4)
break;
if (*table & _REGION_ENTRY_INVALID)
......@@ -779,7 +779,7 @@ static inline unsigned long *gmap_table_walk(struct gmap *gmap,
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* Fallthrough */
case _ASCE_TYPE_REGION2:
table += (gaddr >> 42) & 0x7ff;
table += (gaddr & _REGION2_INDEX) >> _REGION2_SHIFT;
if (level == 3)
break;
if (*table & _REGION_ENTRY_INVALID)
......@@ -787,7 +787,7 @@ static inline unsigned long *gmap_table_walk(struct gmap *gmap,
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* Fallthrough */
case _ASCE_TYPE_REGION3:
table += (gaddr >> 31) & 0x7ff;
table += (gaddr & _REGION3_INDEX) >> _REGION3_SHIFT;
if (level == 2)
break;
if (*table & _REGION_ENTRY_INVALID)
......@@ -795,13 +795,13 @@ static inline unsigned long *gmap_table_walk(struct gmap *gmap,
table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN);
/* Fallthrough */
case _ASCE_TYPE_SEGMENT:
table += (gaddr >> 20) & 0x7ff;
table += (gaddr & _SEGMENT_INDEX) >> _SEGMENT_SHIFT;
if (level == 1)
break;
if (*table & _REGION_ENTRY_INVALID)
return NULL;
table = (unsigned long *)(*table & _SEGMENT_ENTRY_ORIGIN);
table += (gaddr >> 12) & 0xff;
table += (gaddr & _PAGE_INDEX) >> _PAGE_SHIFT;
}
return table;
}
......@@ -1126,7 +1126,7 @@ static void gmap_unshadow_page(struct gmap *sg, unsigned long raddr)
table = gmap_table_walk(sg, raddr, 0); /* get page table pointer */
if (!table || *table & _PAGE_INVALID)
return;
gmap_call_notifier(sg, raddr, raddr + (1UL << 12) - 1);
gmap_call_notifier(sg, raddr, raddr + _PAGE_SIZE - 1);
ptep_unshadow_pte(sg->mm, raddr, (pte_t *) table);
}
......@@ -1144,7 +1144,7 @@ static void __gmap_unshadow_pgt(struct gmap *sg, unsigned long raddr,
int i;
BUG_ON(!gmap_is_shadow(sg));
for (i = 0; i < 256; i++, raddr += 1UL << 12)
for (i = 0; i < _PAGE_ENTRIES; i++, raddr += _PAGE_SIZE)
pgt[i] = _PAGE_INVALID;
}
......@@ -1164,8 +1164,8 @@ static void gmap_unshadow_pgt(struct gmap *sg, unsigned long raddr)
ste = gmap_table_walk(sg, raddr, 1); /* get segment pointer */
if (!ste || !(*ste & _SEGMENT_ENTRY_ORIGIN))
return;
gmap_call_notifier(sg, raddr, raddr + (1UL << 20) - 1);
sto = (unsigned long) (ste - ((raddr >> 20) & 0x7ff));
gmap_call_notifier(sg, raddr, raddr + _SEGMENT_SIZE - 1);
sto = (unsigned long) (ste - ((raddr & _SEGMENT_INDEX) >> _SEGMENT_SHIFT));
gmap_idte_one(sto | _ASCE_TYPE_SEGMENT, raddr);
pgt = (unsigned long *)(*ste & _SEGMENT_ENTRY_ORIGIN);
*ste = _SEGMENT_ENTRY_EMPTY;
......@@ -1193,7 +1193,7 @@ static void __gmap_unshadow_sgt(struct gmap *sg, unsigned long raddr,
BUG_ON(!gmap_is_shadow(sg));
asce = (unsigned long) sgt | _ASCE_TYPE_SEGMENT;
for (i = 0; i < 2048; i++, raddr += 1UL << 20) {
for (i = 0; i < _CRST_ENTRIES; i++, raddr += _SEGMENT_SIZE) {
if (!(sgt[i] & _SEGMENT_ENTRY_ORIGIN))
continue;
pgt = (unsigned long *)(sgt[i] & _REGION_ENTRY_ORIGIN);
......@@ -1222,8 +1222,8 @@ static void gmap_unshadow_sgt(struct gmap *sg, unsigned long raddr)
r3e = gmap_table_walk(sg, raddr, 2); /* get region-3 pointer */
if (!r3e || !(*r3e & _REGION_ENTRY_ORIGIN))
return;
gmap_call_notifier(sg, raddr, raddr + (1UL << 31) - 1);
r3o = (unsigned long) (r3e - ((raddr >> 31) & 0x7ff));
gmap_call_notifier(sg, raddr, raddr + _REGION3_SIZE - 1);
r3o = (unsigned long) (r3e - ((raddr & _REGION3_INDEX) >> _REGION3_SHIFT));
gmap_idte_one(r3o | _ASCE_TYPE_REGION3, raddr);
sgt = (unsigned long *)(*r3e & _REGION_ENTRY_ORIGIN);
*r3e = _REGION3_ENTRY_EMPTY;
......@@ -1231,7 +1231,7 @@ static void gmap_unshadow_sgt(struct gmap *sg, unsigned long raddr)
/* Free segment table */
page = pfn_to_page(__pa(sgt) >> PAGE_SHIFT);
list_del(&page->lru);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
}
/**
......@@ -1251,7 +1251,7 @@ static void __gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr,
BUG_ON(!gmap_is_shadow(sg));
asce = (unsigned long) r3t | _ASCE_TYPE_REGION3;
for (i = 0; i < 2048; i++, raddr += 1UL << 31) {
for (i = 0; i < _CRST_ENTRIES; i++, raddr += _REGION3_SIZE) {
if (!(r3t[i] & _REGION_ENTRY_ORIGIN))
continue;
sgt = (unsigned long *)(r3t[i] & _REGION_ENTRY_ORIGIN);
......@@ -1260,7 +1260,7 @@ static void __gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr,
/* Free segment table */
page = pfn_to_page(__pa(sgt) >> PAGE_SHIFT);
list_del(&page->lru);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
}
}
......@@ -1280,8 +1280,8 @@ static void gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr)
r2e = gmap_table_walk(sg, raddr, 3); /* get region-2 pointer */
if (!r2e || !(*r2e & _REGION_ENTRY_ORIGIN))
return;
gmap_call_notifier(sg, raddr, raddr + (1UL << 42) - 1);
r2o = (unsigned long) (r2e - ((raddr >> 42) & 0x7ff));
gmap_call_notifier(sg, raddr, raddr + _REGION2_SIZE - 1);
r2o = (unsigned long) (r2e - ((raddr & _REGION2_INDEX) >> _REGION2_SHIFT));
gmap_idte_one(r2o | _ASCE_TYPE_REGION2, raddr);
r3t = (unsigned long *)(*r2e & _REGION_ENTRY_ORIGIN);
*r2e = _REGION2_ENTRY_EMPTY;
......@@ -1289,7 +1289,7 @@ static void gmap_unshadow_r3t(struct gmap *sg, unsigned long raddr)
/* Free region 3 table */
page = pfn_to_page(__pa(r3t) >> PAGE_SHIFT);
list_del(&page->lru);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
}
/**
......@@ -1309,7 +1309,7 @@ static void __gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr,
BUG_ON(!gmap_is_shadow(sg));
asce = (unsigned long) r2t | _ASCE_TYPE_REGION2;
for (i = 0; i < 2048; i++, raddr += 1UL << 42) {
for (i = 0; i < _CRST_ENTRIES; i++, raddr += _REGION2_SIZE) {
if (!(r2t[i] & _REGION_ENTRY_ORIGIN))
continue;
r3t = (unsigned long *)(r2t[i] & _REGION_ENTRY_ORIGIN);
......@@ -1318,7 +1318,7 @@ static void __gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr,
/* Free region 3 table */
page = pfn_to_page(__pa(r3t) >> PAGE_SHIFT);
list_del(&page->lru);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
}
}
......@@ -1338,8 +1338,8 @@ static void gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr)
r1e = gmap_table_walk(sg, raddr, 4); /* get region-1 pointer */
if (!r1e || !(*r1e & _REGION_ENTRY_ORIGIN))
return;
gmap_call_notifier(sg, raddr, raddr + (1UL << 53) - 1);
r1o = (unsigned long) (r1e - ((raddr >> 53) & 0x7ff));
gmap_call_notifier(sg, raddr, raddr + _REGION1_SIZE - 1);
r1o = (unsigned long) (r1e - ((raddr & _REGION1_INDEX) >> _REGION1_SHIFT));
gmap_idte_one(r1o | _ASCE_TYPE_REGION1, raddr);
r2t = (unsigned long *)(*r1e & _REGION_ENTRY_ORIGIN);
*r1e = _REGION1_ENTRY_EMPTY;
......@@ -1347,7 +1347,7 @@ static void gmap_unshadow_r2t(struct gmap *sg, unsigned long raddr)
/* Free region 2 table */
page = pfn_to_page(__pa(r2t) >> PAGE_SHIFT);
list_del(&page->lru);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
}
/**
......@@ -1367,7 +1367,7 @@ static void __gmap_unshadow_r1t(struct gmap *sg, unsigned long raddr,
BUG_ON(!gmap_is_shadow(sg));
asce = (unsigned long) r1t | _ASCE_TYPE_REGION1;
for (i = 0; i < 2048; i++, raddr += 1UL << 53) {
for (i = 0; i < _CRST_ENTRIES; i++, raddr += _REGION1_SIZE) {
if (!(r1t[i] & _REGION_ENTRY_ORIGIN))
continue;
r2t = (unsigned long *)(r1t[i] & _REGION_ENTRY_ORIGIN);
......@@ -1378,7 +1378,7 @@ static void __gmap_unshadow_r1t(struct gmap *sg, unsigned long raddr,
/* Free region 2 table */
page = pfn_to_page(__pa(r2t) >> PAGE_SHIFT);
list_del(&page->lru);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
}
}
......@@ -1535,7 +1535,7 @@ struct gmap *gmap_shadow(struct gmap *parent, unsigned long asce,
/* protect after insertion, so it will get properly invalidated */
down_read(&parent->mm->mmap_sem);
rc = gmap_protect_range(parent, asce & _ASCE_ORIGIN,
((asce & _ASCE_TABLE_LENGTH) + 1) * 4096,
((asce & _ASCE_TABLE_LENGTH) + 1) * PAGE_SIZE,
PROT_READ, PGSTE_VSIE_BIT);
up_read(&parent->mm->mmap_sem);
spin_lock(&parent->shadow_lock);
......@@ -1578,7 +1578,7 @@ int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t,
BUG_ON(!gmap_is_shadow(sg));
/* Allocate a shadow region second table */
page = alloc_pages(GFP_KERNEL, 2);
page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER);
if (!page)
return -ENOMEM;
page->index = r2t & _REGION_ENTRY_ORIGIN;
......@@ -1614,10 +1614,10 @@ int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t,
}
spin_unlock(&sg->guest_table_lock);
/* Make r2t read-only in parent gmap page table */
raddr = (saddr & 0xffe0000000000000UL) | _SHADOW_RMAP_REGION1;
raddr = (saddr & _REGION1_MASK) | _SHADOW_RMAP_REGION1;
origin = r2t & _REGION_ENTRY_ORIGIN;
offset = ((r2t & _REGION_ENTRY_OFFSET) >> 6) * 4096;
len = ((r2t & _REGION_ENTRY_LENGTH) + 1) * 4096 - offset;
offset = ((r2t & _REGION_ENTRY_OFFSET) >> 6) * PAGE_SIZE;
len = ((r2t & _REGION_ENTRY_LENGTH) + 1) * PAGE_SIZE - offset;
rc = gmap_protect_rmap(sg, raddr, origin + offset, len, PROT_READ);
spin_lock(&sg->guest_table_lock);
if (!rc) {
......@@ -1634,7 +1634,7 @@ int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t,
return rc;
out_free:
spin_unlock(&sg->guest_table_lock);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
return rc;
}
EXPORT_SYMBOL_GPL(gmap_shadow_r2t);
......@@ -1662,7 +1662,7 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t,
BUG_ON(!gmap_is_shadow(sg));
/* Allocate a shadow region second table */
page = alloc_pages(GFP_KERNEL, 2);
page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER);
if (!page)
return -ENOMEM;
page->index = r3t & _REGION_ENTRY_ORIGIN;
......@@ -1697,10 +1697,10 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t,
}
spin_unlock(&sg->guest_table_lock);
/* Make r3t read-only in parent gmap page table */
raddr = (saddr & 0xfffffc0000000000UL) | _SHADOW_RMAP_REGION2;
raddr = (saddr & _REGION2_MASK) | _SHADOW_RMAP_REGION2;
origin = r3t & _REGION_ENTRY_ORIGIN;
offset = ((r3t & _REGION_ENTRY_OFFSET) >> 6) * 4096;
len = ((r3t & _REGION_ENTRY_LENGTH) + 1) * 4096 - offset;
offset = ((r3t & _REGION_ENTRY_OFFSET) >> 6) * PAGE_SIZE;
len = ((r3t & _REGION_ENTRY_LENGTH) + 1) * PAGE_SIZE - offset;
rc = gmap_protect_rmap(sg, raddr, origin + offset, len, PROT_READ);
spin_lock(&sg->guest_table_lock);
if (!rc) {
......@@ -1717,7 +1717,7 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t,
return rc;
out_free:
spin_unlock(&sg->guest_table_lock);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
return rc;
}
EXPORT_SYMBOL_GPL(gmap_shadow_r3t);
......@@ -1745,7 +1745,7 @@ int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt,
BUG_ON(!gmap_is_shadow(sg) || (sgt & _REGION3_ENTRY_LARGE));
/* Allocate a shadow segment table */
page = alloc_pages(GFP_KERNEL, 2);
page = alloc_pages(GFP_KERNEL, CRST_ALLOC_ORDER);
if (!page)
return -ENOMEM;
page->index = sgt & _REGION_ENTRY_ORIGIN;
......@@ -1781,10 +1781,10 @@ int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt,
}
spin_unlock(&sg->guest_table_lock);
/* Make sgt read-only in parent gmap page table */
raddr = (saddr & 0xffffffff80000000UL) | _SHADOW_RMAP_REGION3;
raddr = (saddr & _REGION3_MASK) | _SHADOW_RMAP_REGION3;
origin = sgt & _REGION_ENTRY_ORIGIN;
offset = ((sgt & _REGION_ENTRY_OFFSET) >> 6) * 4096;
len = ((sgt & _REGION_ENTRY_LENGTH) + 1) * 4096 - offset;
offset = ((sgt & _REGION_ENTRY_OFFSET) >> 6) * PAGE_SIZE;
len = ((sgt & _REGION_ENTRY_LENGTH) + 1) * PAGE_SIZE - offset;
rc = gmap_protect_rmap(sg, raddr, origin + offset, len, PROT_READ);
spin_lock(&sg->guest_table_lock);
if (!rc) {
......@@ -1801,7 +1801,7 @@ int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt,
return rc;
out_free:
spin_unlock(&sg->guest_table_lock);
__free_pages(page, 2);
__free_pages(page, CRST_ALLOC_ORDER);
return rc;
}
EXPORT_SYMBOL_GPL(gmap_shadow_sgt);
......@@ -1902,7 +1902,7 @@ int gmap_shadow_pgt(struct gmap *sg, unsigned long saddr, unsigned long pgt,
}
spin_unlock(&sg->guest_table_lock);
/* Make pgt read-only in parent gmap page table (not the pgste) */
raddr = (saddr & 0xfffffffffff00000UL) | _SHADOW_RMAP_SEGMENT;
raddr = (saddr & _SEGMENT_MASK) | _SHADOW_RMAP_SEGMENT;
origin = pgt & _SEGMENT_ENTRY_ORIGIN & PAGE_MASK;
rc = gmap_protect_rmap(sg, raddr, origin, PAGE_SIZE, PROT_READ);
spin_lock(&sg->guest_table_lock);
......@@ -2021,7 +2021,7 @@ static void gmap_shadow_notify(struct gmap *sg, unsigned long vmaddr,
}
/* Check for top level table */
start = sg->orig_asce & _ASCE_ORIGIN;
end = start + ((sg->orig_asce & _ASCE_TABLE_LENGTH) + 1) * 4096;
end = start + ((sg->orig_asce & _ASCE_TABLE_LENGTH) + 1) * PAGE_SIZE;
if (!(sg->orig_asce & _ASCE_REAL_SPACE) && gaddr >= start &&
gaddr < end) {
/* The complete shadow table has to go */
......@@ -2032,7 +2032,7 @@ static void gmap_shadow_notify(struct gmap *sg, unsigned long vmaddr,
return;
}
/* Remove the page table tree from on specific entry */
head = radix_tree_delete(&sg->host_to_rmap, vmaddr >> 12);
head = radix_tree_delete(&sg->host_to_rmap, vmaddr >> PAGE_SHIFT);
gmap_for_each_rmap_safe(rmap, rnext, head) {
bits = rmap->raddr & _SHADOW_RMAP_MASK;
raddr = rmap->raddr ^ bits;
......@@ -2076,7 +2076,7 @@ void ptep_notify(struct mm_struct *mm, unsigned long vmaddr,
struct gmap *gmap, *sg, *next;
offset = ((unsigned long) pte) & (255 * sizeof(pte_t));
offset = offset * (4096 / sizeof(pte_t));
offset = offset * (PAGE_SIZE / sizeof(pte_t));
rcu_read_lock();
list_for_each_entry_rcu(gmap, &mm->context.gmap_list, list) {
spin_lock(&gmap->guest_table_lock);
......
......@@ -84,7 +84,7 @@ void __init paging_init(void)
psw_t psw;
init_mm.pgd = swapper_pg_dir;
if (VMALLOC_END > (1UL << 42)) {
if (VMALLOC_END > _REGION2_SIZE) {
asce_bits = _ASCE_TYPE_REGION2 | _ASCE_TABLE_LENGTH;
pgd_type = _REGION2_ENTRY_EMPTY;
} else {
......@@ -93,8 +93,7 @@ void __init paging_init(void)
}
init_mm.context.asce = (__pa(init_mm.pgd) & PAGE_MASK) | asce_bits;
S390_lowcore.kernel_asce = init_mm.context.asce;
clear_table((unsigned long *) init_mm.pgd, pgd_type,
sizeof(unsigned long)*2048);
crst_table_init((unsigned long *) init_mm.pgd, pgd_type);
vmem_map_init();
/* enable virtual mapping in kernel mode */
......
......@@ -83,7 +83,7 @@ int crst_table_upgrade(struct mm_struct *mm, unsigned long end)
int rc, notify;
/* upgrade should only happen from 3 to 4, 3 to 5, or 4 to 5 levels */
BUG_ON(mm->context.asce_limit < (1UL << 42));
BUG_ON(mm->context.asce_limit < _REGION2_SIZE);
if (end >= TASK_SIZE_MAX)
return -ENOMEM;
rc = 0;
......@@ -96,11 +96,11 @@ int crst_table_upgrade(struct mm_struct *mm, unsigned long end)
}
spin_lock_bh(&mm->page_table_lock);
pgd = (unsigned long *) mm->pgd;
if (mm->context.asce_limit == (1UL << 42)) {
if (mm->context.asce_limit == _REGION2_SIZE) {
crst_table_init(table, _REGION2_ENTRY_EMPTY);
p4d_populate(mm, (p4d_t *) table, (pud_t *) pgd);
mm->pgd = (pgd_t *) table;
mm->context.asce_limit = 1UL << 53;
mm->context.asce_limit = _REGION1_SIZE;
mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
_ASCE_USER_BITS | _ASCE_TYPE_REGION2;
} else {
......@@ -124,7 +124,7 @@ void crst_table_downgrade(struct mm_struct *mm)
pgd_t *pgd;
/* downgrade should only happen from 3 to 2 levels (compat only) */
BUG_ON(mm->context.asce_limit != (1UL << 42));
BUG_ON(mm->context.asce_limit != _REGION2_SIZE);
if (current->active_mm == mm) {
clear_user_asce();
......@@ -133,7 +133,7 @@ void crst_table_downgrade(struct mm_struct *mm)
pgd = mm->pgd;
mm->pgd = (pgd_t *) (pgd_val(*pgd) & _REGION_ENTRY_ORIGIN);
mm->context.asce_limit = 1UL << 31;
mm->context.asce_limit = _REGION3_SIZE;
mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH |
_ASCE_USER_BITS | _ASCE_TYPE_SEGMENT;
crst_table_free(mm, (unsigned long *) pgd);
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册