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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _SPARC64_PAGE_H
#define _SPARC64_PAGE_H

#include <linux/const.h>

#define PAGE_SHIFT   13

#define PAGE_SIZE    (_AC(1,UL) << PAGE_SHIFT)
#define PAGE_MASK    (~(PAGE_SIZE-1))

/* Flushing for D-cache alias handling is only needed if
 * the page size is smaller than 16K.
 */
#if PAGE_SHIFT < 14
#define DCACHE_ALIASING_POSSIBLE
#endif

#define HPAGE_SHIFT		23
#define REAL_HPAGE_SHIFT	22
#define HPAGE_16GB_SHIFT	34
#define HPAGE_2GB_SHIFT		31
#define HPAGE_256MB_SHIFT	28
#define HPAGE_64K_SHIFT		16
#define REAL_HPAGE_SIZE		(_AC(1,UL) << REAL_HPAGE_SHIFT)

#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
#define HPAGE_SIZE		(_AC(1,UL) << HPAGE_SHIFT)
#define HPAGE_MASK		(~(HPAGE_SIZE - 1UL))
#define HUGETLB_PAGE_ORDER	(HPAGE_SHIFT - PAGE_SHIFT)
#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
#define REAL_HPAGE_PER_HPAGE	(_AC(1,UL) << (HPAGE_SHIFT - REAL_HPAGE_SHIFT))
#define HUGE_MAX_HSTATE		5
#endif

#ifndef __ASSEMBLY__

#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
struct pt_regs;
void hugetlb_setup(struct pt_regs *regs);
#endif

#define WANT_PAGE_VIRTUAL

void _clear_page(void *page);
#define clear_page(X)	_clear_page((void *)(X))
struct page;
void clear_user_page(void *addr, unsigned long vaddr, struct page *page);
#define copy_page(X,Y)	memcpy((void *)(X), (void *)(Y), PAGE_SIZE)
void copy_user_page(void *to, void *from, unsigned long vaddr, struct page *topage);

/* Unlike sparc32, sparc64's parameter passing API is more
 * sane in that structures which as small enough are passed
 * in registers instead of on the stack.  Thus, setting
 * STRICT_MM_TYPECHECKS does not generate worse code so
 * let's enable it to get the type checking.
 */

#define STRICT_MM_TYPECHECKS

#ifdef STRICT_MM_TYPECHECKS
/* These are used to make use of C type-checking.. */
typedef struct { unsigned long pte; } pte_t;
typedef struct { unsigned long iopte; } iopte_t;
typedef struct { unsigned long pmd; } pmd_t;
typedef struct { unsigned long pud; } pud_t;
typedef struct { unsigned long pgd; } pgd_t;
typedef struct { unsigned long pgprot; } pgprot_t;

#define pte_val(x)	((x).pte)
#define iopte_val(x)	((x).iopte)
#define pmd_val(x)      ((x).pmd)
#define pud_val(x)      ((x).pud)
#define pgd_val(x)	((x).pgd)
#define pgprot_val(x)	((x).pgprot)

#define __pte(x)	((pte_t) { (x) } )
#define __iopte(x)	((iopte_t) { (x) } )
#define __pmd(x)        ((pmd_t) { (x) } )
#define __pud(x)        ((pud_t) { (x) } )
#define __pgd(x)	((pgd_t) { (x) } )
#define __pgprot(x)	((pgprot_t) { (x) } )

#else
/* .. while these make it easier on the compiler */
typedef unsigned long pte_t;
typedef unsigned long iopte_t;
typedef unsigned long pmd_t;
typedef unsigned long pud_t;
typedef unsigned long pgd_t;
typedef unsigned long pgprot_t;

#define pte_val(x)	(x)
#define iopte_val(x)	(x)
#define pmd_val(x)      (x)
#define pud_val(x)      (x)
#define pgd_val(x)	(x)
#define pgprot_val(x)	(x)

#define __pte(x)	(x)
#define __iopte(x)	(x)
#define __pmd(x)        (x)
#define __pud(x)        (x)
#define __pgd(x)	(x)
#define __pgprot(x)	(x)

#endif /* (STRICT_MM_TYPECHECKS) */

typedef pte_t *pgtable_t;

extern unsigned long sparc64_va_hole_top;
extern unsigned long sparc64_va_hole_bottom;

/* The next two defines specify the actual exclusion region we
 * enforce, wherein we use a 4GB red zone on each side of the VA hole.
 */
#define VA_EXCLUDE_START (sparc64_va_hole_bottom - (1UL << 32UL))
#define VA_EXCLUDE_END   (sparc64_va_hole_top + (1UL << 32UL))

#define TASK_UNMAPPED_BASE	(test_thread_flag(TIF_32BIT) ? \
				 _AC(0x0000000070000000,UL) : \
				 VA_EXCLUDE_END)

#include <asm-generic/memory_model.h>

extern unsigned long PAGE_OFFSET;

#endif /* !(__ASSEMBLY__) */

/* The maximum number of physical memory address bits we support.  The
 * largest value we can support is whatever "KPGD_SHIFT + KPTE_BITS"
 * evaluates to.
 */
#define MAX_PHYS_ADDRESS_BITS	53

#define ILOG2_4MB		22
#define ILOG2_256MB		28

#ifndef __ASSEMBLY__

#define __pa(x)			((unsigned long)(x) - PAGE_OFFSET)
#define __va(x)			((void *)((unsigned long) (x) + PAGE_OFFSET))

#define pfn_to_kaddr(pfn)	__va((pfn) << PAGE_SHIFT)

#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr)>>PAGE_SHIFT)

#define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)

#define virt_to_phys __pa
#define phys_to_virt __va

#endif /* !(__ASSEMBLY__) */

#define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)

#include <asm-generic/getorder.h>

#endif /* _SPARC64_PAGE_H */

Filemanager

Name Type Size Permission Actions
Kbuild File 491 B 0644
agp.h File 434 B 0644
apb.h File 1.06 KB 0644
asm-offsets.h File 35 B 0644
asm-prototypes.h File 727 B 0644
asm.h File 1.08 KB 0644
asmmacro.h File 1.16 KB 0644
atomic.h File 219 B 0644
atomic_32.h File 2.26 KB 0644
atomic_64.h File 3.34 KB 0644
auxio.h File 310 B 0644
auxio_32.h File 2.55 KB 0644
auxio_64.h File 3.18 KB 0644
backoff.h File 2.7 KB 0644
barrier.h File 223 B 0644
barrier_32.h File 160 B 0644
barrier_64.h File 1.96 KB 0644
bbc.h File 9.76 KB 0644
bitext.h File 631 B 0644
bitops.h File 219 B 0644
bitops_32.h File 2.79 KB 0644
bitops_64.h File 1.64 KB 0644
btext.h File 145 B 0644
bug.h File 588 B 0644
bugs.h File 404 B 0644
cache.h File 649 B 0644
cacheflush.h File 373 B 0644
cacheflush_32.h File 1.97 KB 0644
cacheflush_64.h File 2.56 KB 0644
cachetlb_32.h File 882 B 0644
chafsr.h File 9.48 KB 0644
checksum.h File 227 B 0644
checksum_32.h File 6.81 KB 0644
checksum_64.h File 4.4 KB 0644
chmctrl.h File 7.91 KB 0644
clock.h File 231 B 0644
clocksource.h File 407 B 0644
cmpxchg.h File 223 B 0644
cmpxchg_32.h File 2.4 KB 0644
cmpxchg_64.h File 5.13 KB 0644
compat.h File 6.45 KB 0644
compat_signal.h File 565 B 0644
contregs.h File 1.9 KB 0644
cpu_type.h File 579 B 0644
cpudata.h File 378 B 0644
cpudata_32.h File 729 B 0644
cpudata_64.h File 1.13 KB 0644
current.h File 991 B 0644
dcr.h File 728 B 0644
dcu.h File 1.48 KB 0644
delay.h File 215 B 0644
delay_32.h File 907 B 0644
delay_64.h File 403 B 0644
device.h File 565 B 0644
dma-mapping.h File 632 B 0644
dma.h File 6.6 KB 0644
ebus_dma.h File 1.07 KB 0644
ecc.h File 4.34 KB 0644
eeprom.h File 254 B 0644
elf.h File 207 B 0644
elf_32.h File 3.19 KB 0644
elf_64.h File 6.47 KB 0644
estate.h File 2.23 KB 0644
extable_64.h File 727 B 0644
fb.h File 680 B 0644
fbio.h File 2.26 KB 0644
fhc.h File 4.43 KB 0644
floppy.h File 219 B 0644
floppy_32.h File 9.74 KB 0644
floppy_64.h File 18.83 KB 0644
fpumacro.h File 710 B 0644
ftrace.h File 800 B 0644
futex.h File 215 B 0644
futex_32.h File 82 B 0644
futex_64.h File 2.15 KB 0644
hardirq.h File 223 B 0644
hardirq_32.h File 334 B 0644
hardirq_64.h File 417 B 0644
head.h File 211 B 0644
head_32.h File 2.56 KB 0644
head_64.h File 2.13 KB 0644
hibernate.h File 421 B 0644
highmem.h File 2.02 KB 0644
hugetlb.h File 2.09 KB 0644
hvtramp.h File 782 B 0644
hw_irq.h File 88 B 0644
hypervisor.h File 110.71 KB 0644
ide.h File 2.19 KB 0644
idprom.h File 656 B 0644
intr_queue.h File 794 B 0644
io-unit.h File 2.41 KB 0644
io.h File 620 B 0644
io_32.h File 3.51 KB 0644
io_64.h File 10.66 KB 0644
ioctls.h File 358 B 0644
iommu.h File 215 B 0644
iommu_32.h File 5.73 KB 0644
iommu_64.h File 2.43 KB 0644
irq.h File 207 B 0644
irq_32.h File 526 B 0644
irq_64.h File 3.06 KB 0644
irqflags.h File 227 B 0644
irqflags_32.h File 1.03 KB 0644
irqflags_64.h File 1.91 KB 0644
jump_label.h File 1.01 KB 0644
kdebug.h File 219 B 0644
kdebug_32.h File 1.99 KB 0644
kdebug_64.h File 393 B 0644
kgdb.h File 1014 B 0644
kmap_types.h File 233 B 0644
kprobes.h File 1.41 KB 0644
ldc.h File 4.37 KB 0644
leon.h File 7.37 KB 0644
leon_amba.h File 8.09 KB 0644
leon_pci.h File 512 B 0644
lsu.h File 1.04 KB 0644
machines.h File 1.5 KB 0644
mbus.h File 2.93 KB 0644
mc146818rtc.h File 298 B 0644
mc146818rtc_32.h File 699 B 0644
mc146818rtc_64.h File 689 B 0644
mdesc.h File 2.99 KB 0644
memctrl.h File 311 B 0644
mman.h File 304 B 0644
mmu.h File 207 B 0644
mmu_32.h File 209 B 0644
mmu_64.h File 3.14 KB 0644
mmu_context.h File 239 B 0644
mmu_context_32.h File 1.07 KB 0644
mmu_context_64.h File 4.15 KB 0644
mmzone.h File 393 B 0644
msi.h File 774 B 0644
mxcc.h File 4.33 KB 0644
nmi.h File 354 B 0644
ns87303.h File 3.22 KB 0644
obio.h File 6.26 KB 0644
openprom.h File 7.3 KB 0644
oplib.h File 215 B 0644
oplib_32.h File 5.92 KB 0644
oplib_64.h File 8.12 KB 0644
page.h File 274 B 0644
page_32.h File 3.91 KB 0644
page_64.h File 4.49 KB 0644
parport.h File 5.68 KB 0644
pbm.h File 1.47 KB 0644
pci.h File 207 B 0644
pci_32.h File 1.09 KB 0644
pci_64.h File 1.49 KB 0644
pcic.h File 5.77 KB 0644
pcr.h File 1.85 KB 0644
percpu.h File 219 B 0644
percpu_32.h File 168 B 0644
percpu_64.h File 515 B 0644
perf_event.h File 802 B 0644
pgalloc.h File 223 B 0644
pgalloc_32.h File 1.91 KB 0644
pgalloc_64.h File 2.85 KB 0644
pgtable.h File 223 B 0644
pgtable_32.h File 11.35 KB 0644
pgtable_64.h File 30.71 KB 0644
pgtsrmmu.h File 6.05 KB 0644
pil.h File 1.08 KB 0644
processor.h File 231 B 0644
processor_32.h File 3.13 KB 0644
processor_64.h File 7.58 KB 0644
prom.h File 2.02 KB 0644
psr.h File 1.38 KB 0644
ptrace.h File 4.19 KB 0644
qrwlock.h File 205 B 0644
qspinlock.h File 215 B 0644
ross.h File 5.52 KB 0644
sbi.h File 3.34 KB 0644
scratchpad.h File 547 B 0644
seccomp.h File 225 B 0644
sections.h File 289 B 0644
setup.h File 1.52 KB 0644
sfafsr.h File 3.14 KB 0644
sfp-machine.h File 239 B 0644
sfp-machine_32.h File 6.79 KB 0644
sfp-machine_64.h File 3.1 KB 0644
shmparam.h File 227 B 0644
shmparam_32.h File 253 B 0644
shmparam_64.h File 306 B 0644
sigcontext.h File 2.55 KB 0644
signal.h File 835 B 0644
smp.h File 207 B 0644
smp_32.h File 3.29 KB 0644
smp_64.h File 1.84 KB 0644
sparsemem.h File 349 B 0644
spinlock.h File 227 B 0644
spinlock_32.h File 4.22 KB 0644
spinlock_64.h File 409 B 0644
spinlock_types.h File 549 B 0644
spitfire.h File 9.73 KB 0644
stacktrace.h File 166 B 0644
starfire.h File 418 B 0644
string.h File 1.13 KB 0644
string_32.h File 405 B 0644
string_64.h File 505 B 0644
sunbpp.h File 3.27 KB 0644
swift.h File 3.07 KB 0644
switch_to.h File 231 B 0644
switch_to_32.h File 3.53 KB 0644
switch_to_64.h File 2.58 KB 0644
syscall.h File 3.41 KB 0644
syscalls.h File 307 B 0644
termbits.h File 198 B 0644
termios.h File 4.94 KB 0644
thread_info.h File 239 B 0644
thread_info_32.h File 3.66 KB 0644
thread_info_64.h File 7.84 KB 0644
timer.h File 215 B 0644
timer_32.h File 1.18 KB 0644
timer_64.h File 2.37 KB 0644
timex.h File 215 B 0644
timex_32.h File 266 B 0644
timex_64.h File 423 B 0644
tlb.h File 207 B 0644
tlb_32.h File 520 B 0644
tlb_64.h File 913 B 0644
tlbflush.h File 227 B 0644
tlbflush_32.h File 621 B 0644
tlbflush_64.h File 1.73 KB 0644
topology.h File 227 B 0644
topology_32.h File 170 B 0644
topology_64.h File 1.51 KB 0644
trap_block.h File 6.51 KB 0644
traps.h File 577 B 0644
tsb.h File 12.17 KB 0644
tsunami.h File 1.85 KB 0644
ttable.h File 20.08 KB 0644
turbosparc.h File 3.78 KB 0644
uaccess.h File 363 B 0644
uaccess_32.h File 8.31 KB 0644
uaccess_64.h File 6.05 KB 0644
unaligned.h File 339 B 0644
unistd.h File 1.37 KB 0644
upa.h File 3.72 KB 0644
uprobes.h File 1.86 KB 0644
user.h File 102 B 0644
vaddrs.h File 2.02 KB 0644
vdso.h File 662 B 0644
vga.h File 964 B 0644
viking.h File 8.14 KB 0644
vio.h File 11.81 KB 0644
visasm.h File 1.51 KB 0644
vvar.h File 1.52 KB 0644
winmacro.h File 4.66 KB 0644
xor.h File 207 B 0644
xor_32.h File 7.31 KB 0644
xor_64.h File 2.5 KB 0644