/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_SH_PAGE_H #define __ASM_SH_PAGE_H /* * Copyright (C) 1999 Niibe Yutaka */ #include <linux/const.h> /* PAGE_SHIFT determines the page size */ #if defined(CONFIG_PAGE_SIZE_4KB) # define PAGE_SHIFT 12 #elif defined(CONFIG_PAGE_SIZE_8KB) # define PAGE_SHIFT 13 #elif defined(CONFIG_PAGE_SIZE_16KB) # define PAGE_SHIFT 14 #elif defined(CONFIG_PAGE_SIZE_64KB) # define PAGE_SHIFT 16 #else # error "Bogus kernel page size?" #endif #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) #define PTE_MASK PAGE_MASK #if defined(CONFIG_HUGETLB_PAGE_SIZE_64K) #define HPAGE_SHIFT 16 #elif defined(CONFIG_HUGETLB_PAGE_SIZE_256K) #define HPAGE_SHIFT 18 #elif defined(CONFIG_HUGETLB_PAGE_SIZE_1MB) #define HPAGE_SHIFT 20 #elif defined(CONFIG_HUGETLB_PAGE_SIZE_4MB) #define HPAGE_SHIFT 22 #elif defined(CONFIG_HUGETLB_PAGE_SIZE_64MB) #define HPAGE_SHIFT 26 #elif defined(CONFIG_HUGETLB_PAGE_SIZE_512MB) #define HPAGE_SHIFT 29 #endif #ifdef CONFIG_HUGETLB_PAGE #define HPAGE_SIZE (1UL << HPAGE_SHIFT) #define HPAGE_MASK (~(HPAGE_SIZE-1)) #define HUGETLB_PAGE_ORDER (HPAGE_SHIFT-PAGE_SHIFT) #endif #ifndef __ASSEMBLY__ #include <asm/uncached.h> extern unsigned long shm_align_mask; extern unsigned long max_low_pfn, min_low_pfn; extern unsigned long memory_start, memory_end, memory_limit; static inline unsigned long pages_do_alias(unsigned long addr1, unsigned long addr2) { return (addr1 ^ addr2) & shm_align_mask; } #define clear_page(page) memset((void *)(page), 0, PAGE_SIZE) extern void copy_page(void *to, void *from); #define copy_user_page(to, from, vaddr, pg) __copy_user(to, from, PAGE_SIZE) struct page; struct vm_area_struct; extern void copy_user_highpage(struct page *to, struct page *from, unsigned long vaddr, struct vm_area_struct *vma); #define __HAVE_ARCH_COPY_USER_HIGHPAGE extern void clear_user_highpage(struct page *page, unsigned long vaddr); #define clear_user_highpage clear_user_highpage /* * These are used to make use of C type-checking.. */ #ifdef CONFIG_X2TLB typedef struct { unsigned long pte_low, pte_high; } pte_t; typedef struct { unsigned long long pgprot; } pgprot_t; typedef struct { unsigned long long pgd; } pgd_t; #define pte_val(x) \ ((x).pte_low | ((unsigned long long)(x).pte_high << 32)) #define __pte(x) \ ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; }) #elif defined(CONFIG_SUPERH32) typedef struct { unsigned long pte_low; } pte_t; typedef struct { unsigned long pgprot; } pgprot_t; typedef struct { unsigned long pgd; } pgd_t; #define pte_val(x) ((x).pte_low) #define __pte(x) ((pte_t) { (x) } ) #else typedef struct { unsigned long long pte_low; } pte_t; typedef struct { unsigned long long pgprot; } pgprot_t; typedef struct { unsigned long pgd; } pgd_t; #define pte_val(x) ((x).pte_low) #define __pte(x) ((pte_t) { (x) } ) #endif #define pgd_val(x) ((x).pgd) #define pgprot_val(x) ((x).pgprot) #define __pgd(x) ((pgd_t) { (x) } ) #define __pgprot(x) ((pgprot_t) { (x) } ) typedef struct page *pgtable_t; #define pte_pgprot(x) __pgprot(pte_val(x) & PTE_FLAGS_MASK) #endif /* !__ASSEMBLY__ */ /* * __MEMORY_START and SIZE are the physical addresses and size of RAM. */ #define __MEMORY_START CONFIG_MEMORY_START #define __MEMORY_SIZE CONFIG_MEMORY_SIZE /* * PHYSICAL_OFFSET is the offset in physical memory where the base * of the kernel is loaded. */ #ifdef CONFIG_PHYSICAL_START #define PHYSICAL_OFFSET (CONFIG_PHYSICAL_START - __MEMORY_START) #else #define PHYSICAL_OFFSET 0 #endif /* * PAGE_OFFSET is the virtual address of the start of kernel address * space. */ #define PAGE_OFFSET CONFIG_PAGE_OFFSET /* * Virtual to physical RAM address translation. * * In 29 bit mode, the physical offset of RAM from address 0 is visible in * the kernel virtual address space, and thus we don't have to take * this into account when translating. However in 32 bit mode this offset * is not visible (it is part of the PMB mapping) and so needs to be * added or subtracted as required. */ #ifdef CONFIG_PMB #define ___pa(x) ((x)-PAGE_OFFSET+__MEMORY_START) #define ___va(x) ((x)+PAGE_OFFSET-__MEMORY_START) #else #define ___pa(x) ((x)-PAGE_OFFSET) #define ___va(x) ((x)+PAGE_OFFSET) #endif #ifndef __ASSEMBLY__ #define __pa(x) ___pa((unsigned long)x) #define __va(x) (void *)___va((unsigned long)x) #endif /* !__ASSEMBLY__ */ #ifdef CONFIG_UNCACHED_MAPPING #if defined(CONFIG_29BIT) #define UNCAC_ADDR(addr) P2SEGADDR(addr) #define CAC_ADDR(addr) P1SEGADDR(addr) #else #define UNCAC_ADDR(addr) ((addr) - PAGE_OFFSET + uncached_start) #define CAC_ADDR(addr) ((addr) - uncached_start + PAGE_OFFSET) #endif #else #define UNCAC_ADDR(addr) ((addr)) #define CAC_ADDR(addr) ((addr)) #endif #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) /* * PFN = physical frame number (ie PFN 0 == physical address 0) * PFN_START is the PFN of the first page of RAM. By defining this we * don't have struct page entries for the portion of address space * between physical address 0 and the start of RAM. */ #define PFN_START (__MEMORY_START >> PAGE_SHIFT) #define ARCH_PFN_OFFSET (PFN_START) #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) #ifdef CONFIG_FLATMEM #define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_low_pfn) #endif #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) #define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) #include <asm-generic/memory_model.h> #include <asm-generic/getorder.h> /* * Some drivers need to perform DMA into kmalloc'ed buffers * and so we have to increase the kmalloc minalign for this. */ #define ARCH_DMA_MINALIGN L1_CACHE_BYTES #ifdef CONFIG_SUPERH64 /* * While BYTES_PER_WORD == 4 on the current sh64 ABI, GCC will still * happily generate {ld/st}.q pairs, requiring us to have 8-byte * alignment to avoid traps. The kmalloc alignment is guaranteed by * virtue of L1_CACHE_BYTES, requiring this to only be special cased * for slab caches. */ #define ARCH_SLAB_MINALIGN 8 #endif #endif /* __ASM_SH_PAGE_H */
Name | Type | Size | Permission | Actions |
---|---|---|---|---|
Kbuild | File | 467 B | 0644 |
|
adc.h | File | 253 B | 0644 |
|
addrspace.h | File | 2.03 KB | 0644 |
|
alignment.h | File | 654 B | 0644 |
|
asm-offsets.h | File | 35 B | 0644 |
|
atomic-grb.h | File | 2.6 KB | 0644 |
|
atomic-irq.h | File | 1.63 KB | 0644 |
|
atomic-llsc.h | File | 2.12 KB | 0644 |
|
atomic.h | File | 1.78 KB | 0644 |
|
barrier.h | File | 1.52 KB | 0644 |
|
bitops-cas.h | File | 1.73 KB | 0644 |
|
bitops-grb.h | File | 6.21 KB | 0644 |
|
bitops-llsc.h | File | 2.79 KB | 0644 |
|
bitops-op32.h | File | 3.78 KB | 0644 |
|
bitops.h | File | 2.38 KB | 0644 |
|
bl_bit.h | File | 216 B | 0644 |
|
bl_bit_32.h | File | 639 B | 0644 |
|
bl_bit_64.h | File | 979 B | 0644 |
|
bug.h | File | 2.77 KB | 0644 |
|
bugs.h | File | 1.38 KB | 0644 |
|
cache.h | File | 1.2 KB | 0644 |
|
cache_insns.h | File | 242 B | 0644 |
|
cache_insns_32.h | File | 642 B | 0644 |
|
cache_insns_64.h | File | 839 B | 0644 |
|
cacheflush.h | File | 3.58 KB | 0644 |
|
checksum.h | File | 140 B | 0644 |
|
checksum_32.h | File | 5.21 KB | 0644 |
|
clock.h | File | 436 B | 0644 |
|
cmpxchg-cas.h | File | 549 B | 0644 |
|
cmpxchg-grb.h | File | 2.8 KB | 0644 |
|
cmpxchg-irq.h | File | 1.04 KB | 0644 |
|
cmpxchg-llsc.h | File | 1.06 KB | 0644 |
|
cmpxchg-xchg.h | File | 1.33 KB | 0644 |
|
cmpxchg.h | File | 1.77 KB | 0644 |
|
device.h | File | 450 B | 0644 |
|
dma-mapping.h | File | 694 B | 0644 |
|
dma-register.h | File | 1.8 KB | 0644 |
|
dma.h | File | 3.74 KB | 0644 |
|
dmabrg.h | File | 536 B | 0644 |
|
dwarf.h | File | 9.8 KB | 0644 |
|
elf.h | File | 7.28 KB | 0644 |
|
entry-macros.S | File | 1.85 KB | 0644 |
|
extable.h | File | 227 B | 0644 |
|
fb.h | File | 375 B | 0644 |
|
fixmap.h | File | 2.92 KB | 0644 |
|
flat.h | File | 1.23 KB | 0644 |
|
fpu.h | File | 1.77 KB | 0644 |
|
freq.h | File | 472 B | 0644 |
|
ftrace.h | File | 1.11 KB | 0644 |
|
futex-cas.h | File | 728 B | 0644 |
|
futex-irq.h | File | 482 B | 0644 |
|
futex-llsc.h | File | 870 B | 0644 |
|
futex.h | File | 1.5 KB | 0644 |
|
gpio.h | File | 1017 B | 0644 |
|
hardirq.h | File | 440 B | 0644 |
|
hd64461.h | File | 11.79 KB | 0644 |
|
heartbeat.h | File | 383 B | 0644 |
|
hugetlb.h | File | 1.96 KB | 0644 |
|
hw_breakpoint.h | File | 1.88 KB | 0644 |
|
hw_irq.h | File | 915 B | 0644 |
|
i2c-sh7760.h | File | 406 B | 0644 |
|
io.h | File | 11.33 KB | 0644 |
|
io_generic.h | File | 661 B | 0644 |
|
io_noioport.h | File | 1.09 KB | 0644 |
|
io_trapped.h | File | 1.44 KB | 0644 |
|
irq.h | File | 1.68 KB | 0644 |
|
irqflags.h | File | 226 B | 0644 |
|
kdebug.h | File | 406 B | 0644 |
|
kexec.h | File | 2.61 KB | 0644 |
|
kgdb.h | File | 851 B | 0644 |
|
kmap_types.h | File | 265 B | 0644 |
|
kprobes.h | File | 1.51 KB | 0644 |
|
linkage.h | File | 154 B | 0644 |
|
machvec.h | File | 939 B | 0644 |
|
mmu.h | File | 2.18 KB | 0644 |
|
mmu_context.h | File | 4.44 KB | 0644 |
|
mmu_context_32.h | File | 1.28 KB | 0644 |
|
mmu_context_64.h | File | 1.97 KB | 0644 |
|
mmzone.h | File | 1.1 KB | 0644 |
|
module.h | File | 1005 B | 0644 |
|
page.h | File | 6.06 KB | 0644 |
|
pci.h | File | 3.19 KB | 0644 |
|
perf_event.h | File | 797 B | 0644 |
|
pgalloc.h | File | 1.86 KB | 0644 |
|
pgtable-2level.h | File | 598 B | 0644 |
|
pgtable-3level.h | File | 1.54 KB | 0644 |
|
pgtable.h | File | 4 KB | 0644 |
|
pgtable_32.h | File | 16.37 KB | 0644 |
|
pgtable_64.h | File | 11.32 KB | 0644 |
|
posix_types.h | File | 146 B | 0644 |
|
processor.h | File | 4.41 KB | 0644 |
|
processor_32.h | File | 4.67 KB | 0644 |
|
processor_64.h | File | 5.54 KB | 0644 |
|
ptrace.h | File | 3.39 KB | 0644 |
|
ptrace_32.h | File | 307 B | 0644 |
|
ptrace_64.h | File | 312 B | 0644 |
|
push-switch.h | File | 755 B | 0644 |
|
reboot.h | File | 472 B | 0644 |
|
romimage-macros.h | File | 1.1 KB | 0644 |
|
rtc.h | File | 383 B | 0644 |
|
seccomp.h | File | 280 B | 0644 |
|
sections.h | File | 307 B | 0644 |
|
segment.h | File | 879 B | 0644 |
|
setup.h | File | 725 B | 0644 |
|
sfp-machine.h | File | 3.43 KB | 0644 |
|
sh7760fb.h | File | 5.61 KB | 0644 |
|
sh_bios.h | File | 743 B | 0644 |
|
shmparam.h | File | 629 B | 0644 |
|
siu.h | File | 539 B | 0644 |
|
smc37c93x.h | File | 5.56 KB | 0644 |
|
smp-ops.h | File | 1012 B | 0644 |
|
smp.h | File | 1.83 KB | 0644 |
|
sparsemem.h | File | 443 B | 0644 |
|
spi.h | File | 265 B | 0644 |
|
spinlock-cas.h | File | 2.09 KB | 0644 |
|
spinlock-llsc.h | File | 4.13 KB | 0644 |
|
spinlock.h | File | 578 B | 0644 |
|
spinlock_types.h | File | 463 B | 0644 |
|
sram.h | File | 670 B | 0644 |
|
stackprotector.h | File | 711 B | 0644 |
|
stacktrace.h | File | 606 B | 0644 |
|
string.h | File | 131 B | 0644 |
|
string_32.h | File | 2.66 KB | 0644 |
|
string_64.h | File | 499 B | 0644 |
|
suspend.h | File | 2.52 KB | 0644 |
|
switch_to.h | File | 492 B | 0644 |
|
switch_to_32.h | File | 3.55 KB | 0644 |
|
switch_to_64.h | File | 968 B | 0644 |
|
syscall.h | File | 267 B | 0644 |
|
syscall_32.h | File | 2.42 KB | 0644 |
|
syscall_64.h | File | 1.79 KB | 0644 |
|
syscalls.h | File | 564 B | 0644 |
|
syscalls_32.h | File | 1022 B | 0644 |
|
syscalls_64.h | File | 441 B | 0644 |
|
thread_info.h | File | 5.32 KB | 0644 |
|
timex.h | File | 637 B | 0644 |
|
tlb.h | File | 4.12 KB | 0644 |
|
tlb_64.h | File | 2.08 KB | 0644 |
|
tlbflush.h | File | 1.77 KB | 0644 |
|
topology.h | File | 645 B | 0644 |
|
traps.h | File | 487 B | 0644 |
|
traps_32.h | File | 1.31 KB | 0644 |
|
traps_64.h | File | 851 B | 0644 |
|
types.h | File | 411 B | 0644 |
|
uaccess.h | File | 4.83 KB | 0644 |
|
uaccess_32.h | File | 3.77 KB | 0644 |
|
uaccess_64.h | File | 2.2 KB | 0644 |
|
unaligned-sh4a.h | File | 4.51 KB | 0644 |
|
unaligned.h | File | 359 B | 0644 |
|
uncached.h | File | 1.34 KB | 0644 |
|
unistd.h | File | 952 B | 0644 |
|
unwinder.h | File | 856 B | 0644 |
|
user.h | File | 2.52 KB | 0644 |
|
vga.h | File | 98 B | 0644 |
|
vmlinux.lds.h | File | 558 B | 0644 |
|
watchdog.h | File | 4.14 KB | 0644 |
|
word-at-a-time.h | File | 1.29 KB | 0644 |
|