/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 1994 - 1999, 2000, 03 Ralf Baechle * Copyright (C) 1999, 2000 Silicon Graphics, Inc. */ #ifndef _ASM_PAGE_H #define _ASM_PAGE_H #include <spaces.h> #include <linux/const.h> #include <linux/kernel.h> #include <asm/mipsregs.h> /* * PAGE_SHIFT determines the page size */ #ifdef CONFIG_PAGE_SIZE_4KB #define PAGE_SHIFT 12 #endif #ifdef CONFIG_PAGE_SIZE_8KB #define PAGE_SHIFT 13 #endif #ifdef CONFIG_PAGE_SIZE_16KB #define PAGE_SHIFT 14 #endif #ifdef CONFIG_PAGE_SIZE_32KB #define PAGE_SHIFT 15 #endif #ifdef CONFIG_PAGE_SIZE_64KB #define PAGE_SHIFT 16 #endif #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) #define PAGE_MASK (~((1 << PAGE_SHIFT) - 1)) /* * This is used for calculating the real page sizes * for FTLB or VTLB + FTLB configurations. */ static inline unsigned int page_size_ftlb(unsigned int mmuextdef) { switch (mmuextdef) { case MIPS_CONF4_MMUEXTDEF_FTLBSIZEEXT: if (PAGE_SIZE == (1 << 30)) return 5; if (PAGE_SIZE == (1llu << 32)) return 6; if (PAGE_SIZE > (256 << 10)) return 7; /* reserved */ /* fall through */ case MIPS_CONF4_MMUEXTDEF_VTLBSIZEEXT: return (PAGE_SHIFT - 10) / 2; default: panic("Invalid FTLB configuration with Conf4_mmuextdef=%d value\n", mmuextdef >> 14); } } #ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT #define HPAGE_SHIFT (PAGE_SHIFT + PAGE_SHIFT - 3) #define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT) #define HPAGE_MASK (~(HPAGE_SIZE - 1)) #define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) #else /* !CONFIG_MIPS_HUGE_TLB_SUPPORT */ #define HPAGE_SHIFT ({BUILD_BUG(); 0; }) #define HPAGE_SIZE ({BUILD_BUG(); 0; }) #define HPAGE_MASK ({BUILD_BUG(); 0; }) #define HUGETLB_PAGE_ORDER ({BUILD_BUG(); 0; }) #endif /* CONFIG_MIPS_HUGE_TLB_SUPPORT */ #include <linux/pfn.h> extern void build_clear_page(void); extern void build_copy_page(void); /* * It's normally defined only for FLATMEM config but it's * used in our early mem init code for all memory models. * So always define it. */ #define ARCH_PFN_OFFSET PFN_UP(PHYS_OFFSET) extern void clear_page(void * page); extern void copy_page(void * to, void * from); extern unsigned long shm_align_mask; static inline unsigned long pages_do_alias(unsigned long addr1, unsigned long addr2) { return (addr1 ^ addr2) & shm_align_mask; } struct page; static inline void clear_user_page(void *addr, unsigned long vaddr, struct page *page) { extern void (*flush_data_cache_page)(unsigned long addr); clear_page(addr); if (pages_do_alias((unsigned long) addr, vaddr & PAGE_MASK)) flush_data_cache_page((unsigned long)addr); } 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 /* * These are used to make use of C type-checking.. */ #ifdef CONFIG_PHYS_ADDR_T_64BIT #ifdef CONFIG_CPU_MIPS32 typedef struct { unsigned long pte_low, pte_high; } pte_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; }) #else typedef struct { unsigned long long pte; } pte_t; #define pte_val(x) ((x).pte) #define __pte(x) ((pte_t) { (x) } ) #endif #else typedef struct { unsigned long pte; } pte_t; #define pte_val(x) ((x).pte) #define __pte(x) ((pte_t) { (x) } ) #endif typedef struct page *pgtable_t; /* * Right now we don't support 4-level pagetables, so all pud-related * definitions come from <asm-generic/pgtable-nopud.h>. */ /* * Finall the top of the hierarchy, the pgd */ typedef struct { unsigned long pgd; } pgd_t; #define pgd_val(x) ((x).pgd) #define __pgd(x) ((pgd_t) { (x) } ) /* * Manipulate page protection bits */ typedef struct { unsigned long pgprot; } pgprot_t; #define pgprot_val(x) ((x).pgprot) #define __pgprot(x) ((pgprot_t) { (x) } ) /* * On R4000-style MMUs where a TLB entry is mapping a adjacent even / odd * pair of pages we only have a single global bit per pair of pages. When * writing to the TLB make sure we always have the bit set for both pages * or none. This macro is used to access the `buddy' of the pte we're just * working on. */ #define ptep_buddy(x) ((pte_t *)((unsigned long)(x) ^ sizeof(pte_t))) /* * __pa()/__va() should be used only during mem init. */ static inline unsigned long ___pa(unsigned long x) { if (IS_ENABLED(CONFIG_64BIT)) { /* * For MIPS64 the virtual address may either be in one of * the compatibility segements ckseg0 or ckseg1, or it may * be in xkphys. */ return x < CKSEG0 ? XPHYSADDR(x) : CPHYSADDR(x); } if (!IS_ENABLED(CONFIG_EVA)) { /* * We're using the standard MIPS32 legacy memory map, ie. * the address x is going to be in kseg0 or kseg1. We can * handle either case by masking out the desired bits using * CPHYSADDR. */ return CPHYSADDR(x); } /* * EVA is in use so the memory map could be anything, making it not * safe to just mask out bits. */ return x - PAGE_OFFSET + PHYS_OFFSET; } #define __pa(x) ___pa((unsigned long)(x)) #define __va(x) ((void *)((unsigned long)(x) + PAGE_OFFSET - PHYS_OFFSET)) #include <asm/io.h> /* * RELOC_HIDE was originally added by 6007b903dfe5f1d13e0c711ac2894bdd4a61b1ad * (lmo) rsp. 8431fd094d625b94d364fe393076ccef88e6ce18 (kernel.org). The * discussion can be found in lkml posting * <a2ebde260608230500o3407b108hc03debb9da6e62c@mail.gmail.com> which is * archived at http://lists.linuxcoding.com/kernel/2006-q3/msg17360.html * * It is unclear if the misscompilations mentioned in * http://lkml.org/lkml/2010/8/8/138 also affect MIPS so we keep this one * until GCC 3.x has been retired before we can apply * https://patchwork.linux-mips.org/patch/1541/ */ #ifndef __pa_symbol #define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x), 0)) #endif #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) #ifdef CONFIG_FLATMEM static inline int pfn_valid(unsigned long pfn) { /* avoid <linux/mm.h> include hell */ extern unsigned long max_mapnr; unsigned long pfn_offset = ARCH_PFN_OFFSET; return pfn >= pfn_offset && pfn < max_mapnr; } #elif defined(CONFIG_SPARSEMEM) /* pfn_valid is defined in linux/mmzone.h */ #elif defined(CONFIG_NEED_MULTIPLE_NODES) #define pfn_valid(pfn) \ ({ \ unsigned long __pfn = (pfn); \ int __n = pfn_to_nid(__pfn); \ ((__n >= 0) ? (__pfn < NODE_DATA(__n)->node_start_pfn + \ NODE_DATA(__n)->node_spanned_pages) \ : 0); \ }) #endif #define virt_to_pfn(kaddr) PFN_DOWN(virt_to_phys((void *)(kaddr))) #define virt_to_page(kaddr) pfn_to_page(virt_to_pfn(kaddr)) extern int __virt_addr_valid(const volatile void *kaddr); #define virt_addr_valid(kaddr) \ __virt_addr_valid((const volatile void *) (kaddr)) #define VM_DATA_DEFAULT_FLAGS \ (VM_READ | VM_WRITE | \ ((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) #define UNCAC_ADDR(addr) ((addr) - PAGE_OFFSET + UNCAC_BASE) #define CAC_ADDR(addr) ((addr) - UNCAC_BASE + PAGE_OFFSET) #include <asm-generic/memory_model.h> #include <asm-generic/getorder.h> #endif /* _ASM_PAGE_H */
Name | Type | Size | Permission | Actions |
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dec | Folder | 0755 |
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emma | Folder | 0755 |
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fw | Folder | 0755 |
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ip32 | Folder | 0755 |
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lasat | Folder | 0755 |
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mach-ar7 | Folder | 0755 |
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mach-ath25 | Folder | 0755 |
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mach-ath79 | Folder | 0755 |
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mach-au1x00 | Folder | 0755 |
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mach-bcm47xx | Folder | 0755 |
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mach-bcm63xx | Folder | 0755 |
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mach-bmips | Folder | 0755 |
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mach-cavium-octeon | Folder | 0755 |
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mach-cobalt | Folder | 0755 |
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mach-db1x00 | Folder | 0755 |
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mach-dec | Folder | 0755 |
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mach-emma2rh | Folder | 0755 |
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mach-generic | Folder | 0755 |
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mach-ip22 | Folder | 0755 |
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mach-ip27 | Folder | 0755 |
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mach-ip28 | Folder | 0755 |
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mach-ip32 | Folder | 0755 |
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mach-jazz | Folder | 0755 |
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mach-jz4740 | Folder | 0755 |
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mach-lantiq | Folder | 0755 |
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mach-lasat | Folder | 0755 |
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mach-loongson32 | Folder | 0755 |
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mach-loongson64 | Folder | 0755 |
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mach-malta | Folder | 0755 |
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mach-netlogic | Folder | 0755 |
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mach-paravirt | Folder | 0755 |
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mach-pic32 | Folder | 0755 |
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mach-pistachio | Folder | 0755 |
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mach-pmcs-msp71xx | Folder | 0755 |
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mach-pnx833x | Folder | 0755 |
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mach-ralink | Folder | 0755 |
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mach-rc32434 | Folder | 0755 |
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mach-rm | Folder | 0755 |
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mach-sibyte | Folder | 0755 |
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mach-tx39xx | Folder | 0755 |
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mach-tx49xx | Folder | 0755 |
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mach-vr41xx | Folder | 0755 |
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mach-xilfpga | Folder | 0755 |
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mips-boards | Folder | 0755 |
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netlogic | Folder | 0755 |
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octeon | Folder | 0755 |
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pci | Folder | 0755 |
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sgi | Folder | 0755 |
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sibyte | Folder | 0755 |
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sn | Folder | 0755 |
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txx9 | Folder | 0755 |
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vr41xx | Folder | 0755 |
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xtalk | Folder | 0755 |
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Kbuild | File | 577 B | 0644 |
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abi.h | File | 853 B | 0644 |
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addrspace.h | File | 4.1 KB | 0644 |
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amon.h | File | 409 B | 0644 |
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arch_hweight.h | File | 792 B | 0644 |
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asm-eva.h | File | 6.82 KB | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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asm-prototypes.h | File | 197 B | 0644 |
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asm.h | File | 8.47 KB | 0644 |
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asmmacro-32.h | File | 2.47 KB | 0644 |
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asmmacro-64.h | File | 1.22 KB | 0644 |
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asmmacro.h | File | 14.07 KB | 0644 |
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atomic.h | File | 19.73 KB | 0644 |
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barrier.h | File | 8.03 KB | 0644 |
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bcache.h | File | 2.04 KB | 0644 |
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bitops.h | File | 15.46 KB | 0644 |
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bitrev.h | File | 608 B | 0644 |
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bmips-spaces.h | File | 268 B | 0644 |
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bmips.h | File | 3.45 KB | 0644 |
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bootinfo.h | File | 5.08 KB | 0644 |
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branch.h | File | 2.35 KB | 0644 |
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break.h | File | 787 B | 0644 |
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bug.h | File | 759 B | 0644 |
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bugs.h | File | 944 B | 0644 |
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cache.h | File | 546 B | 0644 |
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cacheflush.h | File | 4.99 KB | 0644 |
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cacheops.h | File | 3.71 KB | 0644 |
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cdmm.h | File | 3.67 KB | 0644 |
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cevt-r4k.h | File | 823 B | 0644 |
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checksum.h | File | 6.43 KB | 0644 |
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clock.h | File | 997 B | 0644 |
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clocksource.h | File | 884 B | 0644 |
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cmp.h | File | 492 B | 0644 |
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cmpxchg.h | File | 5.28 KB | 0644 |
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compat-signal.h | File | 640 B | 0644 |
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compat.h | File | 6.66 KB | 0644 |
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compiler.h | File | 2.96 KB | 0644 |
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cop2.h | File | 1.77 KB | 0644 |
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cpu-features.h | File | 19.46 KB | 0644 |
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cpu-info.h | File | 5.84 KB | 0644 |
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cpu-type.h | File | 4.13 KB | 0644 |
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cpu.h | File | 15.54 KB | 0644 |
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cpufeature.h | File | 717 B | 0644 |
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debug.h | File | 654 B | 0644 |
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delay.h | File | 841 B | 0644 |
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device.h | File | 347 B | 0644 |
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div64.h | File | 2.17 KB | 0644 |
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dma-coherence.h | File | 813 B | 0644 |
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dma-mapping.h | File | 981 B | 0644 |
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dma.h | File | 9.92 KB | 0644 |
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ds1287.h | File | 1019 B | 0644 |
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dsemul.h | File | 3.24 KB | 0644 |
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dsp.h | File | 1.91 KB | 0644 |
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edac.h | File | 819 B | 0644 |
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elf.h | File | 15.04 KB | 0644 |
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errno.h | File | 429 B | 0644 |
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eva.h | File | 796 B | 0644 |
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exec.h | File | 579 B | 0644 |
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extable.h | File | 241 B | 0644 |
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fb.h | File | 372 B | 0644 |
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fixmap.h | File | 2.29 KB | 0644 |
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floppy.h | File | 1.57 KB | 0644 |
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fpregdef.h | File | 2.66 KB | 0644 |
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fpu.h | File | 5.21 KB | 0644 |
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fpu_emulator.h | File | 5.74 KB | 0644 |
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ftrace.h | File | 2.11 KB | 0644 |
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futex.h | File | 4.87 KB | 0644 |
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gio_device.h | File | 1.5 KB | 0644 |
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gt64120.h | File | 19.37 KB | 0644 |
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hardirq.h | File | 544 B | 0644 |
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hazards.h | File | 8.36 KB | 0644 |
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highmem.h | File | 1.72 KB | 0644 |
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hpet.h | File | 1.93 KB | 0644 |
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hugetlb.h | File | 2.76 KB | 0644 |
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hw_irq.h | File | 475 B | 0644 |
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i8259.h | File | 2.52 KB | 0644 |
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ide.h | File | 330 B | 0644 |
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idle.h | File | 689 B | 0644 |
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inst.h | File | 2.34 KB | 0644 |
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io.h | File | 18.44 KB | 0644 |
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irq.h | File | 2.26 KB | 0644 |
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irq_cpu.h | File | 708 B | 0644 |
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irq_gt641xx.h | File | 2.69 KB | 0644 |
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irq_regs.h | File | 744 B | 0644 |
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irqflags.h | File | 4.04 KB | 0644 |
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isa-rev.h | File | 556 B | 0644 |
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isadep.h | File | 603 B | 0644 |
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jazz.h | File | 8 KB | 0644 |
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jazzdma.h | File | 2.97 KB | 0644 |
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jump_label.h | File | 1.4 KB | 0644 |
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kdebug.h | File | 303 B | 0644 |
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kexec.h | File | 1.53 KB | 0644 |
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kgdb.h | File | 1.19 KB | 0644 |
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kmap_types.h | File | 221 B | 0644 |
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kprobes.h | File | 2.68 KB | 0644 |
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kvm_host.h | File | 37.88 KB | 0644 |
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kvm_para.h | File | 2.09 KB | 0644 |
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linkage.h | File | 306 B | 0644 |
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llsc.h | File | 623 B | 0644 |
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local.h | File | 4.99 KB | 0644 |
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m48t37.h | File | 732 B | 0644 |
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maar.h | File | 4.04 KB | 0644 |
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machine.h | File | 2.93 KB | 0644 |
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mc146818-time.h | File | 3.69 KB | 0644 |
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mc146818rtc.h | File | 450 B | 0644 |
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mips-cm.h | File | 15.86 KB | 0644 |
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mips-cpc.h | File | 5.83 KB | 0644 |
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mips-cps.h | File | 6.55 KB | 0644 |
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mips-gic.h | File | 12.3 KB | 0644 |
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mips-r2-to-r6-emul.h | File | 2.05 KB | 0644 |
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mips_machine.h | File | 1.32 KB | 0644 |
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mips_mt.h | File | 707 B | 0644 |
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mipsmtregs.h | File | 10.9 KB | 0644 |
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mipsprom.h | File | 2.1 KB | 0644 |
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mipsregs.h | File | 88.1 KB | 0644 |
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mmu.h | File | 550 B | 0644 |
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mmu_context.h | File | 5.41 KB | 0644 |
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mmzone.h | File | 561 B | 0644 |
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module.h | File | 4.45 KB | 0644 |
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msa.h | File | 8.01 KB | 0644 |
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msc01_ic.h | File | 6.55 KB | 0644 |
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nile4.h | File | 10.33 KB | 0644 |
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paccess.h | File | 3.07 KB | 0644 |
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page.h | File | 7.19 KB | 0644 |
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pci.h | File | 4.08 KB | 0644 |
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perf_event.h | File | 482 B | 0644 |
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pgalloc.h | File | 3.21 KB | 0644 |
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pgtable-32.h | File | 7.31 KB | 0644 |
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pgtable-64.h | File | 10.87 KB | 0644 |
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pgtable-bits.h | File | 7.36 KB | 0644 |
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pgtable.h | File | 17.34 KB | 0644 |
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pm-cps.h | File | 1.68 KB | 0644 |
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pm.h | File | 3.99 KB | 0644 |
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pmon.h | File | 1.64 KB | 0644 |
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prefetch.h | File | 2.1 KB | 0644 |
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processor.h | File | 11.71 KB | 0644 |
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prom.h | File | 845 B | 0644 |
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ptrace.h | File | 5.55 KB | 0644 |
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r4k-timer.h | File | 604 B | 0644 |
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r4kcache.h | File | 26.34 KB | 0644 |
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reboot.h | File | 440 B | 0644 |
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reg.h | File | 26 B | 0644 |
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regdef.h | File | 2.63 KB | 0644 |
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rtlx.h | File | 2.1 KB | 0644 |
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seccomp.h | File | 800 B | 0644 |
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serial.h | File | 607 B | 0644 |
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setup.h | File | 884 B | 0644 |
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sgialib.h | File | 2.45 KB | 0644 |
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sgiarcs.h | File | 15.32 KB | 0644 |
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shmparam.h | File | 352 B | 0644 |
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sigcontext.h | File | 1.04 KB | 0644 |
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signal.h | File | 1.02 KB | 0644 |
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sim.h | File | 2.32 KB | 0644 |
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smp-cps.h | File | 1.18 KB | 0644 |
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smp-ops.h | File | 2.33 KB | 0644 |
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smp.h | File | 3.31 KB | 0644 |
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sni.h | File | 7.27 KB | 0644 |
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socket.h | File | 1.34 KB | 0644 |
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sparsemem.h | File | 486 B | 0644 |
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spinlock.h | File | 459 B | 0644 |
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spinlock_types.h | File | 188 B | 0644 |
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spram.h | File | 262 B | 0644 |
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stackframe.h | File | 10.82 KB | 0644 |
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stackprotector.h | File | 1.15 KB | 0644 |
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stacktrace.h | File | 2.15 KB | 0644 |
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string.h | File | 2.94 KB | 0644 |
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switch_to.h | File | 4.19 KB | 0644 |
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syscall.h | File | 3.57 KB | 0644 |
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termios.h | File | 2.89 KB | 0644 |
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thread_info.h | File | 6.63 KB | 0644 |
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time.h | File | 2.13 KB | 0644 |
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timex.h | File | 2.87 KB | 0644 |
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tlb.h | File | 1.09 KB | 0644 |
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tlbdebug.h | File | 403 B | 0644 |
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tlbex.h | File | 788 B | 0644 |
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tlbflush.h | File | 1.67 KB | 0644 |
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tlbmisc.h | File | 320 B | 0644 |
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topology.h | File | 619 B | 0644 |
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traps.h | File | 1.25 KB | 0644 |
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txx9irq.h | File | 743 B | 0644 |
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txx9pio.h | File | 592 B | 0644 |
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txx9tmr.h | File | 1.59 KB | 0644 |
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types.h | File | 487 B | 0644 |
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uaccess.h | File | 22.2 KB | 0644 |
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uasm.h | File | 9.18 KB | 0644 |
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unistd.h | File | 1.9 KB | 0644 |
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uprobes.h | File | 1.11 KB | 0644 |
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vdso.h | File | 3.72 KB | 0644 |
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vga.h | File | 1.26 KB | 0644 |
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vpe.h | File | 2.7 KB | 0644 |
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war.h | File | 7.48 KB | 0644 |
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watch.h | File | 827 B | 0644 |
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wbflush.h | File | 694 B | 0644 |
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yamon-dt.h | File | 1.88 KB | 0644 |
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