/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_SH_TLB_H #define __ASM_SH_TLB_H #ifdef CONFIG_SUPERH64 # include <asm/tlb_64.h> #endif #ifndef __ASSEMBLY__ #include <linux/pagemap.h> #ifdef CONFIG_MMU #include <linux/swap.h> #include <asm/pgalloc.h> #include <asm/tlbflush.h> #include <asm/mmu_context.h> /* * TLB handling. This allows us to remove pages from the page * tables, and efficiently handle the TLB issues. */ struct mmu_gather { struct mm_struct *mm; unsigned int fullmm; unsigned long start, end; }; static inline void init_tlb_gather(struct mmu_gather *tlb) { tlb->start = TASK_SIZE; tlb->end = 0; if (tlb->fullmm) { tlb->start = 0; tlb->end = TASK_SIZE; } } static inline void arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end) { tlb->mm = mm; tlb->start = start; tlb->end = end; tlb->fullmm = !(start | (end+1)); init_tlb_gather(tlb); } static inline void arch_tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end, bool force) { if (tlb->fullmm || force) flush_tlb_mm(tlb->mm); /* keep the page table cache within bounds */ check_pgt_cache(); } static inline void tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep, unsigned long address) { if (tlb->start > address) tlb->start = address; if (tlb->end < address + PAGE_SIZE) tlb->end = address + PAGE_SIZE; } #define tlb_remove_huge_tlb_entry(h, tlb, ptep, address) \ tlb_remove_tlb_entry(tlb, ptep, address) /* * In the case of tlb vma handling, we can optimise these away in the * case where we're doing a full MM flush. When we're doing a munmap, * the vmas are adjusted to only cover the region to be torn down. */ static inline void tlb_start_vma(struct mmu_gather *tlb, struct vm_area_struct *vma) { if (!tlb->fullmm) flush_cache_range(vma, vma->vm_start, vma->vm_end); } static inline void tlb_end_vma(struct mmu_gather *tlb, struct vm_area_struct *vma) { if (!tlb->fullmm && tlb->end) { flush_tlb_range(vma, tlb->start, tlb->end); init_tlb_gather(tlb); } } static inline void tlb_flush_mmu_tlbonly(struct mmu_gather *tlb) { } static inline void tlb_flush_mmu_free(struct mmu_gather *tlb) { } static inline void tlb_flush_mmu(struct mmu_gather *tlb) { } static inline int __tlb_remove_page(struct mmu_gather *tlb, struct page *page) { free_page_and_swap_cache(page); return false; /* avoid calling tlb_flush_mmu */ } static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) { __tlb_remove_page(tlb, page); } static inline bool __tlb_remove_page_size(struct mmu_gather *tlb, struct page *page, int page_size) { return __tlb_remove_page(tlb, page); } static inline void tlb_remove_page_size(struct mmu_gather *tlb, struct page *page, int page_size) { return tlb_remove_page(tlb, page); } static inline tlb_flush_pmd_range(struct mmu_gather *tlb, unsigned long address, unsigned long size) { if (tlb->start > address) tlb->start = address; if (tlb->end < address + size) tlb->end = address + size; } #define tlb_remove_check_page_size_change tlb_remove_check_page_size_change static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb, unsigned int page_size) { } #define pte_free_tlb(tlb, ptep, addr) pte_free((tlb)->mm, ptep) #define pmd_free_tlb(tlb, pmdp, addr) pmd_free((tlb)->mm, pmdp) #define pud_free_tlb(tlb, pudp, addr) pud_free((tlb)->mm, pudp) #define tlb_migrate_finish(mm) do { } while (0) #if defined(CONFIG_CPU_SH4) || defined(CONFIG_SUPERH64) extern void tlb_wire_entry(struct vm_area_struct *, unsigned long, pte_t); extern void tlb_unwire_entry(void); #else static inline void tlb_wire_entry(struct vm_area_struct *vma , unsigned long addr, pte_t pte) { BUG(); } static inline void tlb_unwire_entry(void) { BUG(); } #endif #else /* CONFIG_MMU */ #define tlb_start_vma(tlb, vma) do { } while (0) #define tlb_end_vma(tlb, vma) do { } while (0) #define __tlb_remove_tlb_entry(tlb, pte, address) do { } while (0) #define tlb_flush(tlb) do { } while (0) #include <asm-generic/tlb.h> #endif /* CONFIG_MMU */ #endif /* __ASSEMBLY__ */ #endif /* __ASM_SH_TLB_H */
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adc.h | File | 253 B | 0644 |
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addrspace.h | File | 2.03 KB | 0644 |
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alignment.h | File | 654 B | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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atomic-grb.h | File | 2.6 KB | 0644 |
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atomic-irq.h | File | 1.63 KB | 0644 |
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atomic-llsc.h | File | 2.12 KB | 0644 |
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atomic.h | File | 1.78 KB | 0644 |
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barrier.h | File | 1.52 KB | 0644 |
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bitops-cas.h | File | 1.73 KB | 0644 |
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bitops-grb.h | File | 6.21 KB | 0644 |
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bitops-llsc.h | File | 2.79 KB | 0644 |
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bitops-op32.h | File | 3.78 KB | 0644 |
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bitops.h | File | 2.38 KB | 0644 |
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bl_bit_32.h | File | 639 B | 0644 |
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bl_bit_64.h | File | 979 B | 0644 |
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bug.h | File | 2.77 KB | 0644 |
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bugs.h | File | 1.38 KB | 0644 |
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cache.h | File | 1.2 KB | 0644 |
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cache_insns.h | File | 242 B | 0644 |
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cache_insns_32.h | File | 642 B | 0644 |
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cache_insns_64.h | File | 839 B | 0644 |
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cacheflush.h | File | 3.58 KB | 0644 |
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checksum.h | File | 140 B | 0644 |
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checksum_32.h | File | 5.21 KB | 0644 |
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clock.h | File | 436 B | 0644 |
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cmpxchg-cas.h | File | 549 B | 0644 |
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cmpxchg-grb.h | File | 2.8 KB | 0644 |
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cmpxchg-irq.h | File | 1.04 KB | 0644 |
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cmpxchg-llsc.h | File | 1.06 KB | 0644 |
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cmpxchg-xchg.h | File | 1.33 KB | 0644 |
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cmpxchg.h | File | 1.77 KB | 0644 |
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device.h | File | 450 B | 0644 |
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dma-mapping.h | File | 694 B | 0644 |
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dma-register.h | File | 1.8 KB | 0644 |
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dma.h | File | 3.74 KB | 0644 |
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dmabrg.h | File | 536 B | 0644 |
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dwarf.h | File | 9.8 KB | 0644 |
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elf.h | File | 7.28 KB | 0644 |
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entry-macros.S | File | 1.85 KB | 0644 |
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extable.h | File | 227 B | 0644 |
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fb.h | File | 375 B | 0644 |
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fixmap.h | File | 2.92 KB | 0644 |
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flat.h | File | 1.23 KB | 0644 |
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fpu.h | File | 1.77 KB | 0644 |
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freq.h | File | 472 B | 0644 |
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ftrace.h | File | 1.11 KB | 0644 |
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futex-cas.h | File | 728 B | 0644 |
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futex-irq.h | File | 482 B | 0644 |
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futex-llsc.h | File | 870 B | 0644 |
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futex.h | File | 1.5 KB | 0644 |
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gpio.h | File | 1017 B | 0644 |
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hardirq.h | File | 440 B | 0644 |
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hd64461.h | File | 11.79 KB | 0644 |
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heartbeat.h | File | 383 B | 0644 |
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hugetlb.h | File | 1.96 KB | 0644 |
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hw_breakpoint.h | File | 1.88 KB | 0644 |
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hw_irq.h | File | 915 B | 0644 |
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i2c-sh7760.h | File | 406 B | 0644 |
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io.h | File | 11.33 KB | 0644 |
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io_generic.h | File | 661 B | 0644 |
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io_noioport.h | File | 1.09 KB | 0644 |
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io_trapped.h | File | 1.44 KB | 0644 |
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irq.h | File | 1.68 KB | 0644 |
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irqflags.h | File | 226 B | 0644 |
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kdebug.h | File | 406 B | 0644 |
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kexec.h | File | 2.61 KB | 0644 |
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kgdb.h | File | 851 B | 0644 |
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kmap_types.h | File | 265 B | 0644 |
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kprobes.h | File | 1.51 KB | 0644 |
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linkage.h | File | 154 B | 0644 |
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machvec.h | File | 939 B | 0644 |
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mmu.h | File | 2.18 KB | 0644 |
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mmu_context.h | File | 4.44 KB | 0644 |
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mmu_context_32.h | File | 1.28 KB | 0644 |
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mmu_context_64.h | File | 1.97 KB | 0644 |
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mmzone.h | File | 1.1 KB | 0644 |
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module.h | File | 1005 B | 0644 |
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page.h | File | 6.06 KB | 0644 |
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pci.h | File | 3.19 KB | 0644 |
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perf_event.h | File | 797 B | 0644 |
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pgalloc.h | File | 1.86 KB | 0644 |
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pgtable-2level.h | File | 598 B | 0644 |
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pgtable-3level.h | File | 1.54 KB | 0644 |
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pgtable.h | File | 4 KB | 0644 |
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pgtable_32.h | File | 16.37 KB | 0644 |
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pgtable_64.h | File | 11.32 KB | 0644 |
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posix_types.h | File | 146 B | 0644 |
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processor.h | File | 4.41 KB | 0644 |
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processor_32.h | File | 4.67 KB | 0644 |
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processor_64.h | File | 5.54 KB | 0644 |
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ptrace.h | File | 3.39 KB | 0644 |
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ptrace_32.h | File | 307 B | 0644 |
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ptrace_64.h | File | 312 B | 0644 |
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push-switch.h | File | 755 B | 0644 |
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reboot.h | File | 472 B | 0644 |
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romimage-macros.h | File | 1.1 KB | 0644 |
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rtc.h | File | 383 B | 0644 |
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seccomp.h | File | 280 B | 0644 |
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sections.h | File | 311 B | 0644 |
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segment.h | File | 879 B | 0644 |
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setup.h | File | 725 B | 0644 |
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sfp-machine.h | File | 3.43 KB | 0644 |
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sh7760fb.h | File | 5.61 KB | 0644 |
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sh_bios.h | File | 743 B | 0644 |
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shmparam.h | File | 629 B | 0644 |
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siu.h | File | 539 B | 0644 |
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smc37c93x.h | File | 5.56 KB | 0644 |
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smp-ops.h | File | 1012 B | 0644 |
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smp.h | File | 1.83 KB | 0644 |
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sparsemem.h | File | 443 B | 0644 |
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spi.h | File | 265 B | 0644 |
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spinlock-cas.h | File | 2.09 KB | 0644 |
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spinlock-llsc.h | File | 4.13 KB | 0644 |
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spinlock.h | File | 578 B | 0644 |
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spinlock_types.h | File | 463 B | 0644 |
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sram.h | File | 670 B | 0644 |
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stackprotector.h | File | 711 B | 0644 |
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stacktrace.h | File | 606 B | 0644 |
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string.h | File | 131 B | 0644 |
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string_32.h | File | 2.66 KB | 0644 |
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string_64.h | File | 499 B | 0644 |
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suspend.h | File | 2.52 KB | 0644 |
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switch_to.h | File | 492 B | 0644 |
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switch_to_32.h | File | 3.55 KB | 0644 |
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switch_to_64.h | File | 968 B | 0644 |
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syscall.h | File | 267 B | 0644 |
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syscall_32.h | File | 2.42 KB | 0644 |
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syscall_64.h | File | 1.79 KB | 0644 |
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syscalls.h | File | 564 B | 0644 |
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syscalls_32.h | File | 1022 B | 0644 |
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syscalls_64.h | File | 441 B | 0644 |
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thread_info.h | File | 5.32 KB | 0644 |
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timex.h | File | 637 B | 0644 |
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tlb.h | File | 4.12 KB | 0644 |
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tlb_64.h | File | 2.08 KB | 0644 |
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tlbflush.h | File | 1.77 KB | 0644 |
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topology.h | File | 645 B | 0644 |
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traps.h | File | 487 B | 0644 |
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traps_32.h | File | 1.31 KB | 0644 |
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traps_64.h | File | 851 B | 0644 |
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types.h | File | 411 B | 0644 |
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uaccess.h | File | 4.83 KB | 0644 |
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uaccess_32.h | File | 3.77 KB | 0644 |
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uaccess_64.h | File | 2.2 KB | 0644 |
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unaligned-sh4a.h | File | 4.51 KB | 0644 |
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unaligned.h | File | 359 B | 0644 |
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uncached.h | File | 1.34 KB | 0644 |
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unistd.h | File | 952 B | 0644 |
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unwinder.h | File | 856 B | 0644 |
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user.h | File | 2.52 KB | 0644 |
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vga.h | File | 98 B | 0644 |
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vmlinux.lds.h | File | 558 B | 0644 |
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watchdog.h | File | 4.14 KB | 0644 |
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word-at-a-time.h | File | 1.29 KB | 0644 |
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