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: /lib/modules/5.11.0-1022-aws/build/arch/arc/include/asm/ [ drwxr-xr-x ]
name : highmem.h /* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2015 Synopsys, Inc. (www.synopsys.com) */ #ifndef _ASM_HIGHMEM_H #define _ASM_HIGHMEM_H #ifdef CONFIG_HIGHMEM #include <uapi/asm/page.h> #include <asm/kmap_size.h> #define FIXMAP_SIZE PGDIR_SIZE #define PKMAP_SIZE PGDIR_SIZE /* start after vmalloc area */ #define FIXMAP_BASE (PAGE_OFFSET - FIXMAP_SIZE - PKMAP_SIZE) #define FIX_KMAP_SLOTS (KM_MAX_IDX * NR_CPUS) #define FIX_KMAP_BEGIN (0UL) #define FIX_KMAP_END ((FIX_KMAP_BEGIN + FIX_KMAP_SLOTS) - 1) #define FIXADDR_TOP (FIXMAP_BASE + (FIX_KMAP_END << PAGE_SHIFT)) /* * This should be converted to the asm-generic version, but of course this * is needlessly different from all other architectures. Sigh - tglx */ #define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT)) #define __virt_to_fix(x) (((FIXADDR_TOP - ((x) & PAGE_MASK))) >> PAGE_SHIFT) /* start after fixmap area */ #define PKMAP_BASE (FIXMAP_BASE + FIXMAP_SIZE) #define LAST_PKMAP (PKMAP_SIZE >> PAGE_SHIFT) #define LAST_PKMAP_MASK (LAST_PKMAP - 1) #define PKMAP_ADDR(nr) (PKMAP_BASE + ((nr) << PAGE_SHIFT)) #define PKMAP_NR(virt) (((virt) - PKMAP_BASE) >> PAGE_SHIFT) #include <asm/cacheflush.h> extern void kmap_init(void); #define arch_kmap_local_post_unmap(vaddr) \ local_flush_tlb_kernel_range(vaddr, vaddr + PAGE_SIZE) static inline void flush_cache_kmaps(void) { flush_cache_all(); } #endif #endif