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Diffstat (limited to 'arch/unicore32/include/asm/memory.h')
-rw-r--r-- | arch/unicore32/include/asm/memory.h | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/arch/unicore32/include/asm/memory.h b/arch/unicore32/include/asm/memory.h deleted file mode 100644 index 66285178dd9b..000000000000 --- a/arch/unicore32/include/asm/memory.h +++ /dev/null @@ -1,102 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * linux/arch/unicore32/include/asm/memory.h - * - * Code specific to PKUnity SoC and UniCore ISA - * - * Copyright (C) 2001-2010 GUAN Xue-tao - * - * Note: this file should not be included by non-asm/.h files - */ -#ifndef __UNICORE_MEMORY_H__ -#define __UNICORE_MEMORY_H__ - -#include <linux/compiler.h> -#include <linux/const.h> -#include <linux/sizes.h> -#include <mach/memory.h> - -/* - * PAGE_OFFSET - the virtual address of the start of the kernel image - * TASK_SIZE - the maximum size of a user space task. - * TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area - */ -#define PAGE_OFFSET UL(0xC0000000) -#define TASK_SIZE (PAGE_OFFSET - UL(0x41000000)) -#define TASK_UNMAPPED_BASE (PAGE_OFFSET / 3) - -/* - * The module space lives between the addresses given by TASK_SIZE - * and PAGE_OFFSET - it must be within 32MB of the kernel text. - */ -#define MODULES_VADDR (PAGE_OFFSET - 16*1024*1024) -#if TASK_SIZE > MODULES_VADDR -#error Top of user space clashes with start of module space -#endif - -#define MODULES_END (PAGE_OFFSET) - -/* - * Allow 16MB-aligned ioremap pages - */ -#define IOREMAP_MAX_ORDER 24 - -/* - * Physical vs virtual RAM address space conversion. These are - * private definitions which should NOT be used outside memory.h - * files. Use virt_to_phys/phys_to_virt/__pa/__va instead. - */ -#ifndef __virt_to_phys -#define __virt_to_phys(x) ((x) - PAGE_OFFSET + PHYS_OFFSET) -#define __phys_to_virt(x) ((x) - PHYS_OFFSET + PAGE_OFFSET) -#endif - -/* - * Convert a page to/from a physical address - */ -#define page_to_phys(page) (__pfn_to_phys(page_to_pfn(page))) -#define phys_to_page(phys) (pfn_to_page(__phys_to_pfn(phys))) - -#ifndef __ASSEMBLY__ - -#ifndef arch_adjust_zones -#define arch_adjust_zones(max_zone_pfn) do { } while (0) -#endif - -/* - * PFNs are used to describe any physical page; this means - * PFN 0 == physical address 0. - * - * This is the PFN of the first RAM page in the kernel - * direct-mapped view. We assume this is the first page - * of RAM in the mem_map as well. - */ -#define PHYS_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT) - -/* - * Drivers should NOT use these either. - */ -#define __pa(x) __virt_to_phys((unsigned long)(x)) -#define __va(x) ((void *)__phys_to_virt((unsigned long)(x))) -#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) - -/* - * Conversion between a struct page and a physical address. - * - * page_to_pfn(page) convert a struct page * to a PFN number - * pfn_to_page(pfn) convert a _valid_ PFN number to struct page * - * - * virt_to_page(k) convert a _valid_ virtual address to struct page * - * virt_addr_valid(k) indicates whether a virtual address is valid - */ -#define ARCH_PFN_OFFSET PHYS_PFN_OFFSET - -#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) -#define virt_addr_valid(kaddr) ((unsigned long)(kaddr) >= PAGE_OFFSET && \ - (unsigned long)(kaddr) < (unsigned long)high_memory) - -#endif - -#include <asm-generic/memory_model.h> - -#endif |