summaryrefslogtreecommitdiff
path: root/include/asm-arm/memory.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-arm/memory.h')
-rw-r--r--include/asm-arm/memory.h334
1 files changed, 0 insertions, 334 deletions
diff --git a/include/asm-arm/memory.h b/include/asm-arm/memory.h
deleted file mode 100644
index 9ba4d7136e6b..000000000000
--- a/include/asm-arm/memory.h
+++ /dev/null
@@ -1,334 +0,0 @@
-/*
- * linux/include/asm-arm/memory.h
- *
- * Copyright (C) 2000-2002 Russell King
- * modification for nommu, Hyok S. Choi, 2004
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Note: this file should not be included by non-asm/.h files
- */
-#ifndef __ASM_ARM_MEMORY_H
-#define __ASM_ARM_MEMORY_H
-
-/*
- * Allow for constants defined here to be used from assembly code
- * by prepending the UL suffix only with actual C code compilation.
- */
-#ifndef __ASSEMBLY__
-#define UL(x) (x##UL)
-#else
-#define UL(x) (x)
-#endif
-
-#include <linux/compiler.h>
-#include <asm/arch/memory.h>
-#include <asm/sizes.h>
-
-#ifdef CONFIG_MMU
-
-#ifndef TASK_SIZE
-/*
- * TASK_SIZE - the maximum size of a user space task.
- * TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area
- */
-#define TASK_SIZE UL(0xbf000000)
-#define TASK_UNMAPPED_BASE UL(0x40000000)
-#endif
-
-/*
- * The maximum size of a 26-bit user space task.
- */
-#define TASK_SIZE_26 UL(0x04000000)
-
-/*
- * Page offset: 3GB
- */
-#ifndef PAGE_OFFSET
-#define PAGE_OFFSET UL(0xc0000000)
-#endif
-
-/*
- * The module space lives between the addresses given by TASK_SIZE
- * and PAGE_OFFSET - it must be within 32MB of the kernel text.
- */
-#define MODULE_END (PAGE_OFFSET)
-#define MODULE_START (MODULE_END - 16*1048576)
-
-#if TASK_SIZE > MODULE_START
-#error Top of user space clashes with start of module space
-#endif
-
-/*
- * The XIP kernel gets mapped at the bottom of the module vm area.
- * Since we use sections to map it, this macro replaces the physical address
- * with its virtual address while keeping offset from the base section.
- */
-#define XIP_VIRT_ADDR(physaddr) (MODULE_START + ((physaddr) & 0x000fffff))
-
-/*
- * Allow 16MB-aligned ioremap pages
- */
-#define IOREMAP_MAX_ORDER 24
-
-#else /* CONFIG_MMU */
-
-/*
- * The limitation of user task size can grow up to the end of free ram region.
- * It is difficult to define and perhaps will never meet the original meaning
- * of this define that was meant to.
- * Fortunately, there is no reference for this in noMMU mode, for now.
- */
-#ifndef TASK_SIZE
-#define TASK_SIZE (CONFIG_DRAM_SIZE)
-#endif
-
-#ifndef TASK_UNMAPPED_BASE
-#define TASK_UNMAPPED_BASE UL(0x00000000)
-#endif
-
-#ifndef PHYS_OFFSET
-#define PHYS_OFFSET (CONFIG_DRAM_BASE)
-#endif
-
-#ifndef END_MEM
-#define END_MEM (CONFIG_DRAM_BASE + CONFIG_DRAM_SIZE)
-#endif
-
-#ifndef PAGE_OFFSET
-#define PAGE_OFFSET (PHYS_OFFSET)
-#endif
-
-/*
- * The module can be at any place in ram in nommu mode.
- */
-#define MODULE_END (END_MEM)
-#define MODULE_START (PHYS_OFFSET)
-
-#endif /* !CONFIG_MMU */
-
-/*
- * Size of DMA-consistent memory region. Must be multiple of 2M,
- * between 2MB and 14MB inclusive.
- */
-#ifndef CONSISTENT_DMA_SIZE
-#define CONSISTENT_DMA_SIZE SZ_2M
-#endif
-
-/*
- * 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 physical address to a Page Frame Number and back
- */
-#define __phys_to_pfn(paddr) ((paddr) >> PAGE_SHIFT)
-#define __pfn_to_phys(pfn) ((pfn) << PAGE_SHIFT)
-
-#ifndef __ASSEMBLY__
-
-/*
- * The DMA mask corresponding to the maximum bus address allocatable
- * using GFP_DMA. The default here places no restriction on DMA
- * allocations. This must be the smallest DMA mask in the system,
- * so a successful GFP_DMA allocation will always satisfy this.
- */
-#ifndef ISA_DMA_THRESHOLD
-#define ISA_DMA_THRESHOLD (0xffffffffULL)
-#endif
-
-#ifndef arch_adjust_zones
-#define arch_adjust_zones(node,size,holes) 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)
-
-/*
- * These are *only* valid on the kernel direct mapped RAM memory.
- * Note: Drivers should NOT use these. They are the wrong
- * translation for translating DMA addresses. Use the driver
- * DMA support - see dma-mapping.h.
- */
-static inline unsigned long virt_to_phys(void *x)
-{
- return __virt_to_phys((unsigned long)(x));
-}
-
-static inline void *phys_to_virt(unsigned long x)
-{
- return (void *)(__phys_to_virt((unsigned long)(x)));
-}
-
-/*
- * 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)
-
-/*
- * Virtual <-> DMA view memory address translations
- * Again, these are *only* valid on the kernel direct mapped RAM
- * memory. Use of these is *deprecated* (and that doesn't mean
- * use the __ prefixed forms instead.) See dma-mapping.h.
- */
-static inline __deprecated unsigned long virt_to_bus(void *x)
-{
- return __virt_to_bus((unsigned long)x);
-}
-
-static inline __deprecated void *bus_to_virt(unsigned long x)
-{
- return (void *)__bus_to_virt(x);
-}
-
-/*
- * Conversion between a struct page and a physical address.
- *
- * Note: when converting an unknown physical address to a
- * struct page, the resulting pointer must be validated
- * using VALID_PAGE(). It must return an invalid struct page
- * for any physical address not corresponding to a system
- * RAM 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 *
- * pfn_valid(pfn) indicates whether a PFN number is valid
- *
- * virt_to_page(k) convert a _valid_ virtual address to struct page *
- * virt_addr_valid(k) indicates whether a virtual address is valid
- */
-#ifndef CONFIG_DISCONTIGMEM
-
-#define ARCH_PFN_OFFSET PHYS_PFN_OFFSET
-
-#ifndef CONFIG_SPARSEMEM
-#define pfn_valid(pfn) ((pfn) >= PHYS_PFN_OFFSET && (pfn) < (PHYS_PFN_OFFSET + max_mapnr))
-#endif
-
-#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)
-
-#define PHYS_TO_NID(addr) (0)
-
-#else /* CONFIG_DISCONTIGMEM */
-
-/*
- * This is more complex. We have a set of mem_map arrays spread
- * around in memory.
- */
-#include <linux/numa.h>
-
-#define arch_pfn_to_nid(pfn) PFN_TO_NID(pfn)
-#define arch_local_page_offset(pfn, nid) LOCAL_MAP_NR((pfn) << PAGE_SHIFT)
-
-#define pfn_valid(pfn) \
- ({ \
- unsigned int nid = PFN_TO_NID(pfn); \
- int valid = nid < MAX_NUMNODES; \
- if (valid) { \
- pg_data_t *node = NODE_DATA(nid); \
- valid = (pfn - node->node_start_pfn) < \
- node->node_spanned_pages; \
- } \
- valid; \
- })
-
-#define virt_to_page(kaddr) \
- (ADDR_TO_MAPBASE(kaddr) + LOCAL_MAP_NR(kaddr))
-
-#define virt_addr_valid(kaddr) (KVADDR_TO_NID(kaddr) < MAX_NUMNODES)
-
-/*
- * Common discontigmem stuff.
- * PHYS_TO_NID is used by the ARM kernel/setup.c
- */
-#define PHYS_TO_NID(addr) PFN_TO_NID((addr) >> PAGE_SHIFT)
-
-/*
- * Given a kaddr, ADDR_TO_MAPBASE finds the owning node of the memory
- * and returns the mem_map of that node.
- */
-#define ADDR_TO_MAPBASE(kaddr) NODE_MEM_MAP(KVADDR_TO_NID(kaddr))
-
-/*
- * Given a page frame number, find the owning node of the memory
- * and returns the mem_map of that node.
- */
-#define PFN_TO_MAPBASE(pfn) NODE_MEM_MAP(PFN_TO_NID(pfn))
-
-#ifdef NODE_MEM_SIZE_BITS
-#define NODE_MEM_SIZE_MASK ((1 << NODE_MEM_SIZE_BITS) - 1)
-
-/*
- * Given a kernel address, find the home node of the underlying memory.
- */
-#define KVADDR_TO_NID(addr) \
- (((unsigned long)(addr) - PAGE_OFFSET) >> NODE_MEM_SIZE_BITS)
-
-/*
- * Given a page frame number, convert it to a node id.
- */
-#define PFN_TO_NID(pfn) \
- (((pfn) - PHYS_PFN_OFFSET) >> (NODE_MEM_SIZE_BITS - PAGE_SHIFT))
-
-/*
- * Given a kaddr, LOCAL_MEM_MAP finds the owning node of the memory
- * and returns the index corresponding to the appropriate page in the
- * node's mem_map.
- */
-#define LOCAL_MAP_NR(addr) \
- (((unsigned long)(addr) & NODE_MEM_SIZE_MASK) >> PAGE_SHIFT)
-
-#endif /* NODE_MEM_SIZE_BITS */
-
-#endif /* !CONFIG_DISCONTIGMEM */
-
-/*
- * For BIO. "will die". Kill me when bio_to_phys() and bvec_to_phys() die.
- */
-#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
-
-/*
- * Optional device DMA address remapping. Do _not_ use directly!
- * We should really eliminate virt_to_bus() here - it's deprecated.
- */
-#ifndef __arch_page_to_dma
-#define page_to_dma(dev, page) ((dma_addr_t)__virt_to_bus((unsigned long)page_address(page)))
-#define dma_to_virt(dev, addr) ((void *)__bus_to_virt(addr))
-#define virt_to_dma(dev, addr) ((dma_addr_t)__virt_to_bus((unsigned long)(addr)))
-#else
-#define page_to_dma(dev, page) (__arch_page_to_dma(dev, page))
-#define dma_to_virt(dev, addr) (__arch_dma_to_virt(dev, addr))
-#define virt_to_dma(dev, addr) (__arch_virt_to_dma(dev, addr))
-#endif
-
-/*
- * Optional coherency support. Currently used only by selected
- * Intel XSC3-based systems.
- */
-#ifndef arch_is_coherent
-#define arch_is_coherent() 0
-#endif
-
-#endif
-
-#include <asm-generic/memory_model.h>
-
-#endif