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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_FIXMAP_H
#define _ASM_FIXMAP_H
/*
* This file defines the locations of the fixed mappings on parisc.
*
* All of the values in this file are machine virtual addresses.
*
* All of the values in this file must be <4GB (because of assembly
* loading restrictions). If you place this region anywhere above
* __PAGE_OFFSET, you must adjust the memory map accordingly */
/* The alias region is used in kernel space to do copy/clear to or
* from areas congruently mapped with user space. It is 8MB large
* and must be 16MB aligned */
#define TMPALIAS_MAP_START ((__PAGE_OFFSET) - 16*1024*1024)
/* This is the kernel area for all maps (vmalloc, dma etc.) most
* usually, it extends up to TMPALIAS_MAP_START. Virtual addresses
* 0..GATEWAY_PAGE_SIZE are reserved for the gateway page */
#define KERNEL_MAP_START (GATEWAY_PAGE_SIZE)
#define KERNEL_MAP_END (TMPALIAS_MAP_START)
#ifndef __ASSEMBLY__
extern void *parisc_vmalloc_start;
#define PCXL_DMA_MAP_SIZE (8*1024*1024)
#define VMALLOC_START ((unsigned long)parisc_vmalloc_start)
#define VMALLOC_END (KERNEL_MAP_END)
#endif /*__ASSEMBLY__*/
#endif /*_ASM_FIXMAP_H*/
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