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Diffstat (limited to 'include/asm-xtensa/fixmap.h')
| -rw-r--r-- | include/asm-xtensa/fixmap.h | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/include/asm-xtensa/fixmap.h b/include/asm-xtensa/fixmap.h deleted file mode 100644 index 4423b8ad4954..000000000000 --- a/include/asm-xtensa/fixmap.h +++ /dev/null @@ -1,252 +0,0 @@ -/* - * include/asm-xtensa/fixmap.h - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2001 - 2005 Tensilica Inc. - */ - -#ifndef _XTENSA_FIXMAP_H -#define _XTENSA_FIXMAP_H - -#include <asm/processor.h> - -#ifdef CONFIG_MMU - -/* - * Here we define all the compile-time virtual addresses. - */ - -#if XCHAL_SEG_MAPPABLE_VADDR != 0 -# error "Current port requires virtual user space starting at 0" -#endif -#if XCHAL_SEG_MAPPABLE_SIZE < 0x80000000 -# error "Current port requires at least 0x8000000 bytes for user space" -#endif - -/* Verify instruction/data ram/rom and xlmi don't overlay vmalloc space. */ - -#define __IN_VMALLOC(addr) \ - (((addr) >= VMALLOC_START) && ((addr) < VMALLOC_END)) -#define __SPAN_VMALLOC(start,end) \ - (((start) < VMALLOC_START) && ((end) >= VMALLOC_END)) -#define INSIDE_VMALLOC(start,end) \ - (__IN_VMALLOC((start)) || __IN_VMALLOC(end) || __SPAN_VMALLOC((start),(end))) - -#if XCHAL_NUM_INSTROM -# if XCHAL_NUM_INSTROM == 1 -# if INSIDE_VMALLOC(XCHAL_INSTROM0_VADDR,XCHAL_INSTROM0_VADDR+XCHAL_INSTROM0_SIZE) -# error vmalloc range conflicts with instrom0 -# endif -# endif -# if XCHAL_NUM_INSTROM == 2 -# if INSIDE_VMALLOC(XCHAL_INSTROM1_VADDR,XCHAL_INSTROM1_VADDR+XCHAL_INSTROM1_SIZE) -# error vmalloc range conflicts with instrom1 -# endif -# endif -#endif - -#if XCHAL_NUM_INSTRAM -# if XCHAL_NUM_INSTRAM == 1 -# if INSIDE_VMALLOC(XCHAL_INSTRAM0_VADDR,XCHAL_INSTRAM0_VADDR+XCHAL_INSTRAM0_SIZE) -# error vmalloc range conflicts with instram0 -# endif -# endif -# if XCHAL_NUM_INSTRAM == 2 -# if INSIDE_VMALLOC(XCHAL_INSTRAM1_VADDR,XCHAL_INSTRAM1_VADDR+XCHAL_INSTRAM1_SIZE) -# error vmalloc range conflicts with instram1 -# endif -# endif -#endif - -#if XCHAL_NUM_DATAROM -# if XCHAL_NUM_DATAROM == 1 -# if INSIDE_VMALLOC(XCHAL_DATAROM0_VADDR,XCHAL_DATAROM0_VADDR+XCHAL_DATAROM0_SIZE) -# error vmalloc range conflicts with datarom0 -# endif -# endif -# if XCHAL_NUM_DATAROM == 2 -# if INSIDE_VMALLOC(XCHAL_DATAROM1_VADDR,XCHAL_DATAROM1_VADDR+XCHAL_DATAROM1_SIZE) -# error vmalloc range conflicts with datarom1 -# endif -# endif -#endif - -#if XCHAL_NUM_DATARAM -# if XCHAL_NUM_DATARAM == 1 -# if INSIDE_VMALLOC(XCHAL_DATARAM0_VADDR,XCHAL_DATARAM0_VADDR+XCHAL_DATARAM0_SIZE) -# error vmalloc range conflicts with dataram0 -# endif -# endif -# if XCHAL_NUM_DATARAM == 2 -# if INSIDE_VMALLOC(XCHAL_DATARAM1_VADDR,XCHAL_DATARAM1_VADDR+XCHAL_DATARAM1_SIZE) -# error vmalloc range conflicts with dataram1 -# endif -# endif -#endif - -#if XCHAL_NUM_XLMI -# if XCHAL_NUM_XLMI == 1 -# if INSIDE_VMALLOC(XCHAL_XLMI0_VADDR,XCHAL_XLMI0_VADDR+XCHAL_XLMI0_SIZE) -# error vmalloc range conflicts with xlmi0 -# endif -# endif -# if XCHAL_NUM_XLMI == 2 -# if INSIDE_VMALLOC(XCHAL_XLMI1_VADDR,XCHAL_XLMI1_VADDR+XCHAL_XLMI1_SIZE) -# error vmalloc range conflicts with xlmi1 -# endif -# endif -#endif - -#if (XCHAL_NUM_INSTROM > 2) || \ - (XCHAL_NUM_INSTRAM > 2) || \ - (XCHAL_NUM_DATARAM > 2) || \ - (XCHAL_NUM_DATAROM > 2) || \ - (XCHAL_NUM_XLMI > 2) -# error Insufficient checks on vmalloc above for more than 2 devices -#endif - -/* - * USER_VM_SIZE does not necessarily equal TASK_SIZE. We bumped - * TASK_SIZE down to 0x4000000 to simplify the handling of windowed - * call instructions (currently limited to a range of 1 GByte). User - * tasks may very well reclaim the VM space from 0x40000000 to - * 0x7fffffff in the future, so we do not want the kernel becoming - * accustomed to having any of its stuff (e.g., page tables) in this - * region. This VM region is no-man's land for now. - */ - -#define USER_VM_START XCHAL_SEG_MAPPABLE_VADDR -#define USER_VM_SIZE 0x80000000 - -/* Size of page table: */ - -#define PGTABLE_SIZE_BITS (32 - XCHAL_MMU_MIN_PTE_PAGE_SIZE + 2) -#define PGTABLE_SIZE (1L << PGTABLE_SIZE_BITS) - -/* All kernel-mappable space: */ - -#define KERNEL_ALLMAP_START (USER_VM_START + USER_VM_SIZE) -#define KERNEL_ALLMAP_SIZE (XCHAL_SEG_MAPPABLE_SIZE - KERNEL_ALLMAP_START) - -/* Carve out page table at start of kernel-mappable area: */ - -#if KERNEL_ALLMAP_SIZE < PGTABLE_SIZE -#error "Gimme some space for page table!" -#endif -#define PGTABLE_START KERNEL_ALLMAP_START - -/* Remaining kernel-mappable space: */ - -#define KERNEL_MAPPED_START (KERNEL_ALLMAP_START + PGTABLE_SIZE) -#define KERNEL_MAPPED_SIZE (KERNEL_ALLMAP_SIZE - PGTABLE_SIZE) - -#if KERNEL_MAPPED_SIZE < 0x01000000 /* 16 MB is arbitrary for now */ -# error "Shouldn't the kernel have at least *some* mappable space?" -#endif - -#define MAX_LOW_MEMORY XCHAL_KSEG_CACHED_SIZE - -#endif - -/* - * Some constants used elsewhere, but perhaps only in Xtensa header - * files, so maybe we can get rid of some and access compile-time HAL - * directly... - * - * Note: We assume that system RAM is located at the very start of the - * kernel segments !! - */ -#define KERNEL_VM_LOW XCHAL_KSEG_CACHED_VADDR -#define KERNEL_VM_HIGH XCHAL_KSEG_BYPASS_VADDR -#define KERNEL_SPACE XCHAL_KSEG_CACHED_VADDR - -/* - * Returns the physical/virtual addresses of the kernel space - * (works with the cached kernel segment only, which is the - * one normally used for kernel operation). - */ - -/* PHYSICAL BYPASS CACHED - * - * bypass vaddr bypass paddr * cached vaddr - * cached vaddr cached paddr bypass vaddr * - * bypass paddr * bypass vaddr cached vaddr - * cached paddr * bypass vaddr cached vaddr - * other * * * - */ - -#define PHYSADDR(a) \ -(((unsigned)(a) >= XCHAL_KSEG_BYPASS_VADDR \ - && (unsigned)(a) < XCHAL_KSEG_BYPASS_VADDR + XCHAL_KSEG_BYPASS_SIZE) ? \ - (unsigned)(a) - XCHAL_KSEG_BYPASS_VADDR + XCHAL_KSEG_BYPASS_PADDR : \ - ((unsigned)(a) >= XCHAL_KSEG_CACHED_VADDR \ - && (unsigned)(a) < XCHAL_KSEG_CACHED_VADDR + XCHAL_KSEG_CACHED_SIZE) ? \ - (unsigned)(a) - XCHAL_KSEG_CACHED_VADDR + XCHAL_KSEG_CACHED_PADDR : \ - (unsigned)(a)) - -#define BYPASS_ADDR(a) \ -(((unsigned)(a) >= XCHAL_KSEG_BYPASS_PADDR \ - && (unsigned)(a) < XCHAL_KSEG_BYPASS_PADDR + XCHAL_KSEG_BYPASS_SIZE) ? \ - (unsigned)(a) - XCHAL_KSEG_BYPASS_PADDR + XCHAL_KSEG_BYPASS_VADDR : \ - ((unsigned)(a) >= XCHAL_KSEG_CACHED_PADDR \ - && (unsigned)(a) < XCHAL_KSEG_CACHED_PADDR + XCHAL_KSEG_CACHED_SIZE) ? \ - (unsigned)(a) - XCHAL_KSEG_CACHED_PADDR + XCHAL_KSEG_BYPASS_VADDR : \ - ((unsigned)(a) >= XCHAL_KSEG_CACHED_VADDR \ - && (unsigned)(a) < XCHAL_KSEG_CACHED_VADDR+XCHAL_KSEG_CACHED_SIZE)? \ - (unsigned)(a) - XCHAL_KSEG_CACHED_VADDR+XCHAL_KSEG_BYPASS_VADDR: \ - (unsigned)(a)) - -#define CACHED_ADDR(a) \ -(((unsigned)(a) >= XCHAL_KSEG_BYPASS_PADDR \ - && (unsigned)(a) < XCHAL_KSEG_BYPASS_PADDR + XCHAL_KSEG_BYPASS_SIZE) ? \ - (unsigned)(a) - XCHAL_KSEG_BYPASS_PADDR + XCHAL_KSEG_CACHED_VADDR : \ - ((unsigned)(a) >= XCHAL_KSEG_CACHED_PADDR \ - && (unsigned)(a) < XCHAL_KSEG_CACHED_PADDR + XCHAL_KSEG_CACHED_SIZE) ? \ - (unsigned)(a) - XCHAL_KSEG_CACHED_PADDR + XCHAL_KSEG_CACHED_VADDR : \ - ((unsigned)(a) >= XCHAL_KSEG_BYPASS_VADDR \ - && (unsigned)(a) < XCHAL_KSEG_BYPASS_VADDR+XCHAL_KSEG_BYPASS_SIZE) ? \ - (unsigned)(a) - XCHAL_KSEG_BYPASS_VADDR+XCHAL_KSEG_CACHED_VADDR : \ - (unsigned)(a)) - -#define PHYSADDR_IO(a) \ -(((unsigned)(a) >= XCHAL_KIO_BYPASS_VADDR \ - && (unsigned)(a) < XCHAL_KIO_BYPASS_VADDR + XCHAL_KIO_BYPASS_SIZE) ? \ - (unsigned)(a) - XCHAL_KIO_BYPASS_VADDR + XCHAL_KIO_BYPASS_PADDR : \ - ((unsigned)(a) >= XCHAL_KIO_CACHED_VADDR \ - && (unsigned)(a) < XCHAL_KIO_CACHED_VADDR + XCHAL_KIO_CACHED_SIZE) ? \ - (unsigned)(a) - XCHAL_KIO_CACHED_VADDR + XCHAL_KIO_CACHED_PADDR : \ - (unsigned)(a)) - -#define BYPASS_ADDR_IO(a) \ -(((unsigned)(a) >= XCHAL_KIO_BYPASS_PADDR \ - && (unsigned)(a) < XCHAL_KIO_BYPASS_PADDR + XCHAL_KIO_BYPASS_SIZE) ? \ - (unsigned)(a) - XCHAL_KIO_BYPASS_PADDR + XCHAL_KIO_BYPASS_VADDR : \ - ((unsigned)(a) >= XCHAL_KIO_CACHED_PADDR \ - && (unsigned)(a) < XCHAL_KIO_CACHED_PADDR + XCHAL_KIO_CACHED_SIZE) ? \ - (unsigned)(a) - XCHAL_KIO_CACHED_PADDR + XCHAL_KIO_BYPASS_VADDR : \ - ((unsigned)(a) >= XCHAL_KIO_CACHED_VADDR \ - && (unsigned)(a) < XCHAL_KIO_CACHED_VADDR + XCHAL_KIO_CACHED_SIZE) ? \ - (unsigned)(a) - XCHAL_KIO_CACHED_VADDR + XCHAL_KIO_BYPASS_VADDR : \ - (unsigned)(a)) - -#define CACHED_ADDR_IO(a) \ -(((unsigned)(a) >= XCHAL_KIO_BYPASS_PADDR \ - && (unsigned)(a) < XCHAL_KIO_BYPASS_PADDR + XCHAL_KIO_BYPASS_SIZE) ? \ - (unsigned)(a) - XCHAL_KIO_BYPASS_PADDR + XCHAL_KIO_CACHED_VADDR : \ - ((unsigned)(a) >= XCHAL_KIO_CACHED_PADDR \ - && (unsigned)(a) < XCHAL_KIO_CACHED_PADDR + XCHAL_KIO_CACHED_SIZE) ? \ - (unsigned)(a) - XCHAL_KIO_CACHED_PADDR + XCHAL_KIO_CACHED_VADDR : \ - ((unsigned)(a) >= XCHAL_KIO_BYPASS_VADDR \ - && (unsigned)(a) < XCHAL_KIO_BYPASS_VADDR + XCHAL_KIO_BYPASS_SIZE) ? \ - (unsigned)(a) - XCHAL_KIO_BYPASS_VADDR + XCHAL_KIO_CACHED_VADDR : \ - (unsigned)(a)) - -#endif /* _XTENSA_ADDRSPACE_H */ - - - - - |