Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758819AbYFZM6d (ORCPT ); Thu, 26 Jun 2008 08:58:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759047AbYFZMlV (ORCPT ); Thu, 26 Jun 2008 08:41:21 -0400 Received: from 238.225.broadband7.iol.cz ([88.102.225.238]:22447 "EHLO monstr.eu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1759584AbYFZMlO (ORCPT ); Thu, 26 Jun 2008 08:41:14 -0400 From: monstr@seznam.cz To: linux-kernel@vger.kernel.org Cc: arnd@arndb.de, linux-arch@vger.kernel.org, stephen.neuendorffer@xilinx.com, John.Linn@xilinx.com, john.williams@petalogix.com, matthew@wil.cx, will.newton@gmail.com, drepper@redhat.com, microblaze-uclinux@itee.uq.edu.au, grant.likely@secretlab.ca, linuxppc-dev@ozlabs.org, vapier.adi@gmail.com, alan@lxorguk.ukuu.org.uk, hpa@zytor.com, Michal Simek Subject: [PATCH 32/60] microblaze_v4: page.h, segment.h, unaligned.h Date: Thu, 26 Jun 2008 14:30:01 +0200 Message-Id: <1214483429-32360-33-git-send-email-monstr@seznam.cz> X-Mailer: git-send-email 1.5.4.GIT In-Reply-To: <1214483429-32360-32-git-send-email-monstr@seznam.cz> References: <1214483429-32360-1-git-send-email-monstr@seznam.cz> <1214483429-32360-2-git-send-email-monstr@seznam.cz> <1214483429-32360-3-git-send-email-monstr@seznam.cz> <1214483429-32360-4-git-send-email-monstr@seznam.cz> <1214483429-32360-5-git-send-email-monstr@seznam.cz> <1214483429-32360-6-git-send-email-monstr@seznam.cz> <1214483429-32360-7-git-send-email-monstr@seznam.cz> <1214483429-32360-8-git-send-email-monstr@seznam.cz> <1214483429-32360-9-git-send-email-monstr@seznam.cz> <1214483429-32360-10-git-send-email-monstr@seznam.cz> <1214483429-32360-11-git-send-email-monstr@seznam.cz> <1214483429-32360-12-git-send-email-monstr@seznam.cz> <1214483429-32360-13-git-send-email-monstr@seznam.cz> <1214483429-32360-14-git-send-email-monstr@seznam.cz> <1214483429-32360-15-git-send-email-monstr@seznam.cz> <1214483429-32360-16-git-send-email-monstr@seznam.cz> <1214483429-32360-17-git-send-email-monstr@seznam.cz> <1214483429-32360-18-git-send-email-monstr@seznam.cz> <1214483429-32360-19-git-send-email-monstr@seznam.cz> <1214483429-32360-20-git-send-email-monstr@seznam.cz> <1214483429-32360-21-git-send-email-monstr@seznam.cz> <1214483429-32360-22-git-send-email-monstr@seznam.cz> <1214483429-32360-23-git-send-email-monstr@seznam.cz> <1214483429-32360-24-git-send-email-monstr@seznam.cz> <1214483429-32360-25-git-send-email-monstr@seznam.cz> <1214483429-32360-26-git-send-email-monstr@seznam.cz> <1214483429-32360-27-git-send-email-monstr@seznam.cz> <1214483429-32360-28-git-send-email-monstr@seznam.cz> <1214483429-32360-29-git-send-email-monstr@seznam.cz> <1214483429-32360-30-git-send-email-monstr@seznam.cz> <1214483429-32360-31-git-send-email-monstr@seznam.cz> <1214483429-32360-32-git-send-email-monstr@seznam.cz> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6447 Lines: 214 From: Michal Simek Signed-off-by: Michal Simek --- include/asm-microblaze/page.h | 117 ++++++++++++++++++++++++++++++++++++ include/asm-microblaze/segment.h | 39 ++++++++++++ include/asm-microblaze/unaligned.h | 19 ++++++ 3 files changed, 175 insertions(+), 0 deletions(-) create mode 100644 include/asm-microblaze/page.h create mode 100644 include/asm-microblaze/segment.h create mode 100644 include/asm-microblaze/unaligned.h diff --git a/include/asm-microblaze/page.h b/include/asm-microblaze/page.h new file mode 100644 index 0000000..f7ed024 --- /dev/null +++ b/include/asm-microblaze/page.h @@ -0,0 +1,117 @@ +/* + * Copyright (C) 2006 Atmark Techno, Inc. + * + * 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. + */ + +#ifndef _ASM_MICROBLAZE_PAGE_H +#define _ASM_MICROBLAZE_PAGE_H + +#include +#include + +/* PAGE_SHIFT determines the page size */ + +#define PAGE_SHIFT (12) +#define PAGE_SIZE (1UL << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE-1)) + +#ifdef __KERNEL__ + +#include + +#ifndef __ASSEMBLY__ + +#define get_user_page(vaddr) __get_free_page(GFP_KERNEL) +#define free_user_page(page, addr) free_page(addr) + +#define clear_page(pgaddr) memset((pgaddr), 0, PAGE_SIZE) +#define copy_page(to, from) memcpy((to), (from), PAGE_SIZE) + +#define clear_user_page(pgaddr, vaddr, page) memset((pgaddr), 0, PAGE_SIZE) +#define copy_user_page(vto, vfrom, vaddr, topg) \ + memcpy((vto), (vfrom), PAGE_SIZE) + +/* + * These are used to make use of C type-checking.. + */ +typedef struct { unsigned long pte; } pte_t; +typedef struct { unsigned long ste[64]; } pmd_t; +typedef struct { pmd_t pue[1]; } pud_t; +typedef struct { pud_t pge[1]; } pgd_t; +typedef struct { unsigned long pgprot; } pgprot_t; +typedef struct page *pgtable_t; + +#define pte_val(x) ((x).pte) +#define pmd_val(x) ((x).ste[0]) +#define pud_val(x) ((x).pue[0]) +#define pgd_val(x) ((x).pge[0]) +#define pgprot_val(x) ((x).pgprot) + +#define __pte(x) ((pte_t) { (x) }) +#define __pmd(x) ((pmd_t) { (x) }) +#define __pgd(x) ((pgd_t) { (x) }) +#define __pgprot(x) ((pgprot_t) { (x) }) + +/* align addr on a size boundary - adjust address up/down if needed */ +#define _ALIGN_UP(addr, size) (((addr)+((size)-1))&(~((size)-1))) +#define _ALIGN_DOWN(addr, size) ((addr)&(~((size)-1))) + +/* align addr on a size boundary - adjust address up if needed */ +#define _ALIGN(addr, size) _ALIGN_UP(addr, size) + +/* to align the pointer to the (next) page boundary */ +#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) + +extern unsigned int __page_offset; +#define PAGE_OFFSET __page_offset + +/** + * Conversions for virtual address, physical address, pfn, and struct + * page are defined in the following files. + * + * virt -+ + * | asm-microblaze/page.h + * phys -+ + * | linux/pfn.h + * pfn -+ + * | asm-generic/memory_model.h + * page -+ + * + */ + +extern unsigned long max_low_pfn; +extern unsigned long min_low_pfn; +extern unsigned long max_pfn; + +#define __pa(vaddr) ((unsigned long) (vaddr)) +#define __va(paddr) ((void *) (paddr)) + +#define phys_to_pfn(phys) (PFN_DOWN(phys)) +#define pfn_to_phys(pfn) (PFN_PHYS(pfn)) + +#define virt_to_pfn(vaddr) (phys_to_pfn((__pa(vaddr)))) +#define pfn_to_virt(pfn) __va(pfn_to_phys((pfn))) + +#define virt_to_page(vaddr) (pfn_to_page(virt_to_pfn(vaddr))) +#define page_to_virt(page) (pfn_to_virt(page_to_pfn(page))) + +#define page_to_phys(page) (pfn_to_phys(page_to_pfn(page))) +#define page_to_bus(page) (page_to_phys(page)) +#define phys_to_page(paddr) (pfn_to_page(phys_to_pfn(paddr))) + +#define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_mapnr) +#define virt_addr_valid(vaddr) (pfn_valid(virt_to_pfn(vaddr))) + +#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT) + +#endif /* __ASSEMBLY__ */ + +#endif /* __KERNEL__ */ + +#include +#include + +#endif /* _ASM_MICROBLAZE_PAGE_H */ diff --git a/include/asm-microblaze/segment.h b/include/asm-microblaze/segment.h new file mode 100644 index 0000000..670a099 --- /dev/null +++ b/include/asm-microblaze/segment.h @@ -0,0 +1,39 @@ +/* + * Copyright (C) 2006 Atmark Techno, Inc. + * + * 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. + */ + +#ifndef _ASM_MICROBLAZE_SEGMENT_H +#define _ASM_MICROBLAZE_SEGMENT_H + +#ifndef __ASSEMBLY__ + +typedef struct { + unsigned long seg; +} mm_segment_t; + +/* + * The fs value determines whether argument validity checking should be + * performed or not. If get_fs() == USER_DS, checking is performed, with + * get_fs() == KERNEL_DS, checking is bypassed. + * + * For historical reasons, these macros are grossly misnamed. + * + * For non-MMU arch like Microblaze, KERNEL_DS and USER_DS is equal. + */ +#define KERNEL_DS ((mm_segment_t){0}) +#define USER_DS KERNEL_DS + +#define get_ds() (KERNEL_DS) +#define get_fs() (current_thread_info()->addr_limit) +#define set_fs(x) \ + do { current_thread_info()->addr_limit = (x); } while (0) + +#define segment_eq(a, b) ((a).seg == (b).seg) + +#endif /* __ASSEMBLY__ */ + +#endif /* _ASM_MICROBLAZE_SEGMENT_H */ diff --git a/include/asm-microblaze/unaligned.h b/include/asm-microblaze/unaligned.h new file mode 100644 index 0000000..ad8bd76 --- /dev/null +++ b/include/asm-microblaze/unaligned.h @@ -0,0 +1,19 @@ +/* + * Copyright (C) 2008 Michal Simek + * Copyright (C) 2006 Atmark Techno, Inc. + * + * 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. + */ + +#ifndef _ASM_MICROBLAZE_UNALIGNED_H +#define _ASM_MICROBLAZE_UNALIGNED_H + +#include +#include + +#define get_unaligned __get_unaligned_be +#define put_unaligned __put_unaligned_be + +#endif /* _ASM_MICROBLAZE_UNALIGNED_H */ -- 1.5.4.GIT -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/