Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758462AbZFIGy3 (ORCPT ); Tue, 9 Jun 2009 02:54:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757655AbZFIGyQ (ORCPT ); Tue, 9 Jun 2009 02:54:16 -0400 Received: from 219-87-157-179.static.tfn.net.tw ([219.87.157.179]:35664 "EHLO mswedge1.sunplus.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757395AbZFIGyO (ORCPT ); Tue, 9 Jun 2009 02:54:14 -0400 To: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Arnd Bergmann , Andrew Morton , torvalds@linux-foundation.org MIME-Version: 1.0 Subject: [PATCH 08/27] score: create head files fb.h fcntl.h fixmap.h ftrace.h futex.h X-Mailer: Lotus Notes Release 6.5 September 26, 2003 Message-ID: From: liqin.chen@sunplusct.com Date: Tue, 9 Jun 2009 14:27:27 +0800 X-MIMETrack: Serialize by Router on ctmail01/SunplusCT(Release 7.0.3FP1|February 24, 2008) at 2009/06/09 ?? 02:27:28, Serialize complete at 2009/06/09 ?? 02:27:28 Content-Type: text/plain; charset="US-ASCII" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5263 Lines: 177 >From 248ffc1b9fd814a746009a69bec13cbd28e0f332 Mon Sep 17 00:00:00 2001 From: Chen Liqin Date: Tue, 9 Jun 2009 13:43:08 +0800 Signed-off-by: Chen Liqin --- arch/score/include/asm/fb.h | 15 +++++++ arch/score/include/asm/fcntl.h | 6 +++ arch/score/include/asm/fixmap.h | 82 +++++++++++++++++++++++++++++++++++++++ arch/score/include/asm/ftrace.h | 4 ++ arch/score/include/asm/futex.h | 6 +++ 5 files changed, 113 insertions(+), 0 deletions(-) create mode 100644 arch/score/include/asm/fb.h create mode 100644 arch/score/include/asm/fcntl.h create mode 100644 arch/score/include/asm/fixmap.h create mode 100644 arch/score/include/asm/ftrace.h create mode 100644 arch/score/include/asm/futex.h diff --git a/arch/score/include/asm/fb.h b/arch/score/include/asm/fb.h new file mode 100644 index 0000000..6bb525e --- /dev/null +++ b/arch/score/include/asm/fb.h @@ -0,0 +1,15 @@ +#ifndef _ASM_SCORE_FB_H +#define _ASM_SCORE_FB_H + +#include + +static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, + unsigned long off) +{} + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_SCORE_FB_H */ diff --git a/arch/score/include/asm/fcntl.h b/arch/score/include/asm/fcntl.h new file mode 100644 index 0000000..03968a3 --- /dev/null +++ b/arch/score/include/asm/fcntl.h @@ -0,0 +1,6 @@ +#ifndef _ASM_SCORE_FCNTL_H +#define _ASM_SCORE_FCNTL_H + +#include + +#endif /* _ASM_SCORE_FCNTL_H */ diff --git a/arch/score/include/asm/fixmap.h b/arch/score/include/asm/fixmap.h new file mode 100644 index 0000000..ee16766 --- /dev/null +++ b/arch/score/include/asm/fixmap.h @@ -0,0 +1,82 @@ +#ifndef _ASM_SCORE_FIXMAP_H +#define _ASM_SCORE_FIXMAP_H + +#include + +#define PHY_RAM_BASE 0x00000000 +#define PHY_IO_BASE 0x10000000 + +#define VIRTUAL_RAM_BASE 0xa0000000 +#define VIRTUAL_IO_BASE 0xb0000000 + +#define RAM_SPACE_SIZE 0x10000000 +#define IO_SPACE_SIZE 0x10000000 + +/* Kernel unmapped, cached 512MB */ +#define KSEG1 0xa0000000 + +/* + * Here we define all the compile-time 'special' virtual + * addresses. The point is to have a constant address at + * compile time, but to set the physical address only + * in the boot process. We allocate these special addresses + * from the end of virtual memory (0xfffff000) backwards. + * Also this lets us do fail-safe vmalloc(), we + * can guarantee that these special addresses and + * vmalloc()-ed addresses never overlap. + * + * these 'compile-time allocated' memory buffers are + * fixed-size 4k pages. (or larger if used with an increment + * highger than 1) use fixmap_set(idx,phys) to associate + * physical memory with fixmap indices. + * + * TLB entries of such buffers will not be flushed across + * task switches. + */ + +/* + * on UP currently we will have no trace of the fixmap mechanizm, + * no page table allocations, etc. This might change in the + * future, say framebuffers for the console driver(s) could be + * fix-mapped? + */ +enum fixed_addresses { +#define FIX_N_COLOURS 8 + FIX_CMAP_BEGIN, + FIX_CMAP_END = FIX_CMAP_BEGIN + FIX_N_COLOURS, + __end_of_fixed_addresses +}; + +/* + * used by vmalloc.c. + * + * Leave one empty page between vmalloc'ed areas and + * the start of the fixmap, and leave one page empty + * at the top of mem.. + */ +#define FIXADDR_TOP ((unsigned long)(long)(int)0xfefe0000) +#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT) +#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) + +#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT)) +#define __virt_to_fix(x) \ + ((FIXADDR_TOP - ((x) & PAGE_MASK)) >> PAGE_SHIFT) + +extern void __this_fixmap_does_not_exist(void); + +/* + * 'index to address' translation. If anyone tries to use the idx + * directly without tranlation, we catch the bug with a NULL-deference + * kernel oops. Illegal ranges of incoming indices are caught too. + */ +static inline unsigned long fix_to_virt(const unsigned int idx) +{ + return __fix_to_virt(idx); +} + +static inline unsigned long virt_to_fix(const unsigned long vaddr) +{ + return __virt_to_fix(vaddr); +} + +#endif /* _ASM_SCORE_FIXMAP_H */ diff --git a/arch/score/include/asm/ftrace.h b/arch/score/include/asm/ftrace.h new file mode 100644 index 0000000..79d6f10 --- /dev/null +++ b/arch/score/include/asm/ftrace.h @@ -0,0 +1,4 @@ +#ifndef _ASM_SCORE_FTRACE_H +#define _ASM_SCORE_FTRACE_H + +#endif /* _ASM_SCORE_FTRACE_H */ diff --git a/arch/score/include/asm/futex.h b/arch/score/include/asm/futex.h new file mode 100644 index 0000000..1dca242 --- /dev/null +++ b/arch/score/include/asm/futex.h @@ -0,0 +1,6 @@ +#ifndef _ASM_SCORE_FUTEX_H +#define _ASM_SCORE_FUTEX_H + +#include + +#endif /* _ASM_SCORE_FUTEX_H */ -- 1.6.2 -- 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/