ia64/linux-2.6.18-xen.hg

annotate kernel/extable.c @ 798:b02a90bf5bbc

ACPI: Backport missing part for T-State MSR support

Part of below kernel commit was missed while packporting T-State
support.

commit f79f06ab9f86d7203006d2ec8992ac80df36a34e
Author: Zhao Yakui <yakui.zhao@intel.com>
Date: Thu Nov 15 17:06:36 2007 +0800

ACPI: Enable MSR (FixedHW) support for T-States

Add throttling control via MSR when T-states uses
the FixHW Control Status registers.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

Signed-off-by: Wei Gang <gang.wei@intel.com>
author Keir Fraser <keir.fraser@citrix.com>
date Mon Mar 02 10:53:59 2009 +0000 (2009-03-02)
parents 831230e53067
children
rev   line source
ian@0 1 /* Rewritten by Rusty Russell, on the backs of many others...
ian@0 2 Copyright (C) 2001 Rusty Russell, 2002 Rusty Russell IBM.
ian@0 3
ian@0 4 This program is free software; you can redistribute it and/or modify
ian@0 5 it under the terms of the GNU General Public License as published by
ian@0 6 the Free Software Foundation; either version 2 of the License, or
ian@0 7 (at your option) any later version.
ian@0 8
ian@0 9 This program is distributed in the hope that it will be useful,
ian@0 10 but WITHOUT ANY WARRANTY; without even the implied warranty of
ian@0 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
ian@0 12 GNU General Public License for more details.
ian@0 13
ian@0 14 You should have received a copy of the GNU General Public License
ian@0 15 along with this program; if not, write to the Free Software
ian@0 16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
ian@0 17 */
ian@0 18 #include <linux/module.h>
ian@0 19 #include <linux/init.h>
ian@0 20 #include <asm/uaccess.h>
ian@0 21 #include <asm/sections.h>
ian@0 22
ian@0 23 extern struct exception_table_entry __start___ex_table[];
ian@0 24 extern struct exception_table_entry __stop___ex_table[];
ian@0 25
ian@0 26 /* Sort the kernel's built-in exception table */
ian@0 27 void __init sort_main_extable(void)
ian@0 28 {
ian@0 29 sort_extable(__start___ex_table, __stop___ex_table);
ian@0 30 }
ian@0 31
ian@0 32 /* Given an address, look for it in the exception tables. */
ian@0 33 const struct exception_table_entry *search_exception_tables(unsigned long addr)
ian@0 34 {
ian@0 35 const struct exception_table_entry *e;
ian@0 36
ian@0 37 e = search_extable(__start___ex_table, __stop___ex_table-1, addr);
ian@0 38 if (!e)
ian@0 39 e = search_module_extables(addr);
ian@0 40 return e;
ian@0 41 }
ian@0 42
ian@0 43 int core_kernel_text(unsigned long addr)
ian@0 44 {
ian@0 45 if (addr >= (unsigned long)_stext &&
ian@0 46 addr <= (unsigned long)_etext)
ian@0 47 return 1;
ian@0 48
ian@0 49 if (addr >= (unsigned long)_sinittext &&
ian@0 50 addr <= (unsigned long)_einittext)
ian@0 51 return 1;
ian@0 52 return 0;
ian@0 53 }
ian@0 54
ian@0 55 int __kernel_text_address(unsigned long addr)
ian@0 56 {
ian@0 57 if (core_kernel_text(addr))
ian@0 58 return 1;
ian@0 59 return __module_text_address(addr) != NULL;
ian@0 60 }
ian@0 61
ian@0 62 int kernel_text_address(unsigned long addr)
ian@0 63 {
ian@0 64 if (core_kernel_text(addr))
ian@0 65 return 1;
ian@0 66 return module_text_address(addr) != NULL;
ian@0 67 }