2006-06-26 19:58:14 +08:00
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/*
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* Derived from include/asm-powerpc/iommu.h
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*
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2007-07-21 23:10:50 +08:00
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* Copyright IBM Corporation, 2006-2007
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2006-07-10 23:06:15 +08:00
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*
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* Author: Jon Mason <jdmason@us.ibm.com>
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* Author: Muli Ben-Yehuda <muli@il.ibm.com>
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2006-06-26 19:58:14 +08:00
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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2008-10-23 13:26:29 +08:00
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#ifndef _ASM_X86_CALGARY_H
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#define _ASM_X86_CALGARY_H
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2006-06-26 19:58:14 +08:00
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#include <linux/spinlock.h>
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#include <linux/device.h>
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#include <linux/dma-mapping.h>
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Detach sched.h from mm.h
First thing mm.h does is including sched.h solely for can_do_mlock() inline
function which has "current" dereference inside. By dealing with can_do_mlock()
mm.h can be detached from sched.h which is good. See below, why.
This patch
a) removes unconditional inclusion of sched.h from mm.h
b) makes can_do_mlock() normal function in mm/mlock.c
c) exports can_do_mlock() to not break compilation
d) adds sched.h inclusions back to files that were getting it indirectly.
e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were
getting them indirectly
Net result is:
a) mm.h users would get less code to open, read, preprocess, parse, ... if
they don't need sched.h
b) sched.h stops being dependency for significant number of files:
on x86_64 allmodconfig touching sched.h results in recompile of 4083 files,
after patch it's only 3744 (-8.3%).
Cross-compile tested on
all arm defconfigs, all mips defconfigs, all powerpc defconfigs,
alpha alpha-up
arm
i386 i386-up i386-defconfig i386-allnoconfig
ia64 ia64-up
m68k
mips
parisc parisc-up
powerpc powerpc-up
s390 s390-up
sparc sparc-up
sparc64 sparc64-up
um-x86_64
x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig
as well as my two usual configs.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21 05:22:52 +08:00
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#include <linux/timer.h>
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2006-06-26 19:58:14 +08:00
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#include <asm/types.h>
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struct iommu_table {
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2007-07-21 23:10:50 +08:00
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struct cal_chipset_ops *chip_ops; /* chipset specific funcs */
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2006-06-26 19:58:14 +08:00
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unsigned long it_base; /* mapped address of tce table */
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unsigned long it_hint; /* Hint for next alloc */
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unsigned long *it_map; /* A simple allocation bitmap for now */
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2006-09-26 16:52:31 +08:00
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void __iomem *bbar; /* Bridge BAR */
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u64 tar_val; /* Table Address Register */
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struct timer_list watchdog_timer;
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2006-06-26 19:58:14 +08:00
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spinlock_t it_lock; /* Protects it_map */
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unsigned int it_size; /* Size of iommu table in entries */
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unsigned char it_busno; /* Bus number this table belongs to */
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};
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2007-07-21 23:10:50 +08:00
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struct cal_chipset_ops {
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void (*handle_quirks)(struct iommu_table *tbl, struct pci_dev *dev);
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void (*tce_cache_blast)(struct iommu_table *tbl);
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2007-07-21 23:10:55 +08:00
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void (*dump_error_regs)(struct iommu_table *tbl);
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2007-07-21 23:10:50 +08:00
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};
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2006-06-26 19:58:14 +08:00
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#define TCE_TABLE_SIZE_UNSPECIFIED ~0
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#define TCE_TABLE_SIZE_64K 0
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#define TCE_TABLE_SIZE_128K 1
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#define TCE_TABLE_SIZE_256K 2
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#define TCE_TABLE_SIZE_512K 3
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#define TCE_TABLE_SIZE_1M 4
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#define TCE_TABLE_SIZE_2M 5
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#define TCE_TABLE_SIZE_4M 6
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#define TCE_TABLE_SIZE_8M 7
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2006-12-07 09:14:07 +08:00
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extern int use_calgary;
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2006-06-26 19:58:14 +08:00
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#ifdef CONFIG_CALGARY_IOMMU
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extern void detect_calgary(void);
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#else
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static inline void detect_calgary(void) { return; }
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#endif
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2008-10-23 13:26:29 +08:00
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#endif /* _ASM_X86_CALGARY_H */
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