mirror of
https://github.com/torvalds/linux.git
synced 2024-11-08 21:21:47 +00:00
fc10212583
CC arch/ia64/kernel/asm-offsets.s
In file included from include/linux/bitops.h:17,
from include/linux/kernel.h:15,
from include/linux/sched.h:52,
from arch/ia64/kernel/asm-offsets.c:9:
arch/ia64/include/asm/bitops.h: In function 'set_bit':
arch/ia64/include/asm/bitops.h:47: error: implicit declaration of function 'BUILD_BUG_ON'
Obvious inclusion of kernel.h doesn't fix it, because of circular dependencies
involving fls.h and log2(). Fixing the latter requires some serious header surgery,
it seems, so just remove BUILD_BUG_ON for now.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
125 lines
3.9 KiB
C
125 lines
3.9 KiB
C
/******************************************************************************
|
|
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
|
|
* VA Linux Systems Japan K.K.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#ifndef _ASM_IA64_PARAVIRT_PRIVOP_H
|
|
#define _ASM_IA64_PARAVIRT_PRIVOP_H
|
|
|
|
#ifdef CONFIG_PARAVIRT
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#include <linux/types.h>
|
|
#include <asm/kregs.h> /* for IA64_PSR_I */
|
|
|
|
/******************************************************************************
|
|
* replacement of intrinsics operations.
|
|
*/
|
|
|
|
struct pv_cpu_ops {
|
|
void (*fc)(unsigned long addr);
|
|
unsigned long (*thash)(unsigned long addr);
|
|
unsigned long (*get_cpuid)(int index);
|
|
unsigned long (*get_pmd)(int index);
|
|
unsigned long (*getreg)(int reg);
|
|
void (*setreg)(int reg, unsigned long val);
|
|
void (*ptcga)(unsigned long addr, unsigned long size);
|
|
unsigned long (*get_rr)(unsigned long index);
|
|
void (*set_rr)(unsigned long index, unsigned long val);
|
|
void (*set_rr0_to_rr4)(unsigned long val0, unsigned long val1,
|
|
unsigned long val2, unsigned long val3,
|
|
unsigned long val4);
|
|
void (*ssm_i)(void);
|
|
void (*rsm_i)(void);
|
|
unsigned long (*get_psr_i)(void);
|
|
void (*intrin_local_irq_restore)(unsigned long flags);
|
|
};
|
|
|
|
extern struct pv_cpu_ops pv_cpu_ops;
|
|
|
|
extern void ia64_native_setreg_func(int regnum, unsigned long val);
|
|
extern unsigned long ia64_native_getreg_func(int regnum);
|
|
|
|
/************************************************/
|
|
/* Instructions paravirtualized for performance */
|
|
/************************************************/
|
|
|
|
/* mask for ia64_native_ssm/rsm() must be constant.("i" constraing).
|
|
* static inline function doesn't satisfy it. */
|
|
#define paravirt_ssm(mask) \
|
|
do { \
|
|
if ((mask) == IA64_PSR_I) \
|
|
pv_cpu_ops.ssm_i(); \
|
|
else \
|
|
ia64_native_ssm(mask); \
|
|
} while (0)
|
|
|
|
#define paravirt_rsm(mask) \
|
|
do { \
|
|
if ((mask) == IA64_PSR_I) \
|
|
pv_cpu_ops.rsm_i(); \
|
|
else \
|
|
ia64_native_rsm(mask); \
|
|
} while (0)
|
|
|
|
/* returned ip value should be the one in the caller,
|
|
* not in __paravirt_getreg() */
|
|
#define paravirt_getreg(reg) \
|
|
({ \
|
|
unsigned long res; \
|
|
if ((reg) == _IA64_REG_IP) \
|
|
res = ia64_native_getreg(_IA64_REG_IP); \
|
|
else \
|
|
res = pv_cpu_ops.getreg(reg); \
|
|
res; \
|
|
})
|
|
|
|
/******************************************************************************
|
|
* replacement of hand written assembly codes.
|
|
*/
|
|
struct pv_cpu_asm_switch {
|
|
unsigned long switch_to;
|
|
unsigned long leave_syscall;
|
|
unsigned long work_processed_syscall;
|
|
unsigned long leave_kernel;
|
|
};
|
|
void paravirt_cpu_asm_init(const struct pv_cpu_asm_switch *cpu_asm_switch);
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#define IA64_PARAVIRT_ASM_FUNC(name) paravirt_ ## name
|
|
|
|
#else
|
|
|
|
/* fallback for native case */
|
|
#define IA64_PARAVIRT_ASM_FUNC(name) ia64_native_ ## name
|
|
|
|
#endif /* CONFIG_PARAVIRT */
|
|
|
|
/* these routines utilize privilege-sensitive or performance-sensitive
|
|
* privileged instructions so the code must be replaced with
|
|
* paravirtualized versions */
|
|
#define ia64_switch_to IA64_PARAVIRT_ASM_FUNC(switch_to)
|
|
#define ia64_leave_syscall IA64_PARAVIRT_ASM_FUNC(leave_syscall)
|
|
#define ia64_work_processed_syscall \
|
|
IA64_PARAVIRT_ASM_FUNC(work_processed_syscall)
|
|
#define ia64_leave_kernel IA64_PARAVIRT_ASM_FUNC(leave_kernel)
|
|
|
|
#endif /* _ASM_IA64_PARAVIRT_PRIVOP_H */
|