92 lines
2.8 KiB
C
92 lines
2.8 KiB
C
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/******************************************************************************
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* include/asm-ia64/paravirt_privops.h
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*
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* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
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* VA Linux Systems Japan K.K.
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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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*/
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#ifndef _ASM_IA64_PARAVIRT_PRIVOP_H
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#define _ASM_IA64_PARAVIRT_PRIVOP_H
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#ifdef CONFIG_PARAVIRT
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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#include <asm/kregs.h> /* for IA64_PSR_I */
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/******************************************************************************
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* replacement of intrinsics operations.
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*/
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struct pv_cpu_ops {
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void (*fc)(unsigned long addr);
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unsigned long (*thash)(unsigned long addr);
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unsigned long (*get_cpuid)(int index);
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unsigned long (*get_pmd)(int index);
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unsigned long (*getreg)(int reg);
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void (*setreg)(int reg, unsigned long val);
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void (*ptcga)(unsigned long addr, unsigned long size);
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unsigned long (*get_rr)(unsigned long index);
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void (*set_rr)(unsigned long index, unsigned long val);
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void (*set_rr0_to_rr4)(unsigned long val0, unsigned long val1,
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unsigned long val2, unsigned long val3,
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unsigned long val4);
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void (*ssm_i)(void);
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void (*rsm_i)(void);
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unsigned long (*get_psr_i)(void);
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void (*intrin_local_irq_restore)(unsigned long flags);
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};
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extern struct pv_cpu_ops pv_cpu_ops;
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extern void ia64_native_setreg_func(int regnum, unsigned long val);
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extern unsigned long ia64_native_getreg_func(int regnum);
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/************************************************/
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/* Instructions paravirtualized for performance */
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/************************************************/
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/* mask for ia64_native_ssm/rsm() must be constant.("i" constraing).
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* static inline function doesn't satisfy it. */
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#define paravirt_ssm(mask) \
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do { \
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if ((mask) == IA64_PSR_I) \
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pv_cpu_ops.ssm_i(); \
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else \
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ia64_native_ssm(mask); \
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} while (0)
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#define paravirt_rsm(mask) \
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do { \
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if ((mask) == IA64_PSR_I) \
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pv_cpu_ops.rsm_i(); \
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else \
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ia64_native_rsm(mask); \
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} while (0)
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#endif /* __ASSEMBLY__ */
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#else
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/* fallback for native case */
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#endif /* CONFIG_PARAVIRT */
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#endif /* _ASM_IA64_PARAVIRT_PRIVOP_H */
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