| /****************************************************************************** |
| * include/asm-ia64/paravirt_privops.h |
| * |
| * 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) |
| |
| #endif /* __ASSEMBLY__ */ |
| |
| #else |
| |
| /* fallback for native case */ |
| |
| #endif /* CONFIG_PARAVIRT */ |
| |
| #endif /* _ASM_IA64_PARAVIRT_PRIVOP_H */ |