+/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Taken from the linux kernel file of the same name
*
* (C) Copyright 2012
* Graeme Russ, <graeme.russ@gmail.com>
- *
- * 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_X86_MSR_H
#ifdef __KERNEL__
-#include <asm/errno.h>
+#include <linux/errno.h>
struct msr {
union {
#define wrmsrl(msr, val) \
native_write_msr((msr), (u32)((u64)(val)), (u32)((u64)(val) >> 32))
+static inline void msr_clrsetbits_64(unsigned msr, u64 clear, u64 set)
+{
+ u64 val;
+
+ val = native_read_msr(msr);
+ val &= ~clear;
+ val |= set;
+ wrmsrl(msr, val);
+}
+
+static inline void msr_setbits_64(unsigned msr, u64 set)
+{
+ u64 val;
+
+ val = native_read_msr(msr);
+ val |= set;
+ wrmsrl(msr, val);
+}
+
+static inline void msr_clrbits_64(unsigned msr, u64 clear)
+{
+ u64 val;
+
+ val = native_read_msr(msr);
+ val &= ~clear;
+ wrmsrl(msr, val);
+}
+
/* rdmsr with exception handling */
#define rdmsr_safe(msr, p1, p2) \
({ \
return native_wrmsr_safe_regs(regs);
}
+typedef struct msr_t {
+ uint32_t lo;
+ uint32_t hi;
+} msr_t;
+
+static inline struct msr_t msr_read(unsigned msr_num)
+{
+ struct msr_t msr;
+
+ rdmsr(msr_num, msr.lo, msr.hi);
+
+ return msr;
+}
+
+static inline void msr_write(unsigned msr_num, msr_t msr)
+{
+ wrmsr(msr_num, msr.lo, msr.hi);
+}
+
#define rdtscl(low) \
((low) = (u32)__native_read_tsc())
struct msr *msrs_alloc(void);
void msrs_free(struct msr *msrs);
-#ifdef CONFIG_SMP
-int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
-int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
-void rdmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs);
-void wrmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs);
-int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
-int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
-int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8]);
-int wrmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8]);
-
-#endif /* CONFIG_SMP */
#endif /* __KERNEL__ */
#endif /* __ASSEMBLY__ */
#endif /* _ASM_X86_MSR_H */