xref: /freebsd/sys/arm64/include/pmc_mdep.h (revision 994297b01b98816bea1abf45ae4bac1bc69ee7a0)
1 /*-
2  * Copyright (c) 2009 Rui Paulo <rpaulo@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
18  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
22  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
23  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24  * POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef _MACHINE_PMC_MDEP_H_
30 #define	_MACHINE_PMC_MDEP_H_
31 
32 #define	PMC_MDEP_CLASS_INDEX_ARMV8	1
33 /*
34  * On the ARMv8 platform we support the following PMCs.
35  *
36  * ARMV8	ARM Cortex-A53/57/72 processors
37  */
38 #include <dev/hwpmc/hwpmc_arm64.h>
39 
40 union pmc_md_op_pmcallocate {
41 	struct {
42 		uint32_t	pm_md_config;
43 		uint32_t	pm_md_flags;
44 #define	PM_MD_RAW_EVENT		0x1
45 	};
46 	uint64_t		__pad[4];
47 };
48 
49 /* Logging */
50 #define	PMCLOG_READADDR		PMCLOG_READ64
51 #define	PMCLOG_EMITADDR		PMCLOG_EMIT64
52 
53 #ifdef	_KERNEL
54 union pmc_md_pmc {
55 	struct pmc_md_arm64_pmc		pm_arm64;
56 };
57 
58 #define	PMC_IN_KERNEL_STACK(S,START,END)		\
59 	((S) >= (START) && (S) < (END))
60 #define	PMC_IN_KERNEL(va)	INKERNEL((va))
61 #define	PMC_IN_USERSPACE(va) ((va) <= VM_MAXUSER_ADDRESS)
62 #define	PMC_TRAPFRAME_TO_PC(TF)		((TF)->tf_elr)
63 #define	PMC_TRAPFRAME_TO_FP(TF)		((TF)->tf_x[29])
64 
65 /*
66  * Prototypes
67  */
68 struct pmc_mdep *pmc_arm64_initialize(void);
69 void	pmc_arm64_finalize(struct pmc_mdep *_md);
70 #endif /* _KERNEL */
71 
72 #endif /* !_MACHINE_PMC_MDEP_H_ */
73