xref: /freebsd/sys/arm64/include/pmc_mdep.h (revision dd4f32ae62426a10a84b4322756d82c06c202c4e)
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 #define	PMC_MDEP_CLASS_INDEX_DMC620_CD2 2
34 #define	PMC_MDEP_CLASS_INDEX_DMC620_C	3
35 #define	PMC_MDEP_CLASS_INDEX_CMN600 	4
36 /*
37  * On the ARMv8 platform we support the following PMCs.
38  *
39  * ARMV8	ARM Cortex-A53/57/72 processors
40  */
41 #include <dev/hwpmc/hwpmc_arm64.h>
42 #include <dev/hwpmc/hwpmc_cmn600.h>
43 #include <dev/hwpmc/hwpmc_dmc620.h>
44 #include <dev/hwpmc/pmu_dmc620_reg.h>
45 #include <machine/cmn600_reg.h>
46 
47 union pmc_md_op_pmcallocate {
48 	struct {
49 		uint32_t	pm_md_config;
50 		uint32_t	pm_md_flags;
51 #define	PM_MD_RAW_EVENT		0x1
52 	};
53 	struct pmc_md_cmn600_pmu_op_pmcallocate	pm_cmn600;
54 	struct pmc_md_dmc620_pmu_op_pmcallocate	pm_dmc620;
55 	uint64_t		__pad[4];
56 };
57 
58 /* Logging */
59 #define	PMCLOG_READADDR		PMCLOG_READ64
60 #define	PMCLOG_EMITADDR		PMCLOG_EMIT64
61 
62 #ifdef	_KERNEL
63 union pmc_md_pmc {
64 	struct pmc_md_arm64_pmc		pm_arm64;
65 	struct pmc_md_cmn600_pmc	pm_cmn600;
66 	struct pmc_md_dmc620_pmc	pm_dmc620;
67 };
68 
69 #define	PMC_IN_KERNEL_STACK(va)	kstack_contains(curthread, (va), sizeof(va))
70 #define	PMC_IN_KERNEL(va)	INKERNEL((va))
71 #define	PMC_IN_USERSPACE(va)	((va) <= VM_MAXUSER_ADDRESS)
72 #define	PMC_TRAPFRAME_TO_PC(TF)	((TF)->tf_elr)
73 #define	PMC_TRAPFRAME_TO_FP(TF)	((TF)->tf_x[29])
74 
75 /*
76  * Prototypes
77  */
78 struct pmc_mdep *pmc_arm64_initialize(void);
79 void	pmc_arm64_finalize(struct pmc_mdep *_md);
80 
81 /* Optional class for CMN-600 controler's PMU. */
82 int pmc_cmn600_initialize(struct pmc_mdep *md);
83 void	pmc_cmn600_finalize(struct pmc_mdep *_md);
84 int pmc_cmn600_nclasses(void);
85 
86 /* Optional class for DMC-620 controler's PMU. */
87 int pmc_dmc620_initialize_cd2(struct pmc_mdep *md);
88 void	pmc_dmc620_finalize_cd2(struct pmc_mdep *_md);
89 int pmc_dmc620_initialize_c(struct pmc_mdep *md);
90 void	pmc_dmc620_finalize_c(struct pmc_mdep *_md);
91 int pmc_dmc620_nclasses(void);
92 
93 #endif /* _KERNEL */
94 
95 #endif /* !_MACHINE_PMC_MDEP_H_ */
96