xref: /freebsd/sys/riscv/include/pmc_mdep.h (revision d3d381b2b194b4d24853e92eecef55f262688d1a)
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_RISCV	1
33 /*
34  * On the RISC-V platform we don't support any PMCs yet.
35  */
36 #include <dev/hwpmc/hwpmc_riscv.h>
37 
38 union pmc_md_op_pmcallocate {
39 	uint64_t		__pad[4];
40 };
41 
42 /* Logging */
43 #define	PMCLOG_READADDR		PMCLOG_READ64
44 #define	PMCLOG_EMITADDR		PMCLOG_EMIT64
45 
46 #ifdef	_KERNEL
47 union pmc_md_pmc {
48 	struct pmc_md_riscv_pmc		pm_riscv;
49 };
50 
51 #define	PMC_IN_KERNEL_STACK(S,START,END)		\
52 	((S) >= (START) && (S) < (END))
53 #define	PMC_IN_KERNEL(va)		INKERNEL((va))
54 #define	PMC_IN_USERSPACE(va)		((va) <= VM_MAXUSER_ADDRESS)
55 #define	PMC_TRAPFRAME_TO_PC(TF)		((TF)->tf_ra)
56 #define	PMC_TRAPFRAME_TO_FP(TF)		(0)	/* stub */
57 
58 /*
59  * Prototypes
60  */
61 struct pmc_mdep *pmc_riscv_initialize(void);
62 void	pmc_riscv_finalize(struct pmc_mdep *_md);
63 #endif /* _KERNEL */
64 
65 #endif /* !_MACHINE_PMC_MDEP_H_ */
66