xref: /titanic_52/usr/src/uts/sun4u/sys/machcpuvar.h (revision e4a2bec7d50838378a9a8d23992ab4a6fa8726ab)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef	_SYS_MACHCPUVAR_H
28 #define	_SYS_MACHCPUVAR_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #include <sys/intr.h>
33 #include <sys/clock.h>
34 #include <sys/machparam.h>
35 #include <sys/machpcb.h>
36 #include <sys/privregs.h>
37 #include <sys/machlock.h>
38 
39 #ifdef	__cplusplus
40 extern "C" {
41 #endif
42 
43 #ifndef	_ASM
44 
45 #include <sys/obpdefs.h>
46 #include <sys/async.h>
47 #include <sys/fm/protocol.h>
48 
49 /*
50  * CPU state ptl1_panic save.
51  */
52 typedef struct ptl1_trapregs {
53 	uint32_t	ptl1_tl;
54 	uint32_t	ptl1_tt;
55 	uint64_t	ptl1_tstate;
56 	uint64_t	ptl1_tpc;
57 	uint64_t	ptl1_tnpc;
58 } ptl1_trapregs_t;
59 
60 typedef struct ptl1_regs {
61 	ptl1_trapregs_t	ptl1_trap_regs[PTL1_MAXTL];
62 	uint64_t	ptl1_g1;
63 	uint64_t	ptl1_g2;
64 	uint64_t	ptl1_g3;
65 	uint64_t	ptl1_g4;
66 	uint64_t	ptl1_g5;
67 	uint64_t	ptl1_g6;
68 	uint64_t	ptl1_g7;
69 	uint64_t	ptl1_tick;
70 	uint64_t	ptl1_dmmu_sfar;
71 	uint64_t	ptl1_dmmu_sfsr;
72 	uint64_t	ptl1_dmmu_tag_access;
73 	uint64_t	ptl1_immu_sfsr;
74 	uint64_t	ptl1_immu_tag_access;
75 	struct rwindow	ptl1_rwindow[MAXWIN];
76 	uint32_t	ptl1_softint;
77 	uint16_t	ptl1_pstate;
78 	uint8_t		ptl1_pil;
79 	uint8_t		ptl1_cwp;
80 	uint8_t		ptl1_wstate;
81 	uint8_t		ptl1_otherwin;
82 	uint8_t		ptl1_cleanwin;
83 	uint8_t		ptl1_cansave;
84 	uint8_t		ptl1_canrestore;
85 } ptl1_regs_t;
86 
87 typedef struct ptl1_state {
88 	ptl1_regs_t	ptl1_regs;
89 	uint32_t	ptl1_entry_count;
90 	uintptr_t	ptl1_stktop;
91 	ulong_t		ptl1_stk[1];
92 } ptl1_state_t;
93 
94 /*
95  * Machine specific fields of the cpu struct
96  * defined in common/sys/cpuvar.h.
97  */
98 struct	machcpu {
99 	struct machpcb	*mpcb;
100 	uint64_t	mpcb_pa;
101 	int		mutex_ready;
102 	int		in_prom;
103 	int		tl1_hdlr;
104 	uint16_t	divisor;	/* Estar %tick clock ratio */
105 	uint8_t		intrcnt;	/* number of back-to-back interrupts */
106 	u_longlong_t	tmp1;		/* per-cpu tmps */
107 	u_longlong_t	tmp2;		/*  used in trap processing */
108 
109 	struct intr_req intr_pool[INTR_PENDING_MAX];	/* intr pool */
110 	struct intr_req *intr_head[PIL_LEVELS];		/* intr que heads */
111 	struct intr_req *intr_tail[PIL_LEVELS];		/* intr que tails */
112 	int		intr_pool_added;		/* add'l intr pool */
113 	boolean_t	poke_cpu_outstanding;
114 	/*
115 	 * The cpu module allocates a private data structure for the
116 	 * E$ data, which is needed for the specific cpu type.
117 	 */
118 	void		*cpu_private;		/* ptr to cpu private data */
119 
120 	ptl1_state_t	ptl1_state;
121 
122 	uint64_t	pil_high_start[HIGH_LEVELS];	/* high-level intrs */
123 
124 	/*
125 	 * intrstat[][] is used to keep track of ticks used at a given pil
126 	 * level. intrstat[pil][0] is cumulative and exported via kstats.
127 	 * intrstat[pil][1] is used in intr_get_time() and is private.
128 	 * 2-dimensional array improves cache locality.
129 	 */
130 
131 	uint64_t	intrstat[PIL_MAX+1][2];
132 	kthread_t	*startup_thread;
133 };
134 
135 typedef	struct machcpu	machcpu_t;
136 
137 #define	cpu_startup_thread	cpu_m.startup_thread
138 
139 /*
140  * Macro to access the "cpu private" data structure.
141  */
142 #define	CPU_PRIVATE(cp)		((cp)->cpu_m.cpu_private)
143 
144 /*
145  * The OpenBoot Standalone Interface supplies the kernel with
146  * implementation dependent parameters through the devinfo/property mechanism
147  */
148 #define	MAXSYSNAME	20
149 
150 /*
151  * Used to indicate busy/idle state of a cpu.
152  * msram field will be set with ECACHE_CPU_MIRROR if we are on
153  * mirrored sram module.
154  */
155 #define	ECACHE_CPU_IDLE		0x0		/* CPU is idle */
156 #define	ECACHE_CPU_BUSY		0x1		/* CPU is busy */
157 #define	ECACHE_CPU_MIRROR 	0x2		/* E$ is mirrored */
158 #define	ECACHE_CPU_NON_MIRROR	0x3		/* E$ is not mirrored */
159 
160 /*
161  * A CPU FRU FMRI string minus the unum component.
162  */
163 #define	CPU_FRU_FMRI		FM_FMRI_SCHEME_HC":///" \
164     FM_FMRI_LEGACY_HC"="
165 
166 struct cpu_node {
167 	char	name[MAXSYSNAME];
168 	char	fru_fmri[sizeof (CPU_FRU_FMRI) + UNUM_NAMLEN];
169 	int	implementation;
170 	int	version;
171 	int	portid;
172 	pnode_t	nodeid;
173 	uint64_t	clock_freq;
174 	uint_t	tick_nsec_scale;
175 	union {
176 		int	dummy;
177 	}	u_info;
178 	int	ecache_size;
179 	int	ecache_linesize;
180 	int	ecache_associativity;
181 	int	ecache_setsize;
182 	ushort_t	itlb_size;
183 	ushort_t	dtlb_size;
184 	int	msram;
185 	uint64_t	device_id;
186 };
187 
188 extern struct cpu_node cpunodes[];
189 
190 #endif	/* _ASM */
191 
192 #ifdef	__cplusplus
193 }
194 #endif
195 
196 #endif	/* _SYS_MACHCPUVAR_H */
197