xref: /titanic_41/usr/src/uts/sun4u/sys/machcpuvar.h (revision 8c74a1f9477c04aa8539a84a49aa2bf629c7a14d)
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 (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef	_SYS_MACHCPUVAR_H
27 #define	_SYS_MACHCPUVAR_H
28 
29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
30 
31 #include <sys/intr.h>
32 #include <sys/clock.h>
33 #include <sys/machparam.h>
34 #include <sys/machpcb.h>
35 #include <sys/privregs.h>
36 #include <sys/machlock.h>
37 
38 #ifdef	__cplusplus
39 extern "C" {
40 #endif
41 
42 #ifndef	_ASM
43 
44 #include <sys/obpdefs.h>
45 #include <sys/async.h>
46 #include <sys/fm/protocol.h>
47 
48 /*
49  * CPU state ptl1_panic save.
50  */
51 typedef struct ptl1_trapregs {
52 	uint32_t	ptl1_tl;
53 	uint32_t	ptl1_tt;
54 	uint64_t	ptl1_tstate;
55 	uint64_t	ptl1_tpc;
56 	uint64_t	ptl1_tnpc;
57 } ptl1_trapregs_t;
58 
59 typedef struct ptl1_regs {
60 	ptl1_trapregs_t	ptl1_trap_regs[PTL1_MAXTL];
61 	uint64_t	ptl1_g1;
62 	uint64_t	ptl1_g2;
63 	uint64_t	ptl1_g3;
64 	uint64_t	ptl1_g4;
65 	uint64_t	ptl1_g5;
66 	uint64_t	ptl1_g6;
67 	uint64_t	ptl1_g7;
68 	uint64_t	ptl1_tick;
69 	uint64_t	ptl1_dmmu_sfar;
70 	uint64_t	ptl1_dmmu_sfsr;
71 	uint64_t	ptl1_dmmu_tag_access;
72 	uint64_t	ptl1_immu_sfsr;
73 	uint64_t	ptl1_immu_tag_access;
74 	struct rwindow	ptl1_rwindow[MAXWIN];
75 	uint32_t	ptl1_softint;
76 	uint16_t	ptl1_pstate;
77 	uint8_t		ptl1_pil;
78 	uint8_t		ptl1_cwp;
79 	uint8_t		ptl1_wstate;
80 	uint8_t		ptl1_otherwin;
81 	uint8_t		ptl1_cleanwin;
82 	uint8_t		ptl1_cansave;
83 	uint8_t		ptl1_canrestore;
84 } ptl1_regs_t;
85 
86 typedef struct ptl1_state {
87 	ptl1_regs_t	ptl1_regs;
88 	uint32_t	ptl1_entry_count;
89 	uintptr_t	ptl1_stktop;
90 	ulong_t		ptl1_stk[1];
91 } ptl1_state_t;
92 
93 /*
94  * Machine specific fields of the cpu struct
95  * defined in common/sys/cpuvar.h.
96  */
97 struct	machcpu {
98 	struct machpcb	*mpcb;
99 	uint64_t	mpcb_pa;
100 	int		mutex_ready;
101 	int		in_prom;
102 	int		tl1_hdlr;
103 	uint16_t	divisor;	/* Estar %tick clock ratio */
104 	uint8_t		intrcnt;	/* number of back-to-back interrupts */
105 	u_longlong_t	tmp1;		/* per-cpu tmps */
106 	u_longlong_t	tmp2;		/*  used in trap processing */
107 
108 	struct intr_req intr_pool[INTR_PENDING_MAX];	/* intr pool */
109 	struct intr_req *intr_head[PIL_LEVELS];		/* intr que heads */
110 	struct intr_req *intr_tail[PIL_LEVELS];		/* intr que tails */
111 	int		intr_pool_added;		/* add'l intr pool */
112 	boolean_t	poke_cpu_outstanding;
113 	/*
114 	 * The cpu module allocates a private data structure for the
115 	 * E$ data, which is needed for the specific cpu type.
116 	 */
117 	void		*cpu_private;		/* ptr to cpu private data */
118 	/*
119 	 * per-MMU ctxdom CPU data.
120 	 */
121 	uint_t		cpu_mmu_idx;
122 	struct mmu_ctx	*cpu_mmu_ctxp;
123 
124 	ptl1_state_t	ptl1_state;
125 
126 	uint64_t	pil_high_start[HIGH_LEVELS];	/* high-level intrs */
127 
128 	/*
129 	 * intrstat[][] is used to keep track of ticks used at a given pil
130 	 * level. intrstat[pil][0] is cumulative and exported via kstats.
131 	 * intrstat[pil][1] is used in intr_get_time() and is private.
132 	 * 2-dimensional array improves cache locality.
133 	 */
134 
135 	uint64_t	intrstat[PIL_MAX+1][2];
136 	kthread_t	*startup_thread;
137 };
138 
139 typedef	struct machcpu	machcpu_t;
140 
141 #define	cpu_startup_thread	cpu_m.startup_thread
142 #define	CPU_MMU_IDX(cp)		((cp)->cpu_m.cpu_mmu_idx)
143 #define	CPU_MMU_CTXP(cp)	((cp)->cpu_m.cpu_mmu_ctxp)
144 #define	NINTR_THREADS	(LOCK_LEVEL)	/* number of interrupt threads */
145 
146 /*
147  * Macro to access the "cpu private" data structure.
148  */
149 #define	CPU_PRIVATE(cp)		((cp)->cpu_m.cpu_private)
150 
151 /*
152  * The OpenBoot Standalone Interface supplies the kernel with
153  * implementation dependent parameters through the devinfo/property mechanism
154  */
155 #define	MAXSYSNAME	20
156 
157 /*
158  * Used to indicate busy/idle state of a cpu.
159  * msram field will be set with ECACHE_CPU_MIRROR if we are on
160  * mirrored sram module.
161  */
162 #define	ECACHE_CPU_IDLE		0x0		/* CPU is idle */
163 #define	ECACHE_CPU_BUSY		0x1		/* CPU is busy */
164 #define	ECACHE_CPU_MIRROR 	0x2		/* E$ is mirrored */
165 #define	ECACHE_CPU_NON_MIRROR	0x3		/* E$ is not mirrored */
166 
167 /*
168  * A CPU FRU FMRI string minus the unum component.
169  */
170 #define	CPU_FRU_FMRI		FM_FMRI_SCHEME_HC":///" \
171     FM_FMRI_LEGACY_HC"="
172 
173 struct cpu_node {
174 	char	name[MAXSYSNAME];
175 	char	fru_fmri[sizeof (CPU_FRU_FMRI) + UNUM_NAMLEN];
176 	int	implementation;
177 	int	version;
178 	int	portid;
179 	pnode_t	nodeid;
180 	uint64_t	clock_freq;
181 	uint_t	tick_nsec_scale;
182 	union {
183 		int	dummy;
184 	}	u_info;
185 	int	ecache_size;
186 	int	ecache_linesize;
187 	int	ecache_associativity;
188 	int	ecache_setsize;
189 	ushort_t	itlb_size;
190 	ushort_t	dtlb_size;
191 	int	msram;
192 	uint64_t	device_id;
193 };
194 
195 extern struct cpu_node cpunodes[];
196 
197 #endif	/* _ASM */
198 
199 #ifdef	__cplusplus
200 }
201 #endif
202 
203 #endif	/* _SYS_MACHCPUVAR_H */
204