xref: /titanic_44/usr/src/uts/sun4u/sys/machcpuvar.h (revision 4a75c0c1ad1b9f32a7a423e1f23a8d23ac800de0)
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 2007 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 	u_longlong_t	tmp3;
108 	u_longlong_t	tmp4;
109 
110 	label_t		*ofd[HIGH_LEVELS];	/* saved pil ofd */
111 	uintptr_t	lfd[HIGH_LEVELS];	/* saved ret PC */
112 	struct on_trap_data *otd[HIGH_LEVELS];	/* saved pil otd */
113 
114 	struct intr_vec	*intr_head[PIL_LEVELS];	/* intr queue heads per pil */
115 	struct intr_vec	*intr_tail[PIL_LEVELS];	/* intr queue tails per pil */
116 	boolean_t	poke_cpu_outstanding;
117 	/*
118 	 * The cpu module allocates a private data structure for the
119 	 * E$ data, which is needed for the specific cpu type.
120 	 */
121 	void		*cpu_private;		/* ptr to cpu private data */
122 	/*
123 	 * per-MMU ctxdom CPU data.
124 	 */
125 	uint_t		cpu_mmu_idx;
126 	struct mmu_ctx	*cpu_mmu_ctxp;
127 
128 	ptl1_state_t	ptl1_state;
129 
130 	uint64_t	pil_high_start[HIGH_LEVELS];	/* high-level intrs */
131 
132 	/*
133 	 * intrstat[][] is used to keep track of ticks used at a given pil
134 	 * level. intrstat[pil][0] is cumulative and exported via kstats.
135 	 * intrstat[pil][1] is used in intr_get_time() and is private.
136 	 * 2-dimensional array improves cache locality.
137 	 */
138 
139 	uint64_t	intrstat[PIL_MAX+1][2];
140 	kthread_t	*startup_thread;
141 };
142 
143 typedef	struct machcpu	machcpu_t;
144 
145 #define	cpu_startup_thread	cpu_m.startup_thread
146 #define	CPU_MMU_IDX(cp)		((cp)->cpu_m.cpu_mmu_idx)
147 #define	CPU_MMU_CTXP(cp)	((cp)->cpu_m.cpu_mmu_ctxp)
148 #define	NINTR_THREADS	(LOCK_LEVEL)	/* number of interrupt threads */
149 
150 /*
151  * Macro to access the "cpu private" data structure.
152  */
153 #define	CPU_PRIVATE(cp)		((cp)->cpu_m.cpu_private)
154 
155 /*
156  * The OpenBoot Standalone Interface supplies the kernel with
157  * implementation dependent parameters through the devinfo/property mechanism
158  */
159 #define	MAXSYSNAME	20
160 
161 /*
162  * Used to indicate busy/idle state of a cpu.
163  * msram field will be set with ECACHE_CPU_MIRROR if we are on
164  * mirrored sram module.
165  */
166 #define	ECACHE_CPU_IDLE		0x0		/* CPU is idle */
167 #define	ECACHE_CPU_BUSY		0x1		/* CPU is busy */
168 #define	ECACHE_CPU_MIRROR 	0x2		/* E$ is mirrored */
169 #define	ECACHE_CPU_NON_MIRROR	0x3		/* E$ is not mirrored */
170 
171 /*
172  * A CPU FRU FMRI string minus the unum component.
173  */
174 #define	CPU_FRU_FMRI		FM_FMRI_SCHEME_HC":///" \
175     FM_FMRI_LEGACY_HC"="
176 
177 struct cpu_node {
178 	char	name[MAXSYSNAME];
179 	char	fru_fmri[sizeof (CPU_FRU_FMRI) + UNUM_NAMLEN];
180 	int	implementation;
181 	int	version;
182 	int	portid;
183 	pnode_t	nodeid;
184 	uint64_t	clock_freq;
185 	uint_t	tick_nsec_scale;
186 	union {
187 		int	dummy;
188 	}	u_info;
189 	int	ecache_size;
190 	int	ecache_linesize;
191 	int	ecache_associativity;
192 	int	ecache_setsize;
193 	ushort_t	itlb_size;
194 	ushort_t	dtlb_size;
195 	int	msram;
196 	uint64_t	device_id;
197 };
198 
199 extern struct cpu_node cpunodes[];
200 
201 #endif	/* _ASM */
202 
203 #ifdef	__cplusplus
204 }
205 #endif
206 
207 #endif	/* _SYS_MACHCPUVAR_H */
208