[OpenSPARC-T2-SAM] / hypervisor / src / common / include / traptable.h

/*
* ========== Copyright Header Begin ==========================================
*
* Hypervisor Software File: traptable.h
* 
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
* 
*  - Do no alter or remove copyright notices
* 
*  - Redistribution and use of this software in source and binary forms, with 
*    or without modification, are permitted provided that the following 
*    conditions are met: 
* 
*  - Redistribution of source code must retain the above copyright notice, 
*    this list of conditions and the following disclaimer.
* 
*  - Redistribution in binary form must reproduce the above copyright notice,
*    this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution. 
* 
*    Neither the name of Sun Microsystems, Inc. or the names of contributors 
* may be used to endorse or promote products derived from this software 
* without specific prior written permission. 
* 
*     This software is provided "AS IS," without a warranty of any kind. 
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, 
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A 
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN 
* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR 
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR 
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN 
* OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR 
* FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE 
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, 
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF 
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
* 
* You acknowledge that this software is not designed, licensed or
* intended for use in the design, construction, operation or maintenance of
* any nuclear facility. 
* 
* ========== Copyright Header End ============================================
*/
/*
 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _TRAPTABLE_H
#define	_TRAPTABLE_H

#pragma ident	"@(#)traptable.h	1.1	07/05/03 SMI"

#ifdef __cplusplus
extern "C" {
#endif

#include <platform/traptable.h>

/* BEGIN CSTYLED */

#define	TRAP_ALIGN_SIZE		32
#define	TRAP_ALIGN		.align TRAP_ALIGN_SIZE
#define	TRAP_ALIGN_BIG		.align (TRAP_ALIGN_SIZE * 4)


#define	TRAP(ttnum, action) \
	.global	ttnum		;\
	ttnum:			;\
	action			;\
	TRAP_ALIGN

#define	TRAP_NOALIGN(ttnum, action) \
	.global	ttnum		;\
	ttnum:			;\
	action			;\

#define	BIGTRAP(ttnum, action) \
	.global	ttnum		;\
	ttnum:			;\
	action			;\
	TRAP_ALIGN_BIG

#define	GOTO(label)		\
	.global	label		;\
	ba,a	label		;\
	.empty

#define NOT	GOTO(badtrap)
#define	NOT_BIG	NOT NOT NOT NOT
#define	RED	NOT

/*
 * Note: First NOP instruction is for delay slot for preceding
 *	 HCALL() trap table entry
 */
#define	HCALL_BAD			\
	nop				;\
	mov	EBADTRAP, %o0		;\
	done

/*
 * First instruction of GUEST_STRUCT() is safe in delay slot
 * for subsequent HCALL() trap entry
 */
#define	HCALL(idx)					\
	GUEST_STRUCT(%g1)				;\
	ldx	[%g1 + GUEST_HCALL_TABLE], %g1		;\
	set	(idx * API_ENTRY_SIZE), %g2		;\
	ldx	[%g1 + %g2], %g1			;\
	jmp	%g1				

/*
 * Basic register window handling
 */
#define	CLEAN_WINDOW                                            \
        rdpr %cleanwin, %l0; inc %l0; wrpr %l0, %cleanwin       ;\
        clr %l0; clr %l1; clr %l2; clr %l3                      ;\
        clr %l4; clr %l5; clr %l6; clr %l7                      ;\
        clr %o0; clr %o1; clr %o2; clr %o3                      ;\
        clr %o4; clr %o5; clr %o6; clr %o7                      ;\
        retry

/*
 * FIXME:
 * We dont need the 32bit stack handling here since the HV is 64 bit only.
 * could and prob. should use the extra instructions to check for
 * strand stack over and under-runs for safety.
 */
#define SPILL_WINDOW						\
	andcc	%o6, 1, %g0					;\
	be,pt	%xcc, 0f					;\
	wr	%g0, 0x80, %asi					;\
	stxa	%l0, [%o6+V9BIAS64+(0*8)]%asi			;\
	stxa	%l1, [%o6+V9BIAS64+(1*8)]%asi			;\
	stxa	%l2, [%o6+V9BIAS64+(2*8)]%asi			;\
	stxa	%l3, [%o6+V9BIAS64+(3*8)]%asi			;\
	stxa	%l4, [%o6+V9BIAS64+(4*8)]%asi			;\
	stxa	%l5, [%o6+V9BIAS64+(5*8)]%asi			;\
	stxa	%l6, [%o6+V9BIAS64+(6*8)]%asi			;\
	stxa	%l7, [%o6+V9BIAS64+(7*8)]%asi			;\
	stxa	%i0, [%o6+V9BIAS64+(8*8)]%asi			;\
	stxa	%i1, [%o6+V9BIAS64+(9*8)]%asi			;\
	stxa	%i2, [%o6+V9BIAS64+(10*8)]%asi			;\
	stxa	%i3, [%o6+V9BIAS64+(11*8)]%asi			;\
	stxa	%i4, [%o6+V9BIAS64+(12*8)]%asi			;\
	stxa	%i5, [%o6+V9BIAS64+(13*8)]%asi			;\
	stxa	%i6, [%o6+V9BIAS64+(14*8)]%asi			;\
	stxa	%i7, [%o6+V9BIAS64+(15*8)]%asi			;\
	ba	1f						;\
	nop							;\
0:	srl	%o6, 0, %o6					;\
	stda	%i0, [%o6+(0*8)] %asi				;\
	stda	%i2, [%o6+(1*8)] %asi				;\
	stda	%i4, [%o6+(2*8)] %asi				;\
	stda	%i6, [%o6+(3*8)] %asi				;\
	stda	%l0, [%o6+(4*8)] %asi				;\
	stda	%l2, [%o6+(5*8)] %asi				;\
	stda	%l4, [%o6+(6*8)] %asi				;\
	stda	%l6, [%o6+(7*8)] %asi				;\
1:	saved							;\
	retry

#define FILL_WINDOW						\
	andcc	%o6, 1, %g0					;\
	be,pt	%xcc, 0f					;\
	wr	%g0, 0x80, %asi					;\
	ldxa	[%o6+V9BIAS64+(0*8)]%asi, %l0 			;\
	ldxa	[%o6+V9BIAS64+(1*8)]%asi, %l1 			;\
	ldxa	[%o6+V9BIAS64+(2*8)]%asi, %l2 			;\
	ldxa	[%o6+V9BIAS64+(3*8)]%asi, %l3 			;\
	ldxa	[%o6+V9BIAS64+(4*8)]%asi, %l4 			;\
	ldxa	[%o6+V9BIAS64+(5*8)]%asi, %l5 			;\
	ldxa	[%o6+V9BIAS64+(6*8)]%asi, %l6 			;\
	ldxa	[%o6+V9BIAS64+(7*8)]%asi, %l7 			;\
	ldxa	[%o6+V9BIAS64+(8*8)]%asi, %i0 			;\
	ldxa	[%o6+V9BIAS64+(9*8)]%asi, %i1 			;\
	ldxa	[%o6+V9BIAS64+(10*8)]%asi, %i2 			;\
	ldxa	[%o6+V9BIAS64+(11*8)]%asi, %i3 			;\
	ldxa	[%o6+V9BIAS64+(12*8)]%asi, %i4 			;\
	ldxa	[%o6+V9BIAS64+(13*8)]%asi, %i5 			;\
	ldxa	[%o6+V9BIAS64+(14*8)]%asi, %i6 			;\
	ldxa	[%o6+V9BIAS64+(15*8)]%asi, %i7 			;\
	ba	1f						;\
	nop							;\
0:	srl	%o6, 0, %o6					;\
	ldda	[%o6+(0*8)] %asi, %i0				;\
	ldda	[%o6+(1*8)] %asi, %i2				;\
	ldda	[%o6+(2*8)] %asi, %i4				;\
	ldda	[%o6+(3*8)] %asi, %i6				;\
	ldda	[%o6+(4*8)] %asi, %l0				;\
	ldda	[%o6+(5*8)] %asi, %l2				;\
	ldda	[%o6+(6*8)] %asi, %l4				;\
	ldda	[%o6+(7*8)] %asi, %l6				;\
1:	restored						;\
	retry

#define	POR							\
	.global	start_master					;\
	ba,a	start_master					;\
	nop; nop; nop						;\
	.global	start_slave					;\
	ba,a	start_slave					;\
	.empty
	
/*
 * Trap-trace layer trap table.
 */

#define LINK(sym)			 \
	CLEAR_INJECTOR_REG		;\
	rd	%pc, %g7		;\
	ba	sym			;\
	sub	%g7, SIZEOF_CLEAR_INJECTOR_REG, %g7

#define NOTRACE				 		 \
	ba,a	(htraptable+(.-htraptracetable))	;\
	 nop
	
#define	TTRACE(unused, action)		 \
	action				;\
	TRAP_ALIGN

#define	BIG_TTRACE(unused, action)	 \
	action				;\
	TRAP_ALIGN_BIG

#define TTRACE_EXIT(pc, scr1)				 \
	set	(htraptracetable - htraptable), scr1	;\
	neg	scr1					;\
	jmp	pc + scr1				;\
	nop

/* END CSTYLED */

#ifdef __cplusplus
}
#endif

#endif /* _TRAPTABLE_H */
Commit	Line	Data
920dae64 AT	1	/*
	2	* ========== Copyright Header Begin ==========================================
	3	*
	4	* Hypervisor Software File: traptable.h
	5	*
	6	* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
	7	*
	8	* - Do no alter or remove copyright notices
	9	*
	10	* - Redistribution and use of this software in source and binary forms, with
	11	* or without modification, are permitted provided that the following
	12	* conditions are met:
	13	*
	14	* - Redistribution of source code must retain the above copyright notice,
	15	* this list of conditions and the following disclaimer.
	16	*
	17	* - Redistribution in binary form must reproduce the above copyright notice,
	18	* this list of conditions and the following disclaimer in the
	19	* documentation and/or other materials provided with the distribution.
	20	*
	21	* Neither the name of Sun Microsystems, Inc. or the names of contributors
	22	* may be used to endorse or promote products derived from this software
	23	* without specific prior written permission.
	24	*
	25	* This software is provided "AS IS," without a warranty of any kind.
	26	* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
	27	* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
	28	* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
	29	* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
	30	* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
	31	* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN
	32	* OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR
	33	* FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
	34	* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
	35	* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
	36	* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
	37	*
	38	* You acknowledge that this software is not designed, licensed or
	39	* intended for use in the design, construction, operation or maintenance of
	40	* any nuclear facility.
	41	*
	42	* ========== Copyright Header End ============================================
	43	*/
	44	/*
	45	* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
	46	* Use is subject to license terms.
	47	*/
	48
	49	#ifndef _TRAPTABLE_H
	50	#define _TRAPTABLE_H
	51
	52	#pragma ident "@(#)traptable.h 1.1 07/05/03 SMI"
	53
	54	#ifdef __cplusplus
	55	extern "C" {
	56	#endif
	57
	58	#include <platform/traptable.h>
	59
	60	/* BEGIN CSTYLED */
	61
	62	#define TRAP_ALIGN_SIZE 32
	63	#define TRAP_ALIGN .align TRAP_ALIGN_SIZE
	64	#define TRAP_ALIGN_BIG .align (TRAP_ALIGN_SIZE * 4)
65
66
67	#define TRAP(ttnum, action) \
68	.global ttnum ;\
69	ttnum: ;\
70	action ;\
71	TRAP_ALIGN
72
73	#define TRAP_NOALIGN(ttnum, action) \
74	.global ttnum ;\
75	ttnum: ;\
76	action ;\
77
78	#define BIGTRAP(ttnum, action) \
79	.global ttnum ;\
80	ttnum: ;\
81	action ;\
82	TRAP_ALIGN_BIG
83
84	#define GOTO(label) \
85	.global label ;\
86	ba,a label ;\
87	.empty
88
89	#define NOT GOTO(badtrap)
90	#define NOT_BIG NOT NOT NOT NOT
91	#define RED NOT
92
93	/*
94	* Note: First NOP instruction is for delay slot for preceding
95	* HCALL() trap table entry
96	*/
97	#define HCALL_BAD \
98	nop ;\
99	mov EBADTRAP, %o0 ;\
100	done
101
102	/*
103	* First instruction of GUEST_STRUCT() is safe in delay slot
104	* for subsequent HCALL() trap entry
105	*/
106	#define HCALL(idx) \
107	GUEST_STRUCT(%g1) ;\
108	ldx [%g1 + GUEST_HCALL_TABLE], %g1 ;\
109	set (idx * API_ENTRY_SIZE), %g2 ;\
110	ldx [%g1 + %g2], %g1 ;\
111	jmp %g1
112
113	/*
114	* Basic register window handling
115	*/
116	#define CLEAN_WINDOW \
117	rdpr %cleanwin, %l0; inc %l0; wrpr %l0, %cleanwin ;\
118	clr %l0; clr %l1; clr %l2; clr %l3 ;\
119	clr %l4; clr %l5; clr %l6; clr %l7 ;\
120	clr %o0; clr %o1; clr %o2; clr %o3 ;\
121	clr %o4; clr %o5; clr %o6; clr %o7 ;\
122	retry
123
124	/*
125	* FIXME:
126	* We dont need the 32bit stack handling here since the HV is 64 bit only.
127	* could and prob. should use the extra instructions to check for
128	* strand stack over and under-runs for safety.
129	*/
130	#define SPILL_WINDOW \
131	andcc %o6, 1, %g0 ;\
132	be,pt %xcc, 0f ;\
133	wr %g0, 0x80, %asi ;\
134	stxa %l0, [%o6+V9BIAS64+(0*8)]%asi ;\
135	stxa %l1, [%o6+V9BIAS64+(1*8)]%asi ;\
136	stxa %l2, [%o6+V9BIAS64+(2*8)]%asi ;\
137	stxa %l3, [%o6+V9BIAS64+(3*8)]%asi ;\
138	stxa %l4, [%o6+V9BIAS64+(4*8)]%asi ;\
139	stxa %l5, [%o6+V9BIAS64+(5*8)]%asi ;\
140	stxa %l6, [%o6+V9BIAS64+(6*8)]%asi ;\
141	stxa %l7, [%o6+V9BIAS64+(7*8)]%asi ;\
142	stxa %i0, [%o6+V9BIAS64+(8*8)]%asi ;\
143	stxa %i1, [%o6+V9BIAS64+(9*8)]%asi ;\
144	stxa %i2, [%o6+V9BIAS64+(10*8)]%asi ;\
145	stxa %i3, [%o6+V9BIAS64+(11*8)]%asi ;\
146	stxa %i4, [%o6+V9BIAS64+(12*8)]%asi ;\
147	stxa %i5, [%o6+V9BIAS64+(13*8)]%asi ;\
148	stxa %i6, [%o6+V9BIAS64+(14*8)]%asi ;\
149	stxa %i7, [%o6+V9BIAS64+(15*8)]%asi ;\
150	ba 1f ;\
151	nop ;\
152	0: srl %o6, 0, %o6 ;\
153	stda %i0, [%o6+(0*8)] %asi ;\
154	stda %i2, [%o6+(1*8)] %asi ;\
155	stda %i4, [%o6+(2*8)] %asi ;\
156	stda %i6, [%o6+(3*8)] %asi ;\
157	stda %l0, [%o6+(4*8)] %asi ;\
158	stda %l2, [%o6+(5*8)] %asi ;\
159	stda %l4, [%o6+(6*8)] %asi ;\
160	stda %l6, [%o6+(7*8)] %asi ;\
161	1: saved ;\
162	retry
163
164	#define FILL_WINDOW \
165	andcc %o6, 1, %g0 ;\
166	be,pt %xcc, 0f ;\
167	wr %g0, 0x80, %asi ;\
168	ldxa [%o6+V9BIAS64+(0*8)]%asi, %l0 ;\
169	ldxa [%o6+V9BIAS64+(1*8)]%asi, %l1 ;\
170	ldxa [%o6+V9BIAS64+(2*8)]%asi, %l2 ;\
171	ldxa [%o6+V9BIAS64+(3*8)]%asi, %l3 ;\
172	ldxa [%o6+V9BIAS64+(4*8)]%asi, %l4 ;\
173	ldxa [%o6+V9BIAS64+(5*8)]%asi, %l5 ;\
174	ldxa [%o6+V9BIAS64+(6*8)]%asi, %l6 ;\
175	ldxa [%o6+V9BIAS64+(7*8)]%asi, %l7 ;\
176	ldxa [%o6+V9BIAS64+(8*8)]%asi, %i0 ;\
177	ldxa [%o6+V9BIAS64+(9*8)]%asi, %i1 ;\
178	ldxa [%o6+V9BIAS64+(10*8)]%asi, %i2 ;\
179	ldxa [%o6+V9BIAS64+(11*8)]%asi, %i3 ;\
180	ldxa [%o6+V9BIAS64+(12*8)]%asi, %i4 ;\
181	ldxa [%o6+V9BIAS64+(13*8)]%asi, %i5 ;\
182	ldxa [%o6+V9BIAS64+(14*8)]%asi, %i6 ;\
183	ldxa [%o6+V9BIAS64+(15*8)]%asi, %i7 ;\
184	ba 1f ;\
185	nop ;\
186	0: srl %o6, 0, %o6 ;\
187	ldda [%o6+(0*8)] %asi, %i0 ;\
188	ldda [%o6+(1*8)] %asi, %i2 ;\
189	ldda [%o6+(2*8)] %asi, %i4 ;\
190	ldda [%o6+(3*8)] %asi, %i6 ;\
191	ldda [%o6+(4*8)] %asi, %l0 ;\
192	ldda [%o6+(5*8)] %asi, %l2 ;\
193	ldda [%o6+(6*8)] %asi, %l4 ;\
194	ldda [%o6+(7*8)] %asi, %l6 ;\
195	1: restored ;\
196	retry
197
198	#define POR \
199	.global start_master ;\
200	ba,a start_master ;\
201	nop; nop; nop ;\
202	.global start_slave ;\
203	ba,a start_slave ;\
204	.empty
205
206	/*
207	* Trap-trace layer trap table.
208	*/
209
210	#define LINK(sym) \
211	CLEAR_INJECTOR_REG ;\
212	rd %pc, %g7 ;\
213	ba sym ;\
214	sub %g7, SIZEOF_CLEAR_INJECTOR_REG, %g7
215
216	#define NOTRACE \
217	ba,a (htraptable+(.-htraptracetable)) ;\
218	nop
219
220	#define TTRACE(unused, action) \
221	action ;\
222	TRAP_ALIGN
223
224	#define BIG_TTRACE(unused, action) \
225	action ;\
226	TRAP_ALIGN_BIG
227
228	#define TTRACE_EXIT(pc, scr1) \
229	set (htraptracetable - htraptable), scr1 ;\
230	neg scr1 ;\
231	jmp pc + scr1 ;\
232	nop
233
234	/* END CSTYLED */
235
236	#ifdef __cplusplus
237	}
238	#endif
239
240	#endif /* _TRAPTABLE_H */