[OpenSPARC-T2-SAM] / hypervisor / src / greatlakes / common / src / errs_common.s

/*
* ========== Copyright Header Begin ==========================================
*
* Hypervisor Software File: errs_common.s
* 
* 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.
 */

	.ident	"@(#)errs_common.s	1.8	07/05/03 SMI"

#include <sys/asm_linkage.h>
#include <sys/htypes.h>
#include <hypervisor.h>
#include <sparcv9/asi.h>
#include <sun4v/asi.h>
#include <asi.h>

#include <offsets.h>
#include <strand.h>
#include <debug.h>
#include <util.h>
#include <errs_common.h>
#include <svc.h>
#include <abort.h>

/*
 * send_diag_erpt -   send the diag error report. The offset of the error
 * report buffwe is passed in as E_OFF
 *
 * %g1 - erpt 
 * %g2 - ptr to sent flag
 * %g3 - packet size
 * %g7 - return address
 * %g4 - %g6 used and garbbled
 *
 * For service delivery the flag is not cleared until the packet
 * has been received (ACK) by the SP, this ensures that we dont trample
 * on the current report in the sram while the notify packet is being delivered
 */
	ENTRY_NP(send_diag_erpt)
#if defined(CONFIG_FPGA) && defined(CONFIG_SVC)
	CPU_PUSH(%g7, %g4, %g5, %g6)		/* save return addr */
	CPU_PUSH(%g2, %g4, %g5, %g6)		/* save unsent flag ptr */
	ROOT_STRUCT(%g6)
	add	%g6, CONFIG_SRAM_ERPT_BUF_INUSE, %g5
	mov	ERR_BUF_BUSY, %g4
	casx	[%g5], %g0, %g4
	brnz,pn	%g4, 1f				/* buf busy, flag it  */
	nop
	ldx	[%g6 + CONFIG_ERPT_PA], %g2	/* erpt buffer (dest) */
	brz	%g2, 2f				/* no buffer */
	add	%g2, 7, %g2			/* align pa */
	andn	%g2, 7, %g2
	HVCALL(xcopy)				/* send erpt */
	ldx	[%g6 + CONFIG_ERROR_SVCH], %g1 /* error service */
	brz	%g1, 2f				/* skip if no svc */
	add	%g6, CONFIG_ERPT_PA, %g2	/* error present pkt */
	add	%g0, ERPT_SVC_PKT_SIZE, %g3	/* pkt len */
	HVCALL(svc_internal_send)		/* send erpt */
	brnz,a,pt	%g1, 1f
	  ldx	[%g2 + CPU_ROOT], %g6		/* config data */
	CPU_POP(%g4, %g1, %g2, %g3)		/* restore unsent flag ptr */
	st	%g0, [%g4]			/* flag as no need to send */
	CPU_POP(%g7, %g1, %g2, %g3)		/* restore callers return */
	HVRET
1:
	/*
	 * SRAM is busy, flag so it gets sent later
	 * %g6 still contains the ROOT
	 */
	CPU_POP(%g4, %g1, %g2, %g3)
	mov	1, %g3
	st	%g3, [%g4]			/* flag pkt */
	add	%g6, CONFIG_ERRS_TO_SEND, %g6
	ldx	[%g6], %g1
0:	add	%g1, 1, %g3
	casx	[%g6], %g1, %g3
	cmp	%g1, %g3
	bne,a,pn %xcc, 0b
	mov	%g3, %g1
	CPU_POP(%g7, %g1, %g2, %g3)	 /* restore callers return */
	HVRET
2:
	CPU_POP(%g4, %g1, %g2, %g3)	 /* pop unsent flag ptr */
	CPU_POP(%g7, %g1, %g2, %g3)	 /* restore callers return */
	HVRET
#else   /* !(CONFIG_FPGA && CONFIG_SVC) */
	HVRET
#endif  /* CONFIG_FPGA && CONFIG_SVC */
	SET_SIZE(send_diag_erpt)

/*
 * send_diag_erpt_nolock -   send the diag error report. The offset of the error
 * report buffwe is passed in as E_OFF
 *
 * %g1 - erpt 
 * %g2 - ptr to sent flag
 * %g3 - packet size
 * %g7 - return address
 * %g4 - %g6 used and garbbled
 *
 * For service delivery the flag is not cleared until the packet
 * has been received (ACK) by the SP, this ensures that we dont trample
 * on the current report in the sram while the notify packet is being delivered
 */
	ENTRY_NP(send_diag_erpt_nolock)
#ifdef NO_SVC_EREPORTS
	HVRET
#endif
#if defined(CONFIG_FPGA) && defined(CONFIG_SVC)
	CPU_PUSH(%g7, %g4, %g5, %g6)		/* save unsent flag ptr */
	CPU_PUSH(%g2, %g4, %g5, %g6)		/* save return addr */
	ROOT_STRUCT(%g6)
	add	%g6, CONFIG_SRAM_ERPT_BUF_INUSE, %g5
	mov	ERR_BUF_BUSY, %g4
	casx	[%g5], %g0, %g4
	brnz,pn	%g4, 1f				/* buf busy, flag it */
	nop
	ldx	[%g6 + CONFIG_ERPT_PA], %g2	/* erpt buffer (dest) */
	brz	%g2, 2f				/* no buffer */
	add	%g2, 7, %g2			/* align pa */
	andn	%g2, 7, %g2
	HVCALL(xcopy)				/* send erpt */
	ldx	[%g6 + CONFIG_ERROR_SVCH], %g1 /* error service */
	brz	%g1, 2f				/* skip if no svc */
	add	%g6, CONFIG_ERPT_PA, %g2	/* error present pkt */
	add	%g0, ERPT_SVC_PKT_SIZE, %g3	/* pkt len */
	HVCALL(svc_internal_send_nolock)	/* send erpt */
	ROOT_STRUCT(%g6)
	ldx	[%g6 + CONFIG_ERROR_SVCH], %g6	/* error service handle */
	ld	[%g6 + SVC_CTRL_STATE], %g5
	andn	%g5, SVC_FLAGS_RI, %g5
	st	%g5, [%g6 + SVC_CTRL_STATE]	! clear RECV pending
	UNLOCK(%g6, SVC_CTRL_LOCK)
	ROOT_STRUCT(%g6)
	ldx	[%g6 + CONFIG_SVCS], %g6		! svc root
	UNLOCK(%g6, HV_SVC_DATA_LOCK)
	CPU_POP(%g4, %g1, %g2, %g3)
	st	%g0, [%g4]			/* flag as no need to send */
	CPU_POP(%g7, %g1, %g2, %g3)		/* restore callers return */
	HVRET
1:
	/*
	 * SRAM is busy, flag so it gets sent later
	 * %g6 still contains the ROOT
	 */
	CPU_POP(%g4, %g1, %g2, %g3)
	mov	1, %g3
	st	%g3, [%g4]			/* flag pkt */
	add	%g6, CONFIG_ERRS_TO_SEND, %g6
	ldx	[%g6], %g1
0:	add	%g1, 1, %g3
	casx	[%g6], %g1, %g3
	cmp	%g1, %g3
	bne,a,pn %xcc, 0b
	mov	%g3, %g1
	CPU_POP(%g7, %g1, %g2, %g3)		/* restore callers return */

	HVRET
2:
	CPU_POP(%g4, %g1, %g2, %g3)		/* pop unsent flag ptr */
	CPU_POP(%g7, %g1, %g2, %g3)		/* restore callers return */
	HVRET
#else   /* !(CONFIG_FPGA && CONFIG_SVC) */
	HVRET
#endif  /* CONFIG_FPGA && CONFIG_SVC */
	SET_SIZE(send_diag_erpt_nolock)
Commit	Line	Data
920dae64 AT	1	/*
	2	* ========== Copyright Header Begin ==========================================
	3	*
	4	* Hypervisor Software File: errs_common.s
	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	.ident "@(#)errs_common.s 1.8 07/05/03 SMI"
	50
	51	#include <sys/asm_linkage.h>
	52	#include <sys/htypes.h>
	53	#include <hypervisor.h>
	54	#include <sparcv9/asi.h>
	55	#include <sun4v/asi.h>
	56	#include <asi.h>
	57
	58	#include <offsets.h>
	59	#include <strand.h>
	60	#include <debug.h>
	61	#include <util.h>
	62	#include <errs_common.h>
	63	#include <svc.h>
	64	#include <abort.h>
65
66	/*
67	* send_diag_erpt - send the diag error report. The offset of the error
68	* report buffwe is passed in as E_OFF
69	*
70	* %g1 - erpt
71	* %g2 - ptr to sent flag
72	* %g3 - packet size
73	* %g7 - return address
74	* %g4 - %g6 used and garbbled
75	*
76	* For service delivery the flag is not cleared until the packet
77	* has been received (ACK) by the SP, this ensures that we dont trample
78	* on the current report in the sram while the notify packet is being delivered
79	*/
80	ENTRY_NP(send_diag_erpt)
81	#if defined(CONFIG_FPGA) && defined(CONFIG_SVC)
82	CPU_PUSH(%g7, %g4, %g5, %g6) /* save return addr */
83	CPU_PUSH(%g2, %g4, %g5, %g6) /* save unsent flag ptr */
84	ROOT_STRUCT(%g6)
85	add %g6, CONFIG_SRAM_ERPT_BUF_INUSE, %g5
86	mov ERR_BUF_BUSY, %g4
87	casx [%g5], %g0, %g4
88	brnz,pn %g4, 1f /* buf busy, flag it */
89	nop
90	ldx [%g6 + CONFIG_ERPT_PA], %g2 /* erpt buffer (dest) */
91	brz %g2, 2f /* no buffer */
92	add %g2, 7, %g2 /* align pa */
93	andn %g2, 7, %g2
94	HVCALL(xcopy) /* send erpt */
95	ldx [%g6 + CONFIG_ERROR_SVCH], %g1 /* error service */
96	brz %g1, 2f /* skip if no svc */
97	add %g6, CONFIG_ERPT_PA, %g2 /* error present pkt */
98	add %g0, ERPT_SVC_PKT_SIZE, %g3 /* pkt len */
99	HVCALL(svc_internal_send) /* send erpt */
100	brnz,a,pt %g1, 1f
101	ldx [%g2 + CPU_ROOT], %g6 /* config data */
102	CPU_POP(%g4, %g1, %g2, %g3) /* restore unsent flag ptr */
103	st %g0, [%g4] /* flag as no need to send */
104	CPU_POP(%g7, %g1, %g2, %g3) /* restore callers return */
105	HVRET
106	1:
107	/*
108	* SRAM is busy, flag so it gets sent later
109	* %g6 still contains the ROOT
110	*/
111	CPU_POP(%g4, %g1, %g2, %g3)
112	mov 1, %g3
113	st %g3, [%g4] /* flag pkt */
114	add %g6, CONFIG_ERRS_TO_SEND, %g6
115	ldx [%g6], %g1
116	0: add %g1, 1, %g3
117	casx [%g6], %g1, %g3
118	cmp %g1, %g3
119	bne,a,pn %xcc, 0b
120	mov %g3, %g1
121	CPU_POP(%g7, %g1, %g2, %g3) /* restore callers return */
122	HVRET
123	2:
124	CPU_POP(%g4, %g1, %g2, %g3) /* pop unsent flag ptr */
125	CPU_POP(%g7, %g1, %g2, %g3) /* restore callers return */
126	HVRET
127	#else /* !(CONFIG_FPGA && CONFIG_SVC) */
128	HVRET
129	#endif /* CONFIG_FPGA && CONFIG_SVC */
130	SET_SIZE(send_diag_erpt)
131
132	/*
133	* send_diag_erpt_nolock - send the diag error report. The offset of the error
134	* report buffwe is passed in as E_OFF
135	*
136	* %g1 - erpt
137	* %g2 - ptr to sent flag
138	* %g3 - packet size
139	* %g7 - return address
140	* %g4 - %g6 used and garbbled
141	*
142	* For service delivery the flag is not cleared until the packet
143	* has been received (ACK) by the SP, this ensures that we dont trample
144	* on the current report in the sram while the notify packet is being delivered
145	*/
146	ENTRY_NP(send_diag_erpt_nolock)
147	#ifdef NO_SVC_EREPORTS
148	HVRET
149	#endif
150	#if defined(CONFIG_FPGA) && defined(CONFIG_SVC)
151	CPU_PUSH(%g7, %g4, %g5, %g6) /* save unsent flag ptr */
152	CPU_PUSH(%g2, %g4, %g5, %g6) /* save return addr */
153	ROOT_STRUCT(%g6)
154	add %g6, CONFIG_SRAM_ERPT_BUF_INUSE, %g5
155	mov ERR_BUF_BUSY, %g4
156	casx [%g5], %g0, %g4
157	brnz,pn %g4, 1f /* buf busy, flag it */
158	nop
159	ldx [%g6 + CONFIG_ERPT_PA], %g2 /* erpt buffer (dest) */
160	brz %g2, 2f /* no buffer */
161	add %g2, 7, %g2 /* align pa */
162	andn %g2, 7, %g2
163	HVCALL(xcopy) /* send erpt */
164	ldx [%g6 + CONFIG_ERROR_SVCH], %g1 /* error service */
165	brz %g1, 2f /* skip if no svc */
166	add %g6, CONFIG_ERPT_PA, %g2 /* error present pkt */
167	add %g0, ERPT_SVC_PKT_SIZE, %g3 /* pkt len */
168	HVCALL(svc_internal_send_nolock) /* send erpt */
169	ROOT_STRUCT(%g6)
170	ldx [%g6 + CONFIG_ERROR_SVCH], %g6 /* error service handle */
171	ld [%g6 + SVC_CTRL_STATE], %g5
172	andn %g5, SVC_FLAGS_RI, %g5
173	st %g5, [%g6 + SVC_CTRL_STATE] ! clear RECV pending
174	UNLOCK(%g6, SVC_CTRL_LOCK)
175	ROOT_STRUCT(%g6)
176	ldx [%g6 + CONFIG_SVCS], %g6 ! svc root
177	UNLOCK(%g6, HV_SVC_DATA_LOCK)
178	CPU_POP(%g4, %g1, %g2, %g3)
179	st %g0, [%g4] /* flag as no need to send */
180	CPU_POP(%g7, %g1, %g2, %g3) /* restore callers return */
181	HVRET
182	1:
183	/*
184	* SRAM is busy, flag so it gets sent later
185	* %g6 still contains the ROOT
186	*/
187	CPU_POP(%g4, %g1, %g2, %g3)
188	mov 1, %g3
189	st %g3, [%g4] /* flag pkt */
190	add %g6, CONFIG_ERRS_TO_SEND, %g6
191	ldx [%g6], %g1
192	0: add %g1, 1, %g3
193	casx [%g6], %g1, %g3
194	cmp %g1, %g3
195	bne,a,pn %xcc, 0b
196	mov %g3, %g1
197	CPU_POP(%g7, %g1, %g2, %g3) /* restore callers return */
198
199	HVRET
200	2:
201	CPU_POP(%g4, %g1, %g2, %g3) /* pop unsent flag ptr */
202	CPU_POP(%g7, %g1, %g2, %g3) /* restore callers return */
203	HVRET
204	#else /* !(CONFIG_FPGA && CONFIG_SVC) */
205	HVRET
206	#endif /* CONFIG_FPGA && CONFIG_SVC */
207	SET_SIZE(send_diag_erpt_nolock)