xref: /titanic_52/usr/src/uts/sun4v/ml/hcall.s (revision 1a7c1b724419d3cb5fa6eea75123c6b2060ba31b)
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#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29/*
30 * Hypervisor calls
31 */
32
33#include <sys/asm_linkage.h>
34#include <sys/machasi.h>
35#include <sys/machparam.h>
36#include <sys/hypervisor_api.h>
37#include <io/px/px_ioapi.h>
38
39#if defined(lint) || defined(__lint)
40
41/*ARGSUSED*/
42int64_t
43hv_cnputchar(uint8_t ch)
44{ return (0); }
45
46/*ARGSUSED*/
47int64_t
48hv_cngetchar(uint8_t *ch)
49{ return (0); }
50
51/*ARGSUSED*/
52uint64_t
53hv_tod_get(uint64_t *seconds)
54{ return (0); }
55
56/*ARGSUSED*/
57uint64_t
58hv_tod_set(uint64_t seconds)
59{ return (0);}
60
61/*ARGSUSED*/
62uint64_t
63hv_mmu_map_perm_addr(void *vaddr, int ctx, uint64_t tte, int flags)
64{ return (0); }
65
66/*ARGSUSED*/
67uint64_t
68hv_mmu_unmap_perm_addr(void *vaddr, int ctx, int flags)
69{ return (0); }
70
71/*ARGSUSED*/
72uint64_t
73hv_set_ctx0(uint64_t ntsb_descriptor, uint64_t desc_ra)
74{ return (0); }
75
76/*ARGSUSED*/
77uint64_t
78hv_set_ctxnon0(uint64_t ntsb_descriptor, uint64_t desc_ra)
79{ return (0); }
80
81#ifdef SET_MMU_STATS
82/*ARGSUSED*/
83uint64_t
84hv_mmu_set_stat_area(uint64_t rstatarea, uint64_t size)
85{ return (0); }
86#endif /* SET_MMU_STATS */
87
88/*ARGSUSED*/
89uint64_t
90hv_cpu_qconf(int queue, uint64_t paddr, int size)
91{ return (0); }
92
93/*ARGSUSED*/
94uint64_t
95hvio_config_get(devhandle_t dev_hdl, pci_device_t bdf,
96    pci_config_offset_t off, pci_config_size_t size, pci_cfg_data_t *data_p)
97{ return (0); }
98
99/*ARGSUSED*/
100uint64_t
101hvio_config_put(devhandle_t dev_hdl, pci_device_t bdf,
102    pci_config_offset_t off, pci_config_size_t size, pci_cfg_data_t data)
103{ return (0); }
104
105/*ARGSUSED*/
106uint64_t
107hvio_intr_devino_to_sysino(uint64_t dev_hdl, uint32_t devino, uint64_t *sysino)
108{ return (0); }
109
110/*ARGSUSED*/
111uint64_t
112hvio_intr_getvalid(uint64_t sysino, int *intr_valid_state)
113{ return (0); }
114
115/*ARGSUSED*/
116uint64_t
117hvio_intr_setvalid(uint64_t sysino, int intr_valid_state)
118{ return (0); }
119
120/*ARGSUSED*/
121uint64_t
122hvio_intr_getstate(uint64_t sysino, int *intr_state)
123{ return (0); }
124
125/*ARGSUSED*/
126uint64_t
127hvio_intr_setstate(uint64_t sysino, int intr_state)
128{ return (0); }
129
130/*ARGSUSED*/
131uint64_t
132hvio_intr_gettarget(uint64_t sysino, uint32_t *cpuid)
133{ return (0); }
134
135/*ARGSUSED*/
136uint64_t
137hvio_intr_settarget(uint64_t sysino, uint32_t cpuid)
138{ return (0); }
139
140/*ARGSUSED*/
141uint64_t
142hvio_iommu_map(devhandle_t dev_hdl, tsbid_t tsbid,
143    pages_t pages, io_attributes_t io_attributes,
144    io_page_list_t *io_page_list_p, pages_t *pages_mapped)
145{ return (0); }
146
147/*ARGSUSED*/
148uint64_t
149hvio_iommu_demap(devhandle_t dev_hdl, tsbid_t tsbid,
150    pages_t pages, pages_t *pages_demapped)
151{ return (0); }
152
153/*ARGSUSED*/
154uint64_t
155hvio_iommu_getmap(devhandle_t dev_hdl, tsbid_t tsbid,
156    io_attributes_t *attributes_p, r_addr_t *r_addr_p)
157{ return (0); }
158
159/*ARGSUSED*/
160uint64_t
161hvio_iommu_getbypass(devhandle_t dev_hdl, r_addr_t ra,
162    io_attributes_t io_attributes, io_addr_t *io_addr_p)
163{ return (0); }
164
165/*ARGSUSED*/
166uint64_t
167hvio_peek(devhandle_t dev_hdl, r_addr_t ra, size_t size, uint32_t *status,
168    uint64_t *data_p)
169{ return (0); }
170
171/*ARGSUSED*/
172uint64_t
173hvio_poke(devhandle_t dev_hdl, r_addr_t ra, uint64_t sizes, uint64_t data,
174    r_addr_t ra2, uint32_t *rdbk_status)
175{ return (0); }
176
177/*ARGSUSED*/
178uint64_t
179hvio_dma_sync(devhandle_t dev_hdl, r_addr_t ra, size_t num_bytes,
180    int io_sync_direction, size_t *bytes_synched)
181{ return (0); }
182
183/*ARGSUSED*/
184uint64_t
185hvio_msiq_conf(devhandle_t dev_hdl, msiqid_t msiq_id, r_addr_t ra,
186    uint_t msiq_rec_cnt)
187{ return (0); }
188
189/*ARGSUSED*/
190uint64_t
191hvio_msiq_info(devhandle_t dev_hdl, msiqid_t msiq_id, r_addr_t *r_addr_p,
192    uint_t *msiq_rec_cnt_p)
193{ return (0); }
194
195/*ARGSUSED*/
196uint64_t
197hvio_msiq_getvalid(devhandle_t dev_hdl, msiqid_t msiq_id,
198    pci_msiq_valid_state_t *msiq_valid_state)
199{ return (0); }
200
201/*ARGSUSED*/
202uint64_t
203hvio_msiq_setvalid(devhandle_t dev_hdl, msiqid_t msiq_id,
204    pci_msiq_valid_state_t msiq_valid_state)
205{ return (0); }
206
207/*ARGSUSED*/
208uint64_t
209hvio_msiq_getstate(devhandle_t dev_hdl, msiqid_t msiq_id,
210    pci_msiq_state_t *msiq_state)
211{ return (0); }
212
213/*ARGSUSED*/
214uint64_t
215hvio_msiq_setstate(devhandle_t dev_hdl, msiqid_t msiq_id,
216    pci_msiq_state_t msiq_state)
217{ return (0); }
218
219/*ARGSUSED*/
220uint64_t
221hvio_msiq_gethead(devhandle_t dev_hdl, msiqid_t msiq_id,
222    msiqhead_t *msiq_head)
223{ return (0); }
224
225/*ARGSUSED*/
226uint64_t
227hvio_msiq_sethead(devhandle_t dev_hdl, msiqid_t msiq_id,
228    msiqhead_t msiq_head)
229{ return (0); }
230
231/*ARGSUSED*/
232uint64_t
233hvio_msiq_gettail(devhandle_t dev_hdl, msiqid_t msiq_id,
234    msiqtail_t *msiq_tail)
235{ return (0); }
236
237/*ARGSUSED*/
238uint64_t
239hvio_msi_getmsiq(devhandle_t dev_hdl, msinum_t msi_num,
240    msiqid_t *msiq_id)
241{ return (0); }
242
243/*ARGSUSED*/
244uint64_t
245hvio_msi_setmsiq(devhandle_t dev_hdl, msinum_t msi_num,
246    msiqid_t msiq_id, msi_type_t msitype)
247{ return (0); }
248
249/*ARGSUSED*/
250uint64_t
251hvio_msi_getvalid(devhandle_t dev_hdl, msinum_t msi_num,
252    pci_msi_valid_state_t *msi_valid_state)
253{ return (0); }
254
255/*ARGSUSED*/
256uint64_t
257hvio_msi_setvalid(devhandle_t dev_hdl, msinum_t msi_num,
258    pci_msi_valid_state_t msi_valid_state)
259{ return (0); }
260
261/*ARGSUSED*/
262uint64_t
263hvio_msi_getstate(devhandle_t dev_hdl, msinum_t msi_num,
264    pci_msi_state_t *msi_state)
265{ return (0); }
266
267/*ARGSUSED*/
268uint64_t
269hvio_msi_setstate(devhandle_t dev_hdl, msinum_t msi_num,
270    pci_msi_state_t msi_state)
271{ return (0); }
272
273/*ARGSUSED*/
274uint64_t
275hvio_msg_getmsiq(devhandle_t dev_hdl, pcie_msg_type_t msg_type,
276    msiqid_t *msiq_id)
277{ return (0); }
278
279/*ARGSUSED*/
280uint64_t
281hvio_msg_setmsiq(devhandle_t dev_hdl, pcie_msg_type_t msg_type,
282    msiqid_t msiq_id)
283{ return (0); }
284
285/*ARGSUSED*/
286uint64_t
287hvio_msg_getvalid(devhandle_t dev_hdl, pcie_msg_type_t msg_type,
288    pcie_msg_valid_state_t *msg_valid_state)
289{ return (0); }
290
291/*ARGSUSED*/
292uint64_t
293hvio_msg_setvalid(devhandle_t dev_hdl, pcie_msg_type_t msg_type,
294    pcie_msg_valid_state_t msg_valid_state)
295{ return (0); }
296
297uint64_t
298hv_cpu_yield(void)
299{ return (0); }
300
301/*ARGSUSED*/
302uint64_t
303hv_service_recv(uint64_t s_id, uint64_t buf_pa, uint64_t size,
304    uint64_t *recv_bytes)
305{ return (0); }
306
307/*ARGSUSED*/
308uint64_t
309hv_service_send(uint64_t s_id, uint64_t buf_pa, uint64_t size,
310    uint64_t *send_bytes)
311{ return (0); }
312
313/*ARGSUSED*/
314uint64_t
315hv_service_getstatus(uint64_t s_id, uint64_t *vreg)
316{ return (0); }
317
318/*ARGSUSED*/
319uint64_t
320hv_service_clrstatus(uint64_t s_id, uint64_t bits)
321{ return (0); }
322
323/*ARGSUSED*/
324uint64_t
325hv_cpu_state(uint64_t cpuid, uint64_t *cpu_state)
326{ return (0); }
327
328/*ARGSUSED*/
329uint64_t
330hv_dump_buf_update(uint64_t paddr, uint64_t size, uint64_t *minsize)
331{ return (0); }
332
333/*ARGSUSED*/
334uint64_t
335hv_mem_scrub(uint64_t real_addr, uint64_t length, uint64_t *scrubbed_len)
336{ return (0); }
337
338/*ARGSUSED*/
339uint64_t
340hv_mem_sync(uint64_t real_addr, uint64_t length, uint64_t *flushed_len)
341{ return (0); }
342
343/*ARGSUSED*/
344uint64_t
345hv_ttrace_buf_conf(uint64_t paddr, uint64_t size, uint64_t *size1)
346{ return (0); }
347
348/*ARGSUSED*/
349uint64_t
350hv_ttrace_buf_info(uint64_t *paddr, uint64_t *size)
351{ return (0); }
352
353/*ARGSUSED*/
354uint64_t
355hv_ttrace_enable(uint64_t enable, uint64_t *prev_enable)
356{ return (0); }
357
358/*ARGSUSED*/
359uint64_t
360hv_ttrace_freeze(uint64_t freeze, uint64_t *prev_freeze)
361{ return (0); }
362
363/*ARGSUSED*/
364uint64_t
365hv_mach_desc(uint64_t buffer_ra, uint64_t *buffer_sizep)
366{ return (0); }
367
368/*ARGSUSED*/
369uint64_t
370hv_ncs_request(int cmd, uint64_t realaddr, size_t sz)
371{ return (0); }
372
373#else	/* lint || __lint */
374
375	/*
376	 * %o0 - character
377	 */
378	ENTRY(hv_cnputchar)
379	mov	CONS_WRITE, %o5
380	ta	FAST_TRAP
381	tst	%o0
382	retl
383	movnz	%xcc, -1, %o0
384	SET_SIZE(hv_cnputchar)
385
386	/*
387	 * %o0 pointer to character buffer
388	 * return values:
389	 * 0 success
390	 * hv_errno failure
391	 */
392	ENTRY(hv_cngetchar)
393	mov	%o0, %o2
394	mov	CONS_READ, %o5
395	ta	FAST_TRAP
396	brnz,a	%o0, 1f		! failure, just return error
397	mov	1, %o0
398
399	cmp	%o1, H_BREAK
400	be	1f
401	mov	%o1, %o0
402
403	cmp	%o1, H_HUP
404	be	1f
405	mov	%o1, %o0
406
407	stb	%o1, [%o2]	! success, save character and return 0
408	mov	0, %o0
4091:
410	retl
411	nop
412	SET_SIZE(hv_cngetchar)
413
414	ENTRY(hv_tod_get)
415	mov	%o0, %o4
416	mov	TOD_GET, %o5
417	ta	FAST_TRAP
418	retl
419	  stx	%o1, [%o4]
420	SET_SIZE(hv_tod_get)
421
422	ENTRY(hv_tod_set)
423	mov	TOD_SET, %o5
424	ta	FAST_TRAP
425	retl
426	nop
427	SET_SIZE(hv_tod_set)
428
429	/*
430	 * Map permanent address
431	 * arg0 vaddr (%o0)
432	 * arg1 context (%o1)
433	 * arg2 tte (%o2)
434	 * arg3 flags (%o3)  0x1=d 0x2=i
435	 */
436	ENTRY(hv_mmu_map_perm_addr)
437	mov	MAP_PERM_ADDR, %o5
438	ta	FAST_TRAP
439	retl
440	nop
441	SET_SIZE(hv_mmu_map_perm_addr)
442
443	/*
444	 * Unmap permanent address
445	 * arg0 vaddr (%o0)
446	 * arg1 context (%o1)
447	 * arg2 flags (%o2)  0x1=d 0x2=i
448	 */
449	ENTRY(hv_mmu_unmap_perm_addr)
450	mov	UNMAP_PERM_ADDR, %o5
451	ta	FAST_TRAP
452	retl
453	nop
454	SET_SIZE(hv_mmu_unmap_perm_addr)
455
456	/*
457	 * Set TSB for context 0
458	 * arg0 ntsb_descriptor (%o0)
459	 * arg1 desc_ra (%o1)
460	 */
461	ENTRY(hv_set_ctx0)
462	mov	MMU_TSB_CTX0, %o5
463	ta	FAST_TRAP
464	retl
465	nop
466	SET_SIZE(hv_set_ctx0)
467
468	/*
469	 * Set TSB for context non0
470	 * arg0 ntsb_descriptor (%o0)
471	 * arg1 desc_ra (%o1)
472	 */
473	ENTRY(hv_set_ctxnon0)
474	mov	MMU_TSB_CTXNON0, %o5
475	ta	FAST_TRAP
476	retl
477	nop
478	SET_SIZE(hv_set_ctxnon0)
479
480#ifdef SET_MMU_STATS
481	/*
482	 * Returns old stat area on success
483	 */
484	ENTRY(hv_mmu_set_stat_area)
485	mov	MMU_STAT_AREA, %o5
486	ta	FAST_TRAP
487	retl
488	nop
489	SET_SIZE(hv_mmu_set_stat_area)
490#endif /* SET_MMU_STATS */
491
492	/*
493	 * CPU Q Configure
494	 * arg0 queue (%o0)
495	 * arg1 Base address RA (%o1)
496	 * arg2 Size (%o2)
497	 */
498	ENTRY(hv_cpu_qconf)
499	mov	CPU_QCONF, %o5
500	ta	FAST_TRAP
501	retl
502	nop
503	SET_SIZE(hv_cpu_qconf)
504
505	/*
506	 * arg0 - devhandle
507	 * arg1 - pci_device
508	 * arg2 - pci_config_offset
509	 * arg3 - pci_config_size
510	 *
511	 * ret0 - status
512	 * ret1 - error_flag
513	 * ret2 - pci_cfg_data
514	 */
515	ENTRY(hvio_config_get)
516	mov	HVIO_CONFIG_GET, %o5
517	ta	FAST_TRAP
518	brnz	%o0, 1f
519	movrnz	%o1, -1, %o2
520	brz,a	%o1, 1f
521	stuw	%o2, [%o4]
5221:	retl
523	nop
524	SET_SIZE(hvio_config_get)
525
526	/*
527	 * arg0 - devhandle
528	 * arg1 - pci_device
529	 * arg2 - pci_config_offset
530	 * arg3 - pci_config_size
531	 * arg4 - pci_cfg_data
532	 *
533	 * ret0 - status
534	 * ret1 - error_flag
535	 */
536	ENTRY(hvio_config_put)
537	mov	HVIO_CONFIG_PUT, %o5
538	ta	FAST_TRAP
539	retl
540	nop
541	SET_SIZE(hvio_config_put)
542
543	/*
544	 * arg0 - devhandle
545	 * arg1 - devino
546	 *
547	 * ret0 - status
548	 * ret1 - sysino
549	 */
550	ENTRY(hvio_intr_devino_to_sysino)
551	mov	HVIO_INTR_DEVINO2SYSINO, %o5
552	ta	FAST_TRAP
553	brz,a	%o0, 1f
554	stx	%o1, [%o2]
5551:	retl
556	nop
557	SET_SIZE(hvio_intr_devino_to_sysino)
558
559	/*
560	 * arg0 - sysino
561	 *
562	 * ret0 - status
563	 * ret1 - intr_valid_state
564	 */
565	ENTRY(hvio_intr_getvalid)
566	mov	%o1, %o2
567	mov	HVIO_INTR_GETVALID, %o5
568	ta	FAST_TRAP
569	brz,a	%o0, 1f
570	stuw	%o1, [%o2]
5711:	retl
572	nop
573	SET_SIZE(hvio_intr_getvalid)
574
575	/*
576	 * arg0 - sysino
577	 * arg1 - intr_valid_state
578	 *
579	 * ret0 - status
580	 */
581	ENTRY(hvio_intr_setvalid)
582	mov	HVIO_INTR_SETVALID, %o5
583	ta	FAST_TRAP
584	retl
585	nop
586	SET_SIZE(hvio_intr_setvalid)
587
588	/*
589	 * arg0 - sysino
590	 *
591	 * ret0 - status
592	 * ret1 - intr_state
593	 */
594	ENTRY(hvio_intr_getstate)
595	mov	%o1, %o2
596	mov	HVIO_INTR_GETSTATE, %o5
597	ta	FAST_TRAP
598	brz,a	%o0, 1f
599	stuw	%o1, [%o2]
6001:	retl
601	nop
602	SET_SIZE(hvio_intr_getstate)
603
604	/*
605	 * arg0 - sysino
606	 * arg1 - intr_state
607	 *
608	 * ret0 - status
609	 */
610	ENTRY(hvio_intr_setstate)
611	mov	HVIO_INTR_SETSTATE, %o5
612	ta	FAST_TRAP
613	retl
614	nop
615	SET_SIZE(hvio_intr_setstate)
616
617	/*
618	 * arg0 - sysino
619	 *
620	 * ret0 - status
621	 * ret1 - cpu_id
622	 */
623	ENTRY(hvio_intr_gettarget)
624	mov	%o1, %o2
625	mov	HVIO_INTR_GETTARGET, %o5
626	ta	FAST_TRAP
627	brz,a	%o0, 1f
628	stuw	%o1, [%o2]
6291:	retl
630	nop
631	SET_SIZE(hvio_intr_gettarget)
632
633	/*
634	 * arg0 - sysino
635	 * arg1 - cpu_id
636	 *
637	 * ret0 - status
638	 */
639	ENTRY(hvio_intr_settarget)
640	mov	HVIO_INTR_SETTARGET, %o5
641	ta	FAST_TRAP
642	retl
643	nop
644	SET_SIZE(hvio_intr_settarget)
645
646	/*
647	 * arg0 - devhandle
648	 * arg1 - tsbid
649	 * arg2 - pages
650	 * arg3 - io_attributes
651	 * arg4 - io_page_list_p
652	 *
653	 * ret1 - pages_mapped
654	 */
655	ENTRY(hvio_iommu_map)
656	save	%sp, -SA(MINFRAME64), %sp
657	mov	%i0, %o0
658	mov	%i1, %o1
659	mov	%i2, %o2
660	mov	%i3, %o3
661	mov	%i4, %o4
662	mov	HVIO_IOMMU_MAP, %o5
663	ta	FAST_TRAP
664	brnz	%o0, 1f
665	mov	%o0, %i0
666	stuw	%o1, [%i5]
6671:
668	ret
669	restore
670	SET_SIZE(hvio_iommu_map)
671
672	/*
673	 * arg0 - devhandle
674	 * arg1 - tsbid
675	 * arg2 - pages
676	 *
677	 * ret1 - pages_demapped
678	 */
679	ENTRY(hvio_iommu_demap)
680	mov	HVIO_IOMMU_DEMAP, %o5
681	ta	FAST_TRAP
682	brz,a	%o0, 1f
683	stuw	%o1, [%o3]
6841:	retl
685	nop
686	SET_SIZE(hvio_iommu_demap)
687
688	/*
689	 * arg0 - devhandle
690	 * arg1 - tsbid
691	 *
692	 *
693	 * ret0 - status
694	 * ret1 - io_attributes
695	 * ret2 - r_addr
696	 */
697	ENTRY(hvio_iommu_getmap)
698	mov	%o2, %o4
699	mov	HVIO_IOMMU_GETMAP, %o5
700	ta	FAST_TRAP
701	brnz	%o0, 1f
702	nop
703	stx	%o2, [%o3]
704	st	%o1, [%o4]
7051:
706	retl
707	nop
708	SET_SIZE(hvio_iommu_getmap)
709
710	/*
711	 * arg0 - devhandle
712	 * arg1 - r_addr
713	 * arg2 - io_attributes
714	 *
715	 *
716	 * ret0 - status
717	 * ret1 - io_addr
718	 */
719	ENTRY(hvio_iommu_getbypass)
720	mov	HVIO_IOMMU_GETBYPASS, %o5
721	ta	FAST_TRAP
722	brz,a	%o0, 1f
723	stx	%o1, [%o3]
7241:	retl
725	nop
726	SET_SIZE(hvio_iommu_getbypass)
727
728	/*
729	 * arg0 - devhandle
730	 * arg1 - r_addr
731	 * arg2 - size
732	 *
733	 * ret1 - error_flag
734	 * ret2 - data
735	 */
736	ENTRY(hvio_peek)
737	mov	HVIO_PEEK, %o5
738	ta	FAST_TRAP
739	brnz	%o0, 1f
740	nop
741	stx	%o2, [%o4]
742	st	%o1, [%o3]
7431:
744	retl
745	nop
746	SET_SIZE(hvio_peek)
747
748	/*
749	 * arg0 - devhandle
750	 * arg1 - r_addr
751	 * arg2 - sizes
752	 * arg3 - data
753	 * arg4 - r_addr2
754	 *
755	 * ret1 - error_flag
756	 */
757	ENTRY(hvio_poke)
758	save	%sp, -SA(MINFRAME64), %sp
759	mov	%i0, %o0
760	mov	%i1, %o1
761	mov	%i2, %o2
762	mov	%i3, %o3
763	mov	%i4, %o4
764	mov	HVIO_POKE, %o5
765	ta	FAST_TRAP
766	brnz	%o0, 1f
767	mov	%o0, %i0
768	stuw	%o1, [%i5]
7691:
770	ret
771	restore
772	SET_SIZE(hvio_poke)
773
774	/*
775	 * arg0 - devhandle
776	 * arg1 - r_addr
777	 * arg2 - num_bytes
778	 * arg3 - io_sync_direction
779	 *
780	 * ret0 - status
781	 * ret1 - bytes_synched
782	 */
783	ENTRY(hvio_dma_sync)
784	mov	HVIO_DMA_SYNC, %o5
785	ta	FAST_TRAP
786	brz,a	%o0, 1f
787	stx	%o1, [%o4]
7881:	retl
789	nop
790	SET_SIZE(hvio_dma_sync)
791
792	/*
793	 * arg0 - devhandle
794	 * arg1 - msiq_id
795	 * arg2 - r_addr
796	 * arg3 - nentries
797	 *
798	 * ret0 - status
799	 */
800	ENTRY(hvio_msiq_conf)
801	mov	HVIO_MSIQ_CONF, %o5
802	ta	FAST_TRAP
803	retl
804	nop
805	SET_SIZE(hvio_msiq_conf)
806
807	/*
808	 * arg0 - devhandle
809	 * arg1 - msiq_id
810	 *
811	 * ret0 - status
812	 * ret1 - r_addr
813	 * ret1 - nentries
814	 */
815	ENTRY(hvio_msiq_info)
816	mov     %o2, %o4
817	mov     HVIO_MSIQ_INFO, %o5
818	ta      FAST_TRAP
819	brnz    1f
820	nop
821	stx     %o1, [%o4]
822	stuw    %o2, [%o3]
8231:      retl
824	nop
825	SET_SIZE(hvio_msiq_info)
826
827	/*
828	 * arg0 - devhandle
829	 * arg1 - msiq_id
830	 *
831	 * ret0 - status
832	 * ret1 - msiq_valid_state
833	 */
834	ENTRY(hvio_msiq_getvalid)
835	mov	HVIO_MSIQ_GETVALID, %o5
836	ta	FAST_TRAP
837	brz,a	%o0, 1f
838	stuw	%o1, [%o2]
8391:	retl
840	nop
841	SET_SIZE(hvio_msiq_getvalid)
842
843	/*
844	 * arg0 - devhandle
845	 * arg1 - msiq_id
846	 * arg2 - msiq_valid_state
847	 *
848	 * ret0 - status
849	 */
850	ENTRY(hvio_msiq_setvalid)
851	mov	HVIO_MSIQ_SETVALID, %o5
852	ta	FAST_TRAP
853	retl
854	nop
855	SET_SIZE(hvio_msiq_setvalid)
856
857	/*
858	 * arg0 - devhandle
859	 * arg1 - msiq_id
860	 *
861	 * ret0 - status
862	 * ret1 - msiq_state
863	 */
864	ENTRY(hvio_msiq_getstate)
865	mov	HVIO_MSIQ_GETSTATE, %o5
866	ta	FAST_TRAP
867	brz,a	%o0, 1f
868	stuw	%o1, [%o2]
8691:	retl
870	nop
871	SET_SIZE(hvio_msiq_getstate)
872
873	/*
874	 * arg0 - devhandle
875	 * arg1 - msiq_id
876	 * arg2 - msiq_state
877	 *
878	 * ret0 - status
879	 */
880	ENTRY(hvio_msiq_setstate)
881	mov	HVIO_MSIQ_SETSTATE, %o5
882	ta	FAST_TRAP
883	retl
884	nop
885	SET_SIZE(hvio_msiq_setstate)
886
887	/*
888	 * arg0 - devhandle
889	 * arg1 - msiq_id
890	 *
891	 * ret0 - status
892	 * ret1 - msiq_head
893	 */
894	ENTRY(hvio_msiq_gethead)
895	mov	HVIO_MSIQ_GETHEAD, %o5
896	ta	FAST_TRAP
897	brz,a	%o0, 1f
898	stx	%o1, [%o2]
8991:	retl
900	nop
901	SET_SIZE(hvio_msiq_gethead)
902
903	/*
904	 * arg0 - devhandle
905	 * arg1 - msiq_id
906	 * arg2 - msiq_head
907	 *
908	 * ret0 - status
909	 */
910	ENTRY(hvio_msiq_sethead)
911	mov	HVIO_MSIQ_SETHEAD, %o5
912	ta	FAST_TRAP
913	retl
914	nop
915	SET_SIZE(hvio_msiq_sethead)
916
917	/*
918	 * arg0 - devhandle
919	 * arg1 - msiq_id
920	 *
921	 * ret0 - status
922	 * ret1 - msiq_tail
923	 */
924	ENTRY(hvio_msiq_gettail)
925	mov	HVIO_MSIQ_GETTAIL, %o5
926	ta	FAST_TRAP
927	brz,a	%o0, 1f
928	stx	%o1, [%o2]
9291:	retl
930	nop
931	SET_SIZE(hvio_msiq_gettail)
932
933	/*
934	 * arg0 - devhandle
935	 * arg1 - msi_num
936	 *
937	 * ret0 - status
938	 * ret1 - msiq_id
939	 */
940	ENTRY(hvio_msi_getmsiq)
941	mov	HVIO_MSI_GETMSIQ, %o5
942	ta	FAST_TRAP
943	brz,a	%o0, 1f
944	stuw	%o1, [%o2]
9451:	retl
946	nop
947	SET_SIZE(hvio_msi_getmsiq)
948
949	/*
950	 * arg0 - devhandle
951	 * arg1 - msi_num
952	 * arg2 - msiq_id
953	 * arg2 - msitype
954	 *
955	 * ret0 - status
956	 */
957	ENTRY(hvio_msi_setmsiq)
958	mov	HVIO_MSI_SETMSIQ, %o5
959	ta	FAST_TRAP
960	retl
961	nop
962	SET_SIZE(hvio_msi_setmsiq)
963
964	/*
965	 * arg0 - devhandle
966	 * arg1 - msi_num
967	 *
968	 * ret0 - status
969	 * ret1 - msi_valid_state
970	 */
971	ENTRY(hvio_msi_getvalid)
972	mov	HVIO_MSI_GETVALID, %o5
973	ta	FAST_TRAP
974	brz,a	%o0, 1f
975	stuw	%o1, [%o2]
9761:	retl
977	nop
978	SET_SIZE(hvio_msi_getvalid)
979
980	/*
981	 * arg0 - devhandle
982	 * arg1 - msi_num
983	 * arg2 - msi_valid_state
984	 *
985	 * ret0 - status
986	 */
987	ENTRY(hvio_msi_setvalid)
988	mov	HVIO_MSI_SETVALID, %o5
989	ta	FAST_TRAP
990	retl
991	nop
992	SET_SIZE(hvio_msi_setvalid)
993
994	/*
995	 * arg0 - devhandle
996	 * arg1 - msi_num
997	 *
998	 * ret0 - status
999	 * ret1 - msi_state
1000	 */
1001	ENTRY(hvio_msi_getstate)
1002	mov	HVIO_MSI_GETSTATE, %o5
1003	ta	FAST_TRAP
1004	brz,a	%o0, 1f
1005	stuw	%o1, [%o2]
10061:	retl
1007	nop
1008	SET_SIZE(hvio_msi_getstate)
1009
1010	/*
1011	 * arg0 - devhandle
1012	 * arg1 - msi_num
1013	 * arg2 - msi_state
1014	 *
1015	 * ret0 - status
1016	 */
1017	ENTRY(hvio_msi_setstate)
1018	mov	HVIO_MSI_SETSTATE, %o5
1019	ta	FAST_TRAP
1020	retl
1021	nop
1022	SET_SIZE(hvio_msi_setstate)
1023
1024	/*
1025	 * arg0 - devhandle
1026	 * arg1 - msg_type
1027	 *
1028	 * ret0 - status
1029	 * ret1 - msiq_id
1030	 */
1031	ENTRY(hvio_msg_getmsiq)
1032	mov	HVIO_MSG_GETMSIQ, %o5
1033	ta	FAST_TRAP
1034	brz,a	%o0, 1f
1035	stuw	%o1, [%o2]
10361:	retl
1037	nop
1038	SET_SIZE(hvio_msg_getmsiq)
1039
1040	/*
1041	 * arg0 - devhandle
1042	 * arg1 - msg_type
1043	 * arg2 - msiq_id
1044	 *
1045	 * ret0 - status
1046	 */
1047	ENTRY(hvio_msg_setmsiq)
1048	mov	HVIO_MSG_SETMSIQ, %o5
1049	ta	FAST_TRAP
1050	retl
1051	nop
1052	SET_SIZE(hvio_msg_setmsiq)
1053
1054	/*
1055	 * arg0 - devhandle
1056	 * arg1 - msg_type
1057	 *
1058	 * ret0 - status
1059	 * ret1 - msg_valid_state
1060	 */
1061	ENTRY(hvio_msg_getvalid)
1062	mov	HVIO_MSG_GETVALID, %o5
1063	ta	FAST_TRAP
1064	brz,a	%o0, 1f
1065	stuw	%o1, [%o2]
10661:	retl
1067	nop
1068	SET_SIZE(hvio_msg_getvalid)
1069
1070	/*
1071	 * arg0 - devhandle
1072	 * arg1 - msg_type
1073	 * arg2 - msg_valid_state
1074	 *
1075	 * ret0 - status
1076	 */
1077	ENTRY(hvio_msg_setvalid)
1078	mov	HVIO_MSG_SETVALID, %o5
1079	ta	FAST_TRAP
1080	retl
1081	nop
1082	SET_SIZE(hvio_msg_setvalid)
1083
1084	/*
1085	 * hv_cpu_yield(void)
1086	 */
1087	ENTRY(hv_cpu_yield)
1088#ifdef NIAGARA_ERRATUM_39
1089	/*
1090	 * If niagara_erratum_39 is set, then we need to halt the strand by
1091	 * executing a synthetic "halt" instruction which maps to a
1092	 * wrasr %asr26 with a data value which has bit 0 clear.
1093	 *
1094	 * Note that we don't halt the strand if there are any pending
1095	 * soft interrupts (%asr22).
1096	 */
1097	set	niagara_erratum_39, %o0
1098	ld	[%o0], %o1
1099	brz	%o1, 2f
1100	nop
1101
1102	rd	%asr26, %o0
1103	andn	%o0, 1, %o0
1104	rd	%asr22, %o1		! don't halt if soft interrupts pending
1105	brnz	%o1, 1f
1106	nop
1107	wr	%o0, %asr26		! halt the strand
11081:
1109	mov	%g0, %o0
1110	retl
1111	nop
11122:
1113#endif /* NIAGARA_ERRATUM_39 */
1114	mov	HV_CPU_YIELD, %o5
1115	ta	FAST_TRAP
1116	retl
1117	nop
1118	SET_SIZE(hv_cpu_yield)
1119
1120	/*
1121	 * hv_service_recv(uint64_t s_id, uint64_t buf_pa,
1122	 *     uint64_t size, uint64_t *recv_bytes);
1123	 */
1124	ENTRY(hv_service_recv)
1125	save	%sp, -SA(MINFRAME), %sp
1126	mov	%i0, %o0
1127	mov	%i1, %o1
1128	mov	%i2, %o2
1129	mov	%i3, %o3
1130	mov	SVC_RECV, %o5
1131	ta	FAST_TRAP
1132	brnz	%o0, 1f
1133	mov	%o0, %i0
1134	stx	%o1, [%i3]
11351:
1136	ret
1137	restore
1138	SET_SIZE(hv_service_recv)
1139
1140	/*
1141	 * hv_service_send(uint64_t s_id, uint64_t buf_pa,
1142	 *     uint64_t size, uint64_t *recv_bytes);
1143	 */
1144	ENTRY(hv_service_send)
1145	save	%sp, -SA(MINFRAME), %sp
1146	mov	%i0, %o0
1147	mov	%i1, %o1
1148	mov	%i2, %o2
1149	mov	%i3, %o3
1150	mov	SVC_SEND, %o5
1151	ta	FAST_TRAP
1152	brnz	%o0, 1f
1153	mov	%o0, %i0
1154	stx	%o1, [%i3]
11551:
1156	ret
1157	restore
1158	SET_SIZE(hv_service_send)
1159
1160	/*
1161	 * hv_service_getstatus(uint64_t s_id, uint64_t *vreg);
1162	 */
1163	ENTRY(hv_service_getstatus)
1164	mov	%o1, %o4			! save datap
1165	mov	SVC_GETSTATUS, %o5
1166	ta	FAST_TRAP
1167	brz,a	%o0, 1f
1168	stx	%o1, [%o4]
11691:
1170	retl
1171	nop
1172	SET_SIZE(hv_service_getstatus)
1173
1174	/*
1175	 * hv_service_clrstatus(uint64_t s_id, uint64_t bits);
1176	 */
1177	ENTRY(hv_service_clrstatus)
1178	mov	SVC_CLRSTATUS, %o5
1179	ta	FAST_TRAP
1180	retl
1181	nop
1182	SET_SIZE(hv_service_clrstatus)
1183
1184	/*
1185	 * int hv_cpu_state(uint64_t cpuid, uint64_t *cpu_state);
1186	 */
1187	ENTRY(hv_cpu_state)
1188	mov	%o1, %o4			! save datap
1189	mov	HV_CPU_STATE, %o5
1190	ta	FAST_TRAP
1191	brz,a	%o0, 1f
1192	stx	%o1, [%o4]
11931:
1194	retl
1195	nop
1196	SET_SIZE(hv_cpu_state)
1197
1198	/*
1199	 * HV state dump zone Configure
1200	 * arg0 real adrs of dump buffer (%o0)
1201	 * arg1 size of dump buffer (%o1)
1202	 * ret0 status (%o0)
1203	 * ret1 size of buffer on success and min size on EINVAL (%o1)
1204	 * hv_dump_buf_update(uint64_t paddr, uint64_t size, uint64_t *ret_size)
1205	 */
1206	ENTRY(hv_dump_buf_update)
1207	mov	DUMP_BUF_UPDATE, %o5
1208	ta	FAST_TRAP
1209	retl
1210	stx	%o1, [%o2]
1211	SET_SIZE(hv_dump_buf_update)
1212
1213
1214	/*
1215	 * For memory scrub
1216	 * int hv_mem_scrub(uint64_t real_addr, uint64_t length,
1217	 * 	uint64_t *scrubbed_len);
1218	 * Retun %o0 -- status
1219	 *       %o1 -- bytes scrubbed
1220	 */
1221	ENTRY(hv_mem_scrub)
1222	mov	%o2, %o4
1223	mov	HV_MEM_SCRUB, %o5
1224	ta	FAST_TRAP
1225	retl
1226	stx	%o1, [%o4]
1227	SET_SIZE(hv_mem_scrub)
1228
1229	/*
1230	 * Flush ecache
1231	 * int hv_mem_sync(uint64_t real_addr, uint64_t length,
1232	 * 	uint64_t *flushed_len);
1233	 * Retun %o0 -- status
1234	 *       %o1 -- bytes flushed
1235	 */
1236	ENTRY(hv_mem_sync)
1237	mov	%o2, %o4
1238	mov	HV_MEM_SYNC, %o5
1239	ta	FAST_TRAP
1240	retl
1241	stx	%o1, [%o4]
1242	SET_SIZE(hv_mem_sync)
1243
1244	/*
1245	 * TTRACE_BUF_CONF Configure
1246	 * arg0 RA base of buffer (%o0)
1247	 * arg1 buf size in no. of entries (%o1)
1248	 * ret0 status (%o0)
1249	 * ret1 minimum size in no. of entries on failure,
1250	 * actual size in no. of entries on success (%o1)
1251	 */
1252	ENTRY(hv_ttrace_buf_conf)
1253	mov	TTRACE_BUF_CONF, %o5
1254	ta	FAST_TRAP
1255	retl
1256	stx	%o1, [%o2]
1257	SET_SIZE(hv_ttrace_buf_conf)
1258
1259	 /*
1260	 * TTRACE_BUF_INFO
1261	 * ret0 status (%o0)
1262	 * ret1 RA base of buffer (%o1)
1263	 * ret2 size in no. of entries (%o2)
1264	 */
1265	ENTRY(hv_ttrace_buf_info)
1266	mov	%o0, %o3
1267	mov	%o1, %o4
1268	mov	TTRACE_BUF_INFO, %o5
1269	ta	FAST_TRAP
1270	stx	%o1, [%o3]
1271	retl
1272	stx	%o2, [%o4]
1273	SET_SIZE(hv_ttrace_buf_info)
1274
1275	/*
1276	 * TTRACE_ENABLE
1277	 * arg0 enable/ disable (%o0)
1278	 * ret0 status (%o0)
1279	 * ret1 previous enable state (%o1)
1280	 */
1281	ENTRY(hv_ttrace_enable)
1282	mov	%o1, %o2
1283	mov	TTRACE_ENABLE, %o5
1284	ta	FAST_TRAP
1285	retl
1286	stx	%o1, [%o2]
1287	SET_SIZE(hv_ttrace_enable)
1288
1289	/*
1290	 * TTRACE_FREEZE
1291	 * arg0 enable/ freeze (%o0)
1292	 * ret0 status (%o0)
1293	 * ret1 previous freeze state (%o1)
1294	*/
1295	ENTRY(hv_ttrace_freeze)
1296	mov	%o1, %o2
1297	mov	TTRACE_FREEZE, %o5
1298	ta	FAST_TRAP
1299	retl
1300	stx	%o1, [%o2]
1301	SET_SIZE(hv_ttrace_freeze)
1302
1303	/*
1304	* MACH_DESC
1305	* arg0 buffer real address
1306	* arg1 pointer to uint64_t for size of buffer
1307	* ret0 status
1308	* ret1 return required size of buffer / returned data size
1309	*/
1310	ENTRY(hv_mach_desc)
1311	mov     %o1, %o4                ! save datap
1312	ldx     [%o1], %o1
1313	mov     HV_MACH_DESC, %o5
1314	ta      FAST_TRAP
1315	retl
1316	stx   %o1, [%o4]
1317	SET_SIZE(hv_mach_desc)
1318
1319	/*
1320	 * hv_ncs_request(int cmd, uint64_t realaddr, size_t sz)
1321	 */
1322	ENTRY(hv_ncs_request)
1323	mov	HV_NCS_REQUEST, %o5
1324	ta	FAST_TRAP
1325	retl
1326	nop
1327	SET_SIZE(hv_ncs_request)
1328
1329#ifdef NIAGARA_ERRATUM_39
1330	.seg	".data"
1331	.align	4
1332	.global	niagara_erratum_39
1333niagara_erratum_39:
1334	.word	0
1335	.seg	".text"
1336#endif
1337#endif	/* lint || __lint */
1338