xref: /illumos-gate/usr/src/uts/sun4u/io/px/px_lib4u.c (revision f8d2de6bd2421da1926f3daa456d161670decdf7)
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 #include <sys/types.h>
30 #include <sys/kmem.h>
31 #include <sys/conf.h>
32 #include <sys/ddi.h>
33 #include <sys/sunddi.h>
34 #include <sys/fm/protocol.h>
35 #include <sys/fm/util.h>
36 #include <sys/modctl.h>
37 #include <sys/disp.h>
38 #include <sys/stat.h>
39 #include <sys/ddi_impldefs.h>
40 #include <sys/vmem.h>
41 #include <sys/iommutsb.h>
42 #include <sys/cpuvar.h>
43 #include <sys/ivintr.h>
44 #include <px_obj.h>
45 #include <pcie_pwr.h>
46 #include "px_tools_var.h"
47 #include <px_regs.h>
48 #include <px_csr.h>
49 #include <sys/machsystm.h>
50 #include "px_lib4u.h"
51 #include "px_err.h"
52 
53 #pragma weak jbus_stst_order
54 
55 extern void jbus_stst_order();
56 
57 ulong_t px_mmu_dvma_end = 0xfffffffful;
58 uint_t px_ranges_phi_mask = 0xfffffffful;
59 
60 static int px_goto_l23ready(px_t *px_p);
61 static uint32_t px_identity_chip(px_t *px_p);
62 static void px_lib_clr_errs(px_t *px_p, px_pec_t *pec_p);
63 
64 /*
65  * px_lib_map_registers
66  *
67  * This function is called from the attach routine to map the registers
68  * accessed by this driver.
69  *
70  * used by: px_attach()
71  *
72  * return value: DDI_FAILURE on failure
73  */
74 int
75 px_lib_map_regs(pxu_t *pxu_p, dev_info_t *dip)
76 {
77 	ddi_device_acc_attr_t	attr;
78 	px_reg_bank_t		reg_bank = PX_REG_CSR;
79 
80 	DBG(DBG_ATTACH, dip, "px_lib_map_regs: pxu_p:0x%p, dip 0x%p\n",
81 		pxu_p, dip);
82 
83 	attr.devacc_attr_version = DDI_DEVICE_ATTR_V0;
84 	attr.devacc_attr_dataorder = DDI_STRICTORDER_ACC;
85 	attr.devacc_attr_endian_flags = DDI_NEVERSWAP_ACC;
86 
87 	/*
88 	 * PCI CSR Base
89 	 */
90 	if (ddi_regs_map_setup(dip, reg_bank, &pxu_p->px_address[reg_bank],
91 	    0, 0, &attr, &pxu_p->px_ac[reg_bank]) != DDI_SUCCESS) {
92 		goto fail;
93 	}
94 
95 	reg_bank++;
96 
97 	/*
98 	 * XBUS CSR Base
99 	 */
100 	if (ddi_regs_map_setup(dip, reg_bank, &pxu_p->px_address[reg_bank],
101 	    0, 0, &attr, &pxu_p->px_ac[reg_bank]) != DDI_SUCCESS) {
102 		goto fail;
103 	}
104 
105 	pxu_p->px_address[reg_bank] -= FIRE_CONTROL_STATUS;
106 
107 done:
108 	for (; reg_bank >= PX_REG_CSR; reg_bank--) {
109 		DBG(DBG_ATTACH, dip, "reg_bank 0x%x address 0x%p\n",
110 		    reg_bank, pxu_p->px_address[reg_bank]);
111 	}
112 
113 	return (DDI_SUCCESS);
114 
115 fail:
116 	cmn_err(CE_WARN, "%s%d: unable to map reg entry %d\n",
117 	    ddi_driver_name(dip), ddi_get_instance(dip), reg_bank);
118 
119 	for (reg_bank--; reg_bank >= PX_REG_CSR; reg_bank--) {
120 		pxu_p->px_address[reg_bank] = NULL;
121 		ddi_regs_map_free(&pxu_p->px_ac[reg_bank]);
122 	}
123 
124 	return (DDI_FAILURE);
125 }
126 
127 /*
128  * px_lib_unmap_regs:
129  *
130  * This routine unmaps the registers mapped by map_px_registers.
131  *
132  * used by: px_detach(), and error conditions in px_attach()
133  *
134  * return value: none
135  */
136 void
137 px_lib_unmap_regs(pxu_t *pxu_p)
138 {
139 	int i;
140 
141 	for (i = 0; i < PX_REG_MAX; i++) {
142 		if (pxu_p->px_ac[i])
143 			ddi_regs_map_free(&pxu_p->px_ac[i]);
144 	}
145 }
146 
147 int
148 px_lib_dev_init(dev_info_t *dip, devhandle_t *dev_hdl)
149 {
150 	px_t		*px_p = DIP_TO_STATE(dip);
151 	caddr_t		xbc_csr_base, csr_base;
152 	px_dvma_range_prop_t	px_dvma_range;
153 	uint32_t	chip_id;
154 	pxu_t		*pxu_p;
155 
156 	DBG(DBG_ATTACH, dip, "px_lib_dev_init: dip 0x%p\n", dip);
157 
158 	if ((chip_id = px_identity_chip(px_p)) == PX_CHIP_UNIDENTIFIED)
159 		return (DDI_FAILURE);
160 
161 	switch (chip_id) {
162 	case FIRE_VER_10:
163 		DBG(DBG_ATTACH, dip, "FIRE Hardware Version 1.0\n");
164 		break;
165 	case FIRE_VER_20:
166 		DBG(DBG_ATTACH, dip, "FIRE Hardware Version 2.0\n");
167 		break;
168 	default:
169 		cmn_err(CE_WARN, "%s%d: FIRE Hardware Version Unknown\n",
170 		    ddi_driver_name(dip), ddi_get_instance(dip));
171 		return (DDI_FAILURE);
172 	}
173 
174 	/*
175 	 * Allocate platform specific structure and link it to
176 	 * the px state structure.
177 	 */
178 	pxu_p = kmem_zalloc(sizeof (pxu_t), KM_SLEEP);
179 	pxu_p->chip_id = chip_id;
180 	pxu_p->portid  = ddi_getprop(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
181 	    "portid", -1);
182 
183 	/* Map in the registers */
184 	if (px_lib_map_regs(pxu_p, dip) == DDI_FAILURE) {
185 		kmem_free(pxu_p, sizeof (pxu_t));
186 
187 		return (DDI_FAILURE);
188 	}
189 
190 	xbc_csr_base = (caddr_t)pxu_p->px_address[PX_REG_XBC];
191 	csr_base = (caddr_t)pxu_p->px_address[PX_REG_CSR];
192 
193 	pxu_p->tsb_cookie = iommu_tsb_alloc(pxu_p->portid);
194 	pxu_p->tsb_size = iommu_tsb_cookie_to_size(pxu_p->tsb_cookie);
195 	pxu_p->tsb_vaddr = iommu_tsb_cookie_to_va(pxu_p->tsb_cookie);
196 
197 	/*
198 	 * Create "virtual-dma" property to support child devices
199 	 * needing to know DVMA range.
200 	 */
201 	px_dvma_range.dvma_base = (uint32_t)px_mmu_dvma_end + 1
202 	    - ((pxu_p->tsb_size >> 3) << MMU_PAGE_SHIFT);
203 	px_dvma_range.dvma_len = (uint32_t)
204 	    px_mmu_dvma_end - px_dvma_range.dvma_base + 1;
205 
206 	(void) ddi_prop_create(DDI_DEV_T_NONE, dip, DDI_PROP_CANSLEEP,
207 		"virtual-dma", (caddr_t)&px_dvma_range,
208 		sizeof (px_dvma_range_prop_t));
209 	/*
210 	 * Initilize all fire hardware specific blocks.
211 	 */
212 	hvio_cb_init(xbc_csr_base, pxu_p);
213 	hvio_ib_init(csr_base, pxu_p);
214 	hvio_pec_init(csr_base, pxu_p);
215 	hvio_mmu_init(csr_base, pxu_p);
216 
217 	px_p->px_plat_p = (void *)pxu_p;
218 
219 	/*
220 	 * Initialize all the interrupt handlers
221 	 */
222 	px_err_reg_enable(px_p, PX_ERR_JBC);
223 	px_err_reg_enable(px_p, PX_ERR_MMU);
224 	px_err_reg_enable(px_p, PX_ERR_IMU);
225 	px_err_reg_enable(px_p, PX_ERR_TLU_UE);
226 	px_err_reg_enable(px_p, PX_ERR_TLU_CE);
227 	px_err_reg_enable(px_p, PX_ERR_TLU_OE);
228 	px_err_reg_enable(px_p, PX_ERR_ILU);
229 	px_err_reg_enable(px_p, PX_ERR_LPU_LINK);
230 	px_err_reg_enable(px_p, PX_ERR_LPU_PHY);
231 	px_err_reg_enable(px_p, PX_ERR_LPU_RX);
232 	px_err_reg_enable(px_p, PX_ERR_LPU_TX);
233 	px_err_reg_enable(px_p, PX_ERR_LPU_LTSSM);
234 	px_err_reg_enable(px_p, PX_ERR_LPU_GIGABLZ);
235 
236 	/* Initilize device handle */
237 	*dev_hdl = (devhandle_t)csr_base;
238 
239 	DBG(DBG_ATTACH, dip, "px_lib_dev_init: dev_hdl 0x%llx\n", *dev_hdl);
240 
241 	return (DDI_SUCCESS);
242 }
243 
244 int
245 px_lib_dev_fini(dev_info_t *dip)
246 {
247 	px_t	*px_p = DIP_TO_STATE(dip);
248 	pxu_t	*pxu_p = (pxu_t *)px_p->px_plat_p;
249 
250 	DBG(DBG_DETACH, dip, "px_lib_dev_fini: dip 0x%p\n", dip);
251 
252 	/*
253 	 * Deinitialize all the interrupt handlers
254 	 */
255 	px_err_reg_disable(px_p, PX_ERR_JBC);
256 	px_err_reg_disable(px_p, PX_ERR_MMU);
257 	px_err_reg_disable(px_p, PX_ERR_IMU);
258 	px_err_reg_disable(px_p, PX_ERR_TLU_UE);
259 	px_err_reg_disable(px_p, PX_ERR_TLU_CE);
260 	px_err_reg_disable(px_p, PX_ERR_TLU_OE);
261 	px_err_reg_disable(px_p, PX_ERR_ILU);
262 	px_err_reg_disable(px_p, PX_ERR_LPU_LINK);
263 	px_err_reg_disable(px_p, PX_ERR_LPU_PHY);
264 	px_err_reg_disable(px_p, PX_ERR_LPU_RX);
265 	px_err_reg_disable(px_p, PX_ERR_LPU_TX);
266 	px_err_reg_disable(px_p, PX_ERR_LPU_LTSSM);
267 	px_err_reg_disable(px_p, PX_ERR_LPU_GIGABLZ);
268 
269 	iommu_tsb_free(pxu_p->tsb_cookie);
270 
271 	px_lib_unmap_regs((pxu_t *)px_p->px_plat_p);
272 	kmem_free(px_p->px_plat_p, sizeof (pxu_t));
273 	px_p->px_plat_p = NULL;
274 
275 	return (DDI_SUCCESS);
276 }
277 
278 /*ARGSUSED*/
279 int
280 px_lib_intr_devino_to_sysino(dev_info_t *dip, devino_t devino,
281     sysino_t *sysino)
282 {
283 	px_t	*px_p = DIP_TO_STATE(dip);
284 	pxu_t	*pxu_p = (pxu_t *)px_p->px_plat_p;
285 	uint64_t	ret;
286 
287 	DBG(DBG_LIB_INT, dip, "px_lib_intr_devino_to_sysino: dip 0x%p "
288 	    "devino 0x%x\n", dip, devino);
289 
290 	if ((ret = hvio_intr_devino_to_sysino(DIP_TO_HANDLE(dip),
291 	    pxu_p, devino, sysino)) != H_EOK) {
292 		DBG(DBG_LIB_INT, dip,
293 		    "hvio_intr_devino_to_sysino failed, ret 0x%lx\n", ret);
294 		return (DDI_FAILURE);
295 	}
296 
297 	DBG(DBG_LIB_INT, dip, "px_lib_intr_devino_to_sysino: sysino 0x%llx\n",
298 	    *sysino);
299 
300 	return (DDI_SUCCESS);
301 }
302 
303 /*ARGSUSED*/
304 int
305 px_lib_intr_getvalid(dev_info_t *dip, sysino_t sysino,
306     intr_valid_state_t *intr_valid_state)
307 {
308 	uint64_t	ret;
309 
310 	DBG(DBG_LIB_INT, dip, "px_lib_intr_getvalid: dip 0x%p sysino 0x%llx\n",
311 	    dip, sysino);
312 
313 	if ((ret = hvio_intr_getvalid(DIP_TO_HANDLE(dip),
314 	    sysino, intr_valid_state)) != H_EOK) {
315 		DBG(DBG_LIB_INT, dip, "hvio_intr_getvalid failed, ret 0x%lx\n",
316 		    ret);
317 		return (DDI_FAILURE);
318 	}
319 
320 	DBG(DBG_LIB_INT, dip, "px_lib_intr_getvalid: intr_valid_state 0x%x\n",
321 	    *intr_valid_state);
322 
323 	return (DDI_SUCCESS);
324 }
325 
326 /*ARGSUSED*/
327 int
328 px_lib_intr_setvalid(dev_info_t *dip, sysino_t sysino,
329     intr_valid_state_t intr_valid_state)
330 {
331 	uint64_t	ret;
332 
333 	DBG(DBG_LIB_INT, dip, "px_lib_intr_setvalid: dip 0x%p sysino 0x%llx "
334 	    "intr_valid_state 0x%x\n", dip, sysino, intr_valid_state);
335 
336 	if ((ret = hvio_intr_setvalid(DIP_TO_HANDLE(dip),
337 	    sysino, intr_valid_state)) != H_EOK) {
338 		DBG(DBG_LIB_INT, dip, "hvio_intr_setvalid failed, ret 0x%lx\n",
339 		    ret);
340 		return (DDI_FAILURE);
341 	}
342 
343 	return (DDI_SUCCESS);
344 }
345 
346 /*ARGSUSED*/
347 int
348 px_lib_intr_getstate(dev_info_t *dip, sysino_t sysino,
349     intr_state_t *intr_state)
350 {
351 	uint64_t	ret;
352 
353 	DBG(DBG_LIB_INT, dip, "px_lib_intr_getstate: dip 0x%p sysino 0x%llx\n",
354 	    dip, sysino);
355 
356 	if ((ret = hvio_intr_getstate(DIP_TO_HANDLE(dip),
357 	    sysino, intr_state)) != H_EOK) {
358 		DBG(DBG_LIB_INT, dip, "hvio_intr_getstate failed, ret 0x%lx\n",
359 		    ret);
360 		return (DDI_FAILURE);
361 	}
362 
363 	DBG(DBG_LIB_INT, dip, "px_lib_intr_getstate: intr_state 0x%x\n",
364 	    *intr_state);
365 
366 	return (DDI_SUCCESS);
367 }
368 
369 /*ARGSUSED*/
370 int
371 px_lib_intr_setstate(dev_info_t *dip, sysino_t sysino,
372     intr_state_t intr_state)
373 {
374 	uint64_t	ret;
375 
376 	DBG(DBG_LIB_INT, dip, "px_lib_intr_setstate: dip 0x%p sysino 0x%llx "
377 	    "intr_state 0x%x\n", dip, sysino, intr_state);
378 
379 	if ((ret = hvio_intr_setstate(DIP_TO_HANDLE(dip),
380 	    sysino, intr_state)) != H_EOK) {
381 		DBG(DBG_LIB_INT, dip, "hvio_intr_setstate failed, ret 0x%lx\n",
382 		    ret);
383 		return (DDI_FAILURE);
384 	}
385 
386 	return (DDI_SUCCESS);
387 }
388 
389 /*ARGSUSED*/
390 int
391 px_lib_intr_gettarget(dev_info_t *dip, sysino_t sysino, cpuid_t *cpuid)
392 {
393 	uint64_t	ret;
394 
395 	DBG(DBG_LIB_INT, dip, "px_lib_intr_gettarget: dip 0x%p sysino 0x%llx\n",
396 	    dip, sysino);
397 
398 	if ((ret = hvio_intr_gettarget(DIP_TO_HANDLE(dip),
399 	    sysino, cpuid)) != H_EOK) {
400 		DBG(DBG_LIB_INT, dip, "hvio_intr_gettarget failed, ret 0x%lx\n",
401 		    ret);
402 		return (DDI_FAILURE);
403 	}
404 
405 	DBG(DBG_LIB_INT, dip, "px_lib_intr_gettarget: cpuid 0x%x\n", cpuid);
406 
407 	return (DDI_SUCCESS);
408 }
409 
410 /*ARGSUSED*/
411 int
412 px_lib_intr_settarget(dev_info_t *dip, sysino_t sysino, cpuid_t cpuid)
413 {
414 	uint64_t	ret;
415 
416 	DBG(DBG_LIB_INT, dip, "px_lib_intr_settarget: dip 0x%p sysino 0x%llx "
417 	    "cpuid 0x%x\n", dip, sysino, cpuid);
418 
419 	if ((ret = hvio_intr_settarget(DIP_TO_HANDLE(dip),
420 	    sysino, cpuid)) != H_EOK) {
421 		DBG(DBG_LIB_INT, dip, "hvio_intr_settarget failed, ret 0x%lx\n",
422 		    ret);
423 		return (DDI_FAILURE);
424 	}
425 
426 	return (DDI_SUCCESS);
427 }
428 
429 /*ARGSUSED*/
430 int
431 px_lib_intr_reset(dev_info_t *dip)
432 {
433 	devino_t	ino;
434 	sysino_t	sysino;
435 
436 	DBG(DBG_LIB_INT, dip, "px_lib_intr_reset: dip 0x%p\n", dip);
437 
438 	/* Reset all Interrupts */
439 	for (ino = 0; ino < INTERRUPT_MAPPING_ENTRIES; ino++) {
440 		if (px_lib_intr_devino_to_sysino(dip, ino,
441 		    &sysino) != DDI_SUCCESS)
442 			return (BF_FATAL);
443 
444 		if (px_lib_intr_setstate(dip, sysino,
445 		    INTR_IDLE_STATE) != DDI_SUCCESS)
446 			return (BF_FATAL);
447 	}
448 
449 	return (BF_NONE);
450 }
451 
452 /*ARGSUSED*/
453 int
454 px_lib_iommu_map(dev_info_t *dip, tsbid_t tsbid, pages_t pages,
455     io_attributes_t io_attributes, void *addr, size_t pfn_index,
456     int flag)
457 {
458 	px_t		*px_p = DIP_TO_STATE(dip);
459 	pxu_t		*pxu_p = (pxu_t *)px_p->px_plat_p;
460 	uint64_t	ret;
461 
462 	DBG(DBG_LIB_DMA, dip, "px_lib_iommu_map: dip 0x%p tsbid 0x%llx "
463 	    "pages 0x%x atrr 0x%x addr 0x%p pfn_index 0x%llx, flag 0x%x\n",
464 	    dip, tsbid, pages, io_attributes, addr, pfn_index, flag);
465 
466 	if ((ret = hvio_iommu_map(px_p->px_dev_hdl, pxu_p, tsbid, pages,
467 	    io_attributes, addr, pfn_index, flag)) != H_EOK) {
468 		DBG(DBG_LIB_DMA, dip,
469 		    "px_lib_iommu_map failed, ret 0x%lx\n", ret);
470 		return (DDI_FAILURE);
471 	}
472 
473 	return (DDI_SUCCESS);
474 }
475 
476 /*ARGSUSED*/
477 int
478 px_lib_iommu_demap(dev_info_t *dip, tsbid_t tsbid, pages_t pages)
479 {
480 	px_t		*px_p = DIP_TO_STATE(dip);
481 	pxu_t		*pxu_p = (pxu_t *)px_p->px_plat_p;
482 	uint64_t	ret;
483 
484 	DBG(DBG_LIB_DMA, dip, "px_lib_iommu_demap: dip 0x%p tsbid 0x%llx "
485 	    "pages 0x%x\n", dip, tsbid, pages);
486 
487 	if ((ret = hvio_iommu_demap(px_p->px_dev_hdl, pxu_p, tsbid, pages))
488 	    != H_EOK) {
489 		DBG(DBG_LIB_DMA, dip,
490 		    "px_lib_iommu_demap failed, ret 0x%lx\n", ret);
491 
492 		return (DDI_FAILURE);
493 	}
494 
495 	return (DDI_SUCCESS);
496 }
497 
498 /*ARGSUSED*/
499 int
500 px_lib_iommu_getmap(dev_info_t *dip, tsbid_t tsbid,
501     io_attributes_t *attributes_p, r_addr_t *r_addr_p)
502 {
503 	px_t	*px_p = DIP_TO_STATE(dip);
504 	pxu_t	*pxu_p = (pxu_t *)px_p->px_plat_p;
505 	uint64_t	ret;
506 
507 	DBG(DBG_LIB_DMA, dip, "px_lib_iommu_getmap: dip 0x%p tsbid 0x%llx\n",
508 	    dip, tsbid);
509 
510 	if ((ret = hvio_iommu_getmap(DIP_TO_HANDLE(dip), pxu_p, tsbid,
511 	    attributes_p, r_addr_p)) != H_EOK) {
512 		DBG(DBG_LIB_DMA, dip,
513 		    "hvio_iommu_getmap failed, ret 0x%lx\n", ret);
514 
515 		return ((ret == H_ENOMAP) ? DDI_DMA_NOMAPPING:DDI_FAILURE);
516 	}
517 
518 	DBG(DBG_LIB_DMA, dip, "px_lib_iommu_getmap: attr 0x%x r_addr 0x%llx\n",
519 	    *attributes_p, *r_addr_p);
520 
521 	return (DDI_SUCCESS);
522 }
523 
524 
525 /*
526  * Checks dma attributes against system bypass ranges
527  * The bypass range is determined by the hardware. Return them so the
528  * common code can do generic checking against them.
529  */
530 /*ARGSUSED*/
531 int
532 px_lib_dma_bypass_rngchk(ddi_dma_attr_t *attrp, uint64_t *lo_p, uint64_t *hi_p)
533 {
534 	*lo_p = MMU_BYPASS_BASE;
535 	*hi_p = MMU_BYPASS_END;
536 
537 	return (DDI_SUCCESS);
538 }
539 
540 
541 /*ARGSUSED*/
542 int
543 px_lib_iommu_getbypass(dev_info_t *dip, r_addr_t ra,
544     io_attributes_t io_attributes, io_addr_t *io_addr_p)
545 {
546 	uint64_t	ret;
547 
548 	DBG(DBG_LIB_DMA, dip, "px_lib_iommu_getbypass: dip 0x%p ra 0x%llx "
549 	    "attr 0x%x\n", dip, ra, io_attributes);
550 
551 	if ((ret = hvio_iommu_getbypass(DIP_TO_HANDLE(dip), ra,
552 	    io_attributes, io_addr_p)) != H_EOK) {
553 		DBG(DBG_LIB_DMA, dip,
554 		    "hvio_iommu_getbypass failed, ret 0x%lx\n", ret);
555 		return (DDI_FAILURE);
556 	}
557 
558 	DBG(DBG_LIB_DMA, dip, "px_lib_iommu_getbypass: io_addr 0x%llx\n",
559 	    *io_addr_p);
560 
561 	return (DDI_SUCCESS);
562 }
563 
564 /*
565  * bus dma sync entry point.
566  */
567 /*ARGSUSED*/
568 int
569 px_lib_dma_sync(dev_info_t *dip, dev_info_t *rdip, ddi_dma_handle_t handle,
570 	off_t off, size_t len, uint_t cache_flags)
571 {
572 	ddi_dma_impl_t *mp = (ddi_dma_impl_t *)handle;
573 
574 	DBG(DBG_LIB_DMA, dip, "px_lib_dma_sync: dip 0x%p rdip 0x%p "
575 	    "handle 0x%llx off 0x%x len 0x%x flags 0x%x\n",
576 	    dip, rdip, handle, off, len, cache_flags);
577 
578 	/*
579 	 * jbus_stst_order is found only in certain cpu modules.
580 	 * Just return success if not present.
581 	 */
582 	if (&jbus_stst_order == NULL)
583 		return (DDI_SUCCESS);
584 
585 	if (!(mp->dmai_flags & DMAI_FLAGS_INUSE)) {
586 		cmn_err(CE_WARN, "%s%d: Unbound dma handle %p.",
587 		    ddi_driver_name(rdip), ddi_get_instance(rdip), (void *)mp);
588 
589 		return (DDI_FAILURE);
590 	}
591 
592 	if (mp->dmai_flags & DMAI_FLAGS_NOSYNC)
593 		return (DDI_SUCCESS);
594 
595 	/*
596 	 * No flush needed when sending data from memory to device.
597 	 * Nothing to do to "sync" memory to what device would already see.
598 	 */
599 	if (!(mp->dmai_rflags & DDI_DMA_READ) ||
600 	    ((cache_flags & PX_DMA_SYNC_DDI_FLAGS) == DDI_DMA_SYNC_FORDEV))
601 		return (DDI_SUCCESS);
602 
603 	/*
604 	 * Perform necessary cpu workaround to ensure jbus ordering.
605 	 * CPU's internal "invalidate FIFOs" are flushed.
606 	 */
607 
608 #if !defined(lint)
609 	kpreempt_disable();
610 #endif
611 	jbus_stst_order();
612 #if !defined(lint)
613 	kpreempt_enable();
614 #endif
615 	return (DDI_SUCCESS);
616 }
617 
618 /*
619  * MSIQ Functions:
620  */
621 /*ARGSUSED*/
622 int
623 px_lib_msiq_init(dev_info_t *dip)
624 {
625 	px_t		*px_p = DIP_TO_STATE(dip);
626 	pxu_t		*pxu_p = (pxu_t *)px_p->px_plat_p;
627 	px_msiq_state_t	*msiq_state_p = &px_p->px_ib_p->ib_msiq_state;
628 	caddr_t		msiq_addr;
629 	px_dvma_addr_t	pg_index;
630 	size_t		size;
631 	int		ret;
632 
633 	DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_init: dip 0x%p\n", dip);
634 
635 	/*
636 	 * Map the EQ memory into the Fire MMU (has to be 512KB aligned)
637 	 * and then initialize the base address register.
638 	 *
639 	 * Allocate entries from Fire IOMMU so that the resulting address
640 	 * is properly aligned.  Calculate the index of the first allocated
641 	 * entry.  Note: The size of the mapping is assumed to be a multiple
642 	 * of the page size.
643 	 */
644 	msiq_addr = (caddr_t)(((uint64_t)msiq_state_p->msiq_buf_p +
645 	    (MMU_PAGE_SIZE - 1)) >> MMU_PAGE_SHIFT << MMU_PAGE_SHIFT);
646 
647 	size = msiq_state_p->msiq_cnt *
648 	    msiq_state_p->msiq_rec_cnt * sizeof (msiq_rec_t);
649 
650 	pxu_p->msiq_mapped_p = vmem_xalloc(px_p->px_mmu_p->mmu_dvma_map,
651 	    size, (512 * 1024), 0, 0, NULL, NULL, VM_NOSLEEP | VM_BESTFIT);
652 
653 	if (pxu_p->msiq_mapped_p == NULL)
654 		return (DDI_FAILURE);
655 
656 	pg_index = MMU_PAGE_INDEX(px_p->px_mmu_p,
657 	    MMU_BTOP((ulong_t)pxu_p->msiq_mapped_p));
658 
659 	if ((ret = px_lib_iommu_map(px_p->px_dip, PCI_TSBID(0, pg_index),
660 	    MMU_BTOP(size), PCI_MAP_ATTR_WRITE, (void *)msiq_addr, 0,
661 	    MMU_MAP_BUF)) != DDI_SUCCESS) {
662 		DBG(DBG_LIB_MSIQ, dip,
663 		    "hvio_msiq_init failed, ret 0x%lx\n", ret);
664 
665 		(void) px_lib_msiq_fini(dip);
666 		return (DDI_FAILURE);
667 	}
668 
669 	(void) hvio_msiq_init(DIP_TO_HANDLE(dip), pxu_p);
670 
671 	return (DDI_SUCCESS);
672 }
673 
674 /*ARGSUSED*/
675 int
676 px_lib_msiq_fini(dev_info_t *dip)
677 {
678 	px_t		*px_p = DIP_TO_STATE(dip);
679 	pxu_t		*pxu_p = (pxu_t *)px_p->px_plat_p;
680 	px_msiq_state_t	*msiq_state_p = &px_p->px_ib_p->ib_msiq_state;
681 	px_dvma_addr_t	pg_index;
682 	size_t		size;
683 
684 	DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_fini: dip 0x%p\n", dip);
685 
686 	/*
687 	 * Unmap and free the EQ memory that had been mapped
688 	 * into the Fire IOMMU.
689 	 */
690 	size = msiq_state_p->msiq_cnt *
691 	    msiq_state_p->msiq_rec_cnt * sizeof (msiq_rec_t);
692 
693 	pg_index = MMU_PAGE_INDEX(px_p->px_mmu_p,
694 	    MMU_BTOP((ulong_t)pxu_p->msiq_mapped_p));
695 
696 	(void) px_lib_iommu_demap(px_p->px_dip,
697 	    PCI_TSBID(0, pg_index), MMU_BTOP(size));
698 
699 	/* Free the entries from the Fire MMU */
700 	vmem_xfree(px_p->px_mmu_p->mmu_dvma_map,
701 	    (void *)pxu_p->msiq_mapped_p, size);
702 
703 	return (DDI_SUCCESS);
704 }
705 
706 /*ARGSUSED*/
707 int
708 px_lib_msiq_info(dev_info_t *dip, msiqid_t msiq_id, r_addr_t *ra_p,
709     uint_t *msiq_rec_cnt_p)
710 {
711 	px_t		*px_p = DIP_TO_STATE(dip);
712 	px_msiq_state_t	*msiq_state_p = &px_p->px_ib_p->ib_msiq_state;
713 	uint64_t	*msiq_addr;
714 	size_t		msiq_size;
715 
716 	DBG(DBG_LIB_MSIQ, dip, "px_msiq_info: dip 0x%p msiq_id 0x%x\n",
717 	    dip, msiq_id);
718 
719 	msiq_addr = (uint64_t *)(((uint64_t)msiq_state_p->msiq_buf_p +
720 	    (MMU_PAGE_SIZE - 1)) >> MMU_PAGE_SHIFT << MMU_PAGE_SHIFT);
721 	msiq_size = msiq_state_p->msiq_rec_cnt * sizeof (msiq_rec_t);
722 	ra_p = (r_addr_t *)((caddr_t)msiq_addr + (msiq_id * msiq_size));
723 
724 	*msiq_rec_cnt_p = msiq_state_p->msiq_rec_cnt;
725 
726 	DBG(DBG_LIB_MSIQ, dip, "px_msiq_info: ra_p 0x%p msiq_rec_cnt 0x%x\n",
727 	    ra_p, *msiq_rec_cnt_p);
728 
729 	return (DDI_SUCCESS);
730 }
731 
732 /*ARGSUSED*/
733 int
734 px_lib_msiq_getvalid(dev_info_t *dip, msiqid_t msiq_id,
735     pci_msiq_valid_state_t *msiq_valid_state)
736 {
737 	uint64_t	ret;
738 
739 	DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_getvalid: dip 0x%p msiq_id 0x%x\n",
740 	    dip, msiq_id);
741 
742 	if ((ret = hvio_msiq_getvalid(DIP_TO_HANDLE(dip),
743 	    msiq_id, msiq_valid_state)) != H_EOK) {
744 		DBG(DBG_LIB_MSIQ, dip,
745 		    "hvio_msiq_getvalid failed, ret 0x%lx\n", ret);
746 		return (DDI_FAILURE);
747 	}
748 
749 	DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_getvalid: msiq_valid_state 0x%x\n",
750 	    *msiq_valid_state);
751 
752 	return (DDI_SUCCESS);
753 }
754 
755 /*ARGSUSED*/
756 int
757 px_lib_msiq_setvalid(dev_info_t *dip, msiqid_t msiq_id,
758     pci_msiq_valid_state_t msiq_valid_state)
759 {
760 	uint64_t	ret;
761 
762 	DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_setvalid: dip 0x%p msiq_id 0x%x "
763 	    "msiq_valid_state 0x%x\n", dip, msiq_id, msiq_valid_state);
764 
765 	if ((ret = hvio_msiq_setvalid(DIP_TO_HANDLE(dip),
766 	    msiq_id, msiq_valid_state)) != H_EOK) {
767 		DBG(DBG_LIB_MSIQ, dip,
768 		    "hvio_msiq_setvalid failed, ret 0x%lx\n", ret);
769 		return (DDI_FAILURE);
770 	}
771 
772 	return (DDI_SUCCESS);
773 }
774 
775 /*ARGSUSED*/
776 int
777 px_lib_msiq_getstate(dev_info_t *dip, msiqid_t msiq_id,
778     pci_msiq_state_t *msiq_state)
779 {
780 	uint64_t	ret;
781 
782 	DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_getstate: dip 0x%p msiq_id 0x%x\n",
783 	    dip, msiq_id);
784 
785 	if ((ret = hvio_msiq_getstate(DIP_TO_HANDLE(dip),
786 	    msiq_id, msiq_state)) != H_EOK) {
787 		DBG(DBG_LIB_MSIQ, dip,
788 		    "hvio_msiq_getstate failed, ret 0x%lx\n", ret);
789 		return (DDI_FAILURE);
790 	}
791 
792 	DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_getstate: msiq_state 0x%x\n",
793 	    *msiq_state);
794 
795 	return (DDI_SUCCESS);
796 }
797 
798 /*ARGSUSED*/
799 int
800 px_lib_msiq_setstate(dev_info_t *dip, msiqid_t msiq_id,
801     pci_msiq_state_t msiq_state)
802 {
803 	uint64_t	ret;
804 
805 	DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_setstate: dip 0x%p msiq_id 0x%x "
806 	    "msiq_state 0x%x\n", dip, msiq_id, msiq_state);
807 
808 	if ((ret = hvio_msiq_setstate(DIP_TO_HANDLE(dip),
809 	    msiq_id, msiq_state)) != H_EOK) {
810 		DBG(DBG_LIB_MSIQ, dip,
811 		    "hvio_msiq_setstate failed, ret 0x%lx\n", ret);
812 		return (DDI_FAILURE);
813 	}
814 
815 	return (DDI_SUCCESS);
816 }
817 
818 /*ARGSUSED*/
819 int
820 px_lib_msiq_gethead(dev_info_t *dip, msiqid_t msiq_id,
821     msiqhead_t *msiq_head)
822 {
823 	uint64_t	ret;
824 
825 	DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_gethead: dip 0x%p msiq_id 0x%x\n",
826 	    dip, msiq_id);
827 
828 	if ((ret = hvio_msiq_gethead(DIP_TO_HANDLE(dip),
829 	    msiq_id, msiq_head)) != H_EOK) {
830 		DBG(DBG_LIB_MSIQ, dip,
831 		    "hvio_msiq_gethead failed, ret 0x%lx\n", ret);
832 		return (DDI_FAILURE);
833 	}
834 
835 	DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_gethead: msiq_head 0x%x\n",
836 	    *msiq_head);
837 
838 	return (DDI_SUCCESS);
839 }
840 
841 /*ARGSUSED*/
842 int
843 px_lib_msiq_sethead(dev_info_t *dip, msiqid_t msiq_id,
844     msiqhead_t msiq_head)
845 {
846 	uint64_t	ret;
847 
848 	DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_sethead: dip 0x%p msiq_id 0x%x "
849 	    "msiq_head 0x%x\n", dip, msiq_id, msiq_head);
850 
851 	if ((ret = hvio_msiq_sethead(DIP_TO_HANDLE(dip),
852 	    msiq_id, msiq_head)) != H_EOK) {
853 		DBG(DBG_LIB_MSIQ, dip,
854 		    "hvio_msiq_sethead failed, ret 0x%lx\n", ret);
855 		return (DDI_FAILURE);
856 	}
857 
858 	return (DDI_SUCCESS);
859 }
860 
861 /*ARGSUSED*/
862 int
863 px_lib_msiq_gettail(dev_info_t *dip, msiqid_t msiq_id,
864     msiqtail_t *msiq_tail)
865 {
866 	uint64_t	ret;
867 
868 	DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_gettail: dip 0x%p msiq_id 0x%x\n",
869 	    dip, msiq_id);
870 
871 	if ((ret = hvio_msiq_gettail(DIP_TO_HANDLE(dip),
872 	    msiq_id, msiq_tail)) != H_EOK) {
873 		DBG(DBG_LIB_MSIQ, dip,
874 		    "hvio_msiq_gettail failed, ret 0x%lx\n", ret);
875 		return (DDI_FAILURE);
876 	}
877 
878 	DBG(DBG_LIB_MSIQ, dip, "px_lib_msiq_gettail: msiq_tail 0x%x\n",
879 	    *msiq_tail);
880 
881 	return (DDI_SUCCESS);
882 }
883 
884 /*ARGSUSED*/
885 void
886 px_lib_get_msiq_rec(dev_info_t *dip, px_msiq_t *msiq_p, msiq_rec_t *msiq_rec_p)
887 {
888 	px_t		*px_p = DIP_TO_STATE(dip);
889 	pxu_t		*pxu_p = (pxu_t *)px_p->px_plat_p;
890 	eq_rec_t	*eq_rec_p = (eq_rec_t *)msiq_p->msiq_curr;
891 
892 	DBG(DBG_LIB_MSIQ, dip, "px_lib_get_msiq_rec: dip 0x%p eq_rec_p 0x%p\n",
893 	    dip, eq_rec_p);
894 
895 	if (!eq_rec_p->eq_rec_rid) {
896 		/* Set msiq_rec_rid to zero */
897 		msiq_rec_p->msiq_rec_rid = 0;
898 
899 		return;
900 	}
901 
902 	DBG(DBG_LIB_MSIQ, dip, "px_lib_get_msiq_rec: EQ RECORD, "
903 	    "eq_rec_rid 0x%llx eq_rec_fmt_type 0x%llx "
904 	    "eq_rec_len 0x%llx eq_rec_addr0 0x%llx "
905 	    "eq_rec_addr1 0x%llx eq_rec_data0 0x%llx "
906 	    "eq_rec_data1 0x%llx\n", eq_rec_p->eq_rec_rid,
907 	    eq_rec_p->eq_rec_fmt_type, eq_rec_p->eq_rec_len,
908 	    eq_rec_p->eq_rec_addr0, eq_rec_p->eq_rec_addr1,
909 	    eq_rec_p->eq_rec_data0, eq_rec_p->eq_rec_data1);
910 
911 	/*
912 	 * Only upper 4 bits of eq_rec_fmt_type is used
913 	 * to identify the EQ record type.
914 	 */
915 	switch (eq_rec_p->eq_rec_fmt_type >> 3) {
916 	case EQ_REC_MSI32:
917 		msiq_rec_p->msiq_rec_type = MSI32_REC;
918 
919 		if (pxu_p->chip_id == FIRE_VER_10) {
920 			msiq_rec_p->msiq_rec_data.msi.msi_data =
921 			    (eq_rec_p->eq_rec_data0 & 0xFF) << 8 |
922 			    (eq_rec_p->eq_rec_data0 & 0xFF00) >> 8;
923 		} else {
924 			/* Default case is FIRE2.0 */
925 			msiq_rec_p->msiq_rec_data.msi.msi_data =
926 			    eq_rec_p->eq_rec_data0;
927 		}
928 
929 		break;
930 	case EQ_REC_MSI64:
931 		msiq_rec_p->msiq_rec_type = MSI64_REC;
932 
933 		if (pxu_p->chip_id == FIRE_VER_10) {
934 			msiq_rec_p->msiq_rec_data.msi.msi_data =
935 			    (eq_rec_p->eq_rec_data0 & 0xFF) << 8 |
936 			    (eq_rec_p->eq_rec_data0 & 0xFF00) >> 8;
937 		} else {
938 			/* Default case is FIRE2.0 */
939 			msiq_rec_p->msiq_rec_data.msi.msi_data =
940 			    eq_rec_p->eq_rec_data0;
941 		}
942 
943 		break;
944 	case EQ_REC_MSG:
945 		msiq_rec_p->msiq_rec_type = MSG_REC;
946 
947 		msiq_rec_p->msiq_rec_data.msg.msg_route =
948 		    eq_rec_p->eq_rec_fmt_type & 7;
949 		msiq_rec_p->msiq_rec_data.msg.msg_targ = eq_rec_p->eq_rec_rid;
950 		msiq_rec_p->msiq_rec_data.msg.msg_code = eq_rec_p->eq_rec_data0;
951 		break;
952 	default:
953 		cmn_err(CE_WARN, "%s%d: px_lib_get_msiq_rec: "
954 		    "0x%lx is an unknown EQ record type",
955 		    ddi_driver_name(dip), ddi_get_instance(dip),
956 		    eq_rec_p->eq_rec_fmt_type);
957 		break;
958 	}
959 
960 	msiq_rec_p->msiq_rec_rid = eq_rec_p->eq_rec_rid;
961 	msiq_rec_p->msiq_rec_msi_addr = ((eq_rec_p->eq_rec_addr1 << 16) |
962 	    (eq_rec_p->eq_rec_addr0 << 2));
963 
964 	/* Zero out eq_rec_rid field */
965 	eq_rec_p->eq_rec_rid = 0;
966 }
967 
968 /*
969  * MSI Functions:
970  */
971 /*ARGSUSED*/
972 int
973 px_lib_msi_init(dev_info_t *dip)
974 {
975 	px_t		*px_p = DIP_TO_STATE(dip);
976 	px_msi_state_t	*msi_state_p = &px_p->px_ib_p->ib_msi_state;
977 	uint64_t	ret;
978 
979 	DBG(DBG_LIB_MSI, dip, "px_lib_msi_init: dip 0x%p\n", dip);
980 
981 	if ((ret = hvio_msi_init(DIP_TO_HANDLE(dip),
982 	    msi_state_p->msi_addr32, msi_state_p->msi_addr64)) != H_EOK) {
983 		DBG(DBG_LIB_MSIQ, dip, "px_lib_msi_init failed, ret 0x%lx\n",
984 		    ret);
985 		return (DDI_FAILURE);
986 	}
987 
988 	return (DDI_SUCCESS);
989 }
990 
991 /*ARGSUSED*/
992 int
993 px_lib_msi_getmsiq(dev_info_t *dip, msinum_t msi_num,
994     msiqid_t *msiq_id)
995 {
996 	uint64_t	ret;
997 
998 	DBG(DBG_LIB_MSI, dip, "px_lib_msi_getmsiq: dip 0x%p msi_num 0x%x\n",
999 	    dip, msi_num);
1000 
1001 	if ((ret = hvio_msi_getmsiq(DIP_TO_HANDLE(dip),
1002 	    msi_num, msiq_id)) != H_EOK) {
1003 		DBG(DBG_LIB_MSI, dip,
1004 		    "hvio_msi_getmsiq failed, ret 0x%lx\n", ret);
1005 		return (DDI_FAILURE);
1006 	}
1007 
1008 	DBG(DBG_LIB_MSI, dip, "px_lib_msi_getmsiq: msiq_id 0x%x\n",
1009 	    *msiq_id);
1010 
1011 	return (DDI_SUCCESS);
1012 }
1013 
1014 /*ARGSUSED*/
1015 int
1016 px_lib_msi_setmsiq(dev_info_t *dip, msinum_t msi_num,
1017     msiqid_t msiq_id, msi_type_t msitype)
1018 {
1019 	uint64_t	ret;
1020 
1021 	DBG(DBG_LIB_MSI, dip, "px_lib_msi_setmsiq: dip 0x%p msi_num 0x%x "
1022 	    "msq_id 0x%x\n", dip, msi_num, msiq_id);
1023 
1024 	if ((ret = hvio_msi_setmsiq(DIP_TO_HANDLE(dip),
1025 	    msi_num, msiq_id)) != H_EOK) {
1026 		DBG(DBG_LIB_MSI, dip,
1027 		    "hvio_msi_setmsiq failed, ret 0x%lx\n", ret);
1028 		return (DDI_FAILURE);
1029 	}
1030 
1031 	return (DDI_SUCCESS);
1032 }
1033 
1034 /*ARGSUSED*/
1035 int
1036 px_lib_msi_getvalid(dev_info_t *dip, msinum_t msi_num,
1037     pci_msi_valid_state_t *msi_valid_state)
1038 {
1039 	uint64_t	ret;
1040 
1041 	DBG(DBG_LIB_MSI, dip, "px_lib_msi_getvalid: dip 0x%p msi_num 0x%x\n",
1042 	    dip, msi_num);
1043 
1044 	if ((ret = hvio_msi_getvalid(DIP_TO_HANDLE(dip),
1045 	    msi_num, msi_valid_state)) != H_EOK) {
1046 		DBG(DBG_LIB_MSI, dip,
1047 		    "hvio_msi_getvalid failed, ret 0x%lx\n", ret);
1048 		return (DDI_FAILURE);
1049 	}
1050 
1051 	DBG(DBG_LIB_MSI, dip, "px_lib_msi_getvalid: msiq_id 0x%x\n",
1052 	    *msi_valid_state);
1053 
1054 	return (DDI_SUCCESS);
1055 }
1056 
1057 /*ARGSUSED*/
1058 int
1059 px_lib_msi_setvalid(dev_info_t *dip, msinum_t msi_num,
1060     pci_msi_valid_state_t msi_valid_state)
1061 {
1062 	uint64_t	ret;
1063 
1064 	DBG(DBG_LIB_MSI, dip, "px_lib_msi_setvalid: dip 0x%p msi_num 0x%x "
1065 	    "msi_valid_state 0x%x\n", dip, msi_num, msi_valid_state);
1066 
1067 	if ((ret = hvio_msi_setvalid(DIP_TO_HANDLE(dip),
1068 	    msi_num, msi_valid_state)) != H_EOK) {
1069 		DBG(DBG_LIB_MSI, dip,
1070 		    "hvio_msi_setvalid failed, ret 0x%lx\n", ret);
1071 		return (DDI_FAILURE);
1072 	}
1073 
1074 	return (DDI_SUCCESS);
1075 }
1076 
1077 /*ARGSUSED*/
1078 int
1079 px_lib_msi_getstate(dev_info_t *dip, msinum_t msi_num,
1080     pci_msi_state_t *msi_state)
1081 {
1082 	uint64_t	ret;
1083 
1084 	DBG(DBG_LIB_MSI, dip, "px_lib_msi_getstate: dip 0x%p msi_num 0x%x\n",
1085 	    dip, msi_num);
1086 
1087 	if ((ret = hvio_msi_getstate(DIP_TO_HANDLE(dip),
1088 	    msi_num, msi_state)) != H_EOK) {
1089 		DBG(DBG_LIB_MSI, dip,
1090 		    "hvio_msi_getstate failed, ret 0x%lx\n", ret);
1091 		return (DDI_FAILURE);
1092 	}
1093 
1094 	DBG(DBG_LIB_MSI, dip, "px_lib_msi_getstate: msi_state 0x%x\n",
1095 	    *msi_state);
1096 
1097 	return (DDI_SUCCESS);
1098 }
1099 
1100 /*ARGSUSED*/
1101 int
1102 px_lib_msi_setstate(dev_info_t *dip, msinum_t msi_num,
1103     pci_msi_state_t msi_state)
1104 {
1105 	uint64_t	ret;
1106 
1107 	DBG(DBG_LIB_MSI, dip, "px_lib_msi_setstate: dip 0x%p msi_num 0x%x "
1108 	    "msi_state 0x%x\n", dip, msi_num, msi_state);
1109 
1110 	if ((ret = hvio_msi_setstate(DIP_TO_HANDLE(dip),
1111 	    msi_num, msi_state)) != H_EOK) {
1112 		DBG(DBG_LIB_MSI, dip,
1113 		    "hvio_msi_setstate failed, ret 0x%lx\n", ret);
1114 		return (DDI_FAILURE);
1115 	}
1116 
1117 	return (DDI_SUCCESS);
1118 }
1119 
1120 /*
1121  * MSG Functions:
1122  */
1123 /*ARGSUSED*/
1124 int
1125 px_lib_msg_getmsiq(dev_info_t *dip, pcie_msg_type_t msg_type,
1126     msiqid_t *msiq_id)
1127 {
1128 	uint64_t	ret;
1129 
1130 	DBG(DBG_LIB_MSG, dip, "px_lib_msg_getmsiq: dip 0x%p msg_type 0x%x\n",
1131 	    dip, msg_type);
1132 
1133 	if ((ret = hvio_msg_getmsiq(DIP_TO_HANDLE(dip),
1134 	    msg_type, msiq_id)) != H_EOK) {
1135 		DBG(DBG_LIB_MSG, dip,
1136 		    "hvio_msg_getmsiq failed, ret 0x%lx\n", ret);
1137 		return (DDI_FAILURE);
1138 	}
1139 
1140 	DBG(DBG_LIB_MSI, dip, "px_lib_msg_getmsiq: msiq_id 0x%x\n",
1141 	    *msiq_id);
1142 
1143 	return (DDI_SUCCESS);
1144 }
1145 
1146 /*ARGSUSED*/
1147 int
1148 px_lib_msg_setmsiq(dev_info_t *dip, pcie_msg_type_t msg_type,
1149     msiqid_t msiq_id)
1150 {
1151 	uint64_t	ret;
1152 
1153 	DBG(DBG_LIB_MSG, dip, "px_lib_msi_setstate: dip 0x%p msg_type 0x%x "
1154 	    "msiq_id 0x%x\n", dip, msg_type, msiq_id);
1155 
1156 	if ((ret = hvio_msg_setmsiq(DIP_TO_HANDLE(dip),
1157 	    msg_type, msiq_id)) != H_EOK) {
1158 		DBG(DBG_LIB_MSG, dip,
1159 		    "hvio_msg_setmsiq failed, ret 0x%lx\n", ret);
1160 		return (DDI_FAILURE);
1161 	}
1162 
1163 	return (DDI_SUCCESS);
1164 }
1165 
1166 /*ARGSUSED*/
1167 int
1168 px_lib_msg_getvalid(dev_info_t *dip, pcie_msg_type_t msg_type,
1169     pcie_msg_valid_state_t *msg_valid_state)
1170 {
1171 	uint64_t	ret;
1172 
1173 	DBG(DBG_LIB_MSG, dip, "px_lib_msg_getvalid: dip 0x%p msg_type 0x%x\n",
1174 	    dip, msg_type);
1175 
1176 	if ((ret = hvio_msg_getvalid(DIP_TO_HANDLE(dip), msg_type,
1177 	    msg_valid_state)) != H_EOK) {
1178 		DBG(DBG_LIB_MSG, dip,
1179 		    "hvio_msg_getvalid failed, ret 0x%lx\n", ret);
1180 		return (DDI_FAILURE);
1181 	}
1182 
1183 	DBG(DBG_LIB_MSI, dip, "px_lib_msg_getvalid: msg_valid_state 0x%x\n",
1184 	    *msg_valid_state);
1185 
1186 	return (DDI_SUCCESS);
1187 }
1188 
1189 /*ARGSUSED*/
1190 int
1191 px_lib_msg_setvalid(dev_info_t *dip, pcie_msg_type_t msg_type,
1192     pcie_msg_valid_state_t msg_valid_state)
1193 {
1194 	uint64_t	ret;
1195 
1196 	DBG(DBG_LIB_MSG, dip, "px_lib_msg_setvalid: dip 0x%p msg_type 0x%x "
1197 	    "msg_valid_state 0x%x\n", dip, msg_type, msg_valid_state);
1198 
1199 	if ((ret = hvio_msg_setvalid(DIP_TO_HANDLE(dip), msg_type,
1200 	    msg_valid_state)) != H_EOK) {
1201 		DBG(DBG_LIB_MSG, dip,
1202 		    "hvio_msg_setvalid failed, ret 0x%lx\n", ret);
1203 		return (DDI_FAILURE);
1204 	}
1205 
1206 	return (DDI_SUCCESS);
1207 }
1208 
1209 /*
1210  * Suspend/Resume Functions:
1211  * Currently unsupported by hypervisor
1212  */
1213 int
1214 px_lib_suspend(dev_info_t *dip)
1215 {
1216 	px_t		*px_p = DIP_TO_STATE(dip);
1217 	pxu_t		*pxu_p = (pxu_t *)px_p->px_plat_p;
1218 	devhandle_t	dev_hdl, xbus_dev_hdl;
1219 	uint64_t	ret;
1220 
1221 	DBG(DBG_DETACH, dip, "px_lib_suspend: dip 0x%p\n", dip);
1222 
1223 	dev_hdl = (devhandle_t)pxu_p->px_address[PX_REG_CSR];
1224 	xbus_dev_hdl = (devhandle_t)pxu_p->px_address[PX_REG_XBC];
1225 
1226 	if ((ret = hvio_suspend(dev_hdl, pxu_p)) == H_EOK) {
1227 		px_p->px_cb_p->xbc_attachcnt--;
1228 		if (px_p->px_cb_p->xbc_attachcnt == 0)
1229 			if ((ret = hvio_cb_suspend(xbus_dev_hdl, pxu_p))
1230 			    != H_EOK)
1231 				px_p->px_cb_p->xbc_attachcnt++;
1232 	}
1233 
1234 	return ((ret != H_EOK) ? DDI_FAILURE: DDI_SUCCESS);
1235 }
1236 
1237 void
1238 px_lib_resume(dev_info_t *dip)
1239 {
1240 	px_t		*px_p = DIP_TO_STATE(dip);
1241 	pxu_t		*pxu_p = (pxu_t *)px_p->px_plat_p;
1242 	devhandle_t	dev_hdl, xbus_dev_hdl;
1243 	devino_t	pec_ino = px_p->px_inos[PX_INTR_PEC];
1244 	devino_t	xbc_ino = px_p->px_inos[PX_INTR_XBC];
1245 
1246 	DBG(DBG_ATTACH, dip, "px_lib_resume: dip 0x%p\n", dip);
1247 
1248 	dev_hdl = (devhandle_t)pxu_p->px_address[PX_REG_CSR];
1249 	xbus_dev_hdl = (devhandle_t)pxu_p->px_address[PX_REG_XBC];
1250 
1251 	px_p->px_cb_p->xbc_attachcnt++;
1252 	if (px_p->px_cb_p->xbc_attachcnt == 1)
1253 		hvio_cb_resume(dev_hdl, xbus_dev_hdl, xbc_ino, pxu_p);
1254 	hvio_resume(dev_hdl, pec_ino, pxu_p);
1255 }
1256 
1257 /*
1258  * PCI tool Functions:
1259  * Currently unsupported by hypervisor
1260  */
1261 /*ARGSUSED*/
1262 int
1263 px_lib_tools_dev_reg_ops(dev_info_t *dip, void *arg, int cmd, int mode)
1264 {
1265 	px_t *px_p = DIP_TO_STATE(dip);
1266 
1267 	DBG(DBG_TOOLS, dip, "px_lib_tools_dev_reg_ops: dip 0x%p arg 0x%p "
1268 	    "cmd 0x%x mode 0x%x\n", dip, arg, cmd, mode);
1269 
1270 	return (px_dev_reg_ops(dip, arg, cmd, mode, px_p));
1271 }
1272 
1273 /*ARGSUSED*/
1274 int
1275 px_lib_tools_bus_reg_ops(dev_info_t *dip, void *arg, int cmd, int mode)
1276 {
1277 	DBG(DBG_TOOLS, dip, "px_lib_tools_bus_reg_ops: dip 0x%p arg 0x%p "
1278 	    "cmd 0x%x mode 0x%x\n", dip, arg, cmd, mode);
1279 
1280 	return (px_bus_reg_ops(dip, arg, cmd, mode));
1281 }
1282 
1283 /*ARGSUSED*/
1284 int
1285 px_lib_tools_intr_admn(dev_info_t *dip, void *arg, int cmd, int mode)
1286 {
1287 	px_t *px_p = DIP_TO_STATE(dip);
1288 
1289 	DBG(DBG_TOOLS, dip, "px_lib_tools_intr_admn: dip 0x%p arg 0x%p "
1290 	    "cmd 0x%x mode 0x%x\n", dip, arg, cmd, mode);
1291 
1292 	return (px_intr_admn(dip, arg, cmd, mode, px_p));
1293 }
1294 
1295 /*
1296  * Misc Functions:
1297  * Currently unsupported by hypervisor
1298  */
1299 uint64_t
1300 px_lib_get_cb(dev_info_t *dip)
1301 {
1302 	px_t	*px_p = DIP_TO_STATE(dip);
1303 	pxu_t	*pxu_p = (pxu_t *)px_p->px_plat_p;
1304 
1305 	return (CSR_XR((caddr_t)pxu_p->px_address[PX_REG_XBC], JBUS_SCRATCH_1));
1306 }
1307 
1308 void
1309 px_lib_set_cb(dev_info_t *dip, uint64_t val)
1310 {
1311 	px_t	*px_p = DIP_TO_STATE(dip);
1312 	pxu_t	*pxu_p = (pxu_t *)px_p->px_plat_p;
1313 
1314 	CSR_XS((caddr_t)pxu_p->px_address[PX_REG_XBC], JBUS_SCRATCH_1, val);
1315 }
1316 
1317 /*ARGSUSED*/
1318 int
1319 px_lib_map_vconfig(dev_info_t *dip,
1320 	ddi_map_req_t *mp, pci_config_offset_t off,
1321 		pci_regspec_t *rp, caddr_t *addrp)
1322 {
1323 	/*
1324 	 * No special config space access services in this layer.
1325 	 */
1326 	return (DDI_FAILURE);
1327 }
1328 
1329 static void
1330 px_lib_clr_errs(px_t *px_p, px_pec_t *pec_p)
1331 {
1332 	dev_info_t	*rpdip = px_p->px_dip;
1333 	px_cb_t		*cb_p = px_p->px_cb_p;
1334 	int		err = PX_OK, ret;
1335 	int		acctype = pec_p->pec_safeacc_type;
1336 	ddi_fm_error_t	derr;
1337 
1338 	/* Create the derr */
1339 	bzero(&derr, sizeof (ddi_fm_error_t));
1340 	derr.fme_version = DDI_FME_VERSION;
1341 	derr.fme_ena = fm_ena_generate(0, FM_ENA_FMT1);
1342 	derr.fme_flag = acctype;
1343 
1344 	if (acctype == DDI_FM_ERR_EXPECTED) {
1345 		derr.fme_status = DDI_FM_NONFATAL;
1346 		ndi_fm_acc_err_set(pec_p->pec_acc_hdl, &derr);
1347 	}
1348 
1349 	mutex_enter(&cb_p->xbc_fm_mutex);
1350 
1351 	/* send ereport/handle/clear fire registers */
1352 	err = px_err_handle(px_p, &derr, PX_LIB_CALL, B_TRUE);
1353 
1354 	/* Check all child devices for errors */
1355 	ret = ndi_fm_handler_dispatch(rpdip, NULL, &derr);
1356 
1357 	mutex_exit(&cb_p->xbc_fm_mutex);
1358 
1359 	/*
1360 	 * PX_FATAL_HW indicates a condition recovered from Fatal-Reset,
1361 	 * therefore it does not cause panic.
1362 	 */
1363 	if ((err & (PX_FATAL_GOS | PX_FATAL_SW)) || (ret == DDI_FM_FATAL))
1364 		fm_panic("Fatal System Port Error has occurred\n");
1365 }
1366 
1367 #ifdef  DEBUG
1368 int	px_peekfault_cnt = 0;
1369 int	px_pokefault_cnt = 0;
1370 #endif  /* DEBUG */
1371 
1372 /*ARGSUSED*/
1373 static int
1374 px_lib_do_poke(dev_info_t *dip, dev_info_t *rdip,
1375     peekpoke_ctlops_t *in_args)
1376 {
1377 	px_t *px_p = DIP_TO_STATE(dip);
1378 	px_pec_t *pec_p = px_p->px_pec_p;
1379 	int err = DDI_SUCCESS;
1380 	on_trap_data_t otd;
1381 
1382 	mutex_enter(&pec_p->pec_pokefault_mutex);
1383 	pec_p->pec_ontrap_data = &otd;
1384 	pec_p->pec_safeacc_type = DDI_FM_ERR_POKE;
1385 
1386 	/* Set up protected environment. */
1387 	if (!on_trap(&otd, OT_DATA_ACCESS)) {
1388 		uintptr_t tramp = otd.ot_trampoline;
1389 
1390 		otd.ot_trampoline = (uintptr_t)&poke_fault;
1391 		err = do_poke(in_args->size, (void *)in_args->dev_addr,
1392 		    (void *)in_args->host_addr);
1393 		otd.ot_trampoline = tramp;
1394 	} else
1395 		err = DDI_FAILURE;
1396 
1397 	px_lib_clr_errs(px_p, pec_p);
1398 
1399 	if (otd.ot_trap & OT_DATA_ACCESS)
1400 		err = DDI_FAILURE;
1401 
1402 	/* Take down protected environment. */
1403 	no_trap();
1404 
1405 	pec_p->pec_ontrap_data = NULL;
1406 	pec_p->pec_safeacc_type = DDI_FM_ERR_UNEXPECTED;
1407 	mutex_exit(&pec_p->pec_pokefault_mutex);
1408 
1409 #ifdef  DEBUG
1410 	if (err == DDI_FAILURE)
1411 		px_pokefault_cnt++;
1412 #endif
1413 	return (err);
1414 }
1415 
1416 /*ARGSUSED*/
1417 static int
1418 px_lib_do_caut_put(dev_info_t *dip, dev_info_t *rdip,
1419     peekpoke_ctlops_t *cautacc_ctlops_arg)
1420 {
1421 	size_t size = cautacc_ctlops_arg->size;
1422 	uintptr_t dev_addr = cautacc_ctlops_arg->dev_addr;
1423 	uintptr_t host_addr = cautacc_ctlops_arg->host_addr;
1424 	ddi_acc_impl_t *hp = (ddi_acc_impl_t *)cautacc_ctlops_arg->handle;
1425 	size_t repcount = cautacc_ctlops_arg->repcount;
1426 	uint_t flags = cautacc_ctlops_arg->flags;
1427 
1428 	px_t *px_p = DIP_TO_STATE(dip);
1429 	px_pec_t *pec_p = px_p->px_pec_p;
1430 	int err = DDI_SUCCESS;
1431 
1432 	/*
1433 	 * Note that i_ndi_busop_access_enter ends up grabbing the pokefault
1434 	 * mutex.
1435 	 */
1436 	i_ndi_busop_access_enter(hp->ahi_common.ah_dip, (ddi_acc_handle_t)hp);
1437 
1438 	pec_p->pec_ontrap_data = (on_trap_data_t *)hp->ahi_err->err_ontrap;
1439 	pec_p->pec_safeacc_type = DDI_FM_ERR_EXPECTED;
1440 	hp->ahi_err->err_expected = DDI_FM_ERR_EXPECTED;
1441 
1442 	if (!i_ddi_ontrap((ddi_acc_handle_t)hp)) {
1443 		for (; repcount; repcount--) {
1444 			switch (size) {
1445 
1446 			case sizeof (uint8_t):
1447 				i_ddi_put8(hp, (uint8_t *)dev_addr,
1448 				    *(uint8_t *)host_addr);
1449 				break;
1450 
1451 			case sizeof (uint16_t):
1452 				i_ddi_put16(hp, (uint16_t *)dev_addr,
1453 				    *(uint16_t *)host_addr);
1454 				break;
1455 
1456 			case sizeof (uint32_t):
1457 				i_ddi_put32(hp, (uint32_t *)dev_addr,
1458 				    *(uint32_t *)host_addr);
1459 				break;
1460 
1461 			case sizeof (uint64_t):
1462 				i_ddi_put64(hp, (uint64_t *)dev_addr,
1463 				    *(uint64_t *)host_addr);
1464 				break;
1465 			}
1466 
1467 			host_addr += size;
1468 
1469 			if (flags == DDI_DEV_AUTOINCR)
1470 				dev_addr += size;
1471 
1472 			px_lib_clr_errs(px_p, pec_p);
1473 
1474 			if (pec_p->pec_ontrap_data->ot_trap & OT_DATA_ACCESS) {
1475 				err = DDI_FAILURE;
1476 #ifdef  DEBUG
1477 				px_pokefault_cnt++;
1478 #endif
1479 				break;
1480 			}
1481 		}
1482 	}
1483 
1484 	i_ddi_notrap((ddi_acc_handle_t)hp);
1485 	pec_p->pec_ontrap_data = NULL;
1486 	pec_p->pec_safeacc_type = DDI_FM_ERR_UNEXPECTED;
1487 	i_ndi_busop_access_exit(hp->ahi_common.ah_dip, (ddi_acc_handle_t)hp);
1488 	hp->ahi_err->err_expected = DDI_FM_ERR_UNEXPECTED;
1489 
1490 	return (err);
1491 }
1492 
1493 
1494 int
1495 px_lib_ctlops_poke(dev_info_t *dip, dev_info_t *rdip,
1496     peekpoke_ctlops_t *in_args)
1497 {
1498 	return (in_args->handle ? px_lib_do_caut_put(dip, rdip, in_args) :
1499 	    px_lib_do_poke(dip, rdip, in_args));
1500 }
1501 
1502 
1503 /*ARGSUSED*/
1504 static int
1505 px_lib_do_peek(dev_info_t *dip, peekpoke_ctlops_t *in_args)
1506 {
1507 	px_t *px_p = DIP_TO_STATE(dip);
1508 	px_pec_t *pec_p = px_p->px_pec_p;
1509 	int err = DDI_SUCCESS;
1510 	on_trap_data_t otd;
1511 
1512 	mutex_enter(&pec_p->pec_pokefault_mutex);
1513 	pec_p->pec_safeacc_type = DDI_FM_ERR_PEEK;
1514 
1515 	if (!on_trap(&otd, OT_DATA_ACCESS)) {
1516 		uintptr_t tramp = otd.ot_trampoline;
1517 
1518 		otd.ot_trampoline = (uintptr_t)&peek_fault;
1519 		err = do_peek(in_args->size, (void *)in_args->dev_addr,
1520 		    (void *)in_args->host_addr);
1521 		otd.ot_trampoline = tramp;
1522 	} else
1523 		err = DDI_FAILURE;
1524 
1525 	no_trap();
1526 	pec_p->pec_safeacc_type = DDI_FM_ERR_UNEXPECTED;
1527 	mutex_exit(&pec_p->pec_pokefault_mutex);
1528 
1529 #ifdef  DEBUG
1530 	if (err == DDI_FAILURE)
1531 		px_peekfault_cnt++;
1532 #endif
1533 	return (err);
1534 }
1535 
1536 
1537 static int
1538 px_lib_do_caut_get(dev_info_t *dip, peekpoke_ctlops_t *cautacc_ctlops_arg)
1539 {
1540 	size_t size = cautacc_ctlops_arg->size;
1541 	uintptr_t dev_addr = cautacc_ctlops_arg->dev_addr;
1542 	uintptr_t host_addr = cautacc_ctlops_arg->host_addr;
1543 	ddi_acc_impl_t *hp = (ddi_acc_impl_t *)cautacc_ctlops_arg->handle;
1544 	size_t repcount = cautacc_ctlops_arg->repcount;
1545 	uint_t flags = cautacc_ctlops_arg->flags;
1546 
1547 	px_t *px_p = DIP_TO_STATE(dip);
1548 	px_pec_t *pec_p = px_p->px_pec_p;
1549 	int err = DDI_SUCCESS;
1550 
1551 	/*
1552 	 * Note that i_ndi_busop_access_enter ends up grabbing the pokefault
1553 	 * mutex.
1554 	 */
1555 	i_ndi_busop_access_enter(hp->ahi_common.ah_dip, (ddi_acc_handle_t)hp);
1556 
1557 	pec_p->pec_ontrap_data = (on_trap_data_t *)hp->ahi_err->err_ontrap;
1558 	pec_p->pec_safeacc_type = DDI_FM_ERR_EXPECTED;
1559 	hp->ahi_err->err_expected = DDI_FM_ERR_EXPECTED;
1560 
1561 	if (repcount == 1) {
1562 		if (!i_ddi_ontrap((ddi_acc_handle_t)hp)) {
1563 			i_ddi_caut_get(size, (void *)dev_addr,
1564 			    (void *)host_addr);
1565 		} else {
1566 			int i;
1567 			uint8_t *ff_addr = (uint8_t *)host_addr;
1568 			for (i = 0; i < size; i++)
1569 				*ff_addr++ = 0xff;
1570 
1571 			err = DDI_FAILURE;
1572 #ifdef  DEBUG
1573 			px_peekfault_cnt++;
1574 #endif
1575 		}
1576 	} else {
1577 		if (!i_ddi_ontrap((ddi_acc_handle_t)hp)) {
1578 			for (; repcount; repcount--) {
1579 				i_ddi_caut_get(size, (void *)dev_addr,
1580 				    (void *)host_addr);
1581 
1582 				host_addr += size;
1583 
1584 				if (flags == DDI_DEV_AUTOINCR)
1585 					dev_addr += size;
1586 			}
1587 		} else {
1588 			err = DDI_FAILURE;
1589 #ifdef  DEBUG
1590 			px_peekfault_cnt++;
1591 #endif
1592 		}
1593 	}
1594 
1595 	i_ddi_notrap((ddi_acc_handle_t)hp);
1596 	pec_p->pec_ontrap_data = NULL;
1597 	pec_p->pec_safeacc_type = DDI_FM_ERR_UNEXPECTED;
1598 	i_ndi_busop_access_exit(hp->ahi_common.ah_dip, (ddi_acc_handle_t)hp);
1599 	hp->ahi_err->err_expected = DDI_FM_ERR_UNEXPECTED;
1600 
1601 	return (err);
1602 }
1603 
1604 /*ARGSUSED*/
1605 int
1606 px_lib_ctlops_peek(dev_info_t *dip, dev_info_t *rdip,
1607     peekpoke_ctlops_t *in_args, void *result)
1608 {
1609 	result = (void *)in_args->host_addr;
1610 	return (in_args->handle ? px_lib_do_caut_get(dip, in_args) :
1611 	    px_lib_do_peek(dip, in_args));
1612 }
1613 /*
1614  * implements PPM interface
1615  */
1616 int
1617 px_lib_pmctl(int cmd, px_t *px_p)
1618 {
1619 	ASSERT((cmd & ~PPMREQ_MASK) == PPMREQ);
1620 	switch (cmd) {
1621 	case PPMREQ_PRE_PWR_OFF:
1622 		/*
1623 		 * Currently there is no device power management for
1624 		 * the root complex (fire). When there is we need to make
1625 		 * sure that it is at full power before trying to send the
1626 		 * PME_Turn_Off message.
1627 		 */
1628 		DBG(DBG_PWR, px_p->px_dip,
1629 		    "ioctl: request to send PME_Turn_Off\n");
1630 		return (px_goto_l23ready(px_p));
1631 
1632 	case PPMREQ_PRE_PWR_ON:
1633 	case PPMREQ_POST_PWR_ON:
1634 		/* code to be written for Fire 2.0. return failure for now */
1635 		return (DDI_FAILURE);
1636 
1637 	default:
1638 		return (DDI_FAILURE);
1639 	}
1640 }
1641 
1642 /*
1643  * sends PME_Turn_Off message to put the link in L2/L3 ready state.
1644  * called by px_ioctl.
1645  * returns DDI_SUCCESS or DDI_FAILURE
1646  * 1. Wait for link to be in L1 state (link status reg)
1647  * 2. write to PME_Turn_off reg to boradcast
1648  * 3. set timeout
1649  * 4. If timeout, return failure.
1650  * 5. If PM_TO_Ack, wait till link is in L2/L3 ready
1651  */
1652 static int
1653 px_goto_l23ready(px_t *px_p)
1654 {
1655 	pcie_pwr_t	*pwr_p;
1656 	pxu_t		*pxu_p = (pxu_t *)px_p->px_plat_p;
1657 	caddr_t	csr_base = (caddr_t)pxu_p->px_address[PX_REG_CSR];
1658 	int		ret = DDI_SUCCESS;
1659 	clock_t		end, timeleft;
1660 
1661 	/* If no PM info, return failure */
1662 	if (!PCIE_PMINFO(px_p->px_dip) ||
1663 	    !(pwr_p = PCIE_NEXUS_PMINFO(px_p->px_dip)))
1664 		return (DDI_FAILURE);
1665 
1666 	mutex_enter(&pwr_p->pwr_lock);
1667 	mutex_enter(&pwr_p->pwr_intr_lock);
1668 	/* Clear the PME_To_ACK receieved flag */
1669 	pwr_p->pwr_flags &= ~PCIE_PMETOACK_RECVD;
1670 	if (px_send_pme_turnoff(csr_base) != DDI_SUCCESS) {
1671 		ret = DDI_FAILURE;
1672 		goto l23ready_done;
1673 	}
1674 	pwr_p->pwr_flags |= PCIE_PME_TURNOFF_PENDING;
1675 
1676 	end = ddi_get_lbolt() + drv_usectohz(px_pme_to_ack_timeout);
1677 	while (!(pwr_p->pwr_flags & PCIE_PMETOACK_RECVD)) {
1678 		timeleft = cv_timedwait(&pwr_p->pwr_cv,
1679 		    &pwr_p->pwr_intr_lock, end);
1680 		/*
1681 		 * if cv_timedwait returns -1, it is either
1682 		 * 1) timed out or
1683 		 * 2) there was a pre-mature wakeup but by the time
1684 		 * cv_timedwait is called again end < lbolt i.e.
1685 		 * end is in the past.
1686 		 * 3) By the time we make first cv_timedwait call,
1687 		 * end < lbolt is true.
1688 		 */
1689 		if (timeleft == -1)
1690 			break;
1691 	}
1692 	if (!(pwr_p->pwr_flags & PCIE_PMETOACK_RECVD)) {
1693 		/*
1694 		 * Either timedout or interrupt didn't get a
1695 		 * chance to grab the mutex and set the flag.
1696 		 * release the mutex and delay for sometime.
1697 		 * This will 1) give a chance for interrupt to
1698 		 * set the flag 2) creates a delay between two
1699 		 * consequetive requests.
1700 		 */
1701 		mutex_exit(&pwr_p->pwr_intr_lock);
1702 		delay(5);
1703 		mutex_enter(&pwr_p->pwr_intr_lock);
1704 		if (!(pwr_p->pwr_flags & PCIE_PMETOACK_RECVD)) {
1705 			ret = DDI_FAILURE;
1706 			DBG(DBG_PWR, px_p->px_dip, " Timed out while waiting"
1707 			    " for PME_TO_ACK\n");
1708 		}
1709 	}
1710 	/* PME_To_ACK receieved */
1711 	pwr_p->pwr_flags &= ~(PCIE_PME_TURNOFF_PENDING | PCIE_PMETOACK_RECVD);
1712 
1713 	/* TBD: wait till link is in L2/L3 ready (link status reg) */
1714 
1715 l23ready_done:
1716 	mutex_exit(&pwr_p->pwr_intr_lock);
1717 	mutex_exit(&pwr_p->pwr_lock);
1718 	return (ret);
1719 }
1720 
1721 
1722 /*
1723  * Extract the drivers binding name to identify which chip we're binding to.
1724  * Whenever a new bus bridge is created, the driver alias entry should be
1725  * added here to identify the device if needed.  If a device isn't added,
1726  * the identity defaults to PX_CHIP_UNIDENTIFIED.
1727  */
1728 static uint32_t
1729 px_identity_chip(px_t *px_p)
1730 {
1731 	dev_info_t	*dip = px_p->px_dip;
1732 	char		*name = ddi_binding_name(dip);
1733 	uint32_t	revision = 0;
1734 
1735 	revision = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
1736 	    "module-revision#", 0);
1737 
1738 	/* Check for Fire driver binding name */
1739 	if (strcmp(name, "pci108e,80f0") == 0) {
1740 		DBG(DBG_ATTACH, dip, "px_identity_chip: %s%d: "
1741 		    "name %s module-revision %d\n", ddi_driver_name(dip),
1742 		    ddi_get_instance(dip), name, revision);
1743 
1744 		return (PX_CHIP_ID(PX_CHIP_FIRE, revision, 0x00));
1745 	}
1746 
1747 	DBG(DBG_ATTACH, dip, "%s%d: Unknown PCI Express Host bridge %s %x\n",
1748 	    ddi_driver_name(dip), ddi_get_instance(dip), name, revision);
1749 
1750 	return (PX_CHIP_UNIDENTIFIED);
1751 }
1752 
1753 int
1754 px_err_add_intr(px_fault_t *px_fault_p)
1755 {
1756 	dev_info_t	*dip = px_fault_p->px_fh_dip;
1757 	px_t		*px_p = DIP_TO_STATE(dip);
1758 
1759 	VERIFY(add_ivintr(px_fault_p->px_fh_sysino, PX_ERR_PIL,
1760 		px_fault_p->px_err_func, (caddr_t)px_fault_p, NULL) == 0);
1761 
1762 	px_ib_intr_enable(px_p, intr_dist_cpuid(), px_fault_p->px_intr_ino);
1763 
1764 	return (DDI_SUCCESS);
1765 }
1766 
1767 void
1768 px_err_rem_intr(px_fault_t *px_fault_p)
1769 {
1770 	dev_info_t	*dip = px_fault_p->px_fh_dip;
1771 	px_t		*px_p = DIP_TO_STATE(dip);
1772 
1773 	rem_ivintr(px_fault_p->px_fh_sysino, NULL);
1774 
1775 	px_ib_intr_disable(px_p->px_ib_p, px_fault_p->px_intr_ino,
1776 		IB_INTR_WAIT);
1777 }
1778 
1779 #ifdef FMA
1780 void
1781 px_fill_rc_status(px_fault_t *px_fault_p, pciex_rc_error_regs_t *rc_status)
1782 {
1783 	/* populate the rc_status by reading the registers - TBD */
1784 }
1785 #endif /* FMA */
1786