38 static unsigned int sata_pmp_read(struct ata_link *link, int reg, u32 *r_val)  in sata_pmp_read()  argument
40 	struct ata_port *ap = link->ap;  in sata_pmp_read()
41 	struct ata_device *pmp_dev = ap->link.device;  in sata_pmp_read()
50 	tf.device = link->pmp;  in sata_pmp_read()
75 static unsigned int sata_pmp_write(struct ata_link *link, int reg, u32 val)  in sata_pmp_write()  argument
77 	struct ata_port *ap = link->ap;  in sata_pmp_write()
78 	struct ata_device *pmp_dev = ap->link.device;  in sata_pmp_write()
86 	tf.device = link->pmp;  in sata_pmp_write()
111 	struct ata_link *link = qc->dev->link;  in sata_pmp_qc_defer_cmd_switch()  local
112 	struct ata_port *ap = link->ap;  in sata_pmp_qc_defer_cmd_switch()
114 	if (ap->excl_link == NULL || ap->excl_link == link) {  in sata_pmp_qc_defer_cmd_switch()
115 		if (ap->nr_active_links == 0 || ata_link_active(link)) {  in sata_pmp_qc_defer_cmd_switch()
120 		ap->excl_link = link;  in sata_pmp_qc_defer_cmd_switch()
141 int sata_pmp_scr_read(struct ata_link *link, int reg, u32 *r_val)  in sata_pmp_scr_read()  argument
148 	err_mask = sata_pmp_read(link, reg, r_val);  in sata_pmp_scr_read()
150 		ata_link_warn(link, "failed to read SCR %d (Emask=0x%x)\n",  in sata_pmp_scr_read()
172 int sata_pmp_scr_write(struct ata_link *link, int reg, u32 val)  in sata_pmp_scr_write()  argument
179 	err_mask = sata_pmp_write(link, reg, val);  in sata_pmp_scr_write()
181 		ata_link_warn(link, "failed to write SCR %d (Emask=0x%x)\n",  in sata_pmp_scr_write()
203 int sata_pmp_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,  in sata_pmp_set_lpm()  argument
206 	return sata_link_scr_lpm(link, policy, true);  in sata_pmp_set_lpm()
232 		err_mask = sata_pmp_read(dev->link, reg, &gscr[reg]);  in sata_pmp_read_gscr()
260 	struct ata_port *ap = dev->link->ap;  in sata_pmp_configure()
281 	err_mask = sata_pmp_write(dev->link, SATA_PMP_GSCR_ERROR_EN,  in sata_pmp_configure()
298 		err_mask = sata_pmp_read(&ap->link, PMP_GSCR_SII_POL, &reg);  in sata_pmp_configure()
305 		err_mask = sata_pmp_write(&ap->link, PMP_GSCR_SII_POL, reg);  in sata_pmp_configure()
361 		struct ata_link *link = &pmp_link[i];  in sata_pmp_init_links()  local
362 		struct ata_eh_context *ehc = &link->eh_context;  in sata_pmp_init_links()
364 		link->flags = 0;  in sata_pmp_init_links()
380 	u32 *gscr = ap->link.device->gscr;  in sata_pmp_quirks()
383 	struct ata_link *link;  in sata_pmp_quirks()  local
387 		ata_for_each_link(link, ap, EDGE) {  in sata_pmp_quirks()
389 			link->flags |= ATA_LFLAG_NO_LPM;  in sata_pmp_quirks()
395 			if (link->pmp < 5)  in sata_pmp_quirks()
396 				link->flags |= ATA_LFLAG_NO_SRST |  in sata_pmp_quirks()
400 			if (link->pmp == 5)  in sata_pmp_quirks()
401 				link->flags |= ATA_LFLAG_NO_SRST |  in sata_pmp_quirks()
412 		ata_for_each_link(link, ap, EDGE)  in sata_pmp_quirks()
413 			link->flags |= ATA_LFLAG_NO_LPM |  in sata_pmp_quirks()
418 		ata_for_each_link(link, ap, EDGE) {  in sata_pmp_quirks()
420 			link->flags |= ATA_LFLAG_NO_LPM;  in sata_pmp_quirks()
427 			if (link->pmp <= 5)  in sata_pmp_quirks()
428 				link->flags |= ATA_LFLAG_NO_SRST |  in sata_pmp_quirks()
434 			if (link->pmp == 6)  in sata_pmp_quirks()
435 				link->flags |= ATA_LFLAG_NO_SRST |  in sata_pmp_quirks()
454 		ata_for_each_link(link, ap, EDGE) {  in sata_pmp_quirks()
458 			link->flags |= ATA_LFLAG_NO_LPM |  in sata_pmp_quirks()
464 		ata_for_each_link(link, ap, EDGE) {  in sata_pmp_quirks()
466 			if (link->pmp == 4)  in sata_pmp_quirks()
467 				link->flags |= ATA_LFLAG_DISABLED;  in sata_pmp_quirks()
487 	struct ata_link *link = dev->link;  in sata_pmp_attach()  local
488 	struct ata_port *ap = link->ap;  in sata_pmp_attach()
499 	if (!ata_is_host_link(link)) {  in sata_pmp_attach()
509 	WARN_ON(link->pmp != 0);  in sata_pmp_attach()
510 	link->pmp = SATA_PMP_CTRL_PORT;  in sata_pmp_attach()
545 	link->pmp = 0;  in sata_pmp_attach()
561 	struct ata_link *link = dev->link;  in sata_pmp_detach()  local
562 	struct ata_port *ap = link->ap;  in sata_pmp_detach()
568 	WARN_ON(!ata_is_host_link(link) || dev->devno ||  in sata_pmp_detach()
569 		link->pmp != SATA_PMP_CTRL_PORT);  in sata_pmp_detach()
579 	link->pmp = 0;  in sata_pmp_detach()
650 	struct ata_link *link = dev->link;  in sata_pmp_revalidate()  local
651 	struct ata_port *ap = link->ap;  in sata_pmp_revalidate()
655 	ata_eh_about_to_do(link, NULL, ATA_EH_REVALIDATE);  in sata_pmp_revalidate()
685 	ata_eh_done(link, NULL, ATA_EH_REVALIDATE);  in sata_pmp_revalidate()
711 	err_mask = sata_pmp_read(dev->link, SATA_PMP_GSCR_PROD_ID, &prod_id);  in sata_pmp_revalidate_quick()
751 	struct ata_link *link = &ap->link;  in sata_pmp_eh_recover_pmp()  local
752 	struct ata_eh_context *ehc = &link->eh_context;  in sata_pmp_eh_recover_pmp()
753 	struct ata_device *dev = link->device;  in sata_pmp_eh_recover_pmp()
771 		rc = ata_eh_reset(link, 0, prereset, softreset, hardreset,  in sata_pmp_eh_recover_pmp()
774 			ata_link_err(link, "failed to reset PMP, giving up\n");  in sata_pmp_eh_recover_pmp()
808 				sata_down_spd_limit(link, 0);  in sata_pmp_eh_recover_pmp()
839 	struct ata_link *link;  in sata_pmp_eh_handle_disabled_links()  local
845 	ata_for_each_link(link, ap, EDGE) {  in sata_pmp_eh_handle_disabled_links()
846 		if (!(link->flags & ATA_LFLAG_DISABLED))  in sata_pmp_eh_handle_disabled_links()
854 		sata_link_hardreset(link, sata_deb_timing_normal,  in sata_pmp_eh_handle_disabled_links()
859 		rc = sata_scr_write(link, SCR_ERROR, SERR_PHYRDY_CHG);  in sata_pmp_eh_handle_disabled_links()
861 			ata_link_err(link,  in sata_pmp_eh_handle_disabled_links()
875 static int sata_pmp_handle_link_fail(struct ata_link *link, int *link_tries)  in sata_pmp_handle_link_fail()  argument
877 	struct ata_port *ap = link->ap;  in sata_pmp_handle_link_fail()
880 	if (link_tries[link->pmp] && --link_tries[link->pmp])  in sata_pmp_handle_link_fail()
884 	if (!(link->flags & ATA_LFLAG_DISABLED)) {  in sata_pmp_handle_link_fail()
885 		ata_link_warn(link,  in sata_pmp_handle_link_fail()
890 		link->flags |= ATA_LFLAG_DISABLED;  in sata_pmp_handle_link_fail()
894 	ata_dev_disable(link->device);  in sata_pmp_handle_link_fail()
895 	link->eh_context.i.action = 0;  in sata_pmp_handle_link_fail()
919 	struct ata_link *pmp_link = &ap->link;  in sata_pmp_eh_recover()
923 	struct ata_link *link;  in sata_pmp_eh_recover()  local
930 	ata_for_each_link(link, ap, EDGE)  in sata_pmp_eh_recover()
931 		link_tries[link->pmp] = ATA_EH_PMP_LINK_TRIES;  in sata_pmp_eh_recover()
939 			ata_for_each_dev(dev, &ap->link, ALL)  in sata_pmp_eh_recover()
948 		ata_for_each_link(link, ap, EDGE)  in sata_pmp_eh_recover()
949 			link_tries[link->pmp] = ATA_EH_PMP_LINK_TRIES;  in sata_pmp_eh_recover()
983 			    ops->pmp_hardreset, ops->pmp_postreset, &link);  in sata_pmp_eh_recover()
988 	rc = sata_scr_read(&ap->link, SCR_NOTIFICATION, &sntf);  in sata_pmp_eh_recover()
990 		sata_scr_write(&ap->link, SCR_NOTIFICATION, sntf);  in sata_pmp_eh_recover()
996 	ata_for_each_link(link, ap, EDGE)  in sata_pmp_eh_recover()
997 		if (link->lpm_policy > ATA_LPM_MAX_POWER)  in sata_pmp_eh_recover()
1032 	ata_for_each_link(link, ap, EDGE) {  in sata_pmp_eh_recover()
1033 		if (!(gscr_error & (1 << link->pmp)))  in sata_pmp_eh_recover()
1036 		if (sata_pmp_handle_link_fail(link, link_tries)) {  in sata_pmp_eh_recover()
1037 			ata_ehi_hotplugged(&link->eh_context.i);  in sata_pmp_eh_recover()
1040 			ata_link_warn(link,  in sata_pmp_eh_recover()
1042 			ata_link_warn(link,  in sata_pmp_eh_recover()
1056 	if (sata_pmp_handle_link_fail(link, link_tries)) {  in sata_pmp_eh_recover()