| cio.c (762f99f4f3cb41a775b5157dd761217beba65873) | cio.c (5c2e5a0cf5b12c156b0cb07af43b51627c086480) |
|---|---|
| 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * S/390 common I/O routines -- low level i/o calls 4 * 5 * Copyright IBM Corp. 1999, 2008 6 * Author(s): Ingo Adlung (adlung@de.ibm.com) 7 * Cornelia Huck (cornelia.huck@de.ibm.com) 8 * Arnd Bergmann (arndb@de.ibm.com) --- 120 unchanged lines hidden (view full) --- 129 union orb *orb = &priv->orb; 130 int ccode; 131 132 CIO_TRACE_EVENT(5, "stIO"); 133 CIO_TRACE_EVENT(5, dev_name(&sch->dev)); 134 135 memset(orb, 0, sizeof(union orb)); 136 /* sch is always under 2G. */ | 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * S/390 common I/O routines -- low level i/o calls 4 * 5 * Copyright IBM Corp. 1999, 2008 6 * Author(s): Ingo Adlung (adlung@de.ibm.com) 7 * Cornelia Huck (cornelia.huck@de.ibm.com) 8 * Arnd Bergmann (arndb@de.ibm.com) --- 120 unchanged lines hidden (view full) --- 129 union orb *orb = &priv->orb; 130 int ccode; 131 132 CIO_TRACE_EVENT(5, "stIO"); 133 CIO_TRACE_EVENT(5, dev_name(&sch->dev)); 134 135 memset(orb, 0, sizeof(union orb)); 136 /* sch is always under 2G. */ |
| 137 orb->cmd.intparm = (u32)(addr_t)sch; | 137 orb->cmd.intparm = (u32)virt_to_phys(sch); |
| 138 orb->cmd.fmt = 1; 139 140 orb->cmd.pfch = priv->options.prefetch == 0; 141 orb->cmd.spnd = priv->options.suspend; 142 orb->cmd.ssic = priv->options.suspend && priv->options.inter; 143 orb->cmd.lpm = (lpm != 0) ? lpm : sch->lpm; 144 /* 145 * for 64 bit we always support 64 bit IDAWs with 4k page size only 146 */ 147 orb->cmd.c64 = 1; 148 orb->cmd.i2k = 0; 149 orb->cmd.key = key >> 4; 150 /* issue "Start Subchannel" */ | 138 orb->cmd.fmt = 1; 139 140 orb->cmd.pfch = priv->options.prefetch == 0; 141 orb->cmd.spnd = priv->options.suspend; 142 orb->cmd.ssic = priv->options.suspend && priv->options.inter; 143 orb->cmd.lpm = (lpm != 0) ? lpm : sch->lpm; 144 /* 145 * for 64 bit we always support 64 bit IDAWs with 4k page size only 146 */ 147 orb->cmd.c64 = 1; 148 orb->cmd.i2k = 0; 149 orb->cmd.key = key >> 4; 150 /* issue "Start Subchannel" */ |
| 151 orb->cmd.cpa = (__u32) __pa(cpa); | 151 orb->cmd.cpa = (u32)virt_to_phys(cpa); |
| 152 ccode = ssch(sch->schid, orb); 153 154 /* process condition code */ 155 CIO_HEX_EVENT(5, &ccode, sizeof(ccode)); 156 157 switch (ccode) { 158 case 0: 159 /* --- 374 unchanged lines hidden (view full) --- 534 struct tpi_info *tpi_info; 535 struct subchannel *sch; 536 struct irb *irb; 537 538 set_cpu_flag(CIF_NOHZ_DELAY); 539 tpi_info = &get_irq_regs()->tpi_info; 540 trace_s390_cio_interrupt(tpi_info); 541 irb = this_cpu_ptr(&cio_irb); | 152 ccode = ssch(sch->schid, orb); 153 154 /* process condition code */ 155 CIO_HEX_EVENT(5, &ccode, sizeof(ccode)); 156 157 switch (ccode) { 158 case 0: 159 /* --- 374 unchanged lines hidden (view full) --- 534 struct tpi_info *tpi_info; 535 struct subchannel *sch; 536 struct irb *irb; 537 538 set_cpu_flag(CIF_NOHZ_DELAY); 539 tpi_info = &get_irq_regs()->tpi_info; 540 trace_s390_cio_interrupt(tpi_info); 541 irb = this_cpu_ptr(&cio_irb); |
| 542 sch = (struct subchannel *)(unsigned long) tpi_info->intparm; 543 if (!sch) { | 542 if (!tpi_info->intparm) { |
| 544 /* Clear pending interrupt condition. */ 545 inc_irq_stat(IRQIO_CIO); 546 tsch(tpi_info->schid, irb); 547 return IRQ_HANDLED; 548 } | 543 /* Clear pending interrupt condition. */ 544 inc_irq_stat(IRQIO_CIO); 545 tsch(tpi_info->schid, irb); 546 return IRQ_HANDLED; 547 } |
| 548 sch = phys_to_virt(tpi_info->intparm); |
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| 549 spin_lock(sch->lock); 550 /* Store interrupt response block to lowcore. */ 551 if (tsch(tpi_info->schid, irb) == 0) { 552 /* Keep subchannel information word up to date. */ 553 memcpy (&sch->schib.scsw, &irb->scsw, sizeof (irb->scsw)); 554 /* Call interrupt handler if there is one. */ 555 if (sch->driver && sch->driver->irq) 556 sch->driver->irq(sch); --- 104 unchanged lines hidden (view full) --- 661 662 sch = css_alloc_subchannel(schid, &schib); 663 if (IS_ERR(sch)) 664 return sch; 665 666 lockdep_set_class(sch->lock, &console_sch_key); 667 isc_register(CONSOLE_ISC); 668 sch->config.isc = CONSOLE_ISC; | 549 spin_lock(sch->lock); 550 /* Store interrupt response block to lowcore. */ 551 if (tsch(tpi_info->schid, irb) == 0) { 552 /* Keep subchannel information word up to date. */ 553 memcpy (&sch->schib.scsw, &irb->scsw, sizeof (irb->scsw)); 554 /* Call interrupt handler if there is one. */ 555 if (sch->driver && sch->driver->irq) 556 sch->driver->irq(sch); --- 104 unchanged lines hidden (view full) --- 661 662 sch = css_alloc_subchannel(schid, &schib); 663 if (IS_ERR(sch)) 664 return sch; 665 666 lockdep_set_class(sch->lock, &console_sch_key); 667 isc_register(CONSOLE_ISC); 668 sch->config.isc = CONSOLE_ISC; |
| 669 sch->config.intparm = (u32)(addr_t)sch; | 669 sch->config.intparm = (u32)virt_to_phys(sch); |
| 670 ret = cio_commit_config(sch); 671 if (ret) { 672 isc_unregister(CONSOLE_ISC); 673 put_device(&sch->dev); 674 return ERR_PTR(ret); 675 } 676 console_sch = sch; 677 return sch; --- 30 unchanged lines hidden (view full) --- 708 * otherwise. 709 */ 710int cio_tm_start_key(struct subchannel *sch, struct tcw *tcw, u8 lpm, u8 key) 711{ 712 int cc; 713 union orb *orb = &to_io_private(sch)->orb; 714 715 memset(orb, 0, sizeof(union orb)); | 670 ret = cio_commit_config(sch); 671 if (ret) { 672 isc_unregister(CONSOLE_ISC); 673 put_device(&sch->dev); 674 return ERR_PTR(ret); 675 } 676 console_sch = sch; 677 return sch; --- 30 unchanged lines hidden (view full) --- 708 * otherwise. 709 */ 710int cio_tm_start_key(struct subchannel *sch, struct tcw *tcw, u8 lpm, u8 key) 711{ 712 int cc; 713 union orb *orb = &to_io_private(sch)->orb; 714 715 memset(orb, 0, sizeof(union orb)); |
| 716 orb->tm.intparm = (u32) (addr_t) sch; | 716 orb->tm.intparm = (u32)virt_to_phys(sch); |
| 717 orb->tm.key = key >> 4; 718 orb->tm.b = 1; 719 orb->tm.lpm = lpm ? lpm : sch->lpm; | 717 orb->tm.key = key >> 4; 718 orb->tm.b = 1; 719 orb->tm.lpm = lpm ? lpm : sch->lpm; |
| 720 orb->tm.tcw = (u32) (addr_t) tcw; | 720 orb->tm.tcw = (u32)virt_to_phys(tcw); |
| 721 cc = ssch(sch->schid, orb); 722 switch (cc) { 723 case 0: 724 return 0; 725 case 1: 726 case 2: 727 return -EBUSY; 728 default: --- 30 unchanged lines hidden --- | 721 cc = ssch(sch->schid, orb); 722 switch (cc) { 723 case 0: 724 return 0; 725 case 1: 726 case 2: 727 return -EBUSY; 728 default: --- 30 unchanged lines hidden --- |