diff options
Diffstat (limited to 'arch/ia64/sn/io/sn1/huberror.c')
| -rw-r--r-- | arch/ia64/sn/io/sn1/huberror.c | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/arch/ia64/sn/io/sn1/huberror.c b/arch/ia64/sn/io/sn1/huberror.c deleted file mode 100644 index 67780a759e6979..00000000000000 --- a/arch/ia64/sn/io/sn1/huberror.c +++ /dev/null @@ -1,228 +0,0 @@ -/* $Id: huberror.c,v 1.1 2002/02/28 17:31:25 marcelo Exp $ - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 1992 - 1997, 2000-2002 Silicon Graphics, Inc. All rights reserved. - */ - - -#include <linux/types.h> -#include <linux/slab.h> -#include <asm/smp.h> -#include <asm/sn/sgi.h> -#include <asm/sn/io.h> -#include <asm/sn/iograph.h> -#include <asm/sn/invent.h> -#include <asm/sn/hcl.h> -#include <asm/sn/labelcl.h> -#include <asm/sn/sn_private.h> -#include <asm/sn/klconfig.h> -#include <asm/sn/sn_cpuid.h> -#include <asm/sn/pci/pciio.h> -#include <asm/sn/pci/pcibr.h> -#include <asm/sn/xtalk/xtalk.h> -#include <asm/sn/pci/pcibr_private.h> -#include <asm/sn/intr.h> - -extern void hubni_eint_init(cnodeid_t cnode); -extern void hubii_eint_init(cnodeid_t cnode); -extern void hubii_eint_handler (int irq, void *arg, struct pt_regs *ep); -extern void snia_error_intr_handler(int irq, void *devid, struct pt_regs *pt_regs); - -extern int maxcpus; - -#define HUB_ERROR_PERIOD (120 * HZ) /* 2 minutes */ - - -void -hub_error_clear(nasid_t nasid) -{ - int i; - hubreg_t idsr; - int sn; - - for(sn=0; sn<NUM_SUBNODES; sn++) { - REMOTE_HUB_PI_S(nasid, sn, PI_ERR_INT_PEND, -1); - REMOTE_HUB_PI_S(nasid, sn, PI_ERR_STATUS0_A_CLR, -1); - REMOTE_HUB_PI_S(nasid, sn, PI_ERR_STATUS0_B_CLR, -1); - REMOTE_HUB_PI_S(nasid, sn, PI_SPURIOUS_HDR_0, 0); - REMOTE_HUB_PI_S(nasid, sn, PI_SPURIOUS_HDR_1, 0); - } - - REMOTE_HUB_L(nasid, MD_DIR_ERROR_CLR); - REMOTE_HUB_L(nasid, MD_MEM_ERROR_CLR); - REMOTE_HUB_L(nasid, MD_MISC1_ERROR_CLR); - REMOTE_HUB_L(nasid, MD_PROTOCOL_ERR_CLR); - - /* - * Make sure spurious write response errors are cleared - * (values are from hub_set_prb()) - */ - for (i = 0; i <= HUB_WIDGET_ID_MAX - HUB_WIDGET_ID_MIN + 1; i++) { - iprb_t prb; - - prb.iprb_regval = REMOTE_HUB_L(nasid, IIO_IOPRB_0 + (i * sizeof(hubreg_t))); - - /* Clear out some fields */ - prb.iprb_ovflow = 1; - prb.iprb_bnakctr = 0; - prb.iprb_anakctr = 0; - - /* - * PIO reads in fire-and-forget mode on bedrock 1.0 don't - * frob the credit count properly, making the responses appear - * spurious. So don't use fire-and-forget mode. Bug 761802. - */ - prb.iprb_ff = 0; /* disable fire-and-forget mode by default */ - - prb.iprb_xtalkctr = 3; /* approx. PIO credits for the widget */ - - REMOTE_HUB_S(nasid, IIO_IOPRB_0 + (i * sizeof(hubreg_t)), prb.iprb_regval); - } - - REMOTE_HUB_S(nasid, IIO_IO_ERR_CLR, -1); - idsr = REMOTE_HUB_L(nasid, IIO_IIDSR); - REMOTE_HUB_S(nasid, IIO_IIDSR, (idsr & ~(IIO_IIDSR_SENT_MASK))); - - REMOTE_HUB_L(nasid, NI_PORT_ERROR_CLEAR); - /* No need to clear NI_PORT_HEADER regs; they are continually overwritten*/ - - REMOTE_HUB_S(nasid, LB_ERROR_MASK_CLR, -1); - REMOTE_HUB_S(nasid, LB_ERROR_HDR1, 0); - - /* Clear XB error regs, in order */ - for (i = 0; - i <= XB_FIRST_ERROR_CLEAR - XB_POQ0_ERROR_CLEAR; - i += sizeof(hubreg_t)) { - REMOTE_HUB_S(nasid, XB_POQ0_ERROR_CLEAR + i, 0); - } -} - - -/* - * Function : hub_error_init - * Purpose : initialize the error handling requirements for a given hub. - * Parameters : cnode, the compact nodeid. - * Assumptions : Called only once per hub, either by a local cpu. Or by a - * remote cpu, when this hub is headless.(cpuless) - * Returns : None - */ - -void -hub_error_init(cnodeid_t cnode) -{ - nasid_t nasid; - - nasid = cnodeid_to_nasid(cnode); - hub_error_clear(nasid); - - /* - * Now setup the hub ii and ni error interrupt handler. - */ - - hubii_eint_init(cnode); - hubni_eint_init(cnode); - - return; -} - -/* - * Function : hubii_eint_init - * Parameters : cnode - * Purpose : to initialize the hub iio error interrupt. - * Assumptions : Called once per hub, by the cpu which will ultimately - * handle this interrupt. - * Returns : None. - */ - - -void -hubii_eint_init(cnodeid_t cnode) -{ - int bit, rv; - ii_iidsr_u_t hubio_eint; - hubinfo_t hinfo; - cpuid_t intr_cpu; - devfs_handle_t hub_v; - ii_ilcsr_u_t ilcsr; - int bit_pos_to_irq(int bit); - int synergy_intr_connect(int bit, int cpuid); - - - hub_v = (devfs_handle_t)cnodeid_to_vertex(cnode); - ASSERT_ALWAYS(hub_v); - hubinfo_get(hub_v, &hinfo); - - ASSERT(hinfo); - ASSERT(hinfo->h_cnodeid == cnode); - - ilcsr.ii_ilcsr_regval = REMOTE_HUB_L(hinfo->h_nasid, IIO_ILCSR); - - if ((ilcsr.ii_ilcsr_fld_s.i_llp_stat & 0x2) == 0) { - /* - * HUB II link is not up. - * Just disable LLP, and don't connect any interrupts. - */ - ilcsr.ii_ilcsr_fld_s.i_llp_en = 0; - REMOTE_HUB_S(hinfo->h_nasid, IIO_ILCSR, ilcsr.ii_ilcsr_regval); - return; - } - /* Select a possible interrupt target where there is a free interrupt - * bit and also reserve the interrupt bit for this IO error interrupt - */ - intr_cpu = intr_heuristic(hub_v,0,INTRCONNECT_ANYBIT,II_ERRORINT,hub_v, - "HUB IO error interrupt",&bit); - if (intr_cpu == CPU_NONE) { - printk("hubii_eint_init: intr_reserve_level failed, cnode %d", cnode); - return; - } - - rv = intr_connect_level(intr_cpu, bit, 0, NULL); - synergy_intr_connect(bit, intr_cpu); - request_irq(bit_pos_to_irq(bit) + (intr_cpu << 8), hubii_eint_handler, 0, "SN hub error", (void *)hub_v); - ASSERT_ALWAYS(rv >= 0); - hubio_eint.ii_iidsr_regval = 0; - hubio_eint.ii_iidsr_fld_s.i_enable = 1; - hubio_eint.ii_iidsr_fld_s.i_level = bit;/* Take the least significant bits*/ - hubio_eint.ii_iidsr_fld_s.i_node = COMPACT_TO_NASID_NODEID(cnode); - hubio_eint.ii_iidsr_fld_s.i_pi_id = cpuid_to_subnode(intr_cpu); - REMOTE_HUB_S(hinfo->h_nasid, IIO_IIDSR, hubio_eint.ii_iidsr_regval); - -} - -void -hubni_eint_init(cnodeid_t cnode) -{ - int intr_bit; - cpuid_t targ; - - - if ((targ = cnodeid_to_cpuid(cnode)) == CPU_NONE) - return; - - /* The prom chooses which cpu gets these interrupts, but we - * don't know which one it chose. We will register all of the - * cpus to be sure. This only costs us an irqaction per cpu. - */ - for (; targ < CPUS_PER_NODE; targ++) { - if (!cpu_enabled(targ) ) continue; - /* connect the INTEND1 bits. */ - for (intr_bit = XB_ERROR; intr_bit <= MSC_PANIC_INTR; intr_bit++) { - intr_connect_level(targ, intr_bit, II_ERRORINT, NULL); - } - request_irq(SGI_HUB_ERROR_IRQ + (targ << 8), snia_error_intr_handler, 0, "SN hub error", NULL); - /* synergy masks are initialized in the prom to enable all interrupts. */ - /* We'll just leave them that way, here, for these interrupts. */ - } -} - - -/*ARGSUSED*/ -void -hubii_eint_handler (int irq, void *arg, struct pt_regs *ep) -{ - - panic("Hubii interrupt\n"); -} |