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Pull ngam-maule-steiner into release branch

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This commit is contained in:
Tony Luck
2005-08-29 15:48:51 -07:00
parent b946ecbb11 d1e079b3fc
commit bcdd3a9114
27 changed files with 2385 additions and 294 deletions
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arch/ia64/sn/include/tio.h
+5 -1
View File
@@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2000-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (C) 2000-2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_TIO_H
@@ -26,6 +26,10 @@
#define TIO_ITTE_VALID_MASK 0x1
#define TIO_ITTE_VALID_SHIFT 16
#define TIO_ITTE_WIDGET(itte) \
(((itte) >> TIO_ITTE_WIDGET_SHIFT) & TIO_ITTE_WIDGET_MASK)
#define TIO_ITTE_VALID(itte) \
(((itte) >> TIO_ITTE_VALID_SHIFT) & TIO_ITTE_VALID_MASK)
#define TIO_ITTE_PUT(nasid, bigwin, widget, addr, valid) \
REMOTE_HUB_S((nasid), TIO_ITTE(bigwin), \
arch/ia64/sn/include/xtalk/hubdev.h
+8 -3
View File
@@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1992 - 1997, 2000-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (C) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_XTALK_HUBDEV_H
#define _ASM_IA64_SN_XTALK_HUBDEV_H
@@ -16,6 +16,9 @@
#define IIO_ITTE_WIDGET_MASK ((1<<IIO_ITTE_WIDGET_BITS)-1)
#define IIO_ITTE_WIDGET_SHIFT 8
#define IIO_ITTE_WIDGET(itte) \
(((itte) >> IIO_ITTE_WIDGET_SHIFT) & IIO_ITTE_WIDGET_MASK)
/*
* Use the top big window as a surrogate for the first small window
*/
@@ -34,7 +37,8 @@ struct sn_flush_device_list {
unsigned long sfdl_force_int_addr;
unsigned long sfdl_flush_value;
volatile unsigned long *sfdl_flush_addr;
uint64_t sfdl_persistent_busnum;
uint32_t sfdl_persistent_busnum;
uint32_t sfdl_persistent_segment;
struct pcibus_info *sfdl_pcibus_info;
spinlock_t sfdl_flush_lock;
};
@@ -58,7 +62,8 @@ struct hubdev_info {
void *hdi_nodepda;
void *hdi_node_vertex;
void *hdi_xtalk_vertex;
uint32_t max_segment_number;
uint32_t max_pcibus_number;
};
extern void hubdev_init_node(nodepda_t *, cnodeid_t);
arch/ia64/sn/kernel/bte.c
+52 -31
View File
@@ -29,16 +29,30 @@
/* two interfaces on two btes */
#define MAX_INTERFACES_TO_TRY 4
#define MAX_NODES_TO_TRY 2
static struct bteinfo_s *bte_if_on_node(nasid_t nasid, int interface)
{
nodepda_t *tmp_nodepda;
if (nasid_to_cnodeid(nasid) == -1)
return (struct bteinfo_s *)NULL;;
tmp_nodepda = NODEPDA(nasid_to_cnodeid(nasid));
return &tmp_nodepda->bte_if[interface];
}
static inline void bte_start_transfer(struct bteinfo_s *bte, u64 len, u64 mode)
{
if (is_shub2()) {
BTE_CTRL_STORE(bte, (IBLS_BUSY | ((len) | (mode) << 24)));
} else {
BTE_LNSTAT_STORE(bte, len);
BTE_CTRL_STORE(bte, mode);
}
}
/************************************************************************
* Block Transfer Engine copy related functions.
*
@@ -67,13 +81,15 @@ bte_result_t bte_copy(u64 src, u64 dest, u64 len, u64 mode, void *notification)
{
u64 transfer_size;
u64 transfer_stat;
u64 notif_phys_addr;
struct bteinfo_s *bte;
bte_result_t bte_status;
unsigned long irq_flags;
unsigned long itc_end = 0;
struct bteinfo_s *btes_to_try[MAX_INTERFACES_TO_TRY];
int bte_if_index;
int bte_pri, bte_sec;
int nasid_to_try[MAX_NODES_TO_TRY];
int my_nasid = get_nasid();
int bte_if_index, nasid_index;
int bte_first, btes_per_node = BTES_PER_NODE;
BTE_PRINTK(("bte_copy(0x%lx, 0x%lx, 0x%lx, 0x%lx, 0x%p)\n",
src, dest, len, mode, notification));
@@ -86,36 +102,26 @@ bte_result_t bte_copy(u64 src, u64 dest, u64 len, u64 mode, void *notification)
(src & L1_CACHE_MASK) || (dest & L1_CACHE_MASK));
BUG_ON(!(len < ((BTE_LEN_MASK + 1) << L1_CACHE_SHIFT)));
/* CPU 0 (per node) tries bte0 first, CPU 1 try bte1 first */
if (cpuid_to_subnode(smp_processor_id()) == 0) {
bte_pri = 0;
bte_sec = 1;
} else {
bte_pri = 1;
bte_sec = 0;
}
/*
* Start with interface corresponding to cpu number
*/
bte_first = raw_smp_processor_id() % btes_per_node;
if (mode & BTE_USE_DEST) {
/* try remote then local */
btes_to_try[0] = bte_if_on_node(NASID_GET(dest), bte_pri);
btes_to_try[1] = bte_if_on_node(NASID_GET(dest), bte_sec);
nasid_to_try[0] = NASID_GET(dest);
if (mode & BTE_USE_ANY) {
btes_to_try[2] = bte_if_on_node(get_nasid(), bte_pri);
btes_to_try[3] = bte_if_on_node(get_nasid(), bte_sec);
nasid_to_try[1] = my_nasid;
} else {
btes_to_try[2] = NULL;
btes_to_try[3] = NULL;
nasid_to_try[1] = (int)NULL;
}
} else {
/* try local then remote */
btes_to_try[0] = bte_if_on_node(get_nasid(), bte_pri);
btes_to_try[1] = bte_if_on_node(get_nasid(), bte_sec);
nasid_to_try[0] = my_nasid;
if (mode & BTE_USE_ANY) {
btes_to_try[2] = bte_if_on_node(NASID_GET(dest), bte_pri);
btes_to_try[3] = bte_if_on_node(NASID_GET(dest), bte_sec);
nasid_to_try[1] = NASID_GET(dest);
} else {
btes_to_try[2] = NULL;
btes_to_try[3] = NULL;
nasid_to_try[1] = (int)NULL;
}
}
@@ -123,11 +129,12 @@ retry_bteop:
do {
local_irq_save(irq_flags);
bte_if_index = 0;
bte_if_index = bte_first;
nasid_index = 0;
/* Attempt to lock one of the BTE interfaces. */
while (bte_if_index < MAX_INTERFACES_TO_TRY) {
bte = btes_to_try[bte_if_index++];
while (nasid_index < MAX_NODES_TO_TRY) {
bte = bte_if_on_node(nasid_to_try[nasid_index],bte_if_index);
if (bte == NULL) {
continue;
@@ -143,6 +150,15 @@ retry_bteop:
break;
}
}
bte_if_index = (bte_if_index + 1) % btes_per_node; /* Next interface */
if (bte_if_index == bte_first) {
/*
* We've tried all interfaces on this node
*/
nasid_index++;
}
bte = NULL;
}
@@ -169,7 +185,13 @@ retry_bteop:
/* Initialize the notification to a known value. */
*bte->most_rcnt_na = BTE_WORD_BUSY;
notif_phys_addr = TO_PHYS(ia64_tpa((unsigned long)bte->most_rcnt_na));
if (is_shub2()) {
src = SH2_TIO_PHYS_TO_DMA(src);
dest = SH2_TIO_PHYS_TO_DMA(dest);
notif_phys_addr = SH2_TIO_PHYS_TO_DMA(notif_phys_addr);
}
/* Set the source and destination registers */
BTE_PRINTKV(("IBSA = 0x%lx)\n", (TO_PHYS(src))));
BTE_SRC_STORE(bte, TO_PHYS(src));
@@ -177,14 +199,12 @@ retry_bteop:
BTE_DEST_STORE(bte, TO_PHYS(dest));
/* Set the notification register */
BTE_PRINTKV(("IBNA = 0x%lx)\n",
TO_PHYS(ia64_tpa((unsigned long)bte->most_rcnt_na))));
BTE_NOTIF_STORE(bte,
TO_PHYS(ia64_tpa((unsigned long)bte->most_rcnt_na)));
BTE_PRINTKV(("IBNA = 0x%lx)\n", notif_phys_addr));
BTE_NOTIF_STORE(bte, notif_phys_addr);
/* Initiate the transfer */
BTE_PRINTK(("IBCT = 0x%lx)\n", BTE_VALID_MODE(mode)));
BTE_START_TRANSFER(bte, transfer_size, BTE_VALID_MODE(mode));
bte_start_transfer(bte, transfer_size, BTE_VALID_MODE(mode));
itc_end = ia64_get_itc() + (40000000 * local_cpu_data->cyc_per_usec);
@@ -195,6 +215,7 @@ retry_bteop:
}
while ((transfer_stat = *bte->most_rcnt_na) == BTE_WORD_BUSY) {
cpu_relax();
if (ia64_get_itc() > itc_end) {
BTE_PRINTK(("BTE timeout nasid 0x%x bte%d IBLS = 0x%lx na 0x%lx\n",
NASID_GET(bte->bte_base_addr), bte->bte_num,
arch/ia64/sn/kernel/huberror.c
+1 -1
View File
@@ -76,7 +76,7 @@ void hubiio_crb_free(struct hubdev_info *hubdev_info, int crbnum)
*/
REMOTE_HUB_S(hubdev_info->hdi_nasid, IIO_ICDR, (IIO_ICDR_PND | crbnum));
while (REMOTE_HUB_L(hubdev_info->hdi_nasid, IIO_ICDR) & IIO_ICDR_PND)
udelay(1);
cpu_relax();
}
arch/ia64/sn/kernel/io_init.c
+29 -6
View File
@@ -18,6 +18,7 @@
#include <asm/sn/simulator.h>
#include <asm/sn/sn_sal.h>
#include <asm/sn/tioca_provider.h>
#include <asm/sn/tioce_provider.h>
#include "xtalk/hubdev.h"
#include "xtalk/xwidgetdev.h"
@@ -44,6 +45,9 @@ int sn_ioif_inited = 0; /* SN I/O infrastructure initialized? */
struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES]; /* indexed by asic type */
static int max_segment_number = 0; /* Default highest segment number */
static int max_pcibus_number = 255; /* Default highest pci bus number */
/*
* Hooks and struct for unsupported pci providers
*/
@@ -157,13 +161,28 @@ static void sn_fixup_ionodes(void)
uint64_t nasid;
int i, widget;
/*
* Get SGI Specific HUB chipset information.
* Inform Prom that this kernel can support domain bus numbering.
*/
for (i = 0; i < numionodes; i++) {
hubdev = (struct hubdev_info *)(NODEPDA(i)->pdinfo);
nasid = cnodeid_to_nasid(i);
hubdev->max_segment_number = 0xffffffff;
hubdev->max_pcibus_number = 0xff;
status = sal_get_hubdev_info(nasid, (uint64_t) __pa(hubdev));
if (status)
continue;
/* Save the largest Domain and pcibus numbers found. */
if (hubdev->max_segment_number) {
/*
* Dealing with a Prom that supports segments.
*/
max_segment_number = hubdev->max_segment_number;
max_pcibus_number = hubdev->max_pcibus_number;
}
/* Attach the error interrupt handlers */
if (nasid & 1)
ice_error_init(hubdev);
@@ -230,7 +249,7 @@ void sn_pci_unfixup_slot(struct pci_dev *dev)
void sn_pci_fixup_slot(struct pci_dev *dev)
{
int idx;
int segment = 0;
int segment = pci_domain_nr(dev->bus);
int status = 0;
struct pcibus_bussoft *bs;
struct pci_bus *host_pci_bus;
@@ -283,9 +302,9 @@ void sn_pci_fixup_slot(struct pci_dev *dev)
* PCI host_pci_dev struct and set up host bus linkages
*/
bus_no = SN_PCIDEV_INFO(dev)->pdi_slot_host_handle >> 32;
bus_no = (SN_PCIDEV_INFO(dev)->pdi_slot_host_handle >> 32) & 0xff;
devfn = SN_PCIDEV_INFO(dev)->pdi_slot_host_handle & 0xffffffff;
host_pci_bus = pci_find_bus(pci_domain_nr(dev->bus), bus_no);
host_pci_bus = pci_find_bus(segment, bus_no);
host_pci_dev = pci_get_slot(host_pci_bus, devfn);
SN_PCIDEV_INFO(dev)->host_pci_dev = host_pci_dev;
@@ -333,6 +352,7 @@ void sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
prom_bussoft_ptr = __va(prom_bussoft_ptr);
controller = kcalloc(1,sizeof(struct pci_controller), GFP_KERNEL);
controller->segment = segment;
if (!controller)
BUG();
@@ -390,7 +410,7 @@ void sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
if (controller->node >= num_online_nodes()) {
struct pcibus_bussoft *b = SN_PCIBUS_BUSSOFT(bus);
printk(KERN_WARNING "Device ASIC=%u XID=%u PBUSNUM=%lu"
printk(KERN_WARNING "Device ASIC=%u XID=%u PBUSNUM=%u"
"L_IO=%lx L_MEM=%lx BASE=%lx\n",
b->bs_asic_type, b->bs_xid, b->bs_persist_busnum,
b->bs_legacy_io, b->bs_legacy_mem, b->bs_base);
@@ -445,6 +465,7 @@ sn_sysdata_free_start:
static int __init sn_pci_init(void)
{
int i = 0;
int j = 0;
struct pci_dev *pci_dev = NULL;
extern void sn_init_cpei_timer(void);
#ifdef CONFIG_PROC_FS
@@ -464,6 +485,7 @@ static int __init sn_pci_init(void)
pcibr_init_provider();
tioca_init_provider();
tioce_init_provider();
/*
* This is needed to avoid bounce limit checks in the blk layer
@@ -479,8 +501,9 @@ static int __init sn_pci_init(void)
#endif
/* busses are not known yet ... */
for (i = 0; i < PCI_BUSES_TO_SCAN; i++)
sn_pci_controller_fixup(0, i, NULL);
for (i = 0; i <= max_segment_number; i++)
for (j = 0; j <= max_pcibus_number; j++)
sn_pci_controller_fixup(i, j, NULL);
/*
* Generic Linux PCI Layer has created the pci_bus and pci_dev
arch/ia64/sn/kernel/irq.c
+39 -36
View File
@@ -5,7 +5,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
* Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*/
#include <linux/irq.h>
@@ -76,16 +76,14 @@ static void sn_enable_irq(unsigned int irq)
static void sn_ack_irq(unsigned int irq)
{
uint64_t event_occurred, mask = 0;
int nasid;
u64 event_occurred, mask = 0;
irq = irq & 0xff;
nasid = get_nasid();
event_occurred =
HUB_L((uint64_t *) GLOBAL_MMR_ADDR(nasid, SH_EVENT_OCCURRED));
HUB_L((u64*)LOCAL_MMR_ADDR(SH_EVENT_OCCURRED));
mask = event_occurred & SH_ALL_INT_MASK;
HUB_S((uint64_t *) GLOBAL_MMR_ADDR(nasid, SH_EVENT_OCCURRED_ALIAS),
mask);
HUB_S((u64*)LOCAL_MMR_ADDR(SH_EVENT_OCCURRED_ALIAS),
mask);
__set_bit(irq, (volatile void *)pda->sn_in_service_ivecs);
move_irq(irq);
@@ -93,15 +91,12 @@ static void sn_ack_irq(unsigned int irq)
static void sn_end_irq(unsigned int irq)
{
int nasid;
int ivec;
uint64_t event_occurred;
u64 event_occurred;
ivec = irq & 0xff;
if (ivec == SGI_UART_VECTOR) {
nasid = get_nasid();
event_occurred = HUB_L((uint64_t *) GLOBAL_MMR_ADDR
(nasid, SH_EVENT_OCCURRED));
event_occurred = HUB_L((u64*)LOCAL_MMR_ADDR (SH_EVENT_OCCURRED));
/* If the UART bit is set here, we may have received an
* interrupt from the UART that the driver missed. To
* make sure, we IPI ourselves to force us to look again.
@@ -132,6 +127,7 @@ static void sn_set_affinity_irq(unsigned int irq, cpumask_t mask)
int local_widget, status;
nasid_t local_nasid;
struct sn_irq_info *new_irq_info;
struct sn_pcibus_provider *pci_provider;
new_irq_info = kmalloc(sizeof(struct sn_irq_info), GFP_ATOMIC);
if (new_irq_info == NULL)
@@ -171,8 +167,9 @@ static void sn_set_affinity_irq(unsigned int irq, cpumask_t mask)
new_irq_info->irq_cpuid = cpuid;
register_intr_pda(new_irq_info);
if (IS_PCI_BRIDGE_ASIC(new_irq_info->irq_bridge_type))
pcibr_change_devices_irq(new_irq_info);
pci_provider = sn_pci_provider[new_irq_info->irq_bridge_type];
if (pci_provider && pci_provider->target_interrupt)
(pci_provider->target_interrupt)(new_irq_info);
spin_lock(&sn_irq_info_lock);
list_replace_rcu(&sn_irq_info->list, &new_irq_info->list);
@@ -317,6 +314,16 @@ void sn_irq_unfixup(struct pci_dev *pci_dev)
pci_dev_put(pci_dev);
}
static inline void
sn_call_force_intr_provider(struct sn_irq_info *sn_irq_info)
{
struct sn_pcibus_provider *pci_provider;
pci_provider = sn_pci_provider[sn_irq_info->irq_bridge_type];
if (pci_provider && pci_provider->force_interrupt)
(*pci_provider->force_interrupt)(sn_irq_info);
}
static void force_interrupt(int irq)
{
struct sn_irq_info *sn_irq_info;
@@ -325,11 +332,9 @@ static void force_interrupt(int irq)
return;
rcu_read_lock();
list_for_each_entry_rcu(sn_irq_info, sn_irq_lh[irq], list) {
if (IS_PCI_BRIDGE_ASIC(sn_irq_info->irq_bridge_type) &&
(sn_irq_info->irq_bridge != NULL))
pcibr_force_interrupt(sn_irq_info);
}
list_for_each_entry_rcu(sn_irq_info, sn_irq_lh[irq], list)
sn_call_force_intr_provider(sn_irq_info);
rcu_read_unlock();
}
@@ -351,6 +356,14 @@ static void sn_check_intr(int irq, struct sn_irq_info *sn_irq_info)
struct pcidev_info *pcidev_info;
struct pcibus_info *pcibus_info;
/*
* Bridge types attached to TIO (anything but PIC) do not need this WAR
* since they do not target Shub II interrupt registers. If that
* ever changes, this check needs to accomodate.
*/
if (sn_irq_info->irq_bridge_type != PCIIO_ASIC_TYPE_PIC)
return;
pcidev_info = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
if (!pcidev_info)
return;
@@ -377,16 +390,12 @@ static void sn_check_intr(int irq, struct sn_irq_info *sn_irq_info)
break;
}
if (!test_bit(irr_bit, &irr_reg)) {
if (!test_bit(irq, pda->sn_soft_irr)) {
if (!test_bit(irq, pda->sn_in_service_ivecs)) {
regval &= 0xff;
if (sn_irq_info->irq_int_bit & regval &
sn_irq_info->irq_last_intr) {
regval &=
~(sn_irq_info->
irq_int_bit & regval);
pcibr_force_interrupt(sn_irq_info);
}
if (!test_bit(irq, pda->sn_in_service_ivecs)) {
regval &= 0xff;
if (sn_irq_info->irq_int_bit & regval &
sn_irq_info->irq_last_intr) {
regval &= ~(sn_irq_info->irq_int_bit & regval);
sn_call_force_intr_provider(sn_irq_info);
}
}
}
@@ -404,13 +413,7 @@ void sn_lb_int_war_check(void)
rcu_read_lock();
for (i = pda->sn_first_irq; i <= pda->sn_last_irq; i++) {
list_for_each_entry_rcu(sn_irq_info, sn_irq_lh[i], list) {
/*
* Only call for PCI bridges that are fully
* initialized.
*/
if (IS_PCI_BRIDGE_ASIC(sn_irq_info->irq_bridge_type) &&
(sn_irq_info->irq_bridge != NULL))
sn_check_intr(i, sn_irq_info);
sn_check_intr(i, sn_irq_info);
}
}
rcu_read_unlock();
arch/ia64/sn/kernel/setup.c
+3 -4
View File
@@ -80,8 +80,6 @@ EXPORT_PER_CPU_SYMBOL(__sn_cnodeid_to_nasid);
DEFINE_PER_CPU(struct nodepda_s *, __sn_nodepda);
EXPORT_PER_CPU_SYMBOL(__sn_nodepda);
partid_t sn_partid = -1;
EXPORT_SYMBOL(sn_partid);
char sn_system_serial_number_string[128];
EXPORT_SYMBOL(sn_system_serial_number_string);
u64 sn_partition_serial_number;
@@ -403,6 +401,7 @@ static void __init sn_init_pdas(char **cmdline_p)
memset(nodepdaindr[cnode], 0, sizeof(nodepda_t));
memset(nodepdaindr[cnode]->phys_cpuid, -1,
sizeof(nodepdaindr[cnode]->phys_cpuid));
spin_lock_init(&nodepdaindr[cnode]->ptc_lock);
}
/*
@@ -532,8 +531,8 @@ void __init sn_cpu_init(void)
*/
{
u64 pio1[] = {SH1_PIO_WRITE_STATUS_0, 0, SH1_PIO_WRITE_STATUS_1, 0};
u64 pio2[] = {SH2_PIO_WRITE_STATUS_0, SH2_PIO_WRITE_STATUS_1,
SH2_PIO_WRITE_STATUS_2, SH2_PIO_WRITE_STATUS_3};
u64 pio2[] = {SH2_PIO_WRITE_STATUS_0, SH2_PIO_WRITE_STATUS_2,
SH2_PIO_WRITE_STATUS_1, SH2_PIO_WRITE_STATUS_3};
u64 *pio;
pio = is_shub1() ? pio1 : pio2;
pda->pio_write_status_addr = (volatile unsigned long *) LOCAL_MMR_ADDR(pio[slice]);
arch/ia64/sn/kernel/sn2/ptc_deadlock.S
+9 -4
View File
@@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2000-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (C) 2000-2005 Silicon Graphics, Inc. All rights reserved.
*/
#include <asm/types.h>
@@ -11,7 +11,7 @@
#define DEADLOCKBIT SH_PIO_WRITE_STATUS_WRITE_DEADLOCK_SHFT
#define WRITECOUNTMASK SH_PIO_WRITE_STATUS_PENDING_WRITE_COUNT_MASK
#define ALIAS_OFFSET (SH1_PIO_WRITE_STATUS_0_ALIAS-SH1_PIO_WRITE_STATUS_0)
#define ALIAS_OFFSET 8
.global sn2_ptc_deadlock_recovery_core
@@ -36,13 +36,15 @@ sn2_ptc_deadlock_recovery_core:
extr.u piowcphy=piowc,0,61;; // Convert piowc to uncached physical address
dep piowcphy=-1,piowcphy,63,1
movl mask=WRITECOUNTMASK
mov r8=r0
1:
add scr2=ALIAS_OFFSET,piowc // Address of WRITE_STATUS alias register
mov scr1=7;; // Clear DEADLOCK, WRITE_ERROR, MULTI_WRITE_ERROR
st8.rel [scr2]=scr1;;
;;
ld8.acq scr1=[scr2];;
5: ld8.acq scr1=[piowc];; // Wait for PIOs to complete.
hint @pause
and scr2=scr1,mask;; // mask of writecount bits
cmp.ne p6,p0=zeroval,scr2
(p6) br.cond.sptk 5b
@@ -57,6 +59,7 @@ sn2_ptc_deadlock_recovery_core:
st8.rel [ptc0]=data0 // Write PTC0 & wait for completion.
5: ld8.acq scr1=[piowcphy];; // Wait for PIOs to complete.
hint @pause
and scr2=scr1,mask;; // mask of writecount bits
cmp.ne p6,p0=zeroval,scr2
(p6) br.cond.sptk 5b;;
@@ -67,6 +70,7 @@ sn2_ptc_deadlock_recovery_core:
(p7) st8.rel [ptc1]=data1;; // Now write PTC1.
5: ld8.acq scr1=[piowcphy];; // Wait for PIOs to complete.
hint @pause
and scr2=scr1,mask;; // mask of writecount bits
cmp.ne p6,p0=zeroval,scr2
(p6) br.cond.sptk 5b
@@ -77,6 +81,7 @@ sn2_ptc_deadlock_recovery_core:
srlz.i;;
////////////// END PHYSICAL MODE ////////////////////
(p8) add r8=1,r8
(p8) br.cond.spnt 1b;; // Repeat if DEADLOCK occurred.
br.ret.sptk rp
arch/ia64/sn/kernel/sn2/sn2_smp.c
+233 -23
View File
@@ -5,7 +5,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2000-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (C) 2000-2005 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/init.h>
@@ -20,6 +20,8 @@
#include <linux/module.h>
#include <linux/bitops.h>
#include <linux/nodemask.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <asm/processor.h>
#include <asm/irq.h>
@@ -39,12 +41,120 @@
#include <asm/sn/nodepda.h>
#include <asm/sn/rw_mmr.h>
void sn2_ptc_deadlock_recovery(volatile unsigned long *, unsigned long data0,
volatile unsigned long *, unsigned long data1);
DEFINE_PER_CPU(struct ptc_stats, ptcstats);
DECLARE_PER_CPU(struct ptc_stats, ptcstats);
static __cacheline_aligned DEFINE_SPINLOCK(sn2_global_ptc_lock);
static unsigned long sn2_ptc_deadlock_count;
void sn2_ptc_deadlock_recovery(short *, short, int, volatile unsigned long *, unsigned long data0,
volatile unsigned long *, unsigned long data1);
#ifdef DEBUG_PTC
/*
* ptctest:
*
* xyz - 3 digit hex number:
* x - Force PTC purges to use shub:
* 0 - no force
* 1 - force
* y - interupt enable
* 0 - disable interrupts
* 1 - leave interuupts enabled
* z - type of lock:
* 0 - global lock
* 1 - node local lock
* 2 - no lock
*
* Note: on shub1, only ptctest == 0 is supported. Don't try other values!
*/
static unsigned int sn2_ptctest = 0;
static int __init ptc_test(char *str)
{
get_option(&str, &sn2_ptctest);
return 1;
}
__setup("ptctest=", ptc_test);
static inline int ptc_lock(unsigned long *flagp)
{
unsigned long opt = sn2_ptctest & 255;
switch (opt) {
case 0x00:
spin_lock_irqsave(&sn2_global_ptc_lock, *flagp);
break;
case 0x01:
spin_lock_irqsave(&sn_nodepda->ptc_lock, *flagp);
break;
case 0x02:
local_irq_save(*flagp);
break;
case 0x10:
spin_lock(&sn2_global_ptc_lock);
break;
case 0x11:
spin_lock(&sn_nodepda->ptc_lock);
break;
case 0x12:
break;
default:
BUG();
}
return opt;
}
static inline void ptc_unlock(unsigned long flags, int opt)
{
switch (opt) {
case 0x00:
spin_unlock_irqrestore(&sn2_global_ptc_lock, flags);
break;
case 0x01:
spin_unlock_irqrestore(&sn_nodepda->ptc_lock, flags);
break;
case 0x02:
local_irq_restore(flags);
break;
case 0x10:
spin_unlock(&sn2_global_ptc_lock);
break;
case 0x11:
spin_unlock(&sn_nodepda->ptc_lock);
break;
case 0x12:
break;
default:
BUG();
}
}
#else
#define sn2_ptctest 0
static inline int ptc_lock(unsigned long *flagp)
{
spin_lock_irqsave(&sn2_global_ptc_lock, *flagp);
return 0;
}
static inline void ptc_unlock(unsigned long flags, int opt)
{
spin_unlock_irqrestore(&sn2_global_ptc_lock, flags);
}
#endif
struct ptc_stats {
unsigned long ptc_l;
unsigned long change_rid;
unsigned long shub_ptc_flushes;
unsigned long nodes_flushed;
unsigned long deadlocks;
unsigned long lock_itc_clocks;
unsigned long shub_itc_clocks;
unsigned long shub_itc_clocks_max;
};
static inline unsigned long wait_piowc(void)
{
@@ -89,9 +199,9 @@ void
sn2_global_tlb_purge(unsigned long start, unsigned long end,
unsigned long nbits)
{
int i, shub1, cnode, mynasid, cpu, lcpu = 0, nasid, flushed = 0;
int i, opt, shub1, cnode, mynasid, cpu, lcpu = 0, nasid, flushed = 0;
volatile unsigned long *ptc0, *ptc1;
unsigned long flags = 0, data0 = 0, data1 = 0;
unsigned long itc, itc2, flags, data0 = 0, data1 = 0;
struct mm_struct *mm = current->active_mm;
short nasids[MAX_NUMNODES], nix;
nodemask_t nodes_flushed;
@@ -114,16 +224,19 @@ sn2_global_tlb_purge(unsigned long start, unsigned long end,
start += (1UL << nbits);
} while (start < end);
ia64_srlz_i();
__get_cpu_var(ptcstats).ptc_l++;
preempt_enable();
return;
}
if (atomic_read(&mm->mm_users) == 1) {
flush_tlb_mm(mm);
__get_cpu_var(ptcstats).change_rid++;
preempt_enable();
return;
}
itc = ia64_get_itc();
nix = 0;
for_each_node_mask(cnode, nodes_flushed)
nasids[nix++] = cnodeid_to_nasid(cnode);
@@ -148,7 +261,12 @@ sn2_global_tlb_purge(unsigned long start, unsigned long end,
mynasid = get_nasid();
spin_lock_irqsave(&sn2_global_ptc_lock, flags);
itc = ia64_get_itc();
opt = ptc_lock(&flags);
itc2 = ia64_get_itc();
__get_cpu_var(ptcstats).lock_itc_clocks += itc2 - itc;
__get_cpu_var(ptcstats).shub_ptc_flushes++;
__get_cpu_var(ptcstats).nodes_flushed += nix;
do {
if (shub1)
@@ -157,7 +275,7 @@ sn2_global_tlb_purge(unsigned long start, unsigned long end,
data0 = (data0 & ~SH2_PTC_ADDR_MASK) | (start & SH2_PTC_ADDR_MASK);
for (i = 0; i < nix; i++) {
nasid = nasids[i];
if (unlikely(nasid == mynasid)) {
if ((!(sn2_ptctest & 3)) && unlikely(nasid == mynasid)) {
ia64_ptcga(start, nbits << 2);
ia64_srlz_i();
} else {
@@ -169,18 +287,22 @@ sn2_global_tlb_purge(unsigned long start, unsigned long end,
flushed = 1;
}
}
if (flushed
&& (wait_piowc() &
SH_PIO_WRITE_STATUS_WRITE_DEADLOCK_MASK)) {
sn2_ptc_deadlock_recovery(ptc0, data0, ptc1, data1);
(SH_PIO_WRITE_STATUS_WRITE_DEADLOCK_MASK))) {
sn2_ptc_deadlock_recovery(nasids, nix, mynasid, ptc0, data0, ptc1, data1);
}
start += (1UL << nbits);
} while (start < end);
spin_unlock_irqrestore(&sn2_global_ptc_lock, flags);
itc2 = ia64_get_itc() - itc2;
__get_cpu_var(ptcstats).shub_itc_clocks += itc2;
if (itc2 > __get_cpu_var(ptcstats).shub_itc_clocks_max)
__get_cpu_var(ptcstats).shub_itc_clocks_max = itc2;
ptc_unlock(flags, opt);
preempt_enable();
}
@@ -192,31 +314,29 @@ sn2_global_tlb_purge(unsigned long start, unsigned long end,
* TLB flush transaction. The recovery sequence is somewhat tricky & is
* coded in assembly language.
*/
void sn2_ptc_deadlock_recovery(volatile unsigned long *ptc0, unsigned long data0,
void sn2_ptc_deadlock_recovery(short *nasids, short nix, int mynasid, volatile unsigned long *ptc0, unsigned long data0,
volatile unsigned long *ptc1, unsigned long data1)
{
extern void sn2_ptc_deadlock_recovery_core(volatile unsigned long *, unsigned long,
volatile unsigned long *, unsigned long, volatile unsigned long *, unsigned long);
int cnode, mycnode, nasid;
volatile unsigned long *piows;
volatile unsigned long zeroval;
short nasid, i;
unsigned long *piows, zeroval;
sn2_ptc_deadlock_count++;
__get_cpu_var(ptcstats).deadlocks++;
piows = pda->pio_write_status_addr;
piows = (unsigned long *) pda->pio_write_status_addr;
zeroval = pda->pio_write_status_val;
mycnode = numa_node_id();
for_each_online_node(cnode) {
if (is_headless_node(cnode) || cnode == mycnode)
for (i=0; i < nix; i++) {
nasid = nasids[i];
if (!(sn2_ptctest & 3) && nasid == mynasid)
continue;
nasid = cnodeid_to_nasid(cnode);
ptc0 = CHANGE_NASID(nasid, ptc0);
if (ptc1)
ptc1 = CHANGE_NASID(nasid, ptc1);
sn2_ptc_deadlock_recovery_core(ptc0, data0, ptc1, data1, piows, zeroval);
}
}
/**
@@ -293,3 +413,93 @@ void sn2_send_IPI(int cpuid, int vector, int delivery_mode, int redirect)
sn_send_IPI_phys(nasid, physid, vector, delivery_mode);
}
#ifdef CONFIG_PROC_FS
#define PTC_BASENAME "sgi_sn/ptc_statistics"
static void *sn2_ptc_seq_start(struct seq_file *file, loff_t * offset)
{
if (*offset < NR_CPUS)
return offset;
return NULL;
}
static void *sn2_ptc_seq_next(struct seq_file *file, void *data, loff_t * offset)
{
(*offset)++;
if (*offset < NR_CPUS)
return offset;
return NULL;
}
static void sn2_ptc_seq_stop(struct seq_file *file, void *data)
{
}
static int sn2_ptc_seq_show(struct seq_file *file, void *data)
{
struct ptc_stats *stat;
int cpu;
cpu = *(loff_t *) data;
if (!cpu) {
seq_printf(file, "# ptc_l change_rid shub_ptc_flushes shub_nodes_flushed deadlocks lock_nsec shub_nsec shub_nsec_max\n");
seq_printf(file, "# ptctest %d\n", sn2_ptctest);
}
if (cpu < NR_CPUS && cpu_online(cpu)) {
stat = &per_cpu(ptcstats, cpu);
seq_printf(file, "cpu %d %ld %ld %ld %ld %ld %ld %ld %ld\n", cpu, stat->ptc_l,
stat->change_rid, stat->shub_ptc_flushes, stat->nodes_flushed,
stat->deadlocks,
1000 * stat->lock_itc_clocks / per_cpu(cpu_info, cpu).cyc_per_usec,
1000 * stat->shub_itc_clocks / per_cpu(cpu_info, cpu).cyc_per_usec,
1000 * stat->shub_itc_clocks_max / per_cpu(cpu_info, cpu).cyc_per_usec);
}
return 0;
}
static struct seq_operations sn2_ptc_seq_ops = {
.start = sn2_ptc_seq_start,
.next = sn2_ptc_seq_next,
.stop = sn2_ptc_seq_stop,
.show = sn2_ptc_seq_show
};
int sn2_ptc_proc_open(struct inode *inode, struct file *file)
{
return seq_open(file, &sn2_ptc_seq_ops);
}
static struct file_operations proc_sn2_ptc_operations = {
.open = sn2_ptc_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
static struct proc_dir_entry *proc_sn2_ptc;
static int __init sn2_ptc_init(void)
{
if (!(proc_sn2_ptc = create_proc_entry(PTC_BASENAME, 0444, NULL))) {
printk(KERN_ERR "unable to create %s proc entry", PTC_BASENAME);
return -EINVAL;
}
proc_sn2_ptc->proc_fops = &proc_sn2_ptc_operations;
spin_lock_init(&sn2_global_ptc_lock);
return 0;
}
static void __exit sn2_ptc_exit(void)
{
remove_proc_entry(PTC_BASENAME, NULL);
}
module_init(sn2_ptc_init);
module_exit(sn2_ptc_exit);
#endif /* CONFIG_PROC_FS */
arch/ia64/sn/kernel/sn2/sn_hwperf.c
+260 -52
View File
@@ -58,7 +58,7 @@ static int sn_hwperf_enum_objects(int *nobj, struct sn_hwperf_object_info **ret)
struct sn_hwperf_object_info *objbuf = NULL;
if ((e = sn_hwperf_init()) < 0) {
printk("sn_hwperf_init failed: err %d\n", e);
printk(KERN_ERR "sn_hwperf_init failed: err %d\n", e);
goto out;
}
@@ -110,7 +110,7 @@ static int sn_hwperf_geoid_to_cnode(char *location)
if (sn_hwperf_location_to_bpos(location, &rack, &bay, &slot, &slab))
return -1;
for (cnode = 0; cnode < numionodes; cnode++) {
for_each_node(cnode) {
geoid = cnodeid_get_geoid(cnode);
module_id = geo_module(geoid);
this_rack = MODULE_GET_RACK(module_id);
@@ -123,11 +123,13 @@ static int sn_hwperf_geoid_to_cnode(char *location)
}
}
return cnode < numionodes ? cnode : -1;
return node_possible(cnode) ? cnode : -1;
}
static int sn_hwperf_obj_to_cnode(struct sn_hwperf_object_info * obj)
{
if (!SN_HWPERF_IS_NODE(obj) && !SN_HWPERF_IS_IONODE(obj))
BUG();
if (!obj->sn_hwp_this_part)
return -1;
return sn_hwperf_geoid_to_cnode(obj->location);
@@ -173,31 +175,199 @@ static const char *sn_hwperf_get_slabname(struct sn_hwperf_object_info *obj,
return slabname;
}
static void print_pci_topology(struct seq_file *s,
struct sn_hwperf_object_info *obj, int *ordinal,
u64 rack, u64 bay, u64 slot, u64 slab)
static void print_pci_topology(struct seq_file *s)
{
char *p1;
char *p2;
char *pg;
char *p;
size_t sz;
int e;
if (!(pg = (char *)get_zeroed_page(GFP_KERNEL)))
return; /* ignore */
if (ia64_sn_ioif_get_pci_topology(rack, bay, slot, slab,
__pa(pg), PAGE_SIZE) == SN_HWPERF_OP_OK) {
for (p1=pg; *p1 && p1 < pg + PAGE_SIZE;) {
if (!(p2 = strchr(p1, '\n')))
break;
*p2 = '\0';
seq_printf(s, "pcibus %d %s-%s\n",
*ordinal, obj->location, p1);
(*ordinal)++;
p1 = p2 + 1;
for (sz = PAGE_SIZE; sz < 16 * PAGE_SIZE; sz += PAGE_SIZE) {
if (!(p = (char *)kmalloc(sz, GFP_KERNEL)))
break;
e = ia64_sn_ioif_get_pci_topology(__pa(p), sz);
if (e == SALRET_OK)
seq_puts(s, p);
kfree(p);
if (e == SALRET_OK || e == SALRET_NOT_IMPLEMENTED)
break;
}
}
static inline int sn_hwperf_has_cpus(cnodeid_t node)
{
return node_online(node) && nr_cpus_node(node);
}
static inline int sn_hwperf_has_mem(cnodeid_t node)
{
return node_online(node) && NODE_DATA(node)->node_present_pages;
}
static struct sn_hwperf_object_info *
sn_hwperf_findobj_id(struct sn_hwperf_object_info *objbuf,
int nobj, int id)
{
int i;
struct sn_hwperf_object_info *p = objbuf;
for (i=0; i < nobj; i++, p++) {
if (p->id == id)
return p;
}
return NULL;
}
static int sn_hwperf_get_nearest_node_objdata(struct sn_hwperf_object_info *objbuf,
int nobj, cnodeid_t node, cnodeid_t *near_mem_node, cnodeid_t *near_cpu_node)
{
int e;
struct sn_hwperf_object_info *nodeobj = NULL;
struct sn_hwperf_object_info *op;
struct sn_hwperf_object_info *dest;
struct sn_hwperf_object_info *router;
struct sn_hwperf_port_info ptdata[16];
int sz, i, j;
cnodeid_t c;
int found_mem = 0;
int found_cpu = 0;
if (!node_possible(node))
return -EINVAL;
if (sn_hwperf_has_cpus(node)) {
if (near_cpu_node)
*near_cpu_node = node;
found_cpu++;
}
if (sn_hwperf_has_mem(node)) {
if (near_mem_node)
*near_mem_node = node;
found_mem++;
}
if (found_cpu && found_mem)
return 0; /* trivially successful */
/* find the argument node object */
for (i=0, op=objbuf; i < nobj; i++, op++) {
if (!SN_HWPERF_IS_NODE(op) && !SN_HWPERF_IS_IONODE(op))
continue;
if (node == sn_hwperf_obj_to_cnode(op)) {
nodeobj = op;
break;
}
}
free_page((unsigned long)pg);
if (!nodeobj) {
e = -ENOENT;
goto err;
}
/* get it's interconnect topology */
sz = op->ports * sizeof(struct sn_hwperf_port_info);
if (sz > sizeof(ptdata))
BUG();
e = ia64_sn_hwperf_op(sn_hwperf_master_nasid,
SN_HWPERF_ENUM_PORTS, nodeobj->id, sz,
(u64)&ptdata, 0, 0, NULL);
if (e != SN_HWPERF_OP_OK) {
e = -EINVAL;
goto err;
}
/* find nearest node with cpus and nearest memory */
for (router=NULL, j=0; j < op->ports; j++) {
dest = sn_hwperf_findobj_id(objbuf, nobj, ptdata[j].conn_id);
if (!dest || SN_HWPERF_FOREIGN(dest) ||
!SN_HWPERF_IS_NODE(dest) || SN_HWPERF_IS_IONODE(dest)) {
continue;
}
c = sn_hwperf_obj_to_cnode(dest);
if (!found_cpu && sn_hwperf_has_cpus(c)) {
if (near_cpu_node)
*near_cpu_node = c;
found_cpu++;
}
if (!found_mem && sn_hwperf_has_mem(c)) {
if (near_mem_node)
*near_mem_node = c;
found_mem++;
}
if (SN_HWPERF_IS_ROUTER(dest))
router = dest;
}
if (router && (!found_cpu || !found_mem)) {
/* search for a node connected to the same router */
sz = router->ports * sizeof(struct sn_hwperf_port_info);
if (sz > sizeof(ptdata))
BUG();
e = ia64_sn_hwperf_op(sn_hwperf_master_nasid,
SN_HWPERF_ENUM_PORTS, router->id, sz,
(u64)&ptdata, 0, 0, NULL);
if (e != SN_HWPERF_OP_OK) {
e = -EINVAL;
goto err;
}
for (j=0; j < router->ports; j++) {
dest = sn_hwperf_findobj_id(objbuf, nobj,
ptdata[j].conn_id);
if (!dest || dest->id == node ||
SN_HWPERF_FOREIGN(dest) ||
!SN_HWPERF_IS_NODE(dest) ||
SN_HWPERF_IS_IONODE(dest)) {
continue;
}
c = sn_hwperf_obj_to_cnode(dest);
if (!found_cpu && sn_hwperf_has_cpus(c)) {
if (near_cpu_node)
*near_cpu_node = c;
found_cpu++;
}
if (!found_mem && sn_hwperf_has_mem(c)) {
if (near_mem_node)
*near_mem_node = c;
found_mem++;
}
if (found_cpu && found_mem)
break;
}
}
if (!found_cpu || !found_mem) {
/* resort to _any_ node with CPUs and memory */
for (i=0, op=objbuf; i < nobj; i++, op++) {
if (SN_HWPERF_FOREIGN(op) ||
SN_HWPERF_IS_IONODE(op) ||
!SN_HWPERF_IS_NODE(op)) {
continue;
}
c = sn_hwperf_obj_to_cnode(op);
if (!found_cpu && sn_hwperf_has_cpus(c)) {
if (near_cpu_node)
*near_cpu_node = c;
found_cpu++;
}
if (!found_mem && sn_hwperf_has_mem(c)) {
if (near_mem_node)
*near_mem_node = c;
found_mem++;
}
if (found_cpu && found_mem)
break;
}
}
if (!found_cpu || !found_mem)
e = -ENODATA;
err:
return e;
}
static int sn_topology_show(struct seq_file *s, void *d)
{
int sz;
@@ -214,7 +384,6 @@ static int sn_topology_show(struct seq_file *s, void *d)
struct sn_hwperf_object_info *p;
struct sn_hwperf_object_info *obj = d; /* this object */
struct sn_hwperf_object_info *objs = s->private; /* all objects */
int rack, bay, slot, slab;
u8 shubtype;
u8 system_size;
u8 sharing_size;
@@ -224,7 +393,6 @@ static int sn_topology_show(struct seq_file *s, void *d)
u8 region_size;
u16 nasid_mask;
int nasid_msb;
int pci_bus_ordinal = 0;
if (obj == objs) {
seq_printf(s, "# sn_topology version 2\n");
@@ -252,6 +420,8 @@ static int sn_topology_show(struct seq_file *s, void *d)
shubtype ? "shub2" : "shub1",
(u64)nasid_mask << nasid_shift, nasid_msb, nasid_shift,
system_size, sharing_size, coher, region_size);
print_pci_topology(s);
}
if (SN_HWPERF_FOREIGN(obj)) {
@@ -271,11 +441,24 @@ static int sn_topology_show(struct seq_file *s, void *d)
if (!SN_HWPERF_IS_NODE(obj) && !SN_HWPERF_IS_IONODE(obj))
seq_putc(s, '\n');
else {
cnodeid_t near_mem = -1;
cnodeid_t near_cpu = -1;
seq_printf(s, ", nasid 0x%x", cnodeid_to_nasid(ordinal));
for (i=0; i < numionodes; i++) {
seq_printf(s, i ? ":%d" : ", dist %d",
node_distance(ordinal, i));
if (sn_hwperf_get_nearest_node_objdata(objs, sn_hwperf_obj_cnt,
ordinal, &near_mem, &near_cpu) == 0) {
seq_printf(s, ", near_mem_nodeid %d, near_cpu_nodeid %d",
near_mem, near_cpu);
}
if (!SN_HWPERF_IS_IONODE(obj)) {
for_each_online_node(i) {
seq_printf(s, i ? ":%d" : ", dist %d",
node_distance(ordinal, i));
}
}
seq_putc(s, '\n');
/*
@@ -299,17 +482,6 @@ static int sn_topology_show(struct seq_file *s, void *d)
seq_putc(s, '\n');
}
}
/*
* PCI busses attached to this node, if any
*/
if (sn_hwperf_location_to_bpos(obj->location,
&rack, &bay, &slot, &slab)) {
/* export pci bus info */
print_pci_topology(s, obj, &pci_bus_ordinal,
rack, bay, slot, slab);
}
}
if (obj->ports) {
@@ -571,6 +743,8 @@ sn_hwperf_ioctl(struct inode *in, struct file *fp, u32 op, u64 arg)
if ((r = sn_hwperf_enum_objects(&nobj, &objs)) == 0) {
memset(p, 0, a.sz);
for (i = 0; i < nobj; i++) {
if (!SN_HWPERF_IS_NODE(objs + i))
continue;
node = sn_hwperf_obj_to_cnode(objs + i);
for_each_online_cpu(j) {
if (node != cpu_to_node(j))
@@ -597,7 +771,7 @@ sn_hwperf_ioctl(struct inode *in, struct file *fp, u32 op, u64 arg)
case SN_HWPERF_GET_NODE_NASID:
if (a.sz != sizeof(u64) ||
(node = a.arg) < 0 || node >= numionodes) {
(node = a.arg) < 0 || !node_possible(node)) {
r = -EINVAL;
goto error;
}
@@ -626,6 +800,14 @@ sn_hwperf_ioctl(struct inode *in, struct file *fp, u32 op, u64 arg)
vfree(objs);
goto error;
}
if (!SN_HWPERF_IS_NODE(objs + i) &&
!SN_HWPERF_IS_IONODE(objs + i)) {
r = -ENOENT;
vfree(objs);
goto error;
}
*(u64 *)p = (u64)sn_hwperf_obj_to_cnode(objs + i);
vfree(objs);
}
@@ -691,6 +873,7 @@ static int sn_hwperf_init(void)
/* single threaded, once-only initialization */
down(&sn_hwperf_init_mutex);
if (sn_hwperf_salheap) {
up(&sn_hwperf_init_mutex);
return e;
@@ -741,19 +924,6 @@ out:
sn_hwperf_salheap = NULL;
sn_hwperf_obj_cnt = 0;
}
if (!e) {
/*
* Register a dynamic misc device for ioctl. Platforms
* supporting hotplug will create /dev/sn_hwperf, else
* user can to look up the minor number in /proc/misc.
*/
if ((e = misc_register(&sn_hwperf_dev)) != 0) {
printk(KERN_ERR "sn_hwperf_init: misc register "
"for \"sn_hwperf\" failed, err %d\n", e);
}
}
up(&sn_hwperf_init_mutex);
return e;
}
@@ -781,3 +951,41 @@ int sn_topology_release(struct inode *inode, struct file *file)
vfree(seq->private);
return seq_release(inode, file);
}
int sn_hwperf_get_nearest_node(cnodeid_t node,
cnodeid_t *near_mem_node, cnodeid_t *near_cpu_node)
{
int e;
int nobj;
struct sn_hwperf_object_info *objbuf;
if ((e = sn_hwperf_enum_objects(&nobj, &objbuf)) == 0) {
e = sn_hwperf_get_nearest_node_objdata(objbuf, nobj,
node, near_mem_node, near_cpu_node);
vfree(objbuf);
}
return e;
}
static int __devinit sn_hwperf_misc_register_init(void)
{
int e;
sn_hwperf_init();
/*
* Register a dynamic misc device for hwperf ioctls. Platforms
* supporting hotplug will create /dev/sn_hwperf, else user
* can to look up the minor number in /proc/misc.
*/
if ((e = misc_register(&sn_hwperf_dev)) != 0) {
printk(KERN_ERR "sn_hwperf_misc_register_init: failed to "
"register misc device for \"%s\"\n", sn_hwperf_dev.name);
}
return e;
}
device_initcall(sn_hwperf_misc_register_init); /* after misc_init() */
EXPORT_SYMBOL(sn_hwperf_get_nearest_node);
arch/ia64/sn/kernel/sn2/sn_proc_fs.c
+2 -2
View File
@@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2000-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (C) 2000-2005 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/config.h>
#include <asm/uaccess.h>
@@ -15,7 +15,7 @@
static int partition_id_show(struct seq_file *s, void *p)
{
seq_printf(s, "%d\n", sn_local_partid());
seq_printf(s, "%d\n", sn_partition_id);
return 0;
}
arch/ia64/sn/kernel/sn2/timer_interrupt.c
+12 -10
View File
@@ -1,7 +1,7 @@
/*
*
*
* Copyright (c) 2003 Silicon Graphics, Inc. All Rights Reserved.
* Copyright (c) 2005 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
@@ -50,14 +50,16 @@ void sn_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
LED_CPU_HEARTBEAT, LED_CPU_HEARTBEAT);
}
if (enable_shub_wars_1_1()) {
/* Bugfix code for SHUB 1.1 */
if (pda->pio_shub_war_cam_addr)
*pda->pio_shub_war_cam_addr = 0x8000000000000010UL;
if (is_shub1()) {
if (enable_shub_wars_1_1()) {
/* Bugfix code for SHUB 1.1 */
if (pda->pio_shub_war_cam_addr)
*pda->pio_shub_war_cam_addr = 0x8000000000000010UL;
}
if (pda->sn_lb_int_war_ticks == 0)
sn_lb_int_war_check();
pda->sn_lb_int_war_ticks++;
if (pda->sn_lb_int_war_ticks >= SN_LB_INT_WAR_INTERVAL)
pda->sn_lb_int_war_ticks = 0;
}
if (pda->sn_lb_int_war_ticks == 0)
sn_lb_int_war_check();
pda->sn_lb_int_war_ticks++;
if (pda->sn_lb_int_war_ticks >= SN_LB_INT_WAR_INTERVAL)
pda->sn_lb_int_war_ticks = 0;
}
arch/ia64/sn/pci/Makefile
+1 -1
View File
@@ -7,4 +7,4 @@
#
# Makefile for the sn pci general routines.
obj-y := pci_dma.o tioca_provider.o pcibr/
obj-y := pci_dma.o tioca_provider.o tioce_provider.o pcibr/
arch/ia64/sn/pci/pcibr/pcibr_dma.c
+36 -24
View File
@@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2001-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (C) 2001-2005 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/types.h>
@@ -215,8 +215,8 @@ void sn_dma_flush(uint64_t addr)
int is_tio;
int wid_num;
int i, j;
int bwin;
uint64_t flags;
uint64_t itte;
struct hubdev_info *hubinfo;
volatile struct sn_flush_device_list *p;
struct sn_flush_nasid_entry *flush_nasid_list;
@@ -233,31 +233,36 @@ void sn_dma_flush(uint64_t addr)
if (!hubinfo) {
BUG();
}
is_tio = (nasid & 1);
if (is_tio) {
wid_num = TIO_SWIN_WIDGETNUM(addr);
bwin = TIO_BWIN_WINDOWNUM(addr);
} else {
wid_num = SWIN_WIDGETNUM(addr);
bwin = BWIN_WINDOWNUM(addr);
}
flush_nasid_list = &hubinfo->hdi_flush_nasid_list;
if (flush_nasid_list->widget_p == NULL)
return;
if (bwin > 0) {
uint64_t itte = flush_nasid_list->iio_itte[bwin];
if (is_tio) {
wid_num = (itte >> TIO_ITTE_WIDGET_SHIFT) &
TIO_ITTE_WIDGET_MASK;
} else {
wid_num = (itte >> IIO_ITTE_WIDGET_SHIFT) &
IIO_ITTE_WIDGET_MASK;
}
is_tio = (nasid & 1);
if (is_tio) {
int itte_index;
if (TIO_HWIN(addr))
itte_index = 0;
else if (TIO_BWIN_WINDOWNUM(addr))
itte_index = TIO_BWIN_WINDOWNUM(addr);
else
itte_index = -1;
if (itte_index >= 0) {
itte = flush_nasid_list->iio_itte[itte_index];
if (! TIO_ITTE_VALID(itte))
return;
wid_num = TIO_ITTE_WIDGET(itte);
} else
wid_num = TIO_SWIN_WIDGETNUM(addr);
} else {
if (BWIN_WINDOWNUM(addr)) {
itte = flush_nasid_list->iio_itte[BWIN_WINDOWNUM(addr)];
wid_num = IIO_ITTE_WIDGET(itte);
} else
wid_num = SWIN_WIDGETNUM(addr);
}
if (flush_nasid_list->widget_p == NULL)
return;
if (flush_nasid_list->widget_p[wid_num] == NULL)
return;
p = &flush_nasid_list->widget_p[wid_num][0];
@@ -283,10 +288,16 @@ void sn_dma_flush(uint64_t addr)
/*
* For TIOCP use the Device(x) Write Request Buffer Flush Bridge
* register since it ensures the data has entered the coherence
* domain, unlike PIC
* domain, unlike PIC.
*/
if (is_tio) {
uint32_t tio_id = REMOTE_HUB_L(nasid, TIO_NODE_ID);
/*
* Note: devices behind TIOCE should never be matched in the
* above code, and so the following code is PIC/CP centric.
* If CE ever needs the sn_dma_flush mechanism, we will have
* to account for that here and in tioce_bus_fixup().
*/
uint32_t tio_id = HUB_L(TIO_IOSPACE_ADDR(nasid, TIO_NODE_ID));
uint32_t revnum = XWIDGET_PART_REV_NUM(tio_id);
/* TIOCP BRINGUP WAR (PV907516): Don't write buffer flush reg */
@@ -306,7 +317,8 @@ void sn_dma_flush(uint64_t addr)
*(volatile uint32_t *)(p->sfdl_force_int_addr) = 1;
/* wait for the interrupt to come back. */
while (*(p->sfdl_flush_addr) != 0x10f) ;
while (*(p->sfdl_flush_addr) != 0x10f)
cpu_relax();
/* okay, everything is synched up. */
spin_unlock_irqrestore((spinlock_t *)&p->sfdl_flush_lock, flags);
arch/ia64/sn/pci/pcibr/pcibr_provider.c
+28 -12
View File
@@ -15,6 +15,7 @@
#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/pcidev.h>
#include <asm/sn/sn_sal.h>
#include <asm/sn/sn2/sn_hwperf.h>
#include "xtalk/xwidgetdev.h"
#include "xtalk/hubdev.h"
@@ -60,7 +61,7 @@ static int sal_pcibr_error_interrupt(struct pcibus_info *soft)
ret_stuff.status = 0;
ret_stuff.v0 = 0;
segment = 0;
segment = soft->pbi_buscommon.bs_persist_segment;
busnum = soft->pbi_buscommon.bs_persist_busnum;
SAL_CALL_NOLOCK(ret_stuff,
(u64) SN_SAL_IOIF_ERROR_INTERRUPT,
@@ -88,6 +89,7 @@ void *
pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *controller)
{
int nasid, cnode, j;
cnodeid_t near_cnode;
struct hubdev_info *hubdev_info;
struct pcibus_info *soft;
struct sn_flush_device_list *sn_flush_device_list;
@@ -115,7 +117,7 @@ pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
/*
* register the bridge's error interrupt handler
*/
if (request_irq(SGI_PCIBR_ERROR, (void *)pcibr_error_intr_handler,
if (request_irq(SGI_PCIASIC_ERROR, (void *)pcibr_error_intr_handler,
SA_SHIRQ, "PCIBR error", (void *)(soft))) {
printk(KERN_WARNING
"pcibr cannot allocate interrupt for error handler\n");
@@ -142,9 +144,12 @@ pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
j++, sn_flush_device_list++) {
if (sn_flush_device_list->sfdl_slot == -1)
continue;
if (sn_flush_device_list->
sfdl_persistent_busnum ==
soft->pbi_buscommon.bs_persist_busnum)
if ((sn_flush_device_list->
sfdl_persistent_segment ==
soft->pbi_buscommon.bs_persist_segment) &&
(sn_flush_device_list->
sfdl_persistent_busnum ==
soft->pbi_buscommon.bs_persist_busnum))
sn_flush_device_list->sfdl_pcibus_info =
soft;
}
@@ -158,12 +163,18 @@ pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
memset(soft->pbi_int_ate_resource.ate, 0,
(soft->pbi_int_ate_size * sizeof(uint64_t)));
if (prom_bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCP)
/*
* TIO PCI Bridge with no closest node information.
* FIXME: Find another way to determine the closest node
*/
controller->node = -1;
if (prom_bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCP) {
/* TIO PCI Bridge: find nearest node with CPUs */
int e = sn_hwperf_get_nearest_node(cnode, NULL, &near_cnode);
if (e < 0) {
near_cnode = (cnodeid_t)-1; /* use any node */
printk(KERN_WARNING "pcibr_bus_fixup: failed to find "
"near node with CPUs to TIO node %d, err=%d\n",
cnode, e);
}
controller->node = near_cnode;
}
else
controller->node = cnode;
return soft;
@@ -175,6 +186,9 @@ void pcibr_force_interrupt(struct sn_irq_info *sn_irq_info)
struct pcibus_info *pcibus_info;
int bit = sn_irq_info->irq_int_bit;
if (! sn_irq_info->irq_bridge)
return;
pcidev_info = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
if (pcidev_info) {
pcibus_info =
@@ -184,7 +198,7 @@ void pcibr_force_interrupt(struct sn_irq_info *sn_irq_info)
}
}
void pcibr_change_devices_irq(struct sn_irq_info *sn_irq_info)
void pcibr_target_interrupt(struct sn_irq_info *sn_irq_info)
{
struct pcidev_info *pcidev_info;
struct pcibus_info *pcibus_info;
@@ -219,6 +233,8 @@ struct sn_pcibus_provider pcibr_provider = {
.dma_map_consistent = pcibr_dma_map_consistent,
.dma_unmap = pcibr_dma_unmap,
.bus_fixup = pcibr_bus_fixup,
.force_interrupt = pcibr_force_interrupt,
.target_interrupt = pcibr_target_interrupt
};
int
arch/ia64/sn/pci/tioca_provider.c
+5 -2
View File
@@ -559,7 +559,7 @@ tioca_error_intr_handler(int irq, void *arg, struct pt_regs *pt)
ret_stuff.status = 0;
ret_stuff.v0 = 0;
segment = 0;
segment = soft->ca_common.bs_persist_segment;
busnum = soft->ca_common.bs_persist_busnum;
SAL_CALL_NOLOCK(ret_stuff,
@@ -622,7 +622,8 @@ tioca_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
nasid_to_cnodeid(tioca_common->ca_closest_nasid);
tioca_common->ca_kernel_private = (uint64_t) tioca_kern;
bus = pci_find_bus(0, tioca_common->ca_common.bs_persist_busnum);
bus = pci_find_bus(tioca_common->ca_common.bs_persist_segment,
tioca_common->ca_common.bs_persist_busnum);
BUG_ON(!bus);
tioca_kern->ca_devices = &bus->devices;
@@ -656,6 +657,8 @@ static struct sn_pcibus_provider tioca_pci_interfaces = {
.dma_map_consistent = tioca_dma_map,
.dma_unmap = tioca_dma_unmap,
.bus_fixup = tioca_bus_fixup,
.force_interrupt = NULL,
.target_interrupt = NULL
};
/**
arch/ia64/sn/pci/tioce_provider.c
+771
View File
File diff suppressed because it is too large Load Diff
include/asm-ia64/sn/addrs.h
+59 -20
View File
@@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 1992-1999,2001-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (c) 1992-1999,2001-2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_ADDRS_H
@@ -126,6 +126,7 @@
#define GLOBAL_MMR_PHYS_ADDR(n,a) (GLOBAL_PHYS_MMR_SPACE | REMOTE_ADDR(n,a))
#define GLOBAL_CAC_ADDR(n,a) (CAC_BASE | REMOTE_ADDR(n,a))
#define CHANGE_NASID(n,x) ((void *)(((u64)(x) & ~NASID_MASK) | NASID_SPACE(n)))
#define IS_TIO_NASID(n) ((n) & 1)
/* non-II mmr's start at top of big window space (4G) */
@@ -155,10 +156,28 @@
* the chiplet id is zero. If we implement TIO-TIO dma, we might need
* to insert a chiplet id into this macro. However, it is our belief
* right now that this chiplet id will be ICE, which is also zero.
* Nasid starts on bit 40.
*/
#define PHYS_TO_TIODMA(x) ( (((u64)(NASID_GET(x))) << 40) | NODE_OFFSET(x))
#define PHYS_TO_DMA(x) ( (((u64)(x) & NASID_MASK) >> 2) | NODE_OFFSET(x))
#define SH1_TIO_PHYS_TO_DMA(x) \
((((u64)(NASID_GET(x))) << 40) | NODE_OFFSET(x))
#define SH2_NETWORK_BANK_OFFSET(x) \
((u64)(x) & ((1UL << (sn_hub_info->nasid_shift - 4)) -1))
#define SH2_NETWORK_BANK_SELECT(x) \
((((u64)(x) & (0x3UL << (sn_hub_info->nasid_shift - 4))) \
>> (sn_hub_info->nasid_shift - 4)) << 36)
#define SH2_NETWORK_ADDRESS(x) \
(SH2_NETWORK_BANK_OFFSET(x) | SH2_NETWORK_BANK_SELECT(x))
#define SH2_TIO_PHYS_TO_DMA(x) \
(((u64)(NASID_GET(x)) << 40) | SH2_NETWORK_ADDRESS(x))
#define PHYS_TO_TIODMA(x) \
(is_shub1() ? SH1_TIO_PHYS_TO_DMA(x) : SH2_TIO_PHYS_TO_DMA(x))
#define PHYS_TO_DMA(x) \
((((u64)(x) & NASID_MASK) >> 2) | NODE_OFFSET(x))
/*
@@ -187,11 +206,13 @@
#define RAW_NODE_SWIN_BASE(n, w) (NODE_IO_BASE(n) + ((u64) (w) << SWIN_SIZE_BITS))
#define BWIN_WIDGET_MASK 0x7
#define BWIN_WINDOWNUM(x) (((x) >> BWIN_SIZE_BITS) & BWIN_WIDGET_MASK)
#define SH1_IS_BIG_WINDOW_ADDR(x) ((x) & BWIN_TOP)
#define TIO_BWIN_WINDOW_SELECT_MASK 0x7
#define TIO_BWIN_WINDOWNUM(x) (((x) >> TIO_BWIN_SIZE_BITS) & TIO_BWIN_WINDOW_SELECT_MASK)
#define TIO_HWIN_SHIFT_BITS 33
#define TIO_HWIN(x) (NODE_OFFSET(x) >> TIO_HWIN_SHIFT_BITS)
/*
* The following definitions pertain to the IO special address
@@ -216,10 +237,6 @@
#define TIO_SWIN_WIDGETNUM(x) (((x) >> TIO_SWIN_SIZE_BITS) & TIO_SWIN_WIDGET_MASK)
#define TIO_IOSPACE_ADDR(n,x) \
/* Move in the Chiplet ID for TIO Local Block MMR */ \
(REMOTE_ADDR(n,x) | 1UL << (NASID_SHIFT - 2))
/*
* The following macros produce the correct base virtual address for
* the hub registers. The REMOTE_HUB_* macro produce
@@ -234,18 +251,40 @@
* Otherwise, the recommended approach is to use *_HUB_L() and *_HUB_S().
* They're always safe.
*/
/* Shub1 TIO & MMR addressing macros */
#define SH1_TIO_IOSPACE_ADDR(n,x) \
GLOBAL_MMR_ADDR(n,x)
#define SH1_REMOTE_BWIN_MMR(n,x) \
GLOBAL_MMR_ADDR(n,x)
#define SH1_REMOTE_SWIN_MMR(n,x) \
(NODE_SWIN_BASE(n,1) + 0x800000UL + (x))
#define SH1_REMOTE_MMR(n,x) \
(SH1_IS_BIG_WINDOW_ADDR(x) ? SH1_REMOTE_BWIN_MMR(n,x) : \
SH1_REMOTE_SWIN_MMR(n,x))
/* Shub1 TIO & MMR addressing macros */
#define SH2_TIO_IOSPACE_ADDR(n,x) \
((UNCACHED | REMOTE_ADDR(n,x) | 1UL << (NASID_SHIFT - 2)))
#define SH2_REMOTE_MMR(n,x) \
GLOBAL_MMR_ADDR(n,x)
/* TIO & MMR addressing macros that work on both shub1 & shub2 */
#define TIO_IOSPACE_ADDR(n,x) \
((u64 *)(is_shub1() ? SH1_TIO_IOSPACE_ADDR(n,x) : \
SH2_TIO_IOSPACE_ADDR(n,x)))
#define SH_REMOTE_MMR(n,x) \
(is_shub1() ? SH1_REMOTE_MMR(n,x) : SH2_REMOTE_MMR(n,x))
#define REMOTE_HUB_ADDR(n,x) \
((n & 1) ? \
/* TIO: */ \
(is_shub2() ? \
/* TIO on Shub2 */ \
(volatile u64 *)(TIO_IOSPACE_ADDR(n,x)) \
: /* TIO on shub1 */ \
(volatile u64 *)(GLOBAL_MMR_ADDR(n,x))) \
\
: /* SHUB1 and SHUB2 MMRs: */ \
(((x) & BWIN_TOP) ? ((volatile u64 *)(GLOBAL_MMR_ADDR(n,x))) \
: ((volatile u64 *)(NODE_SWIN_BASE(n,1) + 0x800000 + (x)))))
(IS_TIO_NASID(n) ? ((volatile u64*)TIO_IOSPACE_ADDR(n,x)) : \
((volatile u64*)SH_REMOTE_MMR(n,x)))
#define HUB_L(x) (*((volatile typeof(*x) *)x))
#define HUB_S(x,d) (*((volatile typeof(*x) *)x) = (d))
include/asm-ia64/sn/geo.h
+1 -2
View File
@@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1992 - 1997, 2000-2004 Silicon Graphics, Inc. All rights reserved.
* Copyright (C) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_GEO_H
@@ -108,7 +108,6 @@ typedef union geoid_u {
#define INVALID_SLAB (slabid_t)-1
#define INVALID_SLOT (slotid_t)-1
#define INVALID_MODULE ((moduleid_t)-1)
#define INVALID_PARTID ((partid_t)-1)
static inline slabid_t geo_slab(geoid_t g)
{
include/asm-ia64/sn/intr.h
+1 -2
View File
@@ -12,13 +12,12 @@
#include <linux/rcupdate.h>
#define SGI_UART_VECTOR (0xe9)
#define SGI_PCIBR_ERROR (0x33)
/* Reserved IRQs : Note, not to exceed IA64_SN2_FIRST_DEVICE_VECTOR */
#define SGI_XPC_ACTIVATE (0x30)
#define SGI_II_ERROR (0x31)
#define SGI_XBOW_ERROR (0x32)
#define SGI_PCIBR_ERROR (0x33)
#define SGI_PCIASIC_ERROR (0x33)
#define SGI_ACPI_SCI_INT (0x34)
#define SGI_TIOCA_ERROR (0x35)
#define SGI_TIO_ERROR (0x36)

Some files were not shown because too many files have changed in this diff Show More