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-rw-r--r--arch/powerpc/platforms/pseries/Makefile2
-rw-r--r--arch/powerpc/platforms/pseries/eeh.c19
-rw-r--r--arch/powerpc/platforms/pseries/eeh_cache.c5
-rw-r--r--arch/powerpc/platforms/pseries/eeh_driver.c6
-rw-r--r--arch/powerpc/platforms/pseries/eeh_sysfs.c87
-rw-r--r--arch/powerpc/platforms/pseries/lpar.c17
-rw-r--r--arch/powerpc/platforms/pseries/pci_dlpar.c9
-rw-r--r--arch/powerpc/platforms/pseries/plpar_wrappers.h15
-rw-r--r--arch/powerpc/platforms/pseries/pseries.h2
-rw-r--r--arch/powerpc/platforms/pseries/reconfig.c2
-rw-r--r--arch/powerpc/platforms/pseries/setup.c2
-rw-r--r--arch/powerpc/platforms/pseries/xics.c53
12 files changed, 177 insertions, 42 deletions
diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile
index ae1fc92dc1c9..992ba6753cf2 100644
--- a/arch/powerpc/platforms/pseries/Makefile
+++ b/arch/powerpc/platforms/pseries/Makefile
@@ -8,7 +8,7 @@ obj-y := lpar.o hvCall.o nvram.o reconfig.o \
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_XICS) += xics.o
obj-$(CONFIG_SCANLOG) += scanlog.o
-obj-$(CONFIG_EEH) += eeh.o eeh_cache.o eeh_driver.o eeh_event.o
+obj-$(CONFIG_EEH) += eeh.o eeh_cache.o eeh_driver.o eeh_event.o eeh_sysfs.o
obj-$(CONFIG_KEXEC) += kexec.o
obj-$(CONFIG_PCI) += pci.o pci_dlpar.o
obj-$(CONFIG_PCI_MSI) += msi.o
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 5f3e6d8659fe..b8770395013d 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -1,6 +1,8 @@
/*
* eeh.c
- * Copyright (C) 2001 Dave Engebretsen & Todd Inglett IBM Corporation
+ * Copyright IBM Corporation 2001, 2005, 2006
+ * Copyright Dave Engebretsen & Todd Inglett 2001
+ * Copyright Linas Vepstas 2005, 2006
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -15,6 +17,8 @@
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Please address comments and feedback to Linas Vepstas <linas@austin.ibm.com>
*/
#include <linux/delay.h>
@@ -117,7 +121,6 @@ static unsigned long no_cfg_addr;
static unsigned long ignored_check;
static unsigned long total_mmio_ffs;
static unsigned long false_positives;
-static unsigned long ignored_failures;
static unsigned long slot_resets;
#define IS_BRIDGE(class_code) (((class_code)<<16) == PCI_BASE_CLASS_BRIDGE)
@@ -505,6 +508,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
printk(KERN_WARNING "EEH: read_slot_reset_state() failed; rc=%d dn=%s\n",
ret, dn->full_name);
false_positives++;
+ pdn->eeh_false_positives ++;
rc = 0;
goto dn_unlock;
}
@@ -513,6 +517,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
* they are empty when they don't have children. */
if ((rets[0] == 5) && (dn->child == NULL)) {
false_positives++;
+ pdn->eeh_false_positives ++;
rc = 0;
goto dn_unlock;
}
@@ -522,6 +527,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
printk(KERN_WARNING "EEH: event on unsupported device, rc=%d dn=%s\n",
ret, dn->full_name);
false_positives++;
+ pdn->eeh_false_positives ++;
rc = 0;
goto dn_unlock;
}
@@ -529,6 +535,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
/* If not the kind of error we know about, punt. */
if (rets[0] != 1 && rets[0] != 2 && rets[0] != 4 && rets[0] != 5) {
false_positives++;
+ pdn->eeh_false_positives ++;
rc = 0;
goto dn_unlock;
}
@@ -921,6 +928,7 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
pdn->eeh_mode = 0;
pdn->eeh_check_count = 0;
pdn->eeh_freeze_count = 0;
+ pdn->eeh_false_positives = 0;
if (status && strcmp(status, "ok") != 0)
return NULL; /* ignore devices with bad status */
@@ -1139,7 +1147,8 @@ static void eeh_add_device_late(struct pci_dev *dev)
pdn = PCI_DN(dn);
pdn->pcidev = dev;
- pci_addr_cache_insert_device (dev);
+ pci_addr_cache_insert_device(dev);
+ eeh_sysfs_add_device(dev);
}
void eeh_add_device_tree_late(struct pci_bus *bus)
@@ -1178,6 +1187,7 @@ static void eeh_remove_device(struct pci_dev *dev)
printk(KERN_DEBUG "EEH: remove device %s\n", pci_name(dev));
#endif
pci_addr_cache_remove_device(dev);
+ eeh_sysfs_remove_device(dev);
dn = pci_device_to_OF_node(dev);
if (PCI_DN(dn)->pcidev) {
@@ -1214,11 +1224,10 @@ static int proc_eeh_show(struct seq_file *m, void *v)
"check not wanted=%ld\n"
"eeh_total_mmio_ffs=%ld\n"
"eeh_false_positives=%ld\n"
- "eeh_ignored_failures=%ld\n"
"eeh_slot_resets=%ld\n",
no_device, no_dn, no_cfg_addr,
ignored_check, total_mmio_ffs,
- false_positives, ignored_failures,
+ false_positives,
slot_resets);
}
diff --git a/arch/powerpc/platforms/pseries/eeh_cache.c b/arch/powerpc/platforms/pseries/eeh_cache.c
index f2bae04424f8..e49c815eae23 100644
--- a/arch/powerpc/platforms/pseries/eeh_cache.c
+++ b/arch/powerpc/platforms/pseries/eeh_cache.c
@@ -2,7 +2,8 @@
* eeh_cache.c
* PCI address cache; allows the lookup of PCI devices based on I/O address
*
- * Copyright (C) 2004 Linas Vepstas <linas@austin.ibm.com> IBM Corporation
+ * Copyright IBM Corporation 2004
+ * Copyright Linas Vepstas <linas@austin.ibm.com> 2004
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -295,6 +296,8 @@ void __init pci_addr_cache_build(void)
continue;
pci_dev_get (dev); /* matching put is in eeh_remove_device() */
PCI_DN(dn)->pcidev = dev;
+
+ eeh_sysfs_add_device(dev);
}
#ifdef DEBUG
diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c
index 161a5844ab6c..15e015ef6865 100644
--- a/arch/powerpc/platforms/pseries/eeh_driver.c
+++ b/arch/powerpc/platforms/pseries/eeh_driver.c
@@ -1,6 +1,7 @@
/*
* PCI Error Recovery Driver for RPA-compliant PPC64 platform.
- * Copyright (C) 2004, 2005 Linas Vepstas <linas@linas.org>
+ * Copyright IBM Corp. 2004 2005
+ * Copyright Linas Vepstas <linas@linas.org> 2004, 2005
*
* All rights reserved.
*
@@ -19,8 +20,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
- * Send feedback to <linas@us.ibm.com>
- *
+ * Send comments and feedback to Linas Vepstas <linas@austin.ibm.com>
*/
#include <linux/delay.h>
#include <linux/interrupt.h>
diff --git a/arch/powerpc/platforms/pseries/eeh_sysfs.c b/arch/powerpc/platforms/pseries/eeh_sysfs.c
new file mode 100644
index 000000000000..15e13b568904
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/eeh_sysfs.c
@@ -0,0 +1,87 @@
+/*
+ * Sysfs entries for PCI Error Recovery for PAPR-compliant platform.
+ * Copyright IBM Corporation 2007
+ * Copyright Linas Vepstas <linas@austin.ibm.com> 2007
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Send comments and feedback to Linas Vepstas <linas@austin.ibm.com>
+ */
+#include <linux/pci.h>
+#include <asm/ppc-pci.h>
+#include <asm/pci-bridge.h>
+#include <linux/kobject.h>
+
+/**
+ * EEH_SHOW_ATTR -- create sysfs entry for eeh statistic
+ * @_name: name of file in sysfs directory
+ * @_memb: name of member in struct pci_dn to access
+ * @_format: printf format for display
+ *
+ * All of the attributes look very similar, so just
+ * auto-gen a cut-n-paste routine to display them.
+ */
+#define EEH_SHOW_ATTR(_name,_memb,_format) \
+static ssize_t eeh_show_##_name(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ struct pci_dev *pdev = to_pci_dev(dev); \
+ struct device_node *dn = pci_device_to_OF_node(pdev); \
+ struct pci_dn *pdn; \
+ \
+ if (!dn || PCI_DN(dn) == NULL) \
+ return 0; \
+ \
+ pdn = PCI_DN(dn); \
+ return sprintf(buf, _format "\n", pdn->_memb); \
+} \
+static DEVICE_ATTR(_name, S_IRUGO, eeh_show_##_name, NULL);
+
+
+EEH_SHOW_ATTR(eeh_mode, eeh_mode, "0x%x");
+EEH_SHOW_ATTR(eeh_config_addr, eeh_config_addr, "0x%x");
+EEH_SHOW_ATTR(eeh_pe_config_addr, eeh_pe_config_addr, "0x%x");
+EEH_SHOW_ATTR(eeh_check_count, eeh_check_count, "%d");
+EEH_SHOW_ATTR(eeh_freeze_count, eeh_freeze_count, "%d");
+EEH_SHOW_ATTR(eeh_false_positives, eeh_false_positives, "%d");
+
+void eeh_sysfs_add_device(struct pci_dev *pdev)
+{
+ int rc=0;
+
+ rc += device_create_file(&pdev->dev, &dev_attr_eeh_mode);
+ rc += device_create_file(&pdev->dev, &dev_attr_eeh_config_addr);
+ rc += device_create_file(&pdev->dev, &dev_attr_eeh_pe_config_addr);
+ rc += device_create_file(&pdev->dev, &dev_attr_eeh_check_count);
+ rc += device_create_file(&pdev->dev, &dev_attr_eeh_false_positives);
+ rc += device_create_file(&pdev->dev, &dev_attr_eeh_freeze_count);
+
+ if (rc)
+ printk(KERN_WARNING "EEH: Unable to create sysfs entries\n");
+}
+
+void eeh_sysfs_remove_device(struct pci_dev *pdev)
+{
+ device_remove_file(&pdev->dev, &dev_attr_eeh_mode);
+ device_remove_file(&pdev->dev, &dev_attr_eeh_config_addr);
+ device_remove_file(&pdev->dev, &dev_attr_eeh_pe_config_addr);
+ device_remove_file(&pdev->dev, &dev_attr_eeh_check_count);
+ device_remove_file(&pdev->dev, &dev_attr_eeh_false_positives);
+ device_remove_file(&pdev->dev, &dev_attr_eeh_freeze_count);
+}
+
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 362dfbc260a6..8cc6eeeaae2f 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -373,12 +373,23 @@ static void pSeries_lpar_hptab_clear(void)
{
unsigned long size_bytes = 1UL << ppc64_pft_size;
unsigned long hpte_count = size_bytes >> 4;
- unsigned long dummy1, dummy2;
+ unsigned long dummy1, dummy2, dword0;
+ long lpar_rc;
int i;
/* TODO: Use bulk call */
- for (i = 0; i < hpte_count; i++)
- plpar_pte_remove_raw(0, i, 0, &dummy1, &dummy2);
+ for (i = 0; i < hpte_count; i++) {
+ /* dont remove HPTEs with VRMA mappings */
+ lpar_rc = plpar_pte_remove_raw(H_ANDCOND, i, HPTE_V_1TB_SEG,
+ &dummy1, &dummy2);
+ if (lpar_rc == H_NOT_FOUND) {
+ lpar_rc = plpar_pte_read_raw(0, i, &dword0, &dummy1);
+ if (!lpar_rc && ((dword0 & HPTE_V_VRMA_MASK)
+ != HPTE_V_VRMA_MASK))
+ /* Can be hpte for 1TB Seg. So remove it */
+ plpar_pte_remove_raw(0, i, 0, &dummy1, &dummy2);
+ }
+ }
}
/*
diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c
index ffaf6c5c517b..47f0e0857f0e 100644
--- a/arch/powerpc/platforms/pseries/pci_dlpar.c
+++ b/arch/powerpc/platforms/pseries/pci_dlpar.c
@@ -110,8 +110,6 @@ pcibios_fixup_new_pci_devices(struct pci_bus *bus, int fix_bus)
}
}
}
-
- eeh_add_device_tree_late(bus);
}
EXPORT_SYMBOL_GPL(pcibios_fixup_new_pci_devices);
@@ -139,6 +137,8 @@ pcibios_pci_config_bridge(struct pci_dev *dev)
/* Make the discovered devices available */
pci_bus_add_devices(child_bus);
+
+ eeh_add_device_tree_late(child_bus);
return 0;
}
@@ -171,6 +171,7 @@ pcibios_add_pci_devices(struct pci_bus * bus)
if (!list_empty(&bus->devices)) {
pcibios_fixup_new_pci_devices(bus, 0);
pci_bus_add_devices(bus);
+ eeh_add_device_tree_late(bus);
}
} else if (mode == PCI_PROBE_NORMAL) {
/* use legacy probe */
@@ -179,6 +180,7 @@ pcibios_add_pci_devices(struct pci_bus * bus)
if (num) {
pcibios_fixup_new_pci_devices(bus, 1);
pci_bus_add_devices(bus);
+ eeh_add_device_tree_late(bus);
}
list_for_each_entry(dev, &bus->devices, bus_list)
@@ -200,8 +202,6 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
rtas_setup_phb(phb);
pci_process_bridge_OF_ranges(phb, dn, 0);
- pci_setup_phb_io_dynamic(phb, primary);
-
pci_devs_phb_init_dynamic(phb);
if (dn->child)
@@ -210,6 +210,7 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
scan_phb(phb);
pcibios_fixup_new_pci_devices(phb->bus, 0);
pci_bus_add_devices(phb->bus);
+ eeh_add_device_tree_late(phb->bus);
return phb;
}
diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h
index 2e4d10c9eea8..d003c80fa31d 100644
--- a/arch/powerpc/platforms/pseries/plpar_wrappers.h
+++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h
@@ -108,6 +108,21 @@ static inline long plpar_pte_read(unsigned long flags, unsigned long ptex,
return rc;
}
+/* plpar_pte_read_raw can be called in real mode. It calls plpar_hcall_raw */
+static inline long plpar_pte_read_raw(unsigned long flags, unsigned long ptex,
+ unsigned long *old_pteh_ret, unsigned long *old_ptel_ret)
+{
+ long rc;
+ unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+ rc = plpar_hcall_raw(H_READ, retbuf, flags, ptex);
+
+ *old_pteh_ret = retbuf[0];
+ *old_ptel_ret = retbuf[1];
+
+ return rc;
+}
+
static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex,
unsigned long avpn)
{
diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h
index 2729d559fd91..61e19f78b923 100644
--- a/arch/powerpc/platforms/pseries/pseries.h
+++ b/arch/powerpc/platforms/pseries/pseries.h
@@ -33,6 +33,8 @@ static inline void setup_kexec_cpu_down_xics(void) { }
static inline void setup_kexec_cpu_down_mpic(void) { }
#endif
+extern void pSeries_final_fixup(void);
+
/* Poweron flag used for enabling auto ups restart */
extern unsigned long rtas_poweron_auto;
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index 5aa97aff3391..c02f8742c54d 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -123,7 +123,7 @@ static int pSeries_reconfig_add_node(const char *path, struct property *proplist
strcpy(np->full_name, path);
np->properties = proplist;
- OF_MARK_DYNAMIC(np);
+ of_node_set_flag(np, OF_DYNAMIC);
kref_init(&np->kref);
np->parent = derive_parent(path);
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 470db6efaeb6..de6c2efd0479 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -399,6 +399,7 @@ static void pseries_dedicated_idle_sleep(void)
* a good time to find other work to dispatch.
*/
get_lppaca()->idle = 1;
+ get_lppaca()->donate_dedicated_cpu = 1;
/*
* We come in with interrupts disabled, and need_resched()
@@ -431,6 +432,7 @@ static void pseries_dedicated_idle_sleep(void)
out:
HMT_medium();
+ get_lppaca()->donate_dedicated_cpu = 0;
get_lppaca()->idle = 0;
}
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index f1df942072bb..5bd90a7eb763 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -156,9 +156,9 @@ static inline void lpar_qirr_info(int n_cpu , u8 value)
#ifdef CONFIG_SMP
-static int get_irq_server(unsigned int virq)
+static int get_irq_server(unsigned int virq, unsigned int strict_check)
{
- unsigned int server;
+ int server;
/* For the moment only implement delivery to all cpus or one cpu */
cpumask_t cpumask = irq_desc[virq].affinity;
cpumask_t tmp = CPU_MASK_NONE;
@@ -166,22 +166,25 @@ static int get_irq_server(unsigned int virq)
if (!distribute_irqs)
return default_server;
- if (cpus_equal(cpumask, CPU_MASK_ALL)) {
- server = default_distrib_server;
- } else {
+ if (!cpus_equal(cpumask, CPU_MASK_ALL)) {
cpus_and(tmp, cpu_online_map, cpumask);
- if (cpus_empty(tmp))
- server = default_distrib_server;
- else
- server = get_hard_smp_processor_id(first_cpu(tmp));
+ server = first_cpu(tmp);
+
+ if (server < NR_CPUS)
+ return get_hard_smp_processor_id(server);
+
+ if (strict_check)
+ return -1;
}
- return server;
+ if (cpus_equal(cpu_online_map, cpu_present_map))
+ return default_distrib_server;
+ return default_server;
}
#else
-static int get_irq_server(unsigned int virq)
+static int get_irq_server(unsigned int virq, unsigned int strict_check)
{
return default_server;
}
@@ -192,7 +195,7 @@ static void xics_unmask_irq(unsigned int virq)
{
unsigned int irq;
int call_status;
- unsigned int server;
+ int server;
pr_debug("xics: unmask virq %d\n", virq);
@@ -201,7 +204,7 @@ static void xics_unmask_irq(unsigned int virq)
if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS)
return;
- server = get_irq_server(virq);
+ server = get_irq_server(virq, 0);
call_status = rtas_call(ibm_set_xive, 3, 1, NULL, irq, server,
DEFAULT_PRIORITY);
@@ -398,8 +401,7 @@ static void xics_set_affinity(unsigned int virq, cpumask_t cpumask)
unsigned int irq;
int status;
int xics_status[2];
- unsigned long newmask;
- cpumask_t tmp = CPU_MASK_NONE;
+ int irq_server;
irq = (unsigned int)irq_map[virq].hwirq;
if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS)
@@ -413,18 +415,21 @@ static void xics_set_affinity(unsigned int virq, cpumask_t cpumask)
return;
}
- /* For the moment only implement delivery to all cpus or one cpu */
- if (cpus_equal(cpumask, CPU_MASK_ALL)) {
- newmask = default_distrib_server;
- } else {
- cpus_and(tmp, cpu_online_map, cpumask);
- if (cpus_empty(tmp))
- return;
- newmask = get_hard_smp_processor_id(first_cpu(tmp));
+ /*
+ * For the moment only implement delivery to all cpus or one cpu.
+ * Get current irq_server for the given irq
+ */
+ irq_server = get_irq_server(irq, 1);
+ if (irq_server == -1) {
+ char cpulist[128];
+ cpumask_scnprintf(cpulist, sizeof(cpulist), cpumask);
+ printk(KERN_WARNING "xics_set_affinity: No online cpus in "
+ "the mask %s for irq %d\n", cpulist, virq);
+ return;
}
status = rtas_call(ibm_set_xive, 3, 1, NULL,
- irq, newmask, xics_status[1]);
+ irq, irq_server, xics_status[1]);
if (status) {
printk(KERN_ERR "xics_set_affinity: irq=%u ibm,set-xive "
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-29 12:55:51 +0000