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-rw-r--r--arch/powerpc/platforms/pseries/cmm.c16
-rw-r--r--arch/powerpc/platforms/pseries/eeh_pseries.c162
-rw-r--r--arch/powerpc/platforms/pseries/firmware.c2
-rw-r--r--arch/powerpc/platforms/pseries/hotplug-cpu.c3
-rw-r--r--arch/powerpc/platforms/pseries/hotplug-memory.c522
-rw-r--r--arch/powerpc/platforms/pseries/hvCall_inst.c2
-rw-r--r--arch/powerpc/platforms/pseries/ibmebus.c4
-rw-r--r--arch/powerpc/platforms/pseries/iommu.c8
-rw-r--r--arch/powerpc/platforms/pseries/lparcfg.c8
-rw-r--r--arch/powerpc/platforms/pseries/mobility.c2
-rw-r--r--arch/powerpc/platforms/pseries/of_helpers.c60
-rw-r--r--arch/powerpc/platforms/pseries/pci.c177
-rw-r--r--arch/powerpc/platforms/pseries/pseries_energy.c126
-rw-r--r--arch/powerpc/platforms/pseries/reconfig.c2
-rw-r--r--arch/powerpc/platforms/pseries/scanlog.c2
-rw-r--r--arch/powerpc/platforms/pseries/setup.c176
-rw-r--r--arch/powerpc/platforms/pseries/suspend.c3
17 files changed, 894 insertions, 381 deletions
diff --git a/arch/powerpc/platforms/pseries/cmm.c b/arch/powerpc/platforms/pseries/cmm.c
index 560aefde06c0..25427a48feae 100644
--- a/arch/powerpc/platforms/pseries/cmm.c
+++ b/arch/powerpc/platforms/pseries/cmm.c
@@ -72,20 +72,20 @@ MODULE_DESCRIPTION("IBM System p Collaborative Memory Manager");
MODULE_LICENSE("GPL");
MODULE_VERSION(CMM_DRIVER_VERSION);
-module_param_named(delay, delay, uint, S_IRUGO | S_IWUSR);
+module_param_named(delay, delay, uint, 0644);
MODULE_PARM_DESC(delay, "Delay (in seconds) between polls to query hypervisor paging requests. "
"[Default=" __stringify(CMM_DEFAULT_DELAY) "]");
-module_param_named(hotplug_delay, hotplug_delay, uint, S_IRUGO | S_IWUSR);
+module_param_named(hotplug_delay, hotplug_delay, uint, 0644);
MODULE_PARM_DESC(hotplug_delay, "Delay (in seconds) after memory hotplug remove "
"before loaning resumes. "
"[Default=" __stringify(CMM_HOTPLUG_DELAY) "]");
-module_param_named(oom_kb, oom_kb, uint, S_IRUGO | S_IWUSR);
+module_param_named(oom_kb, oom_kb, uint, 0644);
MODULE_PARM_DESC(oom_kb, "Amount of memory in kb to free on OOM. "
"[Default=" __stringify(CMM_OOM_KB) "]");
-module_param_named(min_mem_mb, min_mem_mb, ulong, S_IRUGO | S_IWUSR);
+module_param_named(min_mem_mb, min_mem_mb, ulong, 0644);
MODULE_PARM_DESC(min_mem_mb, "Minimum amount of memory (in MB) to not balloon. "
"[Default=" __stringify(CMM_MIN_MEM_MB) "]");
-module_param_named(debug, cmm_debug, uint, S_IRUGO | S_IWUSR);
+module_param_named(debug, cmm_debug, uint, 0644);
MODULE_PARM_DESC(debug, "Enable module debugging logging. Set to 1 to enable. "
"[Default=" __stringify(CMM_DEBUG) "]");
@@ -385,7 +385,7 @@ static int cmm_thread(void *dummy)
{ \
return sprintf(buf, format, ##args); \
} \
- static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL)
+ static DEVICE_ATTR(name, 0444, show_##name, NULL)
CMM_SHOW(loaned_kb, "%lu\n", PAGES2KB(loaned_pages));
CMM_SHOW(loaned_target_kb, "%lu\n", PAGES2KB(loaned_pages_target));
@@ -411,7 +411,7 @@ static ssize_t store_oom_pages(struct device *dev,
return count;
}
-static DEVICE_ATTR(oom_freed_kb, S_IWUSR | S_IRUGO,
+static DEVICE_ATTR(oom_freed_kb, 0644,
show_oom_pages, store_oom_pages);
static struct device_attribute *cmm_attrs[] = {
@@ -765,7 +765,7 @@ static int cmm_set_disable(const char *val, const struct kernel_param *kp)
}
module_param_call(disable, cmm_set_disable, param_get_uint,
- &cmm_disabled, S_IRUGO | S_IWUSR);
+ &cmm_disabled, 0644);
MODULE_PARM_DESC(disable, "Disable CMM. Set to 1 to disable. "
"[Default=" __stringify(CMM_DISABLE) "]");
diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
index 6b812ad990e4..823cb27efa8b 100644
--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
@@ -55,6 +55,43 @@ static int ibm_get_config_addr_info;
static int ibm_get_config_addr_info2;
static int ibm_configure_pe;
+#ifdef CONFIG_PCI_IOV
+void pseries_pcibios_bus_add_device(struct pci_dev *pdev)
+{
+ struct pci_dn *pdn = pci_get_pdn(pdev);
+ struct pci_dn *physfn_pdn;
+ struct eeh_dev *edev;
+
+ if (!pdev->is_virtfn)
+ return;
+
+ pdn->device_id = pdev->device;
+ pdn->vendor_id = pdev->vendor;
+ pdn->class_code = pdev->class;
+ /*
+ * Last allow unfreeze return code used for retrieval
+ * by user space in eeh-sysfs to show the last command
+ * completion from platform.
+ */
+ pdn->last_allow_rc = 0;
+ physfn_pdn = pci_get_pdn(pdev->physfn);
+ pdn->pe_number = physfn_pdn->pe_num_map[pdn->vf_index];
+ edev = pdn_to_eeh_dev(pdn);
+
+ /*
+ * The following operations will fail if VF's sysfs files
+ * aren't created or its resources aren't finalized.
+ */
+ eeh_add_device_early(pdn);
+ eeh_add_device_late(pdev);
+ edev->pe_config_addr = (pdn->busno << 16) | (pdn->devfn << 8);
+ eeh_rmv_from_parent_pe(edev); /* Remove as it is adding to bus pe */
+ eeh_add_to_parent_pe(edev); /* Add as VF PE type */
+ eeh_sysfs_add_device(pdev);
+
+}
+#endif
+
/*
* Buffer for reporting slot-error-detail rtas calls. Its here
* in BSS, and not dynamically alloced, so that it ends up in
@@ -120,6 +157,11 @@ static int pseries_eeh_init(void)
/* Set EEH probe mode */
eeh_add_flag(EEH_PROBE_MODE_DEVTREE | EEH_ENABLE_IO_FOR_LOG);
+#ifdef CONFIG_PCI_IOV
+ /* Set EEH machine dependent code */
+ ppc_md.pcibios_bus_add_device = pseries_pcibios_bus_add_device;
+#endif
+
return 0;
}
@@ -684,6 +726,121 @@ static int pseries_eeh_write_config(struct pci_dn *pdn, int where, int size, u32
return rtas_write_config(pdn, where, size, val);
}
+static int pseries_eeh_restore_config(struct pci_dn *pdn)
+{
+ struct eeh_dev *edev = pdn_to_eeh_dev(pdn);
+ s64 ret = 0;
+
+ if (!edev)
+ return -EEXIST;
+
+ /*
+ * FIXME: The MPS, error routing rules, timeout setting are worthy
+ * to be exported by firmware in extendible way.
+ */
+ if (edev->physfn)
+ ret = eeh_restore_vf_config(pdn);
+
+ if (ret) {
+ pr_warn("%s: Can't reinit PCI dev 0x%x (%lld)\n",
+ __func__, edev->pe_config_addr, ret);
+ return -EIO;
+ }
+
+ return ret;
+}
+
+#ifdef CONFIG_PCI_IOV
+int pseries_send_allow_unfreeze(struct pci_dn *pdn,
+ u16 *vf_pe_array, int cur_vfs)
+{
+ int rc;
+ int ibm_allow_unfreeze = rtas_token("ibm,open-sriov-allow-unfreeze");
+ unsigned long buid, addr;
+
+ addr = rtas_config_addr(pdn->busno, pdn->devfn, 0);
+ buid = pdn->phb->buid;
+ spin_lock(&rtas_data_buf_lock);
+ memcpy(rtas_data_buf, vf_pe_array, RTAS_DATA_BUF_SIZE);
+ rc = rtas_call(ibm_allow_unfreeze, 5, 1, NULL,
+ addr,
+ BUID_HI(buid),
+ BUID_LO(buid),
+ rtas_data_buf, cur_vfs * sizeof(u16));
+ spin_unlock(&rtas_data_buf_lock);
+ if (rc)
+ pr_warn("%s: Failed to allow unfreeze for PHB#%x-PE#%lx, rc=%x\n",
+ __func__,
+ pdn->phb->global_number, addr, rc);
+ return rc;
+}
+
+static int pseries_call_allow_unfreeze(struct eeh_dev *edev)
+{
+ struct pci_dn *pdn, *tmp, *parent, *physfn_pdn;
+ int cur_vfs = 0, rc = 0, vf_index, bus, devfn;
+ u16 *vf_pe_array;
+
+ vf_pe_array = kzalloc(RTAS_DATA_BUF_SIZE, GFP_KERNEL);
+ if (!vf_pe_array)
+ return -ENOMEM;
+ if (pci_num_vf(edev->physfn ? edev->physfn : edev->pdev)) {
+ if (edev->pdev->is_physfn) {
+ cur_vfs = pci_num_vf(edev->pdev);
+ pdn = eeh_dev_to_pdn(edev);
+ parent = pdn->parent;
+ for (vf_index = 0; vf_index < cur_vfs; vf_index++)
+ vf_pe_array[vf_index] =
+ cpu_to_be16(pdn->pe_num_map[vf_index]);
+ rc = pseries_send_allow_unfreeze(pdn, vf_pe_array,
+ cur_vfs);
+ pdn->last_allow_rc = rc;
+ for (vf_index = 0; vf_index < cur_vfs; vf_index++) {
+ list_for_each_entry_safe(pdn, tmp,
+ &parent->child_list,
+ list) {
+ bus = pci_iov_virtfn_bus(edev->pdev,
+ vf_index);
+ devfn = pci_iov_virtfn_devfn(edev->pdev,
+ vf_index);
+ if (pdn->busno != bus ||
+ pdn->devfn != devfn)
+ continue;
+ pdn->last_allow_rc = rc;
+ }
+ }
+ } else {
+ pdn = pci_get_pdn(edev->pdev);
+ vf_pe_array[0] = cpu_to_be16(pdn->pe_number);
+ physfn_pdn = pci_get_pdn(edev->physfn);
+ rc = pseries_send_allow_unfreeze(physfn_pdn,
+ vf_pe_array, 1);
+ pdn->last_allow_rc = rc;
+ }
+ }
+
+ kfree(vf_pe_array);
+ return rc;
+}
+
+static int pseries_notify_resume(struct pci_dn *pdn)
+{
+ struct eeh_dev *edev = pdn_to_eeh_dev(pdn);
+
+ if (!edev)
+ return -EEXIST;
+
+ if (rtas_token("ibm,open-sriov-allow-unfreeze")
+ == RTAS_UNKNOWN_SERVICE)
+ return -EINVAL;
+
+ if (edev->pdev->is_physfn || edev->pdev->is_virtfn)
+ return pseries_call_allow_unfreeze(edev);
+
+ return 0;
+}
+#endif
+
static struct eeh_ops pseries_eeh_ops = {
.name = "pseries",
.init = pseries_eeh_init,
@@ -699,7 +856,10 @@ static struct eeh_ops pseries_eeh_ops = {
.read_config = pseries_eeh_read_config,
.write_config = pseries_eeh_write_config,
.next_error = NULL,
- .restore_config = NULL
+ .restore_config = pseries_eeh_restore_config,
+#ifdef CONFIG_PCI_IOV
+ .notify_resume = pseries_notify_resume
+#endif
};
/**
diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c
index 63cc82ad58ac..a3bbeb43689e 100644
--- a/arch/powerpc/platforms/pseries/firmware.c
+++ b/arch/powerpc/platforms/pseries/firmware.c
@@ -114,6 +114,8 @@ static __initdata struct vec5_fw_feature
vec5_fw_features_table[] = {
{FW_FEATURE_TYPE1_AFFINITY, OV5_TYPE1_AFFINITY},
{FW_FEATURE_PRRN, OV5_PRRN},
+ {FW_FEATURE_DRMEM_V2, OV5_DRMEM_V2},
+ {FW_FEATURE_DRC_INFO, OV5_DRC_INFO},
};
static void __init fw_vec5_feature_init(const char *vec5, unsigned long len)
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index a7d14aa7bb7c..dceb51454d8d 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -340,6 +340,8 @@ static void pseries_remove_processor(struct device_node *np)
cpu_maps_update_done();
}
+extern int find_and_online_cpu_nid(int cpu);
+
static int dlpar_online_cpu(struct device_node *dn)
{
int rc = 0;
@@ -364,6 +366,7 @@ static int dlpar_online_cpu(struct device_node *dn)
!= CPU_STATE_OFFLINE);
cpu_maps_update_done();
timed_topology_update(1);
+ find_and_online_cpu_nid(cpu);
rc = device_online(get_cpu_device(cpu));
if (rc)
goto out;
diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 1d48ab424bd9..c1578f54c626 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -23,6 +23,7 @@
#include <asm/prom.h>
#include <asm/sparsemem.h>
#include <asm/fadump.h>
+#include <asm/drmem.h>
#include "pseries.h"
static bool rtas_hp_event;
@@ -100,100 +101,6 @@ static struct property *dlpar_clone_property(struct property *prop,
return new_prop;
}
-static struct property *dlpar_clone_drconf_property(struct device_node *dn)
-{
- struct property *prop, *new_prop;
- struct of_drconf_cell *lmbs;
- u32 num_lmbs, *p;
- int i;
-
- prop = of_find_property(dn, "ibm,dynamic-memory", NULL);
- if (!prop)
- return NULL;
-
- new_prop = dlpar_clone_property(prop, prop->length);
- if (!new_prop)
- return NULL;
-
- /* Convert the property to cpu endian-ness */
- p = new_prop->value;
- *p = be32_to_cpu(*p);
-
- num_lmbs = *p++;
- lmbs = (struct of_drconf_cell *)p;
-
- for (i = 0; i < num_lmbs; i++) {
- lmbs[i].base_addr = be64_to_cpu(lmbs[i].base_addr);
- lmbs[i].drc_index = be32_to_cpu(lmbs[i].drc_index);
- lmbs[i].aa_index = be32_to_cpu(lmbs[i].aa_index);
- lmbs[i].flags = be32_to_cpu(lmbs[i].flags);
- }
-
- return new_prop;
-}
-
-static void dlpar_update_drconf_property(struct device_node *dn,
- struct property *prop)
-{
- struct of_drconf_cell *lmbs;
- u32 num_lmbs, *p;
- int i;
-
- /* Convert the property back to BE */
- p = prop->value;
- num_lmbs = *p;
- *p = cpu_to_be32(*p);
- p++;
-
- lmbs = (struct of_drconf_cell *)p;
- for (i = 0; i < num_lmbs; i++) {
- lmbs[i].base_addr = cpu_to_be64(lmbs[i].base_addr);
- lmbs[i].drc_index = cpu_to_be32(lmbs[i].drc_index);
- lmbs[i].aa_index = cpu_to_be32(lmbs[i].aa_index);
- lmbs[i].flags = cpu_to_be32(lmbs[i].flags);
- }
-
- rtas_hp_event = true;
- of_update_property(dn, prop);
- rtas_hp_event = false;
-}
-
-static int dlpar_update_device_tree_lmb(struct of_drconf_cell *lmb)
-{
- struct device_node *dn;
- struct property *prop;
- struct of_drconf_cell *lmbs;
- u32 *p, num_lmbs;
- int i;
-
- dn = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");
- if (!dn)
- return -ENODEV;
-
- prop = dlpar_clone_drconf_property(dn);
- if (!prop) {
- of_node_put(dn);
- return -ENODEV;
- }
-
- p = prop->value;
- num_lmbs = *p++;
- lmbs = (struct of_drconf_cell *)p;
-
- for (i = 0; i < num_lmbs; i++) {
- if (lmbs[i].drc_index == lmb->drc_index) {
- lmbs[i].flags = lmb->flags;
- lmbs[i].aa_index = lmb->aa_index;
-
- dlpar_update_drconf_property(dn, prop);
- break;
- }
- }
-
- of_node_put(dn);
- return 0;
-}
-
static u32 find_aa_index(struct device_node *dr_node,
struct property *ala_prop, const u32 *lmb_assoc)
{
@@ -256,7 +163,7 @@ static u32 find_aa_index(struct device_node *dr_node,
return aa_index;
}
-static u32 lookup_lmb_associativity_index(struct of_drconf_cell *lmb)
+static u32 lookup_lmb_associativity_index(struct drmem_lmb *lmb)
{
struct device_node *parent, *lmb_node, *dr_node;
struct property *ala_prop;
@@ -299,9 +206,9 @@ static u32 lookup_lmb_associativity_index(struct of_drconf_cell *lmb)
return aa_index;
}
-static int dlpar_add_device_tree_lmb(struct of_drconf_cell *lmb)
+static int dlpar_add_device_tree_lmb(struct drmem_lmb *lmb)
{
- int aa_index;
+ int rc, aa_index;
lmb->flags |= DRCONF_MEM_ASSIGNED;
@@ -313,17 +220,29 @@ static int dlpar_add_device_tree_lmb(struct of_drconf_cell *lmb)
}
lmb->aa_index = aa_index;
- return dlpar_update_device_tree_lmb(lmb);
+
+ rtas_hp_event = true;
+ rc = drmem_update_dt();
+ rtas_hp_event = false;
+
+ return rc;
}
-static int dlpar_remove_device_tree_lmb(struct of_drconf_cell *lmb)
+static int dlpar_remove_device_tree_lmb(struct drmem_lmb *lmb)
{
+ int rc;
+
lmb->flags &= ~DRCONF_MEM_ASSIGNED;
lmb->aa_index = 0xffffffff;
- return dlpar_update_device_tree_lmb(lmb);
+
+ rtas_hp_event = true;
+ rc = drmem_update_dt();
+ rtas_hp_event = false;
+
+ return rc;
}
-static struct memory_block *lmb_to_memblock(struct of_drconf_cell *lmb)
+static struct memory_block *lmb_to_memblock(struct drmem_lmb *lmb)
{
unsigned long section_nr;
struct mem_section *mem_sect;
@@ -336,7 +255,36 @@ static struct memory_block *lmb_to_memblock(struct of_drconf_cell *lmb)
return mem_block;
}
-static int dlpar_change_lmb_state(struct of_drconf_cell *lmb, bool online)
+static int get_lmb_range(u32 drc_index, int n_lmbs,
+ struct drmem_lmb **start_lmb,
+ struct drmem_lmb **end_lmb)
+{
+ struct drmem_lmb *lmb, *start, *end;
+ struct drmem_lmb *last_lmb;
+
+ start = NULL;
+ for_each_drmem_lmb(lmb) {
+ if (lmb->drc_index == drc_index) {
+ start = lmb;
+ break;
+ }
+ }
+
+ if (!start)
+ return -EINVAL;
+
+ end = &start[n_lmbs - 1];
+
+ last_lmb = &drmem_info->lmbs[drmem_info->n_lmbs - 1];
+ if (end > last_lmb)
+ return -EINVAL;
+
+ *start_lmb = start;
+ *end_lmb = end;
+ return 0;
+}
+
+static int dlpar_change_lmb_state(struct drmem_lmb *lmb, bool online)
{
struct memory_block *mem_block;
int rc;
@@ -357,13 +305,13 @@ static int dlpar_change_lmb_state(struct of_drconf_cell *lmb, bool online)
return rc;
}
-static int dlpar_online_lmb(struct of_drconf_cell *lmb)
+static int dlpar_online_lmb(struct drmem_lmb *lmb)
{
return dlpar_change_lmb_state(lmb, true);
}
#ifdef CONFIG_MEMORY_HOTREMOVE
-static int dlpar_offline_lmb(struct of_drconf_cell *lmb)
+static int dlpar_offline_lmb(struct drmem_lmb *lmb)
{
return dlpar_change_lmb_state(lmb, false);
}
@@ -426,7 +374,7 @@ static int pseries_remove_mem_node(struct device_node *np)
return 0;
}
-static bool lmb_is_removable(struct of_drconf_cell *lmb)
+static bool lmb_is_removable(struct drmem_lmb *lmb)
{
int i, scns_per_block;
int rc = 1;
@@ -458,9 +406,9 @@ static bool lmb_is_removable(struct of_drconf_cell *lmb)
return rc ? true : false;
}
-static int dlpar_add_lmb(struct of_drconf_cell *);
+static int dlpar_add_lmb(struct drmem_lmb *);
-static int dlpar_remove_lmb(struct of_drconf_cell *lmb)
+static int dlpar_remove_lmb(struct drmem_lmb *lmb)
{
unsigned long block_sz;
int nid, rc;
@@ -484,28 +432,25 @@ static int dlpar_remove_lmb(struct of_drconf_cell *lmb)
return 0;
}
-static int dlpar_memory_remove_by_count(u32 lmbs_to_remove,
- struct property *prop)
+static int dlpar_memory_remove_by_count(u32 lmbs_to_remove)
{
- struct of_drconf_cell *lmbs;
+ struct drmem_lmb *lmb;
int lmbs_removed = 0;
int lmbs_available = 0;
- u32 num_lmbs, *p;
- int i, rc;
+ int rc;
pr_info("Attempting to hot-remove %d LMB(s)\n", lmbs_to_remove);
if (lmbs_to_remove == 0)
return -EINVAL;
- p = prop->value;
- num_lmbs = *p++;
- lmbs = (struct of_drconf_cell *)p;
-
/* Validate that there are enough LMBs to satisfy the request */
- for (i = 0; i < num_lmbs; i++) {
- if (lmb_is_removable(&lmbs[i]))
+ for_each_drmem_lmb(lmb) {
+ if (lmb_is_removable(lmb))
lmbs_available++;
+
+ if (lmbs_available == lmbs_to_remove)
+ break;
}
if (lmbs_available < lmbs_to_remove) {
@@ -514,45 +459,47 @@ static int dlpar_memory_remove_by_count(u32 lmbs_to_remove,
return -EINVAL;
}
- for (i = 0; i < num_lmbs && lmbs_removed < lmbs_to_remove; i++) {
- rc = dlpar_remove_lmb(&lmbs[i]);
+ for_each_drmem_lmb(lmb) {
+ rc = dlpar_remove_lmb(lmb);
if (rc)
continue;
- lmbs_removed++;
-
/* Mark this lmb so we can add it later if all of the
* requested LMBs cannot be removed.
*/
- lmbs[i].reserved = 1;
+ drmem_mark_lmb_reserved(lmb);
+
+ lmbs_removed++;
+ if (lmbs_removed == lmbs_to_remove)
+ break;
}
if (lmbs_removed != lmbs_to_remove) {
pr_err("Memory hot-remove failed, adding LMB's back\n");
- for (i = 0; i < num_lmbs; i++) {
- if (!lmbs[i].reserved)
+ for_each_drmem_lmb(lmb) {
+ if (!drmem_lmb_reserved(lmb))
continue;
- rc = dlpar_add_lmb(&lmbs[i]);
+ rc = dlpar_add_lmb(lmb);
if (rc)
pr_err("Failed to add LMB back, drc index %x\n",
- lmbs[i].drc_index);
+ lmb->drc_index);
- lmbs[i].reserved = 0;
+ drmem_remove_lmb_reservation(lmb);
}
rc = -EINVAL;
} else {
- for (i = 0; i < num_lmbs; i++) {
- if (!lmbs[i].reserved)
+ for_each_drmem_lmb(lmb) {
+ if (!drmem_lmb_reserved(lmb))
continue;
- dlpar_release_drc(lmbs[i].drc_index);
+ dlpar_release_drc(lmb->drc_index);
pr_info("Memory at %llx was hot-removed\n",
- lmbs[i].base_addr);
+ lmb->base_addr);
- lmbs[i].reserved = 0;
+ drmem_remove_lmb_reservation(lmb);
}
rc = 0;
}
@@ -560,26 +507,21 @@ static int dlpar_memory_remove_by_count(u32 lmbs_to_remove,
return rc;
}
-static int dlpar_memory_remove_by_index(u32 drc_index, struct property *prop)
+static int dlpar_memory_remove_by_index(u32 drc_index)
{
- struct of_drconf_cell *lmbs;
- u32 num_lmbs, *p;
+ struct drmem_lmb *lmb;
int lmb_found;
- int i, rc;
+ int rc;
pr_info("Attempting to hot-remove LMB, drc index %x\n", drc_index);
- p = prop->value;
- num_lmbs = *p++;
- lmbs = (struct of_drconf_cell *)p;
-
lmb_found = 0;
- for (i = 0; i < num_lmbs; i++) {
- if (lmbs[i].drc_index == drc_index) {
+ for_each_drmem_lmb(lmb) {
+ if (lmb->drc_index == drc_index) {
lmb_found = 1;
- rc = dlpar_remove_lmb(&lmbs[i]);
+ rc = dlpar_remove_lmb(lmb);
if (!rc)
- dlpar_release_drc(lmbs[i].drc_index);
+ dlpar_release_drc(lmb->drc_index);
break;
}
@@ -590,35 +532,30 @@ static int dlpar_memory_remove_by_index(u32 drc_index, struct property *prop)
if (rc)
pr_info("Failed to hot-remove memory at %llx\n",
- lmbs[i].base_addr);
+ lmb->base_addr);
else
- pr_info("Memory at %llx was hot-removed\n", lmbs[i].base_addr);
+ pr_info("Memory at %llx was hot-removed\n", lmb->base_addr);
return rc;
}
-static int dlpar_memory_readd_by_index(u32 drc_index, struct property *prop)
+static int dlpar_memory_readd_by_index(u32 drc_index)
{
- struct of_drconf_cell *lmbs;
- u32 num_lmbs, *p;
+ struct drmem_lmb *lmb;
int lmb_found;
- int i, rc;
+ int rc;
pr_info("Attempting to update LMB, drc index %x\n", drc_index);
- p = prop->value;
- num_lmbs = *p++;
- lmbs = (struct of_drconf_cell *)p;
-
lmb_found = 0;
- for (i = 0; i < num_lmbs; i++) {
- if (lmbs[i].drc_index == drc_index) {
+ for_each_drmem_lmb(lmb) {
+ if (lmb->drc_index == drc_index) {
lmb_found = 1;
- rc = dlpar_remove_lmb(&lmbs[i]);
+ rc = dlpar_remove_lmb(lmb);
if (!rc) {
- rc = dlpar_add_lmb(&lmbs[i]);
+ rc = dlpar_add_lmb(lmb);
if (rc)
- dlpar_release_drc(lmbs[i].drc_index);
+ dlpar_release_drc(lmb->drc_index);
}
break;
}
@@ -629,20 +566,18 @@ static int dlpar_memory_readd_by_index(u32 drc_index, struct property *prop)
if (rc)
pr_info("Failed to update memory at %llx\n",
- lmbs[i].base_addr);
+ lmb->base_addr);
else
- pr_info("Memory at %llx was updated\n", lmbs[i].base_addr);
+ pr_info("Memory at %llx was updated\n", lmb->base_addr);
return rc;
}
-static int dlpar_memory_remove_by_ic(u32 lmbs_to_remove, u32 drc_index,
- struct property *prop)
+static int dlpar_memory_remove_by_ic(u32 lmbs_to_remove, u32 drc_index)
{
- struct of_drconf_cell *lmbs;
- u32 num_lmbs, *p;
- int i, rc, start_lmb_found;
- int lmbs_available = 0, start_index = 0, end_index;
+ struct drmem_lmb *lmb, *start_lmb, *end_lmb;
+ int lmbs_available = 0;
+ int rc;
pr_info("Attempting to hot-remove %u LMB(s) at %x\n",
lmbs_to_remove, drc_index);
@@ -650,29 +585,13 @@ static int dlpar_memory_remove_by_ic(u32 lmbs_to_remove, u32 drc_index,
if (lmbs_to_remove == 0)
return -EINVAL;
- p = prop->value;
- num_lmbs = *p++;
- lmbs = (struct of_drconf_cell *)p;
- start_lmb_found = 0;
-
- /* Navigate to drc_index */
- while (start_index < num_lmbs) {
- if (lmbs[start_index].drc_index == drc_index) {
- start_lmb_found = 1;
- break;
- }
-
- start_index++;
- }
-
- if (!start_lmb_found)
+ rc = get_lmb_range(drc_index, lmbs_to_remove, &start_lmb, &end_lmb);
+ if (rc)
return -EINVAL;
- end_index = start_index + lmbs_to_remove;
-
/* Validate that there are enough LMBs to satisfy the request */
- for (i = start_index; i < end_index; i++) {
- if (lmbs[i].flags & DRCONF_MEM_RESERVED)
+ for_each_drmem_lmb_in_range(lmb, start_lmb, end_lmb) {
+ if (lmb->flags & DRCONF_MEM_RESERVED)
break;
lmbs_available++;
@@ -681,42 +600,43 @@ static int dlpar_memory_remove_by_ic(u32 lmbs_to_remove, u32 drc_index,
if (lmbs_available < lmbs_to_remove)
return -EINVAL;
- for (i = start_index; i < end_index; i++) {
- if (!(lmbs[i].flags & DRCONF_MEM_ASSIGNED))
+ for_each_drmem_lmb_in_range(lmb, start_lmb, end_lmb) {
+ if (!(lmb->flags & DRCONF_MEM_ASSIGNED))
continue;
- rc = dlpar_remove_lmb(&lmbs[i]);
+ rc = dlpar_remove_lmb(lmb);
if (rc)
break;
- lmbs[i].reserved = 1;
+ drmem_mark_lmb_reserved(lmb);
}
if (rc) {
pr_err("Memory indexed-count-remove failed, adding any removed LMBs\n");
- for (i = start_index; i < end_index; i++) {
- if (!lmbs[i].reserved)
+
+ for_each_drmem_lmb_in_range(lmb, start_lmb, end_lmb) {
+ if (!drmem_lmb_reserved(lmb))
continue;
- rc = dlpar_add_lmb(&lmbs[i]);
+ rc = dlpar_add_lmb(lmb);
if (rc)
pr_err("Failed to add LMB, drc index %x\n",
- be32_to_cpu(lmbs[i].drc_index));
+ lmb->drc_index);
- lmbs[i].reserved = 0;
+ drmem_remove_lmb_reservation(lmb);
}
rc = -EINVAL;
} else {
- for (i = start_index; i < end_index; i++) {
- if (!lmbs[i].reserved)
+ for_each_drmem_lmb_in_range(lmb, start_lmb, end_lmb) {
+ if (!drmem_lmb_reserved(lmb))
continue;
- dlpar_release_drc(lmbs[i].drc_index);
+ dlpar_release_drc(lmb->drc_index);
pr_info("Memory at %llx (drc index %x) was hot-removed\n",
- lmbs[i].base_addr, lmbs[i].drc_index);
+ lmb->base_addr, lmb->drc_index);
- lmbs[i].reserved = 0;
+ drmem_remove_lmb_reservation(lmb);
}
}
@@ -737,32 +657,30 @@ static inline int dlpar_memory_remove(struct pseries_hp_errorlog *hp_elog)
{
return -EOPNOTSUPP;
}
-static int dlpar_remove_lmb(struct of_drconf_cell *lmb)
+static int dlpar_remove_lmb(struct drmem_lmb *lmb)
{
return -EOPNOTSUPP;
}
-static int dlpar_memory_remove_by_count(u32 lmbs_to_remove,
- struct property *prop)
+static int dlpar_memory_remove_by_count(u32 lmbs_to_remove)
{
return -EOPNOTSUPP;
}
-static int dlpar_memory_remove_by_index(u32 drc_index, struct property *prop)
+static int dlpar_memory_remove_by_index(u32 drc_index)
{
return -EOPNOTSUPP;
}
-static int dlpar_memory_readd_by_index(u32 drc_index, struct property *prop)
+static int dlpar_memory_readd_by_index(u32 drc_index)
{
return -EOPNOTSUPP;
}
-static int dlpar_memory_remove_by_ic(u32 lmbs_to_remove, u32 drc_index,
- struct property *prop)
+static int dlpar_memory_remove_by_ic(u32 lmbs_to_remove, u32 drc_index)
{
return -EOPNOTSUPP;
}
#endif /* CONFIG_MEMORY_HOTREMOVE */
-static int dlpar_add_lmb(struct of_drconf_cell *lmb)
+static int dlpar_add_lmb(struct drmem_lmb *lmb)
{
unsigned long block_sz;
int nid, rc;
@@ -801,77 +719,79 @@ static int dlpar_add_lmb(struct of_drconf_cell *lmb)
return rc;
}
-static int dlpar_memory_add_by_count(u32 lmbs_to_add, struct property *prop)
+static int dlpar_memory_add_by_count(u32 lmbs_to_add)
{
- struct of_drconf_cell *lmbs;
- u32 num_lmbs, *p;
+ struct drmem_lmb *lmb;
int lmbs_available = 0;
int lmbs_added = 0;
- int i, rc;
+ int rc;
pr_info("Attempting to hot-add %d LMB(s)\n", lmbs_to_add);
if (lmbs_to_add == 0)
return -EINVAL;
- p = prop->value;
- num_lmbs = *p++;
- lmbs = (struct of_drconf_cell *)p;
-
/* Validate that there are enough LMBs to satisfy the request */
- for (i = 0; i < num_lmbs; i++) {
- if (!(lmbs[i].flags & DRCONF_MEM_ASSIGNED))
+ for_each_drmem_lmb(lmb) {
+ if (!(lmb->flags & DRCONF_MEM_ASSIGNED))
lmbs_available++;
+
+ if (lmbs_available == lmbs_to_add)
+ break;
}
if (lmbs_available < lmbs_to_add)
return -EINVAL;
- for (i = 0; i < num_lmbs && lmbs_to_add != lmbs_added; i++) {
- if (lmbs[i].flags & DRCONF_MEM_ASSIGNED)
+ for_each_drmem_lmb(lmb) {
+ if (lmb->flags & DRCONF_MEM_ASSIGNED)
continue;
- rc = dlpar_acquire_drc(lmbs[i].drc_index);
+ rc = dlpar_acquire_drc(lmb->drc_index);
if (rc)
continue;
- rc = dlpar_add_lmb(&lmbs[i]);
+ rc = dlpar_add_lmb(lmb);
if (rc) {
- dlpar_release_drc(lmbs[i].drc_index);
+ dlpar_release_drc(lmb->drc_index);
continue;
}
- lmbs_added++;
-
/* Mark this lmb so we can remove it later if all of the
* requested LMBs cannot be added.
*/
- lmbs[i].reserved = 1;
+ drmem_mark_lmb_reserved(lmb);
+
+ lmbs_added++;
+ if (lmbs_added == lmbs_to_add)
+ break;
}
if (lmbs_added != lmbs_to_add) {
pr_err("Memory hot-add failed, removing any added LMBs\n");
- for (i = 0; i < num_lmbs; i++) {
- if (!lmbs[i].reserved)
+ for_each_drmem_lmb(lmb) {
+ if (!drmem_lmb_reserved(lmb))
continue;
- rc = dlpar_remove_lmb(&lmbs[i]);
+ rc = dlpar_remove_lmb(lmb);
if (rc)
pr_err("Failed to remove LMB, drc index %x\n",
- be32_to_cpu(lmbs[i].drc_index));
+ lmb->drc_index);
else
- dlpar_release_drc(lmbs[i].drc_index);
+ dlpar_release_drc(lmb->drc_index);
+
+ drmem_remove_lmb_reservation(lmb);
}
rc = -EINVAL;
} else {
- for (i = 0; i < num_lmbs; i++) {
- if (!lmbs[i].reserved)
+ for_each_drmem_lmb(lmb) {
+ if (!drmem_lmb_reserved(lmb))
continue;
pr_info("Memory at %llx (drc index %x) was hot-added\n",
- lmbs[i].base_addr, lmbs[i].drc_index);
- lmbs[i].reserved = 0;
+ lmb->base_addr, lmb->drc_index);
+ drmem_remove_lmb_reservation(lmb);
}
rc = 0;
}
@@ -879,28 +799,22 @@ static int dlpar_memory_add_by_count(u32 lmbs_to_add, struct property *prop)
return rc;
}
-static int dlpar_memory_add_by_index(u32 drc_index, struct property *prop)
+static int dlpar_memory_add_by_index(u32 drc_index)
{
- struct of_drconf_cell *lmbs;
- u32 num_lmbs, *p;
- int i, lmb_found;
- int rc;
+ struct drmem_lmb *lmb;
+ int rc, lmb_found;
pr_info("Attempting to hot-add LMB, drc index %x\n", drc_index);
- p = prop->value;
- num_lmbs = *p++;
- lmbs = (struct of_drconf_cell *)p;
-
lmb_found = 0;
- for (i = 0; i < num_lmbs; i++) {
- if (lmbs[i].drc_index == drc_index) {
+ for_each_drmem_lmb(lmb) {
+ if (lmb->drc_index == drc_index) {
lmb_found = 1;
- rc = dlpar_acquire_drc(lmbs[i].drc_index);
+ rc = dlpar_acquire_drc(lmb->drc_index);
if (!rc) {
- rc = dlpar_add_lmb(&lmbs[i]);
+ rc = dlpar_add_lmb(lmb);
if (rc)
- dlpar_release_drc(lmbs[i].drc_index);
+ dlpar_release_drc(lmb->drc_index);
}
break;
@@ -914,18 +828,16 @@ static int dlpar_memory_add_by_index(u32 drc_index, struct property *prop)
pr_info("Failed to hot-add memory, drc index %x\n", drc_index);
else
pr_info("Memory at %llx (drc index %x) was hot-added\n",
- lmbs[i].base_addr, drc_index);
+ lmb->base_addr, drc_index);
return rc;
}
-static int dlpar_memory_add_by_ic(u32 lmbs_to_add, u32 drc_index,
- struct property *prop)
+static int dlpar_memory_add_by_ic(u32 lmbs_to_add, u32 drc_index)
{
- struct of_drconf_cell *lmbs;
- u32 num_lmbs, *p;
- int i, rc, start_lmb_found;
- int lmbs_available = 0, start_index = 0, end_index;
+ struct drmem_lmb *lmb, *start_lmb, *end_lmb;
+ int lmbs_available = 0;
+ int rc;
pr_info("Attempting to hot-add %u LMB(s) at index %x\n",
lmbs_to_add, drc_index);
@@ -933,29 +845,13 @@ static int dlpar_memory_add_by_ic(u32 lmbs_to_add, u32 drc_index,
if (lmbs_to_add == 0)
return -EINVAL;
- p = prop->value;
- num_lmbs = *p++;
- lmbs = (struct of_drconf_cell *)p;
- start_lmb_found = 0;
-
- /* Navigate to drc_index */
- while (start_index < num_lmbs) {
- if (lmbs[start_index].drc_index == drc_index) {
- start_lmb_found = 1;
- break;
- }
-
- start_index++;
- }
-
- if (!start_lmb_found)
+ rc = get_lmb_range(drc_index, lmbs_to_add, &start_lmb, &end_lmb);
+ if (rc)
return -EINVAL;
- end_index = start_index + lmbs_to_add;
-
/* Validate that the LMBs in this range are not reserved */
- for (i = start_index; i < end_index; i++) {
- if (lmbs[i].flags & DRCONF_MEM_RESERVED)
+ for_each_drmem_lmb_in_range(lmb, start_lmb, end_lmb) {
+ if (lmb->flags & DRCONF_MEM_RESERVED)
break;
lmbs_available++;
@@ -964,46 +860,48 @@ static int dlpar_memory_add_by_ic(u32 lmbs_to_add, u32 drc_index,
if (lmbs_available < lmbs_to_add)
return -EINVAL;
- for (i = start_index; i < end_index; i++) {
- if (lmbs[i].flags & DRCONF_MEM_ASSIGNED)
+ for_each_drmem_lmb_in_range(lmb, start_lmb, end_lmb) {
+ if (lmb->flags & DRCONF_MEM_ASSIGNED)
continue;
- rc = dlpar_acquire_drc(lmbs[i].drc_index);
+ rc = dlpar_acquire_drc(lmb->drc_index);
if (rc)
break;
- rc = dlpar_add_lmb(&lmbs[i]);
+ rc = dlpar_add_lmb(lmb);
if (rc) {
- dlpar_release_drc(lmbs[i].drc_index);
+ dlpar_release_drc(lmb->drc_index);
break;
}
- lmbs[i].reserved = 1;
+ drmem_mark_lmb_reserved(lmb);
}
if (rc) {
pr_err("Memory indexed-count-add failed, removing any added LMBs\n");
- for (i = start_index; i < end_index; i++) {
- if (!lmbs[i].reserved)
+ for_each_drmem_lmb_in_range(lmb, start_lmb, end_lmb) {
+ if (!drmem_lmb_reserved(lmb))
continue;
- rc = dlpar_remove_lmb(&lmbs[i]);
+ rc = dlpar_remove_lmb(lmb);
if (rc)
pr_err("Failed to remove LMB, drc index %x\n",
- be32_to_cpu(lmbs[i].drc_index));
+ lmb->drc_index);
else
- dlpar_release_drc(lmbs[i].drc_index);
+ dlpar_release_drc(lmb->drc_index);
+
+ drmem_remove_lmb_reservation(lmb);
}
rc = -EINVAL;
} else {
- for (i = start_index; i < end_index; i++) {
- if (!lmbs[i].reserved)
+ for_each_drmem_lmb_in_range(lmb, start_lmb, end_lmb) {
+ if (!drmem_lmb_reserved(lmb))
continue;
pr_info("Memory at %llx (drc index %x) was hot-added\n",
- lmbs[i].base_addr, lmbs[i].drc_index);
- lmbs[i].reserved = 0;
+ lmb->base_addr, lmb->drc_index);
+ drmem_remove_lmb_reservation(lmb);
}
}
@@ -1012,37 +910,23 @@ static int dlpar_memory_add_by_ic(u32 lmbs_to_add, u32 drc_index,
int dlpar_memory(struct pseries_hp_errorlog *hp_elog)
{
- struct device_node *dn;
- struct property *prop;
u32 count, drc_index;
int rc;
lock_device_hotplug();
- dn = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");
- if (!dn) {
- rc = -EINVAL;
- goto dlpar_memory_out;
- }
-
- prop = dlpar_clone_drconf_property(dn);
- if (!prop) {
- rc = -EINVAL;
- goto dlpar_memory_out;
- }
-
switch (hp_elog->action) {
case PSERIES_HP_ELOG_ACTION_ADD:
if (hp_elog->id_type == PSERIES_HP_ELOG_ID_DRC_COUNT) {
count = hp_elog->_drc_u.drc_count;
- rc = dlpar_memory_add_by_count(count, prop);
+ rc = dlpar_memory_add_by_count(count);
} else if (hp_elog->id_type == PSERIES_HP_ELOG_ID_DRC_INDEX) {
drc_index = hp_elog->_drc_u.drc_index;
- rc = dlpar_memory_add_by_index(drc_index, prop);
+ rc = dlpar_memory_add_by_index(drc_index);
} else if (hp_elog->id_type == PSERIES_HP_ELOG_ID_DRC_IC) {
count = hp_elog->_drc_u.ic.count;
drc_index = hp_elog->_drc_u.ic.index;
- rc = dlpar_memory_add_by_ic(count, drc_index, prop);
+ rc = dlpar_memory_add_by_ic(count, drc_index);
} else {
rc = -EINVAL;
}
@@ -1051,14 +935,14 @@ int dlpar_memory(struct pseries_hp_errorlog *hp_elog)
case PSERIES_HP_ELOG_ACTION_REMOVE:
if (hp_elog->id_type == PSERIES_HP_ELOG_ID_DRC_COUNT) {
count = hp_elog->_drc_u.drc_count;
- rc = dlpar_memory_remove_by_count(count, prop);
+ rc = dlpar_memory_remove_by_count(count);
} else if (hp_elog->id_type == PSERIES_HP_ELOG_ID_DRC_INDEX) {
drc_index = hp_elog->_drc_u.drc_index;
- rc = dlpar_memory_remove_by_index(drc_index, prop);
+ rc = dlpar_memory_remove_by_index(drc_index);
} else if (hp_elog->id_type == PSERIES_HP_ELOG_ID_DRC_IC) {
count = hp_elog->_drc_u.ic.count;
drc_index = hp_elog->_drc_u.ic.index;
- rc = dlpar_memory_remove_by_ic(count, drc_index, prop);
+ rc = dlpar_memory_remove_by_ic(count, drc_index);
} else {
rc = -EINVAL;
}
@@ -1066,7 +950,7 @@ int dlpar_memory(struct pseries_hp_errorlog *hp_elog)
break;
case PSERIES_HP_ELOG_ACTION_READD:
drc_index = hp_elog->_drc_u.drc_index;
- rc = dlpar_memory_readd_by_index(drc_index, prop);
+ rc = dlpar_memory_readd_by_index(drc_index);
break;
default:
pr_err("Invalid action (%d) specified\n", hp_elog->action);
@@ -1074,10 +958,6 @@ int dlpar_memory(struct pseries_hp_errorlog *hp_elog)
break;
}
- dlpar_free_property(prop);
-
-dlpar_memory_out:
- of_node_put(dn);
unlock_device_hotplug();
return rc;
}
@@ -1116,7 +996,7 @@ static int pseries_add_mem_node(struct device_node *np)
static int pseries_update_drconf_memory(struct of_reconfig_data *pr)
{
- struct of_drconf_cell *new_drmem, *old_drmem;
+ struct of_drconf_cell_v1 *new_drmem, *old_drmem;
unsigned long memblock_size;
u32 entries;
__be32 *p;
@@ -1139,11 +1019,11 @@ static int pseries_update_drconf_memory(struct of_reconfig_data *pr)
* of_drconf_cell's.
*/
entries = be32_to_cpu(*p++);
- old_drmem = (struct of_drconf_cell *)p;
+ old_drmem = (struct of_drconf_cell_v1 *)p;
p = (__be32 *)pr->prop->value;
p++;
- new_drmem = (struct of_drconf_cell *)p;
+ new_drmem = (struct of_drconf_cell_v1 *)p;
for (i = 0; i < entries; i++) {
if ((be32_to_cpu(old_drmem[i].flags) & DRCONF_MEM_ASSIGNED) &&
diff --git a/arch/powerpc/platforms/pseries/hvCall_inst.c b/arch/powerpc/platforms/pseries/hvCall_inst.c
index 957ae347b0b3..89b7ce807e70 100644
--- a/arch/powerpc/platforms/pseries/hvCall_inst.c
+++ b/arch/powerpc/platforms/pseries/hvCall_inst.c
@@ -163,7 +163,7 @@ static int __init hcall_inst_init(void)
for_each_possible_cpu(cpu) {
snprintf(cpu_name_buf, CPU_NAME_BUF_SIZE, "cpu%d", cpu);
- hcall_file = debugfs_create_file(cpu_name_buf, S_IRUGO,
+ hcall_file = debugfs_create_file(cpu_name_buf, 0444,
hcall_root,
per_cpu(hcall_stats, cpu),
&hcall_inst_seq_fops);
diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c
index 408a86044133..c7c1140c13b6 100644
--- a/arch/powerpc/platforms/pseries/ibmebus.c
+++ b/arch/powerpc/platforms/pseries/ibmebus.c
@@ -298,7 +298,7 @@ out:
return rc;
return count;
}
-static BUS_ATTR(probe, S_IWUSR, NULL, ibmebus_store_probe);
+static BUS_ATTR(probe, 0200, NULL, ibmebus_store_probe);
static ssize_t ibmebus_store_remove(struct bus_type *bus,
const char *buf, size_t count)
@@ -325,7 +325,7 @@ static ssize_t ibmebus_store_remove(struct bus_type *bus,
return -ENODEV;
}
}
-static BUS_ATTR(remove, S_IWUSR, NULL, ibmebus_store_remove);
+static BUS_ATTR(remove, 0200, NULL, ibmebus_store_remove);
static struct attribute *ibmbus_bus_attrs[] = {
&bus_attr_probe.attr,
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index eaa11334fc8c..06f02960b439 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -816,15 +816,15 @@ static void remove_ddw(struct device_node *np, bool remove_prop)
ret = tce_clearrange_multi_pSeriesLP(0,
1ULL << (be32_to_cpu(dwp->window_shift) - PAGE_SHIFT), dwp);
if (ret)
- pr_warning("%pOF failed to clear tces in window.\n",
- np);
+ pr_warn("%pOF failed to clear tces in window.\n",
+ np);
else
pr_debug("%pOF successfully cleared tces in window.\n",
np);
ret = rtas_call(ddw_avail[2], 1, 1, NULL, liobn);
if (ret)
- pr_warning("%pOF: failed to remove direct window: rtas returned "
+ pr_warn("%pOF: failed to remove direct window: rtas returned "
"%d to ibm,remove-pe-dma-window(%x) %llx\n",
np, ret, ddw_avail[2], liobn);
else
@@ -836,7 +836,7 @@ delprop:
if (remove_prop)
ret = of_remove_property(np, win64);
if (ret)
- pr_warning("%pOF: failed to remove direct window property: %d\n",
+ pr_warn("%pOF: failed to remove direct window property: %d\n",
np, ret);
}
diff --git a/arch/powerpc/platforms/pseries/lparcfg.c b/arch/powerpc/platforms/pseries/lparcfg.c
index b2706c483067..c508c938dc71 100644
--- a/arch/powerpc/platforms/pseries/lparcfg.c
+++ b/arch/powerpc/platforms/pseries/lparcfg.c
@@ -370,10 +370,10 @@ static void parse_system_parameter_string(struct seq_file *m)
*/
static int lparcfg_count_active_processors(void)
{
- struct device_node *cpus_dn = NULL;
+ struct device_node *cpus_dn;
int count = 0;
- while ((cpus_dn = of_find_node_by_type(cpus_dn, "cpu"))) {
+ for_each_node_by_type(cpus_dn, "cpu") {
#ifdef LPARCFG_DEBUG
printk(KERN_ERR "cpus_dn %p\n", cpus_dn);
#endif
@@ -697,11 +697,11 @@ static const struct file_operations lparcfg_fops = {
static int __init lparcfg_init(void)
{
- umode_t mode = S_IRUSR | S_IRGRP | S_IROTH;
+ umode_t mode = 0444;
/* Allow writing if we have FW_FEATURE_SPLPAR */
if (firmware_has_feature(FW_FEATURE_SPLPAR))
- mode |= S_IWUSR;
+ mode |= 0200;
if (!proc_create("powerpc/lparcfg", mode, NULL, &lparcfg_fops)) {
printk(KERN_ERR "Failed to create powerpc/lparcfg\n");
diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c
index f7042ad492ba..0f7fb7170b03 100644
--- a/arch/powerpc/platforms/pseries/mobility.c
+++ b/arch/powerpc/platforms/pseries/mobility.c
@@ -384,7 +384,7 @@ static ssize_t migration_store(struct class *class,
#define MIGRATION_API_VERSION 1
static CLASS_ATTR_WO(migration);
-static CLASS_ATTR_STRING(api_version, S_IRUGO, __stringify(MIGRATION_API_VERSION));
+static CLASS_ATTR_STRING(api_version, 0444, __stringify(MIGRATION_API_VERSION));
static int __init mobility_sysfs_init(void)
{
diff --git a/arch/powerpc/platforms/pseries/of_helpers.c b/arch/powerpc/platforms/pseries/of_helpers.c
index 7e75101fa522..6df192f38f80 100644
--- a/arch/powerpc/platforms/pseries/of_helpers.c
+++ b/arch/powerpc/platforms/pseries/of_helpers.c
@@ -3,6 +3,7 @@
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/of.h>
+#include <asm/prom.h>
#include "of_helpers.h"
@@ -37,3 +38,62 @@ struct device_node *pseries_of_derive_parent(const char *path)
kfree(parent_path);
return parent ? parent : ERR_PTR(-EINVAL);
}
+
+
+/* Helper Routines to convert between drc_index to cpu numbers */
+
+int of_read_drc_info_cell(struct property **prop, const __be32 **curval,
+ struct of_drc_info *data)
+{
+ const char *p;
+ const __be32 *p2;
+
+ if (!data)
+ return -EINVAL;
+
+ /* Get drc-type:encode-string */
+ p = data->drc_type = (char*) (*curval);
+ p = of_prop_next_string(*prop, p);
+ if (!p)
+ return -EINVAL;
+
+ /* Get drc-name-prefix:encode-string */
+ data->drc_name_prefix = (char *)p;
+ p = of_prop_next_string(*prop, p);
+ if (!p)
+ return -EINVAL;
+
+ /* Get drc-index-start:encode-int */
+ p2 = (const __be32 *)p;
+ p2 = of_prop_next_u32(*prop, p2, &data->drc_index_start);
+ if (!p2)
+ return -EINVAL;
+
+ /* Get drc-name-suffix-start:encode-int */
+ p2 = of_prop_next_u32(*prop, p2, &data->drc_name_suffix_start);
+ if (!p2)
+ return -EINVAL;
+
+ /* Get number-sequential-elements:encode-int */
+ p2 = of_prop_next_u32(*prop, p2, &data->num_sequential_elems);
+ if (!p2)
+ return -EINVAL;
+
+ /* Get sequential-increment:encode-int */
+ p2 = of_prop_next_u32(*prop, p2, &data->sequential_inc);
+ if (!p2)
+ return -EINVAL;
+
+ /* Get drc-power-domain:encode-int */
+ p2 = of_prop_next_u32(*prop, p2, &data->drc_power_domain);
+ if (!p2)
+ return -EINVAL;
+
+ /* Should now know end of current entry */
+ (*curval) = (void *)p2;
+ data->last_drc_index = data->drc_index_start +
+ ((data->num_sequential_elems - 1) * data->sequential_inc);
+
+ return 0;
+}
+EXPORT_SYMBOL(of_read_drc_info_cell);
diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c
index 09eba5a9929a..eab96637d6cf 100644
--- a/arch/powerpc/platforms/pseries/pci.c
+++ b/arch/powerpc/platforms/pseries/pci.c
@@ -3,17 +3,17 @@
* Copyright (C) 2003 Anton Blanchard <anton@au.ibm.com>, IBM
*
* pSeries specific routines for PCI.
- *
+ *
* 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. 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
@@ -54,10 +54,174 @@ void pcibios_name_device(struct pci_dev *dev)
}
}
}
-}
+}
DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pcibios_name_device);
#endif
+#ifdef CONFIG_PCI_IOV
+#define MAX_VFS_FOR_MAP_PE 256
+struct pe_map_bar_entry {
+ __be64 bar; /* Input: Virtual Function BAR */
+ __be16 rid; /* Input: Virtual Function Router ID */
+ __be16 pe_num; /* Output: Virtual Function PE Number */
+ __be32 reserved; /* Reserved Space */
+};
+
+int pseries_send_map_pe(struct pci_dev *pdev,
+ u16 num_vfs,
+ struct pe_map_bar_entry *vf_pe_array)
+{
+ struct pci_dn *pdn;
+ int rc;
+ unsigned long buid, addr;
+ int ibm_map_pes = rtas_token("ibm,open-sriov-map-pe-number");
+
+ if (ibm_map_pes == RTAS_UNKNOWN_SERVICE)
+ return -EINVAL;
+
+ pdn = pci_get_pdn(pdev);
+ addr = rtas_config_addr(pdn->busno, pdn->devfn, 0);
+ buid = pdn->phb->buid;
+ spin_lock(&rtas_data_buf_lock);
+ memcpy(rtas_data_buf, vf_pe_array,
+ RTAS_DATA_BUF_SIZE);
+ rc = rtas_call(ibm_map_pes, 5, 1, NULL, addr,
+ BUID_HI(buid), BUID_LO(buid),
+ rtas_data_buf,
+ num_vfs * sizeof(struct pe_map_bar_entry));
+ memcpy(vf_pe_array, rtas_data_buf, RTAS_DATA_BUF_SIZE);
+ spin_unlock(&rtas_data_buf_lock);
+
+ if (rc)
+ dev_err(&pdev->dev,
+ "%s: Failed to associate pes PE#%lx, rc=%x\n",
+ __func__, addr, rc);
+
+ return rc;
+}
+
+void pseries_set_pe_num(struct pci_dev *pdev, u16 vf_index, __be16 pe_num)
+{
+ struct pci_dn *pdn;
+
+ pdn = pci_get_pdn(pdev);
+ pdn->pe_num_map[vf_index] = be16_to_cpu(pe_num);
+ dev_dbg(&pdev->dev, "VF %04x:%02x:%02x.%x associated with PE#%x\n",
+ pci_domain_nr(pdev->bus),
+ pdev->bus->number,
+ PCI_SLOT(pci_iov_virtfn_devfn(pdev, vf_index)),
+ PCI_FUNC(pci_iov_virtfn_devfn(pdev, vf_index)),
+ pdn->pe_num_map[vf_index]);
+}
+
+int pseries_associate_pes(struct pci_dev *pdev, u16 num_vfs)
+{
+ struct pci_dn *pdn;
+ int i, rc, vf_index;
+ struct pe_map_bar_entry *vf_pe_array;
+ struct resource *res;
+ u64 size;
+
+ vf_pe_array = kzalloc(RTAS_DATA_BUF_SIZE, GFP_KERNEL);
+ if (!vf_pe_array)
+ return -ENOMEM;
+
+ pdn = pci_get_pdn(pdev);
+ /* create firmware structure to associate pes */
+ for (vf_index = 0; vf_index < num_vfs; vf_index++) {
+ pdn->pe_num_map[vf_index] = IODA_INVALID_PE;
+ for (i = 0; i < PCI_SRIOV_NUM_BARS; i++) {
+ res = &pdev->resource[i + PCI_IOV_RESOURCES];
+ if (!res->parent)
+ continue;
+ size = pcibios_iov_resource_alignment(pdev, i +
+ PCI_IOV_RESOURCES);
+ vf_pe_array[vf_index].bar =
+ cpu_to_be64(res->start + size * vf_index);
+ vf_pe_array[vf_index].rid =
+ cpu_to_be16((pci_iov_virtfn_bus(pdev, vf_index)
+ << 8) | pci_iov_virtfn_devfn(pdev,
+ vf_index));
+ vf_pe_array[vf_index].pe_num =
+ cpu_to_be16(IODA_INVALID_PE);
+ }
+ }
+
+ rc = pseries_send_map_pe(pdev, num_vfs, vf_pe_array);
+ /* Only zero is success */
+ if (!rc)
+ for (vf_index = 0; vf_index < num_vfs; vf_index++)
+ pseries_set_pe_num(pdev, vf_index,
+ vf_pe_array[vf_index].pe_num);
+
+ kfree(vf_pe_array);
+ return rc;
+}
+
+int pseries_pci_sriov_enable(struct pci_dev *pdev, u16 num_vfs)
+{
+ struct pci_dn *pdn;
+ int rc;
+ const int *max_vfs;
+ int max_config_vfs;
+ struct device_node *dn = pci_device_to_OF_node(pdev);
+
+ max_vfs = of_get_property(dn, "ibm,number-of-configurable-vfs", NULL);
+
+ if (!max_vfs)
+ return -EINVAL;
+
+ /* First integer stores max config */
+ max_config_vfs = of_read_number(&max_vfs[0], 1);
+ if (max_config_vfs < num_vfs && num_vfs > MAX_VFS_FOR_MAP_PE) {
+ dev_err(&pdev->dev,
+ "Num VFs %x > %x Configurable VFs\n",
+ num_vfs, (num_vfs > MAX_VFS_FOR_MAP_PE) ?
+ MAX_VFS_FOR_MAP_PE : max_config_vfs);
+ return -EINVAL;
+ }
+
+ pdn = pci_get_pdn(pdev);
+ pdn->pe_num_map = kmalloc_array(num_vfs,
+ sizeof(*pdn->pe_num_map),
+ GFP_KERNEL);
+ if (!pdn->pe_num_map)
+ return -ENOMEM;
+
+ rc = pseries_associate_pes(pdev, num_vfs);
+
+ /* Anything other than zero is failure */
+ if (rc) {
+ dev_err(&pdev->dev, "Failure to enable sriov: %x\n", rc);
+ kfree(pdn->pe_num_map);
+ } else {
+ pci_vf_drivers_autoprobe(pdev, false);
+ }
+
+ return rc;
+}
+
+int pseries_pcibios_sriov_enable(struct pci_dev *pdev, u16 num_vfs)
+{
+ /* Allocate PCI data */
+ add_dev_pci_data(pdev);
+ return pseries_pci_sriov_enable(pdev, num_vfs);
+}
+
+int pseries_pcibios_sriov_disable(struct pci_dev *pdev)
+{
+ struct pci_dn *pdn;
+
+ pdn = pci_get_pdn(pdev);
+ /* Releasing pe_num_map */
+ kfree(pdn->pe_num_map);
+ /* Release PCI data */
+ remove_dev_pci_data(pdev);
+ pci_vf_drivers_autoprobe(pdev, true);
+ return 0;
+}
+#endif
+
static void __init pSeries_request_regions(void)
{
if (!isa_io_base)
@@ -76,6 +240,11 @@ void __init pSeries_final_fixup(void)
pSeries_request_regions();
eeh_addr_cache_build();
+
+#ifdef CONFIG_PCI_IOV
+ ppc_md.pcibios_sriov_enable = pseries_pcibios_sriov_enable;
+ ppc_md.pcibios_sriov_disable = pseries_pcibios_sriov_disable;
+#endif
}
/*
diff --git a/arch/powerpc/platforms/pseries/pseries_energy.c b/arch/powerpc/platforms/pseries/pseries_energy.c
index 35c891aabef0..6ed22127391b 100644
--- a/arch/powerpc/platforms/pseries/pseries_energy.c
+++ b/arch/powerpc/platforms/pseries/pseries_energy.c
@@ -22,6 +22,7 @@
#include <asm/page.h>
#include <asm/hvcall.h>
#include <asm/firmware.h>
+#include <asm/prom.h>
#define MODULE_VERS "1.0"
@@ -38,26 +39,58 @@ static int sysfs_entries;
static u32 cpu_to_drc_index(int cpu)
{
struct device_node *dn = NULL;
- const int *indexes;
- int i;
+ int thread_index;
int rc = 1;
u32 ret = 0;
dn = of_find_node_by_path("/cpus");
if (dn == NULL)
goto err;
- indexes = of_get_property(dn, "ibm,drc-indexes", NULL);
- if (indexes == NULL)
- goto err_of_node_put;
+
/* Convert logical cpu number to core number */
- i = cpu_core_index_of_thread(cpu);
- /*
- * The first element indexes[0] is the number of drc_indexes
- * returned in the list. Hence i+1 will get the drc_index
- * corresponding to core number i.
- */
- WARN_ON(i > indexes[0]);
- ret = indexes[i + 1];
+ thread_index = cpu_core_index_of_thread(cpu);
+
+ if (firmware_has_feature(FW_FEATURE_DRC_INFO)) {
+ struct property *info = NULL;
+ struct of_drc_info drc;
+ int j;
+ u32 num_set_entries;
+ const __be32 *value;
+
+ info = of_find_property(dn, "ibm,drc-info", NULL);
+ if (info == NULL)
+ goto err_of_node_put;
+
+ value = of_prop_next_u32(info, NULL, &num_set_entries);
+ if (!value)
+ goto err_of_node_put;
+
+ for (j = 0; j < num_set_entries; j++) {
+
+ of_read_drc_info_cell(&info, &value, &drc);
+ if (strncmp(drc.drc_type, "CPU", 3))
+ goto err;
+
+ if (thread_index < drc.last_drc_index)
+ break;
+ }
+
+ ret = drc.drc_index_start + (thread_index * drc.sequential_inc);
+ } else {
+ const __be32 *indexes;
+
+ indexes = of_get_property(dn, "ibm,drc-indexes", NULL);
+ if (indexes == NULL)
+ goto err_of_node_put;
+
+ /*
+ * The first element indexes[0] is the number of drc_indexes
+ * returned in the list. Hence thread_index+1 will get the
+ * drc_index corresponding to core number thread_index.
+ */
+ ret = indexes[thread_index + 1];
+ }
+
rc = 0;
err_of_node_put:
@@ -72,34 +105,71 @@ static int drc_index_to_cpu(u32 drc_index)
{
struct device_node *dn = NULL;
const int *indexes;
- int i, cpu = 0;
+ int thread_index = 0, cpu = 0;
int rc = 1;
dn = of_find_node_by_path("/cpus");
if (dn == NULL)
goto err;
- indexes = of_get_property(dn, "ibm,drc-indexes", NULL);
- if (indexes == NULL)
- goto err_of_node_put;
- /*
- * First element in the array is the number of drc_indexes
- * returned. Search through the list to find the matching
- * drc_index and get the core number
- */
- for (i = 0; i < indexes[0]; i++) {
- if (indexes[i + 1] == drc_index)
+
+ if (firmware_has_feature(FW_FEATURE_DRC_INFO)) {
+ struct property *info = NULL;
+ struct of_drc_info drc;
+ int j;
+ u32 num_set_entries;
+ const __be32 *value;
+
+ info = of_find_property(dn, "ibm,drc-info", NULL);
+ if (info == NULL)
+ goto err_of_node_put;
+
+ value = of_prop_next_u32(info, NULL, &num_set_entries);
+ if (!value)
+ goto err_of_node_put;
+
+ for (j = 0; j < num_set_entries; j++) {
+
+ of_read_drc_info_cell(&info, &value, &drc);
+ if (strncmp(drc.drc_type, "CPU", 3))
+ goto err;
+
+ if (drc_index > drc.last_drc_index) {
+ cpu += drc.num_sequential_elems;
+ continue;
+ }
+ cpu += ((drc_index - drc.drc_index_start) /
+ drc.sequential_inc);
+
+ thread_index = cpu_first_thread_of_core(cpu);
+ rc = 0;
break;
+ }
+ } else {
+ unsigned long int i;
+
+ indexes = of_get_property(dn, "ibm,drc-indexes", NULL);
+ if (indexes == NULL)
+ goto err_of_node_put;
+ /*
+ * First element in the array is the number of drc_indexes
+ * returned. Search through the list to find the matching
+ * drc_index and get the core number
+ */
+ for (i = 0; i < indexes[0]; i++) {
+ if (indexes[i + 1] == drc_index)
+ break;
+ }
+ /* Convert core number to logical cpu number */
+ thread_index = cpu_first_thread_of_core(i);
+ rc = 0;
}
- /* Convert core number to logical cpu number */
- cpu = cpu_first_thread_of_core(i);
- rc = 0;
err_of_node_put:
of_node_put(dn);
err:
if (rc)
printk(KERN_WARNING "drc_index_to_cpu(%d) failed", drc_index);
- return cpu;
+ return thread_index;
}
/*
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index f24d8159c9e1..0e0208117e77 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -405,7 +405,7 @@ static int proc_ppc64_create_ofdt(void)
{
struct proc_dir_entry *ent;
- ent = proc_create("powerpc/ofdt", S_IWUSR, NULL, &ofdt_fops);
+ ent = proc_create("powerpc/ofdt", 0200, NULL, &ofdt_fops);
if (ent)
proc_set_size(ent, 0);
diff --git a/arch/powerpc/platforms/pseries/scanlog.c b/arch/powerpc/platforms/pseries/scanlog.c
index c47585a78b69..054ce7a16fc3 100644
--- a/arch/powerpc/platforms/pseries/scanlog.c
+++ b/arch/powerpc/platforms/pseries/scanlog.c
@@ -179,7 +179,7 @@ static int __init scanlog_init(void)
if (!scanlog_buffer)
goto err;
- ent = proc_create("powerpc/rtas/scan-log-dump", S_IRUSR, NULL,
+ ent = proc_create("powerpc/rtas/scan-log-dump", 0400, NULL,
&scanlog_fops);
if (!ent)
goto err;
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index ae4f596273b5..372d7ada1a0c 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -371,8 +371,8 @@ void pseries_disable_reloc_on_exc(void)
mdelay(get_longbusy_msecs(rc));
}
if (rc != H_SUCCESS)
- pr_warning("Warning: Failed to disable relocation on "
- "exceptions: %ld\n", rc);
+ pr_warn("Warning: Failed to disable relocation on exceptions: %ld\n",
+ rc);
}
EXPORT_SYMBOL(pseries_disable_reloc_on_exc);
@@ -492,6 +492,162 @@ static void pseries_setup_rfi_flush(void)
setup_rfi_flush(types, enable);
}
+#ifdef CONFIG_PCI_IOV
+enum rtas_iov_fw_value_map {
+ NUM_RES_PROPERTY = 0, /* Number of Resources */
+ LOW_INT = 1, /* Lowest 32 bits of Address */
+ START_OF_ENTRIES = 2, /* Always start of entry */
+ APERTURE_PROPERTY = 2, /* Start of entry+ to Aperture Size */
+ WDW_SIZE_PROPERTY = 4, /* Start of entry+ to Window Size */
+ NEXT_ENTRY = 7 /* Go to next entry on array */
+};
+
+enum get_iov_fw_value_index {
+ BAR_ADDRS = 1, /* Get Bar Address */
+ APERTURE_SIZE = 2, /* Get Aperture Size */
+ WDW_SIZE = 3 /* Get Window Size */
+};
+
+resource_size_t pseries_get_iov_fw_value(struct pci_dev *dev, int resno,
+ enum get_iov_fw_value_index value)
+{
+ const int *indexes;
+ struct device_node *dn = pci_device_to_OF_node(dev);
+ int i, num_res, ret = 0;
+
+ indexes = of_get_property(dn, "ibm,open-sriov-vf-bar-info", NULL);
+ if (!indexes)
+ return 0;
+
+ /*
+ * First element in the array is the number of Bars
+ * returned. Search through the list to find the matching
+ * bar
+ */
+ num_res = of_read_number(&indexes[NUM_RES_PROPERTY], 1);
+ if (resno >= num_res)
+ return 0; /* or an errror */
+
+ i = START_OF_ENTRIES + NEXT_ENTRY * resno;
+ switch (value) {
+ case BAR_ADDRS:
+ ret = of_read_number(&indexes[i], 2);
+ break;
+ case APERTURE_SIZE:
+ ret = of_read_number(&indexes[i + APERTURE_PROPERTY], 2);
+ break;
+ case WDW_SIZE:
+ ret = of_read_number(&indexes[i + WDW_SIZE_PROPERTY], 2);
+ break;
+ }
+
+ return ret;
+}
+
+void of_pci_set_vf_bar_size(struct pci_dev *dev, const int *indexes)
+{
+ struct resource *res;
+ resource_size_t base, size;
+ int i, r, num_res;
+
+ num_res = of_read_number(&indexes[NUM_RES_PROPERTY], 1);
+ num_res = min_t(int, num_res, PCI_SRIOV_NUM_BARS);
+ for (i = START_OF_ENTRIES, r = 0; r < num_res && r < PCI_SRIOV_NUM_BARS;
+ i += NEXT_ENTRY, r++) {
+ res = &dev->resource[r + PCI_IOV_RESOURCES];
+ base = of_read_number(&indexes[i], 2);
+ size = of_read_number(&indexes[i + APERTURE_PROPERTY], 2);
+ res->flags = pci_parse_of_flags(of_read_number
+ (&indexes[i + LOW_INT], 1), 0);
+ res->flags |= (IORESOURCE_MEM_64 | IORESOURCE_PCI_FIXED);
+ res->name = pci_name(dev);
+ res->start = base;
+ res->end = base + size - 1;
+ }
+}
+
+void of_pci_parse_iov_addrs(struct pci_dev *dev, const int *indexes)
+{
+ struct resource *res, *root, *conflict;
+ resource_size_t base, size;
+ int i, r, num_res;
+
+ /*
+ * First element in the array is the number of Bars
+ * returned. Search through the list to find the matching
+ * bars assign them from firmware into resources structure.
+ */
+ num_res = of_read_number(&indexes[NUM_RES_PROPERTY], 1);
+ for (i = START_OF_ENTRIES, r = 0; r < num_res && r < PCI_SRIOV_NUM_BARS;
+ i += NEXT_ENTRY, r++) {
+ res = &dev->resource[r + PCI_IOV_RESOURCES];
+ base = of_read_number(&indexes[i], 2);
+ size = of_read_number(&indexes[i + WDW_SIZE_PROPERTY], 2);
+ res->name = pci_name(dev);
+ res->start = base;
+ res->end = base + size - 1;
+ root = &iomem_resource;
+ dev_dbg(&dev->dev,
+ "pSeries IOV BAR %d: trying firmware assignment %pR\n",
+ r + PCI_IOV_RESOURCES, res);
+ conflict = request_resource_conflict(root, res);
+ if (conflict) {
+ dev_info(&dev->dev,
+ "BAR %d: %pR conflicts with %s %pR\n",
+ r + PCI_IOV_RESOURCES, res,
+ conflict->name, conflict);
+ res->flags |= IORESOURCE_UNSET;
+ }
+ }
+}
+
+static void pseries_pci_fixup_resources(struct pci_dev *pdev)
+{
+ const int *indexes;
+ struct device_node *dn = pci_device_to_OF_node(pdev);
+
+ /*Firmware must support open sriov otherwise dont configure*/
+ indexes = of_get_property(dn, "ibm,open-sriov-vf-bar-info", NULL);
+ if (!indexes)
+ return;
+ /* Assign the addresses from device tree*/
+ of_pci_set_vf_bar_size(pdev, indexes);
+}
+
+static void pseries_pci_fixup_iov_resources(struct pci_dev *pdev)
+{
+ const int *indexes;
+ struct device_node *dn = pci_device_to_OF_node(pdev);
+
+ if (!pdev->is_physfn || pdev->is_added)
+ return;
+ /*Firmware must support open sriov otherwise dont configure*/
+ indexes = of_get_property(dn, "ibm,open-sriov-vf-bar-info", NULL);
+ if (!indexes)
+ return;
+ /* Assign the addresses from device tree*/
+ of_pci_parse_iov_addrs(pdev, indexes);
+}
+
+static resource_size_t pseries_pci_iov_resource_alignment(struct pci_dev *pdev,
+ int resno)
+{
+ const __be32 *reg;
+ struct device_node *dn = pci_device_to_OF_node(pdev);
+
+ /*Firmware must support open sriov otherwise report regular alignment*/
+ reg = of_get_property(dn, "ibm,is-open-sriov-pf", NULL);
+ if (!reg)
+ return pci_iov_resource_size(pdev, resno);
+
+ if (!pdev->is_physfn)
+ return 0;
+ return pseries_get_iov_fw_value(pdev,
+ resno - PCI_IOV_RESOURCES,
+ APERTURE_SIZE);
+}
+#endif
+
static void __init pSeries_setup_arch(void)
{
set_arch_panic_timeout(10, ARCH_PANIC_TIMEOUT);
@@ -525,6 +681,14 @@ static void __init pSeries_setup_arch(void)
vpa_init(boot_cpuid);
ppc_md.power_save = pseries_lpar_idle;
ppc_md.enable_pmcs = pseries_lpar_enable_pmcs;
+#ifdef CONFIG_PCI_IOV
+ ppc_md.pcibios_fixup_resources =
+ pseries_pci_fixup_resources;
+ ppc_md.pcibios_fixup_sriov =
+ pseries_pci_fixup_iov_resources;
+ ppc_md.pcibios_iov_resource_alignment =
+ pseries_pci_iov_resource_alignment;
+#endif
} else {
/* No special idle routine */
ppc_md.enable_pmcs = power4_enable_pmcs;
@@ -533,6 +697,12 @@ static void __init pSeries_setup_arch(void)
ppc_md.pcibios_root_bridge_prepare = pseries_root_bridge_prepare;
}
+static void pseries_panic(char *str)
+{
+ panic_flush_kmsg_end();
+ rtas_os_term(str);
+}
+
static int __init pSeries_init_panel(void)
{
/* Manually leave the kernel version on the panel. */
@@ -761,7 +931,7 @@ define_machine(pseries) {
.pcibios_fixup = pSeries_final_fixup,
.restart = rtas_restart,
.halt = rtas_halt,
- .panic = rtas_os_term,
+ .panic = pseries_panic,
.get_boot_time = rtas_get_boot_time,
.get_rtc_time = rtas_get_rtc_time,
.set_rtc_time = rtas_set_rtc_time,
diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c
index 89726f07d249..52a021e1f86b 100644
--- a/arch/powerpc/platforms/pseries/suspend.c
+++ b/arch/powerpc/platforms/pseries/suspend.c
@@ -214,8 +214,7 @@ static ssize_t show_hibernate(struct device *dev,
return sprintf(buf, "%d\n", KERN_DT_UPDATE);
}
-static DEVICE_ATTR(hibernate, S_IWUSR | S_IRUGO,
- show_hibernate, store_hibernate);
+static DEVICE_ATTR(hibernate, 0644, show_hibernate, store_hibernate);
static struct bus_type suspend_subsys = {
.name = "power",
generated by cgit (git 2.34.1) at 2024-04-28 12:42:43 +0000