17 files changed, 46 insertions, 80 deletions

diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c
index af3a5d37a149..db3370d1673c 100644
--- a/arch/powerpc/platforms/powernv/eeh-powernv.c
+++ b/arch/powerpc/platforms/powernv/eeh-powernv.c
@@ -99,7 +99,6 @@ static ssize_t pnv_eeh_ei_write(struct file *filp,
 
 static const struct file_operations pnv_eeh_ei_fops = {
 	.open	= simple_open,
-	.llseek	= no_llseek,
 	.write	= pnv_eeh_ei_write,
 };
 
@@ -860,7 +859,7 @@ static int pnv_eeh_bridge_reset(struct pci_dev *pdev, int option)
 	int64_t rc;
 
 	/* Hot reset to the bus if firmware cannot handle */
-	if (!dn || !of_get_property(dn, "ibm,reset-by-firmware", NULL))
+	if (!dn || !of_property_present(dn, "ibm,reset-by-firmware"))
 		return __pnv_eeh_bridge_reset(pdev, option);
 
 	pr_debug("%s: FW reset PCI bus %04x:%02x with option %d\n",
diff --git a/arch/powerpc/platforms/powernv/idle.c b/arch/powerpc/platforms/powernv/idle.c
index ad41dffe4d92..d98b933e4984 100644
--- a/arch/powerpc/platforms/powernv/idle.c
+++ b/arch/powerpc/platforms/powernv/idle.c
@@ -18,7 +18,7 @@
 #include <asm/opal.h>
 #include <asm/cputhreads.h>
 #include <asm/cpuidle.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
 #include <asm/smp.h>
 #include <asm/runlatch.h>
 #include <asm/dbell.h>
diff --git a/arch/powerpc/platforms/powernv/memtrace.c b/arch/powerpc/platforms/powernv/memtrace.c
index 877720c64515..4ac9808e55a4 100644
--- a/arch/powerpc/platforms/powernv/memtrace.c
+++ b/arch/powerpc/platforms/powernv/memtrace.c
@@ -88,26 +88,6 @@ static void flush_dcache_range_chunked(unsigned long start, unsigned long stop,
 	}
 }
 
-static void memtrace_clear_range(unsigned long start_pfn,
-				 unsigned long nr_pages)
-{
-	unsigned long pfn;
-
-	/* As HIGHMEM does not apply, use clear_page() directly. */
-	for (pfn = start_pfn; pfn < start_pfn + nr_pages; pfn++) {
-		if (IS_ALIGNED(pfn, PAGES_PER_SECTION))
-			cond_resched();
-		clear_page(__va(PFN_PHYS(pfn)));
-	}
-	/*
-	 * Before we go ahead and use this range as cache inhibited range
-	 * flush the cache.
-	 */
-	flush_dcache_range_chunked((unsigned long)pfn_to_kaddr(start_pfn),
-				   (unsigned long)pfn_to_kaddr(start_pfn + nr_pages),
-				   FLUSH_CHUNK_SIZE);
-}
-
 static u64 memtrace_alloc_node(u32 nid, u64 size)
 {
 	const unsigned long nr_pages = PHYS_PFN(size);
@@ -119,17 +99,18 @@ static u64 memtrace_alloc_node(u32 nid, u64 size)
 	 * by alloc_contig_pages().
 	 */
 	page = alloc_contig_pages(nr_pages, GFP_KERNEL | __GFP_THISNODE |
-				  __GFP_NOWARN, nid, NULL);
+				  __GFP_NOWARN | __GFP_ZERO, nid, NULL);
 	if (!page)
 		return 0;
 	start_pfn = page_to_pfn(page);
 
 	/*
-	 * Clear the range while we still have a linear mapping.
-	 *
-	 * TODO: use __GFP_ZERO with alloc_contig_pages() once supported.
+	 * Before we go ahead and use this range as cache inhibited range
+	 * flush the cache.
 	 */
-	memtrace_clear_range(start_pfn, nr_pages);
+	flush_dcache_range_chunked((unsigned long)pfn_to_kaddr(start_pfn),
+				   (unsigned long)pfn_to_kaddr(start_pfn + nr_pages),
+				   FLUSH_CHUNK_SIZE);
 
 	/*
 	 * Set pages PageOffline(), to indicate that nobody (e.g., hibernation,
diff --git a/arch/powerpc/platforms/powernv/opal-core.c b/arch/powerpc/platforms/powernv/opal-core.c
index bb7657115f1d..c9a9b759cc92 100644
--- a/arch/powerpc/platforms/powernv/opal-core.c
+++ b/arch/powerpc/platforms/powernv/opal-core.c
@@ -16,7 +16,7 @@
 #include <linux/kobject.h>
 #include <linux/sysfs.h>
 #include <linux/slab.h>
-#include <linux/crash_core.h>
+#include <linux/vmcore_info.h>
 #include <linux/of.h>
 
 #include <asm/page.h>
diff --git a/arch/powerpc/platforms/powernv/opal-dump.c b/arch/powerpc/platforms/powernv/opal-dump.c
index 16c5860f1372..608e4b68c5ea 100644
--- a/arch/powerpc/platforms/powernv/opal-dump.c
+++ b/arch/powerpc/platforms/powernv/opal-dump.c
@@ -210,7 +210,7 @@ static struct attribute *dump_default_attrs[] = {
 };
 ATTRIBUTE_GROUPS(dump_default);
 
-static struct kobj_type dump_ktype = {
+static const struct kobj_type dump_ktype = {
 	.sysfs_ops = &dump_sysfs_ops,
 	.release = &dump_release,
 	.default_groups = dump_default_groups,
diff --git a/arch/powerpc/platforms/powernv/opal-elog.c b/arch/powerpc/platforms/powernv/opal-elog.c
index 554fdd7f88b8..5db1e733143b 100644
--- a/arch/powerpc/platforms/powernv/opal-elog.c
+++ b/arch/powerpc/platforms/powernv/opal-elog.c
@@ -146,7 +146,7 @@ static struct attribute *elog_default_attrs[] = {
 };
 ATTRIBUTE_GROUPS(elog_default);
 
-static struct kobj_type elog_ktype = {
+static const struct kobj_type elog_ktype = {
 	.sysfs_ops = &elog_sysfs_ops,
 	.release = &elog_release,
 	.default_groups = elog_default_groups,
diff --git a/arch/powerpc/platforms/powernv/opal-fadump.c b/arch/powerpc/platforms/powernv/opal-fadump.c
index 964f464b1b0e..c9c1dfb35464 100644
--- a/arch/powerpc/platforms/powernv/opal-fadump.c
+++ b/arch/powerpc/platforms/powernv/opal-fadump.c
@@ -513,8 +513,8 @@ out:
 	final_note(note_buf);
 
 	pr_debug("Updating elfcore header (%llx) with cpu notes\n",
-		 fdh->elfcorehdr_addr);
-	fadump_update_elfcore_header(__va(fdh->elfcorehdr_addr));
+		 fadump_conf->elfcorehdr_addr);
+	fadump_update_elfcore_header((char *)fadump_conf->elfcorehdr_addr);
 	return 0;
 }
 
@@ -526,12 +526,7 @@ static int __init opal_fadump_process(struct fw_dump *fadump_conf)
 	if (!opal_fdm_active || !fadump_conf->fadumphdr_addr)
 		return rc;
 
-	/* Validate the fadump crash info header */
 	fdh = __va(fadump_conf->fadumphdr_addr);
-	if (fdh->magic_number != FADUMP_CRASH_INFO_MAGIC) {
-		pr_err("Crash info header is not valid.\n");
-		return rc;
-	}
 
 #ifdef CONFIG_OPAL_CORE
 	/*
@@ -545,18 +540,7 @@ static int __init opal_fadump_process(struct fw_dump *fadump_conf)
 		kernel_initiated = true;
 #endif
 
-	rc = opal_fadump_build_cpu_notes(fadump_conf, fdh);
-	if (rc)
-		return rc;
-
-	/*
-	 * We are done validating dump info and elfcore header is now ready
-	 * to be exported. set elfcorehdr_addr so that vmcore module will
-	 * export the elfcore header through '/proc/vmcore'.
-	 */
-	elfcorehdr_addr = fdh->elfcorehdr_addr;
-
-	return rc;
+	return opal_fadump_build_cpu_notes(fadump_conf, fdh);
 }
 
 static void opal_fadump_region_show(struct fw_dump *fadump_conf,
@@ -615,6 +599,12 @@ static void opal_fadump_trigger(struct fadump_crash_info_header *fdh,
 		pr_emerg("No backend support for MPIPL!\n");
 }
 
+/* FADUMP_MAX_MEM_REGS or lower */
+static int opal_fadump_max_boot_mem_rgns(void)
+{
+	return FADUMP_MAX_MEM_REGS;
+}
+
 static struct fadump_ops opal_fadump_ops = {
 	.fadump_init_mem_struct		= opal_fadump_init_mem_struct,
 	.fadump_get_metadata_size	= opal_fadump_get_metadata_size,
@@ -627,6 +617,7 @@ static struct fadump_ops opal_fadump_ops = {
 	.fadump_process			= opal_fadump_process,
 	.fadump_region_show		= opal_fadump_region_show,
 	.fadump_trigger			= opal_fadump_trigger,
+	.fadump_max_boot_mem_rgns	= opal_fadump_max_boot_mem_rgns,
 };
 
 void __init opal_fadump_dt_scan(struct fw_dump *fadump_conf, u64 node)
@@ -674,8 +665,10 @@ void __init opal_fadump_dt_scan(struct fw_dump *fadump_conf, u64 node)
 		}
 	}
 
-	fadump_conf->ops		= &opal_fadump_ops;
-	fadump_conf->fadump_supported	= 1;
+	fadump_conf->ops			= &opal_fadump_ops;
+	fadump_conf->fadump_supported		= 1;
+	/* TODO: Add support to pass additional parameters */
+	fadump_conf->param_area_supported	= 0;
 
 	/*
 	 * Firmware supports 32-bit field for size. Align it to PAGE_SIZE
diff --git a/arch/powerpc/platforms/powernv/opal-irqchip.c b/arch/powerpc/platforms/powernv/opal-irqchip.c
index 56a1f7ce78d2..d92759c21fae 100644
--- a/arch/powerpc/platforms/powernv/opal-irqchip.c
+++ b/arch/powerpc/platforms/powernv/opal-irqchip.c
@@ -282,6 +282,7 @@ int __init opal_event_init(void)
 				 name, NULL);
 		if (rc) {
 			pr_warn("Error %d requesting OPAL irq %d\n", rc, (int)r->start);
+			kfree(name);
 			continue;
 		}
 	}
diff --git a/arch/powerpc/platforms/powernv/opal-kmsg.c b/arch/powerpc/platforms/powernv/opal-kmsg.c
index 6c3bc4b4da98..bb4218fa796e 100644
--- a/arch/powerpc/platforms/powernv/opal-kmsg.c
+++ b/arch/powerpc/platforms/powernv/opal-kmsg.c
@@ -20,13 +20,13 @@
  * message, it just ensures that OPAL completely flushes the console buffer.
  */
 static void kmsg_dump_opal_console_flush(struct kmsg_dumper *dumper,
-				     enum kmsg_dump_reason reason)
+				     struct kmsg_dump_detail *detail)
 {
 	/*
 	 * Outside of a panic context the pollers will continue to run,
 	 * so we don't need to do any special flushing.
 	 */
-	if (reason != KMSG_DUMP_PANIC)
+	if (detail->reason != KMSG_DUMP_PANIC)
 		return;
 
 	opal_flush_console(0);
diff --git a/arch/powerpc/platforms/powernv/opal-lpc.c b/arch/powerpc/platforms/powernv/opal-lpc.c
index a16f07cdab26..8a7f39e106bd 100644
--- a/arch/powerpc/platforms/powernv/opal-lpc.c
+++ b/arch/powerpc/platforms/powernv/opal-lpc.c
@@ -393,7 +393,7 @@ void __init opal_lpc_init(void)
 	for_each_compatible_node(np, NULL, "ibm,power8-lpc") {
 		if (!of_device_is_available(np))
 			continue;
-		if (!of_get_property(np, "primary", NULL))
+		if (!of_property_present(np, "primary"))
 			continue;
 		opal_lpc_chip_id = of_get_ibm_chip_id(np);
 		of_node_put(np);
diff --git a/arch/powerpc/platforms/powernv/opal-prd.c b/arch/powerpc/platforms/powernv/opal-prd.c
index b66b06efcef1..dc246ed4b7b4 100644
--- a/arch/powerpc/platforms/powernv/opal-prd.c
+++ b/arch/powerpc/platforms/powernv/opal-prd.c
@@ -425,12 +425,11 @@ static int opal_prd_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int opal_prd_remove(struct platform_device *pdev)
+static void opal_prd_remove(struct platform_device *pdev)
 {
 	misc_deregister(&opal_prd_dev);
 	opal_message_notifier_unregister(OPAL_MSG_PRD, &opal_prd_event_nb);
 	opal_message_notifier_unregister(OPAL_MSG_PRD2, &opal_prd_event_nb2);
-	return 0;
 }
 
 static const struct of_device_id opal_prd_match[] = {
@@ -444,7 +443,7 @@ static struct platform_driver opal_prd_driver = {
 		.of_match_table	= opal_prd_match,
 	},
 	.probe	= opal_prd_probe,
-	.remove	= opal_prd_remove,
+	.remove = opal_prd_remove,
 };
 
 module_platform_driver(opal_prd_driver);
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 45dd77e3ccf6..9ec265fcaff4 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -180,10 +180,7 @@ int __init early_init_dt_scan_recoverable_ranges(unsigned long node,
 	/*
 	 * Allocate a buffer to hold the MC recoverable ranges.
 	 */
-	mc_recoverable_range = memblock_alloc(size, __alignof__(u64));
-	if (!mc_recoverable_range)
-		panic("%s: Failed to allocate %u bytes align=0x%lx\n",
-		      __func__, size, __alignof__(u64));
+	mc_recoverable_range = memblock_alloc_or_panic(size, __alignof__(u64));
 
 	for (i = 0; i < mc_recoverable_range_len; i++) {
 		mc_recoverable_range[i].start_addr =
@@ -792,14 +789,6 @@ static int __init opal_sysfs_init(void)
 	return 0;
 }
 
-static ssize_t export_attr_read(struct file *fp, struct kobject *kobj,
-				struct bin_attribute *bin_attr, char *buf,
-				loff_t off, size_t count)
-{
-	return memory_read_from_buffer(buf, count, &off, bin_attr->private,
-				       bin_attr->size);
-}
-
 static int opal_add_one_export(struct kobject *parent, const char *export_name,
 			       struct device_node *np, const char *prop_name)
 {
@@ -826,7 +815,7 @@ static int opal_add_one_export(struct kobject *parent, const char *export_name,
 	sysfs_bin_attr_init(attr);
 	attr->attr.name = name;
 	attr->attr.mode = 0400;
-	attr->read = export_attr_read;
+	attr->read_new = sysfs_bin_attr_simple_read;
 	attr->private = __va(vals[0]);
 	attr->size = vals[1];
 
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 23f5b5093ec1..b0a14e48175c 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1537,7 +1537,8 @@ static void pnv_ioda_setup_bus_dma(struct pnv_ioda_pe *pe, struct pci_bus *bus)
 	}
 }
 
-static long pnv_ioda2_take_ownership(struct iommu_table_group *table_group)
+static long pnv_ioda2_take_ownership(struct iommu_table_group *table_group,
+				     struct device *dev __maybe_unused)
 {
 	struct pnv_ioda_pe *pe = container_of(table_group, struct pnv_ioda_pe,
 						table_group);
@@ -1562,7 +1563,8 @@ static long pnv_ioda2_take_ownership(struct iommu_table_group *table_group)
 	return 0;
 }
 
-static void pnv_ioda2_release_ownership(struct iommu_table_group *table_group)
+static void pnv_ioda2_release_ownership(struct iommu_table_group *table_group,
+					struct device *dev __maybe_unused)
 {
 	struct pnv_ioda_pe *pe = container_of(table_group, struct pnv_ioda_pe,
 						table_group);
diff --git a/arch/powerpc/platforms/powernv/pci-sriov.c b/arch/powerpc/platforms/powernv/pci-sriov.c
index 59882da3e742..cc7b1dd54ac6 100644
--- a/arch/powerpc/platforms/powernv/pci-sriov.c
+++ b/arch/powerpc/platforms/powernv/pci-sriov.c
@@ -238,7 +238,7 @@ void pnv_pci_ioda_fixup_iov(struct pci_dev *pdev)
 	} else if (pdev->is_physfn) {
 		/*
 		 * For PFs adjust their allocated IOV resources to match what
-		 * the PHB can support using it's M64 BAR table.
+		 * the PHB can support using its M64 BAR table.
 		 */
 		pnv_pci_ioda_fixup_iov_resources(pdev);
 	}
@@ -658,7 +658,7 @@ static void pnv_ioda_setup_vf_PE(struct pci_dev *pdev, u16 num_vfs)
 		list_add_tail(&pe->list, &phb->ioda.pe_list);
 		mutex_unlock(&phb->ioda.pe_list_mutex);
 
-		/* associate this pe to it's pdn */
+		/* associate this pe to its pdn */
 		list_for_each_entry(vf_pdn, &pdn->parent->child_list, list) {
 			if (vf_pdn->busno == vf_bus &&
 			    vf_pdn->devfn == vf_devfn) {
diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h
index 957f2b47a3c0..93fba1f8661f 100644
--- a/arch/powerpc/platforms/powernv/pci.h
+++ b/arch/powerpc/platforms/powernv/pci.h
@@ -274,7 +274,6 @@ int pnv_pci_cfg_write(struct pci_dn *pdn,
 		      int where, int size, u32 val);
 extern struct iommu_table *pnv_pci_table_alloc(int nid);
 
-extern void pnv_pci_init_ioda_hub(struct device_node *np);
 extern void pnv_pci_init_ioda2_phb(struct device_node *np);
 extern void pnv_pci_init_npu2_opencapi_phb(struct device_node *np);
 extern void pnv_pci_reset_secondary_bus(struct pci_dev *dev);
diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c
index 9e1a25398f98..8f41ef364fc6 100644
--- a/arch/powerpc/platforms/powernv/smp.c
+++ b/arch/powerpc/platforms/powernv/smp.c
@@ -28,7 +28,7 @@
 #include <asm/xive.h>
 #include <asm/opal.h>
 #include <asm/runlatch.h>
-#include <asm/code-patching.h>
+#include <asm/text-patching.h>
 #include <asm/dbell.h>
 #include <asm/kvm_ppc.h>
 #include <asm/ppc-opcode.h>
@@ -36,6 +36,7 @@
 #include <asm/kexec.h>
 #include <asm/reg.h>
 #include <asm/powernv.h>
+#include <asm/systemcfg.h>
 
 #include "powernv.h"
 
@@ -136,7 +137,9 @@ static int pnv_smp_cpu_disable(void)
 	 * the generic fixup_irqs. --BenH.
 	 */
 	set_cpu_online(cpu, false);
-	vdso_data->processorCount--;
+#ifdef CONFIG_PPC64_PROC_SYSTEMCFG
+	systemcfg->processorCount--;
+#endif
 	if (cpu == boot_cpuid)
 		boot_cpuid = cpumask_any(cpu_online_mask);
 	if (xive_enabled())
@@ -434,7 +437,7 @@ void __init pnv_smp_init(void)
 	smp_ops = &pnv_smp_ops;
 
 #ifdef CONFIG_HOTPLUG_CPU
-#ifdef CONFIG_KEXEC_CORE
+#ifdef CONFIG_CRASH_DUMP
 	crash_wake_offline = 1;
 #endif
 #endif
diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c
index b664838008c1..5147df3a18ac 100644
--- a/arch/powerpc/platforms/powernv/vas-window.c
+++ b/arch/powerpc/platforms/powernv/vas-window.c
@@ -1059,7 +1059,7 @@ struct vas_window *vas_tx_win_open(int vasid, enum vas_cop_type cop,
 		}
 	} else {
 		/*
-		 * Interrupt hanlder or fault window setup failed. Means
+		 * Interrupt handler or fault window setup failed. Means
 		 * NX can not generate fault for page fault. So not
 		 * opening for user space tx window.
 		 */