Merge drm/drm-next into drm-xe-next

Backmerging drm-next in order to get up-to-date and in particular
to access commit 9ca5facd0400f610f3f7f71aeb7fc0b949a48c67.

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>

22 files changed, 730 insertions, 312 deletions

diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
index 018ac202de34..024b78a0cfc1 100644
--- a/drivers/base/arch_topology.c
+++ b/drivers/base/arch_topology.c
@@ -431,9 +431,6 @@ init_cpu_capacity_callback(struct notifier_block *nb,
 	struct cpufreq_policy *policy = data;
 	int cpu;
 
-	if (!raw_capacity)
-		return 0;
-
 	if (val != CPUFREQ_CREATE_POLICY)
 		return 0;
 
@@ -450,9 +447,11 @@ init_cpu_capacity_callback(struct notifier_block *nb,
 	}
 
 	if (cpumask_empty(cpus_to_visit)) {
-		topology_normalize_cpu_scale();
-		schedule_work(&update_topology_flags_work);
-		free_raw_capacity();
+		if (raw_capacity) {
+			topology_normalize_cpu_scale();
+			schedule_work(&update_topology_flags_work);
+			free_raw_capacity();
+		}
 		pr_debug("cpu_capacity: parsing done\n");
 		schedule_work(&parsing_done_work);
 	}
@@ -472,7 +471,7 @@ static int __init register_cpufreq_notifier(void)
 	 * On ACPI-based systems skip registering cpufreq notifier as cpufreq
 	 * information is not needed for cpu capacity initialization.
 	 */
-	if (!acpi_disabled || !raw_capacity)
+	if (!acpi_disabled)
 		return -EINVAL;
 
 	if (!alloc_cpumask_var(&cpus_to_visit, GFP_KERNEL))
diff --git a/drivers/base/base.h b/drivers/base/base.h
index eb4c0ace9242..0738ccad08b2 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -207,7 +207,7 @@ static inline int devtmpfs_init(void) { return 0; }
 #endif
 
 #ifdef CONFIG_BLOCK
-extern struct class block_class;
+extern const struct class block_class;
 static inline bool is_blockdev(struct device *dev)
 {
 	return dev->class == &block_class;
diff --git a/drivers/base/cacheinfo.c b/drivers/base/cacheinfo.c
index f1e79263fe61..23b8cba4a2a3 100644
--- a/drivers/base/cacheinfo.c
+++ b/drivers/base/cacheinfo.c
@@ -898,6 +898,37 @@ err:
 	return rc;
 }
 
+static unsigned int cpu_map_shared_cache(bool online, unsigned int cpu,
+					 cpumask_t **map)
+{
+	struct cacheinfo *llc, *sib_llc;
+	unsigned int sibling;
+
+	if (!last_level_cache_is_valid(cpu))
+		return 0;
+
+	llc = per_cpu_cacheinfo_idx(cpu, cache_leaves(cpu) - 1);
+
+	if (llc->type != CACHE_TYPE_DATA && llc->type != CACHE_TYPE_UNIFIED)
+		return 0;
+
+	if (online) {
+		*map = &llc->shared_cpu_map;
+		return cpumask_weight(*map);
+	}
+
+	/* shared_cpu_map of offlined CPU will be cleared, so use sibling map */
+	for_each_cpu(sibling, &llc->shared_cpu_map) {
+		if (sibling == cpu || !last_level_cache_is_valid(sibling))
+			continue;
+		sib_llc = per_cpu_cacheinfo_idx(sibling, cache_leaves(sibling) - 1);
+		*map = &sib_llc->shared_cpu_map;
+		return cpumask_weight(*map);
+	}
+
+	return 0;
+}
+
 /*
  * Calculate the size of the per-CPU data cache slice.  This can be
  * used to estimate the size of the data cache slice that can be used
@@ -929,28 +960,31 @@ static void update_per_cpu_data_slice_size_cpu(unsigned int cpu)
 		ci->per_cpu_data_slice_size = llc->size / nr_shared;
 }
 
-static void update_per_cpu_data_slice_size(bool cpu_online, unsigned int cpu)
+static void update_per_cpu_data_slice_size(bool cpu_online, unsigned int cpu,
+					   cpumask_t *cpu_map)
 {
 	unsigned int icpu;
 
-	for_each_online_cpu(icpu) {
+	for_each_cpu(icpu, cpu_map) {
 		if (!cpu_online && icpu == cpu)
 			continue;
 		update_per_cpu_data_slice_size_cpu(icpu);
+		setup_pcp_cacheinfo(icpu);
 	}
 }
 
 static int cacheinfo_cpu_online(unsigned int cpu)
 {
 	int rc = detect_cache_attributes(cpu);
+	cpumask_t *cpu_map;
 
 	if (rc)
 		return rc;
 	rc = cache_add_dev(cpu);
 	if (rc)
 		goto err;
-	update_per_cpu_data_slice_size(true, cpu);
-	setup_pcp_cacheinfo();
+	if (cpu_map_shared_cache(true, cpu, &cpu_map))
+		update_per_cpu_data_slice_size(true, cpu, cpu_map);
 	return 0;
 err:
 	free_cache_attributes(cpu);
@@ -959,12 +993,16 @@ err:
 
 static int cacheinfo_cpu_pre_down(unsigned int cpu)
 {
+	cpumask_t *cpu_map;
+	unsigned int nr_shared;
+
+	nr_shared = cpu_map_shared_cache(false, cpu, &cpu_map);
 	if (cpumask_test_and_clear_cpu(cpu, &cache_dev_map))
 		cpu_cache_sysfs_exit(cpu);
 
 	free_cache_attributes(cpu);
-	update_per_cpu_data_slice_size(false, cpu);
-	setup_pcp_cacheinfo();
+	if (nr_shared > 1)
+		update_per_cpu_data_slice_size(false, cpu, cpu_map);
 	return 0;
 }
 
diff --git a/drivers/base/component.c b/drivers/base/component.c
index 7dbf14a1d915..741497324d78 100644
--- a/drivers/base/component.c
+++ b/drivers/base/component.c
@@ -751,7 +751,7 @@ static int __component_add(struct device *dev, const struct component_ops *ops,
  * component_bind_all(). See also &struct component_ops.
  *
  * @subcomponent must be nonzero and is used to differentiate between multiple
- * components registerd on the same device @dev. These components are match
+ * components registered on the same device @dev. These components are match
  * using component_match_add_typed().
  *
  * The component needs to be unregistered at driver unload/disconnect by
@@ -781,7 +781,7 @@ EXPORT_SYMBOL_GPL(component_add_typed);
  * The component needs to be unregistered at driver unload/disconnect by
  * calling component_del().
  *
- * See also component_add_typed() for a variant that allows multipled different
+ * See also component_add_typed() for a variant that allows multiple different
  * components on the same device.
  */
 int component_add(struct device *dev, const struct component_ops *ops)
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 14d46af40f9a..b93f3c5716ae 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -92,12 +92,13 @@ static int __fwnode_link_add(struct fwnode_handle *con,
 	return 0;
 }
 
-int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup)
+int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup,
+		    u8 flags)
 {
 	int ret;
 
 	mutex_lock(&fwnode_link_lock);
-	ret = __fwnode_link_add(con, sup, 0);
+	ret = __fwnode_link_add(con, sup, flags);
 	mutex_unlock(&fwnode_link_lock);
 	return ret;
 }
@@ -125,7 +126,7 @@ static void __fwnode_link_del(struct fwnode_link *link)
  */
 static void __fwnode_link_cycle(struct fwnode_link *link)
 {
-	pr_debug("%pfwf: Relaxing link with %pfwf\n",
+	pr_debug("%pfwf: cycle: depends on %pfwf\n",
 		 link->consumer, link->supplier);
 	link->flags |= FWLINK_FLAG_CYCLE;
 }
@@ -284,10 +285,12 @@ static bool device_is_ancestor(struct device *dev, struct device *target)
 	return false;
 }
 
+#define DL_MARKER_FLAGS		(DL_FLAG_INFERRED | \
+				 DL_FLAG_CYCLE | \
+				 DL_FLAG_MANAGED)
 static inline bool device_link_flag_is_sync_state_only(u32 flags)
 {
-	return (flags & ~(DL_FLAG_INFERRED | DL_FLAG_CYCLE)) ==
-		(DL_FLAG_SYNC_STATE_ONLY | DL_FLAG_MANAGED);
+	return (flags & ~DL_MARKER_FLAGS) == DL_FLAG_SYNC_STATE_ONLY;
 }
 
 /**
@@ -1009,7 +1012,8 @@ static struct fwnode_handle *fwnode_links_check_suppliers(
 		return NULL;
 
 	list_for_each_entry(link, &fwnode->suppliers, c_hook)
-		if (!(link->flags & FWLINK_FLAG_CYCLE))
+		if (!(link->flags &
+		      (FWLINK_FLAG_CYCLE | FWLINK_FLAG_IGNORE)))
 			return link->supplier;
 
 	return NULL;
@@ -1869,6 +1873,7 @@ static void fw_devlink_unblock_consumers(struct device *dev)
 	device_links_write_unlock();
 }
 
+#define get_dev_from_fwnode(fwnode)	get_device((fwnode)->dev)
 
 static bool fwnode_init_without_drv(struct fwnode_handle *fwnode)
 {
@@ -1900,6 +1905,63 @@ static bool fwnode_ancestor_init_without_drv(struct fwnode_handle *fwnode)
 }
 
 /**
+ * fwnode_is_ancestor_of - Test if @ancestor is ancestor of @child
+ * @ancestor: Firmware which is tested for being an ancestor
+ * @child: Firmware which is tested for being the child
+ *
+ * A node is considered an ancestor of itself too.
+ *
+ * Return: true if @ancestor is an ancestor of @child. Otherwise, returns false.
+ */
+static bool fwnode_is_ancestor_of(const struct fwnode_handle *ancestor,
+				  const struct fwnode_handle *child)
+{
+	struct fwnode_handle *parent;
+
+	if (IS_ERR_OR_NULL(ancestor))
+		return false;
+
+	if (child == ancestor)
+		return true;
+
+	fwnode_for_each_parent_node(child, parent) {
+		if (parent == ancestor) {
+			fwnode_handle_put(parent);
+			return true;
+		}
+	}
+	return false;
+}
+
+/**
+ * fwnode_get_next_parent_dev - Find device of closest ancestor fwnode
+ * @fwnode: firmware node
+ *
+ * Given a firmware node (@fwnode), this function finds its closest ancestor
+ * firmware node that has a corresponding struct device and returns that struct
+ * device.
+ *
+ * The caller is responsible for calling put_device() on the returned device
+ * pointer.
+ *
+ * Return: a pointer to the device of the @fwnode's closest ancestor.
+ */
+static struct device *fwnode_get_next_parent_dev(const struct fwnode_handle *fwnode)
+{
+	struct fwnode_handle *parent;
+	struct device *dev;
+
+	fwnode_for_each_parent_node(fwnode, parent) {
+		dev = get_dev_from_fwnode(parent);
+		if (dev) {
+			fwnode_handle_put(parent);
+			return dev;
+		}
+	}
+	return NULL;
+}
+
+/**
  * __fw_devlink_relax_cycles - Relax and mark dependency cycles.
  * @con: Potential consumer device.
  * @sup_handle: Potential supplier's fwnode.
@@ -1943,6 +2005,7 @@ static bool __fw_devlink_relax_cycles(struct device *con,
 
 	/* Termination condition. */
 	if (sup_dev == con) {
+		pr_debug("----- cycle: start -----\n");
 		ret = true;
 		goto out;
 	}
@@ -1959,6 +2022,9 @@ static bool __fw_devlink_relax_cycles(struct device *con,
 	}
 
 	list_for_each_entry(link, &sup_handle->suppliers, c_hook) {
+		if (link->flags & FWLINK_FLAG_IGNORE)
+			continue;
+
 		if (__fw_devlink_relax_cycles(con, link->supplier)) {
 			__fwnode_link_cycle(link);
 			ret = true;
@@ -1974,8 +2040,11 @@ static bool __fw_devlink_relax_cycles(struct device *con,
 	else
 		par_dev = fwnode_get_next_parent_dev(sup_handle);
 
-	if (par_dev && __fw_devlink_relax_cycles(con, par_dev->fwnode))
+	if (par_dev && __fw_devlink_relax_cycles(con, par_dev->fwnode)) {
+		pr_debug("%pfwf: cycle: child of %pfwf\n", sup_handle,
+			 par_dev->fwnode);
 		ret = true;
+	}
 
 	if (!sup_dev)
 		goto out;
@@ -1991,6 +2060,8 @@ static bool __fw_devlink_relax_cycles(struct device *con,
 
 		if (__fw_devlink_relax_cycles(con,
 					      dev_link->supplier->fwnode)) {
+			pr_debug("%pfwf: cycle: depends on %pfwf\n", sup_handle,
+				 dev_link->supplier->fwnode);
 			fw_devlink_relax_link(dev_link);
 			dev_link->flags |= DL_FLAG_CYCLE;
 			ret = true;
@@ -2032,6 +2103,9 @@ static int fw_devlink_create_devlink(struct device *con,
 	int ret = 0;
 	u32 flags;
 
+	if (link->flags & FWLINK_FLAG_IGNORE)
+		return 0;
+
 	if (con->fwnode == link->consumer)
 		flags = fw_devlink_get_flags(link->flags);
 	else
@@ -2058,13 +2132,19 @@ static int fw_devlink_create_devlink(struct device *con,
 
 	/*
 	 * SYNC_STATE_ONLY device links don't block probing and supports cycles.
-	 * So cycle detection isn't necessary and shouldn't be done.
+	 * So, one might expect that cycle detection isn't necessary for them.
+	 * However, if the device link was marked as SYNC_STATE_ONLY because
+	 * it's part of a cycle, then we still need to do cycle detection. This
+	 * is because the consumer and supplier might be part of multiple cycles
+	 * and we need to detect all those cycles.
 	 */
-	if (!(flags & DL_FLAG_SYNC_STATE_ONLY)) {
+	if (!device_link_flag_is_sync_state_only(flags) ||
+	    flags & DL_FLAG_CYCLE) {
 		device_links_write_lock();
 		if (__fw_devlink_relax_cycles(con, sup_handle)) {
 			__fwnode_link_cycle(link);
 			flags = fw_devlink_get_flags(link->flags);
+			pr_debug("----- cycle: end -----\n");
 			dev_info(con, "Fixed dependency cycle(s) with %pfwf\n",
 				 sup_handle);
 		}
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 47de0f140ba6..56fba44ba391 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -144,7 +144,7 @@ static DEVICE_ATTR(release, S_IWUSR, NULL, cpu_release_store);
 #endif /* CONFIG_ARCH_CPU_PROBE_RELEASE */
 #endif /* CONFIG_HOTPLUG_CPU */
 
-#ifdef CONFIG_KEXEC_CORE
+#ifdef CONFIG_CRASH_DUMP
 #include <linux/kexec.h>
 
 static ssize_t crash_notes_show(struct device *dev,
@@ -189,14 +189,14 @@ static const struct attribute_group crash_note_cpu_attr_group = {
 #endif
 
 static const struct attribute_group *common_cpu_attr_groups[] = {
-#ifdef CONFIG_KEXEC_CORE
+#ifdef CONFIG_CRASH_DUMP
 	&crash_note_cpu_attr_group,
 #endif
 	NULL
 };
 
 static const struct attribute_group *hotplugable_cpu_attr_groups[] = {
-#ifdef CONFIG_KEXEC_CORE
+#ifdef CONFIG_CRASH_DUMP
 	&crash_note_cpu_attr_group,
 #endif
 	NULL
@@ -366,7 +366,7 @@ static int cpu_uevent(const struct device *dev, struct kobj_uevent_env *env)
 }
 #endif
 
-struct bus_type cpu_subsys = {
+const struct bus_type cpu_subsys = {
 	.name = "cpu",
 	.dev_name = "cpu",
 	.match = cpu_subsys_match,
@@ -588,6 +588,7 @@ CPU_SHOW_VULN_FALLBACK(mmio_stale_data);
 CPU_SHOW_VULN_FALLBACK(retbleed);
 CPU_SHOW_VULN_FALLBACK(spec_rstack_overflow);
 CPU_SHOW_VULN_FALLBACK(gds);
+CPU_SHOW_VULN_FALLBACK(reg_file_data_sampling);
 
 static DEVICE_ATTR(meltdown, 0444, cpu_show_meltdown, NULL);
 static DEVICE_ATTR(spectre_v1, 0444, cpu_show_spectre_v1, NULL);
@@ -602,6 +603,7 @@ static DEVICE_ATTR(mmio_stale_data, 0444, cpu_show_mmio_stale_data, NULL);
 static DEVICE_ATTR(retbleed, 0444, cpu_show_retbleed, NULL);
 static DEVICE_ATTR(spec_rstack_overflow, 0444, cpu_show_spec_rstack_overflow, NULL);
 static DEVICE_ATTR(gather_data_sampling, 0444, cpu_show_gds, NULL);
+static DEVICE_ATTR(reg_file_data_sampling, 0444, cpu_show_reg_file_data_sampling, NULL);
 
 static struct attribute *cpu_root_vulnerabilities_attrs[] = {
 	&dev_attr_meltdown.attr,
@@ -617,6 +619,7 @@ static struct attribute *cpu_root_vulnerabilities_attrs[] = {
 	&dev_attr_retbleed.attr,
 	&dev_attr_spec_rstack_overflow.attr,
 	&dev_attr_gather_data_sampling.attr,
+	&dev_attr_reg_file_data_sampling.attr,
 	NULL
 };
 
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 85152537dbf1..83d352394fdf 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -313,7 +313,7 @@ static void deferred_probe_timeout_work_func(struct work_struct *work)
 
 	mutex_lock(&deferred_probe_mutex);
 	list_for_each_entry(p, &deferred_probe_pending_list, deferred_probe)
-		dev_info(p->device, "deferred probe pending: %s", p->deferred_probe_reason ?: "(reason unknown)\n");
+		dev_warn(p->device, "deferred probe pending: %s", p->deferred_probe_reason ?: "(reason unknown)\n");
 	mutex_unlock(&deferred_probe_mutex);
 
 	fw_devlink_probing_done();
@@ -397,13 +397,12 @@ bool device_is_bound(struct device *dev)
 static void driver_bound(struct device *dev)
 {
 	if (device_is_bound(dev)) {
-		pr_warn("%s: device %s already bound\n",
-			__func__, kobject_name(&dev->kobj));
+		dev_warn(dev, "%s: device already bound\n", __func__);
 		return;
 	}
 
-	pr_debug("driver: '%s': %s: bound to device '%s'\n", dev->driver->name,
-		 __func__, dev_name(dev));
+	dev_dbg(dev, "driver: '%s': %s: bound to device\n", dev->driver->name,
+		__func__);
 
 	klist_add_tail(&dev->p->knode_driver, &dev->driver->p->klist_devices);
 	device_links_driver_bound(dev);
@@ -587,13 +586,13 @@ static int call_driver_probe(struct device *dev, struct device_driver *drv)
 		break;
 	case -ENODEV:
 	case -ENXIO:
-		pr_debug("%s: probe of %s rejects match %d\n",
-			 drv->name, dev_name(dev), ret);
+		dev_dbg(dev, "probe with driver %s rejects match %d\n",
+			drv->name, ret);
 		break;
 	default:
 		/* driver matched but the probe failed */
-		pr_warn("%s: probe of %s failed with error %d\n",
-			drv->name, dev_name(dev), ret);
+		dev_err(dev, "probe with driver %s failed with error %d\n",
+			drv->name, ret);
 		break;
 	}
 
@@ -620,8 +619,8 @@ static int really_probe(struct device *dev, struct device_driver *drv)
 	if (link_ret == -EPROBE_DEFER)
 		return link_ret;
 
-	pr_debug("bus: '%s': %s: probing driver %s with device %s\n",
-		 drv->bus->name, __func__, drv->name, dev_name(dev));
+	dev_dbg(dev, "bus: '%s': %s: probing driver %s with device\n",
+		drv->bus->name, __func__, drv->name);
 	if (!list_empty(&dev->devres_head)) {
 		dev_crit(dev, "Resources present before probing\n");
 		ret = -EBUSY;
@@ -644,8 +643,7 @@ re_probe:
 
 	ret = driver_sysfs_add(dev);
 	if (ret) {
-		pr_err("%s: driver_sysfs_add(%s) failed\n",
-		       __func__, dev_name(dev));
+		dev_err(dev, "%s: driver_sysfs_add failed\n", __func__);
 		goto sysfs_failed;
 	}
 
@@ -706,8 +704,8 @@ re_probe:
 		dev->pm_domain->sync(dev);
 
 	driver_bound(dev);
-	pr_debug("bus: '%s': %s: bound device %s to driver %s\n",
-		 drv->bus->name, __func__, dev_name(dev), drv->name);
+	dev_dbg(dev, "bus: '%s': %s: bound device to driver %s\n",
+		drv->bus->name, __func__, drv->name);
 	goto done;
 
 dev_sysfs_state_synced_failed:
@@ -786,8 +784,8 @@ static int __driver_probe_device(struct device_driver *drv, struct device *dev)
 		return -EBUSY;
 
 	dev->can_match = true;
-	pr_debug("bus: '%s': %s: matched device %s with driver %s\n",
-		 drv->bus->name, __func__, dev_name(dev), drv->name);
+	dev_dbg(dev, "bus: '%s': %s: matched device with driver %s\n",
+		drv->bus->name, __func__, drv->name);
 
 	pm_runtime_get_suppliers(dev);
 	if (dev->parent)
diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c
index ea28102d421e..da8ca01d011c 100644
--- a/drivers/base/firmware_loader/main.c
+++ b/drivers/base/firmware_loader/main.c
@@ -551,12 +551,16 @@ fw_get_filesystem_firmware(struct device *device, struct fw_priv *fw_priv,
 						       file_size_ptr,
 						       READING_FIRMWARE);
 		if (rc < 0) {
-			if (rc != -ENOENT)
-				dev_warn(device, "loading %s failed with error %d\n",
-					 path, rc);
-			else
-				dev_dbg(device, "loading %s failed for no such file or directory.\n",
-					 path);
+			if (!(fw_priv->opt_flags & FW_OPT_NO_WARN)) {
+				if (rc != -ENOENT)
+					dev_warn(device,
+						 "loading %s failed with error %d\n",
+						 path, rc);
+				else
+					dev_dbg(device,
+						"loading %s failed for no such file or directory.\n",
+						path);
+			}
 			continue;
 		}
 		size = rc;
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 14f964a7719b..c0436f46cfb7 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -188,6 +188,7 @@ static int memory_block_online(struct memory_block *mem)
 	unsigned long start_pfn = section_nr_to_pfn(mem->start_section_nr);
 	unsigned long nr_pages = PAGES_PER_SECTION * sections_per_block;
 	unsigned long nr_vmemmap_pages = 0;
+	struct memory_notify arg;
 	struct zone *zone;
 	int ret;
 
@@ -207,9 +208,19 @@ static int memory_block_online(struct memory_block *mem)
 	if (mem->altmap)
 		nr_vmemmap_pages = mem->altmap->free;
 
+	arg.altmap_start_pfn = start_pfn;
+	arg.altmap_nr_pages = nr_vmemmap_pages;
+	arg.start_pfn = start_pfn + nr_vmemmap_pages;
+	arg.nr_pages = nr_pages - nr_vmemmap_pages;
 	mem_hotplug_begin();
+	ret = memory_notify(MEM_PREPARE_ONLINE, &arg);
+	ret = notifier_to_errno(ret);
+	if (ret)
+		goto out_notifier;
+
 	if (nr_vmemmap_pages) {
-		ret = mhp_init_memmap_on_memory(start_pfn, nr_vmemmap_pages, zone);
+		ret = mhp_init_memmap_on_memory(start_pfn, nr_vmemmap_pages,
+						zone, mem->altmap->inaccessible);
 		if (ret)
 			goto out;
 	}
@@ -231,7 +242,11 @@ static int memory_block_online(struct memory_block *mem)
 					  nr_vmemmap_pages);
 
 	mem->zone = zone;
+	mem_hotplug_done();
+	return ret;
 out:
+	memory_notify(MEM_FINISH_OFFLINE, &arg);
+out_notifier:
 	mem_hotplug_done();
 	return ret;
 }
@@ -244,6 +259,7 @@ static int memory_block_offline(struct memory_block *mem)
 	unsigned long start_pfn = section_nr_to_pfn(mem->start_section_nr);
 	unsigned long nr_pages = PAGES_PER_SECTION * sections_per_block;
 	unsigned long nr_vmemmap_pages = 0;
+	struct memory_notify arg;
 	int ret;
 
 	if (!mem->zone)
@@ -275,6 +291,11 @@ static int memory_block_offline(struct memory_block *mem)
 		mhp_deinit_memmap_on_memory(start_pfn, nr_vmemmap_pages);
 
 	mem->zone = NULL;
+	arg.altmap_start_pfn = start_pfn;
+	arg.altmap_nr_pages = nr_vmemmap_pages;
+	arg.start_pfn = start_pfn + nr_vmemmap_pages;
+	arg.nr_pages = nr_pages - nr_vmemmap_pages;
+	memory_notify(MEM_FINISH_OFFLINE, &arg);
 out:
 	mem_hotplug_done();
 	return ret;
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 1c05640461dd..eb72580288e6 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -126,7 +126,7 @@ static void node_access_release(struct device *dev)
 }
 
 static struct node_access_nodes *node_init_node_access(struct node *node,
-						       unsigned int access)
+						       enum access_coordinate_class access)
 {
 	struct node_access_nodes *access_node;
 	struct device *dev;
@@ -191,7 +191,7 @@ static struct attribute *access_attrs[] = {
  * @access: The access class the for the given attributes
  */
 void node_set_perf_attrs(unsigned int nid, struct access_coordinate *coord,
-			 unsigned int access)
+			 enum access_coordinate_class access)
 {
 	struct node_access_nodes *c;
 	struct node *node;
@@ -215,6 +215,7 @@ void node_set_perf_attrs(unsigned int nid, struct access_coordinate *coord,
 		}
 	}
 }
+EXPORT_SYMBOL_GPL(node_set_perf_attrs);
 
 /**
  * struct node_cache_info - Internal tracking for memory node caches
@@ -689,7 +690,7 @@ int register_cpu_under_node(unsigned int cpu, unsigned int nid)
  */
 int register_memory_node_under_compute_node(unsigned int mem_nid,
 					    unsigned int cpu_nid,
-					    unsigned int access)
+					    enum access_coordinate_class access)
 {
 	struct node *init_node, *targ_node;
 	struct node_access_nodes *initiator, *target;
diff --git a/drivers/base/platform-msi.c b/drivers/base/platform-msi.c
index f37ad34c80ec..11f5fdf65b9e 100644
--- a/drivers/base/platform-msi.c
+++ b/drivers/base/platform-msi.c
@@ -13,6 +13,8 @@
 #include <linux/msi.h>
 #include <linux/slab.h>
 
+/* Begin of removal area. Once everything is converted over. Cleanup the includes too! */
+
 #define DEV_ID_SHIFT	21
 #define MAX_DEV_MSIS	(1 << (32 - DEV_ID_SHIFT))
 
@@ -172,8 +174,8 @@ static int platform_msi_alloc_priv_data(struct device *dev, unsigned int nvec,
 	if (!datap)
 		return -ENOMEM;
 
-	datap->devid = ida_simple_get(&platform_msi_devid_ida,
-				      0, 1 << DEV_ID_SHIFT, GFP_KERNEL);
+	datap->devid = ida_alloc_max(&platform_msi_devid_ida,
+				     (1 << DEV_ID_SHIFT) - 1, GFP_KERNEL);
 	if (datap->devid < 0) {
 		err = datap->devid;
 		kfree(datap);
@@ -191,7 +193,7 @@ static void platform_msi_free_priv_data(struct device *dev)
 	struct platform_msi_priv_data *data = dev->msi.data->platform_data;
 
 	dev->msi.data->platform_data = NULL;
-	ida_simple_remove(&platform_msi_devid_ida, data->devid);
+	ida_free(&platform_msi_devid_ida, data->devid);
 	kfree(data);
 }
 
@@ -204,8 +206,8 @@ static void platform_msi_free_priv_data(struct device *dev)
  * Returns:
  * Zero for success, or an error code in case of failure
  */
-int platform_msi_domain_alloc_irqs(struct device *dev, unsigned int nvec,
-				   irq_write_msi_msg_t write_msi_msg)
+static int platform_msi_domain_alloc_irqs(struct device *dev, unsigned int nvec,
+					  irq_write_msi_msg_t write_msi_msg)
 {
 	int err;
 
@@ -219,18 +221,6 @@ int platform_msi_domain_alloc_irqs(struct device *dev, unsigned int nvec,
 
 	return err;
 }
-EXPORT_SYMBOL_GPL(platform_msi_domain_alloc_irqs);
-
-/**
- * platform_msi_domain_free_irqs - Free MSI interrupts for @dev
- * @dev:	The device for which to free interrupts
- */
-void platform_msi_domain_free_irqs(struct device *dev)
-{
-	msi_domain_free_irqs_all(dev, MSI_DEFAULT_DOMAIN);
-	platform_msi_free_priv_data(dev);
-}
-EXPORT_SYMBOL_GPL(platform_msi_domain_free_irqs);
 
 /**
  * platform_msi_get_host_data - Query the private data associated with
@@ -350,3 +340,104 @@ int platform_msi_device_domain_alloc(struct irq_domain *domain, unsigned int vir
 
 	return msi_domain_populate_irqs(domain->parent, dev, virq, nr_irqs, &data->arg);
 }
+
+/* End of removal area */
+
+/* Real per device domain interfaces */
+
+/*
+ * This indirection can go when platform_device_msi_init_and_alloc_irqs()
+ * is switched to a proper irq_chip::irq_write_msi_msg() callback. Keep it
+ * simple for now.
+ */
+static void platform_msi_write_msi_msg(struct irq_data *d, struct msi_msg *msg)
+{
+	irq_write_msi_msg_t cb = d->chip_data;
+
+	cb(irq_data_get_msi_desc(d), msg);
+}
+
+static void platform_msi_set_desc_byindex(msi_alloc_info_t *arg, struct msi_desc *desc)
+{
+	arg->desc = desc;
+	arg->hwirq = desc->msi_index;
+}
+
+static const struct msi_domain_template platform_msi_template = {
+	.chip = {
+		.name			= "pMSI",
+		.irq_mask		= irq_chip_mask_parent,
+		.irq_unmask		= irq_chip_unmask_parent,
+		.irq_write_msi_msg	= platform_msi_write_msi_msg,
+		/* The rest is filled in by the platform MSI parent */
+	},
+
+	.ops = {
+		.set_desc		= platform_msi_set_desc_byindex,
+	},
+
+	.info = {
+		.bus_token		= DOMAIN_BUS_DEVICE_MSI,
+	},
+};
+
+/**
+ * platform_device_msi_init_and_alloc_irqs - Initialize platform device MSI
+ *					     and allocate interrupts for @dev
+ * @dev:		The device for which to allocate interrupts
+ * @nvec:		The number of interrupts to allocate
+ * @write_msi_msg:	Callback to write an interrupt message for @dev
+ *
+ * Returns:
+ * Zero for success, or an error code in case of failure
+ *
+ * This creates a MSI domain on @dev which has @dev->msi.domain as
+ * parent. The parent domain sets up the new domain. The domain has
+ * a fixed size of @nvec. The domain is managed by devres and will
+ * be removed when the device is removed.
+ *
+ * Note: For migration purposes this falls back to the original platform_msi code
+ *	 up to the point where all platforms have been converted to the MSI
+ *	 parent model.
+ */
+int platform_device_msi_init_and_alloc_irqs(struct device *dev, unsigned int nvec,
+					    irq_write_msi_msg_t write_msi_msg)
+{
+	struct irq_domain *domain = dev->msi.domain;
+
+	if (!domain || !write_msi_msg)
+		return -EINVAL;
+
+	/* Migration support. Will go away once everything is converted */
+	if (!irq_domain_is_msi_parent(domain))
+		return platform_msi_domain_alloc_irqs(dev, nvec, write_msi_msg);
+
+	/*
+	 * @write_msi_msg is stored in the resulting msi_domain_info::data.
+	 * The underlying domain creation mechanism will assign that
+	 * callback to the resulting irq chip.
+	 */
+	if (!msi_create_device_irq_domain(dev, MSI_DEFAULT_DOMAIN,
+					  &platform_msi_template,
+					  nvec, NULL, write_msi_msg))
+		return -ENODEV;
+
+	return msi_domain_alloc_irqs_range(dev, MSI_DEFAULT_DOMAIN, 0, nvec - 1);
+}
+EXPORT_SYMBOL_GPL(platform_device_msi_init_and_alloc_irqs);
+
+/**
+ * platform_device_msi_free_irqs_all - Free all interrupts for @dev
+ * @dev:	The device for which to free interrupts
+ */
+void platform_device_msi_free_irqs_all(struct device *dev)
+{
+	struct irq_domain *domain = dev->msi.domain;
+
+	msi_domain_free_irqs_all(dev, MSI_DEFAULT_DOMAIN);
+
+	/* Migration support. Will go away once everything is converted */
+	if (!irq_domain_is_msi_parent(domain))
+		platform_msi_free_priv_data(dev);
+}
+EXPORT_SYMBOL_GPL(platform_device_msi_free_irqs_all);
diff --git a/drivers/base/power/common.c b/drivers/base/power/common.c
index 44ec20918a4d..327d168dd37a 100644
--- a/drivers/base/power/common.c
+++ b/drivers/base/power/common.c
@@ -168,6 +168,115 @@ struct device *dev_pm_domain_attach_by_name(struct device *dev,
 EXPORT_SYMBOL_GPL(dev_pm_domain_attach_by_name);
 
 /**
+ * dev_pm_domain_attach_list - Associate a device with its PM domains.
+ * @dev: The device used to lookup the PM domains for.
+ * @data: The data used for attaching to the PM domains.
+ * @list: An out-parameter