Merge tag 'powerpc-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Add support for building the kernel using PC-relative addressing on
   Power10.

 - Allow HV KVM guests on Power10 to use prefixed instructions.

 - Unify support for the P2020 CPU (85xx) into a single machine
   description.

 - Always build the 64-bit kernel with 128-bit long double.

 - Drop support for several obsolete 2000's era development boards as
   identified by Paul Gortmaker.

 - A series fixing VFIO on Power since some generic changes.

 - Various other small features and fixes.

Thanks to Alexey Kardashevskiy, Andrew Donnellan, Benjamin Gray, Bo Liu,
Christophe Leroy, Dan Carpenter, David Binderman, Ira Weiny, Joel
Stanley, Kajol Jain, Kautuk Consul, Liang He, Luis Chamberlain, Masahiro
Yamada, Michael Neuling, Nathan Chancellor, Nathan Lynch, Nicholas
Miehlbradt, Nicholas Piggin, Nick Desaulniers, Nysal Jan K.A, Pali
Rohár, Paul Gortmaker, Paul Mackerras, Petr Vaněk, Randy Dunlap, Rob
Herring, Sachin Sant, Sean Christopherson, Segher Boessenkool, and
Timothy Pearson.

* tag 'powerpc-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (156 commits)
  powerpc/64s: Disable pcrel code model on Clang
  powerpc: Fix merge conflict between pcrel and copy_thread changes
  powerpc/configs/powernv: Add IGB=y
  powerpc/configs/64s: Drop JFS Filesystem
  powerpc/configs/64s: Use EXT4 to mount EXT2 filesystems
  powerpc/configs: Make pseries_defconfig an alias for ppc64le_guest
  powerpc/configs: Make pseries_le an alias for ppc64le_guest
  powerpc/configs: Incorporate generic kvm_guest.config into guest configs
  powerpc/configs: Add IBMVETH=y and IBMVNIC=y to guest configs
  powerpc/configs/64s: Enable Device Mapper options
  powerpc/configs/64s: Enable PSTORE
  powerpc/configs/64s: Enable VLAN support
  powerpc/configs/64s: Enable BLK_DEV_NVME
  powerpc/configs/64s: Drop REISERFS
  powerpc/configs/64s: Use SHA512 for module signatures
  powerpc/configs/64s: Enable IO_STRICT_DEVMEM
  powerpc/configs/64s: Enable SCHEDSTATS
  powerpc/configs/64s: Enable DEBUG_VM & other options
  powerpc/configs/64s: Enable EMULATED_STATS
  powerpc/configs/64s: Enable KUNIT and most tests
  ...

7 files changed, 32 insertions, 100 deletions

diff --git a/drivers/cpuidle/cpuidle-pseries.c b/drivers/cpuidle/cpuidle-pseries.c
index 1bad4d2b7be3..a7d33f3ee01e 100644
--- a/drivers/cpuidle/cpuidle-pseries.c
+++ b/drivers/cpuidle/cpuidle-pseries.c
@@ -33,16 +33,16 @@ static struct cpuidle_state *cpuidle_state_table __read_mostly;
 static u64 snooze_timeout __read_mostly;
 static bool snooze_timeout_en __read_mostly;
 
-static int snooze_loop(struct cpuidle_device *dev,
-			struct cpuidle_driver *drv,
-			int index)
+static __cpuidle
+int snooze_loop(struct cpuidle_device *dev, struct cpuidle_driver *drv,
+		int index)
 {
 	u64 snooze_exit_time;
 
 	set_thread_flag(TIF_POLLING_NRFLAG);
 
 	pseries_idle_prolog();
-	local_irq_enable();
+	raw_local_irq_enable();
 	snooze_exit_time = get_tb() + snooze_timeout;
 	dev->poll_time_limit = false;
 
@@ -65,14 +65,14 @@ static int snooze_loop(struct cpuidle_device *dev,
 	HMT_medium();
 	clear_thread_flag(TIF_POLLING_NRFLAG);
 
-	local_irq_disable();
+	raw_local_irq_disable();
 
 	pseries_idle_epilog();
 
 	return index;
 }
 
-static void check_and_cede_processor(void)
+static __cpuidle void check_and_cede_processor(void)
 {
 	/*
 	 * Ensure our interrupt state is properly tracked,
@@ -216,9 +216,9 @@ static int __init parse_cede_parameters(void)
 #define NR_DEDICATED_STATES	2 /* snooze, CEDE */
 static u8 cede_latency_hint[NR_DEDICATED_STATES];
 
-static int dedicated_cede_loop(struct cpuidle_device *dev,
-				struct cpuidle_driver *drv,
-				int index)
+static __cpuidle
+int dedicated_cede_loop(struct cpuidle_device *dev, struct cpuidle_driver *drv,
+			int index)
 {
 	u8 old_latency_hint;
 
@@ -230,7 +230,7 @@ static int dedicated_cede_loop(struct cpuidle_device *dev,
 	HMT_medium();
 	check_and_cede_processor();
 
-	local_irq_disable();
+	raw_local_irq_disable();
 	get_lppaca()->donate_dedicated_cpu = 0;
 	get_lppaca()->cede_latency_hint = old_latency_hint;
 
@@ -239,9 +239,9 @@ static int dedicated_cede_loop(struct cpuidle_device *dev,
 	return index;
 }
 
-static int shared_cede_loop(struct cpuidle_device *dev,
-			struct cpuidle_driver *drv,
-			int index)
+static __cpuidle
+int shared_cede_loop(struct cpuidle_device *dev, struct cpuidle_driver *drv,
+		     int index)
 {
 
 	pseries_idle_prolog();
@@ -255,7 +255,7 @@ static int shared_cede_loop(struct cpuidle_device *dev,
 	 */
 	check_and_cede_processor();
 
-	local_irq_disable();
+	raw_local_irq_disable();
 	pseries_idle_epilog();
 
 	return index;
diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig
index 06b438217c61..2d8e55e29637 100644
--- a/drivers/gpu/drm/amd/display/Kconfig
+++ b/drivers/gpu/drm/amd/display/Kconfig
@@ -8,7 +8,7 @@ config DRM_AMD_DC
 	depends on BROKEN || !CC_IS_CLANG || X86_64 || SPARC64 || ARM64
 	select SND_HDA_COMPONENT if SND_HDA_CORE
 	# !CC_IS_CLANG: https://github.com/ClangBuiltLinux/linux/issues/1752
-	select DRM_AMD_DC_FP if (X86 || PPC64 || (ARM64 && KERNEL_MODE_NEON && !CC_IS_CLANG))
+	select DRM_AMD_DC_FP if (X86 || (PPC64 && ALTIVEC) || (ARM64 && KERNEL_MODE_NEON && !CC_IS_CLANG))
 	help
 	  Choose this option if you want to use the new display engine
 	  support for AMDGPU. This adds required support for Vega and
diff --git a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig
index 539a2ed4e13d..a0e717a986dc 100644
--- a/drivers/macintosh/Kconfig
+++ b/drivers/macintosh/Kconfig
@@ -86,6 +86,7 @@ config ADB_PMU_LED
 
 config ADB_PMU_LED_DISK
 	bool "Use front LED as DISK LED by default"
+	depends on ATA
 	depends on ADB_PMU_LED
 	depends on LEDS_CLASS
 	select LEDS_TRIGGERS
diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c
index c28893e41a8b..40240bce77b0 100644
--- a/drivers/macintosh/rack-meter.c
+++ b/drivers/macintosh/rack-meter.c
@@ -387,7 +387,7 @@ static int rackmeter_probe(struct macio_dev* mdev,
 	       if (of_node_name_eq(np, "lightshow"))
 		       break;
 	       if (of_node_name_eq(np, "sound") &&
-		   of_get_property(np, "virtual", NULL) != NULL)
+		   of_property_present(np, "virtual"))
 		       break;
 	}
 	if (np == NULL) {
diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c
index 8f5db9093c9a..384b87d661e1 100644
--- a/drivers/macintosh/therm_adt746x.c
+++ b/drivers/macintosh/therm_adt746x.c
@@ -483,7 +483,7 @@ static int probe_thermostat(struct i2c_client *client)
 	if (vers != 1)
 		return -ENXIO;
 
-	if (of_get_property(np, "hwsensor-location", NULL)) {
+	if (of_property_present(np, "hwsensor-location")) {
 		for (i = 0; i < 3; i++) {
 			sensor_location[i] = of_get_property(np,
 					"hwsensor-location", NULL) + offset;
diff --git a/drivers/macintosh/windfarm_smu_sat.c b/drivers/macintosh/windfarm_smu_sat.c
index ebc4256a9e4a..089f2743a070 100644
--- a/drivers/macintosh/windfarm_smu_sat.c
+++ b/drivers/macintosh/windfarm_smu_sat.c
@@ -171,6 +171,7 @@ static void wf_sat_release(struct kref *ref)
 
 	if (sat->nr >= 0)
 		sats[sat->nr] = NULL;
+	of_node_put(sat->node);
 	kfree(sat);
 }
 
diff --git a/drivers/vfio/vfio_iommu_spapr_tce.c b/drivers/vfio/vfio_iommu_spapr_tce.c
index 60a50ce8701e..a94ec6225d31 100644
--- a/drivers/vfio/vfio_iommu_spapr_tce.c
+++ b/drivers/vfio/vfio_iommu_spapr_tce.c
@@ -1190,52 +1190,6 @@ static long tce_iommu_ioctl(void *iommu_data,
 static void tce_iommu_release_ownership(struct tce_container *container,
 		struct iommu_table_group *table_group)
 {
-	int i;
-
-	for (i = 0; i < IOMMU_TABLE_GROUP_MAX_TABLES; ++i) {
-		struct iommu_table *tbl = container->tables[i];
-
-		if (!tbl)
-			continue;
-
-		tce_iommu_clear(container, tbl, tbl->it_offset, tbl->it_size);
-		if (tbl->it_map)
-			iommu_release_ownership(tbl);
-
-		container->tables[i] = NULL;
-	}
-}
-
-static int tce_iommu_take_ownership(struct tce_container *container,
-		struct iommu_table_group *table_group)
-{
-	int i, j, rc = 0;
-
-	for (i = 0; i < IOMMU_TABLE_GROUP_MAX_TABLES; ++i) {
-		struct iommu_table *tbl = table_group->tables[i];
-
-		if (!tbl || !tbl->it_map)
-			continue;
-
-		rc = iommu_take_ownership(tbl);
-		if (rc) {
-			for (j = 0; j < i; ++j)
-				iommu_release_ownership(
-						table_group->tables[j]);
-
-			return rc;
-		}
-	}
-
-	for (i = 0; i < IOMMU_TABLE_GROUP_MAX_TABLES; ++i)
-		container->tables[i] = table_group->tables[i];
-
-	return 0;
-}
-
-static void tce_iommu_release_ownership_ddw(struct tce_container *container,
-		struct iommu_table_group *table_group)
-{
 	long i;
 
 	if (!table_group->ops->unset_window) {
@@ -1246,23 +1200,13 @@ static void tce_iommu_release_ownership_ddw(struct tce_container *container,
 	for (i = 0; i < IOMMU_TABLE_GROUP_MAX_TABLES; ++i)
 		if (container->tables[i])
 			table_group->ops->unset_window(table_group, i);
-
-	table_group->ops->release_ownership(table_group);
 }
 
-static long tce_iommu_take_ownership_ddw(struct tce_container *container,
+static long tce_iommu_take_ownership(struct tce_container *container,
 		struct iommu_table_group *table_group)
 {
 	long i, ret = 0;
 
-	if (!table_group->ops->create_table || !table_group->ops->set_window ||
-			!table_group->ops->release_ownership) {
-		WARN_ON_ONCE(1);
-		return -EFAULT;
-	}
-
-	table_group->ops->take_ownership(table_group);
-
 	/* Set all windows to the new group */
 	for (i = 0; i < IOMMU_TABLE_GROUP_MAX_TABLES; ++i) {
 		struct iommu_table *tbl = container->tables[i];
@@ -1281,8 +1225,6 @@ release_exit:
 	for (i = 0; i < IOMMU_TABLE_GROUP_MAX_TABLES; ++i)
 		table_group->ops->unset_window(table_group, i);
 
-	table_group->ops->release_ownership(table_group);
-
 	return ret;
 }
 
@@ -1307,9 +1249,14 @@ static int tce_iommu_attach_group(void *iommu_data,
 		goto unlock_exit;
 	}
 
-	if (tce_groups_attached(container) && (!table_group->ops ||
-			!table_group->ops->take_ownership ||
-			!table_group->ops->release_ownership)) {
+	/* v2 requires full support of dynamic DMA windows */
+	if (container->v2 && table_group->max_dynamic_windows_supported == 0) {
+		ret = -EINVAL;
+		goto unlock_exit;
+	}
+
+	/* v1 reuses TCE tables and does not share them among PEs */
+	if (!container->v2 && tce_groups_attached(container)) {
 		ret = -EBUSY;
 		goto unlock_exit;
 	}
@@ -1344,29 +1291,15 @@ static int tce_iommu_attach_group(void *iommu_data,
 		goto unlock_exit;
 	}
 
-	if (!table_group->ops || !table_group->ops->take_ownership ||
-			!table_group->ops->release_ownership) {
-		if (container->v2) {
-			ret = -EPERM;
-			goto free_exit;
-		}
-		ret = tce_iommu_take_ownership(container, table_group);
-	} else {
-		if (!container->v2) {
-			ret = -EPERM;
-			goto free_exit;
-		}
-		ret = tce_iommu_take_ownership_ddw(container, table_group);
-		if (!tce_groups_attached(container) && !container->tables[0])
-			container->def_window_pending = true;
-	}
+	ret = tce_iommu_take_ownership(container, table_group);
+	if (!tce_groups_attached(container) && !container->tables[0])
+		container->def_window_pending = true;
 
 	if (!ret) {
 		tcegrp->grp = iommu_group;
 		list_add(&tcegrp->next, &container->group_list);
 	}
 
-free_exit:
 	if (ret && tcegrp)
 		kfree(tcegrp);
 
@@ -1405,10 +1338,7 @@ static void tce_iommu_detach_group(void *iommu_data,
 	table_group = iommu_group_get_iommudata(iommu_group);
 	BUG_ON(!table_group);
 
-	if (!table_group->ops || !table_group->ops->release_ownership)
-		tce_iommu_release_ownership(container, table_group);
-	else
-		tce_iommu_release_ownership_ddw(container, table_group);
+	tce_iommu_release_ownership(container, table_group);
 
 unlock_exit:
 	mutex_unlock(&container->lock);