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
  ...

10 files changed, 63 insertions, 67 deletions

diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c
index 080108d129ed..18447e5fa17d 100644
--- a/arch/powerpc/platforms/pseries/firmware.c
+++ b/arch/powerpc/platforms/pseries/firmware.c
@@ -68,6 +68,7 @@ hypertas_fw_features_table[] = {
 	{FW_FEATURE_RPT_INVALIDATE,	"hcall-rpt-invalidate"},
 	{FW_FEATURE_ENERGY_SCALE_INFO,	"hcall-energy-scale-info"},
 	{FW_FEATURE_WATCHDOG,		"hcall-watchdog"},
+	{FW_FEATURE_PLPKS,		"hcall-pks"},
 };
 
 /* Build up the firmware features bitmask using the contents of
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index 982e5e4b5e06..1a3cb313976a 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -493,7 +493,7 @@ static bool valid_cpu_drc_index(struct device_node *parent, u32 drc_index)
 	bool found = false;
 	int rc, index;
 
-	if (of_find_property(parent, "ibm,drc-info", NULL))
+	if (of_property_present(parent, "ibm,drc-info"))
 		return drc_info_valid_index(parent, drc_index);
 
 	/* Note that the format of the ibm,drc-indexes array is
diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 2e3a317722a8..9c62c2c3b3d0 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -311,11 +311,8 @@ out:
 
 static int pseries_remove_mem_node(struct device_node *np)
 {
-	const __be32 *prop;
-	unsigned long base;
-	unsigned long lmb_size;
-	int ret = -EINVAL;
-	int addr_cells, size_cells;
+	int ret;
+	struct resource res;
 
 	/*
 	 * Check to see if we are actually removing memory
@@ -326,21 +323,11 @@ static int pseries_remove_mem_node(struct device_node *np)
 	/*
 	 * Find the base address and size of the memblock
 	 */
-	prop = of_get_property(np, "reg", NULL);
-	if (!prop)
+	ret = of_address_to_resource(np, 0, &res);
+	if (ret)
 		return ret;
 
-	addr_cells = of_n_addr_cells(np);
-	size_cells = of_n_size_cells(np);
-
-	/*
-	 * "reg" property represents (addr,size) tuple.
-	 */
-	base = of_read_number(prop, addr_cells);
-	prop += addr_cells;
-	lmb_size = of_read_number(prop, size_cells);
-
-	pseries_remove_memblock(base, lmb_size);
+	pseries_remove_memblock(res.start, resource_size(&res));
 	return 0;
 }
 
@@ -929,11 +916,8 @@ int dlpar_memory(struct pseries_hp_errorlog *hp_elog)
 
 static int pseries_add_mem_node(struct device_node *np)
 {
-	const __be32 *prop;
-	unsigned long base;
-	unsigned long lmb_size;
-	int ret = -EINVAL;
-	int addr_cells, size_cells;
+	int ret;
+	struct resource res;
 
 	/*
 	 * Check to see if we are actually adding memory
@@ -944,23 +928,14 @@ static int pseries_add_mem_node(struct device_node *np)
 	/*
 	 * Find the base and size of the memblock
 	 */
-	prop = of_get_property(np, "reg", NULL);
-	if (!prop)
+	ret = of_address_to_resource(np, 0, &res);
+	if (ret)
 		return ret;
 
-	addr_cells = of_n_addr_cells(np);
-	size_cells = of_n_size_cells(np);
-	/*
-	 * "reg" property represents (addr,size) tuple.
-	 */
-	base = of_read_number(prop, addr_cells);
-	prop += addr_cells;
-	lmb_size = of_read_number(prop, size_cells);
-
 	/*
 	 * Update memory region to represent the memory add
 	 */
-	ret = memblock_add(base, lmb_size);
+	ret = memblock_add(res.start, resource_size(&res));
 	return (ret < 0) ? -EINVAL : 0;
 }
 
diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index 783c16ad648b..35254ac7af5e 100644
--- a/arch/powerpc/platforms/pseries/hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
@@ -44,7 +44,7 @@ hcall_tracepoint_refcount:
 	std	r0,16(r1);					\
 	addi	r4,r1,STK_PARAM(FIRST_REG);			\
 	stdu	r1,-STACK_FRAME_MIN_SIZE(r1);			\
-	bl	__trace_hcall_entry;				\
+	bl	CFUNC(__trace_hcall_entry);			\
 	ld	r3,STACK_FRAME_MIN_SIZE+STK_PARAM(R3)(r1);	\
 	ld	r4,STACK_FRAME_MIN_SIZE+STK_PARAM(R4)(r1);	\
 	ld	r5,STACK_FRAME_MIN_SIZE+STK_PARAM(R5)(r1);	\
@@ -63,7 +63,7 @@ hcall_tracepoint_refcount:
 	std	r3,STACK_FRAME_MIN_SIZE+STK_PARAM(R3)(r1);	\
 	mr	r4,r3;						\
 	mr	r3,r0;						\
-	bl	__trace_hcall_exit;				\
+	bl	CFUNC(__trace_hcall_exit);			\
 	ld	r0,STACK_FRAME_MIN_SIZE+16(r1);			\
 	addi	r1,r1,STACK_FRAME_MIN_SIZE;			\
 	ld	r3,STK_PARAM(R3)(r1);				\
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index c74b71d4733d..7464fa6e4145 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -22,6 +22,7 @@
 #include <linux/crash_dump.h>
 #include <linux/memory.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/iommu.h>
 #include <linux/rculist.h>
 #include <asm/io.h>
@@ -74,6 +75,11 @@ static struct iommu_table_group *iommu_pseries_alloc_group(int node)
 	if (!table_group)
 		return NULL;
 
+#ifdef CONFIG_IOMMU_API
+	table_group->ops = &spapr_tce_table_group_ops;
+	table_group->pgsizes = SZ_4K;
+#endif
+
 	table_group->tables[0] = iommu_pseries_alloc_table(node);
 	if (table_group->tables[0])
 		return table_group;
@@ -474,7 +480,7 @@ static int tce_setrange_multi_pSeriesLP(unsigned long start_pfn,
 		 * Set up the page with TCE data, looping through and setting
 		 * the values.
 		 */
-		limit = min_t(long, num_tce, 4096/TCE_ENTRY_SIZE);
+		limit = min_t(long, num_tce, 4096 / TCE_ENTRY_SIZE);
 		dma_offset = next + be64_to_cpu(maprange->dma_base);
 
 		for (l = 0; l < limit; l++) {
@@ -1111,27 +1117,16 @@ static LIST_HEAD(failed_ddw_pdn_list);
 
 static phys_addr_t ddw_memory_hotplug_max(void)
 {
-	phys_addr_t max_addr = memory_hotplug_max();
+	resource_size_t max_addr = memory_hotplug_max();
 	struct device_node *memory;
 
 	for_each_node_by_type(memory, "memory") {
-		unsigned long start, size;
-		int n_mem_addr_cells, n_mem_size_cells, len;
-		const __be32 *memcell_buf;
+		struct resource res;
 
-		memcell_buf = of_get_property(memory, "reg", &len);
-		if (!memcell_buf || len <= 0)
+		if (of_address_to_resource(memory, 0, &res))
 			continue;
 
-		n_mem_addr_cells = of_n_addr_cells(memory);
-		n_mem_size_cells = of_n_size_cells(memory);
-
-		start = of_read_number(memcell_buf, n_mem_addr_cells);
-		memcell_buf += n_mem_addr_cells;
-		size = of_read_number(memcell_buf, n_mem_size_cells);
-		memcell_buf += n_mem_size_cells;
-
-		max_addr = max_t(phys_addr_t, max_addr, start + size);
+		max_addr = max_t(resource_size_t, max_addr, res.end + 1);
 	}
 
 	return max_addr;
@@ -1724,3 +1719,27 @@ static int __init tce_iommu_bus_notifier_init(void)
 	return 0;
 }
 machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init);
+
+#ifdef CONFIG_SPAPR_TCE_IOMMU
+struct iommu_group *pSeries_pci_device_group(struct pci_controller *hose,
+					     struct pci_dev *pdev)
+{
+	struct device_node *pdn, *dn = pdev->dev.of_node;
+	struct iommu_group *grp;
+	struct pci_dn *pci;
+
+	pdn = pci_dma_find(dn, NULL);
+	if (!pdn || !PCI_DN(pdn))
+		return ERR_PTR(-ENODEV);
+
+	pci = PCI_DN(pdn);
+	if (!pci->table_group)
+		return ERR_PTR(-ENODEV);
+
+	grp = pci->table_group->group;
+	if (!grp)
+		return ERR_PTR(-ENODEV);
+
+	return iommu_group_ref_get(grp);
+}
+#endif
diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c
index 6b25642adfa0..6f30113b5468 100644
--- a/arch/powerpc/platforms/pseries/mobility.c
+++ b/arch/powerpc/platforms/pseries/mobility.c
@@ -62,18 +62,10 @@ static struct ctl_table nmi_wd_lpm_factor_ctl_table[] = {
 	},
 	{}
 };
-static struct ctl_table nmi_wd_lpm_factor_sysctl_root[] = {
-	{
-		.procname       = "kernel",
-		.mode           = 0555,
-		.child          = nmi_wd_lpm_factor_ctl_table,
-	},
-	{}
-};
 
 static int __init register_nmi_wd_lpm_factor_sysctl(void)
 {
-	register_sysctl_table(nmi_wd_lpm_factor_sysctl_root);
+	register_sysctl("kernel", nmi_wd_lpm_factor_ctl_table);
 
 	return 0;
 }
diff --git a/arch/powerpc/platforms/pseries/plpks.c b/arch/powerpc/platforms/pseries/plpks.c
index 6f7bf3fc3aea..b0658ea3eccb 100644
--- a/arch/powerpc/platforms/pseries/plpks.c
+++ b/arch/powerpc/platforms/pseries/plpks.c
@@ -378,7 +378,7 @@ bool plpks_is_available(void)
 {
 	int rc;
 
-	if (!firmware_has_feature(FW_FEATURE_LPAR))
+	if (!firmware_has_feature(FW_FEATURE_PLPKS))
 		return false;
 
 	rc = _plpks_get_config();
@@ -690,6 +690,9 @@ static __init int pseries_plpks_init(void)
 {
 	int rc;
 
+	if (!firmware_has_feature(FW_FEATURE_PLPKS))
+		return -ENODEV;
+
 	rc = _plpks_get_config();
 
 	if (rc) {
diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h
index 1d75b7742ef0..f8bce40ebd0c 100644
--- a/arch/powerpc/platforms/pseries/pseries.h
+++ b/arch/powerpc/platforms/pseries/pseries.h
@@ -123,5 +123,9 @@ static inline void pseries_lpar_read_hblkrm_characteristics(void) { }
 #endif
 
 void pseries_rng_init(void);
+#ifdef CONFIG_SPAPR_TCE_IOMMU
+struct iommu_group *pSeries_pci_device_group(struct pci_controller *hose,
+					     struct pci_dev *pdev);
+#endif
 
 #endif /* _PSERIES_PSERIES_H */
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 4a0cec8cf623..e2a57cfa6c83 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -1118,6 +1118,9 @@ static int pSeries_pci_probe_mode(struct pci_bus *bus)
 
 struct pci_controller_ops pseries_pci_controller_ops = {
 	.probe_mode		= pSeries_pci_probe_mode,
+#ifdef CONFIG_SPAPR_TCE_IOMMU
+	.device_group		= pSeries_pci_device_group,
+#endif
 };
 
 define_machine(pseries) {
@@ -1135,7 +1138,6 @@ define_machine(pseries) {
 	.get_boot_time		= rtas_get_boot_time,
 	.get_rtc_time		= rtas_get_rtc_time,
 	.set_rtc_time		= rtas_set_rtc_time,
-	.calibrate_decr		= generic_calibrate_decr,
 	.progress		= rtas_progress,
 	.system_reset_exception = pSeries_system_reset_exception,
 	.machine_check_early	= pseries_machine_check_realmode,
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
index bf7aff6390be..2dc9cbc4bcd8 100644
--- a/arch/powerpc/platforms/pseries/vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -1381,7 +1381,7 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
 	}
 
 	if (family == PFO) {
-		if (of_get_property(of_node, "interrupt-controller", NULL)) {
+		if (of_property_read_bool(of_node, "interrupt-controller")) {
 			pr_debug("%s: Skipping the interrupt controller %pOFn.\n",
 					__func__, of_node);
 			return NULL;
@@ -1440,7 +1440,7 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
 	viodev->dev.bus = &vio_bus_type;
 	viodev->dev.release = vio_dev_release;
 
-	if (of_get_property(viodev->dev.of_node, "ibm,my-dma-window", NULL)) {
+	if (of_property_present(viodev->dev.of_node, "ibm,my-dma-window")) {
 		if (firmware_has_feature(FW_FEATURE_CMO))
 			vio_cmo_set_dma_ops(viodev);
 		else