Merge tag 'powerpc-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Add AT_HWCAP3 and AT_HWCAP4 aux vector entries for future use
   by glibc

 - Add support for recognising the Power11 architected and raw PVRs

 - Add support for nr_cpus=n on the command line where the
   boot CPU is >= n

 - Add ppcxx_allmodconfig targets for all 32-bit sub-arches

 - Other small features, cleanups and fixes

Thanks to Akanksha J N, Brian King, Christophe Leroy, Dawei Li, Geoff
Levand, Greg Kroah-Hartman, Jan-Benedict Glaw, Kajol Jain, Kunwu Chan,
Li zeming, Madhavan Srinivasan, Masahiro Yamada, Nathan Chancellor,
Nicholas Piggin, Peter Bergner, Qiheng Lin, Randy Dunlap, Ricardo B.
Marliere, Rob Herring, Sathvika Vasireddy, Shrikanth Hegde, Uwe
Kleine-König, Vaibhav Jain, and Wen Xiong.

* tag 'powerpc-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (71 commits)
  powerpc/macio: Make remove callback of macio driver void returned
  powerpc/83xx: Fix build failure with FPU=n
  powerpc/64s: Fix get_hugepd_cache_index() build failure
  powerpc/4xx: Fix warp_gpio_leds build failure
  powerpc/amigaone: Make several functions static
  powerpc/embedded6xx: Fix no previous prototype for avr_uart_send() etc.
  macintosh/adb: make adb_dev_class constant
  powerpc: xor_vmx: Add '-mhard-float' to CFLAGS
  powerpc/fsl: Fix mfpmr() asm constraint error
  powerpc: Remove cpu-as-y completely
  powerpc/fsl: Modernise mt/mfpmr
  powerpc/fsl: Fix mfpmr build errors with newer binutils
  powerpc/64s: Use .machine power4 around dcbt
  powerpc/64s: Move dcbt/dcbtst sequence into a macro
  powerpc/mm: Code cleanup for __hash_page_thp
  powerpc/hv-gpci: Fix the H_GET_PERF_COUNTER_INFO hcall return value checks
  powerpc/irq: Allow softirq to hardirq stack transition
  powerpc: Stop using of_root
  powerpc/machdep: Define 'compatibles' property in ppc_md and use it
  of: Reimplement of_machine_is_compatible() using of_machine_compatible_match()
  ...

32 files changed, 270 insertions, 264 deletions

diff --git a/arch/powerpc/platforms/40x/ppc40x_simple.c b/arch/powerpc/platforms/40x/ppc40x_simple.c
index e454e9d2eff1..294ab2728588 100644
--- a/arch/powerpc/platforms/40x/ppc40x_simple.c
+++ b/arch/powerpc/platforms/40x/ppc40x_simple.c
@@ -59,16 +59,13 @@ static const char * const board[] __initconst = {
 
 static int __init ppc40x_probe(void)
 {
-	if (of_device_compatible_match(of_root, board)) {
-		pci_set_flags(PCI_REASSIGN_ALL_RSRC);
-		return 1;
-	}
-
-	return 0;
+	pci_set_flags(PCI_REASSIGN_ALL_RSRC);
+	return 1;
 }
 
 define_machine(ppc40x_simple) {
 	.name = "PowerPC 40x Platform",
+	.compatibles = board,
 	.probe = ppc40x_probe,
 	.progress = udbg_progress,
 	.init_IRQ = uic_init_tree,
diff --git a/arch/powerpc/platforms/44x/warp.c b/arch/powerpc/platforms/44x/warp.c
index bf0188dcb918..a5001d32f978 100644
--- a/arch/powerpc/platforms/44x/warp.c
+++ b/arch/powerpc/platforms/44x/warp.c
@@ -8,6 +8,7 @@
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/of_platform.h>
+#include <linux/platform_device.h>
 #include <linux/kthread.h>
 #include <linux/leds.h>
 #include <linux/i2c.h>
diff --git a/arch/powerpc/platforms/512x/mpc512x_generic.c b/arch/powerpc/platforms/512x/mpc512x_generic.c
index 0d58ab257cd9..d4fa6c302ccf 100644
--- a/arch/powerpc/platforms/512x/mpc512x_generic.c
+++ b/arch/powerpc/platforms/512x/mpc512x_generic.c
@@ -32,9 +32,6 @@ static const char * const board[] __initconst = {
  */
 static int __init mpc512x_generic_probe(void)
 {
-	if (!of_device_compatible_match(of_root, board))
-		return 0;
-
 	mpc512x_init_early();
 
 	return 1;
@@ -42,6 +39,7 @@ static int __init mpc512x_generic_probe(void)
 
 define_machine(mpc512x_generic) {
 	.name			= "MPC512x generic",
+	.compatibles		= board,
 	.probe			= mpc512x_generic_probe,
 	.init			= mpc512x_init,
 	.setup_arch		= mpc512x_setup_arch,
diff --git a/arch/powerpc/platforms/52xx/efika.c b/arch/powerpc/platforms/52xx/efika.c
index aa82e6b437f3..37a67120f257 100644
--- a/arch/powerpc/platforms/52xx/efika.c
+++ b/arch/powerpc/platforms/52xx/efika.c
@@ -195,8 +195,10 @@ static void __init efika_setup_arch(void)
 
 static int __init efika_probe(void)
 {
-	const char *model = of_get_property(of_root, "model", NULL);
+	struct device_node *root = of_find_node_by_path("/");
+	const char *model = of_get_property(root, "model", NULL);
 
+	of_node_put(root);
 	if (model == NULL)
 		return 0;
 	if (strcmp(model, "EFIKA5K2"))
diff --git a/arch/powerpc/platforms/52xx/lite5200.c b/arch/powerpc/platforms/52xx/lite5200.c
index 0fd67b3ffc3e..0a161d82a3a8 100644
--- a/arch/powerpc/platforms/52xx/lite5200.c
+++ b/arch/powerpc/platforms/52xx/lite5200.c
@@ -172,17 +172,9 @@ static const char * const board[] __initconst = {
 	NULL,
 };
 
-/*
- * Called very early, MMU is off, device-tree isn't unflattened
- */
-static int __init lite5200_probe(void)
-{
-	return of_device_compatible_match(of_root, board);
-}
-
 define_machine(lite5200) {
 	.name 		= "lite5200",
-	.probe 		= lite5200_probe,
+	.compatibles	= board,
 	.setup_arch 	= lite5200_setup_arch,
 	.discover_phbs	= mpc52xx_setup_pci,
 	.init		= mpc52xx_declare_of_platform_devices,
diff --git a/arch/powerpc/platforms/52xx/mpc5200_simple.c b/arch/powerpc/platforms/52xx/mpc5200_simple.c
index f1e85e86f5e5..7e0e4c34a40b 100644
--- a/arch/powerpc/platforms/52xx/mpc5200_simple.c
+++ b/arch/powerpc/platforms/52xx/mpc5200_simple.c
@@ -59,17 +59,9 @@ static const char *board[] __initdata = {
 	NULL
 };
 
-/*
- * Called very early, MMU is off, device-tree isn't unflattened
- */
-static int __init mpc5200_simple_probe(void)
-{
-	return of_device_compatible_match(of_root, board);
-}
-
 define_machine(mpc5200_simple_platform) {
 	.name		= "mpc5200-simple-platform",
-	.probe		= mpc5200_simple_probe,
+	.compatibles	= board,
 	.setup_arch	= mpc5200_simple_setup_arch,
 	.discover_phbs	= mpc52xx_setup_pci,
 	.init		= mpc52xx_declare_of_platform_devices,
diff --git a/arch/powerpc/platforms/83xx/mpc830x_rdb.c b/arch/powerpc/platforms/83xx/mpc830x_rdb.c
index 534bb227480d..63b6d213726a 100644
--- a/arch/powerpc/platforms/83xx/mpc830x_rdb.c
+++ b/arch/powerpc/platforms/83xx/mpc830x_rdb.c
@@ -34,19 +34,11 @@ static const char *board[] __initdata = {
 	NULL
 };
 
-/*
- * Called very early, MMU is off, device-tree isn't unflattened
- */
-static int __init mpc830x_rdb_probe(void)
-{
-	return of_device_compatible_match(of_root, board);
-}
-
 machine_device_initcall(mpc830x_rdb, mpc83xx_declare_of_platform_devices);
 
 define_machine(mpc830x_rdb) {
 	.name			= "MPC830x RDB",
-	.probe			= mpc830x_rdb_probe,
+	.compatibles		= board,
 	.setup_arch		= mpc830x_rdb_setup_arch,
 	.discover_phbs		= mpc83xx_setup_pci,
 	.init_IRQ		= mpc83xx_ipic_init_IRQ,
diff --git a/arch/powerpc/platforms/83xx/mpc831x_rdb.c b/arch/powerpc/platforms/83xx/mpc831x_rdb.c
index 7b901ab3b864..5c39966762e4 100644
--- a/arch/powerpc/platforms/83xx/mpc831x_rdb.c
+++ b/arch/powerpc/platforms/83xx/mpc831x_rdb.c
@@ -34,19 +34,11 @@ static const char *board[] __initdata = {
 	NULL
 };
 
-/*
- * Called very early, MMU is off, device-tree isn't unflattened
- */
-static int __init mpc831x_rdb_probe(void)
-{
-	return of_device_compatible_match(of_root, board);
-}
-
 machine_device_initcall(mpc831x_rdb, mpc83xx_declare_of_platform_devices);
 
 define_machine(mpc831x_rdb) {
 	.name			= "MPC831x RDB",
-	.probe			= mpc831x_rdb_probe,
+	.compatibles		= board,
 	.setup_arch		= mpc831x_rdb_setup_arch,
 	.discover_phbs		= mpc83xx_setup_pci,
 	.init_IRQ		= mpc83xx_ipic_init_IRQ,
diff --git a/arch/powerpc/platforms/83xx/mpc837x_rdb.c b/arch/powerpc/platforms/83xx/mpc837x_rdb.c
index 39e78018dd0b..45823e147933 100644
--- a/arch/powerpc/platforms/83xx/mpc837x_rdb.c
+++ b/arch/powerpc/platforms/83xx/mpc837x_rdb.c
@@ -61,17 +61,9 @@ static const char * const board[] __initconst = {
 	NULL
 };
 
-/*
- * Called very early, MMU is off, device-tree isn't unflattened
- */
-static int __init mpc837x_rdb_probe(void)
-{
-	return of_device_compatible_match(of_root, board);
-}
-
 define_machine(mpc837x_rdb) {
 	.name			= "MPC837x RDB/WLAN",
-	.probe			= mpc837x_rdb_probe,
+	.compatibles		= board,
 	.setup_arch		= mpc837x_rdb_setup_arch,
 	.discover_phbs  	= mpc83xx_setup_pci,
 	.init_IRQ		= mpc83xx_ipic_init_IRQ,
diff --git a/arch/powerpc/platforms/83xx/suspend.c b/arch/powerpc/platforms/83xx/suspend.c
index c9664e46b03d..99bd4355f28e 100644
--- a/arch/powerpc/platforms/83xx/suspend.c
+++ b/arch/powerpc/platforms/83xx/suspend.c
@@ -206,7 +206,8 @@ static int mpc83xx_suspend_enter(suspend_state_t state)
 		out_be32(&pmc_regs->config1,
 		         in_be32(&pmc_regs->config1) | PMCCR1_POWER_OFF);
 
-		enable_kernel_fp();
+		if (IS_ENABLED(CONFIG_PPC_FPU))
+			enable_kernel_fp();
 
 		mpc83xx_enter_deep_sleep(immrbase);
 
diff --git a/arch/powerpc/platforms/85xx/bsc913x_qds.c b/arch/powerpc/platforms/85xx/bsc913x_qds.c
index 2eb62bff86d4..3ad8096fcf16 100644
--- a/arch/powerpc/platforms/85xx/bsc913x_qds.c
+++ b/arch/powerpc/platforms/85xx/bsc913x_qds.c
@@ -19,7 +19,7 @@
 #include "mpc85xx.h"
 #include "smp.h"
 
-void __init bsc913x_qds_pic_init(void)
+static void __init bsc913x_qds_pic_init(void)
 {
 	struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN |
 	  MPIC_SINGLE_DEST_CPU,
diff --git a/arch/powerpc/platforms/85xx/bsc913x_rdb.c b/arch/powerpc/platforms/85xx/bsc913x_rdb.c
index 161f006cb3bb..dcd358c28201 100644
--- a/arch/powerpc/platforms/85xx/bsc913x_rdb.c
+++ b/arch/powerpc/platforms/85xx/bsc913x_rdb.c
@@ -15,7 +15,7 @@
 
 #include "mpc85xx.h"
 
-void __init bsc913x_rdb_pic_init(void)
+static void __init bsc913x_rdb_pic_init(void)
 {
 	struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN |
 	  MPIC_SINGLE_DEST_CPU,
diff --git a/arch/powerpc/platforms/85xx/corenet_generic.c b/arch/powerpc/platforms/85xx/corenet_generic.c
index 645fcca77cde..c44400e95f55 100644
--- a/arch/powerpc/platforms/85xx/corenet_generic.c
+++ b/arch/powerpc/platforms/85xx/corenet_generic.c
@@ -149,7 +149,7 @@ static int __init corenet_generic_probe(void)
 	extern struct smp_ops_t smp_85xx_ops;
 #endif
 
-	if (of_device_compatible_match(of_root, boards))
+	if (of_machine_compatible_match(boards))
 		return 1;
 
 	/* Check if we're running under the Freescale hypervisor */
diff --git a/arch/powerpc/platforms/85xx/ge_imp3a.c b/arch/powerpc/platforms/85xx/ge_imp3a.c
index 9c3b44a1952e..477852f1a726 100644
--- a/arch/powerpc/platforms/85xx/ge_imp3a.c
+++ b/arch/powerpc/platforms/85xx/ge_imp3a.c
@@ -38,7 +38,7 @@
 
 void __iomem *imp3a_regs;
 
-void __init ge_imp3a_pic_init(void)
+static void __init ge_imp3a_pic_init(void)
 {
 	struct mpic *mpic;
 	struct device_node *np;
diff --git a/arch/powerpc/platforms/85xx/sgy_cts1000.c b/arch/powerpc/platforms/85xx/sgy_cts1000.c
index 751395cbf022..34ce21f42623 100644
--- a/arch/powerpc/platforms/85xx/sgy_cts1000.c
+++ b/arch/powerpc/platforms/85xx/sgy_cts1000.c
@@ -114,7 +114,7 @@ static int gpio_halt_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int gpio_halt_remove(struct platform_device *pdev)
+static void gpio_halt_remove(struct platform_device *pdev)
 {
 	free_irq(halt_irq, pdev);
 	cancel_work_sync(&gpio_halt_wq);
@@ -124,8 +124,6 @@ static int gpio_halt_remove(struct platform_device *pdev)
 
 	gpiod_put(halt_gpio);
 	halt_gpio = NULL;
-
-	return 0;
 }
 
 static const struct of_device_id gpio_halt_match[] = {
@@ -145,7 +143,7 @@ static struct platform_driver gpio_halt_driver = {
 		.of_match_table = gpio_halt_match,
 	},
 	.probe		= gpio_halt_probe,
-	.remove		= gpio_halt_remove,
+	.remove_new	= gpio_halt_remove,
 };
 
 module_platform_driver(gpio_halt_driver);
diff --git a/arch/powerpc/platforms/85xx/tqm85xx.c b/arch/powerpc/platforms/85xx/tqm85xx.c
index 6be1b9809db6..f74d446c53f0 100644
--- a/arch/powerpc/platforms/85xx/tqm85xx.c
+++ b/arch/powerpc/platforms/85xx/tqm85xx.c
@@ -112,17 +112,9 @@ static const char * const board[] __initconst = {
 	NULL
 };
 
-/*
- * Called very early, device-tree isn't unflattened
- */
-static int __init tqm85xx_probe(void)
-{
-	return of_device_compatible_match(of_root, board);
-}
-
 define_machine(tqm85xx) {
 	.name			= "TQM85xx",
-	.probe			= tqm85xx_probe,
+	.compatibles		= board,
 	.setup_arch		= tqm85xx_setup_arch,
 	.init_IRQ		= tqm85xx_pic_init,
 	.show_cpuinfo		= tqm85xx_show_cpuinfo,
diff --git a/arch/powerpc/platforms/amigaone/setup.c b/arch/powerpc/platforms/amigaone/setup.c
index 6c6e714a7521..2c8dc0886912 100644
--- a/arch/powerpc/platforms/amigaone/setup.c
+++ b/arch/powerpc/platforms/amigaone/setup.c
@@ -25,7 +25,7 @@
 
 extern void __flush_disable_L1(void);
 
-void amigaone_show_cpuinfo(struct seq_file *m)
+static void amigaone_show_cpuinfo(struct seq_file *m)
 {
 	seq_printf(m, "vendor\t\t: Eyetech Ltd.\n");
 }
@@ -65,7 +65,7 @@ static int __init amigaone_add_bridge(struct device_node *dev)
 	return 0;
 }
 
-void __init amigaone_setup_arch(void)
+static void __init amigaone_setup_arch(void)
 {
 	if (ppc_md.progress)
 		ppc_md.progress("Linux/PPC "UTS_RELEASE"\n", 0);
@@ -83,7 +83,7 @@ static void __init amigaone_discover_phbs(void)
 	BUG_ON(phb != 0);
 }
 
-void __init amigaone_init_IRQ(void)
+static void __init amigaone_init_IRQ(void)
 {
 	struct device_node *pic, *np = NULL;
 	const unsigned long *prop = NULL;
@@ -123,7 +123,7 @@ static int __init request_isa_regions(void)
 }
 machine_device_initcall(amigaone, request_isa_regions);
 
-void __noreturn amigaone_restart(char *cmd)
+static void __noreturn amigaone_restart(char *cmd)
 {
 	local_irq_disable();
 
diff --git a/arch/powerpc/platforms/embedded6xx/linkstation.c b/arch/powerpc/platforms/embedded6xx/linkstation.c
index 9c10aac40c7b..e265f026eee2 100644
--- a/arch/powerpc/platforms/embedded6xx/linkstation.c
+++ b/arch/powerpc/platforms/embedded6xx/linkstation.c
@@ -99,9 +99,6 @@ static void __init linkstation_init_IRQ(void)
 	mpic_init(mpic);
 }
 
-extern void avr_uart_configure(void);
-extern void avr_uart_send(const char);
-
 static void __noreturn linkstation_restart(char *cmd)
 {
 	local_irq_disable();
diff --git a/arch/powerpc/platforms/embedded6xx/mpc10x.h b/arch/powerpc/platforms/embedded6xx/mpc10x.h
index 5ad12023e562..ebc258fa4858 100644
--- a/arch/powerpc/platforms/embedded6xx/mpc10x.h
+++ b/arch/powerpc/platforms/embedded6xx/mpc10x.h
@@ -156,4 +156,7 @@ int mpc10x_disable_store_gathering(struct pci_controller *hose);
 /* For MPC107 boards that use the built-in openpic */
 void mpc10x_set_openpic(void);
 
+void avr_uart_configure(void);
+void avr_uart_send(const char c);
+
 #endif	/* __PPC_KERNEL_MPC10X_H */
diff --git a/arch/powerpc/platforms/pasemi/gpio_mdio.c b/arch/powerpc/platforms/pasemi/gpio_mdio.c
index fd130fe7a65a..4e983af32949 100644
--- a/arch/powerpc/platforms/pasemi/gpio_mdio.c
+++ b/arch/powerpc/platforms/pasemi/gpio_mdio.c
@@ -260,7 +260,7 @@ out:
 }
 
 
-static int gpio_mdio_remove(struct platform_device *dev)
+static void gpio_mdio_remove(struct platform_device *dev)
 {
 	struct mii_bus *bus = dev_get_drvdata(&dev->dev);
 
@@ -271,8 +271,6 @@ static int gpio_mdio_remove(struct platform_device *dev)
 	kfree(bus->priv);
 	bus->priv = NULL;
 	mdiobus_free(bus);
-
-	return 0;
 }
 
 static const struct of_device_id gpio_mdio_match[] =
@@ -287,7 +285,7 @@ MODULE_DEVICE_TABLE(of, gpio_mdio_match);
 static struct platform_driver gpio_mdio_driver =
 {
 	.probe		= gpio_mdio_probe,
-	.remove		= gpio_mdio_remove,
+	.remove_new	= gpio_mdio_remove,
 	.driver = {
 		.name = "gpio-mdio-bitbang",
 		.of_match_table = gpio_mdio_match,
diff --git a/arch/powerpc/platforms/pasemi/pci.c b/arch/powerpc/platforms/pasemi/pci.c
index f27d31414737..60f990a336c4 100644
--- a/arch/powerpc/platforms/pasemi/pci.c
+++ b/arch/powerpc/platforms/pasemi/pci.c
@@ -270,16 +270,18 @@ static int __init pas_add_bridge(struct device_node *dev)
 
 void __init pas_pci_init(void)
 {
+	struct device_node *root = of_find_node_by_path("/");
 	struct device_node *np;
 	int res;
 
 	pci_set_flags(PCI_SCAN_ALL_PCIE_DEVS);
 
-	np = of_find_compatible_node(of_root, NULL, "pasemi,rootbus");
+	np = of_find_compatible_node(root, NULL, "pasemi,rootbus");
 	if (np) {
 		res = pas_add_bridge(np);
 		of_node_put(np);
 	}
+	of_node_put(root);
 }
 
 void __iomem *__init pasemi_pci_getcfgaddr(struct pci_dev *dev, int offset)
diff --git a/arch/powerpc/platforms/powermac/Kconfig b/arch/powerpc/platforms/powermac/Kconfig
index 8bdae0caf21e..84f101ec53a9 100644
--- a/arch/powerpc/platforms/powermac/Kconfig
+++ b/arch/powerpc/platforms/powermac/Kconfig
@@ -2,7 +2,7 @@
 config PPC_PMAC
 	bool "Apple PowerMac based machines"
 	depends on PPC_BOOK3S && CPU_BIG_ENDIAN
-	select ADB_CUDA if POWER_RESET && PPC32
+	select ADB_CUDA if POWER_RESET && ADB
 	select MPIC
 	select FORCE_PCI
 	select PPC_INDIRECT_PCI if PPC32
diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
index 81c9fbae88b1..2cc257f75c50 100644
--- a/arch/powerpc/platforms/powermac/feature.c
+++ b/arch/powerpc/platforms/powermac/feature.c
@@ -2333,7 +2333,6 @@ static struct pmac_mb_def pmac_mb_defs[] = {
 		PMAC_TYPE_POWERMAC_G5,		g5_features,
 		0,
 	},
-#ifdef CONFIG_PPC64
 	{	"PowerMac7,3",			"PowerMac G5",
 		PMAC_TYPE_POWERMAC_G5,		g5_features,
 		0,
@@ -2359,7 +2358,6 @@ static struct pmac_mb_def pmac_mb_defs[] = {
 		0,
 	},
 #endif /* CONFIG_PPC64 */
-#endif /* CONFIG_PPC64 */
 };
 
 /*
diff --git a/arch/powerpc/platforms/powernv/opal-prd.c b/arch/powerpc/platforms/powernv/opal-prd.c
index b66b06efcef1..24f04f20d3e8 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_new = opal_prd_remove,
 };
 
 module_platform_driver(opal_prd_driver);
diff --git a/arch/powerpc/platforms/ps3/hvcall.S b/arch/powerpc/platforms/ps3/hvcall.S
index 509e30ad01bb..e8ab3d6b03bd 100644
--- a/arch/powerpc/platforms/ps3/hvcall.S
+++ b/arch/powerpc/platforms/ps3/hvcall.S
@@ -9,6 +9,7 @@
 
 #include <asm/processor.h>
 #include <asm/ppc_asm.h>
+#include <asm/ptrace.h>
 
 #define lv1call .long 0x44000022; extsw r3, r3
 
@@ -16,12 +17,14 @@
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
+	stdu    r1, -STACK_FRAME_MIN_SIZE(r1);	\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE;	\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -38,18 +41,19 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
-	stdu    r3, -8(r1);			\
+	std	r3, -8(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-8(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 8;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+8;	\
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -57,21 +61,22 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r3, -8(r1);			\
-	stdu	r4, -16(r1);			\
+	std	r4, -16(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-16(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 16;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+16; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
 	std	r5, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -79,16 +84,17 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r3, -8(r1);			\
 	std	r4, -16(r1);			\
-	stdu	r5, -24(r1);			\
+	std	r5, -24(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-24(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 24;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+24; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
@@ -96,7 +102,7 @@ _GLOBAL(_##API_NAME)				\
 	ld	r11, -24(r1);			\
 	std	r6, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -104,7 +110,7 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r3, -8(r1);			\
 	std	r4, -16(r1);			\
@@ -112,12 +118,13 @@ _GLOBAL(_##API_NAME)				\
 	std	r6, -32(r1);			\
 	std	r7, -40(r1);			\
 	std	r8, -48(r1);			\
-	stdu	r9, -56(r1);			\
+	std	r9, -56(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-56(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 56;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+56; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
@@ -133,7 +140,7 @@ _GLOBAL(_##API_NAME)				\
 	ld	r11, -56(r1);			\
 	std	r10, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -141,18 +148,19 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
-	stdu    r4, -8(r1);			\
+	std	r4, -8(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-8(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 8;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+8;	\
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -160,21 +168,22 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r4, -8(r1);			\
-	stdu	r5, -16(r1);			\
+	std	r5, -16(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-16(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 16;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+16; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
 	std	r5, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -182,16 +191,17 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r4, -8(r1);			\
 	std	r5, -16(r1);			\
-	stdu	r6, -24(r1);			\
+	std	r6, -24(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-24(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 24;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+24; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
@@ -199,7 +209,7 @@ _GLOBAL(_##API_NAME)				\
 	ld	r11, -24(r1);			\
 	std	r6, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -207,17 +217,18 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r4, -8(r1);			\
 	std	r5, -16(r1);			\
 	std	r6, -24(r1);			\
-	stdu	r7, -32(r1);			\
+	std	r7, -32(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-32(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 32;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+32; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
@@ -227,7 +238,7 @@ _GLOBAL(_##API_NAME)				\
 	ld	r11, -32(r1);			\
 	std	r7, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -235,18 +246,19 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r4, -8(r1);			\
 	std	r5, -16(r1);			\
 	std	r6, -24(r1);			\
 	std	r7, -32(r1);			\
-	stdu	r8, -40(r1);			\
+	std	r8, -40(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-40(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 40;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+40; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
@@ -258,7 +270,7 @@ _GLOBAL(_##API_NAME)				\
 	ld	r11, -40(r1);			\
 	std	r8, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -266,19 +278,20 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r4, -8(r1);			\
 	std	r5, -16(r1);			\
 	std	r6, -24(r1);			\
 	std	r7, -32(r1);			\
 	std	r8, -40(r1);			\
-	stdu	r9, -48(r1);			\
+	std	r9, -48(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-48(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 48;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+48; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
@@ -292,7 +305,7 @@ _GLOBAL(_##API_NAME)				\
 	ld	r11, -48(r1);			\
 	std	r9, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -300,7 +313,7 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r4, -8(r1);			\
 	std	r5, -16(r1);			\
@@ -308,12 +321,13 @@ _GLOBAL(_##API_NAME)				\
 	std	r7, -32(r1);			\
 	std	r8, -40(r1);			\
 	std	r9, -48(r1);			\
-	stdu	r10, -56(r1);			\
+	std	r10, -56(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-56(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 56;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+56; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
@@ -329,7 +343,7 @@ _GLOBAL(_##API_NAME)				\
 	ld	r11, -56(r1);			\
 	std	r10, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -337,18 +351,19 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
-	stdu	r5, -8(r1);			\
+	std	r5, -8(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-8(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 8;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+8;	\
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -356,21 +371,22 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r5, -8(r1);			\
-	stdu	r6, -16(r1);			\
+	std	r6, -16(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-16(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 16;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+16; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
 	std	r5, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -378,16 +394,17 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r5, -8(r1);			\
 	std	r6, -16(r1);			\
-	stdu	r7, -24(r1);			\
+	std	r7, -24(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-24(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 24;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+24; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
@@ -395,7 +412,7 @@ _GLOBAL(_##API_NAME)				\
 	ld	r11, -24(r1);			\
 	std	r6, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -403,17 +420,18 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r5, -8(r1);			\
 	std	r6, -16(r1);			\
 	std	r7, -24(r1);			\
-	stdu	r8, -32(r1);			\
+	std	r8, -32(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-32(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 32;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+32;\
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
@@ -423,7 +441,7 @@ _GLOBAL(_##API_NAME)				\
 	ld	r11, -32(r1);			\
 	std	r7, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -431,18 +449,19 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r5, -8(r1);			\
 	std	r6, -16(r1);			\
 	std	r7, -24(r1);			\
 	std	r8, -32(r1);			\
-	stdu	r9, -40(r1);			\
+	std	r9, -40(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-40(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 40;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+40; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
@@ -454,7 +473,7 @@ _GLOBAL(_##API_NAME)				\
 	ld	r11, -40(r1);			\
 	std	r8, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -462,18 +481,19 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
-	stdu	r6, -8(r1);			\
+	std	r6, -8(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-8(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 8;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+8;	\
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -481,21 +501,22 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r6, -8(r1);			\
-	stdu	r7, -16(r1);			\
+	std	r7, -16(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-16(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 16;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+16; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
 	std	r5, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -503,16 +524,17 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r6, -8(r1);			\
 	std	r7, -16(r1);			\
-	stdu	r8, -24(r1);			\
+	std	r8, -24(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-24(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 24;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+24; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
@@ -520,7 +542,7 @@ _GLOBAL(_##API_NAME)				\
 	ld	r11, -24(r1);			\
 	std	r6, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -528,18 +550,19 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
-	stdu    r7, -8(r1);			\
+	std	r7, -8(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-8(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 8;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+8;	\
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -547,21 +570,22 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r7, -8(r1);			\
-	stdu	r8, -16(r1);			\
+	std	r8, -16(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-16(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 16;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+16; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
 	std	r5, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -569,16 +593,17 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r7, -8(r1);			\
 	std	r8, -16(r1);			\
-	stdu	r9, -24(r1);			\
+	std	r9, -24(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-24(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 24;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+24; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
@@ -586,7 +611,7 @@ _GLOBAL(_##API_NAME)				\
 	ld	r11, -24(r1);			\
 	std	r6, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -594,18 +619,19 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
-	stdu    r8, -8(r1);			\
+	std	r8, -8(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-8(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 8;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+8;	\
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -613,21 +639,22 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r8, -8(r1);			\
-	stdu	r9, -16(r1);			\
+	std	r9, -16(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-16(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 16;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+16; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
 	std	r5, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -635,16 +662,17 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r8, -8(r1);			\
 	std	r9, -16(r1);			\
-	stdu	r10, -24(r1);			\
+	std	r10, -24(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-24(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 24;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+24; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
@@ -652,7 +680,7 @@ _GLOBAL(_##API_NAME)				\
 	ld	r11, -24(r1);			\
 	std	r6, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -660,18 +688,19 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
-	stdu    r9, -8(r1);			\
+	std	r9, -8(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-8(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 8;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+8;	\
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -679,21 +708,22 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r9, -8(r1);			\
-	stdu    r10, -16(r1);			\
+	std	r10, -16(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-16(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 16;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+16; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
 	std	r5, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -701,23 +731,24 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
 	std     r9, -8(r1);			\
-	stdu    r10, -16(r1);			\
+	std	r10, -16(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-16(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 16;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+16; \
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 	ld	r11, -16(r1);			\
 	std	r5, 0(r11);			\
-	ld	r11, 48+8*8(r1);		\
+	ld	r11, STK_PARAM_AREA+8*8(r1);	\
 	std	r6, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -725,18 +756,19 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
-	stdu    r10, -8(r1);			\
+	std	r10, -8(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE-8(r1); \
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	addi	r1, r1, 8;			\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE+8;	\
 	ld	r11, -8(r1);			\
 	std	r4, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -744,27 +776,29 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
 						\
-	std	r10, 48+8*7(r1);		\
+	std	r10, STK_PARAM_AREA+8*7(r1);	\
+	stdu    r1, -STACK_FRAME_MIN_SIZE(r1);	\
 						\
 	li	r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	ld	r11, 48+8*7(r1);		\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE;	\
+	ld	r11, STK_PARAM_AREA+8*7(r1);	\
 	std	r4, 0(r11);			\
-	ld	r11, 48+8*8(r1);		\
+	ld	r11, STK_PARAM_AREA+8*8(r1);	\
 	std	r5, 0(r11);			\
-	ld	r11, 48+8*9(r1);		\
+	ld	r11, STK_PARAM_AREA+8*9(r1);	\
 	std	r6, 0(r11);			\
-	ld	r11, 48+8*10(r1);		\
+	ld	r11, STK_PARAM_AREA+8*10(r1);	\
 	std	r7, 0(r11);			\
-	ld	r11, 48+8*11(r1);		\
+	ld	r11, STK_PARAM_AREA+8*11(r1);	\
 	std	r8, 0(r11);			\
-	ld	r11, 48+8*12(r1);		\
+	ld	r11, STK_PARAM_AREA+8*12(r1);	\
 	std	r9, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
@@ -772,15 +806,17 @@ _GLOBAL(_##API_NAME)				\
 _GLOBAL(_##API_NAME)				\
 						\
 	mflr	r0;				\
-	std	r0, 16(r1);			\
+	std	r0, LRSAVE(r1);			\
+	stdu    r1, -STACK_FRAME_MIN_SIZE(r1);	\
 						\
 	li      r11, API_NUMBER;		\
 	lv1call;				\
 						\
-	ld	r11, 48+8*8(r1);		\
+	addi	r1, r1, STACK_FRAME_MIN_SIZE;	\
+	ld	r11, STK_PARAM_AREA+8*8(r1);	\
 	std	r4, 0(r11);			\
 						\
-	ld	r0, 16(r1);			\
+	ld	r0, LRSAVE(r1);			\
 	mtlr	r0;				\
 	blr
 
diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c
index 998e3aff2457..b401282727a4 100644
--- a/arch/powerpc/platforms/pseries/ibmebus.c
+++ b/arch/powerpc/platforms/pseries/ibmebus.c
@@ -55,7 +55,7 @@ static struct device ibmebus_bus_device = { /* fake "parent" device */
 	.init_name = "ibmebus",
 };
 
-struct bus_type ibmebus_bus_type;
+const struct bus_type ibmebus_bus_type;
 
 /* These devices will automatically be added to the bus during init */
 static const struct of_device_id ibmebus_matches[] __initconst = {
@@ -432,7 +432,7 @@ static int ibmebus_bus_modalias(const struct device *dev, struct kobj_uevent_env
 	return of_device_uevent_modalias(dev, env);
 }
 
-struct bus_type ibmebus_bus_type = {
+const struct bus_type ibmebus_bus_type = {
 	.name      = "ibmebus",
 	.uevent    = ibmebus_bus_modalias,
 	.bus_groups = ibmbus_bus_groups,
diff --git a/arch/powerpc/platforms/pseries/lparcfg.c b/arch/powerpc/platforms/pseries/lparcfg.c
index 1c151d77e74b..f73c4d1c26af 100644
--- a/arch/powerpc/platforms/pseries/lparcfg.c
+++ b/arch/powerpc/platforms/pseries/lparcfg.c
@@ -346,9 +346,13 @@ static int read_rtas_lpar_name(struct seq_file *m)
  */
 static int read_dt_lpar_name(struct seq_file *m)
 {
+	struct device_node *root = of_find_node_by_path("/");
 	const char *name;
+	int ret;
 
-	if (of_property_read_string(of_root, "ibm,partition-name", &name))
+	ret = of_property_read_string(root, "ibm,partition-name", &name);
+	of_node_put(root);
+	if (ret)
 		return -ENOENT;
 
 	seq_printf(m, "partition_name=%s\n", name);
diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c
index 423ee1d5bd94..6dfb55b52d36 100644
--- a/arch/powerpc/platforms/pseries/msi.c
+++ b/arch/powerpc/platforms/pseries/msi.c
@@ -26,6 +26,7 @@ static int query_token, change_token;
 #define RTAS_CHANGE_MSI_FN	3
 #define RTAS_CHANGE_MSIX_FN	4
 #define RTAS_CHANGE_32MSI_FN	5
+#define RTAS_CHANGE_32MSIX_FN	6
 
 /* RTAS Helpers */
 
@@ -41,7 +42,7 @@ static int rtas_change_msi(struct pci_dn *pdn, u32 func, u32 num_irqs)
 	seq_num = 1;
 	do {
 		if (func == RTAS_CHANGE_MSI_FN || func == RTAS_CHANGE_MSIX_FN ||
-		    func == RTAS_CHANGE_32MSI_FN)
+		    func == RTAS_CHANGE_32MSI_FN || func == RTAS_CHANGE_32MSIX_FN)
 			rc = rtas_call(change_token, 6, 4, rtas_ret, addr,
 					BUID_HI(buid), BUID_LO(buid),
 					func, num_irqs, seq_num);
@@ -406,8 +407,12 @@ again:
 
 		if (use_32bit_msi_hack && rc > 0)
 			rtas_hack_32bit_msi_gen2(pdev);
-	} else
-		rc = rtas_change_msi(pdn, RTAS_CHANGE_MSIX_FN, nvec);
+	} else {
+		if (pdev->no_64bit_msi)
+			rc = rtas_change_msi(pdn, RTAS_CHANGE_32MSIX_FN, nvec);
+		else
+			rc = rtas_change_msi(pdn, RTAS_CHANGE_MSIX_FN, nvec);
+	}
 
 	if (rc != nvec) {
 		if (nvec != nvec_in) {
diff --git a/arch/powerpc/platforms/pseries/papr_platform_attributes.c b/arch/powerpc/platforms/pseries/papr_platform_attributes.c
index 526c621b098b..eea2041b270b 100644
--- a/arch/powerpc/platforms/pseries/papr_platform_attributes.c
+++ b/arch/powerpc/platforms/pseries/papr_platform_attributes.c
@@ -101,10 +101,12 @@ retry:
 		esi_buf_size = ESI_HDR_SIZE + (CURR_MAX_ESI_ATTRS * max_esi_attrs);
 
 		temp_buf = krealloc(buf, esi_buf_size, GFP_KERNEL);
-		if (temp_buf)
+		if (temp_buf) {
 			buf = temp_buf;
-		else
-			return -ENOMEM;
+		} else {
+			ret = -ENOMEM;
+			goto out_buf;
+		}
 
 		goto retry;
 	}
diff --git a/arch/powerpc/platforms/pseries/papr_scm.c b/arch/powerpc/platforms/pseries/papr_scm.c
index 1a53e048ceb7..c233f9db039b 100644
--- a/arch/powerpc/platforms/pseries/papr_scm.c
+++ b/arch/powerpc/platforms/pseries/papr_scm.c
@@ -1521,7 +1521,7 @@ err:	kfree(p);
 	return rc;
 }
 
-static int papr_scm_remove(struct platform_device *pdev)
+static void papr_scm_remove(struct platform_device *pdev)
 {
 	struct papr_scm_priv *p = platform_get_drvdata(pdev);
 
@@ -1538,8 +1538,6 @@ static int papr_scm_remove(struct platform_device *pdev)
 	pdev->archdata.priv = NULL;
 	kfree(p->bus_desc.provider_name);
 	kfree(p);
-
-	return 0;
 }
 
 static const struct of_device_id papr_scm_match[] = {
@@ -1550,7 +1548,7 @@ static const struct of_device_id papr_scm_match[] = {
 
 static struct platform_driver papr_scm_driver = {
 	.probe = papr_scm_probe,
-	.remove = papr_scm_remove,
+	.remove_new = papr_scm_remove,
 	.driver = {
 		.name = "papr_scm",
 		.of_match_table = papr_scm_match,
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index ecea85c74c43..284a6fa04b0c 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -1029,9 +1029,11 @@ static void __init pseries_add_hw_description(void)
 		return;
 	}
 
-	if (of_property_read_bool(of_root, "ibm,powervm-partition") ||
-	    of_property_read_bool(of_root, "ibm,fw-net-version"))
+	dn = of_find_node_by_path("/");
+	if (of_property_read_bool(dn, "ibm,powervm-partition") ||
+	    of_property_read_bool(dn, "ibm,fw-net-version"))
 		seq_buf_printf(&ppc_hw_desc, "hv:phyp ");
+	of_node_put(dn);
 }
 
 /*
@@ -1091,7 +1093,11 @@ static void pseries_power_off(void)
 
 static int __init pSeries_probe(void)
 {
-	if (!of_node_is_type(of_root, "chrp"))
+	struct device_node *root = of_find_node_by_path("/");
+	bool ret = of_node_is_type(root, "chrp");
+
+	of_node_put(root);
+	if (!ret)
 		return 0;
 
 	/* Cell blades firmware claims to be chrp while it's not. Until this
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
index 2dc9cbc4bcd8..90ff85c879bf 100644
--- a/arch/powerpc/platforms/pseries/vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -991,18 +991,6 @@ static DEVICE_ATTR_RO(cmo_allocated);
 static DEVICE_ATTR_RW(cmo_desired);
 static DEVICE_ATTR_RW(cmo_allocs_failed);
 
-static struct attribute *vio_cmo_dev_attrs[] = {
-	&dev_attr_name.attr,
-	&dev_attr_devspec.attr,
-	&dev_attr_modalias.attr,
-	&dev_attr_cmo_entitled.attr,
-	&dev_attr_cmo_allocated.attr,
-	&dev_attr_cmo_desired.attr,
-	&dev_attr_cmo_allocs_failed.attr,
-	NULL,
-};
-ATTRIBUTE_GROUPS(vio_cmo_dev);
-
 /* sysfs bus functions and data structures for CMO */
 
 #define viobus_cmo_rd_attr(name)                                        \
@@ -1062,11 +1050,7 @@ static struct attribute *vio_bus_attrs[] = {
 };
 ATTRIBUTE_GROUPS(vio_bus);
 
-static void __init vio_cmo_sysfs_init(void)
-{
-	vio_bus_type.dev_groups = vio_cmo_dev_groups;
-	vio_bus_type.bus_groups = vio_bus_groups;
-}
+static void __init vio_cmo_sysfs_init(void) { }
 #else /* CONFIG_PPC_SMLPAR */
 int vio_cmo_entitlement_update(size_t new_entitlement) { return 0; }
 void vio_cmo_set_dev_desired(struct vio_dev *viodev, size_t desired) {}
@@ -1584,14 +1568,6 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 }
 static DEVICE_ATTR_RO(modalias);
 
-static struct attribute *vio_dev_attrs[] = {
-	&dev_attr_name.attr,
-	&dev_attr_devspec.attr,
-	&dev_attr_modalias.attr,
-	NULL,
-};
-ATTRIBUTE_GROUPS(vio_dev);
-
 void vio_unregister_device(struct vio_dev *viodev)
 {
 	device_unregister(&viodev->dev);
@@ -1626,7 +1602,39 @@ static int vio_hotplug(const struct device *dev, struct kobj_uevent_env *env)
 	return 0;
 }
 
-struct bus_type vio_bus_type = {
+#ifdef CONFIG_PPC_SMLPAR
+static struct attribute *vio_cmo_dev_attrs[] = {
+	&dev_attr_name.attr,
+	&dev_attr_devspec.attr,
+	&dev_attr_modalias.attr,
+	&dev_attr_cmo_entitled.attr,
+	&dev_attr_cmo_allocated.attr,
+	&dev_attr_cmo_desired.attr,
+	&dev_attr_cmo_allocs_failed.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(vio_cmo_dev);
+
+const struct bus_type vio_bus_type = {
+	.name = "vio",
+	.dev_groups = vio_cmo_dev_groups,
+	.bus_groups = vio_bus_groups,
+	.uevent = vio_hotplug,
+	.match = vio_bus_match,
+	.probe = vio_bus_probe,
+	.remove = vio_bus_remove,
+	.shutdown = vio_bus_shutdown,
+};
+#else /* CONFIG_PPC_SMLPAR */
+static struct attribute *vio_dev_attrs[] = {
+	&dev_attr_name.attr,
+	&dev_attr_devspec.attr,
+	&dev_attr_modalias.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(vio_dev);
+
+const struct bus_type vio_bus_type = {
 	.name = "vio",
 	.dev_groups = vio_dev_groups,
 	.uevent = vio_hotplug,
@@ -1635,6 +1643,7 @@ struct bus_type vio_bus_type = {
 	.remove = vio_bus_remove,
 	.shutdown = vio_bus_shutdown,
 };
+#endif /* CONFIG_PPC_SMLPAR */
 
 /**
  * vio_get_attribute: - get attribute for virtual device