Merge tag 'powerpc-6.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Madhavan Srinivasan:

 - Add preempt lazy support

 - Deprecate cxl and cxl flash driver

 - Fix a possible IOMMU related OOPS at boot on pSeries

 - Optimize sched_clock() in ppc32 by replacing mulhdu() by
   mul_u64_u64_shr()

Thanks to Andrew Donnellan, Andy Shevchenko, Ankur Arora, Christophe
Leroy, Frederic Barrat, Gaurav Batra, Luis Felipe Hernandez, Michael
Ellerman, Nilay Shroff, Ricardo B.  Marliere, Ritesh Harjani (IBM),
Sebastian Andrzej Siewior, Shrikanth Hegde, Sourabh Jain, Thorsten Blum,
and Zhu Jun.

* tag 'powerpc-6.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  selftests/powerpc: Fix argument order to timer_sub()
  powerpc/prom_init: Use IS_ENABLED()
  powerpc/pseries/iommu: IOMMU incorrectly marks MMIO range in DDW
  powerpc: Use str_on_off() helper in check_cache_coherency()
  powerpc: Large user copy aware of full:rt:lazy preemption
  powerpc: Add preempt lazy support
  powerpc/book3s64/hugetlb: Fix disabling hugetlb when fadump is active
  powerpc/vdso: Mark the vDSO code read-only after init
  powerpc/64: Use get_user() in start_thread()
  macintosh: declare ctl_table as const
  selftest/powerpc/ptrace: Cleanup duplicate macro definitions
  selftest/powerpc/ptrace/ptrace-pkey: Remove duplicate macros
  selftest/powerpc/ptrace/core-pkey: Remove duplicate macros
  powerpc/8xx: Drop legacy-of-mm-gpiochip.h header
  scsi/cxlflash: Deprecate driver
  cxl: Deprecate driver
  selftests/powerpc: Fix typo in test-vphn.c
  powerpc/xmon: Use str_yes_no() helper in dump_one_paca()
  powerpc/32: Replace mulhdu() by mul_u64_u64_shr()

29 files changed, 142 insertions, 194 deletions

diff --git a/Documentation/ABI/testing/sysfs-class-cxl b/Documentation/ABI/obsolete/sysfs-class-cxl
index cfc48a87706b..8cba1b626985 100644
--- a/Documentation/ABI/testing/sysfs-class-cxl
+++ b/Documentation/ABI/obsolete/sysfs-class-cxl
@@ -1,3 +1,6 @@
+The cxl driver is no longer maintained, and will be removed from the kernel in
+the near future.
+
 Please note that attributes that are shared between devices are stored in
 the directory pointed to by the symlink device/.
 For example, the real path of the attribute /sys/class/cxl/afu0.0s/irqs_max is
diff --git a/MAINTAINERS b/MAINTAINERS
index 954c765ed3fd..6796137bf5d9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6226,8 +6226,8 @@ CXL (IBM Coherent Accelerator Processor Interface CAPI) DRIVER
 M:	Frederic Barrat <fbarrat@linux.ibm.com>
 M:	Andrew Donnellan <ajd@linux.ibm.com>
 L:	linuxppc-dev@lists.ozlabs.org
-S:	Supported
-F:	Documentation/ABI/testing/sysfs-class-cxl
+S:	Obsolete
+F:	Documentation/ABI/obsolete/sysfs-class-cxl
 F:	Documentation/arch/powerpc/cxl.rst
 F:	arch/powerpc/platforms/powernv/pci-cxl.c
 F:	drivers/misc/cxl/
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index a0ce777f9706..db9f7b2d07bf 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -145,6 +145,7 @@ config PPC
 	select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
 	select ARCH_HAS_PHYS_TO_DMA
 	select ARCH_HAS_PMEM_API
+	select ARCH_HAS_PREEMPT_LAZY
 	select ARCH_HAS_PTE_DEVMAP		if PPC_BOOK3S_64
 	select ARCH_HAS_PTE_SPECIAL
 	select ARCH_HAS_SCALED_CPUTIME		if VIRT_CPU_ACCOUNTING_NATIVE && PPC_BOOK3S_64
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 18a3028ac3b6..dad2e7980f24 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -15,6 +15,15 @@
 
 extern bool hugetlb_disabled;
 
+static inline bool hugepages_supported(void)
+{
+	if (hugetlb_disabled)
+		return false;
+
+	return HPAGE_SHIFT != 0;
+}
+#define hugepages_supported hugepages_supported
+
 void __init hugetlbpage_init_defaultsize(void);
 
 int slice_is_hugepage_only_range(struct mm_struct *mm, unsigned long addr,
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index 6ebca2996f18..2785c7462ebf 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -103,6 +103,7 @@ void arch_setup_new_exec(void);
 #define TIF_PATCH_PENDING	6	/* pending live patching update */
 #define TIF_SYSCALL_AUDIT	7	/* syscall auditing active */
 #define TIF_SINGLESTEP		8	/* singlestepping active */
+#define TIF_NEED_RESCHED_LAZY	9       /* Scheduler driven lazy preemption */
 #define TIF_SECCOMP		10	/* secure computing */
 #define TIF_RESTOREALL		11	/* Restore all regs (implies NOERROR) */
 #define TIF_NOERROR		12	/* Force successful syscall return */
@@ -122,6 +123,7 @@ void arch_setup_new_exec(void);
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)
+#define _TIF_NEED_RESCHED_LAZY	(1<<TIF_NEED_RESCHED_LAZY)
 #define _TIF_NOTIFY_SIGNAL	(1<<TIF_NOTIFY_SIGNAL)
 #define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)
 #define _TIF_32BIT		(1<<TIF_32BIT)
@@ -142,9 +144,10 @@ void arch_setup_new_exec(void);
 				 _TIF_SYSCALL_EMU)
 
 #define _TIF_USER_WORK_MASK	(_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
-				 _TIF_NOTIFY_RESUME | _TIF_UPROBE | \
-				 _TIF_RESTORE_TM | _TIF_PATCH_PENDING | \
-				 _TIF_NOTIFY_SIGNAL)
+				 _TIF_NEED_RESCHED_LAZY | _TIF_NOTIFY_RESUME | \
+				 _TIF_UPROBE | _TIF_RESTORE_TM | \
+				 _TIF_PATCH_PENDING | _TIF_NOTIFY_SIGNAL)
+
 #define _TIF_PERSYSCALL_MASK	(_TIF_RESTOREALL|_TIF_NOERROR)
 
 /* Bits in local_flags */
diff --git a/arch/powerpc/include/asm/time.h b/arch/powerpc/include/asm/time.h
index 221c8f8ff89b..9bdd8080299b 100644
--- a/arch/powerpc/include/asm/time.h
+++ b/arch/powerpc/include/asm/time.h
@@ -86,7 +86,7 @@ static inline unsigned long tb_ticks_since(unsigned long tstamp)
 #define mulhdu(x,y) \
 ({unsigned long z; asm ("mulhdu %0,%1,%2" : "=r" (z) : "r" (x), "r" (y)); z;})
 #else
-extern u64 mulhdu(u64, u64);
+#define mulhdu(x, y)	mul_u64_u64_shr(x, y, 64)
 #endif
 
 extern void div128_by_32(u64 dividend_high, u64 dividend_low,
diff --git a/arch/powerpc/kernel/interrupt.c b/arch/powerpc/kernel/interrupt.c
index af62ec974b97..8f4acc55407b 100644
--- a/arch/powerpc/kernel/interrupt.c
+++ b/arch/powerpc/kernel/interrupt.c
@@ -185,7 +185,7 @@ again:
 	ti_flags = read_thread_flags();
 	while (unlikely(ti_flags & (_TIF_USER_WORK_MASK & ~_TIF_RESTORE_TM))) {
 		local_irq_enable();
-		if (ti_flags & _TIF_NEED_RESCHED) {
+		if (ti_flags & (_TIF_NEED_RESCHED | _TIF_NEED_RESCHED_LAZY)) {
 			schedule();
 		} else {
 			/*
@@ -396,7 +396,7 @@ notrace unsigned long interrupt_exit_kernel_prepare(struct pt_regs *regs)
 		/* Returning to a kernel context with local irqs enabled. */
 		WARN_ON_ONCE(!(regs->msr & MSR_EE));
 again:
-		if (IS_ENABLED(CONFIG_PREEMPT)) {
+		if (IS_ENABLED(CONFIG_PREEMPTION)) {
 			/* Return to preemptible kernel context */
 			if (unlikely(read_thread_flags() & _TIF_NEED_RESCHED)) {
 				if (preempt_count() == 0)
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index 76381e14e800..0ebae6e4c19d 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -687,7 +687,7 @@ void iommu_table_clear(struct iommu_table *tbl)
 void iommu_table_reserve_pages(struct iommu_table *tbl,
 		unsigned long res_start, unsigned long res_end)
 {
-	int i;
+	unsigned long i;
 
 	WARN_ON_ONCE(res_end < res_start);
 	/*
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 033cd00aa0fc..acb727f54e9d 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -28,32 +28,6 @@
 	.text
 
 /*
- * This returns the high 64 bits of the product of two 64-bit numbers.
- */
-_GLOBAL(mulhdu)
-	cmpwi	r6,0
-	cmpwi	cr1,r3,0
-	mr	r10,r4
-	mulhwu	r4,r4,r5
-	beq	1f
-	mulhwu	r0,r10,r6
-	mullw	r7,r10,r5
-	addc	r7,r0,r7
-	addze	r4,r4
-1:	beqlr	cr1		/* all done if high part of A is 0 */
-	mullw	r9,r3,r5
-	mulhwu	r10,r3,r5
-	beq	2f
-	mullw	r0,r3,r6
-	mulhwu	r8,r3,r6
-	addc	r7,r0,r7
-	adde	r4,r4,r8
-	addze	r10,r10
-2:	addc	r4,r4,r9
-	addze	r3,r10
-	blr
-
-/*
  * reloc_got2 runs through the .got2 section adding an offset
  * to each entry.
  */
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 7b739b9a91ab..ef91f71e07c4 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1960,8 +1960,8 @@ void start_thread(struct pt_regs *regs, unsigned long start, unsigned long sp)
 			 * address of _start and the second entry is the TOC
 			 * value we need to use.
 			 */
-			__get_user(entry, (unsigned long __user *)start);
-			__get_user(toc, (unsigned long __user *)start+1);
+			get_user(entry, (unsigned long __user *)start);
+			get_user(toc, (unsigned long __user *)start+1);
 
 			/* Check whether the e_entry function descriptor entries
 			 * need to be relocated before we can use them.
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 8e776ba39497..57082fac4668 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -2792,7 +2792,6 @@ static void __init flatten_device_tree(void)
 		    dt_struct_start, dt_struct_end);
 }
 
-#ifdef CONFIG_PPC_CHRP
 /*
  * Pegasos and BriQ lacks the "ranges" property in the isa node
  * Pegasos needs decimal IRQ 14/15, not hexadecimal
@@ -2843,11 +2842,7 @@ static void __init fixup_device_tree_chrp(void)
 		}
 	}
 }
-#else
-#define fixup_device_tree_chrp()
-#endif
 
-#if defined(CONFIG_PPC64) && defined(CONFIG_PPC_PMAC)
 static void __init fixup_device_tree_pmac64(void)
 {
 	phandle u3, i2c, mpic;
@@ -2887,11 +2882,7 @@ static void __init fixup_device_tree_pmac64(void)
 	prom_setprop(i2c, "/u3@0,f8000000/i2c@f8001000", "interrupt-parent",
 		     &parent, sizeof(parent));
 }
-#else
-#define fixup_device_tree_pmac64()
-#endif
 
-#ifdef CONFIG_PPC_PMAC
 static void __init fixup_device_tree_pmac(void)
 {
 	__be32 val = 1;
@@ -2911,11 +2902,7 @@ static void __init fixup_device_tree_pmac(void)
 		prom_setprop(node, NULL, "#size-cells", &val, sizeof(val));
 	}
 }
-#else
-static inline void fixup_device_tree_pmac(void) { }
-#endif
 
-#ifdef CONFIG_PPC_EFIKA
 /*
  * The MPC5200 FEC driver requires an phy-handle property to tell it how
  * to talk to the phy.  If the phy-handle property is missing, then this
@@ -3047,11 +3034,7 @@ static void __init fixup_device_tree_efika(void)
 	/* Make sure ethernet phy-handle property exists */
 	fixup_device_tree_efika_add_phy();
 }
-#else
-#define fixup_device_tree_efika()
-#endif
 
-#ifdef CONFIG_PPC_PASEMI_NEMO
 /*
  * CFE supplied on Nemo is broken in several ways, biggest
  * problem is that it reassigns ISA interrupts to unused mpic ints.
@@ -3127,17 +3110,23 @@ static void __init fixup_device_tree_pasemi(void)
 
 	prom_setprop(iob, name, "device_type", "isa", sizeof("isa"));
 }
-#else	/* !CONFIG_PPC_PASEMI_NEMO */
-static inline void fixup_device_tree_pasemi(void) { }
-#endif
 
 static void __init fixup_device_tree(void)
 {
-	fixup_device_tree_chrp();
-	fixup_device_tree_pmac();
-	fixup_device_tree_pmac64();
-	fixup_device_tree_efika();
-	fixup_device_tree_pasemi();
+	if (IS_ENABLED(CONFIG_PPC_CHRP))
+		fixup_device_tree_chrp();
+
+	if (IS_ENABLED(CONFIG_PPC_PMAC))
+		fixup_device_tree_pmac();
+
+	if (IS_ENABLED(CONFIG_PPC_PMAC) && IS_ENABLED(CONFIG_PPC64))
+		fixup_device_tree_pmac64();
+
+	if (IS_ENABLED(CONFIG_PPC_EFIKA))
+		fixup_device_tree_efika();
+
+	if (IS_ENABLED(CONFIG_PPC_PASEMI_NEMO))
+		fixup_device_tree_pasemi();
 }
 
 static void __init prom_find_boot_cpu(void)
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 6fa179448c33..f7d7a93f07fc 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -834,8 +834,8 @@ static int __init check_cache_coherency(void)
 	if (devtree_coherency != KERNEL_COHERENCY) {
 		printk(KERN_ERR
 			"kernel coherency:%s != device tree_coherency:%s\n",
-			KERNEL_COHERENCY ? "on" : "off",
-			devtree_coherency ? "on" : "off");
+			str_on_off(KERNEL_COHERENCY),
+			str_on_off(devtree_coherency));
 		BUG();
 	}
 
diff --git a/arch/powerpc/kernel/vdso32_wrapper.S b/arch/powerpc/kernel/vdso32_wrapper.S
index 10f92f265d51..20bca3548b44 100644
--- a/arch/powerpc/kernel/vdso32_wrapper.S
+++ b/arch/powerpc/kernel/vdso32_wrapper.S
@@ -2,7 +2,7 @@
 #include <linux/linkage.h>
 #include <asm/page.h>
 
-	__PAGE_ALIGNED_DATA
+	.section ".data..ro_after_init", "aw"
 
 	.globl vdso32_start, vdso32_end
 	.balign PAGE_SIZE
diff --git a/arch/powerpc/kernel/vdso64_wrapper.S b/arch/powerpc/kernel/vdso64_wrapper.S
index 839d1a61411d..1912936fa227 100644
--- a/arch/powerpc/kernel/vdso64_wrapper.S
+++ b/arch/powerpc/kernel/vdso64_wrapper.S
@@ -2,7 +2,7 @@
 #include <linux/linkage.h>
 #include <asm/page.h>
 
-	__PAGE_ALIGNED_DATA
+	.section ".data..ro_after_init", "aw"
 
 	.globl vdso64_start, vdso64_end
 	.balign PAGE_SIZE
diff --git a/arch/powerpc/lib/vmx-helper.c b/arch/powerpc/lib/vmx-helper.c
index d491da8d1838..58ed6bd613a6 100644
--- a/arch/powerpc/lib/vmx-helper.c
+++ b/arch/powerpc/lib/vmx-helper.c
@@ -45,7 +45,7 @@ int exit_vmx_usercopy(void)
 	 * set and we are preemptible. The hack here is to schedule a
 	 * decrementer to fire here and reschedule for us if necessary.
 	 */
-	if (IS_ENABLED(CONFIG_PREEMPT) && need_resched())
+	if (IS_ENABLED(CONFIG_PREEMPTION) && need_resched())
 		set_dec(1);
 	return 0;
 }
diff --git a/arch/powerpc/platforms/8xx/cpm1.c b/arch/powerpc/platforms/8xx/cpm1.c
index b24d4102fbf6..1dc095ad48fc 100644
--- a/arch/powerpc/platforms/8xx/cpm1.c
+++ b/arch/powerpc/platforms/8xx/cpm1.c
@@ -45,7 +45,7 @@
 #include <sysdev/fsl_soc.h>
 
 #ifdef CONFIG_8xx_GPIO
-#include <linux/gpio/legacy-of-mm-gpiochip.h>
+#include <linux/gpio/driver.h>
 #endif
 
 #define CPM_MAP_SIZE    (0x4000)
@@ -376,7 +376,8 @@ int __init cpm1_clk_setup(enum cpm_clk_target target, int clock, int mode)
 #ifdef CONFIG_8xx_GPIO
 
 struct cpm1_gpio16_chip {
-	struct of_mm_gpio_chip mm_gc;
+	struct gpio_chip gc;
+	void __iomem *regs;
 	spinlock_t lock;
 
 	/* shadowed data register to clear/set bits safely */
@@ -386,19 +387,17 @@ struct cpm1_gpio16_chip {
 	int irq[16];
 };
 
-static void cpm1_gpio16_save_regs(struct of_mm_gpio_chip *mm_gc)
+static void cpm1_gpio16_save_regs(struct cpm1_gpio16_chip *cpm1_gc)
 {
-	struct cpm1_gpio16_chip *cpm1_gc =
-		container_of(mm_gc, struct cpm1_gpio16_chip, mm_gc);
-	struct cpm_ioport16 __iomem *iop = mm_gc->regs;
+	struct cpm_ioport16 __iomem *iop = cpm1_gc->regs;
 
 	cpm1_gc->cpdata = in_be16(&iop->dat);
 }
 
 static int cpm1_gpio16_get(struct gpio_chip *gc, unsigned int gpio)
 {
-	struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
-	struct cpm_ioport16 __iomem *iop = mm_gc->regs;
+	struct cpm1_gpio16_chip *cpm1_gc = gpiochip_get_data(gc);
+	struct cpm_ioport16 __iomem *iop = cpm1_gc->regs;
 	u16 pin_mask;
 
 	pin_mask = 1 << (15 - gpio);
@@ -406,11 +405,9 @@ static int cpm1_gpio16_get(struct gpio_chip *gc, unsigned int gpio)
 	return !!(in_be16(&iop->dat) & pin_mask);
 }
 
-static void __cpm1_gpio16_set(struct of_mm_gpio_chip *mm_gc, u16 pin_mask,
-	int value)
+static void __cpm1_gpio16_set(struct cpm1_gpio16_chip *cpm1_gc, u16 pin_mask, int value)
 {
-	struct cpm1_gpio16_chip *cpm1_gc = gpiochip_get_data(&mm_gc->gc);
-	struct cpm_ioport16 __iomem *iop = mm_gc->regs;
+	struct cpm_ioport16 __iomem *iop = cpm1_gc->regs;
 
 	if (value)
 		cpm1_gc->cpdata |= pin_mask;
@@ -422,38 +419,35 @@ static void __cpm1_gpio16_set(struct of_mm_gpio_chip *mm_gc, u16 pin_mask,
 
 static void cpm1_gpio16_set(struct gpio_chip *gc, unsigned int gpio, int value)
 {
-	struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
-	struct cpm1_gpio16_chip *cpm1_gc = gpiochip_get_data(&mm_gc->gc);
+	struct cpm1_gpio16_chip *cpm1_gc = gpiochip_get_data(gc);
 	unsigned long flags;
 	u16 pin_mask = 1 << (15 - gpio);
 
 	spin_lock_irqsave(&cpm1_gc->lock, flags);
 
-	__cpm1_gpio16_set(mm_gc, pin_mask, value);
+	__cpm1_gpio16_set(cpm1_gc, pin_mask, value);
 
 	spin_unlock_irqrestore(&cpm1_gc->lock, flags);
 }
 
 static int cpm1_gpio16_to_irq(struct gpio_chip *gc, unsigned int gpio)
 {
-	struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
-	struct cpm1_gpio16_chip *cpm1_gc = gpiochip_get_data(&mm_gc->gc);
+	struct cpm1_gpio16_chip *cpm1_gc = gpiochip_get_data(gc);
 
 	return cpm1_gc->irq[gpio] ? : -ENXIO;
 }
 
 static int cpm1_gpio16_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
 {
-	struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
-	struct cpm1_gpio16_chip *cpm1_gc = gpiochip_get_data(&mm_gc->gc);
-	struct cpm_ioport16 __iomem *iop = mm_gc->regs;
+	struct cpm1_gpio16_chip *cpm1_gc = gpiochip_get_data(gc);
+	struct cpm_ioport16 __iomem *iop = cpm1_gc->regs;
 	unsigned long flags;
 	u16 pin_mask = 1 << (15 - gpio);
 
 	spin_lock_irqsave(&cpm1_gc->lock, flags);
 
 	setbits16(&iop->dir, pin_mask);
-	__cpm1_gpio16_set(mm_gc, pin_mask, val);
+	__cpm1_gpio16_set(cpm1_gc, pin_mask, val);
 
 	spin_unlock_irqrestore(&cpm1_gc->lock, flags);
 
@@ -462,9 +456,8 @@ static int cpm1_gpio16_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
 
 static int cpm1_gpio16_dir_in(struct gpio_chip *gc, unsigned int gpio)
 {
-	struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
-	struct cpm1_gpio16_chip *cpm1_gc = gpiochip_get_data(&mm_gc->gc);
-	struct cpm_ioport16 __iomem *iop = mm_gc->regs;
+	struct cpm1_gpio16_chip *cpm1_gc = gpiochip_get_data(gc);
+	struct cpm_ioport16 __iomem *iop = cpm1_gc->regs;
 	unsigned long flags;
 	u16 pin_mask = 1 << (15 - gpio);
 
@@ -481,11 +474,10 @@ int cpm1_gpiochip_add16(struct device *dev)
 {
 	struct device_node *np = dev->of_node;
 	struct cpm1_gpio16_chip *cpm1_gc;
-	struct of_mm_gpio_chip *mm_gc;
 	struct gpio_chip *gc;
 	u16 mask;
 
-	cpm1_gc = kzalloc(sizeof(*cpm1_gc), GFP_KERNEL);
+	cpm1_gc = devm_kzalloc(dev, sizeof(*cpm1_gc), GFP_KERNEL);
 	if (!cpm1_gc)
 		return -ENOMEM;
 
@@ -499,10 +491,8 @@ int cpm1_gpiochip_add16(struct device *dev)
 				cpm1_gc->irq[i] = irq_of_parse_and_map(np, j++);
 	}
 
-	mm_gc = &cpm1_gc->mm_gc;
-	gc = &mm_gc->gc;
-
-	mm_gc->save_regs = cpm1_gpio16_save_regs;
+	gc = &cpm1_gc->gc;
+	gc->base = -1;
 	gc->ngpio = 16;
 	gc->direction_input = cpm1_gpio16_dir_in;
 	gc->direction_output = cpm1_gpio16_dir_out;
@@ -512,30 +502,39 @@ int cpm1_gpiochip_add16(struct device *dev)
 	gc->parent = dev;
 	gc->owner = THIS_MODULE;
 
-	return of_mm_gpiochip_add_data(np, mm_gc, cpm1_gc);
+	gc->label = devm_kasprintf(dev, GFP_KERNEL, "%pOF", np);
+	if (!gc->label)
+		return -ENOMEM;
+
+	cpm1_gc->regs = devm_of_iomap(dev, np, 0, NULL);
+	if (IS_ERR(cpm1_gc->regs))
+		return PTR_ERR(cpm1_gc->regs);
+
+	cpm1_gpio16_save_regs(cpm1_gc);
+
+	return devm_gpiochip_add_data(dev, gc, cpm1_gc);
 }
 
 struct cpm1_gpio32_chip {
-	struct of_mm_gpio_chip mm_gc;
+	struct gpio_chip gc;
+	void __iomem *regs;
 	spinlock_t lock;
 
 	/* shadowed data register to clear/set bits safely */
 	u32 cpdata;
 };
 
-static void cpm1_gpio32_save_regs(struct of_mm_gpio_chip *mm_gc)
+static void cpm1_gpio32_save_regs(struct cpm1_gpio32_chip *cpm1_gc)
 {
-	struct cpm1_gpio32_chip *cpm1_gc =
-		container_of(mm_gc, struct cpm1_gpio32_chip, mm_gc);
-	struct cpm_ioport32b __iomem *iop = mm_gc->regs;
+	struct cpm_ioport32b __iomem *iop = cpm1_gc->regs;
 
 	cpm1_gc->cpdata = in_be32(&iop->dat);
 }
 
 static int cpm1_gpio32_get(struct gpio_chip *gc, unsigned int gpio)
 {
-	struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
-	struct cpm_ioport32b __iomem *iop = mm_gc->regs;
+	struct cpm1_gpio32_chip *cpm1_gc = gpiochip_get_data(gc);
+	struct cpm_ioport32b __iomem *iop = cpm1_gc->regs;
 	u32 pin_mask;
 
 	pin_mask = 1 << (31 - gpio);
@@ -543,11 +542,9 @@ static int cpm1_gpio32_get(struct gpio_chip *gc, unsigned int gpio)
 	return !!(in_be32(&iop->dat) & pin_mask);
 }
 
-static void __cpm1_gpio32_set(struct of_mm_gpio_chip *mm_gc, u32 pin_mask,
-	int value)
+static void __cpm1_gpio32_set(struct cpm1_gpio32_chip *cpm1_gc, u32 pin_mask, int value)
 {
-	struct cpm1_gpio32_chip *cpm1_gc = gpiochip_get_data(&mm_gc->gc);
-	struct cpm_ioport32b __iomem *iop = mm_gc->regs;
+	struct cpm_ioport32b __iomem *iop = cpm1_gc->regs;
 
 	if (value)
 		cpm1_gc->cpdata |= pin_mask;
@@ -559,30 +556,28 @@ static void __cpm1_gpio32_set(struct of_mm_gpio_chip *mm_gc, u32 pin_mask,
 
 static void cpm1_gpio32_set(struct gpio_chip *gc, unsigned int gpio, int value)
 {
-	struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
-	struct cpm1_gpio32_chip *cpm1_gc = gpiochip_get_data(&mm_gc->gc);
+	struct cpm1_gpio32_chip *cpm1_gc = gpiochip_get_data(gc);
 	unsigned long flags;
 	u32 pin_mask = 1 << (31 - gpio);
 
 	spin_lock_irqsave(&cpm1_gc->lock, flags);
 
-	__cpm1_gpio32_set(mm_gc, pin_mask, value);
+	__cpm1_gpio32_set(cpm1_gc, pin_mask, value);
 
 	spin_unlock_irqrestore(&cpm1_gc->lock, flags);
 }
 
 static int cpm1_gpio32_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
 {
-	struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
-	struct cpm1_gpio32_chip *cpm1_gc = gpiochip_get_data(&mm_gc->gc);
-	struct cpm_ioport32b __iomem *iop = mm_gc->regs;
+	struct cpm1_gpio32_chip *cpm1_gc = gpiochip_get_data(gc);
+	struct cpm_ioport32b __iomem *iop = cpm1_gc->regs;
 	unsigned long flags;
 	u32 pin_mask = 1 << (31 - gpio);
 
 	spin_lock_irqsave(&cpm1_gc->lock, flags);
 
 	setbits32(&iop->dir, pin_mask);
-	__cpm1_gpio32_set(mm_gc, pin_mask, val);
+	__cpm1_gpio32_set(cpm1_gc, pin_mask, val);
 
 	spin_unlock_irqrestore(&cpm1_gc->lock, flags);
 
@@ -591,9 +586,8 @@ static int cpm1_gpio32_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
 
 static int cpm1_gpio32_dir_in(struct gpio_chip *gc, unsigned int gpio)
 {
-	struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
-	struct cpm1_gpio32_chip *cpm1_gc = gpiochip_get_data(&mm_gc->gc);
-	struct cpm_ioport32b __iomem *iop = mm_gc->regs;
+	struct cpm1_gpio32_chip *cpm1_gc = gpiochip_get_data(gc);
+	struct cpm_ioport32b __iomem *iop = cpm1_gc->regs;
 	unsigned long flags;
 	u32 pin_mask = 1 << (31 - gpio);
 
@@ -610,19 +604,16 @@ int cpm1_gpiochip_add32(struct device *dev)
 {
 	struct device_node *np = dev->of_node;
 	struct cpm1_gpio32_chip *cpm1_gc;
-	struct of_mm_gpio_chip *mm_gc;
 	struct gpio_chip *gc;
 
-	cpm1_gc = kzalloc(sizeof(*cpm1_gc), GFP_KERNEL);
+	cpm1_gc = devm_kzalloc(dev, sizeof(*cpm1_gc), GFP_KERNEL);
 	if (!cpm1_gc)
 		return -ENOMEM;
 
 	spin_lock_init(&cpm1_gc->lock);
 
-	mm_gc = &cpm1_gc->mm_gc;
-	gc = &mm_gc->gc;
-
-	mm_gc->save_regs = cpm1_gpio32_save_regs;
+	gc = &cpm1_gc->gc;
+	gc->base = -1;
 	gc->ngpio = 32;
 	gc->direction_input = cpm1_gpio32_dir_in;
 	gc->direction_output = cpm1_gpio32_dir_out;
@@ -631,7 +622,17 @@ int cpm1_gpiochip_add32(struct device *dev)
 	gc->parent = dev;
 	gc->owner = THIS_MODULE;
 
-	return of_mm_gpiochip_add_data(np, mm_gc, cpm1_gc);
+	gc->label = devm_kasprintf(dev, GFP_KERNEL, "%pOF", np);
+	if (!gc->label)
+		return -ENOMEM;
+
+	cpm1_gc->regs = devm_of_iomap(dev, np, 0, NULL);
+	if (IS_ERR(cpm1_gc->regs))
+		return PTR_ERR(cpm1_gc->regs);
+
+	cpm1_gpio32_save_regs(cpm1_gc);
+
+	return devm_gpiochip_add_data(dev, gc, cpm1_gc);
 }
 
 #endif /* CONFIG_8xx_GPIO */
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 534cd159e9ab..29f1a0cc59cd 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -1650,7 +1650,8 @@ static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn)
 		iommu_table_setparms_common(newtbl, pci->phb->bus->number, create.liobn,
 					    dynamic_addr, dynamic_len, page_shift, NULL,
 					    &iommu_table_lpar_multi_ops);
-		iommu_init_table(newtbl, pci->phb->node, start, end);
+		iommu_init_table(newtbl, pci->phb->node,
+				 start >> page_shift, end >> page_shift);
 
 		pci->table_group->tables[default_win_removed ? 0 : 1] = newtbl;
 
@@ -2065,7 +2066,9 @@ static long spapr_tce_create_table(struct iommu_table_group *table_group, int nu
 							    offset, 1UL << window_shift,
 							    IOMMU_PAGE_SHIFT_4K, NULL,
 							    &iommu_table_lpar_multi_ops);
-				iommu_init_table(tbl, pci->phb->node, start, end);
+				iommu_init_table(tbl, pci->phb->node,
+						 start >> IOMMU_PAGE_SHIFT_4K,
+						 end >> IOMMU_PAGE_SHIFT_4K);
 
 				table_group->tables[0] = tbl;
 
@@ -2136,7 +2139,7 @@ static long spapr_tce_create_table(struct iommu_table_group *table_group, int nu
 	/* New table for using DDW instead of the default DMA window */
 	iommu_table_setparms_common(tbl, pci->phb->bus->number, create.liobn, win_addr,
 				    1UL << len, page_shift, NULL, &iommu_table_lpar_multi_ops);
-	iommu_init_table(tbl, pci->phb->node, start, end);
+	iommu_init_table(tbl, pci->phb->node, start >> page_shift, end >> page_shift);
 
 	pci->table_group->tables[num] = tbl;
 	set_iommu_table_base(&pdev->dev, tbl);
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index f4e841a36458..268859e4df87 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -2623,9 +2623,9 @@ static void dump_one_paca(int cpu)
 
 	printf("paca for cpu 0x%x @ %px:\n", cpu, p);
 
-	printf(" %-*s = %s\n", 25, "possible", cpu_possible(cpu) ? "yes" : "no");
-	printf(" %-*s = %s\n", 25, "present", cpu_present(cpu) ? "yes" : "no");
-	printf(" %-*s = %s\n", 25, "online", cpu_online(cpu) ? "yes" : "no");
+	printf(" %-*s = %s\n", 25, "possible", str_yes_no(cpu_possible(cpu)));
+	printf(" %-*s = %s\n", 25, "present", str_yes_no(cpu_present(cpu)));
+	printf(" %-*s = %s\n", 25, "online", str_yes_no(cpu_online(cpu)));
 
 #define DUMP(paca, name, format)				\
 	printf(" %-*s = "format"\t(0x%lx)\n", 25, #name, 18, paca->name, \
diff --git a/drivers/macintosh/mac_hid.c b/drivers/macintosh/mac_hid.c
index b461b1bed25b..369d72f59b3c 100644
--- a/drivers/macintosh/mac_hid.c
+++ b/drivers/macintosh/mac_hid.c
@@ -215,7 +215,7 @@ static int mac_hid_toggle_emumouse(const struct ctl_table *table, int write,
 }
 
 /* file(s) in /proc/sys/dev/mac_hid */
-static struct ctl_table mac_hid_files[] = {
+static const struct ctl_table mac_hid_files[] = {
 	{
 		.procname	= "mouse_button_emulation",
 		.data		= &mouse_emulate_buttons,
diff --git a/drivers/misc/cxl/Kconfig b/drivers/misc/cxl/Kconfig
index 5efc4151bf58..15307f5e4307 100644
--- a/drivers/misc/cxl/Kconfig
+++ b/drivers/misc/cxl/Kconfig
@@ -9,11 +9,13 @@ config CXL_BASE
 	select PPC_64S_HASH_MMU
 
 config CXL
-	tristate "Support for IBM Coherent Accelerators (CXL)"
+	tristate "Support for IBM Coherent Accelerators (CXL) (DEPRECATED)"
 	depends on PPC_POWERNV && PCI_MSI && EEH
 	select CXL_BASE
-	default m
 	help
+	  The cxl driver is deprecated and will be removed in a future
+	  kernel release.
+
 	  Select this option to enable driver support for IBM Coherent
 	  Accelerators (CXL).  CXL is otherwise known as Coherent Accelerator
 	  Processor Interface (CAPI).  CAPI allows accelerators in FPGAs to be
diff --git a/drivers/misc/cxl/of.c b/drivers/misc/cxl/of.c
index cf6bd8a43056..e26ee85279fa 100644
--- a/drivers/misc/cxl/of.c
+++ b/drivers/misc/cxl/of.c
@@ -295,6 +295,8 @@ int cxl_of_probe(struct platform_device *pdev)
 	int ret;
 	int slice = 0, slice_ok = 0;
 
+	dev_err_once(&pdev->dev, "DEPRECATION: cxl is deprecated and will be removed in a future kernel release\n");
+
 	pr_devel("in %s\n", __func__);
 
 	np = pdev->dev.of_node;
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index 3d52f9b92d0d..92bf7c5c7b35 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -1726,6 +1726,8 @@ static int cxl_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	int slice;
 	int rc;
 
+	dev_err_once(&dev->dev, "DEPRECATED: cxl is deprecated and will be removed in a future kernel release\n");
+
 	if (cxl_pci_is_vphb_device(dev)) {
 		dev_dbg(&dev->dev, "cxl_init_adapter: Ignoring cxl vphb device\n");
 		return -ENODEV;
diff --git a/drivers/scsi/cxlflash/Kconfig b/drivers/scsi/cxlflash/Kconfig
index 5533bdcb0458..c424d36e89a6 100644
--- a/drivers/scsi/cxlflash/Kconfig
+++ b/drivers/scsi/cxlflash/Kconfig
@@ -4,10 +4,12 @@
 #
 
 config CXLFLASH
-	tristate "Support for IBM CAPI Flash"
+	tristate "Support for IBM CAPI Flash (DEPRECATED)"
 	depends on PCI && SCSI && (CXL || OCXL) && EEH
 	select IRQ_POLL
-	default m
 	help
+	  The cxlflash driver is deprecated and will be removed in a future
+	  kernel release.
+
 	  Allows CAPI Accelerated IO to Flash
 	  If unsure, say N.
diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c
index 60d62b93d624..62806f5e32e6 100644
--- a/drivers/scsi/cxlflash/main.c
+++ b/drivers/scsi/cxlflash/main.c
@@ -3651,6 +3651,8 @@ static int cxlflash_probe(struct pci_dev *pdev,
 	int rc = 0;
 	int k;
 
+	dev_err_once(&pdev->dev, "DEPRECATION: cxlflash is deprecated and will be removed in a future kernel release\n");
+
 	dev_dbg(&pdev->dev, "%s: Found CXLFLASH with IRQ: %d\n",
 		__func__, pdev->irq);
 
diff --git a/tools/testing/selftests/powerpc/benchmarks/gettimeofday.c b/tools/testing/selftests/powerpc/benchmarks/gettimeofday.c
index 580fcac0a09f..b71ef8a493ed 100644
--- a/tools/testing/selftests/powerpc/benchmarks/gettimeofday.c
+++ b/tools/testing/selftests/powerpc/benchmarks/gettimeofday.c
@@ -20,7 +20,7 @@ static int test_gettimeofday(void)
 		gettimeofday(&tv_end, NULL);
 	}
 
-	timersub(&tv_start, &tv_end, &tv_diff);
+	timersub(&tv_end, &tv_start, &tv_diff);
 
 	printf("time = %.6f\n", tv_diff.tv_sec + (tv_diff.tv_usec) * 1e-6);
 
diff --git a/tools/testing/selftests/powerpc/include/pkeys.h b/tools/testing/selftests/powerpc/include/pkeys.h
index 51729d9a7111..3a0129467de6 100644
--- a/tools/testing/selftests/powerpc/include/pkeys.h
+++ b/tools/testing/selftests/powerpc/include/pkeys.h
@@ -35,10 +35,18 @@
 #define __NR_pkey_alloc		384
 #define __NR_pkey_free		385
 
+#ifndef NT_PPC_PKEY
+#define NT_PPC_PKEY		0x110
+#endif
+
 #define PKEY_BITS_PER_PKEY	2
 #define NR_PKEYS		32
 #define PKEY_BITS_MASK		((1UL << PKEY_BITS_PER_PKEY) - 1)
 
+#define AMR_BITS_PER_PKEY 2
+#define PKEY_REG_BITS (sizeof(u64) * 8)
+#define pkeyshift(pkey) (PKEY_REG_BITS - ((pkey + 1) * AMR_BITS_PER_PKEY))
+
 inline unsigned long pkeyreg_get(void)
 {
 	return mfspr(SPRN_AMR);
diff --git a/tools/testing/selftests/powerpc/ptrace/core-pkey.c b/tools/testing/selftests/powerpc/ptrace/core-pkey.c
index f6da4cb30cd6..f061434af452 100644
--- a/tools/testing/selftests/powerpc/ptrace/core-pkey.c
+++ b/tools/testing/selftests/powerpc/ptrace/core-pkey.c
@@ -16,26 +16,7 @@
 #include <unistd.h>
 #include "ptrace.h"
 #include "child.h"
-
-#ifndef __NR_pkey_alloc
-#define __NR_pkey_alloc		384
-#endif
-
-#ifndef __NR_pkey_free
-#define __NR_pkey_free		385
-#endif
-
-#ifndef NT_PPC_PKEY
-#define NT_PPC_PKEY		0x110
-#endif
-
-#ifndef PKEY_DISABLE_EXECUTE
-#define PKEY_DISABLE_EXECUTE	0x4
-#endif
-
-#define AMR_BITS_PER_PKEY 2
-#define PKEY_REG_BITS (sizeof(u64) * 8)
-#define pkeyshift(pkey) (PKEY_REG_BITS - ((pkey + 1) * AMR_BITS_PER_PKEY))
+#include "pkeys.h"
 
 #define CORE_FILE_LIMIT	(5 * 1024 * 1024)	/* 5 MB should be enough */
 
@@ -61,16 +42,6 @@ struct shared_info {
 	time_t core_time;
 };
 
-static int sys_pkey_alloc(unsigned long flags, unsigned long init_access_rights)
-{
-	return syscall(__NR_pkey_alloc, flags, init_access_rights);
-}
-
-static int sys_pkey_free(int pkey)
-{
-	return syscall(__NR_pkey_free, pkey);
-}
-
 static int increase_core_file_limit(void)
 {
 	struct rlimit rlim;
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-pkey.c b/tools/testing/selftests/powerpc/ptrace/ptrace-pkey.c
index d89474377f11..fc633014424f 100644
--- a/tools/testing/selftests/powerpc/ptrace/ptrace-pkey.c
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-pkey.c
@@ -7,26 +7,7 @@
  */
 #include "ptrace.h"
 #include "child.h"
-
-#ifndef __NR_pkey_alloc
-#define __NR_pkey_alloc		384
-#endif
-
-#ifndef __NR_pkey_free
-#define __NR_pkey_free		385
-#endif
-
-#ifndef NT_PPC_PKEY
-#define NT_PPC_PKEY		0x110
-#endif
-
-#ifndef PKEY_DISABLE_EXECUTE
-#define PKEY_DISABLE_EXECUTE	0x4
-#endif
-
-#define AMR_BITS_PER_PKEY 2
-#define PKEY_REG_BITS (sizeof(u64) * 8)
-#define pkeyshift(pkey) (PKEY_REG_BITS - ((pkey + 1) * AMR_BITS_PER_PKEY))
+#include "pkeys.h"
 
 static const char user_read[] = "[User Read (Running)]";
 static const char user_write[] = "[User Write (Running)]";
@@ -61,11 +42,6 @@ struct shared_info {
 	unsigned long invalid_uamor;
 };
 
-static int sys_pkey_alloc(unsigned long flags, unsigned long init_access_rights)
-{
-	return syscall(__NR_pkey_alloc, flags, init_access_rights);
-}
-
 static int child(struct shared_info *info)
 {
 	unsigned long reg;
diff --git a/tools/testing/selftests/powerpc/vphn/test-vphn.c b/tools/testing/selftests/powerpc/vphn/test-vphn.c
index 81d3069ffb84..f348f54914a9 100644
--- a/tools/testing/selftests/powerpc/vphn/test-vphn.c
+++ b/tools/testing/selftests/powerpc/vphn/test-vphn.c
@@ -275,7 +275,7 @@ static struct test {
 		}
 	},
 	{
-		/* Parse a 32-bit value split accross two consecutives 64-bit
+		/* Parse a 32-bit value split across two consecutives 64-bit
 		 * input values.
 		 */
 		"vphn: 16-bit value followed by 2 x 32-bit values",