Merge tag 'powerpc-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Support for userspace to send requests directly to the on-chip GZIP
   accelerator on Power9.

 - Rework of our lockless page table walking (__find_linux_pte()) to
   make it safe against parallel page table manipulations without
   relying on an IPI for serialisation.

 - A series of fixes & enhancements to make our machine check handling
   more robust.

 - Lots of plumbing to add support for "prefixed" (64-bit) instructions
   on Power10.

 - Support for using huge pages for the linear mapping on 8xx (32-bit).

 - Remove obsolete Xilinx PPC405/PPC440 support, and an associated sound
   driver.

 - Removal of some obsolete 40x platforms and associated cruft.

 - Initial support for booting on Power10.

 - Lots of other small features, cleanups & fixes.

Thanks to: Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan,
Andrey Abramov, Aneesh Kumar K.V, Balamuruhan S, Bharata B Rao, Bulent
Abali, Cédric Le Goater, Chen Zhou, Christian Zigotzky, Christophe
JAILLET, Christophe Leroy, Dmitry Torokhov, Emmanuel Nicolet, Erhard F.,
Gautham R. Shenoy, Geoff Levand, George Spelvin, Greg Kurz, Gustavo A.
R. Silva, Gustavo Walbon, Haren Myneni, Hari Bathini, Joel Stanley,
Jordan Niethe, Kajol Jain, Kees Cook, Leonardo Bras, Madhavan
Srinivasan., Mahesh Salgaonkar, Markus Elfring, Michael Neuling, Michal
Simek, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin,
Oliver O'Halloran, Paul Mackerras, Pingfan Liu, Qian Cai, Ram Pai,
Raphael Moreira Zinsly, Ravi Bangoria, Sam Bobroff, Sandipan Das, Segher
Boessenkool, Stephen Rothwell, Sukadev Bhattiprolu, Tyrel Datwyler,
Wolfram Sang, Xiongfeng Wang.

* tag 'powerpc-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (299 commits)
  powerpc/pseries: Make vio and ibmebus initcalls pseries specific
  cxl: Remove dead Kconfig options
  powerpc: Add POWER10 architected mode
  powerpc/dt_cpu_ftrs: Add MMA feature
  powerpc/dt_cpu_ftrs: Enable Prefixed Instructions
  powerpc/dt_cpu_ftrs: Advertise support for ISA v3.1 if selected
  powerpc: Add support for ISA v3.1
  powerpc: Add new HWCAP bits
  powerpc/64s: Don't set FSCR bits in INIT_THREAD
  powerpc/64s: Save FSCR to init_task.thread.fscr after feature init
  powerpc/64s: Don't let DT CPU features set FSCR_DSCR
  powerpc/64s: Don't init FSCR_DSCR in __init_FSCR()
  powerpc/32s: Fix another build failure with CONFIG_PPC_KUAP_DEBUG
  powerpc/module_64: Use special stub for _mcount() with -mprofile-kernel
  powerpc/module_64: Simplify check for -mprofile-kernel ftrace relocations
  powerpc/module_64: Consolidate ftrace code
  powerpc/32: Disable KASAN with pages bigger than 16k
  powerpc/uaccess: Don't set KUEP by default on book3s/32
  powerpc/uaccess: Don't set KUAP by default on book3s/32
  powerpc/8xx: Reduce time spent in allow_user_access() and friends
  ...

19 files changed, 191 insertions, 212 deletions

diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c
index c5c6487a19d5..7b55811c2a81 100644
--- a/drivers/block/ps3disk.c
+++ b/drivers/block/ps3disk.c
@@ -454,7 +454,6 @@ static int ps3disk_probe(struct ps3_system_bus_device *_dev)
 	queue->queuedata = dev;
 
 	blk_queue_max_hw_sectors(queue, dev->bounce_size >> 9);
-	blk_queue_segment_boundary(queue, -1UL);
 	blk_queue_dma_alignment(queue, dev->blk_size-1);
 	blk_queue_logical_block_size(queue, dev->blk_size);
 
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index d4665fe9ccd2..ac25833eb19e 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -209,7 +209,7 @@ config DTLK
 
 config XILINX_HWICAP
 	tristate "Xilinx HWICAP Support"
-	depends on XILINX_VIRTEX || MICROBLAZE
+	depends on MICROBLAZE
 	help
 	  This option enables support for Xilinx Internal Configuration
 	  Access Port (ICAP) driver.  The ICAP is used on Xilinx Virtex
diff --git a/drivers/cpuidle/cpuidle-pseries.c b/drivers/cpuidle/cpuidle-pseries.c
index 74c247972bb3..6513ef2af66a 100644
--- a/drivers/cpuidle/cpuidle-pseries.c
+++ b/drivers/cpuidle/cpuidle-pseries.c
@@ -19,6 +19,7 @@
 #include <asm/machdep.h>
 #include <asm/firmware.h>
 #include <asm/runlatch.h>
+#include <asm/idle.h>
 #include <asm/plpar_wrappers.h>
 
 struct cpuidle_driver pseries_idle_driver = {
@@ -31,39 +32,15 @@ static struct cpuidle_state *cpuidle_state_table __read_mostly;
 static u64 snooze_timeout __read_mostly;
 static bool snooze_timeout_en __read_mostly;
 
-static inline void idle_loop_prolog(unsigned long *in_purr)
-{
-	ppc64_runlatch_off();
-	*in_purr = mfspr(SPRN_PURR);
-	/*
-	 * Indicate to the HV that we are idle. Now would be
-	 * a good time to find other work to dispatch.
-	 */
-	get_lppaca()->idle = 1;
-}
-
-static inline void idle_loop_epilog(unsigned long in_purr)
-{
-	u64 wait_cycles;
-
-	wait_cycles = be64_to_cpu(get_lppaca()->wait_state_cycles);
-	wait_cycles += mfspr(SPRN_PURR) - in_purr;
-	get_lppaca()->wait_state_cycles = cpu_to_be64(wait_cycles);
-	get_lppaca()->idle = 0;
-
-	ppc64_runlatch_on();
-}
-
 static int snooze_loop(struct cpuidle_device *dev,
 			struct cpuidle_driver *drv,
 			int index)
 {
-	unsigned long in_purr;
 	u64 snooze_exit_time;
 
 	set_thread_flag(TIF_POLLING_NRFLAG);
 
-	idle_loop_prolog(&in_purr);
+	pseries_idle_prolog();
 	local_irq_enable();
 	snooze_exit_time = get_tb() + snooze_timeout;
 
@@ -87,7 +64,7 @@ static int snooze_loop(struct cpuidle_device *dev,
 
 	local_irq_disable();
 
-	idle_loop_epilog(in_purr);
+	pseries_idle_epilog();
 
 	return index;
 }
@@ -113,9 +90,8 @@ static int dedicated_cede_loop(struct cpuidle_device *dev,
 				struct cpuidle_driver *drv,
 				int index)
 {
-	unsigned long in_purr;
 
-	idle_loop_prolog(&in_purr);
+	pseries_idle_prolog();
 	get_lppaca()->donate_dedicated_cpu = 1;
 
 	HMT_medium();
@@ -124,7 +100,7 @@ static int dedicated_cede_loop(struct cpuidle_device *dev,
 	local_irq_disable();
 	get_lppaca()->donate_dedicated_cpu = 0;
 
-	idle_loop_epilog(in_purr);
+	pseries_idle_epilog();
 
 	return index;
 }
@@ -133,9 +109,8 @@ static int shared_cede_loop(struct cpuidle_device *dev,
 			struct cpuidle_driver *drv,
 			int index)
 {
-	unsigned long in_purr;
 
-	idle_loop_prolog(&in_purr);
+	pseries_idle_prolog();
 
 	/*
 	 * Yield the processor to the hypervisor.  We return if
@@ -147,7 +122,7 @@ static int shared_cede_loop(struct cpuidle_device *dev,
 	check_and_cede_processor();
 
 	local_irq_disable();
-	idle_loop_epilog(in_purr);
+	pseries_idle_epilog();
 
 	return index;
 }
diff --git a/drivers/crypto/nx/Makefile b/drivers/crypto/nx/Makefile
index 015155da59c2..bc89a20e5d9d 100644
--- a/drivers/crypto/nx/Makefile
+++ b/drivers/crypto/nx/Makefile
@@ -15,4 +15,4 @@ obj-$(CONFIG_CRYPTO_DEV_NX_COMPRESS_PSERIES) += nx-compress-pseries.o nx-compres
 obj-$(CONFIG_CRYPTO_DEV_NX_COMPRESS_POWERNV) += nx-compress-powernv.o nx-compress.o
 nx-compress-objs := nx-842.o
 nx-compress-pseries-objs := nx-842-pseries.o
-nx-compress-powernv-objs := nx-842-powernv.o
+nx-compress-powernv-objs := nx-common-powernv.o
diff --git a/drivers/crypto/nx/nx-842-powernv.c b/drivers/crypto/nx/nx-common-powernv.c
index c037a2403b82..13c65deda8e9 100644
--- a/drivers/crypto/nx/nx-842-powernv.c
+++ b/drivers/crypto/nx/nx-common-powernv.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
- * Driver for IBM PowerNV 842 compression accelerator
+ * Driver for IBM PowerNV compression accelerator
  *
  * Copyright (C) 2015 Dan Streetman, IBM Corp
  */
@@ -20,7 +20,7 @@
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Dan Streetman <ddstreet@ieee.org>");
-MODULE_DESCRIPTION("842 H/W Compression driver for IBM PowerNV processors");
+MODULE_DESCRIPTION("H/W Compression driver for IBM PowerNV processors");
 MODULE_ALIAS_CRYPTO("842");
 MODULE_ALIAS_CRYPTO("842-nx");
 
@@ -40,9 +40,9 @@ struct nx842_workmem {
 	char padding[WORKMEM_ALIGN]; /* unused, to allow alignment */
 } __packed __aligned(WORKMEM_ALIGN);
 
-struct nx842_coproc {
+struct nx_coproc {
 	unsigned int chip_id;
-	unsigned int ct;
+	unsigned int ct;	/* Can be 842 or GZIP high/normal*/
 	unsigned int ci;	/* Coprocessor instance, used with icswx */
 	struct {
 		struct vas_window *rxwin;
@@ -58,9 +58,16 @@ struct nx842_coproc {
 static DEFINE_PER_CPU(struct vas_window *, cpu_txwin);
 
 /* no cpu hotplug on powernv, so this list never changes after init */
-static LIST_HEAD(nx842_coprocs);
+static LIST_HEAD(nx_coprocs);
 static unsigned int nx842_ct;	/* used in icswx function */
 
+/*
+ * Using same values as in skiboot or coprocessor type representing
+ * in NX workbook.
+ */
+#define NX_CT_GZIP	(2)	/* on P9 and later */
+#define NX_CT_842	(3)
+
 static int (*nx842_powernv_exec)(const unsigned char *in,
 				unsigned int inlen, unsigned char *out,
 				unsigned int *outlenp, void *workmem, int fc);
@@ -666,15 +673,15 @@ static int nx842_powernv_decompress(const unsigned char *in, unsigned int inlen,
 				      wmem, CCW_FC_842_DECOMP_CRC);
 }
 
-static inline void nx842_add_coprocs_list(struct nx842_coproc *coproc,
+static inline void nx_add_coprocs_list(struct nx_coproc *coproc,
 					int chipid)
 {
 	coproc->chip_id = chipid;
 	INIT_LIST_HEAD(&coproc->list);
-	list_add(&coproc->list, &nx842_coprocs);
+	list_add(&coproc->list, &nx_coprocs);
 }
 
-static struct vas_window *nx842_alloc_txwin(struct nx842_coproc *coproc)
+static struct vas_window *nx_alloc_txwin(struct nx_coproc *coproc)
 {
 	struct vas_window *txwin = NULL;
 	struct vas_tx_win_attr txattr;
@@ -685,7 +692,6 @@ static struct vas_window *nx842_alloc_txwin(struct nx842_coproc *coproc)
 	 */
 	vas_init_tx_win_attr(&txattr, coproc->ct);
 	txattr.lpid = 0;	/* lpid is 0 for kernel requests */
-	txattr.pid = 0;		/* pid is 0 for kernel requests */
 
 	/*
 	 * Open a VAS send window which is used to send request to NX.
@@ -704,9 +710,9 @@ static struct vas_window *nx842_alloc_txwin(struct nx842_coproc *coproc)
  * cpu_txwin is used in copy/paste operation for each compression /
  * decompression request.
  */
-static int nx842_open_percpu_txwins(void)
+static int nx_open_percpu_txwins(void)
 {
-	struct nx842_coproc *coproc, *n;
+	struct nx_coproc *coproc, *n;
 	unsigned int i, chip_id;
 
 	for_each_possible_cpu(i) {
@@ -714,17 +720,18 @@ static int nx842_open_percpu_txwins(void)
 
 		chip_id = cpu_to_chip_id(i);
 
-		list_for_each_entry_safe(coproc, n, &nx842_coprocs, list) {
+		list_for_each_entry_safe(coproc, n, &nx_coprocs, list) {
 			/*
 			 * Kernel requests use only high priority FIFOs. So
 			 * open send windows for these FIFOs.
+			 * GZIP is not supported in kernel right now.
 			 */
 
 			if (coproc->ct != VAS_COP_TYPE_842_HIPRI)
 				continue;
 
 			if (coproc->chip_id == chip_id) {
-				txwin = nx842_alloc_txwin(coproc);
+				txwin = nx_alloc_txwin(coproc);
 				if (IS_ERR(txwin))
 					return PTR_ERR(txwin);
 
@@ -743,13 +750,28 @@ static int nx842_open_percpu_txwins(void)
 	return 0;
 }
 
+static int __init nx_set_ct(struct nx_coproc *coproc, const char *priority,
+				int high, int normal)
+{
+	if (!strcmp(priority, "High"))
+		coproc->ct = high;
+	else if (!strcmp(priority, "Normal"))
+		coproc->ct = normal;
+	else {
+		pr_err("Invalid RxFIFO priority value\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static int __init vas_cfg_coproc_info(struct device_node *dn, int chip_id,
-					int vasid, int *ct)
+					int vasid, int type, int *ct)
 {
 	struct vas_window *rxwin = NULL;
 	struct vas_rx_win_attr rxattr;
-	struct nx842_coproc *coproc;
 	u32 lpid, pid, tid, fifo_size;
+	struct nx_coproc *coproc;
 	u64 rx_fifo;
 	const char *priority;
 	int ret;
@@ -794,15 +816,15 @@ static int __init vas_cfg_coproc_info(struct device_node *dn, int chip_id,
 	if (!coproc)
 		return -ENOMEM;
 
-	if (!strcmp(priority, "High"))
-		coproc->ct = VAS_COP_TYPE_842_HIPRI;
-	else if (!strcmp(priority, "Normal"))
-		coproc->ct = VAS_COP_TYPE_842;
-	else {
-		pr_err("Invalid RxFIFO priority value\n");
-		ret =  -EINVAL;
+	if (type == NX_CT_842)
+		ret = nx_set_ct(coproc, priority, VAS_COP_TYPE_842_HIPRI,
+			VAS_COP_TYPE_842);
+	else if (type == NX_CT_GZIP)
+		ret = nx_set_ct(coproc, priority, VAS_COP_TYPE_GZIP_HIPRI,
+				VAS_COP_TYPE_GZIP);
+
+	if (ret)
 		goto err_out;
-	}
 
 	vas_init_rx_win_attr(&rxattr, coproc->ct);
 	rxattr.rx_fifo = (void *)rx_fifo;
@@ -830,7 +852,7 @@ static int __init vas_cfg_coproc_info(struct device_node *dn, int chip_id,
 
 	coproc->vas.rxwin = rxwin;
 	coproc->vas.id = vasid;
-	nx842_add_coprocs_list(coproc, chip_id);
+	nx_add_coprocs_list(coproc, chip_id);
 
 	/*
 	 * (lpid, pid, tid) combination has to be unique for each
@@ -848,13 +870,47 @@ err_out:
 	return ret;
 }
 
+static int __init nx_coproc_init(int chip_id, int ct_842, int ct_gzip)
+{
+	int ret = 0;
+
+	if (opal_check_token(OPAL_NX_COPROC_INIT)) {
+		ret = opal_nx_coproc_init(chip_id, ct_842);
+
+		if (!ret)
+			ret = opal_nx_coproc_init(chip_id, ct_gzip);
+
+		if (ret) {
+			ret = opal_error_code(ret);
+			pr_err("Failed to initialize NX for chip(%d): %d\n",
+				chip_id, ret);
+		}
+	} else
+		pr_warn("Firmware doesn't support NX initialization\n");
+
+	return ret;
+}
+
+static int __init find_nx_device_tree(struct device_node *dn, int chip_id,
+					int vasid, int type, char *devname,
+					int *ct)
+{
+	int ret = 0;
+
+	if (of_device_is_compatible(dn, devname)) {
+		ret  = vas_cfg_coproc_info(dn, chip_id, vasid, type, ct);
+		if (ret)
+			of_node_put(dn);
+	}
+
+	return ret;
+}
 
-static int __init nx842_powernv_probe_vas(struct device_node *pn)
+static int __init nx_powernv_probe_vas(struct device_node *pn)
 {
-	struct device_node *dn;
 	int chip_id, vasid, ret = 0;
-	int nx_fifo_found = 0;
-	int uninitialized_var(ct);
+	int ct_842 = 0, ct_gzip = 0;
+	struct device_node *dn;
 
 	chip_id = of_get_ibm_chip_id(pn);
 	if (chip_id < 0) {
@@ -869,40 +925,33 @@ static int __init nx842_powernv_probe_vas(struct device_node *pn)
 	}
 
 	for_each_child_of_node(pn, dn) {
-		if (of_device_is_compatible(dn, "ibm,p9-nx-842")) {
-			ret = vas_cfg_coproc_info(dn, chip_id, vasid, &ct);
-			if (ret) {
-				of_node_put(dn);
-				return ret;
-			}
-			nx_fifo_found++;
-		}
+		ret = find_nx_device_tree(dn, chip_id, vasid, NX_CT_842,
+					"ibm,p9-nx-842", &ct_842);
+
+		if (!ret)
+			ret = find_nx_device_tree(dn, chip_id, vasid,
+				NX_CT_GZIP, "ibm,p9-nx-gzip", &ct_gzip);
+
+		if (ret)
+			return ret;
 	}
 
-	if (!nx_fifo_found) {
-		pr_err("NX842 FIFO nodes are missing\n");
+	if (!ct_842 || !ct_gzip) {
+		pr_err("NX FIFO nodes are missing\n");
 		return -EINVAL;
 	}
 
 	/*
 	 * Initialize NX instance for both high and normal priority FIFOs.
 	 */
-	if (opal_check_token(OPAL_NX_COPROC_INIT)) {
-		ret = opal_nx_coproc_init(chip_id, ct);
-		if (ret) {
-			pr_err("Failed to initialize NX for chip(%d): %d\n",
-				chip_id, ret);
-			ret = opal_error_code(ret);
-		}
-	} else
-		pr_warn("Firmware doesn't support NX initialization\n");
+	ret = nx_coproc_init(chip_id, ct_842, ct_gzip);
 
 	return ret;
 }
 
 static int __init nx842_powernv_probe(struct device_node *dn)
 {
-	struct nx842_coproc *coproc;
+	struct nx_coproc *coproc;
 	unsigned int ct, ci;
 	int chip_id;
 
@@ -922,13 +971,13 @@ static int __init nx842_powernv_probe(struct device_node *dn)
 		return -EINVAL;
 	}
 
-	coproc = kmalloc(sizeof(*coproc), GFP_KERNEL);
+	coproc = kzalloc(sizeof(*coproc), GFP_KERNEL);
 	if (!coproc)
 		return -ENOMEM;
 
 	coproc->ct = ct;
 	coproc->ci = ci;
-	nx842_add_coprocs_list(coproc, chip_id);
+	nx_add_coprocs_list(coproc, chip_id);
 
 	pr_info("coprocessor found on chip %d, CT %d CI %d\n", chip_id, ct, ci);
 
@@ -941,9 +990,9 @@ static int __init nx842_powernv_probe(struct device_node *dn)
 	return 0;
 }
 
-static void nx842_delete_coprocs(void)
+static void nx_delete_coprocs(void)
 {
-	struct nx842_coproc *coproc, *n;
+	struct nx_coproc *coproc, *n;
 	struct vas_window *txwin;
 	int i;
 
@@ -955,10 +1004,10 @@ static void nx842_delete_coprocs(void)
 		if (txwin)
 			vas_win_close(txwin);
 
-		per_cpu(cpu_txwin, i) = 0;
+		per_cpu(cpu_txwin, i) = NULL;
 	}
 
-	list_for_each_entry_safe(coproc, n, &nx842_coprocs, list) {
+	list_for_each_entry_safe(coproc, n, &nx_coprocs, list) {
 		if (coproc->vas.rxwin)
 			vas_win_close(coproc->vas.rxwin);
 
@@ -1002,7 +1051,7 @@ static struct crypto_alg nx842_powernv_alg = {
 	.coa_decompress		= nx842_crypto_decompress } }
 };
 
-static __init int nx842_powernv_init(void)
+static __init int nx_compress_powernv_init(void)
 {
 	struct device_node *dn;
 	int ret;
@@ -1017,15 +1066,15 @@ static __init int nx842_powernv_init(void)
 	BUILD_BUG_ON(DDE_BUFFER_SIZE_MULT % DDE_BUFFER_LAST_MULT);
 
 	for_each_compatible_node(dn, NULL, "ibm,power9-nx") {
-		ret = nx842_powernv_probe_vas(dn);
+		ret = nx_powernv_probe_vas(dn);
 		if (ret) {
-			nx842_delete_coprocs();
+			nx_delete_coprocs();
 			of_node_put(dn);
 			return ret;
 		}
 	}
 
-	if (list_empty(&nx842_coprocs)) {
+	if (list_empty(&nx_coprocs)) {
 		for_each_compatible_node(dn, NULL, "ibm,power-nx")
 			nx842_powernv_probe(dn);
 
@@ -1034,9 +1083,25 @@ static __init int nx842_powernv_init(void)
 
 		nx842_powernv_exec = nx842_exec_icswx;
 	} else {
-		ret = nx842_open_percpu_txwins();
+		/*
+		 * Register VAS user space API for NX GZIP so
+		 * that user space can use GZIP engine.
+		 * Using high FIFO priority for kernel requests and
+		 * normal FIFO priority is assigned for userspace.
+		 * 842 compression is supported only in kernel.
+		 */
+		ret = vas_register_coproc_api(THIS_MODULE, VAS_COP_TYPE_GZIP,
+						"nx-gzip");
+
+		/*
+		 * GZIP is not supported in kernel right now.
+		 * So open tx windows only for 842.
+		 */
+		if (!ret)
+			ret = nx_open_percpu_txwins();
+
 		if (ret) {
-			nx842_delete_coprocs();
+			nx_delete_coprocs();
 			return ret;
 		}
 
@@ -1045,18 +1110,27 @@ static __init int nx842_powernv_init(void)
 
 	ret = crypto_register_alg(&nx842_powernv_alg);
 	if (ret) {
-		nx842_delete_coprocs();
+		nx_delete_coprocs();
 		return ret;
 	}
 
 	return 0;
 }
-module_init(nx842_powernv_init);
+module_init(nx_compress_powernv_init);
 
-static void __exit nx842_powernv_exit(void)
+static void __exit nx_compress_powernv_exit(void)
 {
+	/*
+	 * GZIP engine is supported only in power9 or later and nx842_ct
+	 * is used on power8 (icswx).
+	 * VAS API for NX GZIP is registered during init for user space
+	 * use. So delete this API use for GZIP engine.
+	 */
+	if (!nx842_ct)
+		vas_unregister_coproc_api();
+
 	crypto_unregister_alg(&nx842_powernv_alg);
 
-	nx842_delete_coprocs();
+	nx_delete_coprocs();
 }
-module_exit(nx842_powernv_exit);
+module_exit(nx_compress_powernv_exit);
diff --git a/drivers/input/serio/i8042-ppcio.h b/drivers/input/serio/i8042-ppcio.h
deleted file mode 100644
index 391f94d9e47d..000000000000
--- a/drivers/input/serio/i8042-ppcio.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-#ifndef _I8042_PPCIO_H
-#define _I8042_PPCIO_H
-
-
-#if defined(CONFIG_WALNUT)
-
-#define I8042_KBD_IRQ 25
-#define I8042_AUX_IRQ 26
-
-#define I8042_KBD_PHYS_DESC "walnutps2/serio0"
-#define I8042_AUX_PHYS_DESC "walnutps2/serio1"
-#define I8042_MUX_PHYS_DESC "walnutps2/serio%d"
-
-extern void *kb_cs;
-extern void *kb_data;
-
-#define I8042_COMMAND_REG (*(int *)kb_cs)
-#define I8042_DATA_REG (*(int *)kb_data)
-
-static inline int i8042_read_data(void)
-{
-	return readb(kb_data);
-}
-
-static inline int i8042_read_status(void)
-{
-	return readb(kb_cs);
-}
-
-static inline void i8042_write_data(int val)
-{
-	writeb(val, kb_data);
-}
-
-static inline void i8042_write_command(int val)
-{
-	writeb(val, kb_cs);
-}
-
-static inline int i8042_platform_init(void)
-{
-	i8042_reset = I8042_RESET_ALWAYS;
-	return 0;
-}
-
-static inline void i8042_platform_exit(void)
-{
-}
-
-#else
-
-#include "i8042-io.h"
-
-#endif
-
-#endif /* _I8042_PPCIO_H */
diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h
index 38dc27ad3c18..eb376700dfff 100644
--- a/drivers/input/serio/i8042.h
+++ b/drivers/input/serio/i8042.h
@@ -17,8 +17,6 @@
 #include "i8042-ip22io.h"
 #elif defined(CONFIG_SNI_RM)
 #include "i8042-snirm.h"
-#elif defined(CONFIG_PPC)
-#include "i8042-ppcio.h"
 #elif defined(CONFIG_SPARC)
 #include "i8042-sparcio.h"
 #elif defined(CONFIG_X86) || defined(CONFIG_IA64)
diff --git a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig
index cbd46c1c5bf7..fcb9d7bd5bd0 100644
--- a/drivers/macintosh/Kconfig
+++ b/drivers/macintosh/Kconfig
@@ -247,7 +247,6 @@ config PMAC_RACKMETER
 config SENSORS_AMS
 	tristate "Apple Motion Sensor driver"
 	depends on PPC_PMAC && !PPC64 && INPUT && ((ADB_PMU && I2C = y) || (ADB_PMU && !I2C) || I2C)
-	select INPUT_POLLDEV
 	help
 	  Support for the motion sensor included in PowerBooks. Includes
 	  implementations for PMU and I2C.
diff --git a/drivers/macintosh/ams/ams-input.c b/drivers/macintosh/ams/ams-input.c
index 06a96b3f11de..0da493d449b2 100644
--- a/drivers/macintosh/ams/ams-input.c
+++ b/drivers/macintosh/ams/ams-input.c
@@ -25,9 +25,8 @@ MODULE_PARM_DESC(invert, "Invert input data on X and Y axis");
 
 static DEFINE_MUTEX(ams_input_mutex);
 
-static void ams_idev_poll(struct input_polled_dev *dev)
+static void ams_idev_poll(struct input_dev *idev)
 {
-	struct input_dev *idev = dev->input;
 	s8 x, y, z;
 
 	mutex_lock(&ams_info.lock);
@@ -59,14 +58,10 @@ static int ams_input_enable(void)
 	ams_info.ycalib = y;
 	ams_info.zcalib = z;
 
-	ams_info.idev = input_allocate_polled_device();
-	if (!ams_info.idev)
+	input = input_allocate_device();
+	if (!input)
 		return -ENOMEM;
 
-	ams_info.idev->poll = ams_idev_poll;
-	ams_info.idev->poll_interval = 25;
-
-	input = ams_info.idev->input;
 	input->name = "Apple Motion Sensor";
 	input->id.bustype = ams_info.bustype;
 	input->id.vendor = 0;
@@ -75,28 +70,32 @@ static int ams_input_enable(void)
 	input_set_abs_params(input, ABS_X, -50, 50, 3, 0);
 	input_set_abs_params(input, ABS_Y, -50, 50, 3, 0);
 	input_set_abs_params(input, ABS_Z, -50, 50, 3, 0);
+	input_set_capability(input, EV_KEY, BTN_TOUCH);
 
-	set_bit(EV_ABS, input->evbit);
-	set_bit(EV_KEY, input->evbit);
-	set_bit(BTN_TOUCH, input->keybit);
+	error = input_setup_polling(input, ams_idev_poll);
+	if (error)
+		goto err_free_input;
 
-	error = input_register_polled_device(ams_info.idev);
-	if (error) {
-		input_free_polled_device(ams_info.idev);
-		ams_info.idev = NULL;
-		return error;
-	}
+	input_set_poll_interval(input, 25);
 
+	error = input_register_device(input);
+	if (error)
+		goto err_free_input;
+
+	ams_info.idev = input;
 	joystick = true;
 
 	return 0;
+
+err_free_input:
+	input_free_device(input);
+	return error;
 }
 
 static void ams_input_disable(void)
 {
 	if (ams_info.idev) {
-		input_unregister_polled_device(ams_info.idev);
-		input_free_polled_device(ams_info.idev);
+		input_unregister_device(ams_info.idev);
 		ams_info.idev = NULL;
 	}
 
diff --git a/drivers/macintosh/ams/ams.h b/drivers/macintosh/ams/ams.h
index fe8d596f9845..935bdd9cd9a6 100644
--- a/drivers/macintosh/ams/ams.h
+++ b/drivers/macintosh/ams/ams.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/i2c.h>
-#include <linux/input-polldev.h>
+#include <linux/input.h>
 #include <linux/kthread.h>
 #include <linux/mutex.h>
 #include <linux/spinlock.h>
@@ -51,7 +51,7 @@ struct ams {
 #endif
 
 	/* Joystick emulation */
-	struct input_polled_dev *idev;
+	struct input_dev *idev;
 	__u16 bustype;
 
 	/* calibrated null values */
diff --git a/drivers/macintosh/windfarm_pm112.c b/drivers/macintosh/windfarm_pm112.c
index 4150301a89a5..e8377ce0a95a 100644
--- a/drivers/macintosh/windfarm_pm112.c
+++ b/drivers/macintosh/windfarm_pm112.c
@@ -132,14 +132,6 @@ static int create_cpu_loop(int cpu)
 	s32 tmax;
 	int fmin;
 
-	/* Get PID params from the appropriate SAT */
-	hdr = smu_sat_get_sdb_partition(chip, 0xC8 + core, NULL);
-	if (hdr == NULL) {
-		printk(KERN_WARNING"windfarm: can't get CPU PID fan config\n");
-		return -EINVAL;
-	}
-	piddata = (struct smu_sdbp_cpupiddata *)&hdr[1];
-
 	/* Get FVT params to get Tmax; if not found, assume default */
 	hdr = smu_sat_get_sdb_partition(chip, 0xC4 + core, NULL);
 	if (hdr) {
@@ -152,6 +144,16 @@ static int create_cpu_loop(int cpu)
 	if (tmax < cpu_all_tmax)
 		cpu_all_tmax = tmax;
 
+	kfree(hdr);
+
+	/* Get PID params from the appropriate SAT */
+	hdr = smu_sat_get_sdb_partition(chip, 0xC8 + core, NULL);
+	if (hdr == NULL) {
+		printk(KERN_WARNING"windfarm: can't get CPU PID fan config\n");
+		return -EINVAL;
+	}
+	piddata = (struct smu_sdbp_cpupiddata *)&hdr[1];
+
 	/*
 	 * Darwin has a minimum fan speed of 1000 rpm for the 4-way and
 	 * 515 for the 2-way.  That appears to be overkill, so for now,
@@ -174,6 +176,9 @@ static int create_cpu_loop(int cpu)
 		pid.min = fmin;
 
 	wf_cpu_pid_init(&cpu_pid[cpu], &pid);
+
+	kfree(hdr);
+
 	return 0;
 }
 
diff --git a/drivers/misc/cxl/Kconfig b/drivers/misc/cxl/Kconfig
index 39eec9031487..51aecafdcbdf 100644
--- a/drivers/misc/cxl/Kconfig
+++ b/drivers/misc/cxl/Kconfig
@@ -7,18 +7,10 @@ config CXL_BASE
 	bool
 	select PPC_COPRO_BASE
 
-config CXL_AFU_DRIVER_OPS
-	bool
-
-config CXL_LIB
-	bool
-
 config CXL
 	tristate "Support for IBM Coherent Accelerators (CXL)"
 	depends on PPC_POWERNV && PCI_MSI && EEH
 	select CXL_BASE
-	select CXL_AFU_DRIVER_OPS
-	select CXL_LIB
 	default m
 	help
 	  Select this option to enable driver support for IBM Coherent
diff --git a/drivers/misc/ocxl/context.c b/drivers/misc/ocxl/context.c
index de8a66b9d76b..c21f65a5c762 100644
--- a/drivers/misc/ocxl/context.c
+++ b/drivers/misc/ocxl/context.c
@@ -287,7 +287,7 @@ void ocxl_context_free(struct ocxl_context *ctx)
 
 	ocxl_afu_irq_free_all(ctx);
 	idr_destroy(&ctx->irq_idr);
-	/* reference to the AFU taken in ocxl_context_init */
+	/* reference to the AFU taken in ocxl_context_alloc() */
 	ocxl_afu_put(ctx->afu);
 	kfree(ctx);
 }
diff --git a/drivers/net/ethernet/toshiba/ps3_gelic_net.c b/drivers/net/ethernet/toshiba/ps3_gelic_net.c
index 310e6839c6e5..d9a5722f561b 100644
--- a/drivers/net/ethernet/toshiba/ps3_gelic_net.c
+++ b/drivers/net/ethernet/toshiba/ps3_gelic_net.c
@@ -382,8 +382,6 @@ static int gelic_descr_prepare_rx(struct gelic_card *card,
 	descr->skb = dev_alloc_skb(bufsize + GELIC_NET_RXBUF_ALIGN - 1);
 	if (!descr->skb) {
 		descr->buf_addr = 0; /* tell DMAC don't touch memory */
-		dev_info(ctodev(card),
-			 "%s:allocate skb failed !!\n", __func__);
 		return -ENOMEM;
 	}
 	descr->buf_size = cpu_to_be32(bufsize);
diff --git a/drivers/ps3/ps3-lpm.c b/drivers/ps3/ps3-lpm.c
index 83c45659bc9d..e54aa2d82f50 100644
--- a/drivers/ps3/ps3-lpm.c
+++ b/drivers/ps3/ps3-lpm.c
@@ -1096,8 +1096,8 @@ int ps3_lpm_open(enum ps3_lpm_tb_type tb_type, void *tb_cache,
 		lpm_priv->tb_cache_internal = NULL;
 		lpm_priv->tb_cache = NULL;
 	} else if (tb_cache) {
-		if (tb_cache != (void *)_ALIGN_UP((unsigned long)tb_cache, 128)
-			|| tb_cache_size != _ALIGN_UP(tb_cache_size, 128)) {
+		if (tb_cache != (void *)ALIGN((unsigned long)tb_cache, 128)
+			|| tb_cache_size != ALIGN(tb_cache_size, 128)) {
 			dev_err(sbd_core(), "%s:%u: unaligned tb_cache\n",
 				__func__, __LINE__);
 			result = -EINVAL;
@@ -1111,12 +1111,10 @@ int ps3_lpm_open(enum ps3_lpm_tb_type tb_type, void *tb_cache,
 		lpm_priv->tb_cache_internal = kzalloc(
 			lpm_priv->tb_cache_size + 127, GFP_KERNEL);
 		if (!lpm_priv->tb_cache_internal) {
-			dev_err(sbd_core(), "%s:%u: alloc internal tb_cache "
-				"failed\n", __func__, __LINE__);
 			result = -ENOMEM;
 			goto fail_malloc;
 		}
-		lpm_priv->tb_cache = (void *)_ALIGN_UP(
+		lpm_priv->tb_cache = (void *)ALIGN(
 			(unsigned long)lpm_priv->tb_cache_internal, 128);
 	}
 
diff --git a/drivers/ps3/ps3-vuart.c b/drivers/ps3/ps3-vuart.c
index ddaa5ea5801a..4ed131eaff51 100644
--- a/drivers/ps3/ps3-vuart.c
+++ b/drivers/ps3/ps3-vuart.c
@@ -858,13 +858,13 @@ static int ps3_vuart_handle_port_interrupt(struct ps3_system_bus_device *dev)
 	return 0;
 }
 
-struct vuart_bus_priv {
+static struct vuart_bus_priv {
 	struct ports_bmp *bmp;
 	unsigned int virq;
 	struct mutex probe_mutex;
 	int use_count;
 	struct ps3_system_bus_device *devices[PORT_COUNT];
-} static vuart_bus_priv;
+} vuart_bus_priv;
 
 /**
  * ps3_vuart_irq_handler - first stage interrupt handler
@@ -917,7 +917,6 @@ static int ps3_vuart_bus_interrupt_get(void)
 	vuart_bus_priv.bmp = kzalloc(sizeof(struct ports_bmp), GFP_KERNEL);
 
 	if (!vuart_bus_priv.bmp) {
-		pr_debug("%s:%d: kzalloc failed.\n", __func__, __LINE__);
 		result = -ENOMEM;
 		goto fail_bmp_malloc;
 	}
diff --git a/drivers/vfio/pci/vfio_pci_nvlink2.c b/drivers/vfio/pci/vfio_pci_nvlink2.c
index ed20d73cc27c..65c61710c0e9 100644
--- a/drivers/vfio/pci/vfio_pci_nvlink2.c
+++ b/drivers/vfio/pci/vfio_pci_nvlink2.c
@@ -67,7 +67,7 @@ static size_t vfio_pci_nvgpu_rw(struct vfio_pci_device *vdev,
 	 *
 	 * This is not fast path anyway.
 	 */
-	sizealigned = _ALIGN_UP(posoff + count, PAGE_SIZE);
+	sizealigned = ALIGN(posoff + count, PAGE_SIZE);
 	ptr = ioremap_cache(data->gpu_hpa + posaligned, sizealigned);
 	if (!ptr)
 		return -EFAULT;
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index fa88e8b9a83d..844ada978bb7 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -2008,7 +2008,7 @@ config FB_PS3_DEFAULT_SIZE_M
 
 config FB_XILINX
 	tristate "Xilinx frame buffer support"
-	depends on FB && (XILINX_VIRTEX || MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP)
+	depends on FB && (MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP)
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
diff --git a/drivers/video/fbdev/ps3fb.c b/drivers/video/fbdev/ps3fb.c
index 834f63edf700..9df78fb77267 100644
--- a/drivers/video/fbdev/ps3fb.c
+++ b/drivers/video/fbdev/ps3fb.c
@@ -44,7 +44,7 @@
 #define GPU_CMD_BUF_SIZE			(2 * 1024 * 1024)
 #define GPU_FB_START				(64 * 1024)
 #define GPU_IOIF				(0x0d000000UL)
-#define GPU_ALIGN_UP(x)				_ALIGN_UP((x), 64)
+#define GPU_ALIGN_UP(x)				ALIGN((x), 64)
 #define GPU_MAX_LINE_LENGTH			(65536 - 64)
 
 #define GPU_INTR_STATUS_VSYNC_0			0	/* vsync on head A */
@@ -1015,7 +1015,7 @@ static int ps3fb_probe(struct ps3_system_bus_device *dev)
 	}
 #endif
 
-	max_ps3fb_size = _ALIGN_UP(GPU_IOIF, 256*1024*1024) - GPU_IOIF;
+	max_ps3fb_size = ALIGN(GPU_IOIF, 256*1024*1024) - GPU_IOIF;
 	if (ps3fb_videomemory.size > max_ps3fb_size) {
 		dev_info(&dev->core, "Limiting ps3fb mem size to %lu bytes\n",
 			 max_ps3fb_size);