diff --git a/arch/sparc/include/asm/cpudata_64.h b/arch/sparc/include/asm/cpudata_64.h
index 666d6b5..9c3fc03 100644
--- a/arch/sparc/include/asm/cpudata_64.h
+++ b/arch/sparc/include/asm/cpudata_64.h
@@ -28,7 +28,7 @@
 	unsigned short	sock_id;	/* physical package */
 	unsigned short	core_id;
 	unsigned short  max_cache_id;	/* groupings of highest shared cache */
-	unsigned short	proc_id;	/* strand (aka HW thread) id */
+	signed short	proc_id;	/* strand (aka HW thread) id */
 } cpuinfo_sparc;
 
 DECLARE_PER_CPU(cpuinfo_sparc, __cpu_data);
diff --git a/arch/sparc/include/uapi/asm/unistd.h b/arch/sparc/include/uapi/asm/unistd.h
index 09acf0d..45b4bf1 100644
--- a/arch/sparc/include/uapi/asm/unistd.h
+++ b/arch/sparc/include/uapi/asm/unistd.h
@@ -427,8 +427,9 @@
 #define __NR_preadv2		358
 #define __NR_pwritev2		359
 #define __NR_statx		360
+#define __NR_io_pgetevents	361
 
-#define NR_syscalls		361
+#define NR_syscalls		362
 
 /* Bitmask values returned from kern_features system call.  */
 #define KERN_FEATURE_MIXED_MODE_STACK	0x00000001
diff --git a/arch/sparc/kernel/auxio_64.c b/arch/sparc/kernel/auxio_64.c
index cc42225..4e8f56c 100644
--- a/arch/sparc/kernel/auxio_64.c
+++ b/arch/sparc/kernel/auxio_64.c
@@ -115,8 +115,8 @@
 		auxio_devtype = AUXIO_TYPE_SBUS;
 		size = 1;
 	} else {
-		printk("auxio: Unknown parent bus type [%pOFn]\n",
-		       dp->parent);
+		printk("auxio: Unknown parent bus type [%s]\n",
+		       dp->parent->name);
 		return -ENODEV;
 	}
 	auxio_register = of_ioremap(&dev->resource[0], 0, size, "auxio");
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index d3149ba..67b3e6b 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -24,6 +24,7 @@
 #include <asm/cpudata.h>
 #include <linux/uaccess.h>
 #include <linux/atomic.h>
+#include <linux/sched/clock.h>
 #include <asm/nmi.h>
 #include <asm/pcr.h>
 #include <asm/cacheflush.h>
@@ -927,6 +928,8 @@
 			sparc_perf_event_update(cp, &cp->hw,
 						cpuc->current_idx[i]);
 			cpuc->current_idx[i] = PIC_NO_INDEX;
+			if (cp->hw.state & PERF_HES_STOPPED)
+				cp->hw.state |= PERF_HES_ARCH;
 		}
 	}
 }
@@ -959,10 +962,12 @@
 
 		enc = perf_event_get_enc(cpuc->events[i]);
 		cpuc->pcr[0] &= ~mask_for_index(idx);
-		if (hwc->state & PERF_HES_STOPPED)
+		if (hwc->state & PERF_HES_ARCH) {
 			cpuc->pcr[0] |= nop_for_index(idx);
-		else
+		} else {
 			cpuc->pcr[0] |= event_encoding(enc, idx);
+			hwc->state = 0;
+		}
 	}
 out:
 	cpuc->pcr[0] |= cpuc->event[0]->hw.config_base;
@@ -988,6 +993,9 @@
 
 		cpuc->current_idx[i] = idx;
 
+		if (cp->hw.state & PERF_HES_ARCH)
+			continue;
+
 		sparc_pmu_start(cp, PERF_EF_RELOAD);
 	}
 out:
@@ -1079,6 +1087,8 @@
 	event->hw.state = 0;
 
 	sparc_pmu_enable_event(cpuc, &event->hw, idx);
+
+	perf_event_update_userpage(event);
 }
 
 static void sparc_pmu_stop(struct perf_event *event, int flags)
@@ -1371,9 +1381,9 @@
 	cpuc->events[n0] = event->hw.event_base;
 	cpuc->current_idx[n0] = PIC_NO_INDEX;
 
-	event->hw.state = PERF_HES_UPTODATE;
+	event->hw.state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
 	if (!(ef_flags & PERF_EF_START))
-		event->hw.state |= PERF_HES_STOPPED;
+		event->hw.state |= PERF_HES_ARCH;
 
 	/*
 	 * If group events scheduling transaction was started,
@@ -1603,6 +1613,8 @@
 	struct perf_sample_data data;
 	struct cpu_hw_events *cpuc;
 	struct pt_regs *regs;
+	u64 finish_clock;
+	u64 start_clock;
 	int i;
 
 	if (!atomic_read(&active_events))
@@ -1616,6 +1628,8 @@
 		return NOTIFY_DONE;
 	}
 
+	start_clock = sched_clock();
+
 	regs = args->regs;
 
 	cpuc = this_cpu_ptr(&cpu_hw_events);
@@ -1654,6 +1668,10 @@
 			sparc_pmu_stop(event, 0);
 	}
 
+	finish_clock = sched_clock();
+
+	perf_sample_event_took(finish_clock - start_clock);
+
 	return NOTIFY_STOP;
 }
 
diff --git a/arch/sparc/kernel/power.c b/arch/sparc/kernel/power.c
index d941875..92627ab 100644
--- a/arch/sparc/kernel/power.c
+++ b/arch/sparc/kernel/power.c
@@ -41,8 +41,8 @@
 
 	power_reg = of_ioremap(res, 0, 0x4, "power");
 
-	printk(KERN_INFO "%pOFn: Control reg at %llx\n",
-	       op->dev.of_node, res->start);
+	printk(KERN_INFO "%s: Control reg at %llx\n",
+	       op->dev.of_node->name, res->start);
 
 	if (has_button_interrupt(irq, op->dev.of_node)) {
 		if (request_irq(irq,
diff --git a/arch/sparc/kernel/prom_32.c b/arch/sparc/kernel/prom_32.c
index 17c87d2..b51cbb9 100644
--- a/arch/sparc/kernel/prom_32.c
+++ b/arch/sparc/kernel/prom_32.c
@@ -68,8 +68,8 @@
 		return;
 
 	regs = rprop->value;
-	sprintf(tmp_buf, "%pOFn@%x,%x",
-		dp,
+	sprintf(tmp_buf, "%s@%x,%x",
+		dp->name,
 		regs->which_io, regs->phys_addr);
 }
 
@@ -84,8 +84,8 @@
 		return;
 
 	regs = prop->value;
-	sprintf(tmp_buf, "%pOFn@%x,%x",
-		dp,
+	sprintf(tmp_buf, "%s@%x,%x",
+		dp->name,
 		regs->which_io,
 		regs->phys_addr);
 }
@@ -104,13 +104,13 @@
 	regs = prop->value;
 	devfn = (regs->phys_hi >> 8) & 0xff;
 	if (devfn & 0x07) {
-		sprintf(tmp_buf, "%pOFn@%x,%x",
-			dp,
+		sprintf(tmp_buf, "%s@%x,%x",
+			dp->name,
 			devfn >> 3,
 			devfn & 0x07);
 	} else {
-		sprintf(tmp_buf, "%pOFn@%x",
-			dp,
+		sprintf(tmp_buf, "%s@%x",
+			dp->name,
 			devfn >> 3);
 	}
 }
@@ -127,8 +127,8 @@
 
 	regs = prop->value;
 
-	sprintf(tmp_buf, "%pOFn@%x,%x",
-		dp,
+	sprintf(tmp_buf, "%s@%x,%x",
+		dp->name,
 		regs->which_io, regs->phys_addr);
 }
 
@@ -167,8 +167,8 @@
 		return;
 	device = prop->value;
 
-	sprintf(tmp_buf, "%pOFn:%d:%d@%x,%x",
-		dp, *vendor, *device,
+	sprintf(tmp_buf, "%s:%d:%d@%x,%x",
+		dp->name, *vendor, *device,
 		*intr, reg0);
 }
 
@@ -201,7 +201,7 @@
 	tmp_buf[0] = '\0';
 	__build_path_component(dp, tmp_buf);
 	if (tmp_buf[0] == '\0')
-		snprintf(tmp_buf, sizeof(tmp_buf), "%pOFn", dp);
+		strcpy(tmp_buf, dp->name);
 
 	n = prom_early_alloc(strlen(tmp_buf) + 1);
 	strcpy(n, tmp_buf);
diff --git a/arch/sparc/kernel/prom_64.c b/arch/sparc/kernel/prom_64.c
index 6220411..baeaeed 100644
--- a/arch/sparc/kernel/prom_64.c
+++ b/arch/sparc/kernel/prom_64.c
@@ -82,8 +82,8 @@
 
 	regs = rprop->value;
 	if (!of_node_is_root(dp->parent)) {
-		sprintf(tmp_buf, "%pOFn@%x,%x",
-			dp,
+		sprintf(tmp_buf, "%s@%x,%x",
+			dp->name,
 			(unsigned int) (regs->phys_addr >> 32UL),
 			(unsigned int) (regs->phys_addr & 0xffffffffUL));
 		return;
@@ -97,17 +97,17 @@
 		const char *prefix = (type == 0) ? "m" : "i";
 
 		if (low_bits)
-			sprintf(tmp_buf, "%pOFn@%s%x,%x",
-				dp, prefix,
+			sprintf(tmp_buf, "%s@%s%x,%x",
+				dp->name, prefix,
 				high_bits, low_bits);
 		else
-			sprintf(tmp_buf, "%pOFn@%s%x",
-				dp,
+			sprintf(tmp_buf, "%s@%s%x",
+				dp->name,
 				prefix,
 				high_bits);
 	} else if (type == 12) {
-		sprintf(tmp_buf, "%pOFn@%x",
-			dp, high_bits);
+		sprintf(tmp_buf, "%s@%x",
+			dp->name, high_bits);
 	}
 }
 
@@ -122,8 +122,8 @@
 
 	regs = prop->value;
 	if (!of_node_is_root(dp->parent)) {
-		sprintf(tmp_buf, "%pOFn@%x,%x",
-			dp,
+		sprintf(tmp_buf, "%s@%x,%x",
+			dp->name,
 			(unsigned int) (regs->phys_addr >> 32UL),
 			(unsigned int) (regs->phys_addr & 0xffffffffUL));
 		return;
@@ -138,8 +138,8 @@
 		if (tlb_type >= cheetah)
 			mask = 0x7fffff;
 
-		sprintf(tmp_buf, "%pOFn@%x,%x",
-			dp,
+		sprintf(tmp_buf, "%s@%x,%x",
+			dp->name,
 			*(u32 *)prop->value,
 			(unsigned int) (regs->phys_addr & mask));
 	}
@@ -156,8 +156,8 @@
 		return;
 
 	regs = prop->value;
-	sprintf(tmp_buf, "%pOFn@%x,%x",
-		dp,
+	sprintf(tmp_buf, "%s@%x,%x",
+		dp->name,
 		regs->which_io,
 		regs->phys_addr);
 }
@@ -176,13 +176,13 @@
 	regs = prop->value;
 	devfn = (regs->phys_hi >> 8) & 0xff;
 	if (devfn & 0x07) {
-		sprintf(tmp_buf, "%pOFn@%x,%x",
-			dp,
+		sprintf(tmp_buf, "%s@%x,%x",
+			dp->name,
 			devfn >> 3,
 			devfn & 0x07);
 	} else {
-		sprintf(tmp_buf, "%pOFn@%x",
-			dp,
+		sprintf(tmp_buf, "%s@%x",
+			dp->name,
 			devfn >> 3);
 	}
 }
@@ -203,8 +203,8 @@
 	if (!prop)
 		return;
 
-	sprintf(tmp_buf, "%pOFn@%x,%x",
-		dp,
+	sprintf(tmp_buf, "%s@%x,%x",
+		dp->name,
 		*(u32 *) prop->value,
 		(unsigned int) (regs->phys_addr & 0xffffffffUL));
 }
@@ -221,7 +221,7 @@
 
 	regs = prop->value;
 
-	sprintf(tmp_buf, "%pOFn@%x", dp, *regs);
+	sprintf(tmp_buf, "%s@%x", dp->name, *regs);
 }
 
 /* "name@addrhi,addrlo" */
@@ -236,8 +236,8 @@
 
 	regs = prop->value;
 
-	sprintf(tmp_buf, "%pOFn@%x,%x",
-		dp,
+	sprintf(tmp_buf, "%s@%x,%x",
+		dp->name,
 		(unsigned int) (regs->phys_addr >> 32UL),
 		(unsigned int) (regs->phys_addr & 0xffffffffUL));
 }
@@ -257,8 +257,8 @@
 	/* This actually isn't right... should look at the #address-cells
 	 * property of the i2c bus node etc. etc.
 	 */
-	sprintf(tmp_buf, "%pOFn@%x,%x",
-		dp, regs[0], regs[1]);
+	sprintf(tmp_buf, "%s@%x,%x",
+		dp->name, regs[0], regs[1]);
 }
 
 /* "name@reg0[,reg1]" */
@@ -274,11 +274,11 @@
 	regs = prop->value;
 
 	if (prop->length == sizeof(u32) || regs[1] == 1) {
-		sprintf(tmp_buf, "%pOFn@%x",
-			dp, regs[0]);
+		sprintf(tmp_buf, "%s@%x",
+			dp->name, regs[0]);
 	} else {
-		sprintf(tmp_buf, "%pOFn@%x,%x",
-			dp, regs[0], regs[1]);
+		sprintf(tmp_buf, "%s@%x,%x",
+			dp->name, regs[0], regs[1]);
 	}
 }
 
@@ -295,11 +295,11 @@
 	regs = prop->value;
 
 	if (regs[2] || regs[3]) {
-		sprintf(tmp_buf, "%pOFn@%08x%08x,%04x%08x",
-			dp, regs[0], regs[1], regs[2], regs[3]);
+		sprintf(tmp_buf, "%s@%08x%08x,%04x%08x",
+			dp->name, regs[0], regs[1], regs[2], regs[3]);
 	} else {
-		sprintf(tmp_buf, "%pOFn@%08x%08x",
-			dp, regs[0], regs[1]);
+		sprintf(tmp_buf, "%s@%08x%08x",
+			dp->name, regs[0], regs[1]);
 	}
 }
 
@@ -361,7 +361,7 @@
 	tmp_buf[0] = '\0';
 	__build_path_component(dp, tmp_buf);
 	if (tmp_buf[0] == '\0')
-		snprintf(tmp_buf, sizeof(tmp_buf), "%pOFn", dp);
+		strcpy(tmp_buf, dp->name);
 
 	n = prom_early_alloc(strlen(tmp_buf) + 1);
 	strcpy(n, tmp_buf);
diff --git a/arch/sparc/kernel/rtrap_64.S b/arch/sparc/kernel/rtrap_64.S
index f652888..4073e2b 100644
--- a/arch/sparc/kernel/rtrap_64.S
+++ b/arch/sparc/kernel/rtrap_64.S
@@ -84,8 +84,9 @@
 		ldx			[%sp + PTREGS_OFF + PT_V9_TSTATE], %l1
 		sethi			%hi(0xf << 20), %l4
 		and			%l1, %l4, %l4
+		andn			%l1, %l4, %l1
 		ba,pt			%xcc, __handle_preemption_continue
-		 andn			%l1, %l4, %l1
+		 srl			%l4, 20, %l4
 
 		/* When returning from a NMI (%pil==15) interrupt we want to
 		 * avoid running softirqs, doing IRQ tracing, preempting, etc.
diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S
index 12bee14..621a363 100644
--- a/arch/sparc/kernel/systbls_32.S
+++ b/arch/sparc/kernel/systbls_32.S
@@ -90,4 +90,4 @@
 /*345*/	.long sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
 /*350*/	.long sys_execveat, sys_membarrier, sys_userfaultfd, sys_bind, sys_listen
 /*355*/	.long sys_setsockopt, sys_mlock2, sys_copy_file_range, sys_preadv2, sys_pwritev2
-/*360*/	.long sys_statx
+/*360*/	.long sys_statx, sys_io_pgetevents
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 387ef99..bb68c80 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -91,7 +91,7 @@
 	.word sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
 /*350*/	.word sys32_execveat, sys_membarrier, sys_userfaultfd, sys_bind, sys_listen
 	.word compat_sys_setsockopt, sys_mlock2, sys_copy_file_range, compat_sys_preadv2, compat_sys_pwritev2
-/*360*/	.word sys_statx
+/*360*/	.word sys_statx, compat_sys_io_pgetevents
 
 #endif /* CONFIG_COMPAT */
 
@@ -173,4 +173,4 @@
 	.word sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
 /*350*/	.word sys64_execveat, sys_membarrier, sys_userfaultfd, sys_bind, sys_listen
 	.word sys_setsockopt, sys_mlock2, sys_copy_file_range, sys_preadv2, sys_pwritev2
-/*360*/	.word sys_statx
+/*360*/	.word sys_statx, sys_io_pgetevents
diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 5ca56bf..f68e9ba 100644
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -36,6 +36,10 @@
 #define VDC_TX_RING_SIZE	512
 #define VDC_DEFAULT_BLK_SIZE	512
 
+#define MAX_XFER_BLKS		(128 * 1024)
+#define MAX_XFER_SIZE		(MAX_XFER_BLKS / VDC_DEFAULT_BLK_SIZE)
+#define MAX_RING_COOKIES	((MAX_XFER_BLKS / PAGE_SIZE) + 2)
+
 #define WAITING_FOR_LINK_UP	0x01
 #define WAITING_FOR_TX_SPACE	0x02
 #define WAITING_FOR_GEN_CMD	0x04
@@ -450,7 +454,7 @@
 {
 	struct vdc_port *port = req->rq_disk->private_data;
 	struct vio_dring_state *dr = &port->vio.drings[VIO_DRIVER_TX_RING];
-	struct scatterlist sg[port->ring_cookies];
+	struct scatterlist sg[MAX_RING_COOKIES];
 	struct vdc_req_entry *rqe;
 	struct vio_disk_desc *desc;
 	unsigned int map_perm;
@@ -458,6 +462,9 @@
 	u64 len;
 	u8 op;
 
+	if (WARN_ON(port->ring_cookies > MAX_RING_COOKIES))
+		return -EINVAL;
+
 	map_perm = LDC_MAP_SHADOW | LDC_MAP_DIRECT | LDC_MAP_IO;
 
 	if (rq_data_dir(req) == READ) {
@@ -984,9 +991,8 @@
 		goto err_out_free_port;
 
 	port->vdisk_block_size = VDC_DEFAULT_BLK_SIZE;
-	port->max_xfer_size = ((128 * 1024) / port->vdisk_block_size);
-	port->ring_cookies = ((port->max_xfer_size *
-			       port->vdisk_block_size) / PAGE_SIZE) + 2;
+	port->max_xfer_size = MAX_XFER_SIZE;
+	port->ring_cookies = MAX_RING_COOKIES;
 
 	err = vio_ldc_alloc(&port->vio, &vdc_ldc_cfg, port);
 	if (err)