Merge tag 'powerpc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

Pull powerpc updates from Michael Ellerman:

 - Numerous minor fixes, cleanups etc.

 - More EEH work from Gavin to remove its dependency on device_nodes.

 - Memory hotplug implemented entirely in the kernel from Nathan
   Fontenot.

 - Removal of redundant CONFIG_PPC_OF by Kevin Hao.

 - Rewrite of VPHN parsing logic & tests from Greg Kurz.

 - A fix from Nish Aravamudan to reduce memory usage by clamping
   nodes_possible_map.

 - Support for pstore on powernv from Hari Bathini.

 - Removal of old powerpc specific byte swap routines by David Gibson.

 - Fix from Vasant Hegde to prevent the flash driver telling you it was
   flashing your firmware when it wasn't.

 - Patch from Ben Herrenschmidt to add an OPAL heartbeat driver.

 - Fix for an oops causing get/put_cpu_var() imbalance in perf by Jan
   Stancek.

 - Some fixes for migration from Tyrel Datwyler.

 - A new syscall to switch the cpu endian by Michael Ellerman.

 - Large series from Wei Yang to implement SRIOV, reviewed and acked by
   Bjorn.

 - A fix for the OPAL sensor driver from Cédric Le Goater.

 - Fixes to get STRICT_MM_TYPECHECKS building again by Michael Ellerman.

 - Large series from Daniel Axtens to make our PCI hooks per PHB rather
   than per machine.

 - Small patch from Sam Bobroff to explicitly abort non-suspended
   transactions on syscalls, plus a test to exercise it.

 - Numerous reworks and fixes for the 24x7 PMU from Sukadev Bhattiprolu.

 - Small patch to enable the hard lockup detector from Anton Blanchard.

 - Fix from Dave Olson for missing L2 cache information on some CPUs.

 - Some fixes from Michael Ellerman to get Cell machines booting again.

 - Freescale updates from Scott: Highlights include BMan device tree
   nodes, an MSI erratum workaround, a couple minor performance
   improvements, config updates, and misc fixes/cleanup.

* tag 'powerpc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (196 commits)
  powerpc/powermac: Fix build error seen with powermac smp builds
  powerpc/pseries: Fix compile of memory hotplug without CONFIG_MEMORY_HOTREMOVE
  powerpc: Remove PPC32 code from pseries specific find_and_init_phbs()
  powerpc/cell: Fix iommu breakage caused by controller_ops change
  powerpc/eeh: Fix crash in eeh_add_device_early() on Cell
  powerpc/perf: Cap 64bit userspace backtraces to PERF_MAX_STACK_DEPTH
  powerpc/perf/hv-24x7: Fail 24x7 initcall if create_events_from_catalog() fails
  powerpc/pseries: Correct memory hotplug locking
  powerpc: Fix missing L2 cache size in /sys/devices/system/cpu
  powerpc: Add ppc64 hard lockup detector support
  oprofile: Disable oprofile NMI timer on ppc64
  powerpc/perf/hv-24x7: Add missing put_cpu_var()
  powerpc/perf/hv-24x7: Break up single_24x7_request
  powerpc/perf/hv-24x7: Define update_event_count()
  powerpc/perf/hv-24x7: Whitespace cleanup
  powerpc/perf/hv-24x7: Define add_event_to_24x7_request()
  powerpc/perf/hv-24x7: Rename hv_24x7_event_update
  powerpc/perf/hv-24x7: Move debug prints to separate function
  powerpc/perf/hv-24x7: Drop event_24x7_request()
  powerpc/perf/hv-24x7: Use pr_devel() to log message
  ...

Conflicts:
	tools/testing/selftests/powerpc/Makefile
	tools/testing/selftests/powerpc/tm/Makefile

21 files changed, 852 insertions, 91 deletions

diff --git a/tools/testing/selftests/powerpc/Makefile b/tools/testing/selftests/powerpc/Makefile
index 2958fe9a74e9..5ad042345ab9 100644
--- a/tools/testing/selftests/powerpc/Makefile
+++ b/tools/testing/selftests/powerpc/Makefile
@@ -12,37 +12,37 @@ CFLAGS := -Wall -O2 -flto -Wall -Werror -DGIT_VERSION='"$(GIT_VERSION)"' -I$(CUR
 
 export CFLAGS
 
-TARGETS = pmu copyloops mm tm primitives stringloops
+SUB_DIRS = pmu copyloops mm tm primitives stringloops vphn switch_endian
 
 endif
 
-all: $(TARGETS)
+all: $(SUB_DIRS)
 
-$(TARGETS):
+$(SUB_DIRS):
 	$(MAKE) -k -C $@ all
 
 include ../lib.mk
 
 override define RUN_TESTS
-	@for TARGET in $(TARGETS); do \
+	@for TARGET in $(SUB_DIRS); do \
 		$(MAKE) -C $$TARGET run_tests; \
 	done;
 endef
 
 override define INSTALL_RULE
-	@for TARGET in $(TARGETS); do \
+	@for TARGET in $(SUB_DIRS); do \
 		$(MAKE) -C $$TARGET install; \
 	done;
 endef
 
 override define EMIT_TESTS
-	@for TARGET in $(TARGETS); do \
+	@for TARGET in $(SUB_DIRS); do \
 		$(MAKE) -s -C $$TARGET emit_tests; \
 	done;
 endef
 
 clean:
-	@for TARGET in $(TARGETS); do \
+	@for TARGET in $(SUB_DIRS); do \
 		$(MAKE) -C $$TARGET clean; \
 	done;
 	rm -f tags
@@ -50,4 +50,4 @@ clean:
 tags:
 	find . -name '*.c' -o -name '*.h' | xargs ctags
 
-.PHONY: tags $(TARGETS)
+.PHONY: tags $(SUB_DIRS)
diff --git a/tools/testing/selftests/powerpc/copyloops/Makefile b/tools/testing/selftests/powerpc/copyloops/Makefile
index c05023514ce8..384843ea0d40 100644
--- a/tools/testing/selftests/powerpc/copyloops/Makefile
+++ b/tools/testing/selftests/powerpc/copyloops/Makefile
@@ -2,6 +2,7 @@
 CFLAGS += -m64
 CFLAGS += -I$(CURDIR)
 CFLAGS += -D SELFTEST
+CFLAGS += -maltivec
 
 # Use our CFLAGS for the implicit .S rule
 ASFLAGS = $(CFLAGS)
diff --git a/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h b/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h
index d1dc37425510..50ae7d2091ce 100644
--- a/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h
+++ b/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h
@@ -4,39 +4,6 @@
 
 #define r1	1
 
-#define vr0     0
-#define vr1     1
-#define vr2     2
-#define vr3     3
-#define vr4     4
-#define vr5     5
-#define vr6     6
-#define vr7     7
-#define vr8     8
-#define vr9     9
-#define vr10    10
-#define vr11    11
-#define vr12    12
-#define vr13    13
-#define vr14    14
-#define vr15    15
-#define vr16    16
-#define vr17    17
-#define vr18    18
-#define vr19    19
-#define vr20    20
-#define vr21    21
-#define vr22    22
-#define vr23    23
-#define vr24    24
-#define vr25    25
-#define vr26    26
-#define vr27    27
-#define vr28    28
-#define vr29    29
-#define vr30    30
-#define vr31    31
-
 #define R14 r14
 #define R15 r15
 #define R16 r16
diff --git a/tools/testing/selftests/powerpc/harness.c b/tools/testing/selftests/powerpc/harness.c
index 8ebc58a09311..f7997affd143 100644
--- a/tools/testing/selftests/powerpc/harness.c
+++ b/tools/testing/selftests/powerpc/harness.c
@@ -11,6 +11,10 @@
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <unistd.h>
+#include <elf.h>
+#include <fcntl.h>
+#include <link.h>
+#include <sys/stat.h>
 
 #include "subunit.h"
 #include "utils.h"
@@ -112,3 +116,46 @@ int test_harness(int (test_function)(void), char *name)
 
 	return rc;
 }
+
+static char auxv[4096];
+
+void *get_auxv_entry(int type)
+{
+	ElfW(auxv_t) *p;
+	void *result;
+	ssize_t num;
+	int fd;
+
+	fd = open("/proc/self/auxv", O_RDONLY);
+	if (fd == -1) {
+		perror("open");
+		return NULL;
+	}
+
+	result = NULL;
+
+	num = read(fd, auxv, sizeof(auxv));
+	if (num < 0) {
+		perror("read");
+		goto out;
+	}
+
+	if (num > sizeof(auxv)) {
+		printf("Overflowed auxv buffer\n");
+		goto out;
+	}
+
+	p = (ElfW(auxv_t) *)auxv;
+
+	while (p->a_type != AT_NULL) {
+		if (p->a_type == type) {
+			result = (void *)p->a_un.a_val;
+			break;
+		}
+
+		p++;
+	}
+out:
+	close(fd);
+	return result;
+}
diff --git a/tools/testing/selftests/powerpc/pmu/lib.c b/tools/testing/selftests/powerpc/pmu/lib.c
index 9768dea37bf3..a07104c2afe6 100644
--- a/tools/testing/selftests/powerpc/pmu/lib.c
+++ b/tools/testing/selftests/powerpc/pmu/lib.c
@@ -5,15 +5,10 @@
 
 #define _GNU_SOURCE	/* For CPU_ZERO etc. */
 
-#include <elf.h>
 #include <errno.h>
-#include <fcntl.h>
-#include <link.h>
 #include <sched.h>
 #include <setjmp.h>
 #include <stdlib.h>
-#include <sys/stat.h>
-#include <sys/types.h>
 #include <sys/wait.h>
 
 #include "utils.h"
@@ -256,45 +251,3 @@ out:
 	return rc;
 }
 
-static char auxv[4096];
-
-void *get_auxv_entry(int type)
-{
-	ElfW(auxv_t) *p;
-	void *result;
-	ssize_t num;
-	int fd;
-
-	fd = open("/proc/self/auxv", O_RDONLY);
-	if (fd == -1) {
-		perror("open");
-		return NULL;
-	}
-
-	result = NULL;
-
-	num = read(fd, auxv, sizeof(auxv));
-	if (num < 0) {
-		perror("read");
-		goto out;
-	}
-
-	if (num > sizeof(auxv)) {
-		printf("Overflowed auxv buffer\n");
-		goto out;
-	}
-
-	p = (ElfW(auxv_t) *)auxv;
-
-	while (p->a_type != AT_NULL) {
-		if (p->a_type == type) {
-			result = (void *)p->a_un.a_val;
-			break;
-		}
-
-		p++;
-	}
-out:
-	close(fd);
-	return result;
-}
diff --git a/tools/testing/selftests/powerpc/pmu/lib.h b/tools/testing/selftests/powerpc/pmu/lib.h
index 0f0339c8a6f6..ca5d72ae3be6 100644
--- a/tools/testing/selftests/powerpc/pmu/lib.h
+++ b/tools/testing/selftests/powerpc/pmu/lib.h
@@ -29,7 +29,6 @@ extern int notify_parent(union pipe write_pipe);
 extern int notify_parent_of_error(union pipe write_pipe);
 extern pid_t eat_cpu(int (test_function)(void));
 extern bool require_paranoia_below(int level);
-extern void *get_auxv_entry(int type);
 
 struct addr_range {
 	uint64_t first, last;
diff --git a/tools/testing/selftests/powerpc/switch_endian/.gitignore b/tools/testing/selftests/powerpc/switch_endian/.gitignore
new file mode 100644
index 000000000000..89e762eab676
--- /dev/null
+++ b/tools/testing/selftests/powerpc/switch_endian/.gitignore
@@ -0,0 +1,2 @@
+switch_endian_test
+check-reversed.S
diff --git a/tools/testing/selftests/powerpc/switch_endian/Makefile b/tools/testing/selftests/powerpc/switch_endian/Makefile
new file mode 100644
index 000000000000..081473db22b7
--- /dev/null
+++ b/tools/testing/selftests/powerpc/switch_endian/Makefile
@@ -0,0 +1,24 @@
+CC := $(CROSS_COMPILE)gcc
+PROGS := switch_endian_test
+
+ASFLAGS += -O2 -Wall -g -nostdlib -m64
+
+all: $(PROGS)
+
+switch_endian_test: check-reversed.S
+
+check-reversed.o: check.o
+	$(CROSS_COMPILE)objcopy -j .text --reverse-bytes=4 -O binary $< $@
+
+check-reversed.S: check-reversed.o
+	hexdump -v -e '/1 ".byte 0x%02X\n"' $< > $@
+
+run_tests: all
+	@-for PROG in $(PROGS); do \
+		./$$PROG; \
+	done;
+
+clean:
+	rm -f $(PROGS) *.o check-reversed.S
+
+.PHONY: all run_tests clean
diff --git a/tools/testing/selftests/powerpc/switch_endian/check.S b/tools/testing/selftests/powerpc/switch_endian/check.S
new file mode 100644
index 000000000000..e2484d2c24f4
--- /dev/null
+++ b/tools/testing/selftests/powerpc/switch_endian/check.S
@@ -0,0 +1,100 @@
+#include "common.h"
+
+/*
+ * Checks that registers contain what we expect, ie. they were not clobbered by
+ * the syscall.
+ *
+ * r15: pattern to check registers against.
+ *
+ * At the end r3 == 0 if everything's OK.
+ */
+	nop			# guaranteed to be illegal in reverse-endian
+	mr	r9,r15
+	cmpd    r9,r3		# check r3
+	bne     1f
+	addi    r9,r15,4	# check r4
+	cmpd    r9,r4
+	bne     1f
+	lis     r9,0x00FF	# check CR
+	ori     r9,r9,0xF000
+	mfcr    r10
+	and     r10,r10,r9
+	cmpw    r9,r10
+	addi    r9,r15,34
+	bne     1f
+	addi    r9,r15,32	# check LR
+	mflr    r10
+	cmpd    r9,r10
+	bne     1f
+	addi    r9,r15,5	# check r5
+	cmpd    r9,r5
+	bne     1f
+	addi    r9,r15,6	# check r6
+	cmpd    r9,r6
+	bne     1f
+	addi    r9,r15,7	# check r7
+	cmpd    r9,r7
+	bne     1f
+	addi    r9,r15,8	# check r8
+	cmpd    r9,r8
+	bne     1f
+	addi    r9,r15,13	# check r13
+	cmpd    r9,r13
+	bne     1f
+	addi    r9,r15,14	# check r14
+	cmpd    r9,r14
+	bne     1f
+	addi    r9,r15,16	# check r16
+	cmpd    r9,r16
+	bne     1f
+	addi    r9,r15,17	# check r17
+	cmpd    r9,r17
+	bne     1f
+	addi    r9,r15,18	# check r18
+	cmpd    r9,r18
+	bne     1f
+	addi    r9,r15,19	# check r19
+	cmpd    r9,r19
+	bne     1f
+	addi    r9,r15,20	# check r20
+	cmpd    r9,r20
+	bne     1f
+	addi    r9,r15,21	# check r21
+	cmpd    r9,r21
+	bne     1f
+	addi    r9,r15,22	# check r22
+	cmpd    r9,r22
+	bne     1f
+	addi    r9,r15,23	# check r23
+	cmpd    r9,r23
+	bne     1f
+	addi    r9,r15,24	# check r24
+	cmpd    r9,r24
+	bne     1f
+	addi    r9,r15,25	# check r25
+	cmpd    r9,r25
+	bne     1f
+	addi    r9,r15,26	# check r26
+	cmpd    r9,r26
+	bne     1f
+	addi    r9,r15,27	# check r27
+	cmpd    r9,r27
+	bne     1f
+	addi    r9,r15,28	# check r28
+	cmpd    r9,r28
+	bne     1f
+	addi    r9,r15,29	# check r29
+	cmpd    r9,r29
+	bne     1f
+	addi    r9,r15,30	# check r30
+	cmpd    r9,r30
+	bne     1f
+	addi    r9,r15,31	# check r31
+	cmpd    r9,r31
+	bne     1f
+	b	2f
+1:	mr	r3, r9
+	li	r0, __NR_exit
+	sc
+2:	li	r0, __NR_switch_endian
+	nop
diff --git a/tools/testing/selftests/powerpc/switch_endian/common.h b/tools/testing/selftests/powerpc/switch_endian/common.h
new file mode 100644
index 000000000000..69e399698c64
--- /dev/null
+++ b/tools/testing/selftests/powerpc/switch_endian/common.h
@@ -0,0 +1,6 @@
+#include <ppc-asm.h>
+#include <asm/unistd.h>
+
+#ifndef __NR_switch_endian
+#define __NR_switch_endian 363
+#endif
diff --git a/tools/testing/selftests/powerpc/switch_endian/switch_endian_test.S b/tools/testing/selftests/powerpc/switch_endian/switch_endian_test.S
new file mode 100644
index 000000000000..ef7c971abb67
--- /dev/null
+++ b/tools/testing/selftests/powerpc/switch_endian/switch_endian_test.S
@@ -0,0 +1,81 @@
+#include "common.h"
+
+	.data
+	.balign 8
+message:
+	.ascii "success: switch_endian_test\n\0"
+
+	.section ".toc"
+	.balign 8
+pattern:
+	.llong 0x5555AAAA5555AAAA
+
+	.text
+FUNC_START(_start)
+	/* Load the pattern */
+	ld	r15, pattern@TOC(%r2)
+
+	/* Setup CR, only CR2-CR4 are maintained */
+	lis	r3, 0x00FF
+	ori	r3, r3, 0xF000
+	mtcr	r3
+
+	/* Load the pattern slightly modified into the registers */
+	mr	r3, r15
+	addi	r4, r15, 4
+
+	addi	r5, r15, 32
+	mtlr	r5
+
+	addi	r5, r15, 5
+	addi	r6, r15, 6
+	addi	r7, r15, 7
+	addi	r8, r15, 8
+
+	/* r9 - r12 are clobbered */
+
+	addi	r13, r15, 13
+	addi	r14, r15, 14
+
+	/* Skip r15 we're using it */
+
+	addi	r16, r15, 16
+	addi	r17, r15, 17
+	addi	r18, r15, 18
+	addi	r19, r15, 19
+	addi	r20, r15, 20
+	addi	r21, r15, 21
+	addi	r22, r15, 22
+	addi	r23, r15, 23
+	addi	r24, r15, 24
+	addi	r25, r15, 25
+	addi	r26, r15, 26
+	addi	r27, r15, 27
+	addi	r28, r15, 28
+	addi	r29, r15, 29
+	addi	r30, r15, 30
+	addi	r31, r15, 31
+
+	/*
+	 * Call the syscall to switch endian.
+	 * It clobbers r9-r12, XER, CTR and CR0-1,5-7.
+	 */
+	li r0, __NR_switch_endian
+	sc
+
+#include "check-reversed.S"
+
+	/* Flip back, r0 already has the switch syscall number */
+	.long	0x02000044	/* sc */
+
+#include "check.S"
+
+	li	r0, __NR_write
+	li	r3, 1	/* stdout */
+	ld	r4, message@got(%r2)
+	li	r5, 28	/* strlen(message3) */
+	sc
+	li      r0, __NR_exit
+	li	r3, 0
+	sc
+	b       .
diff --git a/tools/testing/selftests/powerpc/tm/.gitignore b/tools/testing/selftests/powerpc/tm/.gitignore
index 33d02cc54a3e..2699635d2cd9 100644
--- a/tools/testing/selftests/powerpc/tm/.gitignore
+++ b/tools/testing/selftests/powerpc/tm/.gitignore
@@ -1 +1,2 @@
 tm-resched-dscr
+tm-syscall
diff --git a/tools/testing/selftests/powerpc/tm/Makefile b/tools/testing/selftests/powerpc/tm/Makefile
index 34f2ec634b40..1b616fa79e93 100644
--- a/tools/testing/selftests/powerpc/tm/Makefile
+++ b/tools/testing/selftests/powerpc/tm/Makefile
@@ -1,9 +1,12 @@
-TEST_PROGS := tm-resched-dscr
+TEST_PROGS := tm-resched-dscr tm-syscall
 
 all: $(TEST_PROGS)
 
 $(TEST_PROGS): ../harness.c
 
+tm-syscall: tm-syscall-asm.S
+tm-syscall: CFLAGS += -mhtm
+
 include ../../lib.mk
 
 clean:
diff --git a/tools/testing/selftests/powerpc/tm/tm-syscall-asm.S b/tools/testing/selftests/powerpc/tm/tm-syscall-asm.S
new file mode 100644
index 000000000000..431f61ae2368
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-syscall-asm.S
@@ -0,0 +1,27 @@
+#include <ppc-asm.h>
+#include <asm/unistd.h>
+
+	.text
+FUNC_START(getppid_tm_active)
+	tbegin.
+	beq 1f
+	li	r0, __NR_getppid
+	sc
+	tend.
+	blr
+1:
+	li	r3, -1
+	blr
+
+FUNC_START(getppid_tm_suspended)
+	tbegin.
+	beq 1f
+	li	r0, __NR_getppid
+	tsuspend.
+	sc
+	tresume.
+	tend.
+	blr
+1:
+	li	r3, -1
+	blr
diff --git a/tools/testing/selftests/powerpc/tm/tm-syscall.c b/tools/testing/selftests/powerpc/tm/tm-syscall.c
new file mode 100644
index 000000000000..3ed8d4b252fa
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-syscall.c
@@ -0,0 +1,121 @@
+/*
+ * Copyright 2015, Sam Bobroff, IBM Corp.
+ * Licensed under GPLv2.
+ *
+ * Test the kernel's system call code to ensure that a system call
+ * made from within an active HTM transaction is aborted with the
+ * correct failure code.
+ * Conversely, ensure that a system call made from within a
+ * suspended transaction can succeed.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <asm/tm.h>
+#include <asm/cputable.h>
+#include <linux/auxvec.h>
+#include <sys/time.h>
+#include <stdlib.h>
+
+#include "utils.h"
+
+extern int getppid_tm_active(void);
+extern int getppid_tm_suspended(void);
+
+unsigned retries = 0;
+
+#define TEST_DURATION 10 /* seconds */
+#define TM_RETRIES 100
+
+long failure_code(void)
+{
+	return __builtin_get_texasru() >> 24;
+}
+
+bool failure_is_persistent(void)
+{
+	return (failure_code() & TM_CAUSE_PERSISTENT) == TM_CAUSE_PERSISTENT;
+}
+
+bool failure_is_syscall(void)
+{
+	return (failure_code() & TM_CAUSE_SYSCALL) == TM_CAUSE_SYSCALL;
+}
+
+pid_t getppid_tm(bool suspend)
+{
+	int i;
+	pid_t pid;
+
+	for (i = 0; i < TM_RETRIES; i++) {
+		if (suspend)
+			pid = getppid_tm_suspended();
+		else
+			pid = getppid_tm_active();
+
+		if (pid >= 0)
+			return pid;
+
+		if (failure_is_persistent()) {
+			if (failure_is_syscall())
+				return -1;
+
+			printf("Unexpected persistent transaction failure.\n");
+			printf("TEXASR 0x%016lx, TFIAR 0x%016lx.\n",
+			       __builtin_get_texasr(), __builtin_get_tfiar());
+			exit(-1);
+		}
+
+		retries++;
+	}
+
+	printf("Exceeded limit of %d temporary transaction failures.\n", TM_RETRIES);
+	printf("TEXASR 0x%016lx, TFIAR 0x%016lx.\n",
+	       __builtin_get_texasr(), __builtin_get_tfiar());
+
+	exit(-1);
+}
+
+int tm_syscall(void)
+{
+	unsigned count = 0;
+	struct timeval end, now;
+
+	SKIP_IF(!((long)get_auxv_entry(AT_HWCAP2) & PPC_FEATURE2_HTM));
+	setbuf(stdout, NULL);
+
+	printf("Testing transactional syscalls for %d seconds...\n", TEST_DURATION);
+
+	gettimeofday(&end, NULL);
+	now.tv_sec = TEST_DURATION;
+	now.tv_usec = 0;
+	timeradd(&end, &now, &end);
+
+	for (count = 0; timercmp(&now, &end, <); count++) {
+		/*
+		 * Test a syscall within a suspended transaction and verify
+		 * that it succeeds.
+		 */
+		FAIL_IF(getppid_tm(true) == -1); /* Should succeed. */
+
+		/*
+		 * Test a syscall within an active transaction and verify that
+		 * it fails with the correct failure code.
+		 */
+		FAIL_IF(getppid_tm(false) != -1);  /* Should fail... */
+		FAIL_IF(!failure_is_persistent()); /* ...persistently... */
+		FAIL_IF(!failure_is_syscall());    /* ...with code syscall. */
+		gettimeofday(&now, 0);
+	}
+
+	printf("%d active and suspended transactions behaved correctly.\n", count);
+	printf("(There were %d transaction retries.)\n", retries);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(tm_syscall, "tm_syscall");
+}
diff --git a/tools/testing/selftests/powerpc/utils.h b/tools/testing/selftests/powerpc/utils.h
index a93777ae0684..b7d41086bb0a 100644
--- a/tools/testing/selftests/powerpc/utils.h
+++ b/tools/testing/selftests/powerpc/utils.h
@@ -15,11 +15,12 @@ typedef   signed long long s64;
 
 /* Just for familiarity */
 typedef uint32_t u32;
+typedef uint16_t u16;
 typedef uint8_t u8;
 
 
 int test_harness(int (test_function)(void), char *name);
-
+extern void *get_auxv_entry(int type);
 
 /* Yes, this is evil */
 #define FAIL_IF(x)						\
diff --git a/tools/testing/selftests/powerpc/vphn/.gitignore b/tools/testing/selftests/powerpc/vphn/.gitignore
new file mode 100644
index 000000000000..7c04395010cb
--- /dev/null
+++ b/tools/testing/selftests/powerpc/vphn/.gitignore
@@ -0,0 +1 @@
+test-vphn
diff --git a/tools/testing/selftests/powerpc/vphn/Makefile b/tools/testing/selftests/powerpc/vphn/Makefile
new file mode 100644
index 000000000000..e539f775fd8f
--- /dev/null
+++ b/tools/testing/selftests/powerpc/vphn/Makefile
@@ -0,0 +1,15 @@
+PROG := test-vphn
+
+CFLAGS += -m64
+
+all: $(PROG)
+
+$(PROG): ../harness.c
+
+run_tests: all
+	./$(PROG)
+
+clean:
+	rm -f $(PROG)
+
+.PHONY: all run_tests clean
diff --git a/tools/testing/selftests/powerpc/vphn/test-vphn.c b/tools/testing/selftests/powerpc/vphn/test-vphn.c
new file mode 100644
index 000000000000..5742f6876b25
--- /dev/null
+++ b/tools/testing/selftests/powerpc/vphn/test-vphn.c
@@ -0,0 +1,410 @@
+#include <stdio.h>
+#include <byteswap.h>
+#include "utils.h"
+#include "subunit.h"
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define cpu_to_be32(x)		bswap_32(x)
+#define be32_to_cpu(x)		bswap_32(x)
+#define be16_to_cpup(x)		bswap_16(*x)
+#define cpu_to_be64(x)		bswap_64(x)
+#else
+#define cpu_to_be32(x)		(x)
+#define be32_to_cpu(x)		(x)
+#define be16_to_cpup(x)		(*x)
+#define cpu_to_be64(x)		(x)
+#endif
+
+#include "vphn.c"
+
+static struct test {
+	char *descr;
+	long input[VPHN_REGISTER_COUNT];
+	u32 expected[VPHN_ASSOC_BUFSIZE];
+} all_tests[] = {
+	{
+		"vphn: no data",
+		{
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+		},
+		{
+			0x00000000
+		}
+	},
+	{
+		"vphn: 1 x 16-bit value",
+		{
+			0x8001ffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+		},
+		{
+			0x00000001,
+			0x00000001
+		}
+	},
+	{
+		"vphn: 2 x 16-bit values",
+		{
+			0x80018002ffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+		},
+		{
+			0x00000002,
+			0x00000001,
+			0x00000002
+		}
+	},
+	{
+		"vphn: 3 x 16-bit values",
+		{
+			0x800180028003ffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+		},
+		{
+			0x00000003,
+			0x00000001,
+			0x00000002,
+			0x00000003
+		}
+	},
+	{
+		"vphn: 4 x 16-bit values",
+		{
+			0x8001800280038004,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+		},
+		{
+			0x00000004,
+			0x00000001,
+			0x00000002,
+			0x00000003,
+			0x00000004
+		}
+	},
+	{
+		/* Parsing the next 16-bit value out of the next 64-bit input
+		 * value.
+		 */
+		"vphn: 5 x 16-bit values",
+		{
+			0x8001800280038004,
+			0x8005ffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+		},
+		{
+			0x00000005,
+			0x00000001,
+			0x00000002,
+			0x00000003,
+			0x00000004,
+			0x00000005
+		}
+	},
+	{
+		/* Parse at most 6 x 64-bit input values */
+		"vphn: 24 x 16-bit values",
+		{
+			0x8001800280038004,
+			0x8005800680078008,
+			0x8009800a800b800c,
+			0x800d800e800f8010,
+			0x8011801280138014,
+			0x8015801680178018
+		},
+		{
+			0x00000018,
+			0x00000001,
+			0x00000002,
+			0x00000003,
+			0x00000004,
+			0x00000005,
+			0x00000006,
+			0x00000007,
+			0x00000008,
+			0x00000009,
+			0x0000000a,
+			0x0000000b,
+			0x0000000c,
+			0x0000000d,
+			0x0000000e,
+			0x0000000f,
+			0x00000010,
+			0x00000011,
+			0x00000012,
+			0x00000013,
+			0x00000014,
+			0x00000015,
+			0x00000016,
+			0x00000017,
+			0x00000018
+		}
+	},
+	{
+		"vphn: 1 x 32-bit value",
+		{
+			0x00000001ffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff
+		},
+		{
+			0x00000001,
+			0x00000001
+		}
+	},
+	{
+		"vphn: 2 x 32-bit values",
+		{
+			0x0000000100000002,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff
+		},
+		{
+			0x00000002,
+			0x00000001,
+			0x00000002
+		}
+	},
+	{
+		/* Parsing the next 32-bit value out of the next 64-bit input
+		 * value.
+		 */
+		"vphn: 3 x 32-bit values",
+		{
+			0x0000000100000002,
+			0x00000003ffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff
+		},
+		{
+			0x00000003,
+			0x00000001,
+			0x00000002,
+			0x00000003
+		}
+	},
+	{
+		/* Parse at most 6 x 64-bit input values */
+		"vphn: 12 x 32-bit values",
+		{
+			0x0000000100000002,
+			0x0000000300000004,
+			0x0000000500000006,
+			0x0000000700000008,
+			0x000000090000000a,
+			0x0000000b0000000c
+		},
+		{
+			0x0000000c,
+			0x00000001,
+			0x00000002,
+			0x00000003,
+			0x00000004,
+			0x00000005,
+			0x00000006,
+			0x00000007,
+			0x00000008,
+			0x00000009,
+			0x0000000a,
+			0x0000000b,
+			0x0000000c
+		}
+	},
+	{
+		"vphn: 16-bit value followed by 32-bit value",
+		{
+			0x800100000002ffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff
+		},
+		{
+			0x00000002,
+			0x00000001,
+			0x00000002
+		}
+	},
+	{
+		"vphn: 32-bit value followed by 16-bit value",
+		{
+			0x000000018002ffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff
+		},
+		{
+			0x00000002,
+			0x00000001,
+			0x00000002
+		}
+	},
+	{
+		/* Parse a 32-bit value split accross two consecutives 64-bit
+		 * input values.
+		 */
+		"vphn: 16-bit value followed by 2 x 32-bit values",
+		{
+			0x8001000000020000,
+			0x0003ffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff
+		},
+		{
+			0x00000003,
+			0x00000001,
+			0x00000002,
+			0x00000003,
+			0x00000004,
+			0x00000005
+		}
+	},
+	{
+		/* The lower bits in 0x0001ffff don't get mixed up with the
+		 * 0xffff terminator.
+		 */
+		"vphn: 32-bit value has all ones in 16 lower bits",
+		{
+			0x0001ffff80028003,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff,
+			0xffffffffffffffff
+		},
+		{
+			0x00000003,
+			0x0001ffff,
+			0x00000002,
+			0x00000003
+		}
+	},
+	{
+		/* The following input doesn't follow the specification.
+		 */
+		"vphn: last 32-bit value is truncated",
+		{
+			0x0000000100000002,
+			0x0000000300000004,
+			0x0000000500000006,
+			0x0000000700000008,
+			0x000000090000000a,
+			0x0000000b800c2bad
+		},
+		{
+			0x0000000c,
+			0x00000001,
+			0x00000002,
+			0x00000003,
+			0x00000004,
+			0x00000005,
+			0x00000006,
+			0x00000007,
+			0x00000008,
+			0x00000009,
+			0x0000000a,
+			0x0000000b,
+			0x0000000c
+		}
+	},
+	{
+		"vphn: garbage after terminator",
+		{
+			0xffff2bad2bad2bad,
+			0x2bad2bad2bad2bad,
+			0x2bad2bad2bad2bad,
+			0x2bad2bad2bad2bad,
+			0x2bad2bad2bad2bad,
+			0x2bad2bad2bad2bad
+		},
+		{
+			0x00000000
+		}
+	},
+	{
+		NULL
+	}
+};
+
+static int test_one(struct test *test)
+{
+	__be32 output[VPHN_ASSOC_BUFSIZE] = { 0 };
+	int i, len;
+
+	vphn_unpack_associativity(test->input, output);
+
+	len = be32_to_cpu(output[0]);
+	if (len != test->expected[0]) {
+		printf("expected %d elements, got %d\n", test->expected[0],
+		       len);
+		return 1;
+	}
+
+	for (i = 1; i < len; i++) {
+		u32 val = be32_to_cpu(output[i]);
+		if (val != test->expected[i]) {
+			printf("element #%d is 0x%x, should be 0x%x\n", i, val,
+			       test->expected[i]);
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+static int test_vphn(void)
+{
+	static struct test *test;
+
+	for (test = all_tests; test->descr; test++) {
+		int ret;
+
+		ret = test_one(test);
+		test_finish(test->descr, ret);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	return test_harness(test_vphn, "test-vphn");
+}
diff --git a/tools/testing/selftests/powerpc/vphn/vphn.c b/tools/testing/selftests/powerpc/vphn/vphn.c
new file mode 120000
index 000000000000..186b906e66d5
--- /dev/null
+++ b/tools/testing/selftests/powerpc/vphn/vphn.c
@@ -0,0 +1 @@
+../../../../../arch/powerpc/mm/vphn.c
\ No newline at end of file
diff --git a/tools/testing/selftests/powerpc/vphn/vphn.h b/tools/testing/selftests/powerpc/vphn/vphn.h
new file mode 120000
index 000000000000..7131efe38c65
--- /dev/null
+++ b/tools/testing/selftests/powerpc/vphn/vphn.h
@@ -0,0 +1 @@
+../../../../../arch/powerpc/mm/vphn.h
\ No newline at end of file