Merge tag 'powerpc-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Add support for syscall stack randomization

 - Add support for atomic operations to the 32 & 64-bit BPF JIT

 - Full support for KASAN on 64-bit Book3E

 - Add a watchdog driver for the new PowerVM hypervisor watchdog

 - Add a number of new selftests for the Power10 PMU support

 - Add a driver for the PowerVM Platform KeyStore

 - Increase the NMI watchdog timeout during live partition migration, to
   avoid timeouts due to increased memory access latency

 - Add support for using the 'linux,pci-domain' device tree property for
   PCI domain assignment

 - Many other small features and fixes

Thanks to Alexey Kardashevskiy, Andy Shevchenko, Arnd Bergmann, Athira
Rajeev, Bagas Sanjaya, Christophe Leroy, Erhard Furtner, Fabiano Rosas,
Greg Kroah-Hartman, Greg Kurz, Haowen Bai, Hari Bathini, Jason A.
Donenfeld, Jason Wang, Jiang Jian, Joel Stanley, Juerg Haefliger, Kajol
Jain, Kees Cook, Laurent Dufour, Madhavan Srinivasan, Masahiro Yamada,
Maxime Bizon, Miaoqian Lin, Murilo Opsfelder Araújo, Nathan Lynch,
Naveen N.  Rao, Nayna Jain, Nicholas Piggin, Ning Qiang, Pali Rohár,
Petr Mladek, Rashmica Gupta, Sachin Sant, Scott Cheloha, Segher
Boessenkool, Stephen Rothwell, Uwe Kleine-König, Wolfram Sang, Xiu
Jianfeng, and Zhouyi Zhou.

* tag 'powerpc-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (191 commits)
  powerpc/64e: Fix kexec build error
  EDAC/ppc_4xx: Include required of_irq header directly
  powerpc/pci: Fix PHB numbering when using opal-phbid
  powerpc/64: Init jump labels before parse_early_param()
  selftests/powerpc: Avoid GCC 12 uninitialised variable warning
  powerpc/cell/axon_msi: Fix refcount leak in setup_msi_msg_address
  powerpc/xive: Fix refcount leak in xive_get_max_prio
  powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader
  powerpc/perf: Include caps feature for power10 DD1 version
  powerpc: add support for syscall stack randomization
  powerpc: Move system_call_exception() to syscall.c
  powerpc/powernv: rename remaining rng powernv_ functions to pnv_
  powerpc/powernv/kvm: Use darn for H_RANDOM on Power9
  powerpc/powernv: Avoid crashing if rng is NULL
  selftests/powerpc: Fix matrix multiply assist test
  powerpc/signal: Update comment for clarity
  powerpc: make facility_unavailable_exception 64s
  powerpc/platforms/83xx/suspend: Remove write-only global variable
  powerpc/platforms/83xx/suspend: Prevent unloading the driver
  powerpc/platforms/83xx/suspend: Reorder to get rid of a forward declaration
  ...

16 files changed, 129 insertions, 54 deletions

diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 140502a7fdf8..13919eb96931 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -1349,27 +1349,22 @@ static void power_pmu_disable(struct pmu *pmu)
 		 * a PMI happens during interrupt replay and perf counter
 		 * values are cleared by PMU callbacks before replay.
 		 *
-		 * If any PMC corresponding to the active PMU events are
-		 * overflown, disable the interrupt by clearing the paca
-		 * bit for PMI since we are disabling the PMU now.
-		 * Otherwise provide a warning if there is PMI pending, but
-		 * no counter is found overflown.
+		 * Disable the interrupt by clearing the paca bit for PMI
+		 * since we are disabling the PMU now. Otherwise provide a
+		 * warning if there is PMI pending, but no counter is found
+		 * overflown.
+		 *
+		 * Since power_pmu_disable runs under local_irq_save, it
+		 * could happen that code hits a PMC overflow without PMI
+		 * pending in paca. Hence only clear PMI pending if it was
+		 * set.
+		 *
+		 * If a PMI is pending, then MSR[EE] must be disabled (because
+		 * the masked PMI handler disabling EE). So it is safe to
+		 * call clear_pmi_irq_pending().
 		 */
-		if (any_pmc_overflown(cpuhw)) {
-			/*
-			 * Since power_pmu_disable runs under local_irq_save, it
-			 * could happen that code hits a PMC overflow without PMI
-			 * pending in paca. Hence only clear PMI pending if it was
-			 * set.
-			 *
-			 * If a PMI is pending, then MSR[EE] must be disabled (because
-			 * the masked PMI handler disabling EE). So it is safe to
-			 * call clear_pmi_irq_pending().
-			 */
-			if (pmi_irq_pending())
-				clear_pmi_irq_pending();
-		} else
-			WARN_ON(pmi_irq_pending());
+		if (pmi_irq_pending())
+			clear_pmi_irq_pending();
 
 		val = mmcra = cpuhw->mmcr.mmcra;
 
@@ -2488,6 +2483,33 @@ static int power_pmu_prepare_cpu(unsigned int cpu)
 	return 0;
 }
 
+static ssize_t pmu_name_show(struct device *cdev,
+		struct device_attribute *attr,
+		char *buf)
+{
+	if (ppmu)
+		return sysfs_emit(buf, "%s", ppmu->name);
+
+	return 0;
+}
+
+static DEVICE_ATTR_RO(pmu_name);
+
+static struct attribute *pmu_caps_attrs[] = {
+	&dev_attr_pmu_name.attr,
+	NULL
+};
+
+static const struct attribute_group pmu_caps_group = {
+	.name  = "caps",
+	.attrs = pmu_caps_attrs,
+};
+
+static const struct attribute_group *pmu_caps_groups[] = {
+	&pmu_caps_group,
+	NULL,
+};
+
 int __init register_power_pmu(struct power_pmu *pmu)
 {
 	if (ppmu)
@@ -2498,6 +2520,10 @@ int __init register_power_pmu(struct power_pmu *pmu)
 		pmu->name);
 
 	power_pmu.attr_groups = ppmu->attr_groups;
+
+	if (ppmu->flags & PPMU_ARCH_207S)
+		power_pmu.attr_update = pmu_caps_groups;
+
 	power_pmu.capabilities |= (ppmu->capabilities & PERF_PMU_CAP_EXTENDED_REGS);
 
 #ifdef MSR_HV
diff --git a/arch/powerpc/perf/e500-pmu.c b/arch/powerpc/perf/e500-pmu.c
index a59c33bed32a..e3e1a68eb1d5 100644
--- a/arch/powerpc/perf/e500-pmu.c
+++ b/arch/powerpc/perf/e500-pmu.c
@@ -118,12 +118,13 @@ static struct fsl_emb_pmu e500_pmu = {
 
 static int init_e500_pmu(void)
 {
-	if (!cur_cpu_spec->oprofile_cpu_type)
-		return -ENODEV;
+	unsigned int pvr = mfspr(SPRN_PVR);
 
-	if (!strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc/e500mc"))
+	/* ec500mc */
+	if (PVR_VER(pvr) == PVR_VER_E500MC || PVR_VER(pvr) == PVR_VER_E5500)
 		num_events = 256;
-	else if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc/e500"))
+	/* e500 */
+	else if (PVR_VER(pvr) != PVR_VER_E500V1 && PVR_VER(pvr) != PVR_VER_E500V2)
 		return -ENODEV;
 
 	return register_fsl_emb_pmu(&e500_pmu);
diff --git a/arch/powerpc/perf/e6500-pmu.c b/arch/powerpc/perf/e6500-pmu.c
index 44ad65da82ed..bd779a2338f8 100644
--- a/arch/powerpc/perf/e6500-pmu.c
+++ b/arch/powerpc/perf/e6500-pmu.c
@@ -107,8 +107,9 @@ static struct fsl_emb_pmu e6500_pmu = {
 
 static int init_e6500_pmu(void)
 {
-	if (!cur_cpu_spec->oprofile_cpu_type ||
-		strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc/e6500"))
+	unsigned int pvr = mfspr(SPRN_PVR);
+
+	if (PVR_VER(pvr) != PVR_VER_E6500)
 		return -ENODEV;
 
 	return register_fsl_emb_pmu(&e6500_pmu);
diff --git a/arch/powerpc/perf/generic-compat-pmu.c b/arch/powerpc/perf/generic-compat-pmu.c
index f3db88aee4dd..b5c414876ed5 100644
--- a/arch/powerpc/perf/generic-compat-pmu.c
+++ b/arch/powerpc/perf/generic-compat-pmu.c
@@ -151,9 +151,19 @@ static const struct attribute_group generic_compat_pmu_format_group = {
 	.attrs = generic_compat_pmu_format_attr,
 };
 
+static struct attribute *generic_compat_pmu_caps_attrs[] = {
+	NULL
+};
+
+static struct attribute_group generic_compat_pmu_caps_group = {
+	.name  = "caps",
+	.attrs = generic_compat_pmu_caps_attrs,
+};
+
 static const struct attribute_group *generic_compat_pmu_attr_groups[] = {
 	&generic_compat_pmu_format_group,
 	&generic_compat_pmu_events_group,
+	&generic_compat_pmu_caps_group,
 	NULL,
 };
 
@@ -292,7 +302,7 @@ static int generic_compute_mmcr(u64 event[], int n_ev,
 }
 
 static struct power_pmu generic_compat_pmu = {
-	.name			= "GENERIC_COMPAT",
+	.name			= "ISAv3",
 	.n_counter		= MAX_PMU_COUNTERS,
 	.add_fields		= ISA207_ADD_FIELDS,
 	.test_adder		= ISA207_TEST_ADDER,
diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c
index cf5406b31e27..33c23225fd54 100644
--- a/arch/powerpc/perf/hv-24x7.c
+++ b/arch/powerpc/perf/hv-24x7.c
@@ -1718,16 +1718,16 @@ static int hv_24x7_init(void)
 {
 	int r;
 	unsigned long hret;
+	unsigned int pvr = mfspr(SPRN_PVR);
 	struct hv_perf_caps caps;
 
 	if (!firmware_has_feature(FW_FEATURE_LPAR)) {
 		pr_debug("not a virtualized system, not enabling\n");
 		return -ENODEV;
-	} else if (!cur_cpu_spec->oprofile_cpu_type)
-		return -ENODEV;
+	}
 
 	/* POWER8 only supports v1, while POWER9 only supports v2. */
-	if (!strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power8"))
+	if (PVR_VER(pvr) == PVR_POWER8)
 		interface_version = 1;
 	else {
 		interface_version = 2;
diff --git a/arch/powerpc/perf/isa207-common.c b/arch/powerpc/perf/isa207-common.c
index 42abbcfc73da..56301b2bc8ae 100644
--- a/arch/powerpc/perf/isa207-common.c
+++ b/arch/powerpc/perf/isa207-common.c
@@ -686,6 +686,9 @@ int isa207_compute_mmcr(u64 event[], int n_ev,
 				mmcr2 |= MMCR2_FCS(pmc);
 		}
 
+		if (pevents[i]->attr.exclude_idle)
+			mmcr2 |= MMCR2_FCWAIT(pmc);
+
 		if (cpu_has_feature(CPU_FTR_ARCH_31)) {
 			if (pmc <= 4) {
 				val = (event[i] >> p10_EVENT_MMCR3_SHIFT) &
diff --git a/arch/powerpc/perf/isa207-common.h b/arch/powerpc/perf/isa207-common.h
index ff122603989b..f594fa6580d1 100644
--- a/arch/powerpc/perf/isa207-common.h
+++ b/arch/powerpc/perf/isa207-common.h
@@ -249,6 +249,7 @@
 /* Bits in MMCR2 for PowerISA v2.07 */
 #define MMCR2_FCS(pmc)			(1ull << (63 - (((pmc) - 1) * 9)))
 #define MMCR2_FCP(pmc)			(1ull << (62 - (((pmc) - 1) * 9)))
+#define MMCR2_FCWAIT(pmc)		(1ull << (58 - (((pmc) - 1) * 9)))
 #define MMCR2_FCH(pmc)			(1ull << (57 - (((pmc) - 1) * 9)))
 
 #define MAX_ALT				2
diff --git a/arch/powerpc/perf/mpc7450-pmu.c b/arch/powerpc/perf/mpc7450-pmu.c
index e39b15b79a83..552d51a925d3 100644
--- a/arch/powerpc/perf/mpc7450-pmu.c
+++ b/arch/powerpc/perf/mpc7450-pmu.c
@@ -417,8 +417,9 @@ struct power_pmu mpc7450_pmu = {
 
 static int __init init_mpc7450_pmu(void)
 {
-	if (!cur_cpu_spec->oprofile_cpu_type ||
-	    strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc/7450"))
+	unsigned int pvr = mfspr(SPRN_PVR);
+
+	if (PVR_VER(pvr) != PVR_7450)
 		return -ENODEV;
 
 	return register_power_pmu(&mpc7450_pmu);
diff --git a/arch/powerpc/perf/power10-pmu.c b/arch/powerpc/perf/power10-pmu.c
index c6d51e7093cf..9b5133e361a7 100644
--- a/arch/powerpc/perf/power10-pmu.c
+++ b/arch/powerpc/perf/power10-pmu.c
@@ -258,15 +258,26 @@ static const struct attribute_group power10_pmu_format_group = {
 	.attrs = power10_pmu_format_attr,
 };
 
+static struct attribute *power10_pmu_caps_attrs[] = {
+	NULL
+};
+
+static struct attribute_group power10_pmu_caps_group = {
+	.name  = "caps",
+	.attrs = power10_pmu_caps_attrs,
+};
+
 static const struct attribute_group *power10_pmu_attr_groups_dd1[] = {
 	&power10_pmu_format_group,
 	&power10_pmu_events_group_dd1,
+	&power10_pmu_caps_group,
 	NULL,
 };
 
 static const struct attribute_group *power10_pmu_attr_groups[] = {
 	&power10_pmu_format_group,
 	&power10_pmu_events_group,
+	&power10_pmu_caps_group,
 	NULL,
 };
 
@@ -597,12 +608,10 @@ int __init init_power10_pmu(void)
 	unsigned int pvr;
 	int rc;
 
-	/* Comes from cpu_specs[] */
-	if (!cur_cpu_spec->oprofile_cpu_type ||
-	    strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power10"))
+	pvr = mfspr(SPRN_PVR);
+	if (PVR_VER(pvr) != PVR_POWER10)
 		return -ENODEV;
 
-	pvr = mfspr(SPRN_PVR);
 	/* Add the ppmu flag for power10 DD1 */
 	if ((PVR_CFG(pvr) == 1))
 		power10_pmu.flags |= PPMU_P10_DD1;
diff --git a/arch/powerpc/perf/power5+-pmu.c b/arch/powerpc/perf/power5+-pmu.c
index 753b4740ef64..b4708ab73145 100644
--- a/arch/powerpc/perf/power5+-pmu.c
+++ b/arch/powerpc/perf/power5+-pmu.c
@@ -679,9 +679,9 @@ static struct power_pmu power5p_pmu = {
 
 int __init init_power5p_pmu(void)
 {
-	if (!cur_cpu_spec->oprofile_cpu_type ||
-	    (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power5+")
-	     && strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power5++")))
+	unsigned int pvr = mfspr(SPRN_PVR);
+
+	if (PVR_VER(pvr) != PVR_POWER5p)
 		return -ENODEV;
 
 	return register_power_pmu(&power5p_pmu);
diff --git a/arch/powerpc/perf/power5-pmu.c b/arch/powerpc/perf/power5-pmu.c
index 1f83c4cba0aa..c6aefd0a1cc8 100644
--- a/arch/powerpc/perf/power5-pmu.c
+++ b/arch/powerpc/perf/power5-pmu.c
@@ -620,8 +620,9 @@ static struct power_pmu power5_pmu = {
 
 int __init init_power5_pmu(void)
 {
-	if (!cur_cpu_spec->oprofile_cpu_type ||
-	    strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power5"))
+	unsigned int pvr = mfspr(SPRN_PVR);
+
+	if (PVR_VER(pvr) != PVR_POWER5)
 		return -ENODEV;
 
 	return register_power_pmu(&power5_pmu);
diff --git a/arch/powerpc/perf/power6-pmu.c b/arch/powerpc/perf/power6-pmu.c
index aec746f86804..5729b6e059de 100644
--- a/arch/powerpc/perf/power6-pmu.c
+++ b/arch/powerpc/perf/power6-pmu.c
@@ -541,8 +541,9 @@ static struct power_pmu power6_pmu = {
 
 int __init init_power6_pmu(void)
 {
-	if (!cur_cpu_spec->oprofile_cpu_type ||
-	    strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power6"))
+	unsigned int pvr = mfspr(SPRN_PVR);
+
+	if (PVR_VER(pvr) != PVR_POWER6)
 		return -ENODEV;
 
 	return register_power_pmu(&power6_pmu);
diff --git a/arch/powerpc/perf/power7-pmu.c b/arch/powerpc/perf/power7-pmu.c
index a74211410b8d..c95ccf2e28da 100644
--- a/arch/powerpc/perf/power7-pmu.c
+++ b/arch/powerpc/perf/power7-pmu.c
@@ -447,11 +447,12 @@ static struct power_pmu power7_pmu = {
 
 int __init init_power7_pmu(void)
 {
-	if (!cur_cpu_spec->oprofile_cpu_type ||
-	    strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power7"))
+	unsigned int pvr = mfspr(SPRN_PVR);
+
+	if (PVR_VER(pvr) != PVR_POWER7 && PVR_VER(pvr) != PVR_POWER7p)
 		return -ENODEV;
 
-	if (pvr_version_is(PVR_POWER7p))
+	if (PVR_VER(pvr) == PVR_POWER7p)
 		power7_pmu.flags |= PPMU_SIAR_VALID;
 
 	return register_power_pmu(&power7_pmu);
diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c
index e37b1e714d2b..ef9685065aaf 100644
--- a/arch/powerpc/perf/power8-pmu.c
+++ b/arch/powerpc/perf/power8-pmu.c
@@ -187,9 +187,19 @@ static const struct attribute_group power8_pmu_events_group = {
 	.attrs = power8_events_attr,
 };
 
+static struct attribute *power8_pmu_caps_attrs[] = {
+	NULL
+};
+
+static struct attribute_group power8_pmu_caps_group = {
+	.name  = "caps",
+	.attrs = power8_pmu_caps_attrs,
+};
+
 static const struct attribute_group *power8_pmu_attr_groups[] = {
 	&isa207_pmu_format_group,
 	&power8_pmu_events_group,
+	&power8_pmu_caps_group,
 	NULL,
 };
 
@@ -381,9 +391,10 @@ static struct power_pmu power8_pmu = {
 int __init init_power8_pmu(void)
 {
 	int rc;
+	unsigned int pvr = mfspr(SPRN_PVR);
 
-	if (!cur_cpu_spec->oprofile_cpu_type ||
-	    strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power8"))
+	if (PVR_VER(pvr) != PVR_POWER8E && PVR_VER(pvr) != PVR_POWER8NVL &&
+	    PVR_VER(pvr) != PVR_POWER8)
 		return -ENODEV;
 
 	rc = register_power_pmu(&power8_pmu);
diff --git a/arch/powerpc/perf/power9-pmu.c b/arch/powerpc/perf/power9-pmu.c
index 3ad40ffb9256..cb6a7dc02dd7 100644
--- a/arch/powerpc/perf/power9-pmu.c
+++ b/arch/powerpc/perf/power9-pmu.c
@@ -258,9 +258,19 @@ static const struct attribute_group power9_pmu_format_group = {
 	.attrs = power9_pmu_format_attr,
 };
 
+static struct attribute *power9_pmu_caps_attrs[] = {
+	NULL
+};
+
+static struct attribute_group power9_pmu_caps_group = {
+	.name  = "caps",
+	.attrs = power9_pmu_caps_attrs,
+};
+
 static const struct attribute_group *power9_pmu_attr_groups[] = {
 	&power9_pmu_format_group,
 	&power9_pmu_events_group,
+	&power9_pmu_caps_group,
 	NULL,
 };
 
@@ -457,9 +467,7 @@ int __init init_power9_pmu(void)
 	int rc = 0;
 	unsigned int pvr = mfspr(SPRN_PVR);
 
-	/* Comes from cpu_specs[] */
-	if (!cur_cpu_spec->oprofile_cpu_type ||
-	    strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power9"))
+	if (PVR_VER(pvr) != PVR_POWER9)
 		return -ENODEV;
 
 	/* Blacklist events */
diff --git a/arch/powerpc/perf/ppc970-pmu.c b/arch/powerpc/perf/ppc970-pmu.c
index 09802482ba72..762676fb839e 100644
--- a/arch/powerpc/perf/ppc970-pmu.c
+++ b/arch/powerpc/perf/ppc970-pmu.c
@@ -491,9 +491,10 @@ static struct power_pmu ppc970_pmu = {
 
 int __init init_ppc970_pmu(void)
 {
-	if (!cur_cpu_spec->oprofile_cpu_type ||
-	    (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/970")
-	     && strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/970MP")))
+	unsigned int pvr = mfspr(SPRN_PVR);
+
+	if (PVR_VER(pvr) != PVR_970 && PVR_VER(pvr) != PVR_970MP &&
+	    PVR_VER(pvr) != PVR_970FX && PVR_VER(pvr) != PVR_970GX)
 		return -ENODEV;
 
 	return register_power_pmu(&ppc970_pmu);