Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Catalin Marinas:
 "These are the arm64 updates for 6.19.

  The biggest part is the Arm MPAM driver under drivers/resctrl/.
  There's a patch touching mm/ to handle spurious faults for huge pmd
  (similar to the pte version). The corresponding arm64 part allows us
  to avoid the TLB maintenance if a (huge) page is reused after a write
  fault. There's EFI refactoring to allow runtime services with
  preemption enabled and the rest is the usual perf/PMU updates and
  several cleanups/typos.

  Summary:

  Core features:

   - Basic Arm MPAM (Memory system resource Partitioning And Monitoring)
     driver under drivers/resctrl/ which makes use of the fs/rectrl/ API

  Perf and PMU:

   - Avoid cycle counter on multi-threaded CPUs

   - Extend CSPMU device probing and add additional filtering support
     for NVIDIA implementations

   - Add support for the PMUs on the NoC S3 interconnect

   - Add additional compatible strings for new Cortex and C1 CPUs

   - Add support for data source filtering to the SPE driver

   - Add support for i.MX8QM and "DB" PMU in the imx PMU driver

  Memory managemennt:

   - Avoid broadcast TLBI if page reused in write fault

   - Elide TLB invalidation if the old PTE was not valid

   - Drop redundant cpu_set_*_tcr_t0sz() macros

   - Propagate pgtable_alloc() errors outside of __create_pgd_mapping()

   - Propagate return value from __change_memory_common()

  ACPI and EFI:

   - Call EFI runtime services without disabling preemption

   - Remove unused ACPI function

  Miscellaneous:

   - ptrace support to disable streaming on SME-only systems

   - Improve sysreg generation to include a 'Prefix' descriptor

   - Replace __ASSEMBLY__ with __ASSEMBLER__

   - Align register dumps in the kselftest zt-test

   - Remove some no longer used macros/functions

   - Various spelling corrections"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (94 commits)
  arm64/mm: Document why linear map split failure upon vm_reset_perms is not problematic
  arm64/pageattr: Propagate return value from __change_memory_common
  arm64/sysreg: Remove unused define ARM64_FEATURE_FIELD_BITS
  KVM: arm64: selftests: Consider all 7 possible levels of cache
  KVM: arm64: selftests: Remove ARM64_FEATURE_FIELD_BITS and its last user
  arm64: atomics: lse: Remove unused parameters from ATOMIC_FETCH_OP_AND macros
  Documentation/arm64: Fix the typo of register names
  ACPI: GTDT: Get rid of acpi_arch_timer_mem_init()
  perf: arm_spe: Add support for filtering on data source
  perf: Add perf_event_attr::config4
  perf/imx_ddr: Add support for PMU in DB (system interconnects)
  perf/imx_ddr: Get and enable optional clks
  perf/imx_ddr: Move ida_alloc() from ddr_perf_init() to ddr_perf_probe()
  dt-bindings: perf: fsl-imx-ddr: Add compatible string for i.MX8QM, i.MX8QXP and i.MX8DXL
  arm64: remove duplicate ARCH_HAS_MEM_ENCRYPT
  arm64: mm: use untagged address to calculate page index
  MAINTAINERS: new entry for MPAM Driver
  arm_mpam: Add kunit tests for props_mismatch()
  arm_mpam: Add kunit test for bitmap reset
  arm_mpam: Add helper to reset saved mbwu state
  ...

drivers/perf/arm-ni.c

@@ -21,6 +21,11 @@
 
 #define NI_CHILD_NODE_INFO	0x004
 #define NI_CHILD_PTR(n)		(0x008 + (n) * 4)
+#define NI_NUM_SUB_FEATURES	0x100
+#define NI_SUB_FEATURE_TYPE(n)	(0x108 + (n) * 8)
+#define NI_SUB_FEATURE_PTR(n)	(0x10c + (n) * 8)
+
+#define NI_SUB_FEATURE_TYPE_FCU	0x2
 
 #define NI700_PMUSELA		0x00c
 
@@ -33,9 +38,10 @@
 #define NI_PIDR2_VERSION	GENMASK(7, 4)
 
 /* PMU node */
-#define NI_PMEVCNTR(n)		(0x008 + (n) * 8)
-#define NI_PMCCNTR_L		0x0f8
-#define NI_PMCCNTR_U		0x0fc
+#define NI700_PMEVCNTR(n)	(0x008 + (n) * 8)
+#define NI700_PMCCNTR_L		0x0f8
+#define NI_PMEVCNTR(n)		(0x200 + (n) * 8)
+#define NI_PMCCNTR_L		0x2f8
 #define NI_PMEVTYPER(n)		(0x400 + (n) * 4)
 #define NI_PMEVTYPER_NODE_TYPE	GENMASK(12, 9)
 #define NI_PMEVTYPER_NODE_ID	GENMASK(8, 0)
@@ -66,6 +72,8 @@
 enum ni_part {
 	PART_NI_700 = 0x43b,
 	PART_NI_710AE = 0x43d,
+	PART_NOC_S3 = 0x43f,
+	PART_SI_L1 = 0x455,
 };
 
 enum ni_node_type {
@@ -79,6 +87,10 @@ enum ni_node_type {
 	NI_HSNI,
 	NI_HMNI,
 	NI_PMNI,
+	NI_TSNI,
+	NI_TMNI,
+	NI_CMNI = 0x0e,
+	NI_MCN = 0x63,
 };
 
 struct arm_ni_node {
@@ -179,6 +191,9 @@ static struct attribute *arm_ni_event_attrs[] = {
 	NI_EVENT_ATTR(hsni, NI_HSNI),
 	NI_EVENT_ATTR(hmni, NI_HMNI),
 	NI_EVENT_ATTR(pmni, NI_PMNI),
+	NI_EVENT_ATTR(tsni, NI_TSNI),
+	NI_EVENT_ATTR(tmni, NI_TMNI),
+	NI_EVENT_ATTR(cmni, NI_CMNI),
 	NULL
 };
 
@@ -308,9 +323,15 @@ static int arm_ni_validate_group(struct perf_event *event)
 	return 0;
 }
 
+static bool arm_ni_is_7xx(const struct arm_ni *ni)
+{
+	return ni->part == PART_NI_700 || ni->part == PART_NI_710AE;
+}
+
 static int arm_ni_event_init(struct perf_event *event)
 {
 	struct arm_ni_cd *cd = pmu_to_cd(event->pmu);
+	struct arm_ni *ni;
 
 	if (event->attr.type != event->pmu->type)
 		return -ENOENT;
@@ -318,7 +339,10 @@ static int arm_ni_event_init(struct perf_event *event)
 	if (is_sampling_event(event))
 		return -EINVAL;
 
-	event->cpu = cd_to_ni(cd)->cpu;
+	ni = cd_to_ni(cd);
+	event->cpu = ni->cpu;
+	event->hw.flags = arm_ni_is_7xx(ni);
+
 	if (NI_EVENT_TYPE(event) == NI_PMU)
 		return arm_ni_validate_group(event);
 
@@ -332,16 +356,16 @@ static int arm_ni_event_init(struct perf_event *event)
 	return -EINVAL;
 }
 
-static u64 arm_ni_read_ccnt(struct arm_ni_cd *cd)
+static u64 arm_ni_read_ccnt(void __iomem *pmccntr)
 {
 	u64 l, u_old, u_new;
 	int retries = 3; /* 1st time unlucky, 2nd improbable, 3rd just broken */
 
-	u_new = readl_relaxed(cd->pmu_base + NI_PMCCNTR_U);
+	u_new = readl_relaxed(pmccntr + 4);
 	do {
 		u_old = u_new;
-		l = readl_relaxed(cd->pmu_base + NI_PMCCNTR_L);
-		u_new = readl_relaxed(cd->pmu_base + NI_PMCCNTR_U);
+		l = readl_relaxed(pmccntr);
+		u_new = readl_relaxed(pmccntr + 4);
 	} while (u_new != u_old && --retries);
 	WARN_ON(!retries);
 
@@ -350,7 +374,6 @@ static u64 arm_ni_read_ccnt(struct arm_ni_cd *cd)
 
 static void arm_ni_event_read(struct perf_event *event)
 {
-	struct arm_ni_cd *cd = pmu_to_cd(event->pmu);
 	struct hw_perf_event *hw = &event->hw;
 	u64 count, prev;
 	bool ccnt = hw->idx == NI_CCNT_IDX;
@@ -358,9 +381,9 @@ static void arm_ni_event_read(struct perf_event *event)
 	do {
 		prev = local64_read(&hw->prev_count);
 		if (ccnt)
-			count = arm_ni_read_ccnt(cd);
+			count = arm_ni_read_ccnt((void __iomem *)event->hw.event_base);
 		else
-			count = readl_relaxed(cd->pmu_base + NI_PMEVCNTR(hw->idx));
+			count = readl_relaxed((void __iomem *)event->hw.event_base);
 	} while (local64_cmpxchg(&hw->prev_count, prev, count) != prev);
 
 	count -= prev;
@@ -385,16 +408,16 @@ static void arm_ni_event_stop(struct perf_event *event, int flags)
 		arm_ni_event_read(event);
 }
 
-static void arm_ni_init_ccnt(struct arm_ni_cd *cd)
+static void arm_ni_init_ccnt(struct hw_perf_event *hw)
 {
-	local64_set(&cd->ccnt->hw.prev_count, S64_MIN);
-	lo_hi_writeq_relaxed(S64_MIN, cd->pmu_base + NI_PMCCNTR_L);
+	local64_set(&hw->prev_count, S64_MIN);
+	lo_hi_writeq_relaxed(S64_MIN, (void __iomem *)hw->event_base);
 }
 
-static void arm_ni_init_evcnt(struct arm_ni_cd *cd, int idx)
+static void arm_ni_init_evcnt(struct hw_perf_event *hw)
 {
-	local64_set(&cd->evcnt[idx]->hw.prev_count, S32_MIN);
-	writel_relaxed(S32_MIN, cd->pmu_base + NI_PMEVCNTR(idx));
+	local64_set(&hw->prev_count, S32_MIN);
+	writel_relaxed(S32_MIN, (void __iomem *)hw->event_base);
 }
 
 static int arm_ni_event_add(struct perf_event *event, int flags)
@@ -409,8 +432,10 @@ static int arm_ni_event_add(struct perf_event *event, int flags)
 		if (cd->ccnt)
 			return -ENOSPC;
 		hw->idx = NI_CCNT_IDX;
+		hw->event_base = (unsigned long)cd->pmu_base +
+				 (hw->flags ? NI700_PMCCNTR_L : NI_PMCCNTR_L);
 		cd->ccnt = event;
-		arm_ni_init_ccnt(cd);
+		arm_ni_init_ccnt(hw);
 	} else {
 		hw->idx = 0;
 		while (cd->evcnt[hw->idx]) {
@@ -420,7 +445,9 @@ static int arm_ni_event_add(struct perf_event *event, int flags)
 		cd->evcnt[hw->idx] = event;
 		unit = (void *)hw->config_base;
 		unit->event[hw->idx] = NI_EVENT_EVENTID(event);
-		arm_ni_init_evcnt(cd, hw->idx);
+		hw->event_base = (unsigned long)cd->pmu_base +
+				 (hw->flags ? NI700_PMEVCNTR(hw->idx) : NI_PMEVCNTR(hw->idx));
+		arm_ni_init_evcnt(hw);
 		lo_hi_writeq_relaxed(le64_to_cpu(unit->pmusel), unit->pmusela);
 
 		reg = FIELD_PREP(NI_PMEVTYPER_NODE_TYPE, type) |
@@ -457,7 +484,7 @@ static irqreturn_t arm_ni_handle_irq(int irq, void *dev_id)
 			ret = IRQ_HANDLED;
 			if (!(WARN_ON(!cd->ccnt))) {
 				arm_ni_event_read(cd->ccnt);
-				arm_ni_init_ccnt(cd);
+				arm_ni_init_ccnt(&cd->ccnt->hw);
 			}
 		}
 		for (int i = 0; i < NI_NUM_COUNTERS; i++) {
@@ -466,7 +493,7 @@ static irqreturn_t arm_ni_handle_irq(int irq, void *dev_id)
 			ret = IRQ_HANDLED;
 			if (!(WARN_ON(!cd->evcnt[i]))) {
 				arm_ni_event_read(cd->evcnt[i]);
-				arm_ni_init_evcnt(cd, i);
+				arm_ni_init_evcnt(&cd->evcnt[i]->hw);
 			}
 		}
 		writel_relaxed(reg, cd->pmu_base + NI_PMOVSCLR);
@@ -476,6 +503,25 @@ static irqreturn_t arm_ni_handle_irq(int irq, void *dev_id)
 	}
 }
 
+static void __iomem *arm_ni_get_pmusel(struct arm_ni *ni, void __iomem *unit_base)
+{
+	u32 type, ptr, num;
+
+	if (arm_ni_is_7xx(ni))
+		return unit_base + NI700_PMUSELA;
+
+	num = readl_relaxed(unit_base + NI_NUM_SUB_FEATURES);
+	for (int i = 0; i < num; i++) {
+		type = readl_relaxed(unit_base + NI_SUB_FEATURE_TYPE(i));
+		if (type != NI_SUB_FEATURE_TYPE_FCU)
+			continue;
+		ptr = readl_relaxed(unit_base + NI_SUB_FEATURE_PTR(i));
+		return ni->base + ptr;
+	}
+	/* Should be impossible */
+	return NULL;
+}
+
 static int arm_ni_init_cd(struct arm_ni *ni, struct arm_ni_node *node, u64 res_start)
 {
 	struct arm_ni_cd *cd = ni->cds + node->id;
@@ -512,13 +558,18 @@ static int arm_ni_init_cd(struct arm_ni *ni, struct arm_ni_node *node, u64 res_s
 		case NI_HSNI:
 		case NI_HMNI:
 		case NI_PMNI:
-			unit->pmusela = unit_base + NI700_PMUSELA;
+		case NI_TSNI:
+		case NI_TMNI:
+		case NI_CMNI:
+			unit->pmusela = arm_ni_get_pmusel(ni, unit_base);
 			writel_relaxed(1, unit->pmusela);
 			if (readl_relaxed(unit->pmusela) != 1)
 				dev_info(ni->dev, "No access to node 0x%04x%04x\n", unit->id, unit->type);
 			else
 				unit->ns = true;
 			break;
+		case NI_MCN:
+			break;
 		default:
 			/*
 			 * e.g. FMU - thankfully bits 3:2 of FMU_ERR_FR0 are RES0 so
@@ -649,6 +700,8 @@ static int arm_ni_probe(struct platform_device *pdev)
 	switch (part) {
 	case PART_NI_700:
 	case PART_NI_710AE:
+	case PART_NOC_S3:
+	case PART_SI_L1:
 		break;
 	default:
 		dev_WARN(&pdev->dev, "Unknown part number: 0x%03x, this may go badly\n", part);

drivers/perf/arm_cspmu/arm_cspmu.c

@@ -322,14 +322,14 @@ static struct arm_cspmu_impl_match impl_match[] = {
 	{
 		.module_name	= "nvidia_cspmu",
 		.pmiidr_val	= ARM_CSPMU_IMPL_ID_NVIDIA,
-		.pmiidr_mask	= ARM_CSPMU_PMIIDR_IMPLEMENTER,
+		.pmiidr_mask	= PMIIDR_IMPLEMENTER,
 		.module		= NULL,
 		.impl_init_ops	= NULL,
 	},
 	{
 		.module_name	= "ampere_cspmu",
 		.pmiidr_val	= ARM_CSPMU_IMPL_ID_AMPERE,
-		.pmiidr_mask	= ARM_CSPMU_PMIIDR_IMPLEMENTER,
+		.pmiidr_mask	= PMIIDR_IMPLEMENTER,
 		.module		= NULL,
 		.impl_init_ops	= NULL,
 	},
@@ -351,6 +351,44 @@ static struct arm_cspmu_impl_match *arm_cspmu_impl_match_get(u32 pmiidr)
 	return NULL;
 }
 
+static u32 arm_cspmu_get_pmiidr(struct arm_cspmu *cspmu)
+{
+	u32 pmiidr, pmpidr;
+
+	pmiidr = readl(cspmu->base0 + PMIIDR);
+
+	if (pmiidr != 0)
+		return pmiidr;
+
+	/* Construct PMIIDR value from PMPIDRs. */
+
+	pmpidr = readl(cspmu->base0 + PMPIDR0);
+	pmiidr |= FIELD_PREP(PMIIDR_PRODUCTID_PART_0,
+				FIELD_GET(PMPIDR0_PART_0, pmpidr));
+
+	pmpidr = readl(cspmu->base0 + PMPIDR1);
+	pmiidr |= FIELD_PREP(PMIIDR_PRODUCTID_PART_1,
+				FIELD_GET(PMPIDR1_PART_1, pmpidr));
+	pmiidr |= FIELD_PREP(PMIIDR_IMPLEMENTER_DES_0,
+				FIELD_GET(PMPIDR1_DES_0, pmpidr));
+
+	pmpidr = readl(cspmu->base0 + PMPIDR2);
+	pmiidr |= FIELD_PREP(PMIIDR_VARIANT,
+				FIELD_GET(PMPIDR2_REVISION, pmpidr));
+	pmiidr |= FIELD_PREP(PMIIDR_IMPLEMENTER_DES_1,
+				FIELD_GET(PMPIDR2_DES_1, pmpidr));
+
+	pmpidr = readl(cspmu->base0 + PMPIDR3);
+	pmiidr |= FIELD_PREP(PMIIDR_REVISION,
+				FIELD_GET(PMPIDR3_REVAND, pmpidr));
+
+	pmpidr = readl(cspmu->base0 + PMPIDR4);
+	pmiidr |= FIELD_PREP(PMIIDR_IMPLEMENTER_DES_2,
+				FIELD_GET(PMPIDR4_DES_2, pmpidr));
+
+	return pmiidr;
+}
+
 #define DEFAULT_IMPL_OP(name)	.name = arm_cspmu_##name
 
 static int arm_cspmu_init_impl_ops(struct arm_cspmu *cspmu)
@@ -361,7 +399,7 @@ static int arm_cspmu_init_impl_ops(struct arm_cspmu *cspmu)
 
 	/* Start with a default PMU implementation */
 	cspmu->impl.module = THIS_MODULE;
-	cspmu->impl.pmiidr = readl(cspmu->base0 + PMIIDR);
+	cspmu->impl.pmiidr = arm_cspmu_get_pmiidr(cspmu);
 	cspmu->impl.ops = (struct arm_cspmu_impl_ops) {
 		DEFAULT_IMPL_OP(get_event_attrs),
 		DEFAULT_IMPL_OP(get_format_attrs),
@@ -815,6 +853,10 @@ static void arm_cspmu_stop(struct perf_event *event, int pmu_flags)
 		return;
 
 	arm_cspmu_disable_counter(cspmu, hwc->idx);
+
+	if (cspmu->impl.ops.reset_ev_filter)
+		cspmu->impl.ops.reset_ev_filter(cspmu, event);
+
 	arm_cspmu_event_update(event);
 
 	hwc->state |= PERF_HES_STOPPED | PERF_HES_UPTODATE;
@@ -1365,8 +1407,10 @@ void arm_cspmu_impl_unregister(const struct arm_cspmu_impl_match *impl_match)
 
 	/* Unbind the driver from all matching backend devices. */
 	while ((dev = driver_find_device(&arm_cspmu_driver.driver, NULL,
-			match, arm_cspmu_match_device)))
+			match, arm_cspmu_match_device))) {
 		device_release_driver(dev);
+		put_device(dev);
+	}
 
 	mutex_lock(&arm_cspmu_lock);
 

drivers/perf/arm_cspmu/arm_cspmu.h

@@ -86,6 +86,11 @@
 #define PMCFGR				0xE00
 #define PMCR				0xE04
 #define PMIIDR				0xE08
+#define PMPIDR0				0xFE0
+#define PMPIDR1				0xFE4
+#define PMPIDR2				0xFE8
+#define PMPIDR3				0xFEC
+#define PMPIDR4				0xFD0
 
 /* PMCFGR register field */
 #define PMCFGR_NCG			GENMASK(31, 28)
@@ -115,8 +120,34 @@
 #define PMCR_E				BIT(0)
 
 /* PMIIDR register field */
-#define ARM_CSPMU_PMIIDR_IMPLEMENTER	GENMASK(11, 0)
-#define ARM_CSPMU_PMIIDR_PRODUCTID	GENMASK(31, 20)
+#define PMIIDR_IMPLEMENTER		GENMASK(11, 0)
+#define PMIIDR_IMPLEMENTER_DES_0	GENMASK(3, 0)
+#define PMIIDR_IMPLEMENTER_DES_1	GENMASK(6, 4)
+#define PMIIDR_IMPLEMENTER_DES_2	GENMASK(11, 8)
+#define PMIIDR_REVISION			GENMASK(15, 12)
+#define PMIIDR_VARIANT			GENMASK(19, 16)
+#define PMIIDR_PRODUCTID		GENMASK(31, 20)
+#define PMIIDR_PRODUCTID_PART_0		GENMASK(27, 20)
+#define PMIIDR_PRODUCTID_PART_1		GENMASK(31, 28)
+
+/* PMPIDR0 register field */
+#define PMPIDR0_PART_0			GENMASK(7, 0)
+
+/* PMPIDR1 register field */
+#define PMPIDR1_DES_0			GENMASK(7, 4)
+#define PMPIDR1_PART_1			GENMASK(3, 0)
+
+/* PMPIDR2 register field */
+#define PMPIDR2_REVISION		GENMASK(7, 4)
+#define PMPIDR2_DES_1			GENMASK(2, 0)
+
+/* PMPIDR3 register field */
+#define PMPIDR3_REVAND			GENMASK(7, 4)
+#define PMPIDR3_CMOD			GENMASK(3, 0)
+
+/* PMPIDR4 register field */
+#define PMPIDR4_SIZE			GENMASK(7, 4)
+#define PMPIDR4_DES_2			GENMASK(3, 0)
 
 /* JEDEC-assigned JEP106 identification code */
 #define ARM_CSPMU_IMPL_ID_NVIDIA	0x36B
@@ -152,11 +183,13 @@ struct arm_cspmu_impl_ops {
 	bool (*is_cycle_counter_event)(const struct perf_event *event);
 	/* Decode event type/id from configs */
 	u32 (*event_type)(const struct perf_event *event);
-	/* Set event filters */
+	/* Set/reset event filters */
 	void (*set_cc_filter)(struct arm_cspmu *cspmu,
 			      const struct perf_event *event);
 	void (*set_ev_filter)(struct arm_cspmu *cspmu,
 			      const struct perf_event *event);
+	void (*reset_ev_filter)(struct arm_cspmu *cspmu,
+				const struct perf_event *event);
 	/* Implementation specific event validation */
 	int (*validate_event)(struct arm_cspmu *cspmu,
 			      struct perf_event *event);

drivers/perf/arm_cspmu/nvidia_cspmu.c

@@ -23,7 +23,7 @@
 
 #define NV_GENERIC_FILTER_ID_MASK    GENMASK_ULL(31, 0)
 
-#define NV_PRODID_MASK               GENMASK(31, 0)
+#define NV_PRODID_MASK	(PMIIDR_PRODUCTID | PMIIDR_VARIANT | PMIIDR_REVISION)
 
 #define NV_FORMAT_NAME_GENERIC	0
 
@@ -40,10 +40,21 @@
 
 struct nv_cspmu_ctx {
 	const char *name;
-	u32 filter_mask;
-	u32 filter_default_val;
+
 	struct attribute **event_attr;
 	struct attribute **format_attr;
+
+	u32 filter_mask;
+	u32 filter_default_val;
+	u32 filter2_mask;
+	u32 filter2_default_val;
+
+	u32 (*get_filter)(const struct perf_event *event);
+	u32 (*get_filter2)(const struct perf_event *event);
+
+	void *data;
+
+	int (*init_data)(struct arm_cspmu *cspmu);
 };
 
 static struct attribute *scf_pmu_event_attrs[] = {
@@ -144,6 +155,7 @@ static struct attribute *cnvlink_pmu_format_attrs[] = {
 static struct attribute *generic_pmu_format_attrs[] = {
 	ARM_CSPMU_FORMAT_EVENT_ATTR,
 	ARM_CSPMU_FORMAT_FILTER_ATTR,
+	ARM_CSPMU_FORMAT_FILTER2_ATTR,
 	NULL,
 };
 
@@ -184,13 +196,36 @@ static u32 nv_cspmu_event_filter(const struct perf_event *event)
 	return filter_val;
 }
 
+static u32 nv_cspmu_event_filter2(const struct perf_event *event)
+{
+	const struct nv_cspmu_ctx *ctx =
+		to_nv_cspmu_ctx(to_arm_cspmu(event->pmu));
+
+	const u32 filter_val = event->attr.config2 & ctx->filter2_mask;
+
+	if (filter_val == 0)
+		return ctx->filter2_default_val;
+
+	return filter_val;
+}
+
 static void nv_cspmu_set_ev_filter(struct arm_cspmu *cspmu,
 				   const struct perf_event *event)
 {
-	u32 filter = nv_cspmu_event_filter(event);
-	u32 offset = PMEVFILTR + (4 * event->hw.idx);
+	u32 filter, offset;
+	const struct nv_cspmu_ctx *ctx =
+		to_nv_cspmu_ctx(to_arm_cspmu(event->pmu));
+	offset = 4 * event->hw.idx;
 
-	writel(filter, cspmu->base0 + offset);
+	if (ctx->get_filter) {
+		filter = ctx->get_filter(event);
+		writel(filter, cspmu->base0 + PMEVFILTR + offset);
+	}
+
+	if (ctx->get_filter2) {
+		filter = ctx->get_filter2(event);
+		writel(filter, cspmu->base0 + PMEVFILT2R + offset);
+	}
 }
 
 static void nv_cspmu_set_cc_filter(struct arm_cspmu *cspmu,
@@ -210,74 +245,120 @@ enum nv_cspmu_name_fmt {
 struct nv_cspmu_match {
 	u32 prodid;
 	u32 prodid_mask;
-	u64 filter_mask;
-	u32 filter_default_val;
 	const char *name_pattern;
 	enum nv_cspmu_name_fmt name_fmt;
-	struct attribute **event_attr;
-	struct attribute **format_attr;
+	struct nv_cspmu_ctx template_ctx;
+	struct arm_cspmu_impl_ops ops;
 };
 
 static const struct nv_cspmu_match nv_cspmu_match[] = {
 	{
-	  .prodid = 0x103,
+	  .prodid = 0x10300000,
 	  .prodid_mask = NV_PRODID_MASK,
-	  .filter_mask = NV_PCIE_FILTER_ID_MASK,
-	  .filter_default_val = NV_PCIE_FILTER_ID_MASK,
 	  .name_pattern = "nvidia_pcie_pmu_%u",
 	  .name_fmt = NAME_FMT_SOCKET,
-	  .event_attr = mcf_pmu_event_attrs,
-	  .format_attr = pcie_pmu_format_attrs
+	  .template_ctx = {
+		.event_attr = mcf_pmu_event_attrs,
+		.format_attr = pcie_pmu_format_attrs,
+		.filter_mask = NV_PCIE_FILTER_ID_MASK,
+		.filter_default_val = NV_PCIE_FILTER_ID_MASK,
+		.filter2_mask = 0x0,
+		.filter2_default_val = 0x0,
+		.get_filter = nv_cspmu_event_filter,
+		.get_filter2 = NULL,
+		.data = NULL,
+		.init_data = NULL
+	  },
 	},
 	{
-	  .prodid = 0x104,
+	  .prodid = 0x10400000,
 	  .prodid_mask = NV_PRODID_MASK,
-	  .filter_mask = NV_NVL_C2C_FILTER_ID_MASK,
-	  .filter_default_val = NV_NVL_C2C_FILTER_ID_MASK,
 	  .name_pattern = "nvidia_nvlink_c2c1_pmu_%u",
 	  .name_fmt = NAME_FMT_SOCKET,
-	  .event_attr = mcf_pmu_event_attrs,
-	  .format_attr = nvlink_c2c_pmu_format_attrs
+	  .template_ctx = {
+		.event_attr = mcf_pmu_event_attrs,
+		.format_attr = nvlink_c2c_pmu_format_attrs,
+		.filter_mask = NV_NVL_C2C_FILTER_ID_MASK,
+		.filter_default_val = NV_NVL_C2C_FILTER_ID_MASK,
+		.filter2_mask = 0x0,
+		.filter2_default_val = 0x0,
+		.get_filter = nv_cspmu_event_filter,
+		.get_filter2 = NULL,
+		.data = NULL,
+		.init_data = NULL
+	  },
 	},
 	{
-	  .prodid = 0x105,
+	  .prodid = 0x10500000,
 	  .prodid_mask = NV_PRODID_MASK,
-	  .filter_mask = NV_NVL_C2C_FILTER_ID_MASK,
-	  .filter_default_val = NV_NVL_C2C_FILTER_ID_MASK,
 	  .name_pattern = "nvidia_nvlink_c2c0_pmu_%u",
 	  .name_fmt = NAME_FMT_SOCKET,
-	  .event_attr = mcf_pmu_event_attrs,
-	  .format_attr = nvlink_c2c_pmu_format_attrs
+	  .template_ctx = {
+		.event_attr = mcf_pmu_event_attrs,
+		.format_attr = nvlink_c2c_pmu_format_attrs,
+		.filter_mask = NV_NVL_C2C_FILTER_ID_MASK,
+		.filter_default_val = NV_NVL_C2C_FILTER_ID_MASK,
+		.filter2_mask = 0x0,
+		.filter2_default_val = 0x0,
+		.get_filter = nv_cspmu_event_filter,
+		.get_filter2 = NULL,
+		.data = NULL,
+		.init_data = NULL
+	  },
 	},
 	{
-	  .prodid = 0x106,
+	  .prodid = 0x10600000,
 	  .prodid_mask = NV_PRODID_MASK,
-	  .filter_mask = NV_CNVL_FILTER_ID_MASK,
-	  .filter_default_val = NV_CNVL_FILTER_ID_MASK,
 	  .name_pattern = "nvidia_cnvlink_pmu_%u",
 	  .name_fmt = NAME_FMT_SOCKET,
-	  .event_attr = mcf_pmu_event_attrs,
-	  .format_attr = cnvlink_pmu_format_attrs
+	  .template_ctx = {
+		.event_attr = mcf_pmu_event_attrs,
+		.format_attr = cnvlink_pmu_format_attrs,
+		.filter_mask = NV_CNVL_FILTER_ID_MASK,
+		.filter_default_val = NV_CNVL_FILTER_ID_MASK,
+		.filter2_mask = 0x0,
+		.filter2_default_val = 0x0,
+		.get_filter = nv_cspmu_event_filter,
+		.get_filter2 = NULL,
+		.data = NULL,
+		.init_data = NULL
+	  },
 	},
 	{
-	  .prodid = 0x2CF,
+	  .prodid = 0x2CF00000,
 	  .prodid_mask = NV_PRODID_MASK,
-	  .filter_mask = 0x0,
-	  .filter_default_val = 0x0,
 	  .name_pattern = "nvidia_scf_pmu_%u",
 	  .name_fmt = NAME_FMT_SOCKET,
-	  .event_attr = scf_pmu_event_attrs,
-	  .format_attr = scf_pmu_format_attrs
+	  .template_ctx = {
+		.event_attr = scf_pmu_event_attrs,
+		.format_attr = scf_pmu_format_attrs,
+		.filter_mask = 0x0,
+		.filter_default_val = 0x0,
+		.filter2_mask = 0x0,
+		.filter2_default_val = 0x0,
+		.get_filter = nv_cspmu_event_filter,
+		.get_filter2 = NULL,
+		.data = NULL,
+		.init_data = NULL
+	  },
 	},
 	{
 	  .prodid = 0,
 	  .prodid_mask = 0,
-	  .filter_mask = NV_GENERIC_FILTER_ID_MASK,
-	  .filter_default_val = NV_GENERIC_FILTER_ID_MASK,
 	  .name_pattern = "nvidia_uncore_pmu_%u",
 	  .name_fmt = NAME_FMT_GENERIC,
-	  .event_attr = generic_pmu_event_attrs,
-	  .format_attr = generic_pmu_format_attrs
+	  .template_ctx = {
+		.event_attr = generic_pmu_event_attrs,
+		.format_attr = generic_pmu_format_attrs,
+		.filter_mask = NV_GENERIC_FILTER_ID_MASK,
+		.filter_default_val = NV_GENERIC_FILTER_ID_MASK,
+		.filter2_mask = NV_GENERIC_FILTER_ID_MASK,
+		.filter2_default_val = NV_GENERIC_FILTER_ID_MASK,
+		.get_filter = nv_cspmu_event_filter,
+		.get_filter2 = nv_cspmu_event_filter2,
+		.data = NULL,
+		.init_data = NULL
+	  },
 	},
 };
 
@@ -310,9 +391,16 @@ static char *nv_cspmu_format_name(const struct arm_cspmu *cspmu,
 	return name;
 }
 
+#define SET_OP(name, impl, match, default_op) \
+	do { \
+		if (match->ops.name) \
+			impl->name = match->ops.name; \
+		else if (default_op != NULL) \
+			impl->name = default_op; \
+	} while (false)
+
 static int nv_cspmu_init_ops(struct arm_cspmu *cspmu)
 {
-	u32 prodid;
 	struct nv_cspmu_ctx *ctx;
 	struct device *dev = cspmu->dev;
 	struct arm_cspmu_impl_ops *impl_ops = &cspmu->impl.ops;
@@ -322,30 +410,30 @@ static int nv_cspmu_init_ops(struct arm_cspmu *cspmu)
 	if (!ctx)
 		return -ENOMEM;
 
-	prodid = FIELD_GET(ARM_CSPMU_PMIIDR_PRODUCTID, cspmu->impl.pmiidr);
-
 	/* Find matching PMU. */
 	for (; match->prodid; match++) {
 		const u32 prodid_mask = match->prodid_mask;
 
-		if ((match->prodid & prodid_mask) == (prodid & prodid_mask))
+		if ((match->prodid & prodid_mask) ==
+		    (cspmu->impl.pmiidr & prodid_mask))
 			break;
 	}
 
-	ctx->name		= nv_cspmu_format_name(cspmu, match);
-	ctx->filter_mask	= match->filter_mask;
-	ctx->filter_default_val = match->filter_default_val;
-	ctx->event_attr		= match->event_attr;
-	ctx->format_attr	= match->format_attr;
+	/* Initialize the context with the matched template. */
+	memcpy(ctx, &match->template_ctx, sizeof(struct nv_cspmu_ctx));
+	ctx->name = nv_cspmu_format_name(cspmu, match);
 
 	cspmu->impl.ctx = ctx;
 
 	/* NVIDIA specific callbacks. */
-	impl_ops->set_cc_filter			= nv_cspmu_set_cc_filter;
-	impl_ops->set_ev_filter			= nv_cspmu_set_ev_filter;
-	impl_ops->get_event_attrs		= nv_cspmu_get_event_attrs;
-	impl_ops->get_format_attrs		= nv_cspmu_get_format_attrs;
-	impl_ops->get_name			= nv_cspmu_get_name;
+	SET_OP(set_cc_filter, impl_ops, match, nv_cspmu_set_cc_filter);
+	SET_OP(set_ev_filter, impl_ops, match, nv_cspmu_set_ev_filter);
+	SET_OP(get_event_attrs, impl_ops, match, nv_cspmu_get_event_attrs);
+	SET_OP(get_format_attrs, impl_ops, match, nv_cspmu_get_format_attrs);
+	SET_OP(get_name, impl_ops, match, nv_cspmu_get_name);
+
+	if (ctx->init_data)
+		return ctx->init_data(cspmu);
 
 	return 0;
 }

drivers/perf/arm_pmu.c

@@ -928,6 +928,12 @@ int armpmu_register(struct arm_pmu *pmu)
 	if (ret)
 		return ret;
 
+	/*
+	 * By this stage we know our supported CPUs on either DT/ACPI platforms,
+	 * detect the SMT implementation.
+	 */
+	pmu->has_smt = topology_core_has_smt(cpumask_first(&pmu->supported_cpus));
+
 	if (!pmu->set_event_filter)
 		pmu->pmu.capabilities |= PERF_PMU_CAP_NO_EXCLUDE;
 

drivers/perf/arm_pmuv3.c

@@ -981,6 +981,7 @@ static int armv8pmu_get_chain_idx(struct pmu_hw_events *cpuc,
 static bool armv8pmu_can_use_pmccntr(struct pmu_hw_events *cpuc,
 				     struct perf_event *event)
 {
+	struct arm_pmu *cpu_pmu = to_arm_pmu(event->pmu);
 	struct hw_perf_event *hwc = &event->hw;
 	unsigned long evtype = hwc->config_base & ARMV8_PMU_EVTYPE_EVENT;
 
@@ -1001,6 +1002,15 @@ static bool armv8pmu_can_use_pmccntr(struct pmu_hw_events *cpuc,
 	if (has_branch_stack(event))
 		return false;
 
+	/*
+	 * The PMCCNTR_EL0 increments from the processor clock rather than
+	 * the PE clock (ARM DDI0487 L.b D13.1.3) which means it'll continue
+	 * counting on a WFI PE if one of its SMT sibling is not idle on a
+	 * multi-threaded implementation. So don't use it on SMT cores.
+	 */
+	if (cpu_pmu->has_smt)
+		return false;
+
 	return true;
 }
 
@@ -1465,6 +1475,10 @@ static int name##_pmu_init(struct arm_pmu *cpu_pmu)			\
 
 PMUV3_INIT_SIMPLE(armv8_pmuv3)
 
+PMUV3_INIT_SIMPLE(armv8_c1_nano)
+PMUV3_INIT_SIMPLE(armv8_c1_premium)
+PMUV3_INIT_SIMPLE(armv8_c1_pro)
+PMUV3_INIT_SIMPLE(armv8_c1_ultra)
 PMUV3_INIT_SIMPLE(armv8_cortex_a34)
 PMUV3_INIT_SIMPLE(armv8_cortex_a55)
 PMUV3_INIT_SIMPLE(armv8_cortex_a65)
@@ -1472,11 +1486,14 @@ PMUV3_INIT_SIMPLE(armv8_cortex_a75)
 PMUV3_INIT_SIMPLE(armv8_cortex_a76)
 PMUV3_INIT_SIMPLE(armv8_cortex_a77)
 PMUV3_INIT_SIMPLE(armv8_cortex_a78)
+PMUV3_INIT_SIMPLE(armv9_cortex_a320)
 PMUV3_INIT_SIMPLE(armv9_cortex_a510)
 PMUV3_INIT_SIMPLE(armv9_cortex_a520)
+PMUV3_INIT_SIMPLE(armv9_cortex_a520ae)
 PMUV3_INIT_SIMPLE(armv9_cortex_a710)
 PMUV3_INIT_SIMPLE(armv9_cortex_a715)
 PMUV3_INIT_SIMPLE(armv9_cortex_a720)
+PMUV3_INIT_SIMPLE(armv9_cortex_a720ae)
 PMUV3_INIT_SIMPLE(armv9_cortex_a725)
 PMUV3_INIT_SIMPLE(armv8_cortex_x1)
 PMUV3_INIT_SIMPLE(armv9_cortex_x2)
@@ -1508,6 +1525,10 @@ PMUV3_INIT_MAP_EVENT(armv8_brcm_vulcan, armv8_vulcan_map_event)
 
 static const struct of_device_id armv8_pmu_of_device_ids[] = {
 	{.compatible = "arm,armv8-pmuv3",	.data = armv8_pmuv3_pmu_init},
+	{.compatible = "arm,c1-nano-pmu",	.data = armv8_c1_nano_pmu_init},
+	{.compatible = "arm,c1-premium-pmu",	.data = armv8_c1_premium_pmu_init},
+	{.compatible = "arm,c1-pro-pmu",	.data = armv8_c1_pro_pmu_init},
+	{.compatible = "arm,c1-ultra-pmu",	.data = armv8_c1_ultra_pmu_init},
 	{.compatible = "arm,cortex-a34-pmu",	.data = armv8_cortex_a34_pmu_init},
 	{.compatible = "arm,cortex-a35-pmu",	.data = armv8_cortex_a35_pmu_init},
 	{.compatible = "arm,cortex-a53-pmu",	.data = armv8_cortex_a53_pmu_init},
@@ -1520,11 +1541,14 @@ static const struct of_device_id armv8_pmu_of_device_ids[] = {
 	{.compatible = "arm,cortex-a76-pmu",	.data = armv8_cortex_a76_pmu_init},
 	{.compatible = "arm,cortex-a77-pmu",	.data = armv8_cortex_a77_pmu_init},
 	{.compatible = "arm,cortex-a78-pmu",	.data = armv8_cortex_a78_pmu_init},
+	{.compatible = "arm,cortex-a320-pmu",	.data = armv9_cortex_a320_pmu_init},
 	{.compatible = "arm,cortex-a510-pmu",	.data = armv9_cortex_a510_pmu_init},
 	{.compatible = "arm,cortex-a520-pmu",	.data = armv9_cortex_a520_pmu_init},
+	{.compatible = "arm,cortex-a520ae-pmu",	.data = armv9_cortex_a520ae_pmu_init},
 	{.compatible = "arm,cortex-a710-pmu",	.data = armv9_cortex_a710_pmu_init},
 	{.compatible = "arm,cortex-a715-pmu",	.data = armv9_cortex_a715_pmu_init},
 	{.compatible = "arm,cortex-a720-pmu",	.data = armv9_cortex_a720_pmu_init},
+	{.compatible = "arm,cortex-a720ae-pmu",	.data = armv9_cortex_a720ae_pmu_init},
 	{.compatible = "arm,cortex-a725-pmu",	.data = armv9_cortex_a725_pmu_init},
 	{.compatible = "arm,cortex-x1-pmu",	.data = armv8_cortex_x1_pmu_init},
 	{.compatible = "arm,cortex-x2-pmu",	.data = armv9_cortex_x2_pmu_init},

drivers/perf/arm_spe_pmu.c

@@ -87,6 +87,7 @@ struct arm_spe_pmu {
 #define SPE_PMU_FEAT_INV_FILT_EVT		(1UL << 6)
 #define SPE_PMU_FEAT_DISCARD			(1UL << 7)
 #define SPE_PMU_FEAT_EFT			(1UL << 8)
+#define SPE_PMU_FEAT_FDS			(1UL << 9)
 #define SPE_PMU_FEAT_DEV_PROBED			(1UL << 63)
 	u64					features;
 
@@ -252,6 +253,10 @@ static const struct attribute_group arm_spe_pmu_cap_group = {
 #define ATTR_CFG_FLD_inv_event_filter_LO	0
 #define ATTR_CFG_FLD_inv_event_filter_HI	63
 
+#define ATTR_CFG_FLD_inv_data_src_filter_CFG	config4	/* inverse of PMSDSFR_EL1 */
+#define ATTR_CFG_FLD_inv_data_src_filter_LO	0
+#define ATTR_CFG_FLD_inv_data_src_filter_HI	63
+
 GEN_PMU_FORMAT_ATTR(ts_enable);
 GEN_PMU_FORMAT_ATTR(pa_enable);
 GEN_PMU_FORMAT_ATTR(pct_enable);
@@ -268,6 +273,7 @@ GEN_PMU_FORMAT_ATTR(float_filter);
 GEN_PMU_FORMAT_ATTR(float_filter_mask);
 GEN_PMU_FORMAT_ATTR(event_filter);
 GEN_PMU_FORMAT_ATTR(inv_event_filter);
+GEN_PMU_FORMAT_ATTR(inv_data_src_filter);
 GEN_PMU_FORMAT_ATTR(min_latency);
 GEN_PMU_FORMAT_ATTR(discard);
 
@@ -288,6 +294,7 @@ static struct attribute *arm_spe_pmu_formats_attr[] = {
 	&format_attr_float_filter_mask.attr,
 	&format_attr_event_filter.attr,
 	&format_attr_inv_event_filter.attr,
+	&format_attr_inv_data_src_filter.attr,
 	&format_attr_min_latency.attr,
 	&format_attr_discard.attr,
 	NULL,
@@ -306,6 +313,10 @@ static umode_t arm_spe_pmu_format_attr_is_visible(struct kobject *kobj,
 	if (attr == &format_attr_inv_event_filter.attr && !(spe_pmu->features & SPE_PMU_FEAT_INV_FILT_EVT))
 		return 0;
 
+	if (attr == &format_attr_inv_data_src_filter.attr &&
+	    !(spe_pmu->features & SPE_PMU_FEAT_FDS))
+		return 0;
+
 	if ((attr == &format_attr_branch_filter_mask.attr ||
 	     attr == &format_attr_load_filter_mask.attr ||
 	     attr == &format_attr_store_filter_mask.attr ||
@@ -430,6 +441,9 @@ static u64 arm_spe_event_to_pmsfcr(struct perf_event *event)
 	if (ATTR_CFG_GET_FLD(attr, inv_event_filter))
 		reg |= PMSFCR_EL1_FnE;
 
+	if (ATTR_CFG_GET_FLD(attr, inv_data_src_filter))
+		reg |= PMSFCR_EL1_FDS;
+
 	if (ATTR_CFG_GET_FLD(attr, min_latency))
 		reg |= PMSFCR_EL1_FL;
 
@@ -454,6 +468,17 @@ static u64 arm_spe_event_to_pmslatfr(struct perf_event *event)
 	return FIELD_PREP(PMSLATFR_EL1_MINLAT, ATTR_CFG_GET_FLD(attr, min_latency));
 }
 
+static u64 arm_spe_event_to_pmsdsfr(struct perf_event *event)
+{
+	struct perf_event_attr *attr = &event->attr;
+
+	/*
+	 * Data src filter is inverted so that the default value of 0 is
+	 * equivalent to no filtering.
+	 */
+	return ~ATTR_CFG_GET_FLD(attr, inv_data_src_filter);
+}
+
 static void arm_spe_pmu_pad_buf(struct perf_output_handle *handle, int len)
 {
 	struct arm_spe_pmu_buf *buf = perf_get_aux(handle);
@@ -791,6 +816,10 @@ static int arm_spe_pmu_event_init(struct perf_event *event)
 	if (arm_spe_event_to_pmsnevfr(event) & spe_pmu->pmsevfr_res0)
 		return -EOPNOTSUPP;
 
+	if (arm_spe_event_to_pmsdsfr(event) != U64_MAX &&
+	    !(spe_pmu->features & SPE_PMU_FEAT_FDS))
+		return -EOPNOTSUPP;
+
 	if (attr->exclude_idle)
 		return -EOPNOTSUPP;
 
@@ -866,6 +895,11 @@ static void arm_spe_pmu_start(struct perf_event *event, int flags)
 		write_sysreg_s(reg, SYS_PMSNEVFR_EL1);
 	}
 
+	if (spe_pmu->features & SPE_PMU_FEAT_FDS) {
+		reg = arm_spe_event_to_pmsdsfr(event);
+		write_sysreg_s(reg, SYS_PMSDSFR_EL1);
+	}
+
 	reg = arm_spe_event_to_pmslatfr(event);
 	write_sysreg_s(reg, SYS_PMSLATFR_EL1);
 
@@ -1125,6 +1159,9 @@ static void __arm_spe_pmu_dev_probe(void *info)
 	if (FIELD_GET(PMSIDR_EL1_EFT, reg))
 		spe_pmu->features |= SPE_PMU_FEAT_EFT;
 
+	if (FIELD_GET(PMSIDR_EL1_FDS, reg))
+		spe_pmu->features |= SPE_PMU_FEAT_FDS;
+
 	/* This field has a spaced out encoding, so just use a look-up */
 	fld = FIELD_GET(PMSIDR_EL1_INTERVAL, reg);
 	switch (fld) {

drivers/perf/fsl_imx8_ddr_perf.c

@@ -5,6 +5,7 @@
  */
 
 #include <linux/bitfield.h>
+#include <linux/clk.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -52,18 +53,27 @@
 #define to_ddr_pmu(p)		container_of(p, struct ddr_pmu, pmu)
 
 #define DDR_PERF_DEV_NAME	"imx8_ddr"
+#define DB_PERF_DEV_NAME	"imx8_db"
 #define DDR_CPUHP_CB_NAME	DDR_PERF_DEV_NAME "_perf_pmu"
 
 static DEFINE_IDA(ddr_ida);
+static DEFINE_IDA(db_ida);
 
 /* DDR Perf hardware feature */
 #define DDR_CAP_AXI_ID_FILTER			0x1     /* support AXI ID filter */
 #define DDR_CAP_AXI_ID_FILTER_ENHANCED		0x3     /* support enhanced AXI ID filter */
 #define DDR_CAP_AXI_ID_PORT_CHANNEL_FILTER	0x4	/* support AXI ID PORT CHANNEL filter */
 
+/* Perf type */
+enum fsl_ddr_type {
+	DDR_PERF_TYPE = 0,	/* ddr Perf (default) */
+	DB_PERF_TYPE,		/* db Perf */
+};
+
 struct fsl_ddr_devtype_data {
 	unsigned int quirks;    /* quirks needed for different DDR Perf core */
 	const char *identifier;	/* system PMU identifier for userspace */
+	enum fsl_ddr_type type;	/* types of Perf, ddr or db */
 };
 
 static const struct fsl_ddr_devtype_data imx8_devtype_data;
@@ -97,6 +107,12 @@ static const struct fsl_ddr_devtype_data imx8dxl_devtype_data = {
 	.identifier = "i.MX8DXL",
 };
 
+static const struct fsl_ddr_devtype_data imx8dxl_db_devtype_data = {
+	.quirks = DDR_CAP_AXI_ID_PORT_CHANNEL_FILTER,
+	.identifier = "i.MX8DXL",
+	.type = DB_PERF_TYPE,
+};
+
 static const struct of_device_id imx_ddr_pmu_dt_ids[] = {
 	{ .compatible = "fsl,imx8-ddr-pmu", .data = &imx8_devtype_data},
 	{ .compatible = "fsl,imx8m-ddr-pmu", .data = &imx8m_devtype_data},
@@ -105,6 +121,7 @@ static const struct of_device_id imx_ddr_pmu_dt_ids[] = {
 	{ .compatible = "fsl,imx8mn-ddr-pmu", .data = &imx8mn_devtype_data},
 	{ .compatible = "fsl,imx8mp-ddr-pmu", .data = &imx8mp_devtype_data},
 	{ .compatible = "fsl,imx8dxl-ddr-pmu", .data = &imx8dxl_devtype_data},
+	{ .compatible = "fsl,imx8dxl-db-pmu", .data = &imx8dxl_db_devtype_data},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, imx_ddr_pmu_dt_ids);
@@ -284,9 +301,37 @@ static struct attribute *ddr_perf_events_attrs[] = {
 	NULL,
 };
 
+static const int ddr_perf_db_visible_event_list[] = {
+	EVENT_CYCLES_ID,
+	0x41,
+	0x42,
+};
+
+static umode_t ddr_perf_events_attrs_is_visible(struct kobject *kobj,
+						struct attribute *attr, int n)
+{
+	struct device *dev = kobj_to_dev(kobj);
+	struct ddr_pmu *pmu = dev_get_drvdata(dev);
+	struct perf_pmu_events_attr *pmu_attr;
+	unsigned int i;
+
+	pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr.attr);
+
+	if (pmu->devtype_data->type == DDR_PERF_TYPE)
+		return attr->mode;
+
+	/* DB Type */
+	for (i = 0; i < ARRAY_SIZE(ddr_perf_db_visible_event_list); i++)
+		if (pmu_attr->id == ddr_perf_db_visible_event_list[i])
+			return attr->mode;
+
+	return 0;
+}
+
 static const struct attribute_group ddr_perf_events_attr_group = {
 	.name = "events",
 	.attrs = ddr_perf_events_attrs,
+	.is_visible = ddr_perf_events_attrs_is_visible,
 };
 
 PMU_FORMAT_ATTR(event, "config:0-7");
@@ -645,8 +690,8 @@ static void ddr_perf_pmu_disable(struct pmu *pmu)
 {
 }
 
-static int ddr_perf_init(struct ddr_pmu *pmu, void __iomem *base,
-			 struct device *dev)
+static void ddr_perf_init(struct ddr_pmu *pmu, void __iomem *base,
+			  struct device *dev)
 {
 	*pmu = (struct ddr_pmu) {
 		.pmu = (struct pmu) {
@@ -667,9 +712,6 @@ static int ddr_perf_init(struct ddr_pmu *pmu, void __iomem *base,
 		.base = base,
 		.dev = dev,
 	};
-
-	pmu->id = ida_alloc(&ddr_ida, GFP_KERNEL);
-	return pmu->id;
 }
 
 static irqreturn_t ddr_perf_irq_handler(int irq, void *p)
@@ -735,10 +777,13 @@ static int ddr_perf_offline_cpu(unsigned int cpu, struct hlist_node *node)
 
 static int ddr_perf_probe(struct platform_device *pdev)
 {
+	struct clk_bulk_data *clks;
 	struct ddr_pmu *pmu;
 	struct device_node *np;
 	void __iomem *base;
+	struct ida *ida;
 	char *name;
+	int nclks;
 	int num;
 	int ret;
 	int irq;
@@ -753,19 +798,33 @@ static int ddr_perf_probe(struct platform_device *pdev)
 	if (!pmu)
 		return -ENOMEM;
 
-	num = ddr_perf_init(pmu, base, &pdev->dev);
+	ddr_perf_init(pmu, base, &pdev->dev);
 
 	platform_set_drvdata(pdev, pmu);
 
-	name = devm_kasprintf(&pdev->dev, GFP_KERNEL, DDR_PERF_DEV_NAME "%d",
-			      num);
-	if (!name) {
-		ret = -ENOMEM;
-		goto cpuhp_state_err;
-	}
+	nclks = devm_clk_bulk_get_all_enabled(&pdev->dev, &clks);
+	if (nclks < 0)
+		return dev_err_probe(&pdev->dev, nclks, "Failure get clks\n");
 
 	pmu->devtype_data = of_device_get_match_data(&pdev->dev);
 
+	ida = pmu->devtype_data->type == DDR_PERF_TYPE ? &ddr_ida : &db_ida;
+	num = ida_alloc(ida, GFP_KERNEL);
+	if (num < 0)
+		return num;
+
+	pmu->id = num;
+
+	if (pmu->devtype_data->type == DDR_PERF_TYPE)
+		name = devm_kasprintf(&pdev->dev, GFP_KERNEL, DDR_PERF_DEV_NAME "%d", num);
+	else
+		name = devm_kasprintf(&pdev->dev, GFP_KERNEL, DB_PERF_DEV_NAME "%d", num);
+
+	if (!name) {
+		ret = -ENOMEM;
+		goto idr_free;
+	}
+
 	pmu->cpu = raw_smp_processor_id();
 	ret = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
 				      DDR_CPUHP_CB_NAME,
@@ -774,7 +833,7 @@ static int ddr_perf_probe(struct platform_device *pdev)
 
 	if (ret < 0) {
 		dev_err(&pdev->dev, "cpuhp_setup_state_multi failed\n");
-		goto cpuhp_state_err;
+		goto idr_free;
 	}
 
 	pmu->cpuhp_state = ret;
@@ -821,8 +880,8 @@ ddr_perf_err:
 	cpuhp_state_remove_instance_nocalls(pmu->cpuhp_state, &pmu->node);
 cpuhp_instance_err:
 	cpuhp_remove_multi_state(pmu->cpuhp_state);
-cpuhp_state_err:
-	ida_free(&ddr_ida, pmu->id);
+idr_free:
+	ida_free(ida, pmu->id);
 	dev_warn(&pdev->dev, "i.MX8 DDR Perf PMU failed (%d), disabled\n", ret);
 	return ret;
 }
@@ -836,7 +895,11 @@ static void ddr_perf_remove(struct platform_device *pdev)
 
 	perf_pmu_unregister(&pmu->pmu);
 
-	ida_free(&ddr_ida, pmu->id);
+	if (pmu->devtype_data->type == DDR_PERF_TYPE)
+		ida_free(&ddr_ida, pmu->id);
+	else
+		ida_free(&db_ida, pmu->id);
+
 }
 
 static struct platform_driver imx_ddr_pmu_driver = {