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Subject[PATCH 22/49] perf/x86/intel/uncore: Add Alder Lake support
Date
From: Kan Liang <kan.liang@linux.intel.com>

The uncore subsystem for Alder Lake is similar to the previous Tiger
Lake.

The difference includes:
- New MSR addresses for global control, fixed counters, CBOX and ARB.
Add a new adl_uncore_msr_ops for uncore operations.
- Add a new threshold field for CBOX.
- New PCIIDs for IMC devices.

Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
---
arch/x86/events/intel/uncore.c | 7 ++
arch/x86/events/intel/uncore.h | 1 +
arch/x86/events/intel/uncore_snb.c | 131 +++++++++++++++++++++++++++++++++++++
3 files changed, 139 insertions(+)

diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c
index 33c8180..3ad5df2 100644
--- a/arch/x86/events/intel/uncore.c
+++ b/arch/x86/events/intel/uncore.c
@@ -1625,6 +1625,11 @@ static const struct intel_uncore_init_fun rkl_uncore_init __initconst = {
.pci_init = skl_uncore_pci_init,
};

+static const struct intel_uncore_init_fun adl_uncore_init __initconst = {
+ .cpu_init = adl_uncore_cpu_init,
+ .mmio_init = tgl_uncore_mmio_init,
+};
+
static const struct intel_uncore_init_fun icx_uncore_init __initconst = {
.cpu_init = icx_uncore_cpu_init,
.pci_init = icx_uncore_pci_init,
@@ -1673,6 +1678,8 @@ static const struct x86_cpu_id intel_uncore_match[] __initconst = {
X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE_L, &tgl_l_uncore_init),
X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE, &tgl_uncore_init),
X86_MATCH_INTEL_FAM6_MODEL(ROCKETLAKE, &rkl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE, &adl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L, &adl_uncore_init),
X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_D, &snr_uncore_init),
{},
};
diff --git a/arch/x86/events/intel/uncore.h b/arch/x86/events/intel/uncore.h
index a3c6e16..30e6557 100644
--- a/arch/x86/events/intel/uncore.h
+++ b/arch/x86/events/intel/uncore.h
@@ -567,6 +567,7 @@ void snb_uncore_cpu_init(void);
void nhm_uncore_cpu_init(void);
void skl_uncore_cpu_init(void);
void icl_uncore_cpu_init(void);
+void adl_uncore_cpu_init(void);
void tgl_uncore_cpu_init(void);
void tgl_uncore_mmio_init(void);
void tgl_l_uncore_mmio_init(void);
diff --git a/arch/x86/events/intel/uncore_snb.c b/arch/x86/events/intel/uncore_snb.c
index 5127128..0f63706 100644
--- a/arch/x86/events/intel/uncore_snb.c
+++ b/arch/x86/events/intel/uncore_snb.c
@@ -62,6 +62,8 @@
#define PCI_DEVICE_ID_INTEL_TGL_H_IMC 0x9a36
#define PCI_DEVICE_ID_INTEL_RKL_1_IMC 0x4c43
#define PCI_DEVICE_ID_INTEL_RKL_2_IMC 0x4c53
+#define PCI_DEVICE_ID_INTEL_ADL_1_IMC 0x4660
+#define PCI_DEVICE_ID_INTEL_ADL_2_IMC 0x4641

/* SNB event control */
#define SNB_UNC_CTL_EV_SEL_MASK 0x000000ff
@@ -131,12 +133,33 @@
#define ICL_UNC_ARB_PER_CTR 0x3b1
#define ICL_UNC_ARB_PERFEVTSEL 0x3b3

+/* ADL uncore global control */
+#define ADL_UNC_PERF_GLOBAL_CTL 0x2ff0
+#define ADL_UNC_FIXED_CTR_CTRL 0x2fde
+#define ADL_UNC_FIXED_CTR 0x2fdf
+
+/* ADL Cbo register */
+#define ADL_UNC_CBO_0_PER_CTR0 0x2002
+#define ADL_UNC_CBO_0_PERFEVTSEL0 0x2000
+#define ADL_UNC_CTL_THRESHOLD 0x3f000000
+#define ADL_UNC_RAW_EVENT_MASK (SNB_UNC_CTL_EV_SEL_MASK | \
+ SNB_UNC_CTL_UMASK_MASK | \
+ SNB_UNC_CTL_EDGE_DET | \
+ SNB_UNC_CTL_INVERT | \
+ ADL_UNC_CTL_THRESHOLD)
+
+/* ADL ARB register */
+#define ADL_UNC_ARB_PER_CTR0 0x2FD2
+#define ADL_UNC_ARB_PERFEVTSEL0 0x2FD0
+#define ADL_UNC_ARB_MSR_OFFSET 0x8
+
DEFINE_UNCORE_FORMAT_ATTR(event, event, "config:0-7");
DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15");
DEFINE_UNCORE_FORMAT_ATTR(edge, edge, "config:18");
DEFINE_UNCORE_FORMAT_ATTR(inv, inv, "config:23");
DEFINE_UNCORE_FORMAT_ATTR(cmask5, cmask, "config:24-28");
DEFINE_UNCORE_FORMAT_ATTR(cmask8, cmask, "config:24-31");
+DEFINE_UNCORE_FORMAT_ATTR(threshold, threshold, "config:24-29");

/* Sandy Bridge uncore support */
static void snb_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
@@ -422,6 +445,106 @@ void tgl_uncore_cpu_init(void)
skl_uncore_msr_ops.init_box = rkl_uncore_msr_init_box;
}

+static void adl_uncore_msr_init_box(struct intel_uncore_box *box)
+{
+ if (box->pmu->pmu_idx == 0)
+ wrmsrl(ADL_UNC_PERF_GLOBAL_CTL, SNB_UNC_GLOBAL_CTL_EN);
+}
+
+static void adl_uncore_msr_enable_box(struct intel_uncore_box *box)
+{
+ wrmsrl(ADL_UNC_PERF_GLOBAL_CTL, SNB_UNC_GLOBAL_CTL_EN);
+}
+
+static void adl_uncore_msr_disable_box(struct intel_uncore_box *box)
+{
+ if (box->pmu->pmu_idx == 0)
+ wrmsrl(ADL_UNC_PERF_GLOBAL_CTL, 0);
+}
+
+static void adl_uncore_msr_exit_box(struct intel_uncore_box *box)
+{
+ if (box->pmu->pmu_idx == 0)
+ wrmsrl(ADL_UNC_PERF_GLOBAL_CTL, 0);
+}
+
+static struct intel_uncore_ops adl_uncore_msr_ops = {
+ .init_box = adl_uncore_msr_init_box,
+ .enable_box = adl_uncore_msr_enable_box,
+ .disable_box = adl_uncore_msr_disable_box,
+ .exit_box = adl_uncore_msr_exit_box,
+ .disable_event = snb_uncore_msr_disable_event,
+ .enable_event = snb_uncore_msr_enable_event,
+ .read_counter = uncore_msr_read_counter,
+};
+
+static struct attribute *adl_uncore_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_threshold.attr,
+ NULL,
+};
+
+static const struct attribute_group adl_uncore_format_group = {
+ .name = "format",
+ .attrs = adl_uncore_formats_attr,
+};
+
+static struct intel_uncore_type adl_uncore_cbox = {
+ .name = "cbox",
+ .num_counters = 2,
+ .perf_ctr_bits = 44,
+ .perf_ctr = ADL_UNC_CBO_0_PER_CTR0,
+ .event_ctl = ADL_UNC_CBO_0_PERFEVTSEL0,
+ .event_mask = ADL_UNC_RAW_EVENT_MASK,
+ .msr_offset = ICL_UNC_CBO_MSR_OFFSET,
+ .ops = &adl_uncore_msr_ops,
+ .format_group = &adl_uncore_format_group,
+};
+
+static struct intel_uncore_type adl_uncore_arb = {
+ .name = "arb",
+ .num_counters = 2,
+ .num_boxes = 2,
+ .perf_ctr_bits = 44,
+ .perf_ctr = ADL_UNC_ARB_PER_CTR0,
+ .event_ctl = ADL_UNC_ARB_PERFEVTSEL0,
+ .event_mask = SNB_UNC_RAW_EVENT_MASK,
+ .msr_offset = ADL_UNC_ARB_MSR_OFFSET,
+ .constraints = snb_uncore_arb_constraints,
+ .ops = &adl_uncore_msr_ops,
+ .format_group = &snb_uncore_format_group,
+};
+
+static struct intel_uncore_type adl_uncore_clockbox = {
+ .name = "clock",
+ .num_counters = 1,
+ .num_boxes = 1,
+ .fixed_ctr_bits = 48,
+ .fixed_ctr = ADL_UNC_FIXED_CTR,
+ .fixed_ctl = ADL_UNC_FIXED_CTR_CTRL,
+ .single_fixed = 1,
+ .event_mask = SNB_UNC_CTL_EV_SEL_MASK,
+ .format_group = &icl_uncore_clock_format_group,
+ .ops = &adl_uncore_msr_ops,
+ .event_descs = icl_uncore_events,
+};
+
+static struct intel_uncore_type *adl_msr_uncores[] = {
+ &adl_uncore_cbox,
+ &adl_uncore_arb,
+ &adl_uncore_clockbox,
+ NULL,
+};
+
+void adl_uncore_cpu_init(void)
+{
+ adl_uncore_cbox.num_boxes = icl_get_cbox_num();
+ uncore_msr_uncores = adl_msr_uncores;
+}
+
enum {
SNB_PCI_UNCORE_IMC,
};
@@ -1203,6 +1326,14 @@ static const struct pci_device_id tgl_uncore_pci_ids[] = {
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TGL_H_IMC),
.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
},
+ { /* IMC */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ADL_1_IMC),
+ .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
+ },
+ { /* IMC */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ADL_2_IMC),
+ .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
+ },
{ /* end: all zeroes */ }
};

--
2.7.4
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