perf/x86/intel/uncore: Add Broadwell-DE uncore support

The uncore subsystem for Broadwell-DE is similar to Haswell-EP.  There
are some differences in pci device IDs, box number and constraints.

Please refer to the public document:

  http://www.intel.com/content/www/us/en/processors/xeon/xeon-d-1500-uncore-performance-monitoring.html

Signed-off-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: eranian@google.com
Link: http://lkml.kernel.org/r/1435839172-15114-1-git-send-email-kan.liang@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index c2af967..560e525 100644 (file)
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -911,6 +911,9 @@ static int __init uncore_pci_init(void)
        case 63: /* Haswell-EP */
                ret = hswep_uncore_pci_init();
                break;
+       case 86: /* BDX-DE */
+               ret = bdx_uncore_pci_init();
+               break;
        case 42: /* Sandy Bridge */
                ret = snb_uncore_pci_init();
                break;
@@ -1229,6 +1232,9 @@ static int __init uncore_cpu_init(void)
        case 63: /* Haswell-EP */
                hswep_uncore_cpu_init();
                break;
+       case 86: /* BDX-DE */
+               bdx_uncore_cpu_init();
+               break;
        default:
                return 0;
        }

diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
index 0f77f0a..72c54c2 100644 (file)
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
@@ -336,6 +336,8 @@ int ivbep_uncore_pci_init(void);
 void ivbep_uncore_cpu_init(void);
 int hswep_uncore_pci_init(void);
 void hswep_uncore_cpu_init(void);
+int bdx_uncore_pci_init(void);
+void bdx_uncore_cpu_init(void);
 
 /* perf_event_intel_uncore_nhmex.c */
 void nhmex_uncore_cpu_init(void);

diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c b/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c
index 76a3feb..694510a 100644 (file)
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c
@@ -2321,3 +2321,167 @@ int hswep_uncore_pci_init(void)
        return 0;
 }
 /* end of Haswell-EP uncore support */
+
+/* BDX-DE uncore support */
+
+static struct intel_uncore_type bdx_uncore_ubox = {
+       .name                   = "ubox",
+       .num_counters           = 2,
+       .num_boxes              = 1,
+       .perf_ctr_bits          = 48,
+       .fixed_ctr_bits         = 48,
+       .perf_ctr               = HSWEP_U_MSR_PMON_CTR0,
+       .event_ctl              = HSWEP_U_MSR_PMON_CTL0,
+       .event_mask             = SNBEP_U_MSR_PMON_RAW_EVENT_MASK,
+       .fixed_ctr              = HSWEP_U_MSR_PMON_UCLK_FIXED_CTR,
+       .fixed_ctl              = HSWEP_U_MSR_PMON_UCLK_FIXED_CTL,
+       .num_shared_regs        = 1,
+       .ops                    = &ivbep_uncore_msr_ops,
+       .format_group           = &ivbep_uncore_ubox_format_group,
+};
+
+static struct event_constraint bdx_uncore_cbox_constraints[] = {
+       UNCORE_EVENT_CONSTRAINT(0x09, 0x3),
+       UNCORE_EVENT_CONSTRAINT(0x11, 0x1),
+       UNCORE_EVENT_CONSTRAINT(0x36, 0x1),
+       EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type bdx_uncore_cbox = {
+       .name                   = "cbox",
+       .num_counters           = 4,
+       .num_boxes              = 8,
+       .perf_ctr_bits          = 48,
+       .event_ctl              = HSWEP_C0_MSR_PMON_CTL0,
+       .perf_ctr               = HSWEP_C0_MSR_PMON_CTR0,
+       .event_mask             = SNBEP_CBO_MSR_PMON_RAW_EVENT_MASK,
+       .box_ctl                = HSWEP_C0_MSR_PMON_BOX_CTL,
+       .msr_offset             = HSWEP_CBO_MSR_OFFSET,
+       .num_shared_regs        = 1,
+       .constraints            = bdx_uncore_cbox_constraints,
+       .ops                    = &hswep_uncore_cbox_ops,
+       .format_group           = &hswep_uncore_cbox_format_group,
+};
+
+static struct intel_uncore_type *bdx_msr_uncores[] = {
+       &bdx_uncore_ubox,
+       &bdx_uncore_cbox,
+       &hswep_uncore_pcu,
+       NULL,
+};
+
+void bdx_uncore_cpu_init(void)
+{
+       if (bdx_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
+               bdx_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
+       uncore_msr_uncores = bdx_msr_uncores;
+}
+
+static struct intel_uncore_type bdx_uncore_ha = {
+       .name           = "ha",
+       .num_counters   = 4,
+       .num_boxes      = 1,
+       .perf_ctr_bits  = 48,
+       SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct intel_uncore_type bdx_uncore_imc = {
+       .name           = "imc",
+       .num_counters   = 5,
+       .num_boxes      = 2,
+       .perf_ctr_bits  = 48,
+       .fixed_ctr_bits = 48,
+       .fixed_ctr      = SNBEP_MC_CHy_PCI_PMON_FIXED_CTR,
+       .fixed_ctl      = SNBEP_MC_CHy_PCI_PMON_FIXED_CTL,
+       .event_descs    = hswep_uncore_imc_events,
+       SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct intel_uncore_type bdx_uncore_irp = {
+       .name                   = "irp",
+       .num_counters           = 4,
+       .num_boxes              = 1,
+       .perf_ctr_bits          = 48,
+       .event_mask             = SNBEP_PMON_RAW_EVENT_MASK,
+       .box_ctl                = SNBEP_PCI_PMON_BOX_CTL,
+       .ops                    = &hswep_uncore_irp_ops,
+       .format_group           = &snbep_uncore_format_group,
+};
+
+
+static struct event_constraint bdx_uncore_r2pcie_constraints[] = {
+       UNCORE_EVENT_CONSTRAINT(0x10, 0x3),
+       UNCORE_EVENT_CONSTRAINT(0x11, 0x3),
+       UNCORE_EVENT_CONSTRAINT(0x13, 0x1),
+       UNCORE_EVENT_CONSTRAINT(0x23, 0x1),
+       UNCORE_EVENT_CONSTRAINT(0x25, 0x1),
+       UNCORE_EVENT_CONSTRAINT(0x26, 0x3),
+       UNCORE_EVENT_CONSTRAINT(0x2d, 0x3),
+       EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type bdx_uncore_r2pcie = {
+       .name           = "r2pcie",
+       .num_counters   = 4,
+       .num_boxes      = 1,
+       .perf_ctr_bits  = 48,
+       .constraints    = bdx_uncore_r2pcie_constraints,
+       SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+enum {
+       BDX_PCI_UNCORE_HA,
+       BDX_PCI_UNCORE_IMC,
+       BDX_PCI_UNCORE_IRP,
+       BDX_PCI_UNCORE_R2PCIE,
+};
+
+static struct intel_uncore_type *bdx_pci_uncores[] = {
+       [BDX_PCI_UNCORE_HA]     = &bdx_uncore_ha,
+       [BDX_PCI_UNCORE_IMC]    = &bdx_uncore_imc,
+       [BDX_PCI_UNCORE_IRP]    = &bdx_uncore_irp,
+       [BDX_PCI_UNCORE_R2PCIE] = &bdx_uncore_r2pcie,
+       NULL,
+};
+
+static DEFINE_PCI_DEVICE_TABLE(bdx_uncore_pci_ids) = {
+       { /* Home Agent 0 */
+               PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6f30),
+               .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_HA, 0),
+       },
+       { /* MC0 Channel 0 */
+               PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6fb0),
+               .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_IMC, 0),
+       },
+       { /* MC0 Channel 1 */
+               PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6fb1),
+               .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_IMC, 1),
+       },
+       { /* IRP */
+               PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6f39),
+               .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_IRP, 0),
+       },
+       { /* R2PCIe */
+               PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6f34),
+               .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_R2PCIE, 0),
+       },
+       { /* end: all zeroes */ }
+};
+
+static struct pci_driver bdx_uncore_pci_driver = {
+       .name           = "bdx_uncore",
+       .id_table       = bdx_uncore_pci_ids,
+};
+
+int bdx_uncore_pci_init(void)
+{
+       int ret = snbep_pci2phy_map_init(0x6f1e);
+
+       if (ret)
+               return ret;
+       uncore_pci_uncores = bdx_pci_uncores;
+       uncore_pci_driver = &bdx_uncore_pci_driver;
+       return 0;
+}
+
+/* end of BDX-DE uncore support */