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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /arch/powerpc/perf/power7-pmu.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
Diffstat (limited to 'arch/powerpc/perf/power7-pmu.c')
-rw-r--r--arch/powerpc/perf/power7-pmu.c459
1 files changed, 459 insertions, 0 deletions
diff --git a/arch/powerpc/perf/power7-pmu.c b/arch/powerpc/perf/power7-pmu.c
new file mode 100644
index 000000000..c95ccf2e2
--- /dev/null
+++ b/arch/powerpc/perf/power7-pmu.c
@@ -0,0 +1,459 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Performance counter support for POWER7 processors.
+ *
+ * Copyright 2009 Paul Mackerras, IBM Corporation.
+ */
+#include <linux/kernel.h>
+#include <linux/perf_event.h>
+#include <linux/string.h>
+#include <asm/reg.h>
+#include <asm/cputable.h>
+
+#include "internal.h"
+
+/*
+ * Bits in event code for POWER7
+ */
+#define PM_PMC_SH 16 /* PMC number (1-based) for direct events */
+#define PM_PMC_MSK 0xf
+#define PM_PMC_MSKS (PM_PMC_MSK << PM_PMC_SH)
+#define PM_UNIT_SH 12 /* TTMMUX number and setting - unit select */
+#define PM_UNIT_MSK 0xf
+#define PM_COMBINE_SH 11 /* Combined event bit */
+#define PM_COMBINE_MSK 1
+#define PM_COMBINE_MSKS 0x800
+#define PM_L2SEL_SH 8 /* L2 event select */
+#define PM_L2SEL_MSK 7
+#define PM_PMCSEL_MSK 0xff
+
+/*
+ * Bits in MMCR1 for POWER7
+ */
+#define MMCR1_TTM0SEL_SH 60
+#define MMCR1_TTM1SEL_SH 56
+#define MMCR1_TTM2SEL_SH 52
+#define MMCR1_TTM3SEL_SH 48
+#define MMCR1_TTMSEL_MSK 0xf
+#define MMCR1_L2SEL_SH 45
+#define MMCR1_L2SEL_MSK 7
+#define MMCR1_PMC1_COMBINE_SH 35
+#define MMCR1_PMC2_COMBINE_SH 34
+#define MMCR1_PMC3_COMBINE_SH 33
+#define MMCR1_PMC4_COMBINE_SH 32
+#define MMCR1_PMC1SEL_SH 24
+#define MMCR1_PMC2SEL_SH 16
+#define MMCR1_PMC3SEL_SH 8
+#define MMCR1_PMC4SEL_SH 0
+#define MMCR1_PMCSEL_SH(n) (MMCR1_PMC1SEL_SH - (n) * 8)
+#define MMCR1_PMCSEL_MSK 0xff
+
+/*
+ * Power7 event codes.
+ */
+#define EVENT(_name, _code) \
+ _name = _code,
+
+enum {
+#include "power7-events-list.h"
+};
+#undef EVENT
+
+/*
+ * Layout of constraint bits:
+ * 6666555555555544444444443333333333222222222211111111110000000000
+ * 3210987654321098765432109876543210987654321098765432109876543210
+ * < >< ><><><><><><>
+ * L2 NC P6P5P4P3P2P1
+ *
+ * L2 - 16-18 - Required L2SEL value (select field)
+ *
+ * NC - number of counters
+ * 15: NC error 0x8000
+ * 12-14: number of events needing PMC1-4 0x7000
+ *
+ * P6
+ * 11: P6 error 0x800
+ * 10-11: Count of events needing PMC6
+ *
+ * P1..P5
+ * 0-9: Count of events needing PMC1..PMC5
+ */
+
+static int power7_get_constraint(u64 event, unsigned long *maskp,
+ unsigned long *valp, u64 event_config1 __maybe_unused)
+{
+ int pmc, sh, unit;
+ unsigned long mask = 0, value = 0;
+
+ pmc = (event >> PM_PMC_SH) & PM_PMC_MSK;
+ if (pmc) {
+ if (pmc > 6)
+ return -1;
+ sh = (pmc - 1) * 2;
+ mask |= 2 << sh;
+ value |= 1 << sh;
+ if (pmc >= 5 && !(event == 0x500fa || event == 0x600f4))
+ return -1;
+ }
+ if (pmc < 5) {
+ /* need a counter from PMC1-4 set */
+ mask |= 0x8000;
+ value |= 0x1000;
+ }
+
+ unit = (event >> PM_UNIT_SH) & PM_UNIT_MSK;
+ if (unit == 6) {
+ /* L2SEL must be identical across events */
+ int l2sel = (event >> PM_L2SEL_SH) & PM_L2SEL_MSK;
+ mask |= 0x7 << 16;
+ value |= l2sel << 16;
+ }
+
+ *maskp = mask;
+ *valp = value;
+ return 0;
+}
+
+#define MAX_ALT 2 /* at most 2 alternatives for any event */
+
+static const unsigned int event_alternatives[][MAX_ALT] = {
+ { 0x200f2, 0x300f2 }, /* PM_INST_DISP */
+ { 0x200f4, 0x600f4 }, /* PM_RUN_CYC */
+ { 0x400fa, 0x500fa }, /* PM_RUN_INST_CMPL */
+};
+
+/*
+ * Scan the alternatives table for a match and return the
+ * index into the alternatives table if found, else -1.
+ */
+static int find_alternative(u64 event)
+{
+ int i, j;
+
+ for (i = 0; i < ARRAY_SIZE(event_alternatives); ++i) {
+ if (event < event_alternatives[i][0])
+ break;
+ for (j = 0; j < MAX_ALT && event_alternatives[i][j]; ++j)
+ if (event == event_alternatives[i][j])
+ return i;
+ }
+ return -1;
+}
+
+static s64 find_alternative_decode(u64 event)
+{
+ int pmc, psel;
+
+ /* this only handles the 4x decode events */
+ pmc = (event >> PM_PMC_SH) & PM_PMC_MSK;
+ psel = event & PM_PMCSEL_MSK;
+ if ((pmc == 2 || pmc == 4) && (psel & ~7) == 0x40)
+ return event - (1 << PM_PMC_SH) + 8;
+ if ((pmc == 1 || pmc == 3) && (psel & ~7) == 0x48)
+ return event + (1 << PM_PMC_SH) - 8;
+ return -1;
+}
+
+static int power7_get_alternatives(u64 event, unsigned int flags, u64 alt[])
+{
+ int i, j, nalt = 1;
+ s64 ae;
+
+ alt[0] = event;
+ nalt = 1;
+ i = find_alternative(event);
+ if (i >= 0) {
+ for (j = 0; j < MAX_ALT; ++j) {
+ ae = event_alternatives[i][j];
+ if (ae && ae != event)
+ alt[nalt++] = ae;
+ }
+ } else {
+ ae = find_alternative_decode(event);
+ if (ae > 0)
+ alt[nalt++] = ae;
+ }
+
+ if (flags & PPMU_ONLY_COUNT_RUN) {
+ /*
+ * We're only counting in RUN state,
+ * so PM_CYC is equivalent to PM_RUN_CYC
+ * and PM_INST_CMPL === PM_RUN_INST_CMPL.
+ * This doesn't include alternatives that don't provide
+ * any extra flexibility in assigning PMCs.
+ */
+ j = nalt;
+ for (i = 0; i < nalt; ++i) {
+ switch (alt[i]) {
+ case 0x1e: /* PM_CYC */
+ alt[j++] = 0x600f4; /* PM_RUN_CYC */
+ break;
+ case 0x600f4: /* PM_RUN_CYC */
+ alt[j++] = 0x1e;
+ break;
+ case 0x2: /* PM_PPC_CMPL */
+ alt[j++] = 0x500fa; /* PM_RUN_INST_CMPL */
+ break;
+ case 0x500fa: /* PM_RUN_INST_CMPL */
+ alt[j++] = 0x2; /* PM_PPC_CMPL */
+ break;
+ }
+ }
+ nalt = j;
+ }
+
+ return nalt;
+}
+
+/*
+ * Returns 1 if event counts things relating to marked instructions
+ * and thus needs the MMCRA_SAMPLE_ENABLE bit set, or 0 if not.
+ */
+static int power7_marked_instr_event(u64 event)
+{
+ int pmc, psel;
+ int unit;
+
+ pmc = (event >> PM_PMC_SH) & PM_PMC_MSK;
+ unit = (event >> PM_UNIT_SH) & PM_UNIT_MSK;
+ psel = event & PM_PMCSEL_MSK & ~1; /* trim off edge/level bit */
+ if (pmc >= 5)
+ return 0;
+
+ switch (psel >> 4) {
+ case 2:
+ return pmc == 2 || pmc == 4;
+ case 3:
+ if (psel == 0x3c)
+ return pmc == 1;
+ if (psel == 0x3e)
+ return pmc != 2;
+ return 1;
+ case 4:
+ case 5:
+ return unit == 0xd;
+ case 6:
+ if (psel == 0x64)
+ return pmc >= 3;
+ break;
+ case 8:
+ return unit == 0xd;
+ }
+ return 0;
+}
+
+static int power7_compute_mmcr(u64 event[], int n_ev,
+ unsigned int hwc[], struct mmcr_regs *mmcr,
+ struct perf_event *pevents[],
+ u32 flags __maybe_unused)
+{
+ unsigned long mmcr1 = 0;
+ unsigned long mmcra = MMCRA_SDAR_DCACHE_MISS | MMCRA_SDAR_ERAT_MISS;
+ unsigned int pmc, unit, combine, l2sel, psel;
+ unsigned int pmc_inuse = 0;
+ int i;
+
+ /* First pass to count resource use */
+ for (i = 0; i < n_ev; ++i) {
+ pmc = (event[i] >> PM_PMC_SH) & PM_PMC_MSK;
+ if (pmc) {
+ if (pmc > 6)
+ return -1;
+ if (pmc_inuse & (1 << (pmc - 1)))
+ return -1;
+ pmc_inuse |= 1 << (pmc - 1);
+ }
+ }
+
+ /* Second pass: assign PMCs, set all MMCR1 fields */
+ for (i = 0; i < n_ev; ++i) {
+ pmc = (event[i] >> PM_PMC_SH) & PM_PMC_MSK;
+ unit = (event[i] >> PM_UNIT_SH) & PM_UNIT_MSK;
+ combine = (event[i] >> PM_COMBINE_SH) & PM_COMBINE_MSK;
+ l2sel = (event[i] >> PM_L2SEL_SH) & PM_L2SEL_MSK;
+ psel = event[i] & PM_PMCSEL_MSK;
+ if (!pmc) {
+ /* Bus event or any-PMC direct event */
+ for (pmc = 0; pmc < 4; ++pmc) {
+ if (!(pmc_inuse & (1 << pmc)))
+ break;
+ }
+ if (pmc >= 4)
+ return -1;
+ pmc_inuse |= 1 << pmc;
+ } else {
+ /* Direct or decoded event */
+ --pmc;
+ }
+ if (pmc <= 3) {
+ mmcr1 |= (unsigned long) unit
+ << (MMCR1_TTM0SEL_SH - 4 * pmc);
+ mmcr1 |= (unsigned long) combine
+ << (MMCR1_PMC1_COMBINE_SH - pmc);
+ mmcr1 |= psel << MMCR1_PMCSEL_SH(pmc);
+ if (unit == 6) /* L2 events */
+ mmcr1 |= (unsigned long) l2sel
+ << MMCR1_L2SEL_SH;
+ }
+ if (power7_marked_instr_event(event[i]))
+ mmcra |= MMCRA_SAMPLE_ENABLE;
+ hwc[i] = pmc;
+ }
+
+ /* Return MMCRx values */
+ mmcr->mmcr0 = 0;
+ if (pmc_inuse & 1)
+ mmcr->mmcr0 = MMCR0_PMC1CE;
+ if (pmc_inuse & 0x3e)
+ mmcr->mmcr0 |= MMCR0_PMCjCE;
+ mmcr->mmcr1 = mmcr1;
+ mmcr->mmcra = mmcra;
+ return 0;
+}
+
+static void power7_disable_pmc(unsigned int pmc, struct mmcr_regs *mmcr)
+{
+ if (pmc <= 3)
+ mmcr->mmcr1 &= ~(0xffUL << MMCR1_PMCSEL_SH(pmc));
+}
+
+static int power7_generic_events[] = {
+ [PERF_COUNT_HW_CPU_CYCLES] = PM_CYC,
+ [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = PM_GCT_NOSLOT_CYC,
+ [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = PM_CMPLU_STALL,
+ [PERF_COUNT_HW_INSTRUCTIONS] = PM_INST_CMPL,
+ [PERF_COUNT_HW_CACHE_REFERENCES] = PM_LD_REF_L1,
+ [PERF_COUNT_HW_CACHE_MISSES] = PM_LD_MISS_L1,
+ [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = PM_BRU_FIN,
+ [PERF_COUNT_HW_BRANCH_MISSES] = PM_BR_MPRED,
+};
+
+#define C(x) PERF_COUNT_HW_CACHE_##x
+
+/*
+ * Table of generalized cache-related events.
+ * 0 means not supported, -1 means nonsensical, other values
+ * are event codes.
+ */
+static u64 power7_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
+ [C(L1D)] = { /* RESULT_ACCESS RESULT_MISS */
+ [C(OP_READ)] = { 0xc880, 0x400f0 },
+ [C(OP_WRITE)] = { 0, 0x300f0 },
+ [C(OP_PREFETCH)] = { 0xd8b8, 0 },
+ },
+ [C(L1I)] = { /* RESULT_ACCESS RESULT_MISS */
+ [C(OP_READ)] = { 0, 0x200fc },
+ [C(OP_WRITE)] = { -1, -1 },
+ [C(OP_PREFETCH)] = { 0x408a, 0 },
+ },
+ [C(LL)] = { /* RESULT_ACCESS RESULT_MISS */
+ [C(OP_READ)] = { 0x16080, 0x26080 },
+ [C(OP_WRITE)] = { 0x16082, 0x26082 },
+ [C(OP_PREFETCH)] = { 0, 0 },
+ },
+ [C(DTLB)] = { /* RESULT_ACCESS RESULT_MISS */
+ [C(OP_READ)] = { 0, 0x300fc },
+ [C(OP_WRITE)] = { -1, -1 },
+ [C(OP_PREFETCH)] = { -1, -1 },
+ },
+ [C(ITLB)] = { /* RESULT_ACCESS RESULT_MISS */
+ [C(OP_READ)] = { 0, 0x400fc },
+ [C(OP_WRITE)] = { -1, -1 },
+ [C(OP_PREFETCH)] = { -1, -1 },
+ },
+ [C(BPU)] = { /* RESULT_ACCESS RESULT_MISS */
+ [C(OP_READ)] = { 0x10068, 0x400f6 },
+ [C(OP_WRITE)] = { -1, -1 },
+ [C(OP_PREFETCH)] = { -1, -1 },
+ },
+ [C(NODE)] = { /* RESULT_ACCESS RESULT_MISS */
+ [C(OP_READ)] = { -1, -1 },
+ [C(OP_WRITE)] = { -1, -1 },
+ [C(OP_PREFETCH)] = { -1, -1 },
+ },
+};
+
+
+GENERIC_EVENT_ATTR(cpu-cycles, PM_CYC);
+GENERIC_EVENT_ATTR(stalled-cycles-frontend, PM_GCT_NOSLOT_CYC);
+GENERIC_EVENT_ATTR(stalled-cycles-backend, PM_CMPLU_STALL);
+GENERIC_EVENT_ATTR(instructions, PM_INST_CMPL);
+GENERIC_EVENT_ATTR(cache-references, PM_LD_REF_L1);
+GENERIC_EVENT_ATTR(cache-misses, PM_LD_MISS_L1);
+GENERIC_EVENT_ATTR(branch-instructions, PM_BRU_FIN);
+GENERIC_EVENT_ATTR(branch-misses, PM_BR_MPRED);
+
+#define EVENT(_name, _code) POWER_EVENT_ATTR(_name, _name);
+#include "power7-events-list.h"
+#undef EVENT
+
+#define EVENT(_name, _code) POWER_EVENT_PTR(_name),
+
+static struct attribute *power7_events_attr[] = {
+ GENERIC_EVENT_PTR(PM_CYC),
+ GENERIC_EVENT_PTR(PM_GCT_NOSLOT_CYC),
+ GENERIC_EVENT_PTR(PM_CMPLU_STALL),
+ GENERIC_EVENT_PTR(PM_INST_CMPL),
+ GENERIC_EVENT_PTR(PM_LD_REF_L1),
+ GENERIC_EVENT_PTR(PM_LD_MISS_L1),
+ GENERIC_EVENT_PTR(PM_BRU_FIN),
+ GENERIC_EVENT_PTR(PM_BR_MPRED),
+
+ #include "power7-events-list.h"
+ #undef EVENT
+ NULL
+};
+
+static const struct attribute_group power7_pmu_events_group = {
+ .name = "events",
+ .attrs = power7_events_attr,
+};
+
+PMU_FORMAT_ATTR(event, "config:0-19");
+
+static struct attribute *power7_pmu_format_attr[] = {
+ &format_attr_event.attr,
+ NULL,
+};
+
+static const struct attribute_group power7_pmu_format_group = {
+ .name = "format",
+ .attrs = power7_pmu_format_attr,
+};
+
+static const struct attribute_group *power7_pmu_attr_groups[] = {
+ &power7_pmu_format_group,
+ &power7_pmu_events_group,
+ NULL,
+};
+
+static struct power_pmu power7_pmu = {
+ .name = "POWER7",
+ .n_counter = 6,
+ .max_alternatives = MAX_ALT + 1,
+ .add_fields = 0x1555ul,
+ .test_adder = 0x3000ul,
+ .compute_mmcr = power7_compute_mmcr,
+ .get_constraint = power7_get_constraint,
+ .get_alternatives = power7_get_alternatives,
+ .disable_pmc = power7_disable_pmc,
+ .flags = PPMU_ALT_SIPR,
+ .attr_groups = power7_pmu_attr_groups,
+ .n_generic = ARRAY_SIZE(power7_generic_events),
+ .generic_events = power7_generic_events,
+ .cache_events = &power7_cache_events,
+};
+
+int __init init_power7_pmu(void)
+{
+ unsigned int pvr = mfspr(SPRN_PVR);
+
+ if (PVR_VER(pvr) != PVR_POWER7 && PVR_VER(pvr) != PVR_POWER7p)
+ return -ENODEV;
+
+ if (PVR_VER(pvr) == PVR_POWER7p)
+ power7_pmu.flags |= PPMU_SIAR_VALID;
+
+ return register_power_pmu(&power7_pmu);
+}