Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934412AbcJ2L4G (ORCPT ); Sat, 29 Oct 2016 07:56:06 -0400 Received: from mail-wm0-f66.google.com ([74.125.82.66]:36708 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754355AbcJ2Lzz (ORCPT ); Sat, 29 Oct 2016 07:55:55 -0400 From: Jan Glauber To: Mark Rutland , Will Deacon Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Jan Glauber Subject: [PATCH v4 2/5] arm64: perf: Cavium ThunderX L2C TAD uncore support Date: Sat, 29 Oct 2016 13:55:30 +0200 Message-Id: <4ca15d0c3911412dbf21aa7173631500a15e13e2.1477741719.git.jglauber@cavium.com> X-Mailer: git-send-email 2.9.0.rc0.21.g7777322 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 16421 Lines: 427 Support counters of the L2 Cache tag and data units. Signed-off-by: Jan Glauber --- drivers/perf/uncore/Makefile | 3 +- drivers/perf/uncore/uncore_cavium.c | 1 + drivers/perf/uncore/uncore_cavium.h | 1 + drivers/perf/uncore/uncore_cavium_l2c_tad.c | 379 ++++++++++++++++++++++++++++ 4 files changed, 383 insertions(+), 1 deletion(-) create mode 100644 drivers/perf/uncore/uncore_cavium_l2c_tad.c diff --git a/drivers/perf/uncore/Makefile b/drivers/perf/uncore/Makefile index 6130e18..90850a2 100644 --- a/drivers/perf/uncore/Makefile +++ b/drivers/perf/uncore/Makefile @@ -1 +1,2 @@ -obj-$(CONFIG_UNCORE_PMU_CAVIUM) += uncore_cavium.o +obj-$(CONFIG_UNCORE_PMU_CAVIUM) += uncore_cavium.o \ + uncore_cavium_l2c_tad.o diff --git a/drivers/perf/uncore/uncore_cavium.c b/drivers/perf/uncore/uncore_cavium.c index a7b4277..15e1aec 100644 --- a/drivers/perf/uncore/uncore_cavium.c +++ b/drivers/perf/uncore/uncore_cavium.c @@ -346,6 +346,7 @@ static int __init thunder_uncore_init(void) if (ret) return ret; + thunder_uncore_l2c_tad_setup(); return 0; } late_initcall(thunder_uncore_init); diff --git a/drivers/perf/uncore/uncore_cavium.h b/drivers/perf/uncore/uncore_cavium.h index b5d64b5..70a8214 100644 --- a/drivers/perf/uncore/uncore_cavium.h +++ b/drivers/perf/uncore/uncore_cavium.h @@ -69,3 +69,4 @@ int thunder_uncore_setup(struct thunder_uncore *uncore, int id, ssize_t thunder_events_sysfs_show(struct device *dev, struct device_attribute *attr, char *page); +int thunder_uncore_l2c_tad_setup(void); diff --git a/drivers/perf/uncore/uncore_cavium_l2c_tad.c b/drivers/perf/uncore/uncore_cavium_l2c_tad.c new file mode 100644 index 0000000..b97ba33 --- /dev/null +++ b/drivers/perf/uncore/uncore_cavium_l2c_tad.c @@ -0,0 +1,379 @@ +/* + * Cavium Thunder uncore PMU support, + * L2 Cache tag-and-data-units (L2C TAD) counters. + * + * Copyright 2016 Cavium Inc. + * Author: Jan Glauber + */ + +#include +#include + +#include "uncore_cavium.h" + +struct thunder_uncore *thunder_uncore_l2c_tad; + +#define L2C_TAD_NR_COUNTERS 4 +#define L2C_TAD_PRF_OFFSET 0x10000 +#define L2C_TAD_PFC_OFFSET 0x10100 + +/* + * Counters are selected via L2C_TAD(x)_PRF: + * + * 63 32 + * +---------------------------------------+ + * | Reserved | + * +---------------------------------------+ + * | CNT3SEL | CNT2SEL | CNT1SEL | CNT0SEL | + * +---------------------------------------+ + * 31 24 16 8 0 + * + * config_base contains the offset of the selected CNTxSEL in the mapped BAR. + * + * Counters are read via L2C_TAD(x)_PFC(0..3). + * event_base contains the associated address to read the counter. + */ + +/* L2C TAD event list */ +#define L2C_TAD_EVENTS_DISABLED 0x00 +#define L2C_TAD_EVENT_L2T_HIT 0x01 +#define L2C_TAD_EVENT_L2T_MISS 0x02 +#define L2C_TAD_EVENT_L2T_NOALLOC 0x03 +#define L2C_TAD_EVENT_L2_VIC 0x04 +#define L2C_TAD_EVENT_SC_FAIL 0x05 +#define L2C_TAD_EVENT_SC_PASS 0x06 +#define L2C_TAD_EVENT_LFB_OCC 0x07 +#define L2C_TAD_EVENT_WAIT_LFB 0x08 +#define L2C_TAD_EVENT_WAIT_VAB 0x09 +#define L2C_TAD_EVENT_OPEN_CCPI 0x0a +#define L2C_TAD_EVENT_LOOKUP 0x40 +#define L2C_TAD_EVENT_LOOKUP_XMC_LCL 0x41 +#define L2C_TAD_EVENT_LOOKUP_XMC_RMT 0x42 +#define L2C_TAD_EVENT_LOOKUP_MIB 0x43 +#define L2C_TAD_EVENT_LOOKUP_ALL 0x44 +#define L2C_TAD_EVENT_TAG_ALC_HIT 0x48 +#define L2C_TAD_EVENT_TAG_ALC_MISS 0x49 +#define L2C_TAD_EVENT_TAG_ALC_NALC 0x4a +#define L2C_TAD_EVENT_TAG_NALC_HIT 0x4b +#define L2C_TAD_EVENT_TAG_NALC_MISS 0x4c +#define L2C_TAD_EVENT_LMC_WR 0x4e +#define L2C_TAD_EVENT_LMC_SBLKDTY 0x4f +#define L2C_TAD_EVENT_TAG_ALC_RTG_HIT 0x50 +#define L2C_TAD_EVENT_TAG_ALC_RTG_HITE 0x51 +#define L2C_TAD_EVENT_TAG_ALC_RTG_HITS 0x52 +#define L2C_TAD_EVENT_TAG_ALC_RTG_MISS 0x53 +#define L2C_TAD_EVENT_TAG_NALC_RTG_HIT 0x54 +#define L2C_TAD_EVENT_TAG_NALC_RTG_MISS 0x55 +#define L2C_TAD_EVENT_TAG_NALC_RTG_HITE 0x56 +#define L2C_TAD_EVENT_TAG_NALC_RTG_HITS 0x57 +#define L2C_TAD_EVENT_TAG_ALC_LCL_EVICT 0x58 +#define L2C_TAD_EVENT_TAG_ALC_LCL_CLNVIC 0x59 +#define L2C_TAD_EVENT_TAG_ALC_LCL_DTYVIC 0x5a +#define L2C_TAD_EVENT_TAG_ALC_RMT_EVICT 0x5b +#define L2C_TAD_EVENT_TAG_ALC_RMT_VIC 0x5c +#define L2C_TAD_EVENT_RTG_ALC 0x5d +#define L2C_TAD_EVENT_RTG_ALC_HIT 0x5e +#define L2C_TAD_EVENT_RTG_ALC_HITWB 0x5f +#define L2C_TAD_EVENT_STC_TOTAL 0x60 +#define L2C_TAD_EVENT_STC_TOTAL_FAIL 0x61 +#define L2C_TAD_EVENT_STC_RMT 0x62 +#define L2C_TAD_EVENT_STC_RMT_FAIL 0x63 +#define L2C_TAD_EVENT_STC_LCL 0x64 +#define L2C_TAD_EVENT_STC_LCL_FAIL 0x65 +#define L2C_TAD_EVENT_OCI_RTG_WAIT 0x68 +#define L2C_TAD_EVENT_OCI_FWD_CYC_HIT 0x69 +#define L2C_TAD_EVENT_OCI_FWD_RACE 0x6a +#define L2C_TAD_EVENT_OCI_HAKS 0x6b +#define L2C_TAD_EVENT_OCI_FLDX_TAG_E_NODAT 0x6c +#define L2C_TAD_EVENT_OCI_FLDX_TAG_E_DAT 0x6d +#define L2C_TAD_EVENT_OCI_RLDD 0x6e +#define L2C_TAD_EVENT_OCI_RLDD_PEMD 0x6f +#define L2C_TAD_EVENT_OCI_RRQ_DAT_CNT 0x70 +#define L2C_TAD_EVENT_OCI_RRQ_DAT_DMASK 0x71 +#define L2C_TAD_EVENT_OCI_RSP_DAT_CNT 0x72 +#define L2C_TAD_EVENT_OCI_RSP_DAT_DMASK 0x73 +#define L2C_TAD_EVENT_OCI_RSP_DAT_VICD_CNT 0x74 +#define L2C_TAD_EVENT_OCI_RSP_DAT_VICD_DMASK 0x75 +#define L2C_TAD_EVENT_OCI_RTG_ALC_EVICT 0x76 +#define L2C_TAD_EVENT_OCI_RTG_ALC_VIC 0x77 +#define L2C_TAD_EVENT_QD0_IDX 0x80 +#define L2C_TAD_EVENT_QD0_RDAT 0x81 +#define L2C_TAD_EVENT_QD0_BNKS 0x82 +#define L2C_TAD_EVENT_QD0_WDAT 0x83 +#define L2C_TAD_EVENT_QD1_IDX 0x90 +#define L2C_TAD_EVENT_QD1_RDAT 0x91 +#define L2C_TAD_EVENT_QD1_BNKS 0x92 +#define L2C_TAD_EVENT_QD1_WDAT 0x93 +#define L2C_TAD_EVENT_QD2_IDX 0xa0 +#define L2C_TAD_EVENT_QD2_RDAT 0xa1 +#define L2C_TAD_EVENT_QD2_BNKS 0xa2 +#define L2C_TAD_EVENT_QD2_WDAT 0xa3 +#define L2C_TAD_EVENT_QD3_IDX 0xb0 +#define L2C_TAD_EVENT_QD3_RDAT 0xb1 +#define L2C_TAD_EVENT_QD3_BNKS 0xb2 +#define L2C_TAD_EVENT_QD3_WDAT 0xb3 +#define L2C_TAD_EVENT_QD4_IDX 0xc0 +#define L2C_TAD_EVENT_QD4_RDAT 0xc1 +#define L2C_TAD_EVENT_QD4_BNKS 0xc2 +#define L2C_TAD_EVENT_QD4_WDAT 0xc3 +#define L2C_TAD_EVENT_QD5_IDX 0xd0 +#define L2C_TAD_EVENT_QD5_RDAT 0xd1 +#define L2C_TAD_EVENT_QD5_BNKS 0xd2 +#define L2C_TAD_EVENT_QD5_WDAT 0xd3 +#define L2C_TAD_EVENT_QD6_IDX 0xe0 +#define L2C_TAD_EVENT_QD6_RDAT 0xe1 +#define L2C_TAD_EVENT_QD6_BNKS 0xe2 +#define L2C_TAD_EVENT_QD6_WDAT 0xe3 +#define L2C_TAD_EVENT_QD7_IDX 0xf0 +#define L2C_TAD_EVENT_QD7_RDAT 0xf1 +#define L2C_TAD_EVENT_QD7_BNKS 0xf2 +#define L2C_TAD_EVENT_QD7_WDAT 0xf3 + +static void thunder_uncore_start_l2c_tad(struct perf_event *event, int flags) +{ + struct thunder_uncore *uncore = to_uncore(event->pmu); + struct hw_perf_event *hwc = &event->hw; + struct thunder_uncore_node *node; + struct thunder_uncore_unit *unit; + int id; + + node = get_node(hwc->config, uncore); + id = get_id(hwc->config); + + /* reset counter values to zero */ + if (flags & PERF_EF_RELOAD) + list_for_each_entry(unit, &node->unit_list, entry) + writeq(0, hwc->event_base + unit->map); + + /* start counters on all units on the node */ + list_for_each_entry(unit, &node->unit_list, entry) + writeb(id, hwc->config_base + unit->map); + + hwc->state = 0; + perf_event_update_userpage(event); +} + +static void thunder_uncore_stop_l2c_tad(struct perf_event *event, int flags) +{ + struct thunder_uncore *uncore = to_uncore(event->pmu); + struct hw_perf_event *hwc = &event->hw; + struct thunder_uncore_node *node; + struct thunder_uncore_unit *unit; + + node = get_node(hwc->config, uncore); + + /* disable counters for all units on the node */ + list_for_each_entry(unit, &node->unit_list, entry) + writeb(L2C_TAD_EVENTS_DISABLED, hwc->config_base + unit->map); + hwc->state |= PERF_HES_STOPPED; + + if ((flags & PERF_EF_UPDATE) && !(hwc->state & PERF_HES_UPTODATE)) { + thunder_uncore_read(event); + hwc->state |= PERF_HES_UPTODATE; + } +} + +static int thunder_uncore_add_l2c_tad(struct perf_event *event, int flags) +{ + struct thunder_uncore *uncore = to_uncore(event->pmu); + struct hw_perf_event *hwc = &event->hw; + struct thunder_uncore_node *node; + int i; + + node = get_node(hwc->config, uncore); + + /* take the first available counter */ + for (i = 0; i < node->num_counters; i++) { + if (!cmpxchg(&node->events[i], NULL, event)) { + hwc->idx = i; + break; + } + } + + if (hwc->idx == -1) + return -EBUSY; + + /* see comment at beginning of file */ + hwc->config_base = L2C_TAD_PRF_OFFSET + hwc->idx; + hwc->event_base = L2C_TAD_PFC_OFFSET + hwc->idx * sizeof(u64); + + hwc->state = PERF_HES_UPTODATE | PERF_HES_STOPPED; + if (flags & PERF_EF_START) + thunder_uncore_start(event, PERF_EF_RELOAD); + return 0; +} + +PMU_FORMAT_ATTR(event, "config:0-7"); + +static struct attribute *thunder_l2c_tad_format_attr[] = { + &format_attr_event.attr, + &format_attr_node.attr, + NULL, +}; + +static struct attribute_group thunder_l2c_tad_format_group = { + .name = "format", + .attrs = thunder_l2c_tad_format_attr, +}; + +static struct attribute *thunder_l2c_tad_events_attr[] = { + UC_EVENT_ENTRY(l2t_hit, L2C_TAD_EVENT_L2T_HIT), + UC_EVENT_ENTRY(l2t_miss, L2C_TAD_EVENT_L2T_MISS), + UC_EVENT_ENTRY(l2t_noalloc, L2C_TAD_EVENT_L2T_NOALLOC), + UC_EVENT_ENTRY(l2_vic, L2C_TAD_EVENT_L2_VIC), + UC_EVENT_ENTRY(sc_fail, L2C_TAD_EVENT_SC_FAIL), + UC_EVENT_ENTRY(sc_pass, L2C_TAD_EVENT_SC_PASS), + UC_EVENT_ENTRY(lfb_occ, L2C_TAD_EVENT_LFB_OCC), + UC_EVENT_ENTRY(wait_lfb, L2C_TAD_EVENT_WAIT_LFB), + UC_EVENT_ENTRY(wait_vab, L2C_TAD_EVENT_WAIT_VAB), + UC_EVENT_ENTRY(open_ccpi, L2C_TAD_EVENT_OPEN_CCPI), + UC_EVENT_ENTRY(lookup, L2C_TAD_EVENT_LOOKUP), + UC_EVENT_ENTRY(lookup_xmc_lcl, L2C_TAD_EVENT_LOOKUP_XMC_LCL), + UC_EVENT_ENTRY(lookup_xmc_rmt, L2C_TAD_EVENT_LOOKUP_XMC_RMT), + UC_EVENT_ENTRY(lookup_mib, L2C_TAD_EVENT_LOOKUP_MIB), + UC_EVENT_ENTRY(lookup_all, L2C_TAD_EVENT_LOOKUP_ALL), + UC_EVENT_ENTRY(tag_alc_hit, L2C_TAD_EVENT_TAG_ALC_HIT), + UC_EVENT_ENTRY(tag_alc_miss, L2C_TAD_EVENT_TAG_ALC_MISS), + UC_EVENT_ENTRY(tag_alc_nalc, L2C_TAD_EVENT_TAG_ALC_NALC), + UC_EVENT_ENTRY(tag_nalc_hit, L2C_TAD_EVENT_TAG_NALC_HIT), + UC_EVENT_ENTRY(tag_nalc_miss, L2C_TAD_EVENT_TAG_NALC_MISS), + UC_EVENT_ENTRY(lmc_wr, L2C_TAD_EVENT_LMC_WR), + UC_EVENT_ENTRY(lmc_sblkdty, L2C_TAD_EVENT_LMC_SBLKDTY), + UC_EVENT_ENTRY(tag_alc_rtg_hit, L2C_TAD_EVENT_TAG_ALC_RTG_HIT), + UC_EVENT_ENTRY(tag_alc_rtg_hite, L2C_TAD_EVENT_TAG_ALC_RTG_HITE), + UC_EVENT_ENTRY(tag_alc_rtg_hits, L2C_TAD_EVENT_TAG_ALC_RTG_HITS), + UC_EVENT_ENTRY(tag_alc_rtg_miss, L2C_TAD_EVENT_TAG_ALC_RTG_MISS), + UC_EVENT_ENTRY(tag_alc_nalc_rtg_hit, L2C_TAD_EVENT_TAG_NALC_RTG_HIT), + UC_EVENT_ENTRY(tag_nalc_rtg_miss, L2C_TAD_EVENT_TAG_NALC_RTG_MISS), + UC_EVENT_ENTRY(tag_nalc_rtg_hite, L2C_TAD_EVENT_TAG_NALC_RTG_HITE), + UC_EVENT_ENTRY(tag_nalc_rtg_hits, L2C_TAD_EVENT_TAG_NALC_RTG_HITS), + UC_EVENT_ENTRY(tag_alc_lcl_evict, L2C_TAD_EVENT_TAG_ALC_LCL_EVICT), + UC_EVENT_ENTRY(tag_alc_lcl_clnvic, L2C_TAD_EVENT_TAG_ALC_LCL_CLNVIC), + UC_EVENT_ENTRY(tag_alc_lcl_dtyvic, L2C_TAD_EVENT_TAG_ALC_LCL_DTYVIC), + UC_EVENT_ENTRY(tag_alc_rmt_evict, L2C_TAD_EVENT_TAG_ALC_RMT_EVICT), + UC_EVENT_ENTRY(tag_alc_rmt_vic, L2C_TAD_EVENT_TAG_ALC_RMT_VIC), + UC_EVENT_ENTRY(rtg_alc, L2C_TAD_EVENT_RTG_ALC), + UC_EVENT_ENTRY(rtg_alc_hit, L2C_TAD_EVENT_RTG_ALC_HIT), + UC_EVENT_ENTRY(rtg_alc_hitwb, L2C_TAD_EVENT_RTG_ALC_HITWB), + UC_EVENT_ENTRY(stc_total, L2C_TAD_EVENT_STC_TOTAL), + UC_EVENT_ENTRY(stc_total_fail, L2C_TAD_EVENT_STC_TOTAL_FAIL), + UC_EVENT_ENTRY(stc_rmt, L2C_TAD_EVENT_STC_RMT), + UC_EVENT_ENTRY(stc_rmt_fail, L2C_TAD_EVENT_STC_RMT_FAIL), + UC_EVENT_ENTRY(stc_lcl, L2C_TAD_EVENT_STC_LCL), + UC_EVENT_ENTRY(stc_lcl_fail, L2C_TAD_EVENT_STC_LCL_FAIL), + UC_EVENT_ENTRY(oci_rtg_wait, L2C_TAD_EVENT_OCI_RTG_WAIT), + UC_EVENT_ENTRY(oci_fwd_cyc_hit, L2C_TAD_EVENT_OCI_FWD_CYC_HIT), + UC_EVENT_ENTRY(oci_fwd_race, L2C_TAD_EVENT_OCI_FWD_RACE), + UC_EVENT_ENTRY(oci_haks, L2C_TAD_EVENT_OCI_HAKS), + UC_EVENT_ENTRY(oci_fldx_tag_e_nodat, L2C_TAD_EVENT_OCI_FLDX_TAG_E_NODAT), + UC_EVENT_ENTRY(oci_fldx_tag_e_dat, L2C_TAD_EVENT_OCI_FLDX_TAG_E_DAT), + UC_EVENT_ENTRY(oci_rldd, L2C_TAD_EVENT_OCI_RLDD), + UC_EVENT_ENTRY(oci_rldd_pemd, L2C_TAD_EVENT_OCI_RLDD_PEMD), + UC_EVENT_ENTRY(oci_rrq_dat_cnt, L2C_TAD_EVENT_OCI_RRQ_DAT_CNT), + UC_EVENT_ENTRY(oci_rrq_dat_dmask, L2C_TAD_EVENT_OCI_RRQ_DAT_DMASK), + UC_EVENT_ENTRY(oci_rsp_dat_cnt, L2C_TAD_EVENT_OCI_RSP_DAT_CNT), + UC_EVENT_ENTRY(oci_rsp_dat_dmaks, L2C_TAD_EVENT_OCI_RSP_DAT_DMASK), + UC_EVENT_ENTRY(oci_rsp_dat_vicd_cnt, L2C_TAD_EVENT_OCI_RSP_DAT_VICD_CNT), + UC_EVENT_ENTRY(oci_rsp_dat_vicd_dmask, L2C_TAD_EVENT_OCI_RSP_DAT_VICD_DMASK), + UC_EVENT_ENTRY(oci_rtg_alc_evict, L2C_TAD_EVENT_OCI_RTG_ALC_EVICT), + UC_EVENT_ENTRY(oci_rtg_alc_vic, L2C_TAD_EVENT_OCI_RTG_ALC_VIC), + UC_EVENT_ENTRY(qd0_idx, L2C_TAD_EVENT_QD0_IDX), + UC_EVENT_ENTRY(qd0_rdat, L2C_TAD_EVENT_QD0_RDAT), + UC_EVENT_ENTRY(qd0_bnks, L2C_TAD_EVENT_QD0_BNKS), + UC_EVENT_ENTRY(qd0_wdat, L2C_TAD_EVENT_QD0_WDAT), + UC_EVENT_ENTRY(qd1_idx, L2C_TAD_EVENT_QD1_IDX), + UC_EVENT_ENTRY(qd1_rdat, L2C_TAD_EVENT_QD1_RDAT), + UC_EVENT_ENTRY(qd1_bnks, L2C_TAD_EVENT_QD1_BNKS), + UC_EVENT_ENTRY(qd1_wdat, L2C_TAD_EVENT_QD1_WDAT), + UC_EVENT_ENTRY(qd2_idx, L2C_TAD_EVENT_QD2_IDX), + UC_EVENT_ENTRY(qd2_rdat, L2C_TAD_EVENT_QD2_RDAT), + UC_EVENT_ENTRY(qd2_bnks, L2C_TAD_EVENT_QD2_BNKS), + UC_EVENT_ENTRY(qd2_wdat, L2C_TAD_EVENT_QD2_WDAT), + UC_EVENT_ENTRY(qd3_idx, L2C_TAD_EVENT_QD3_IDX), + UC_EVENT_ENTRY(qd3_rdat, L2C_TAD_EVENT_QD3_RDAT), + UC_EVENT_ENTRY(qd3_bnks, L2C_TAD_EVENT_QD3_BNKS), + UC_EVENT_ENTRY(qd3_wdat, L2C_TAD_EVENT_QD3_WDAT), + UC_EVENT_ENTRY(qd4_idx, L2C_TAD_EVENT_QD4_IDX), + UC_EVENT_ENTRY(qd4_rdat, L2C_TAD_EVENT_QD4_RDAT), + UC_EVENT_ENTRY(qd4_bnks, L2C_TAD_EVENT_QD4_BNKS), + UC_EVENT_ENTRY(qd4_wdat, L2C_TAD_EVENT_QD4_WDAT), + UC_EVENT_ENTRY(qd5_idx, L2C_TAD_EVENT_QD5_IDX), + UC_EVENT_ENTRY(qd5_rdat, L2C_TAD_EVENT_QD5_RDAT), + UC_EVENT_ENTRY(qd5_bnks, L2C_TAD_EVENT_QD5_BNKS), + UC_EVENT_ENTRY(qd5_wdat, L2C_TAD_EVENT_QD5_WDAT), + UC_EVENT_ENTRY(qd6_idx, L2C_TAD_EVENT_QD6_IDX), + UC_EVENT_ENTRY(qd6_rdat, L2C_TAD_EVENT_QD6_RDAT), + UC_EVENT_ENTRY(qd6_bnks, L2C_TAD_EVENT_QD6_BNKS), + UC_EVENT_ENTRY(qd6_wdat, L2C_TAD_EVENT_QD6_WDAT), + UC_EVENT_ENTRY(qd7_idx, L2C_TAD_EVENT_QD7_IDX), + UC_EVENT_ENTRY(qd7_rdat, L2C_TAD_EVENT_QD7_RDAT), + UC_EVENT_ENTRY(qd7_bnks, L2C_TAD_EVENT_QD7_BNKS), + UC_EVENT_ENTRY(qd7_wdat, L2C_TAD_EVENT_QD7_WDAT), + NULL, +}; + +static struct attribute_group thunder_l2c_tad_events_group = { + .name = "events", + .attrs = thunder_l2c_tad_events_attr, +}; + +static const struct attribute_group *thunder_l2c_tad_attr_groups[] = { + &thunder_uncore_attr_group, + &thunder_l2c_tad_format_group, + &thunder_l2c_tad_events_group, + NULL, +}; + +struct pmu thunder_l2c_tad_pmu = { + .name = "thunder_l2c_tad", + .task_ctx_nr = perf_invalid_context, + .event_init = thunder_uncore_event_init, + .add = thunder_uncore_add_l2c_tad, + .del = thunder_uncore_del, + .start = thunder_uncore_start_l2c_tad, + .stop = thunder_uncore_stop_l2c_tad, + .read = thunder_uncore_read, + .attr_groups = thunder_l2c_tad_attr_groups, +}; + +static bool event_valid(u64 c) +{ + if ((c > 0 && + c <= L2C_TAD_EVENT_OPEN_CCPI) || + (c >= L2C_TAD_EVENT_LOOKUP && + c <= L2C_TAD_EVENT_LOOKUP_ALL) || + (c >= L2C_TAD_EVENT_TAG_ALC_HIT && + c <= L2C_TAD_EVENT_TAG_NALC_MISS) || + (c >= L2C_TAD_EVENT_LMC_WR && + c <= L2C_TAD_EVENT_STC_LCL_FAIL) || + (c >= L2C_TAD_EVENT_OCI_RTG_WAIT && + c <= L2C_TAD_EVENT_OCI_RTG_ALC_VIC) || + /* L2C_TAD_EVENT_QD[0..7] IDX,RDAT,BNKS,WDAT => 0x80 .. 0xf3 */ + ((c & 0x80) && ((c & 0xf) <= 3))) + return true; + + return false; +} + +int __init thunder_uncore_l2c_tad_setup(void) +{ + int ret = -ENOMEM; + + thunder_uncore_l2c_tad = kzalloc(sizeof(*thunder_uncore_l2c_tad), + GFP_KERNEL); + if (!thunder_uncore_l2c_tad) + goto fail_nomem; + + ret = thunder_uncore_setup(thunder_uncore_l2c_tad, 0xa02e, + &thunder_l2c_tad_pmu, L2C_TAD_NR_COUNTERS); + if (ret) + goto fail; + + thunder_uncore_l2c_tad->event_valid = event_valid; + return 0; + +fail: + kfree(thunder_uncore_l2c_tad); +fail_nomem: + return ret; +} -- 2.9.0.rc0.21.g7777322