/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2003-2008 Joseph Koshy * Copyright (c) 2007 The FreeBSD Foundation * Copyright (c) 2021 ARM Ltd * * Portions of this software were developed by A. Joseph Koshy under * sponsorship from the FreeBSD Foundation and Google, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* Arm CoreLink CMN-600 Coherent Mesh Network PMU Driver */ #include #include #include #include #include #include #include #include #include struct cmn600_descr { struct pmc_descr pd_descr; /* "base class" */ void *pd_rw_arg; /* Argument to use with read/write */ struct pmc *pd_pmc; struct pmc_hw *pd_phw; uint32_t pd_nodeid; int32_t pd_node_type; int pd_local_counter; }; static struct cmn600_descr **cmn600_pmcdesc; static struct cmn600_pmc cmn600_pmcs[CMN600_UNIT_MAX]; static int cmn600_units = 0; static inline struct cmn600_descr * cmn600desc(int ri) { return (cmn600_pmcdesc[ri]); } static inline int class_ri2unit(int ri) { return (ri / CMN600_COUNTERS_N); } #define EVENCNTR(x) (((x) >> POR_DT_PMEVCNT_EVENCNT_SHIFT) << \ POR_DTM_PMEVCNT_CNTR_WIDTH) #define ODDCNTR(x) (((x) >> POR_DT_PMEVCNT_ODDCNT_SHIFT) << \ POR_DTM_PMEVCNT_CNTR_WIDTH) static uint64_t cmn600_pmu_readcntr(void *arg, u_int nodeid, u_int xpcntr, u_int dtccntr, u_int width) { uint64_t dtcval, xpval; KASSERT(xpcntr < 4, ("[cmn600,%d] XP counter number %d is too big." " Max: 3", __LINE__, xpcntr)); KASSERT(dtccntr < 8, ("[cmn600,%d] Global counter number %d is too" " big. Max: 7", __LINE__, dtccntr)); dtcval = pmu_cmn600_rd8(arg, nodeid, NODE_TYPE_DTC, POR_DT_PMEVCNT(dtccntr >> 1)); if (width == 4) { dtcval = (dtccntr & 1) ? ODDCNTR(dtcval) : EVENCNTR(dtcval); dtcval &= 0xffffffff0000UL; } else dtcval <<= POR_DTM_PMEVCNT_CNTR_WIDTH; xpval = pmu_cmn600_rd8(arg, nodeid, NODE_TYPE_XP, POR_DTM_PMEVCNT); xpval >>= xpcntr * POR_DTM_PMEVCNT_CNTR_WIDTH; xpval &= 0xffffUL; return (dtcval | xpval); } static void cmn600_pmu_writecntr(void *arg, u_int nodeid, u_int xpcntr, u_int dtccntr, u_int width, uint64_t val) { int shift; KASSERT(xpcntr < 4, ("[cmn600,%d] XP counter number %d is too big." " Max: 3", __LINE__, xpcntr)); KASSERT(dtccntr < 8, ("[cmn600,%d] Global counter number %d is too" " big. Max: 7", __LINE__, dtccntr)); if (width == 4) { shift = (dtccntr & 1) ? POR_DT_PMEVCNT_ODDCNT_SHIFT : POR_DT_PMEVCNT_EVENCNT_SHIFT; pmu_cmn600_md8(arg, nodeid, NODE_TYPE_DTC, POR_DT_PMEVCNT(dtccntr >> 1), 0xffffffffUL << shift, ((val >> POR_DTM_PMEVCNT_CNTR_WIDTH) & 0xffffffff) << shift); } else pmu_cmn600_wr8(arg, nodeid, NODE_TYPE_DTC, POR_DT_PMEVCNT(dtccntr & ~0x1), val >> POR_DTM_PMEVCNT_CNTR_WIDTH); shift = xpcntr * POR_DTM_PMEVCNT_CNTR_WIDTH; val &= 0xffffUL; pmu_cmn600_md8(arg, nodeid, NODE_TYPE_XP, POR_DTM_PMEVCNT, 0xffffUL << shift, val << shift); } #undef EVENCNTR #undef ODDCNTR /* * read a pmc register */ static int cmn600_read_pmc(int cpu, int ri, struct pmc *pm, pmc_value_t *v) { int counter, local_counter, nodeid; struct cmn600_descr *desc; void *arg; KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), ("[cmn600,%d] illegal CPU value %d", __LINE__, cpu)); KASSERT(ri >= 0, ("[cmn600,%d] row-index %d out of range", __LINE__, ri)); counter = ri % CMN600_COUNTERS_N; desc = cmn600desc(ri); arg = desc->pd_rw_arg; nodeid = pm->pm_md.pm_cmn600.pm_cmn600_nodeid; local_counter = pm->pm_md.pm_cmn600.pm_cmn600_local_counter; *v = cmn600_pmu_readcntr(arg, nodeid, local_counter, counter, 4); PMCDBG3(MDP, REA, 2, "%s id=%d -> %jd", __func__, ri, *v); return (0); } /* * Write a pmc register. */ static int cmn600_write_pmc(int cpu, int ri, struct pmc *pm, pmc_value_t v) { int counter, local_counter, nodeid; struct cmn600_descr *desc; void *arg; KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), ("[cmn600,%d] illegal CPU value %d", __LINE__, cpu)); KASSERT(ri >= 0, ("[cmn600,%d] row-index %d out of range", __LINE__, ri)); counter = ri % CMN600_COUNTERS_N; desc = cmn600desc(ri); arg = desc->pd_rw_arg; nodeid = pm->pm_md.pm_cmn600.pm_cmn600_nodeid; local_counter = pm->pm_md.pm_cmn600.pm_cmn600_local_counter; KASSERT(pm != NULL, ("[cmn600,%d] PMC not owned (cpu%d,pmc%d)", __LINE__, cpu, ri)); PMCDBG4(MDP, WRI, 1, "%s cpu=%d ri=%d v=%jx", __func__, cpu, ri, v); cmn600_pmu_writecntr(arg, nodeid, local_counter, counter, 4, v); return (0); } /* * configure hardware pmc according to the configuration recorded in * pmc 'pm'. */ static int cmn600_config_pmc(int cpu, int ri, struct pmc *pm) { struct pmc_hw *phw; PMCDBG4(MDP, CFG, 1, "%s cpu=%d ri=%d pm=%p", __func__, cpu, ri, pm); KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), ("[cmn600,%d] illegal CPU value %d", __LINE__, cpu)); KASSERT(ri >= 0, ("[cmn600,%d] row-index %d out of range", __LINE__, ri)); phw = cmn600desc(ri)->pd_phw; KASSERT(pm == NULL || phw->phw_pmc == NULL, ("[cmn600,%d] pm=%p phw->pm=%p hwpmc not unconfigured", __LINE__, pm, phw->phw_pmc)); phw->phw_pmc = pm; return (0); } /* * Retrieve a configured PMC pointer from hardware state. */ static int cmn600_get_config(int cpu, int ri, struct pmc **ppm) { *ppm = cmn600desc(ri)->pd_phw->phw_pmc; return (0); } #define CASE_DN_VER_EVT(n, id) case PMC_EV_CMN600_PMU_ ## n: { *event = id; \ return (0); } static int cmn600_map_ev2event(int ev, int rev, int *node_type, uint8_t *event) { if (ev < PMC_EV_CMN600_PMU_dn_rxreq_dvmop || ev > PMC_EV_CMN600_PMU_rni_rdb_ord) return (EINVAL); if (ev <= PMC_EV_CMN600_PMU_dn_rxreq_trk_full) { *node_type = NODE_TYPE_DVM; if (rev < 0x200) { switch (ev) { CASE_DN_VER_EVT(dn_rxreq_dvmop, 1); CASE_DN_VER_EVT(dn_rxreq_dvmsync, 2); CASE_DN_VER_EVT(dn_rxreq_dvmop_vmid_filtered, 3); CASE_DN_VER_EVT(dn_rxreq_retried, 4); CASE_DN_VER_EVT(dn_rxreq_trk_occupancy, 5); } } else { switch (ev) { CASE_DN_VER_EVT(dn_rxreq_tlbi_dvmop, 0x01); CASE_DN_VER_EVT(dn_rxreq_bpi_dvmop, 0x02); CASE_DN_VER_EVT(dn_rxreq_pici_dvmop, 0x03); CASE_DN_VER_EVT(dn_rxreq_vivi_dvmop, 0x04); CASE_DN_VER_EVT(dn_rxreq_dvmsync, 0x05); CASE_DN_VER_EVT(dn_rxreq_dvmop_vmid_filtered, 0x06); CASE_DN_VER_EVT(dn_rxreq_dvmop_other_filtered, 0x07); CASE_DN_VER_EVT(dn_rxreq_retried, 0x08); CASE_DN_VER_EVT(dn_rxreq_snp_sent, 0x09); CASE_DN_VER_EVT(dn_rxreq_snp_stalled, 0x0a); CASE_DN_VER_EVT(dn_rxreq_trk_full, 0x0b); CASE_DN_VER_EVT(dn_rxreq_trk_occupancy, 0x0c); } } return (EINVAL); } else if (ev <= PMC_EV_CMN600_PMU_hnf_snp_fwded) { *node_type = NODE_TYPE_HN_F; *event = ev - PMC_EV_CMN600_PMU_hnf_cache_miss; return (0); } else if (ev <= PMC_EV_CMN600_PMU_hni_pcie_serialization) { *node_type = NODE_TYPE_HN_I; *event = ev - PMC_EV_CMN600_PMU_hni_rrt_rd_occ_cnt_ovfl; return (0); } else if (ev <= PMC_EV_CMN600_PMU_xp_partial_dat_flit) { *node_type = NODE_TYPE_XP; *event = ev - PMC_EV_CMN600_PMU_xp_txflit_valid; return (0); } else if (ev <= PMC_EV_CMN600_PMU_sbsx_txrsp_stall) { *node_type = NODE_TYPE_SBSX; *event = ev - PMC_EV_CMN600_PMU_sbsx_rd_req; return (0); } else if (ev <= PMC_EV_CMN600_PMU_rnd_rdb_ord) { *node_type = NODE_TYPE_RN_D; *event = ev - PMC_EV_CMN600_PMU_rnd_s0_rdata_beats; return (0); } else if (ev <= PMC_EV_CMN600_PMU_rni_rdb_ord) { *node_type = NODE_TYPE_RN_I; *event = ev - PMC_EV_CMN600_PMU_rni_s0_rdata_beats; return (0); } else if (ev <= PMC_EV_CMN600_PMU_cxha_snphaz_occ) { *node_type = NODE_TYPE_CXHA; *event = ev - PMC_EV_CMN600_PMU_cxha_rddatbyp; return (0); } else if (ev <= PMC_EV_CMN600_PMU_cxra_ext_dat_stall) { *node_type = NODE_TYPE_CXRA; *event = ev - PMC_EV_CMN600_PMU_cxra_req_trk_occ; return (0); } else if (ev <= PMC_EV_CMN600_PMU_cxla_avg_latency_form_tx_tlp) { *node_type = NODE_TYPE_CXLA; *event = ev - PMC_EV_CMN600_PMU_cxla_rx_tlp_link0; return (0); } return (EINVAL); } /* * Check if a given allocation is feasible. */ static int cmn600_allocate_pmc(int cpu, int ri, struct pmc *pm, const struct pmc_op_pmcallocate *a) { struct cmn600_descr *desc; const struct pmc_descr *pd; uint64_t caps __unused; int local_counter, node_type; enum pmc_event pe; void *arg; uint8_t e; int err; (void) cpu; KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), ("[cmn600,%d] illegal CPU value %d", __LINE__, cpu)); KASSERT(ri >= 0, ("[cmn600,%d] row-index %d out of range", __LINE__, ri)); desc = cmn600desc(ri); arg = desc->pd_rw_arg; pd = &desc->pd_descr; if (cmn600_pmcs[class_ri2unit(ri)].domain != pcpu_find(cpu)->pc_domain) return (EINVAL); /* check class match */ if (pd->pd_class != a->pm_class) return (EINVAL); caps = pm->pm_caps; PMCDBG3(MDP, ALL, 1, "%s ri=%d caps=0x%x", __func__, ri, caps); pe = a->pm_ev; err = cmn600_map_ev2event(pe, pmu_cmn600_rev(arg), &node_type, &e); if (err != 0) return (err); err = pmu_cmn600_alloc_localpmc(arg, a->pm_md.pm_cmn600.pma_cmn600_nodeid, node_type, &local_counter); if (err != 0) return (err); pm->pm_md.pm_cmn600.pm_cmn600_config = a->pm_md.pm_cmn600.pma_cmn600_config; pm->pm_md.pm_cmn600.pm_cmn600_occupancy = a->pm_md.pm_cmn600.pma_cmn600_occupancy; desc->pd_nodeid = pm->pm_md.pm_cmn600.pm_cmn600_nodeid = a->pm_md.pm_cmn600.pma_cmn600_nodeid; desc->pd_node_type = pm->pm_md.pm_cmn600.pm_cmn600_node_type = node_type; pm->pm_md.pm_cmn600.pm_cmn600_event = e; desc->pd_local_counter = pm->pm_md.pm_cmn600.pm_cmn600_local_counter = local_counter; return (0); } /* Release machine dependent state associated with a PMC. */ static int cmn600_release_pmc(int cpu, int ri, struct pmc *pmc) { struct cmn600_descr *desc; struct pmc_hw *phw; struct pmc *pm __diagused; int err; (void) pmc; KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), ("[cmn600,%d] illegal CPU value %d", __LINE__, cpu)); KASSERT(ri >= 0, ("[cmn600,%d] row-index %d out of range", __LINE__, ri)); desc = cmn600desc(ri); phw = desc->pd_phw; pm = phw->phw_pmc; err = pmu_cmn600_free_localpmc(desc->pd_rw_arg, desc->pd_nodeid, desc->pd_node_type, desc->pd_local_counter); if (err != 0) return (err); KASSERT(pm == NULL, ("[cmn600,%d] PHW pmc %p non-NULL", __LINE__, pm)); return (0); } static inline uint64_t cmn600_encode_source(int node_type, int counter, int port, int sub) { /* Calculate pmevcnt0_input_sel based on list in Table 3-794. */ if (node_type == NODE_TYPE_XP) return (0x4 | counter); return (((port + 1) << 4) | (sub << 2) | counter); } /* * start a PMC. */ static int cmn600_start_pmc(int cpu, int ri, struct pmc *pm) { int counter, local_counter, node_type, shift; uint64_t config, occupancy, source, xp_pmucfg; struct cmn600_descr *desc; uint8_t event, port, sub; uint16_t nodeid; void *arg; KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), ("[cmn600,%d] illegal CPU value %d", __LINE__, cpu)); KASSERT(ri >= 0, ("[cmn600,%d] row-index %d out of range", __LINE__, ri)); counter = ri % CMN600_COUNTERS_N; desc = cmn600desc(ri); arg = desc->pd_rw_arg; PMCDBG3(MDP, STA, 1, "%s cpu=%d ri=%d", __func__, cpu, ri); config = pm->pm_md.pm_cmn600.pm_cmn600_config; occupancy = pm->pm_md.pm_cmn600.pm_cmn600_occupancy; node_type = pm->pm_md.pm_cmn600.pm_cmn600_node_type; event = pm->pm_md.pm_cmn600.pm_cmn600_event; nodeid = pm->pm_md.pm_cmn600.pm_cmn600_nodeid; local_counter = pm->pm_md.pm_cmn600.pm_cmn600_local_counter; port = (nodeid >> 2) & 1; sub = nodeid & 3; switch (node_type) { case NODE_TYPE_DVM: case NODE_TYPE_HN_F: case NODE_TYPE_CXHA: case NODE_TYPE_CXRA: pmu_cmn600_md8(arg, nodeid, node_type, CMN600_COMMON_PMU_EVENT_SEL, CMN600_COMMON_PMU_EVENT_SEL_OCC_MASK, occupancy << CMN600_COMMON_PMU_EVENT_SEL_OCC_SHIFT); break; case NODE_TYPE_XP: /* Set PC and Interface.*/ event |= config; } /* * 5.5.1 Set up PMU counters * 1. Ensure that the NIDEN input is asserted. HW side. */ /* 2. Select event of target node for one of four outputs. */ pmu_cmn600_md8(arg, nodeid, node_type, CMN600_COMMON_PMU_EVENT_SEL, 0xff << (local_counter * 8), event << (local_counter * 8)); xp_pmucfg = pmu_cmn600_rd8(arg, nodeid, NODE_TYPE_XP, POR_DTM_PMU_CONFIG); /* * 3. configure XP to connect one of four target node outputs to local * counter. */ source = cmn600_encode_source(node_type, local_counter, port, sub); shift = (local_counter * POR_DTM_PMU_CONFIG_VCNT_INPUT_SEL_WIDTH) + POR_DTM_PMU_CONFIG_VCNT_INPUT_SEL_SHIFT; xp_pmucfg &= ~(0xffUL << shift); xp_pmucfg |= source << shift; /* 4. Pair with global counters A, B, C, ..., H. */ shift = (local_counter * 4) + 16; xp_pmucfg &= ~(0xfUL << shift); xp_pmucfg |= counter << shift; /* Enable pairing.*/ xp_pmucfg |= 1 << (local_counter + 4); /* 5. Combine local counters 0 with 1, 2 with 3 or all four. */ xp_pmucfg &= ~0xeUL; /* 6. Enable XP's PMU function. */ xp_pmucfg |= POR_DTM_PMU_CONFIG_PMU_EN; pmu_cmn600_wr8(arg, nodeid, NODE_TYPE_XP, POR_DTM_PMU_CONFIG, xp_pmucfg); if (node_type == NODE_TYPE_CXLA) pmu_cmn600_set8(arg, nodeid, NODE_TYPE_CXLA, POR_CXG_RA_CFG_CTL, EN_CXLA_PMUCMD_PROP); /* 7. Enable DTM. */ pmu_cmn600_set8(arg, nodeid, NODE_TYPE_XP, POR_DTM_CONTROL, POR_DTM_CONTROL_DTM_ENABLE); /* 8. Reset grouping of global counters. Use 32 bits. */ pmu_cmn600_clr8(arg, nodeid, NODE_TYPE_DTC, POR_DT_PMCR, POR_DT_PMCR_CNTCFG_MASK); /* 9. Enable DTC. */ pmu_cmn600_set8(arg, nodeid, NODE_TYPE_DTC, POR_DT_DTC_CTL, POR_DT_DTC_CTL_DT_EN); /* 10. Enable Overflow Interrupt. */ pmu_cmn600_set8(arg, nodeid, NODE_TYPE_DTC, POR_DT_PMCR, POR_DT_PMCR_OVFL_INTR_EN); /* 11. Run PMC. */ pmu_cmn600_set8(arg, nodeid, NODE_TYPE_DTC, POR_DT_PMCR, POR_DT_PMCR_PMU_EN); return (0); } /* * Stop a PMC. */ static int cmn600_stop_pmc(int cpu, int ri, struct pmc *pm) { struct cmn600_descr *desc; int local_counter; uint64_t val; KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), ("[cmn600,%d] illegal CPU value %d", __LINE__, cpu)); KASSERT(ri >= 0, ("[cmn600,%d] row-index %d out of range", __LINE__, ri)); desc = cmn600desc(ri); PMCDBG2(MDP, STO, 1, "%s ri=%d", __func__, ri); /* Disable pairing. */ local_counter = pm->pm_md.pm_cmn600.pm_cmn600_local_counter; pmu_cmn600_clr8(desc->pd_rw_arg, pm->pm_md.pm_cmn600.pm_cmn600_nodeid, NODE_TYPE_XP, POR_DTM_PMU_CONFIG, (1 << (local_counter + 4))); /* Shutdown XP's DTM function if no paired counters. */ val = pmu_cmn600_rd8(desc->pd_rw_arg, pm->pm_md.pm_cmn600.pm_cmn600_nodeid, NODE_TYPE_XP, POR_DTM_PMU_CONFIG); if ((val & 0xf0) == 0) pmu_cmn600_clr8(desc->pd_rw_arg, pm->pm_md.pm_cmn600.pm_cmn600_nodeid, NODE_TYPE_XP, POR_DTM_PMU_CONFIG, POR_DTM_CONTROL_DTM_ENABLE); return (0); } /* * describe a PMC */ static int cmn600_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc) { struct pmc_descr *pd; struct pmc_hw *phw; KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), ("[cmn600,%d] illegal CPU %d", __LINE__, cpu)); KASSERT(ri >= 0, ("[cmn600,%d] row-index %d out of range", __LINE__, ri)); phw = cmn600desc(ri)->pd_phw; pd = &cmn600desc(ri)->pd_descr; strlcpy(pi->pm_name, pd->pd_name, sizeof(pi->pm_name)); pi->pm_class = pd->pd_class; if (phw->phw_state & PMC_PHW_FLAG_IS_ENABLED) { pi->pm_enabled = TRUE; *ppmc = phw->phw_pmc; } else { pi->pm_enabled = FALSE; *ppmc = NULL; } return (0); } /* * processor dependent initialization. */ static int cmn600_pcpu_init(struct pmc_mdep *md, int cpu) { int first_ri, n, npmc; struct pmc_hw *phw; struct pmc_cpu *pc; int mdep_class; mdep_class = PMC_MDEP_CLASS_INDEX_CMN600; KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), ("[cmn600,%d] insane cpu number %d", __LINE__, cpu)); PMCDBG1(MDP, INI, 1, "cmn600-init cpu=%d", cpu); /* * Set the content of the hardware descriptors to a known * state and initialize pointers in the MI per-cpu descriptor. */ pc = pmc_pcpu[cpu]; first_ri = md->pmd_classdep[mdep_class].pcd_ri; npmc = md->pmd_classdep[mdep_class].pcd_num; for (n = 0; n < npmc; n++, phw++) { phw = cmn600desc(n)->pd_phw; phw->phw_state = PMC_PHW_CPU_TO_STATE(cpu) | PMC_PHW_INDEX_TO_STATE(n); /* Set enabled only if unit present. */ if (cmn600_pmcs[class_ri2unit(n)].arg != NULL) phw->phw_state |= PMC_PHW_FLAG_IS_ENABLED; phw->phw_pmc = NULL; pc->pc_hwpmcs[n + first_ri] = phw; } return (0); } /* * processor dependent cleanup prior to the KLD * being unloaded */ static int cmn600_pcpu_fini(struct pmc_mdep *md, int cpu) { return (0); } static int cmn600_pmu_intr(struct trapframe *tf, int unit, int i) { struct pmc_cpu *pc __diagused; struct pmc_hw *phw; struct pmc *pm; int error, cpu, ri; ri = i + unit * CMN600_COUNTERS_N; cpu = curcpu; KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), ("[cmn600,%d] CPU %d out of range", __LINE__, cpu)); pc = pmc_pcpu[cpu]; KASSERT(pc != NULL, ("pc != NULL")); phw = cmn600desc(ri)->pd_phw; KASSERT(phw != NULL, ("phw != NULL")); pm = phw->phw_pmc; if (pm == NULL) return (0); if (!PMC_IS_SAMPLING_MODE(PMC_TO_MODE(pm))) { /* Always CPU0. */ pm->pm_pcpu_state[0].pps_overflowcnt += 1; return (0); } if (pm->pm_state != PMC_STATE_RUNNING) return (0); error = pmc_process_interrupt(PMC_HR, pm, tf); if (error) cmn600_stop_pmc(cpu, ri, pm); /* Reload sampling count */ cmn600_write_pmc(cpu, ri, pm, pm->pm_sc.pm_reloadcount); return (0); } /* * Initialize ourselves. */ static int cmn600_init_pmc_units(void) { int i; if (cmn600_units > 0) { /* Already initialized. */ return (0); } cmn600_units = cmn600_pmc_nunits(); if (cmn600_units == 0) return (ENOENT); for (i = 0; i < cmn600_units; i++) { if (cmn600_pmc_getunit(i, &cmn600_pmcs[i].arg, &cmn600_pmcs[i].domain) != 0) cmn600_pmcs[i].arg = NULL; } return (0); } int pmc_cmn600_nclasses(void) { if (cmn600_pmc_nunits() > 0) return (1); return (0); } int pmc_cmn600_initialize(struct pmc_mdep *md) { struct pmc_classdep *pcd; int i, npmc, unit; cmn600_init_pmc_units(); KASSERT(md != NULL, ("[cmn600,%d] md is NULL", __LINE__)); KASSERT(cmn600_units < CMN600_UNIT_MAX, ("[cmn600,%d] cmn600_units too big", __LINE__)); PMCDBG0(MDP,INI,1, "cmn600-initialize"); npmc = CMN600_COUNTERS_N * cmn600_units; pcd = &md->pmd_classdep[PMC_MDEP_CLASS_INDEX_CMN600]; pcd->pcd_caps = PMC_CAP_SYSTEM | PMC_CAP_READ | PMC_CAP_WRITE | PMC_CAP_QUALIFIER | PMC_CAP_INTERRUPT | PMC_CAP_DOMWIDE; pcd->pcd_class = PMC_CLASS_CMN600_PMU; pcd->pcd_num = npmc; pcd->pcd_ri = md->pmd_npmc; pcd->pcd_width = 48; pcd->pcd_allocate_pmc = cmn600_allocate_pmc; pcd->pcd_config_pmc = cmn600_config_pmc; pcd->pcd_describe = cmn600_describe; pcd->pcd_get_config = cmn600_get_config; pcd->pcd_get_msr = NULL; pcd->pcd_pcpu_fini = cmn600_pcpu_fini; pcd->pcd_pcpu_init = cmn600_pcpu_init; pcd->pcd_read_pmc = cmn600_read_pmc; pcd->pcd_release_pmc = cmn600_release_pmc; pcd->pcd_start_pmc = cmn600_start_pmc; pcd->pcd_stop_pmc = cmn600_stop_pmc; pcd->pcd_write_pmc = cmn600_write_pmc; md->pmd_npmc += npmc; cmn600_pmcdesc = malloc(sizeof(struct cmn600_descr *) * npmc * CMN600_PMU_DEFAULT_UNITS_N, M_PMC, M_WAITOK|M_ZERO); for (i = 0; i < npmc; i++) { cmn600_pmcdesc[i] = malloc(sizeof(struct cmn600_descr), M_PMC, M_WAITOK|M_ZERO); unit = i / CMN600_COUNTERS_N; KASSERT(unit >= 0, ("unit >= 0")); KASSERT(cmn600_pmcs[unit].arg != NULL, ("arg != NULL")); cmn600_pmcdesc[i]->pd_rw_arg = cmn600_pmcs[unit].arg; cmn600_pmcdesc[i]->pd_descr.pd_class = PMC_CLASS_CMN600_PMU; cmn600_pmcdesc[i]->pd_descr.pd_caps = pcd->pcd_caps; cmn600_pmcdesc[i]->pd_phw = (struct pmc_hw *)malloc( sizeof(struct pmc_hw), M_PMC, M_WAITOK|M_ZERO); snprintf(cmn600_pmcdesc[i]->pd_descr.pd_name, 63, "CMN600_%d", i); cmn600_pmu_intr_cb(cmn600_pmcs[unit].arg, cmn600_pmu_intr); } return (0); } void pmc_cmn600_finalize(struct pmc_mdep *md) { struct pmc_classdep *pcd; int i, npmc; KASSERT(md->pmd_classdep[PMC_MDEP_CLASS_INDEX_CMN600].pcd_class == PMC_CLASS_CMN600_PMU, ("[cmn600,%d] pmc class mismatch", __LINE__)); pcd = &md->pmd_classdep[PMC_MDEP_CLASS_INDEX_CMN600]; npmc = pcd->pcd_num; for (i = 0; i < npmc; i++) { free(cmn600_pmcdesc[i]->pd_phw, M_PMC); free(cmn600_pmcdesc[i], M_PMC); } free(cmn600_pmcdesc, M_PMC); cmn600_pmcdesc = NULL; } MODULE_DEPEND(pmc, cmn600, 1, 1, 1);