Index: head/sys/dev/hwpmc/hwpmc_xscale.c =================================================================== --- head/sys/dev/hwpmc/hwpmc_xscale.c (revision 334846) +++ head/sys/dev/hwpmc/hwpmc_xscale.c (nonexistent) @@ -1,675 +0,0 @@ -/*- - * SPDX-License-Identifier: BSD-2-Clause-FreeBSD - * - * Copyright (c) 2009 Rui Paulo - * All rights reserved. - * - * 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. - * - */ - -#include -__FBSDID("$FreeBSD$"); - -#include -#include -#include -#include - -#include -/* - * Support for the Intel XScale network processors - * - * XScale processors have up to now three generations. - * - * The first generation has two PMC; the event selection, interrupt config - * and overflow flag setup are done by writing to the PMNC register. - * It also has less monitoring events than the latter generations. - * - * The second and third generatiosn have four PMCs, one register for the event - * selection, one register for the interrupt config and one register for - * the overflow flags. - */ -static int xscale_npmcs; -static int xscale_gen; /* XScale Core generation */ - -struct xscale_event_code_map { - enum pmc_event pe_ev; - uint8_t pe_code; -}; - -const struct xscale_event_code_map xscale_event_codes[] = { - /* 1st and 2nd Generation XScale cores */ - { PMC_EV_XSCALE_IC_FETCH, 0x00 }, - { PMC_EV_XSCALE_IC_MISS, 0x01 }, - { PMC_EV_XSCALE_DATA_DEPENDENCY_STALLED,0x02 }, - { PMC_EV_XSCALE_ITLB_MISS, 0x03 }, - { PMC_EV_XSCALE_DTLB_MISS, 0x04 }, - { PMC_EV_XSCALE_BRANCH_RETIRED, 0x05 }, - { PMC_EV_XSCALE_BRANCH_MISPRED, 0x06 }, - { PMC_EV_XSCALE_INSTR_RETIRED, 0x07 }, - { PMC_EV_XSCALE_DC_FULL_CYCLE, 0x08 }, - { PMC_EV_XSCALE_DC_FULL_CONTIG, 0x09 }, - { PMC_EV_XSCALE_DC_ACCESS, 0x0a }, - { PMC_EV_XSCALE_DC_MISS, 0x0b }, - { PMC_EV_XSCALE_DC_WRITEBACK, 0x0c }, - { PMC_EV_XSCALE_PC_CHANGE, 0x0d }, - /* 3rd Generation XScale cores */ - { PMC_EV_XSCALE_BRANCH_RETIRED_ALL, 0x0e }, - { PMC_EV_XSCALE_INSTR_CYCLE, 0x0f }, - { PMC_EV_XSCALE_CP_STALL, 0x17 }, - { PMC_EV_XSCALE_PC_CHANGE_ALL, 0x18 }, - { PMC_EV_XSCALE_PIPELINE_FLUSH, 0x19 }, - { PMC_EV_XSCALE_BACKEND_STALL, 0x1a }, - { PMC_EV_XSCALE_MULTIPLIER_USE, 0x1b }, - { PMC_EV_XSCALE_MULTIPLIER_STALLED, 0x1c }, - { PMC_EV_XSCALE_DATA_CACHE_STALLED, 0x1e }, - { PMC_EV_XSCALE_L2_CACHE_REQ, 0x20 }, - { PMC_EV_XSCALE_L2_CACHE_MISS, 0x23 }, - { PMC_EV_XSCALE_ADDRESS_BUS_TRANS, 0x40 }, - { PMC_EV_XSCALE_SELF_ADDRESS_BUS_TRANS, 0x41 }, - { PMC_EV_XSCALE_DATA_BUS_TRANS, 0x48 }, -}; - -/* - * Per-processor information. - */ -struct xscale_cpu { - struct pmc_hw *pc_xscalepmcs; -}; - -static struct xscale_cpu **xscale_pcpu; - -/* - * Performance Monitor Control Register - */ -static __inline uint32_t -xscale_pmnc_read(void) -{ - uint32_t reg; - - __asm __volatile("mrc p14, 0, %0, c0, c1, 0" : "=r" (reg)); - - return (reg); -} - -static __inline void -xscale_pmnc_write(uint32_t reg) -{ - __asm __volatile("mcr p14, 0, %0, c0, c1, 0" : : "r" (reg)); -} - -/* - * Clock Counter Register - */ -static __inline uint32_t -xscale_ccnt_read(void) -{ - uint32_t reg; - - __asm __volatile("mrc p14, 0, %0, c1, c1, 0" : "=r" (reg)); - - return (reg); -} - -static __inline void -xscale_ccnt_write(uint32_t reg) -{ - __asm __volatile("mcr p14, 0, %0, c1, c1, 0" : : "r" (reg)); -} - -/* - * Interrupt Enable Register - */ -static __inline uint32_t -xscale_inten_read(void) -{ - uint32_t reg; - - __asm __volatile("mrc p14, 0, %0, c4, c1, 0" : "=r" (reg)); - - return (reg); -} - -static __inline void -xscale_inten_write(uint32_t reg) -{ - __asm __volatile("mcr p14, 0, %0, c4, c1, 0" : : "r" (reg)); -} - -/* - * Overflow Flag Register - */ -static __inline uint32_t -xscale_flag_read(void) -{ - uint32_t reg; - - __asm __volatile("mrc p14, 0, %0, c5, c1, 0" : "=r" (reg)); - - return (reg); -} - -static __inline void -xscale_flag_write(uint32_t reg) -{ - __asm __volatile("mcr p14, 0, %0, c5, c1, 0" : : "r" (reg)); -} - -/* - * Event Selection Register - */ -static __inline uint32_t -xscale_evtsel_read(void) -{ - uint32_t reg; - - __asm __volatile("mrc p14, 0, %0, c8, c1, 0" : "=r" (reg)); - - return (reg); -} - -static __inline void -xscale_evtsel_write(uint32_t reg) -{ - __asm __volatile("mcr p14, 0, %0, c8, c1, 0" : : "r" (reg)); -} - -/* - * Performance Count Register N - */ -static uint32_t -xscale_pmcn_read(unsigned int pmc) -{ - uint32_t reg = 0; - - KASSERT(pmc < 4, ("[xscale,%d] illegal PMC number %d", __LINE__, pmc)); - - switch (pmc) { - case 0: - __asm __volatile("mrc p14, 0, %0, c0, c2, 0" : "=r" (reg)); - break; - case 1: - __asm __volatile("mrc p14, 0, %0, c1, c2, 0" : "=r" (reg)); - break; - case 2: - __asm __volatile("mrc p14, 0, %0, c2, c2, 0" : "=r" (reg)); - break; - case 3: - __asm __volatile("mrc p14, 0, %0, c3, c2, 0" : "=r" (reg)); - break; - } - - return (reg); -} - -static uint32_t -xscale_pmcn_write(unsigned int pmc, uint32_t reg) -{ - - KASSERT(pmc < 4, ("[xscale,%d] illegal PMC number %d", __LINE__, pmc)); - - switch (pmc) { - case 0: - __asm __volatile("mcr p14, 0, %0, c0, c2, 0" : : "r" (reg)); - break; - case 1: - __asm __volatile("mcr p14, 0, %0, c1, c2, 0" : : "r" (reg)); - break; - case 2: - __asm __volatile("mcr p14, 0, %0, c2, c2, 0" : : "r" (reg)); - break; - case 3: - __asm __volatile("mcr p14, 0, %0, c3, c2, 0" : : "r" (reg)); - break; - } - - return (reg); -} - -static int -xscale_allocate_pmc(int cpu, int ri, struct pmc *pm, - const struct pmc_op_pmcallocate *a) -{ - enum pmc_event pe; - uint32_t caps, config; - int i; - - KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), - ("[xscale,%d] illegal CPU value %d", __LINE__, cpu)); - KASSERT(ri >= 0 && ri < xscale_npmcs, - ("[xscale,%d] illegal row index %d", __LINE__, ri)); - - caps = a->pm_caps; - if (a->pm_class != PMC_CLASS_XSCALE) - return (EINVAL); - pe = a->pm_ev; - for (i = 0; i < nitems(xscale_event_codes); i++) { - if (xscale_event_codes[i].pe_ev == pe) { - config = xscale_event_codes[i].pe_code; - break; - } - } - if (i == nitems(xscale_event_codes)) - return EINVAL; - /* Generation 1 has fewer events */ - if (xscale_gen == 1 && i > PMC_EV_XSCALE_PC_CHANGE) - return EINVAL; - pm->pm_md.pm_xscale.pm_xscale_evsel = config; - - PMCDBG2(MDP,ALL,2,"xscale-allocate ri=%d -> config=0x%x", ri, config); - - return 0; -} - - -static int -xscale_read_pmc(int cpu, int ri, pmc_value_t *v) -{ - struct pmc *pm; - pmc_value_t tmp; - - KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), - ("[xscale,%d] illegal CPU value %d", __LINE__, cpu)); - KASSERT(ri >= 0 && ri < xscale_npmcs, - ("[xscale,%d] illegal row index %d", __LINE__, ri)); - - pm = xscale_pcpu[cpu]->pc_xscalepmcs[ri].phw_pmc; - tmp = xscale_pmcn_read(ri); - PMCDBG2(MDP,REA,2,"xscale-read id=%d -> %jd", ri, tmp); - if (PMC_IS_SAMPLING_MODE(PMC_TO_MODE(pm))) - *v = XSCALE_PERFCTR_VALUE_TO_RELOAD_COUNT(tmp); - else - *v = tmp; - - return 0; -} - -static int -xscale_write_pmc(int cpu, int ri, pmc_value_t v) -{ - struct pmc *pm; - - KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), - ("[xscale,%d] illegal CPU value %d", __LINE__, cpu)); - KASSERT(ri >= 0 && ri < xscale_npmcs, - ("[xscale,%d] illegal row-index %d", __LINE__, ri)); - - pm = xscale_pcpu[cpu]->pc_xscalepmcs[ri].phw_pmc; - - if (PMC_IS_SAMPLING_MODE(PMC_TO_MODE(pm))) - v = XSCALE_RELOAD_COUNT_TO_PERFCTR_VALUE(v); - - PMCDBG3(MDP,WRI,1,"xscale-write cpu=%d ri=%d v=%jx", cpu, ri, v); - - xscale_pmcn_write(ri, v); - - return 0; -} - -static int -xscale_config_pmc(int cpu, int ri, struct pmc *pm) -{ - struct pmc_hw *phw; - - PMCDBG3(MDP,CFG,1, "cpu=%d ri=%d pm=%p", cpu, ri, pm); - - KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), - ("[xscale,%d] illegal CPU value %d", __LINE__, cpu)); - KASSERT(ri >= 0 && ri < xscale_npmcs, - ("[xscale,%d] illegal row-index %d", __LINE__, ri)); - - phw = &xscale_pcpu[cpu]->pc_xscalepmcs[ri]; - - KASSERT(pm == NULL || phw->phw_pmc == NULL, - ("[xscale,%d] pm=%p phw->pm=%p hwpmc not unconfigured", - __LINE__, pm, phw->phw_pmc)); - - phw->phw_pmc = pm; - - return 0; -} - -static int -xscale_start_pmc(int cpu, int ri) -{ - uint32_t pmnc, config, evtsel; - struct pmc *pm; - struct pmc_hw *phw; - - phw = &xscale_pcpu[cpu]->pc_xscalepmcs[ri]; - pm = phw->phw_pmc; - config = pm->pm_md.pm_xscale.pm_xscale_evsel; - - /* - * Configure the event selection. - * - * On the XScale 2nd Generation there's no EVTSEL register. - */ - if (xscale_npmcs == 2) { - pmnc = xscale_pmnc_read(); - switch (ri) { - case 0: - pmnc &= ~XSCALE_PMNC_EVT0_MASK; - pmnc |= (config << 12) & XSCALE_PMNC_EVT0_MASK; - break; - case 1: - pmnc &= ~XSCALE_PMNC_EVT1_MASK; - pmnc |= (config << 20) & XSCALE_PMNC_EVT1_MASK; - break; - default: - /* XXX */ - break; - } - xscale_pmnc_write(pmnc); - } else { - evtsel = xscale_evtsel_read(); - switch (ri) { - case 0: - evtsel &= ~XSCALE_EVTSEL_EVT0_MASK; - evtsel |= config & XSCALE_EVTSEL_EVT0_MASK; - break; - case 1: - evtsel &= ~XSCALE_EVTSEL_EVT1_MASK; - evtsel |= (config << 8) & XSCALE_EVTSEL_EVT1_MASK; - break; - case 2: - evtsel &= ~XSCALE_EVTSEL_EVT2_MASK; - evtsel |= (config << 16) & XSCALE_EVTSEL_EVT2_MASK; - break; - case 3: - evtsel &= ~XSCALE_EVTSEL_EVT3_MASK; - evtsel |= (config << 24) & XSCALE_EVTSEL_EVT3_MASK; - break; - default: - /* XXX */ - break; - } - xscale_evtsel_write(evtsel); - } - /* - * Enable the PMC. - * - * Note that XScale provides only one bit to enable/disable _all_ - * performance monitoring units. - */ - pmnc = xscale_pmnc_read(); - pmnc |= XSCALE_PMNC_ENABLE; - xscale_pmnc_write(pmnc); - - return 0; -} - -static int -xscale_stop_pmc(int cpu, int ri) -{ - uint32_t pmnc, evtsel; - struct pmc *pm; - struct pmc_hw *phw; - - phw = &xscale_pcpu[cpu]->pc_xscalepmcs[ri]; - pm = phw->phw_pmc; - - /* - * Disable the PMCs. - * - * Note that XScale provides only one bit to enable/disable _all_ - * performance monitoring units. - */ - pmnc = xscale_pmnc_read(); - pmnc &= ~XSCALE_PMNC_ENABLE; - xscale_pmnc_write(pmnc); - /* - * A value of 0xff makes the corresponding PMU go into - * power saving mode. - */ - if (xscale_npmcs == 2) { - pmnc = xscale_pmnc_read(); - switch (ri) { - case 0: - pmnc |= XSCALE_PMNC_EVT0_MASK; - break; - case 1: - pmnc |= XSCALE_PMNC_EVT1_MASK; - break; - default: - /* XXX */ - break; - } - xscale_pmnc_write(pmnc); - } else { - evtsel = xscale_evtsel_read(); - switch (ri) { - case 0: - evtsel |= XSCALE_EVTSEL_EVT0_MASK; - break; - case 1: - evtsel |= XSCALE_EVTSEL_EVT1_MASK; - break; - case 2: - evtsel |= XSCALE_EVTSEL_EVT2_MASK; - break; - case 3: - evtsel |= XSCALE_EVTSEL_EVT3_MASK; - break; - default: - /* XXX */ - break; - } - xscale_evtsel_write(evtsel); - } - - return 0; -} - -static int -xscale_release_pmc(int cpu, int ri, struct pmc *pmc) -{ - struct pmc_hw *phw; - - KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), - ("[xscale,%d] illegal CPU value %d", __LINE__, cpu)); - KASSERT(ri >= 0 && ri < xscale_npmcs, - ("[xscale,%d] illegal row-index %d", __LINE__, ri)); - - phw = &xscale_pcpu[cpu]->pc_xscalepmcs[ri]; - KASSERT(phw->phw_pmc == NULL, - ("[xscale,%d] PHW pmc %p non-NULL", __LINE__, phw->phw_pmc)); - - return 0; -} - -static int -xscale_intr(int cpu, struct trapframe *tf) -{ - printf("intr\n"); - return 0; -} - -static int -xscale_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc) -{ - int error; - struct pmc_hw *phw; - char xscale_name[PMC_NAME_MAX]; - - KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), - ("[xscale,%d], illegal CPU %d", __LINE__, cpu)); - KASSERT(ri >= 0 && ri < xscale_npmcs, - ("[xscale,%d] row-index %d out of range", __LINE__, ri)); - - phw = &xscale_pcpu[cpu]->pc_xscalepmcs[ri]; - snprintf(xscale_name, sizeof(xscale_name), "XSCALE-%d", ri); - if ((error = copystr(xscale_name, pi->pm_name, PMC_NAME_MAX, - NULL)) != 0) - return error; - pi->pm_class = PMC_CLASS_XSCALE; - 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); -} - -static int -xscale_get_config(int cpu, int ri, struct pmc **ppm) -{ - *ppm = xscale_pcpu[cpu]->pc_xscalepmcs[ri].phw_pmc; - - return 0; -} - -/* - * XXX don't know what we should do here. - */ -static int -xscale_switch_in(struct pmc_cpu *pc, struct pmc_process *pp) -{ - return 0; -} - -static int -xscale_switch_out(struct pmc_cpu *pc, struct pmc_process *pp) -{ - return 0; -} - -static int -xscale_pcpu_init(struct pmc_mdep *md, int cpu) -{ - int first_ri, i; - struct pmc_cpu *pc; - struct xscale_cpu *pac; - struct pmc_hw *phw; - - KASSERT(cpu >= 0 && cpu < pmc_cpu_max(), - ("[xscale,%d] wrong cpu number %d", __LINE__, cpu)); - PMCDBG1(MDP,INI,1,"xscale-init cpu=%d", cpu); - - xscale_pcpu[cpu] = pac = malloc(sizeof(struct xscale_cpu), M_PMC, - M_WAITOK|M_ZERO); - pac->pc_xscalepmcs = malloc(sizeof(struct pmc_hw) * xscale_npmcs, - M_PMC, M_WAITOK|M_ZERO); - pc = pmc_pcpu[cpu]; - first_ri = md->pmd_classdep[PMC_MDEP_CLASS_INDEX_XSCALE].pcd_ri; - KASSERT(pc != NULL, ("[xscale,%d] NULL per-cpu pointer", __LINE__)); - - for (i = 0, phw = pac->pc_xscalepmcs; i < xscale_npmcs; i++, phw++) { - phw->phw_state = PMC_PHW_FLAG_IS_ENABLED | - PMC_PHW_CPU_TO_STATE(cpu) | PMC_PHW_INDEX_TO_STATE(i); - phw->phw_pmc = NULL; - pc->pc_hwpmcs[i + first_ri] = phw; - } - - /* - * Disable and put the PMUs into power save mode. - */ - if (xscale_npmcs == 2) { - xscale_pmnc_write(XSCALE_PMNC_EVT1_MASK | - XSCALE_PMNC_EVT0_MASK); - } else { - xscale_evtsel_write(XSCALE_EVTSEL_EVT3_MASK | - XSCALE_EVTSEL_EVT2_MASK | XSCALE_EVTSEL_EVT1_MASK | - XSCALE_EVTSEL_EVT0_MASK); - } - - return 0; -} - -static int -xscale_pcpu_fini(struct pmc_mdep *md, int cpu) -{ - return 0; -} - -struct pmc_mdep * -pmc_xscale_initialize() -{ - struct pmc_mdep *pmc_mdep; - struct pmc_classdep *pcd; - uint32_t idreg; - - /* Get the Core Generation from CP15 */ - __asm __volatile("mrc p15, 0, %0, c0, c0, 0" : "=r" (idreg)); - xscale_gen = (idreg >> 13) & 0x3; - switch (xscale_gen) { - case 1: - xscale_npmcs = 2; - break; - case 2: - case 3: - xscale_npmcs = 4; - break; - default: - printf("%s: unknown XScale core generation\n", __func__); - return (NULL); - } - PMCDBG1(MDP,INI,1,"xscale-init npmcs=%d", xscale_npmcs); - - /* - * Allocate space for pointers to PMC HW descriptors and for - * the MDEP structure used by MI code. - */ - xscale_pcpu = malloc(sizeof(struct xscale_cpu *) * pmc_cpu_max(), M_PMC, - M_WAITOK|M_ZERO); - - /* Just one class */ - pmc_mdep = pmc_mdep_alloc(1); - - pmc_mdep->pmd_cputype = PMC_CPU_INTEL_XSCALE; - - pcd = &pmc_mdep->pmd_classdep[PMC_MDEP_CLASS_INDEX_XSCALE]; - pcd->pcd_caps = XSCALE_PMC_CAPS; - pcd->pcd_class = PMC_CLASS_XSCALE; - pcd->pcd_num = xscale_npmcs; - pcd->pcd_ri = pmc_mdep->pmd_npmc; - pcd->pcd_width = 32; - - pcd->pcd_allocate_pmc = xscale_allocate_pmc; - pcd->pcd_config_pmc = xscale_config_pmc; - pcd->pcd_pcpu_fini = xscale_pcpu_fini; - pcd->pcd_pcpu_init = xscale_pcpu_init; - pcd->pcd_describe = xscale_describe; - pcd->pcd_get_config = xscale_get_config; - pcd->pcd_read_pmc = xscale_read_pmc; - pcd->pcd_release_pmc = xscale_release_pmc; - pcd->pcd_start_pmc = xscale_start_pmc; - pcd->pcd_stop_pmc = xscale_stop_pmc; - pcd->pcd_write_pmc = xscale_write_pmc; - - pmc_mdep->pmd_intr = xscale_intr; - pmc_mdep->pmd_switch_in = xscale_switch_in; - pmc_mdep->pmd_switch_out = xscale_switch_out; - - pmc_mdep->pmd_npmc += xscale_npmcs; - - return (pmc_mdep); -} - -void -pmc_xscale_finalize(struct pmc_mdep *md) -{ -} Property changes on: head/sys/dev/hwpmc/hwpmc_xscale.c ___________________________________________________________________ Deleted: svn:eol-style ## -1 +0,0 ## -native \ No newline at end of property Deleted: svn:keywords ## -1 +0,0 ## -FreeBSD=%H \ No newline at end of property Deleted: svn:mime-type ## -1 +0,0 ## -text/plain \ No newline at end of property