pfmlib_cell.c

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/*
 * pfmlib_cell.c : support for the Cell PMU family
 *
 * Copyright (c) 2007 TOSHIBA CORPORATION based on code from
 * Copyright (c) 2001-2006 Hewlett-Packard Development Company, L.P.
 * Contributed by Stephane Eranian <eranian@hpl.hp.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
#include <sys/types.h>
#include <ctype.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
 
/* public headers */
#include <perfmon/pfmlib_cell.h>
 
/* private headers */
#include "pfmlib_priv.h"    /* library private */
#include "pfmlib_cell_priv.h"   /* architecture private */
#include "cell_events.h"    /* PMU private */
 
#define SIGNAL_TYPE_CYCLES      0
#define PM_COUNTER_CTRL_CYLES   0x42C00000U
 
#define PFM_CELL_NUM_PMCS   24
#define PFM_CELL_EVENT_MIN  1
#define PFM_CELL_EVENT_MAX  8
#define PMX_MIN_NUM     1
#define PMX_MAX_NUM     8
#define PFM_CELL_16BIT_CNTR_EVENT_MAX 8
#define PFM_CELL_32BIT_CNTR_EVENT_MAX 4
 
#define COMMON_REG_NUMS     8
 
#define ENABLE_WORD0        0
#define ENABLE_WORD1        1
#define ENABLE_WORD2        2
 
#define PFM_CELL_GRP_CONTROL_REG_GRP0_BIT   30
#define PFM_CELL_GRP_CONTROL_REG_GRP1_BIT   28
#define PFM_CELL_BASE_WORD_UNIT_FIELD_BIT   24
#define PFM_CELL_WORD_UNIT_FIELD_WIDTH      2
#define PFM_CELL_MAX_WORD_NUMBER        3
#define PFM_CELL_COUNTER_CONTROL_GRP1       0x80000000U
#define PFM_CELL_DEFAULT_TRIGGER_EVENT_UNIT     0x00555500U
#define PFM_CELL_PM_CONTROL_16BIT_CNTR_MASK     0x01E00000U
#define PFM_CELL_PM_CONTROL_PPU_CNTR_MODE_PROBLEM    0x00080000U
#define PFM_CELL_PM_CONTROL_PPU_CNTR_MODE_SUPERVISOR 0x00000000U
#define PFM_CELL_PM_CONTROL_PPU_CNTR_MODE_HYPERVISOR 0x00040000U
#define PFM_CELL_PM_CONTROL_PPU_CNTR_MODE_ALL        0x000C0000U
#define PFM_CELL_PM_CONTROL_PPU_CNTR_MODE_MASK       0x000C0000U
 
#define ONLY_WORD(x) \
    ((x == WORD_0_ONLY)||(x == WORD_2_ONLY)) ? x : 0
 
struct pfm_cell_signal_group_desc {
    unsigned int        signal_type;
    unsigned int        word_type;
    unsigned long long  word;
    unsigned long long  freq;
    unsigned int            subunit;
};
 
#define swap_int(num1, num2) do {   \
    int tmp = num1;         \
    num1 = num2;            \
    num2 = tmp;         \
} while(0)
 
static int
pfm_cell_detect(void)
{
    int ret;
    char buffer[128];
    
    ret = __pfm_getcpuinfo_attr("cpu", buffer, sizeof(buffer));
    if (ret == -1) {
        return PFMLIB_ERR_NOTSUPP;
    }
    if (strcmp(buffer, "Cell Broadband Engine, altivec supported")) {
        return PFMLIB_ERR_NOTSUPP;
    }
 
    return PFMLIB_SUCCESS;
}
 
static int
get_pmx_offset(int pmx_num, unsigned int *pmx_ctrl_bits)
{
    /* pmx_num==0 -> not specified
     * pmx_num==1 -> pm0
     *            :
     * pmx_num==8 -> pm7
     */
    int i = 0;
    int offset;
    
    if ((pmx_num >= PMX_MIN_NUM) && (pmx_num <= PMX_MAX_NUM)) {
        /* offset is specified */
        offset = (pmx_num - 1);
        
        if ((~*pmx_ctrl_bits >> offset) & 0x1) {
            *pmx_ctrl_bits |= (0x1 << offset);
            return offset;
        } else {
            /* offset is used */
            return PFMLIB_ERR_INVAL;
        }
    } else if (pmx_num == 0){
        /* offset is not specified */
        while (((*pmx_ctrl_bits >> i) & 0x1) && (i < PMX_MAX_NUM)) {
            i++;
        }
        *pmx_ctrl_bits |= (0x1 << i);
        return i;
    }
    /* pmx_num is invalid */
    return PFMLIB_ERR_INVAL;
}
 
static unsigned long long
search_enable_word(int word)
{
    unsigned long long count = 0;
    
    while ((~word) & 0x1) {
        count++;
        word >>= 1;
    }
    return count;
}
 
static int get_count_bit(unsigned int type)
{
    int count = 0;
 
    while(type) {
        if (type & 1) {
            count++;
        }
        type >>= 1;
    }
    return count;
}
 
 
static int
get_debug_bus_word(struct pfm_cell_signal_group_desc *group0, struct pfm_cell_signal_group_desc *group1)
{
    unsigned int word_type0, word_type1;
 
    /* search enable word  */
    word_type0 = group0->word_type;
    word_type1 = group1->word_type;
 
    if (group1->signal_type == NONE_SIGNAL) {
        group0->word = search_enable_word(word_type0);
        goto found;
    }
 
    /* swap */
    if ((get_count_bit(word_type0) > get_count_bit(word_type1)) ||
        (group0->freq == PFM_CELL_PME_FREQ_SPU)) {
        swap_int(group0->signal_type, group1->signal_type);
        swap_int(group0->freq, group1->freq);
        swap_int(group0->word_type, group1->word_type);
        swap_int(group0->subunit, group1->subunit);
        swap_int(word_type0, word_type1);
    }
 
    if ((ONLY_WORD(word_type0) != 0) && (word_type0 == word_type1)) {
        return PFMLIB_ERR_INVAL;
    }
 
    if (ONLY_WORD(word_type0)) {
        group0->word = search_enable_word(ONLY_WORD(word_type0));
 
        word_type1 &= ~(1UL << (group0->word));
        group1->word = search_enable_word(word_type1);
    } else if (ONLY_WORD(word_type1)) {
        group1->word = search_enable_word(ONLY_WORD(word_type1));
 
        word_type0 &= ~(1UL << (group1->word));
        group0->word = search_enable_word(word_type0);
    } else {
        group0->word = ENABLE_WORD0;
        if (word_type1 == WORD_0_AND_1) {
            group1->word = ENABLE_WORD1;
        } else if(word_type1 == WORD_0_AND_2) {
            group1->word = ENABLE_WORD2;
        } else {
            return PFMLIB_ERR_INVAL;
        }
    }
 
found:
    return PFMLIB_SUCCESS;
}
 
static unsigned int get_signal_type(unsigned long long event_code) 
{
    return (event_code & 0x00000000FFFFFFFFULL) / 100;
}   
 
static unsigned int get_signal_bit(unsigned long long event_code) 
{
    return (event_code & 0x00000000FFFFFFFFULL) % 100;
}   
 
static int is_spe_signal_group(unsigned int signal_type)
{
    if (41 <= signal_type && signal_type <= 56) {
        return 1;
    } else {
        return 0;
    }
}
 
static int
check_signal_type(pfmlib_input_param_t *inp,
          pfmlib_cell_input_param_t *mod_in,
          struct pfm_cell_signal_group_desc *group0,
          struct pfm_cell_signal_group_desc *group1)
{
    pfmlib_event_t *e;
    unsigned int event_cnt;
    int signal_cnt = 0;
    int i;
    int cycles_signal_cnt = 0;
    unsigned int signal_type, subunit;
 
    e       = inp->pfp_events;
    event_cnt   = inp->pfp_event_count;
 
    for(i = 0; i < event_cnt; i++) {
        signal_type = get_signal_type(cell_pe[e[i].event].pme_code);
 
        if ((signal_type == SIGNAL_SPU_TRIGGER)
            || (signal_type == SIGNAL_SPU_EVENT)) {
            continue;
        }
 
        if (signal_type == SIGNAL_TYPE_CYCLES) {
            cycles_signal_cnt = 1;
            continue;
        }
 
        subunit = 0;
        if (is_spe_signal_group(signal_type)) {
            subunit = mod_in->pfp_cell_counters[i].spe_subunit;
        }
        switch(signal_cnt) {
            case 0:
                group0->signal_type = signal_type;
                group0->word_type = cell_pe[e[i].event].pme_enable_word;
                group0->freq = cell_pe[e[i].event].pme_freq;
                group0->subunit = subunit;
                signal_cnt++;
                break;
                
            case 1:
                if ((group0->signal_type != signal_type) ||
                    (is_spe_signal_group(signal_type) && group0->subunit != subunit)) {
                    group1->signal_type = signal_type;
                    group1->word_type = cell_pe[e[i].event].pme_enable_word;
                    group1->freq = cell_pe[e[i].event].pme_freq;
                    group1->subunit = subunit;
                    signal_cnt++;
                    
                }
                break;
                
            case 2:
                if ((group0->signal_type != signal_type)
                  && (group1->signal_type != signal_type)) {
                    DPRINT("signal count is invalid\n");
                    return PFMLIB_ERR_INVAL;
                }
                break;
                
            default:
                DPRINT("signal count is invalid\n");
                return PFMLIB_ERR_INVAL;
        }
    }
    return (signal_cnt + cycles_signal_cnt);
}
 
/*
 * The assignment between the privilege leve options
 * and ppu-count-mode field in pm_control register.
 *
 * option         ppu count mode(pm_control)
 * ---------------------------------
 * -u(-3)        0b10 : Problem mode
 * -k(-0)        0b00 : Supervisor mode
 * -1            0b00 : Supervisor mode
 * -2            0b01 : Hypervisor mode
 * two options   0b11 : Any mode
 *
 * Note : Hypervisor-mode and Any-mode don't work on PS3.
 *
 */
static unsigned int get_ppu_count_mode(unsigned int plm)
{
    unsigned int ppu_count_mode = 0;
 
    switch (plm) {
    case PFM_PLM0:
    case PFM_PLM1:
        ppu_count_mode = PFM_CELL_PM_CONTROL_PPU_CNTR_MODE_SUPERVISOR;
        break;
 
    case PFM_PLM2:
        ppu_count_mode = PFM_CELL_PM_CONTROL_PPU_CNTR_MODE_HYPERVISOR;
        break;
 
    case PFM_PLM3:
        ppu_count_mode = PFM_CELL_PM_CONTROL_PPU_CNTR_MODE_PROBLEM;
        break;
 
    default :
        ppu_count_mode = PFM_CELL_PM_CONTROL_PPU_CNTR_MODE_ALL;
        break;
    }
    return ppu_count_mode;
}
 
static int
pfm_cell_dispatch_counters(pfmlib_input_param_t *inp,
               pfmlib_cell_input_param_t *mod_in,
               pfmlib_output_param_t *outp)
{
    pfmlib_event_t *e;
    pfmlib_reg_t *pc, *pd;
    unsigned int event_cnt;
    unsigned int signal_cnt = 0, pmcs_cnt = 0;
    unsigned int signal_type;
    unsigned long long signal_bit;
    struct pfm_cell_signal_group_desc group[2];
    int pmx_offset = 0;
    int i, ret;
    int input_control, polarity, count_cycle, count_enable;
    unsigned long long subunit;
    int shift0, shift1;
    unsigned int pmx_ctrl_bits;
    int max_event_cnt = PFM_CELL_32BIT_CNTR_EVENT_MAX;
    
    count_enable = 1;
 
    group[0].signal_type = group[1].signal_type = NONE_SIGNAL;
    group[0].word = group[1].word = 0L;
    group[0].freq = group[1].freq = 0L;
    group[0].subunit = group[1].subunit = 0;
    group[0].word_type = group[1].word_type = WORD_NONE;
 
    event_cnt = inp->pfp_event_count;
    e = inp->pfp_events;
    pc = outp->pfp_pmcs;
    pd = outp->pfp_pmds;
 
    /* check event_cnt */
    if (mod_in->control & PFM_CELL_PM_CONTROL_16BIT_CNTR_MASK)
        max_event_cnt = PFM_CELL_16BIT_CNTR_EVENT_MAX;
    if (event_cnt < PFM_CELL_EVENT_MIN)
        return PFMLIB_ERR_NOTFOUND;
    if (event_cnt > max_event_cnt)
        return PFMLIB_ERR_TOOMANY;
 
    /* check signal type */
    signal_cnt = check_signal_type(inp, mod_in, &group[0], &group[1]);
    if (signal_cnt == PFMLIB_ERR_INVAL)
        return PFMLIB_ERR_NOASSIGN;
 
    /* decide debug_bus word */
    if (signal_cnt != 0 && group[0].signal_type != NONE_SIGNAL) {
        ret = get_debug_bus_word(&group[0], &group[1]);
        if (ret != PFMLIB_SUCCESS)
            return PFMLIB_ERR_NOASSIGN;
    }
 
    /* common register setting */
    pc[pmcs_cnt].reg_num    = REG_GROUP_CONTROL;
    if (signal_cnt == 1) {
        pc[pmcs_cnt].reg_value =
            group[0].word << PFM_CELL_GRP_CONTROL_REG_GRP0_BIT;
    } else if (signal_cnt == 2) {
        pc[pmcs_cnt].reg_value =
            (group[0].word << PFM_CELL_GRP_CONTROL_REG_GRP0_BIT) |
            (group[1].word << PFM_CELL_GRP_CONTROL_REG_GRP1_BIT);
    }
    pmcs_cnt++;
 
    pc[pmcs_cnt].reg_num    = REG_DEBUG_BUS_CONTROL;
    if (signal_cnt == 1) {
        shift0 = PFM_CELL_BASE_WORD_UNIT_FIELD_BIT +
            ((PFM_CELL_MAX_WORD_NUMBER - group[0].word) *
             PFM_CELL_WORD_UNIT_FIELD_WIDTH);
        pc[pmcs_cnt].reg_value = group[0].freq << shift0;
    } else if (signal_cnt == 2) {
        shift0 = PFM_CELL_BASE_WORD_UNIT_FIELD_BIT +
            ((PFM_CELL_MAX_WORD_NUMBER - group[0].word) *
             PFM_CELL_WORD_UNIT_FIELD_WIDTH);
        shift1 = PFM_CELL_BASE_WORD_UNIT_FIELD_BIT +
            ((PFM_CELL_MAX_WORD_NUMBER - group[1].word) *
             PFM_CELL_WORD_UNIT_FIELD_WIDTH);
        pc[pmcs_cnt].reg_value = (group[0].freq << shift0) |
            (group[1].freq << shift1);
    }
    pc[pmcs_cnt].reg_value |= PFM_CELL_DEFAULT_TRIGGER_EVENT_UNIT;
    pmcs_cnt++;
 
    pc[pmcs_cnt].reg_num    = REG_TRACE_ADDRESS;
    pc[pmcs_cnt].reg_value  = 0;
    pmcs_cnt++;
 
    pc[pmcs_cnt].reg_num    = REG_EXT_TRACE_TIMER;
    pc[pmcs_cnt].reg_value  = 0;
    pmcs_cnt++;
 
    pc[pmcs_cnt].reg_num    = REG_PM_STATUS;
    pc[pmcs_cnt].reg_value  = 0;
    pmcs_cnt++;
 
    pc[pmcs_cnt].reg_num    = REG_PM_CONTROL;
    pc[pmcs_cnt].reg_value  =
        (mod_in->control & ~PFM_CELL_PM_CONTROL_PPU_CNTR_MODE_MASK) |
        get_ppu_count_mode(inp->pfp_dfl_plm);
    pmcs_cnt++;
 
    pc[pmcs_cnt].reg_num    = REG_PM_INTERVAL;
    pc[pmcs_cnt].reg_value  = mod_in->interval;
    pmcs_cnt++;
 
    pc[pmcs_cnt].reg_num    = REG_PM_START_STOP;
    pc[pmcs_cnt].reg_value  = mod_in->triggers;
    pmcs_cnt++;
 
    pmx_ctrl_bits = 0;
 
    /* pmX register setting */
    for(i = 0; i < event_cnt; i++) {
        /* PMX_CONTROL */
        pmx_offset = get_pmx_offset(mod_in->pfp_cell_counters[i].pmX_control_num,
                        &pmx_ctrl_bits);
        if (pmx_offset == PFMLIB_ERR_INVAL) {
            DPRINT("pmX already used\n");
            return PFMLIB_ERR_INVAL;
        }
 
        signal_type = get_signal_type(cell_pe[e[i].event].pme_code);
        if (signal_type == SIGNAL_TYPE_CYCLES) {
            pc[pmcs_cnt].reg_value  = PM_COUNTER_CTRL_CYLES;
            pc[pmcs_cnt].reg_num    = REG_PM0_CONTROL + pmx_offset;
            pmcs_cnt++;
            pc[pmcs_cnt].reg_value  = cell_pe[e[i].event].pme_code;
            pc[pmcs_cnt].reg_num    = REG_PM0_EVENT + pmx_offset;
            pmcs_cnt++;
            pd[i].reg_num = pmx_offset;
            pd[i].reg_value = 0;
            continue;
        }
 
        switch(cell_pe[e[i].event].pme_type) {
            case COUNT_TYPE_BOTH_TYPE:
            case COUNT_TYPE_CUMULATIVE_LEN:
            case COUNT_TYPE_MULTI_CYCLE:
            case COUNT_TYPE_SINGLE_CYCLE:
                count_cycle = 1;
                break;
                
            case COUNT_TYPE_OCCURRENCE:
                count_cycle = 0;
                break;
                
            default:
                return PFMLIB_ERR_INVAL;
        }
 
        signal_bit = get_signal_bit(cell_pe[e[i].event].pme_code);
        polarity = mod_in->pfp_cell_counters[i].polarity;
        input_control = mod_in->pfp_cell_counters[i].input_control;
        subunit = 0;
        if (is_spe_signal_group(signal_type)) {
            subunit = mod_in->pfp_cell_counters[i].spe_subunit;
        }
        
        pc[pmcs_cnt].reg_value  = ( (signal_bit << (31 - 5))
                      | (input_control << (31 - 6))
                      | (polarity << (31 - 7))
                      | (count_cycle << (31 - 8))
                      | (count_enable << (31 - 9)) );
        pc[pmcs_cnt].reg_num    = REG_PM0_CONTROL + pmx_offset;
 
        if (signal_type == group[1].signal_type && subunit == group[1].subunit) {
            pc[pmcs_cnt].reg_value |= PFM_CELL_COUNTER_CONTROL_GRP1;
        }
 
        pmcs_cnt++;
 
        /* PMX_EVENT */
        pc[pmcs_cnt].reg_num    = REG_PM0_EVENT + pmx_offset;
 
        /* debug bus word setting */
        if (signal_type == group[0].signal_type && subunit == group[0].subunit) {
            pc[pmcs_cnt].reg_value  = (cell_pe[e[i].event].pme_code |
                           (group[0].word << 48) | (subunit << 32));
        } else if (signal_type == group[1].signal_type && subunit == group[1].subunit) {
            pc[pmcs_cnt].reg_value  = (cell_pe[e[i].event].pme_code |
                           (group[1].word << 48) | (subunit << 32));
        } else if ((signal_type == SIGNAL_SPU_TRIGGER)
                   || (signal_type == SIGNAL_SPU_EVENT)) {
            pc[pmcs_cnt].reg_value  = cell_pe[e[i].event].pme_code | (subunit << 32);
        } else {
            return PFMLIB_ERR_INVAL;
        }
        pmcs_cnt++;
 
        /* pmd setting */
        pd[i].reg_num = pmx_offset;
        pd[i].reg_value = 0;
    }
 
    outp->pfp_pmc_count = pmcs_cnt;
    outp->pfp_pmd_count = event_cnt;
 
    return PFMLIB_SUCCESS;
}
 
static int
pfm_cell_dispatch_events(pfmlib_input_param_t *inp, void *model_in, pfmlib_output_param_t *outp, void *model_out)
{
    pfmlib_cell_input_param_t *mod_in  = (pfmlib_cell_input_param_t *)model_in;
        pfmlib_cell_input_param_t default_model_in;
    int i;
 
    if (model_in) {
        mod_in = (pfmlib_cell_input_param_t *)model_in;
    } else {
        mod_in = &default_model_in;
        mod_in->control = 0x80000000;
        mod_in->interval = 0;
        mod_in->triggers = 0;
        for (i = 0; i < PMU_CELL_NUM_COUNTERS; i++) {
            mod_in->pfp_cell_counters[i].pmX_control_num = 0;
            mod_in->pfp_cell_counters[i].spe_subunit = 0;
            mod_in->pfp_cell_counters[i].polarity = 1;
            mod_in->pfp_cell_counters[i].input_control = 0;
            mod_in->pfp_cell_counters[i].cnt_mask = 0;
            mod_in->pfp_cell_counters[i].flags = 0;
        }
    }
 
    return pfm_cell_dispatch_counters(inp, mod_in, outp);
}
 
static int
pfm_cell_get_event_code(unsigned int i, unsigned int cnt, int *code)
{
//  if (cnt != PFMLIB_CNT_FIRST && cnt > 2) {
    if (cnt != PFMLIB_CNT_FIRST && cnt > cell_support.num_cnt) {
        return PFMLIB_ERR_INVAL;
    }
 
    *code = cell_pe[i].pme_code;
 
    return PFMLIB_SUCCESS;
}
 
static void
pfm_cell_get_event_counters(unsigned int j, pfmlib_regmask_t *counters)
{
    unsigned int i;
 
    memset(counters, 0, sizeof(*counters));
 
    for(i=0; i < PMU_CELL_NUM_COUNTERS; i++) {
        pfm_regmask_set(counters, i);
    }
}
 
static void
pfm_cell_get_impl_pmcs(pfmlib_regmask_t *impl_pmcs)
{
    unsigned int i;
 
    memset(impl_pmcs, 0, sizeof(*impl_pmcs));
 
    for(i=0; i < PFM_CELL_NUM_PMCS; i++) {
        pfm_regmask_set(impl_pmcs, i);
    }
}
 
static void
pfm_cell_get_impl_pmds(pfmlib_regmask_t *impl_pmds)
{
    unsigned int i;
 
    memset(impl_pmds, 0, sizeof(*impl_pmds));
 
    for(i=0; i < PMU_CELL_NUM_PERFCTR; i++) {
        pfm_regmask_set(impl_pmds, i);
    }
}
 
static void
pfm_cell_get_impl_counters(pfmlib_regmask_t *impl_counters)
{
    unsigned int i;
 
    for(i=0; i < PMU_CELL_NUM_COUNTERS; i++) {
        pfm_regmask_set(impl_counters, i);
    }
}
 
static char*
pfm_cell_get_event_name(unsigned int i)
{
    return cell_pe[i].pme_name;
}
 
static int
pfm_cell_get_event_desc(unsigned int ev, char **str)
{
    char *s;
 
    s = cell_pe[ev].pme_desc;
    if (s) {
        *str = strdup(s);
    } else {
        *str = NULL;
    }
    return PFMLIB_SUCCESS;
}
 
static int
pfm_cell_get_cycle_event(pfmlib_event_t *e)
{
    int i;
 
    for (i = 0; i < PME_CELL_EVENT_COUNT; i++) {
        if (!strcmp(cell_pe[i].pme_name, "CYCLES")) {
            e->event = i;
            return PFMLIB_SUCCESS;
        }
    }
    return PFMLIB_ERR_NOTFOUND;
}
 
int pfm_cell_spe_event(unsigned int event_index)
{
    if (event_index >= PME_CELL_EVENT_COUNT)
        return 0;
 
    return is_spe_signal_group(get_signal_type(cell_pe[event_index].pme_code));
}
 
pfm_pmu_support_t cell_support={
    .pmu_name       = "CELL",
    .pmu_type       = PFMLIB_CELL_PMU,
    .pme_count      = PME_CELL_EVENT_COUNT,
    .pmc_count      = PFM_CELL_NUM_PMCS,
    .pmd_count      = PMU_CELL_NUM_PERFCTR,
    .num_cnt        = PMU_CELL_NUM_COUNTERS,
    .get_event_code     = pfm_cell_get_event_code,
    .get_event_name     = pfm_cell_get_event_name,
    .get_event_counters = pfm_cell_get_event_counters,
    .dispatch_events    = pfm_cell_dispatch_events,
    .pmu_detect     = pfm_cell_detect,
    .get_impl_pmcs      = pfm_cell_get_impl_pmcs,
    .get_impl_pmds      = pfm_cell_get_impl_pmds,
    .get_impl_counters  = pfm_cell_get_impl_counters,
    .get_event_desc     = pfm_cell_get_event_desc,
    .get_cycle_event        = pfm_cell_get_cycle_event
};