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ihk_os_setperfevent: Return number of registered events

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In addition to that, mcctrl_perf_set is modified so that it updates
usrdata->perf_event_num with number of registered events.

Change-Id: I3f343176f55b06d3baab0b0fe34e240f39706cf6
Fujitsu: POSTK_DEBUG_TEMP_FIX_80
This commit is contained in:
Shiratori, Takehiro
2018-10-16 17:15:43 +09:00
committed by Masamichi Takagi
parent 24a3b236a0
commit fd8bed670e
4 changed files with 54 additions and 12 deletions
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22
kernel/host.c
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@ -711,17 +711,26 @@ static int syscall_packet_handler(struct ihk_ikc_channel_desc *c,
if (!pcd->exclude_user) {
mode |= PERFCTR_USER_MODE;
}
ihk_mc_perfctr_init_raw(pcd->target_cntr, pcd->config, mode);
ihk_mc_perfctr_stop(1 << pcd->target_cntr);
ihk_mc_perfctr_reset(pcd->target_cntr);
ret = ihk_mc_perfctr_init_raw(pcd->target_cntr, pcd->config, mode);
if (ret != 0) {
break;
}
ret = ihk_mc_perfctr_stop(1 << pcd->target_cntr);
if (ret != 0) {
break;
}
ret = ihk_mc_perfctr_reset(pcd->target_cntr);
break;
case PERF_CTRL_ENABLE:
ihk_mc_perfctr_start(pcd->target_cntr_mask);
ret = ihk_mc_perfctr_start(pcd->target_cntr_mask);
break;
case PERF_CTRL_DISABLE:
ihk_mc_perfctr_stop(pcd->target_cntr_mask);
ret = ihk_mc_perfctr_stop(pcd->target_cntr_mask);
break;
case PERF_CTRL_GET:
@ -736,12 +745,11 @@ static int syscall_packet_handler(struct ihk_ikc_channel_desc *c,
ihk_mc_unmap_memory(NULL, pp, sizeof(struct perf_ctrl_desc));
pckt.msg = SCD_MSG_PERF_ACK;
pckt.err = 0;
pckt.err = ret;
pckt.arg = packet->arg;
pckt.reply = packet->reply;
ihk_ikc_send(resp_channel, &pckt, 0);
ret = 0;
break;
case SCD_MSG_CPU_RW_REG: