From: Miao Li <miao.li@intel.com>
To: dev@dpdk.org
Cc: david.hunt@intel.com, yinan.wang@intel.com, miao.li@intel.com
Subject: [PATCH v1] power: add wakeup log
Date: Tue, 22 Feb 2022 13:52:27 +0000 [thread overview]
Message-ID: <20220222135227.631275-1-miao.li@intel.com> (raw)
This patch adds a log in rte_power_monitor to show the core has been
waked up.
Signed-off-by: Miao Li <miao.li@intel.com>
---
lib/eal/x86/rte_power_intrinsics.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/lib/eal/x86/rte_power_intrinsics.c b/lib/eal/x86/rte_power_intrinsics.c
index f749da9b85..dd63e2b6eb 100644
--- a/lib/eal/x86/rte_power_intrinsics.c
+++ b/lib/eal/x86/rte_power_intrinsics.c
@@ -128,6 +128,14 @@ rte_power_monitor(const struct rte_power_monitor_cond *pmc,
: "D"(0), /* enter C0.2 */
"a"(tsc_l), "d"(tsc_h));
+ cur_value = __get_umwait_val(pmc->addr, pmc->size);
+
+ /* check if core has been waked up by changing monitoring value */
+ if (pmc->fn(cur_value, pmc->opaque) != 0)
+ RTE_LOG(INFO, EAL,
+ "lcore %u is waked up from value change\n",
+ rte_lcore_id());
+
end:
/* erase sleep address */
rte_spinlock_lock(&s->lock);
--
2.25.1
next reply other threads:[~2022-02-22 5:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-22 13:52 Miao Li [this message]
2022-02-22 16:07 ` Stephen Hemminger
2022-02-24 2:45 ` Li, Miao
2022-02-22 16:32 ` David Hunt
2022-02-24 2:38 ` Li, Miao
2022-02-25 11:19 ` Burakov, Anatoly
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