linux-kernel - [PATCH] platform/x86: amd-pmc: Check s0i3 cycle status

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Message-ID: <20210916124130.2581-1-Sanket.Goswami@amd.com>
Date:   Thu, 16 Sep 2021 18:11:30 +0530
From:   Sanket Goswami <Sanket.Goswami@....com>
To:     <Shyam-sundar.S-k@....com>, <hdegoede@...hat.com>,
        <mgross@...ux.intel.com>
CC:     <platform-driver-x86@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Sanket Goswami <Sanket.Goswami@....com>
Subject: [PATCH] platform/x86: amd-pmc: Check s0i3 cycle status

As the PM firmware returns the status of the last s0i3 in the smu_metrics
structure, the existing name "s0i3_cyclecount" seems to be a misnomer.
Change it accordingly to "s0i3_last_entry_status".

Signed-off-by: Sanket Goswami <Sanket.Goswami@....com>
---
 drivers/platform/x86/amd-pmc.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/amd-pmc.c b/drivers/platform/x86/amd-pmc.c
index 0c970f613e09..91c1f1c6c929 100644
--- a/drivers/platform/x86/amd-pmc.c
+++ b/drivers/platform/x86/amd-pmc.c
@@ -141,7 +141,7 @@ static inline void amd_pmc_reg_write(struct amd_pmc_dev *dev, int reg_offset, u3
 struct smu_metrics {
 	u32 table_version;
 	u32 hint_count;
-	u32 s0i3_cyclecount;
+	u32 s0i3_last_entry_status;
 	u32 timein_s0i2;
 	u64 timeentering_s0i3_lastcapture;
 	u64 timeentering_s0i3_totaltime;
@@ -170,7 +170,8 @@ static int smu_fw_info_show(struct seq_file *s, void *unused)
 	seq_puts(s, "\n=== SMU Statistics ===\n");
 	seq_printf(s, "Table Version: %d\n", table.table_version);
 	seq_printf(s, "Hint Count: %d\n", table.hint_count);
-	seq_printf(s, "S0i3 Cycle Count: %d\n", table.s0i3_cyclecount);
+	seq_printf(s, "Last S0i3 Status: %s\n", table.s0i3_last_entry_status ? "Success" :
+		   "Unknown/Fail");
 	seq_printf(s, "Time (in us) to S0i3: %lld\n", table.timeentering_s0i3_lastcapture);
 	seq_printf(s, "Time (in us) in S0i3: %lld\n", table.timein_s0i3_lastcapture);
 
-- 
2.25.1