From 9c93f8f4fc8cd938bc0ee8d121809c6941e03347 Mon Sep 17 00:00:00 2001
From: Sanket Goswami <Sanket.Goswami@amd.com>
Date: Tue, 21 Sep 2021 17:29:10 +0530
Subject: [PATCH] platform/x86: amd-pmc: Send command to dump data after clearing OS_HINT
Git-commit: 9c93f8f4fc8cd938bc0ee8d121809c6941e03347
Patch-mainline: v5.16-rc1
References: bsc#1210644
It was reported that the resume stats received from the firmware are
always zero. This happens because the SMU expects the driver to send the
command to dump the log data after clearing the OS_HINT.
Adjust the order of the commands sent to SMU.
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Link: https://lore.kernel.org/r/20210921115910.19401-1-Sanket.Goswami@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/platform/x86/amd-pmc.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/platform/x86/amd-pmc.c b/drivers/platform/x86/amd-pmc.c
index f185c43bbaa4..d4d2ba886f4e 100644
--- a/drivers/platform/x86/amd-pmc.c
+++ b/drivers/platform/x86/amd-pmc.c
@@ -436,14 +436,14 @@ static int __maybe_unused amd_pmc_resume(struct device *dev)
int rc;
u8 msg;
- /* Let SMU know that we are looking for stats */
- amd_pmc_send_cmd(pdev, 0, NULL, SMU_MSG_LOG_DUMP_DATA, 0);
-
msg = amd_pmc_get_os_hint(pdev);
rc = amd_pmc_send_cmd(pdev, 0, NULL, msg, 0);
if (rc)
dev_err(pdev->dev, "resume failed\n");
+ /* Let SMU know that we are looking for stats */
+ amd_pmc_send_cmd(pdev, 0, NULL, SMU_MSG_LOG_DUMP_DATA, 0);
+
/* Dump the IdleMask to see the blockers */
amd_pmc_idlemask_read(pdev, dev, NULL);
--
2.35.3