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

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Date:   Thu, 16 Sep 2021 15:29:36 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Sanket Goswami <Sanket.Goswami@....com>, Shyam-sundar.S-k@....com,
        mgross@...ux.intel.com
Cc:     platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] platform/x86: amd-pmc: Check s0i3 cycle status

Hi,

On 9/16/21 2:41 PM, Sanket Goswami wrote:
> 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>

Thank you for your patch, I've applied this patch to my review-hans 
branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

Note it will show up in my review-hans branch once I've pushed my
local branch there, which might take a while.

Once I've run some tests on this branch the patches there will be
added to the platform-drivers-x86/for-next branch and eventually
will be included in the pdx86 pull-request to Linus for the next
merge-window.

Regards,

Hans


> ---
>  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);
>  
>