linux-kernel - Re: [PATCH v2 3/3] platform/x86: acer-wmi: simplify platform profile cycling

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <3bqedlhubucaniyrjkig3cbegfxec5pzrv7vpbpnbphuu6h6od@dymxlla3itdl>
Date: Sat, 4 Jan 2025 12:53:28 -0500
From: Kurt Borja <kuurtb@...il.com>
To: Hridesh MG <hridesh699@...il.com>
Cc: Hans de Goede <hdegoede@...hat.com>, 
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>, Armin Wolf <W_Armin@....de>, platform-driver-x86@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Shuah Khan <skhan@...uxfoundation.org>, 
	SungHwan Jung <onenowy@...il.com>
Subject: Re: [PATCH v2 3/3] platform/x86: acer-wmi: simplify platform profile
 cycling

On Sat, Jan 04, 2025 at 08:59:22PM +0530, Hridesh MG wrote:
> Make use of platform_profile_cycle() to simplify the logic used for
> cycling through the different platform profiles. Also remove the
> handling for AC power as the hardware will accept the different profiles
> regardless of whether or not AC is plugged in.
> 
> Link: https://lore.kernel.org/platform-driver-x86/20e3ac66-b040-49a9-ab00-0adcfdaed2ff@gmx.de/
> Signed-off-by: Hridesh MG <hridesh699@...il.com>
> ---
>  drivers/platform/x86/acer-wmi.c | 87 +++++++++++------------------------------
>  1 file changed, 23 insertions(+), 64 deletions(-)
> 
> diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
> index f6c47deb4c452fc193f22c479c730aecb1e69e44..9c73f78eb302323299e03bf9dbeb2c68bb422938 100644
> --- a/drivers/platform/x86/acer-wmi.c
> +++ b/drivers/platform/x86/acer-wmi.c
> @@ -34,6 +34,7 @@
>  #include <linux/unaligned.h>
>  #include <linux/bitfield.h>
>  #include <linux/bitops.h>
> +#include "linux/bitmap.h"
>  
>  MODULE_AUTHOR("Carlos Corbacho");
>  MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
> @@ -1975,9 +1976,6 @@ acer_predator_v4_platform_profile_set(struct platform_profile_handler *pprof,
>  	if (err)
>  		return err;
>  
> -	if (tp != ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO)
> -		last_non_turbo_profile = tp;
> -

I think this should be kept. If the user changes profile manually this
may not reflect the actual last_non_turbo_profile.

>  	return 0;
>  }
>  
> @@ -2036,76 +2034,37 @@ static int acer_platform_profile_setup(struct platform_device *device)
>  static int acer_thermal_profile_change(void)

I'm Cc'ing SungHwan Jung as they were the author of patch that added
this function. 

~ Kurt

>  {
>  	/*
> -	 * This mode key can rotate each mode or toggle turbo mode.
> -	 * On battery, only ECO and BALANCED mode are available.
> +	 * This mode key will either cycle through each mode or toggle the performance profile.
>  	 */
>  	if (quirks->predator_v4) {
>  		u8 current_tp;
> -		int tp, err;
> -		u64 on_AC;
> +		int max_perf, tp, err;
>  
> -		err = WMID_gaming_get_misc_setting(ACER_WMID_MISC_SETTING_PLATFORM_PROFILE,
> -						   &current_tp);
> -		if (err)
> -			return err;
> +		if (cycle_gaming_thermal_profile) {
> +			platform_profile_cycle();
> +		} else {
> +			err = WMID_gaming_get_misc_setting(ACER_WMID_MISC_SETTING_PLATFORM_PROFILE,
> +							   &current_tp);
> +			if (err)
> +				return err;
>  
> -		/* Check power source */
> -		err = WMID_gaming_get_sys_info(ACER_WMID_CMD_GET_PREDATOR_V4_BAT_STATUS, &on_AC);
> -		if (err < 0)
> -			return err;
> +			max_perf = find_last_bit(platform_profile_handler.choices,
> +						 PLATFORM_PROFILE_LAST);
>  
> -		switch (current_tp) {
> -		case ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO:
> -			if (!on_AC)
> -				tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED;
> -			else if (cycle_gaming_thermal_profile)
> -				tp = ACER_PREDATOR_V4_THERMAL_PROFILE_ECO;
> -			else
> +			if (current_tp == max_perf) {
>  				tp = last_non_turbo_profile;
> -			break;
> -		case ACER_PREDATOR_V4_THERMAL_PROFILE_PERFORMANCE:
> -			if (!on_AC)
> -				tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED;
> -			else
> -				tp = ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO;
> -			break;
> -		case ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED:
> -			if (!on_AC)
> -				tp = ACER_PREDATOR_V4_THERMAL_PROFILE_ECO;
> -			else if (cycle_gaming_thermal_profile)
> -				tp = ACER_PREDATOR_V4_THERMAL_PROFILE_PERFORMANCE;
> -			else
> -				tp = ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO;
> -			break;
> -		case ACER_PREDATOR_V4_THERMAL_PROFILE_QUIET:
> -			if (!on_AC)
> -				tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED;
> -			else if (cycle_gaming_thermal_profile)
> -				tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED;
> -			else
> -				tp = ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO;
> -			break;
> -		case ACER_PREDATOR_V4_THERMAL_PROFILE_ECO:
> -			if (!on_AC)
> -				tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED;
> -			else if (cycle_gaming_thermal_profile)
> -				tp = ACER_PREDATOR_V4_THERMAL_PROFILE_QUIET;
> -			else
> -				tp = ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO;
> -			break;
> -		default:
> -			return -EOPNOTSUPP;
> -		}
> -
> -		err = WMID_gaming_set_misc_setting(ACER_WMID_MISC_SETTING_PLATFORM_PROFILE, tp);
> -		if (err)
> -			return err;
> +			} else {
> +				last_non_turbo_profile = current_tp;
> +				tp = max_perf;
> +			}
>  
> -		/* Store non-turbo profile for turbo mode toggle*/
> -		if (tp != ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO)
> -			last_non_turbo_profile = tp;
> +			err = WMID_gaming_set_misc_setting(
> +				ACER_WMID_MISC_SETTING_PLATFORM_PROFILE, tp);
> +			if (err)
> +				return err;
>  
> -		platform_profile_notify(&platform_profile_handler);
> +			platform_profile_notify(&platform_profile_handler);
> +		}
>  	}
>  
>  	return 0;