| 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
| ||
|
Message-ID: <32332118-bf97-e890-7d97-5d4eeab0388b@redhat.com>
Date: Mon, 14 Mar 2022 16:27:50 +0100
From: Hans de Goede <hdegoede@...hat.com>
To: Enver Balalic <balalic.enver@...il.com>, markgross@...nel.org,
platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
pobrn@...tonmail.com
Subject: Re: [PATCH v2] platform/x86: hp-wmi: support omen thermal profile
policy v1
Hi,
On 3/14/22 13:14, Enver Balalic wrote:
> As it turns out, these laptops have 2 thermal profile versions.
> A previous patch added support for v0, this patch adds support
> for v1 thermal policies that are in use on some devices.
> We obtain the thermal policy version by querying the get system
> design data WMI call and looking at the fourth byte it returns,
> except if the system board DMI Board ID is in a specific array
> that the windows command center app overrides to thermal policy
> v0 for some reason.
>
> - V1
> Initial Patch
> - V2
> Rename V0 thermal policy values to HP_OMEN_V0_THERMAL_PROFILE_
> for consistency with the V1 thermal policy values.
> Fix issue where instead of forcing certain boards to V0, they
> were being forced to V1.
> Drop unnecessary newline additions.
>
> Signed-off-by: Enver Balalic <balalic.enver@...il.com>
> ---
> drivers/platform/x86/hp-wmi.c | 81 +++++++++++++++++++++++++++++------
> 1 file changed, 67 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
> index c56c8864961d..0109ddc84be7 100644
> --- a/drivers/platform/x86/hp-wmi.c
> +++ b/drivers/platform/x86/hp-wmi.c
> @@ -57,6 +57,14 @@ static const char * const omen_thermal_profile_boards[] = {
> "8917", "8918", "8949", "894A", "89EB"
> };
>
> +/* DMI Board names of Omen laptops that are specifically set to be thermal
> + * profile version 0 by the Omen Command Center app, regardless of what
> + * the get system design information WMI call returns
> + */
> +static const char *const omen_thermal_profile_force_v0_boards[] = {
> + "8607", "8746", "8747", "8749", "874A", "8748"
> +};
> +
> enum hp_wmi_radio {
> HPWMI_WIFI = 0x0,
> HPWMI_BLUETOOTH = 0x1,
> @@ -117,6 +125,7 @@ enum hp_wmi_gm_commandtype {
> HPWMI_SET_PERFORMANCE_MODE = 0x1A,
> HPWMI_FAN_SPEED_MAX_GET_QUERY = 0x26,
> HPWMI_FAN_SPEED_MAX_SET_QUERY = 0x27,
> + HPWMI_GET_SYSTEM_DESIGN_DATA = 0x28,
> };
>
> enum hp_wmi_command {
> @@ -151,10 +160,16 @@ enum hp_wireless2_bits {
> HPWMI_POWER_FW_OR_HW = HPWMI_POWER_BIOS | HPWMI_POWER_HARD,
> };
>
> -enum hp_thermal_profile_omen {
> - HP_OMEN_THERMAL_PROFILE_DEFAULT = 0x00,
> - HP_OMEN_THERMAL_PROFILE_PERFORMANCE = 0x01,
> - HP_OMEN_THERMAL_PROFILE_COOL = 0x02,
> +enum hp_thermal_profile_omen_v1 {
> + HP_OMEN_V1_THERMAL_PROFILE_DEFAULT = 0x30,
> + HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE = 0x31,
> + HP_OMEN_V1_THERMAL_PROFILE_COOL = 0x50,
> +};
> +
> +enum hp_thermal_profile_omen_v0 {
> + HP_OMEN_V0_THERMAL_PROFILE_DEFAULT = 0x00,
> + HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE = 0x01,
> + HP_OMEN_V0_THERMAL_PROFILE_COOL = 0x02,
> };
IMHO it would be more logical to list the v0 settings above
the v1 settings, rather then the other way around.
I've fixed this up while merging this patch:
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
>
> enum hp_thermal_profile {
> @@ -407,9 +422,6 @@ static int omen_thermal_profile_set(int mode)
> char buffer[2] = {0, mode};
> int ret;
>
> - if (mode < 0 || mode > 2)
> - return -EINVAL;
> -
> ret = hp_wmi_perform_query(HPWMI_SET_PERFORMANCE_MODE, HPWMI_GM,
> &buffer, sizeof(buffer), 0);
>
> @@ -431,6 +443,30 @@ static bool is_omen_thermal_profile(void)
> board_name) >= 0;
> }
>
> +static int omen_get_thermal_policy_version(void)
> +{
> + unsigned char buffer[8] = { 0 };
> + int ret;
> +
> + const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
> +
> + if (board_name) {
> + int matches = match_string(omen_thermal_profile_force_v0_boards,
> + ARRAY_SIZE(omen_thermal_profile_force_v0_boards),
> + board_name);
> + if (matches >= 0)
> + return 0;
> + }
> +
> + ret = hp_wmi_perform_query(HPWMI_GET_SYSTEM_DESIGN_DATA, HPWMI_GM,
> + &buffer, sizeof(buffer), sizeof(buffer));
> +
> + if (ret)
> + return ret < 0 ? ret : -EINVAL;
> +
> + return buffer[3];
> +}
> +
> static int omen_thermal_profile_get(void)
> {
> u8 data;
> @@ -1053,13 +1089,16 @@ static int platform_profile_omen_get(struct platform_profile_handler *pprof,
> return tp;
>
> switch (tp) {
> - case HP_OMEN_THERMAL_PROFILE_PERFORMANCE:
> + case HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE:
> + case HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE:
> *profile = PLATFORM_PROFILE_PERFORMANCE;
> break;
> - case HP_OMEN_THERMAL_PROFILE_DEFAULT:
> + case HP_OMEN_V0_THERMAL_PROFILE_DEFAULT:
> + case HP_OMEN_V1_THERMAL_PROFILE_DEFAULT:
> *profile = PLATFORM_PROFILE_BALANCED;
> break;
> - case HP_OMEN_THERMAL_PROFILE_COOL:
> + case HP_OMEN_V0_THERMAL_PROFILE_COOL:
> + case HP_OMEN_V1_THERMAL_PROFILE_COOL:
> *profile = PLATFORM_PROFILE_COOL;
> break;
> default:
> @@ -1072,17 +1111,31 @@ static int platform_profile_omen_get(struct platform_profile_handler *pprof,
> static int platform_profile_omen_set(struct platform_profile_handler *pprof,
> enum platform_profile_option profile)
> {
> - int err, tp;
> + int err, tp, tp_version;
> +
> + tp_version = omen_get_thermal_policy_version();
> +
> + if (tp_version < 0 || tp_version > 1)
> + return -EOPNOTSUPP;
>
> switch (profile) {
> case PLATFORM_PROFILE_PERFORMANCE:
> - tp = HP_OMEN_THERMAL_PROFILE_PERFORMANCE;
> + if (tp_version == 0)
> + tp = HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE;
> + else
> + tp = HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE;
> break;
> case PLATFORM_PROFILE_BALANCED:
> - tp = HP_OMEN_THERMAL_PROFILE_DEFAULT;
> + if (tp_version == 0)
> + tp = HP_OMEN_V0_THERMAL_PROFILE_DEFAULT;
> + else
> + tp = HP_OMEN_V1_THERMAL_PROFILE_DEFAULT;
> break;
> case PLATFORM_PROFILE_COOL:
> - tp = HP_OMEN_THERMAL_PROFILE_COOL;
> + if (tp_version == 0)
> + tp = HP_OMEN_V0_THERMAL_PROFILE_COOL;
> + else
> + tp = HP_OMEN_V1_THERMAL_PROFILE_COOL;
> break;
> default:
> return -EOPNOTSUPP;
Powered by blists - more mailing lists