mirror of https://gitee.com/openkylin/linux.git
ACPI: PM: s2idle: Add support for new Microsoft UUID
This adds supports for _DSM notifications to the Microsoft UUID described by Microsoft documentation for s2idle. Link: https://docs.microsoft.com/en-us/windows-hardware/design/device-experiences/modern-standby-firmware-notifications Co-developed-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Pratik Vishwakarma <Pratik.Vishwakarma@amd.com> Tested-by: Julian Sikorski <belegdol@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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@ -32,6 +32,9 @@ static const struct acpi_device_id lps0_device_ids[] = {
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{"", },
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};
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/* Microsoft platform agnostic UUID */
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#define ACPI_LPS0_DSM_UUID_MICROSOFT "11e00d56-ce64-47ce-837b-1f898f9aa461"
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#define ACPI_LPS0_DSM_UUID "c4eb40a0-6cd2-11e2-bcfd-0800200c9a66"
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#define ACPI_LPS0_GET_DEVICE_CONSTRAINTS 1
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@ -39,6 +42,8 @@ static const struct acpi_device_id lps0_device_ids[] = {
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#define ACPI_LPS0_SCREEN_ON 4
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#define ACPI_LPS0_ENTRY 5
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#define ACPI_LPS0_EXIT 6
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#define ACPI_LPS0_MS_ENTRY 7
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#define ACPI_LPS0_MS_EXIT 8
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/* AMD */
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#define ACPI_LPS0_DSM_UUID_AMD "e3f32452-febc-43ce-9039-932122d37721"
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@ -51,6 +56,9 @@ static acpi_handle lps0_device_handle;
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static guid_t lps0_dsm_guid;
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static int lps0_dsm_func_mask;
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static guid_t lps0_dsm_guid_microsoft;
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static int lps0_dsm_func_mask_microsoft;
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/* Device constraint entry structure */
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struct lpi_device_info {
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char *name;
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@ -366,14 +374,18 @@ static int lps0_device_attach(struct acpi_device *adev,
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rev_id = 0;
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lps0_dsm_func_mask = validate_dsm(adev->handle,
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ACPI_LPS0_DSM_UUID_AMD, rev_id, &lps0_dsm_guid);
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lps0_dsm_func_mask_microsoft = validate_dsm(adev->handle,
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ACPI_LPS0_DSM_UUID_MICROSOFT, rev_id,
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&lps0_dsm_guid_microsoft);
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} else {
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rev_id = 1;
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lps0_dsm_func_mask = validate_dsm(adev->handle,
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ACPI_LPS0_DSM_UUID, rev_id, &lps0_dsm_guid);
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lps0_dsm_func_mask_microsoft = -EINVAL;
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}
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if (lps0_dsm_func_mask < 0)
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return 0;//function eval failed
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if (lps0_dsm_func_mask < 0 && lps0_dsm_func_mask_microsoft < 0)
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return 0; //function evaluation failed
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lps0_device_handle = adev->handle;
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@ -412,7 +424,14 @@ int acpi_s2idle_prepare_late(void)
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if (pm_debug_messages_on)
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lpi_check_constraints();
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if (acpi_s2idle_vendor_amd()) {
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if (lps0_dsm_func_mask_microsoft > 0) {
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acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF,
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lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
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acpi_sleep_run_lps0_dsm(ACPI_LPS0_MS_EXIT,
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lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
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acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY,
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lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
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} else if (acpi_s2idle_vendor_amd()) {
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acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF_AMD,
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lps0_dsm_func_mask, lps0_dsm_guid);
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acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY_AMD,
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@ -432,7 +451,14 @@ void acpi_s2idle_restore_early(void)
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if (!lps0_device_handle || sleep_no_lps0)
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return;
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if (acpi_s2idle_vendor_amd()) {
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if (lps0_dsm_func_mask_microsoft > 0) {
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acpi_sleep_run_lps0_dsm(ACPI_LPS0_EXIT,
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lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
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acpi_sleep_run_lps0_dsm(ACPI_LPS0_MS_ENTRY,
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lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
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acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_ON,
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lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
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} else if (acpi_s2idle_vendor_amd()) {
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acpi_sleep_run_lps0_dsm(ACPI_LPS0_EXIT_AMD,
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lps0_dsm_func_mask, lps0_dsm_guid);
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acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_ON_AMD,
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