linux-kernel - [PATCH] ACPI: acpi_pad: mark Zhaoxin CPUs NONSTOP TSC correctly

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-next>] [day] [month] [year] [list]

Date:   Tue, 6 Jun 2023 17:56:41 +0800
From:   Tony W Wang-oc <TonyWWang-oc@...oxin.com>
To:     <rafael@...nel.org>, <lenb@...nel.org>,
        <linux-acpi@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <CobeChen@...oxin.com>, <TimGuo@...oxin.com>,
        <LeoLiu-oc@...oxin.com>
Subject: [PATCH] ACPI: acpi_pad: mark Zhaoxin CPUs NONSTOP TSC correctly

Zhaoxin CPUs support NONSTOP TSC feature, so do not mark these CPUs
TSC unstable when use the acpi_pad driver.

Signed-off-by: Tony W Wang-oc <TonyWWang-oc@...oxin.com>
---
 drivers/acpi/acpi_pad.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index 02f1a1b1143c..7a453c5ff303 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -66,6 +66,7 @@ static void power_saving_mwait_init(void)
 	case X86_VENDOR_AMD:
 	case X86_VENDOR_INTEL:
 	case X86_VENDOR_ZHAOXIN:
+	case X86_VENDOR_CENTAUR:
 		/*
 		 * AMD Fam10h TSC will tick in all
 		 * C/P/S0/S1 states when this bit is set.
-- 
2.17.1