From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5EBD219B for ; Fri, 26 Jan 2024 04:33:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706243637; cv=none; b=YmI92pZNk4YFEEB9FYhh6q8gS2vOZyuXCk/UiBEWtNlgIjq3655YBy4zUyDGsZ26JQ7MRyc0/fIwqxQebYFctweTkc+wgki/ubW6kAl4bTe4OumWdYgt5P91qbeDClMQpbgFBgcTle4dicDfCrIVeVBVrrbB6f81X7SZVlHHQ0A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706243637; c=relaxed/simple; bh=2oZ8DiliGEk4Wk0rsZWIUpKqrWqN19Dt+uNUU2ifqbI=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=LBjcD7Plx2S18OpL4MqTYc8kVh3genD59CuOVKa5Dx+y0fflVysoMwuJ68frOcuK0i+pqaAq6p7uqF1yP8tOc7227gh0XZb4IgaEsOHUq6JhbQbv2+2rtmVaQCC7uYn8rjYZ4RucL0ELHFonXB94kQnBU0G0o5xtYVmdgSHY6Wo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=tVNq/+Wo; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="tVNq/+Wo" Received: by smtp.kernel.org (Postfix) with ESMTPS id B3BF9C433A6 for ; Fri, 26 Jan 2024 04:33:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706243636; bh=2oZ8DiliGEk4Wk0rsZWIUpKqrWqN19Dt+uNUU2ifqbI=; h=From:To:Subject:Date:In-Reply-To:References:From; b=tVNq/+WojgdIKJ4JgmnJsxR0qLBGKT2Aj0fZ50x7sD/SzJFWRTFVX1YYlePrV64C8 wbU7sN9Igr9ggar+Z9/DuXfkxJ5Bi4tNemA2L0oteBaJMekaK/OucB6u2OAafzspp0 a187jM6Gkx9ewdyWfgKQuB3KKhZGh4uuBaJIqxdfh0b+I5xjqAm6PSkMaqHbLAucv7 Bepw4kxilkz67wVpqd30l5sM2FfSL2bcpHpM2ftA8d35ijMET/+s/0laktdsk5GfTo Qo+Xw4TKJSqxiHaY1uNHlzhgfbzptlatq7izG+2bevO33Rj9Dctfm/hTK7KpReqxTH gmeCc9MyCCAag== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 9C6BBC53BD4; Fri, 26 Jan 2024 04:33:56 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-pm@vger.kernel.org Subject: [Bug 218171] amd-pstate not loading on zen2 threadripper 3960x (trx40 Date: Fri, 26 Jan 2024 04:33:55 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Power Management X-Bugzilla-Component: cpufreq X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: Perry.Yuan@amd.com X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: ANSWERED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: linux-pm@vger.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D218171 --- Comment #40 from Perry Yuan(AMD) (Perry.Yuan@amd.com) --- Thank you everyone for the testing results!! Because of the TR40 CPU hardware pstate was implemented by CPPC V2 and shar= ed memory design(PCC channel), so the ACPI table is not same as MSR solution. = it is expected after I confirmed with internal team.=20 ResourceTemplate () { Register (PCC, 0x20, // Bit Width 0x00, // Bit Offset --> expected 0x0000000000000000, // Address ,) }, Looks like all the CPPC capabilities on above tested systems are filled correctly. I will post the patch for kernel review.=20 Let me know if you have any other questions about this issue.=20 Perry. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.=