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 18FE33AEF47 for ; Wed, 13 May 2026 19:14:57 +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=1778699697; cv=none; b=k9NI31rRuNp07TfxACtrAlxDbzEAMFW0j2jQO3kTeBJpR0PV3toxUW2WpHMPZ8mp6WevbCjIAVvdpnJAmHOPbm9mjc3kTsG8P3i2XyfKQsz6D6pzbqCfDgE60nLjp8VcVwfByYnLTM8Fb0rh4cKWH6fv5Dj8aV76VSeS5XmHwsM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778699697; c=relaxed/simple; bh=W0aSFub7T4kt6Q2Y7UedezcxCuTYwKBXKH/o8hY1PqU=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=Z9GhZTVafp8hgHcfxGSWiu8DhFpkkDRn+UuZOdkLSGmwZOV+eFBTS5W3m49tCvYTPp5Z4yK6bTff/nBe8bjKGQ4Pf7AXMm/UouSU4iQ/sLyzlP+MGuMMvWJbpx2j67yoORxq55Dm2Qw2AgMNYRPmuNzRb5c/ZTsqSV4wHq5OR14= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=htwy80pG; 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="htwy80pG" Received: by smtp.kernel.org (Postfix) with ESMTPS id EF13DC2BCB7 for ; Wed, 13 May 2026 19:14:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778699697; bh=W0aSFub7T4kt6Q2Y7UedezcxCuTYwKBXKH/o8hY1PqU=; h=From:To:Subject:Date:In-Reply-To:References:From; b=htwy80pGO3M3WpGV+PJ09vbPtUtyV3bERJp5pkn/jNGV3UDutyapnxYWZQK9RocfD MchlkloWY0pG6ltXJPEQGC0qnbdQDLqrJLZuIhH6UyzOb2qY9RWZtdxsr+2npLu/rq cOgsAoDCJat+M1zbMRtyLGOiCk4DDxBefF1ojX1oU5M9AbXWnGO0yvcS9qiP/6+/LR q2xnwzHijIDKD01gqrO0/3duFEStAKZy1lpwo0YC+alWxIpwszHDKqb8mK9uLKQegd 097ywtJLT6KIIwyicmP4iZ6hLLuzCtsnA2/fpR9B7iyjZUQzfcZ4QpSh9ognhJ+bRg 7wsKIF7ha69Vg== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id E2116C4160E; Wed, 13 May 2026 19:14:56 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-pm@vger.kernel.org Subject: [Bug 221505] REGRESSION][amd_pstate] "EPP cannot be set under performance policy" (EBUSY) when switching to performance profile via PPD on 7.1 Date: Wed, 13 May 2026 19:14:56 +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: sergeyluashkov@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: 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=3D221505 --- Comment #10 from Sergey (sergeyluashkov@gmail.com) --- (In reply to Mario Limonciello (AMD) from comment #9) > > With amd_dynamic_epp=3Denable: >=20 > I'm not sure why this is happening. What platform profiles does this oth= er > driver support? >=20 > > With amd_dynamic_epp=3Ddisable (or no parameter): >=20 > So you're still seeing this? >=20 > [ 299.585428] amd_pstate: EPP cannot be set under performance policy >=20 > Can I see the kernel log with dynamic debug for amd-pstate turned on? And > also the output from the amd-pstate triage tool in amd-debug-tools. With amd_dynamic_epp=3Denable: cat /sys/devices/platform/asus-nb-wmi/platform-profile/platform-profile-25/= name=20 asus-wmi cat /sys/devices/platform/asus-nb-wmi/platform-profile/platform-profile-25/prof= ile=20=20 balanced cat /sys/devices/platform/asus-nb-wmi/platform-profile/platform-profile-25/choi= ces=20=20 quiet balanced performance With amd_dynamic_epp=3Ddisable (or no parameter): [ 128.393895] amd_pstate: EPP cannot be set under performance policy =F0=9F=90=A7 Arch Linux =F0=9F=90=A7 Kernel: 7.1.0-rc2-1-mainline-gf9f16835d4dc-dirty =E2=97=8B 'status': active =E2=97=8B 'prefcore': enabled =F0=9F=90=A7 ITMT: Y =F0=9F=92=BB CPU: AMD RYZEN AI MAX+ 392 w/ Radeon 8060S =F0=9F=94=8B Per-CPU sysfs files +---------+----------------+----------------------+----------------+-------= -------------+--------------------+---------------------------------+------= ------+---------+ | CPU # | CPU Min Freq | CPU Nonlinear Freq | CPU Max Freq | Scal= ing Min Freq | Scaling Max Freq | Energy Performance Preference | Prefcor= e |=20 Boost | |---------+----------------+----------------------+----------------+-------= -------------+--------------------+---------------------------------+------= ------+---------| | 0 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 206= |=20=20 0 | | 1 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 216= |=20=20 0 | | 2 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 201= |=20=20 0 | | 3 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 216= |=20=20 0 | | 4 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 196= |=20=20 0 | | 5 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 211= |=20=20 0 | | 6 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 176= |=20=20 0 | | 7 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 166= |=20=20 0 | | 8 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 186= |=20=20 0 | | 9 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 181= |=20=20 0 | | 10 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 171= |=20=20 0 | | 11 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 191= |=20=20 0 | | 12 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 206= |=20=20 0 | | 13 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 216= |=20=20 0 | | 14 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 201= |=20=20 0 | | 15 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 216= |=20=20 0 | | 16 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 196= |=20=20 0 | | 17 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 211= |=20=20 0 | | 18 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 176= |=20=20 0 | | 19 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 166= |=20=20 0 | | 20 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 186= |=20=20 0 | | 21 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 181= |=20=20 0 | | 22 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 171= |=20=20 0 | | 23 | 609334 | 1980334 | 3199000 |=20=20= =20=20=20=20=20=20=20=20=20 609334 | 3199000 | power | 191= |=20=20 0 | +---------+----------------+----------------------+----------------+-------= -------------+--------------------+---------------------------------+------= ------+---------+ =F0=9F=94=8B CPPC MSRs +---------+----------+----------+--------------------+---------+-----------= -+ | CPU # | Enable | Status | Cap 1 | Cap 2 | Request = | |---------+----------+----------+--------------------+---------+-----------= -| | 0 | 1 | 0 | 0xce694114ce694114 | 0x0 | 0xff001569= | | 1 | 1 | 0 | 0xd8694114d8694114 | 0x0 | 0xff001569= | | 2 | 1 | 0 | 0xc9694114c9694114 | 0x0 | 0xff001569= | | 3 | 1 | 0 | 0xd8694114d8694114 | 0x0 | 0xff001569= | | 4 | 1 | 0 | 0xc4694114c4694114 | 0x0 | 0xff001569= | | 5 | 1 | 0 | 0xd3694114d3694114 | 0x0 | 0xff001569= | | 6 | 1 | 0 | 0xb0694114b0694114 | 0x0 | 0xff001569= | | 7 | 1 | 0 | 0xa6694114a6694114 | 0x0 | 0xff001569= | | 8 | 1 | 0 | 0xba694114ba694114 | 0x0 | 0xff001569= | | 9 | 1 | 0 | 0xb5694114b5694114 | 0x0 | 0xff001569= | | 10 | 1 | 0 | 0xab694114ab694114 | 0x0 | 0xff001569= | | 11 | 1 | 0 | 0xbf694114bf694114 | 0x0 | 0xff001569= | | 12 | 1 | 0 | 0xce694114 | 0x0 | 0xff001569= | | 13 | 1 | 0 | 0xd8694114 | 0x0 | 0xff001569= | | 14 | 1 | 0 | 0xc9694114 | 0x0 | 0xff001569= | | 15 | 1 | 0 | 0xd8694114 | 0x0 | 0xff001569= | | 16 | 1 | 0 | 0xc4694114 | 0x0 | 0xff001569= | | 17 | 1 | 0 | 0xd3694114 | 0x0 | 0xff001569= | | 18 | 1 | 0 | 0xb0694114 | 0x0 | 0xff001569= | | 19 | 1 | 0 | 0xa6694114 | 0x0 | 0xff001569= | | 20 | 1 | 0 | 0xba694114 | 0x0 | 0xff001569= | | 21 | 1 | 0 | 0xb5694114 | 0x0 | 0xff001569= | | 22 | 1 | 0 | 0xab694114 | 0x0 | 0xff001569= | | 23 | 1 | 0 | 0xbf694114 | 0x0 | 0xff001569= | +---------+----------+----------+--------------------+---------+-----------= -+ =F0=9F=94=8B MSR_AMD_CPPC_CAP1 (decoded) +---------+---------------+------------------+----------------+------------= ----+ | CPU # | Lowest Perf | Nonlinear Perf | Nominal Perf | Highest P= erf | |---------+---------------+------------------+----------------+------------= ----| | 0 | 20 | 65 | 105 | = 206 | | 1 | 20 | 65 | 105 | = 216 | | 2 | 20 | 65 | 105 | = 201 | | 3 | 20 | 65 | 105 | = 216 | | 4 | 20 | 65 | 105 | = 196 | | 5 | 20 | 65 | 105 | = 211 | | 6 | 20 | 65 | 105 | = 176 | | 7 | 20 | 65 | 105 | = 166 | | 8 | 20 | 65 | 105 | = 186 | | 9 | 20 | 65 | 105 | = 181 | | 10 | 20 | 65 | 105 | = 171 | | 11 | 20 | 65 | 105 | = 191 | | 12 | 20 | 65 | 105 | = 206 | | 13 | 20 | 65 | 105 | = 216 | | 14 | 20 | 65 | 105 | = 201 | | 15 | 20 | 65 | 105 | = 216 | | 16 | 20 | 65 | 105 | = 196 | | 17 | 20 | 65 | 105 | = 211 | | 18 | 20 | 65 | 105 | = 176 | | 19 | 20 | 65 | 105 | = 166 | | 20 | 20 | 65 | 105 | = 186 | | 21 | 20 | 65 | 105 | = 181 | | 22 | 20 | 65 | 105 | = 171 | | 23 | 20 | 65 | 105 | = 191 | +---------+---------------+------------------+----------------+------------= ----+ =F0=9F=94=8B MSR_AMD_CPPC_REQ (decoded) +---------+------------+------------+----------------+---------------------= ------+ | CPU # | Min Perf | Max Perf | Desired Perf | Energy Performance Perf | |---------+------------+------------+----------------+---------------------= ------| | 0 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 1 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 2 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 3 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 4 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 5 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 6 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 7 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 8 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 9 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 10 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 11 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 12 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 13 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 14 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 15 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 16 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 17 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 18 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 19 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 20 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 21 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 22 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | | 23 | 21 | 105 | 0 |=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 255 | +---------+------------+------------+----------------+---------------------= ------+ --=20 You may reply to this email to add a comment. 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