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 A69674F8BB for ; Mon, 30 Sep 2024 13:28:09 +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=1727702889; cv=none; b=Y5FrjcohNhJE93p/KtGgOpDRjiVNfksmAT2yMzL1CUbAjRSZG/gUjWCoGgDUXzAHAYHlsbMmvW9G6/bVIa2XcfzhNq5Ydx8629sI30kH3lNE1OY/AH2B2iJR4o0sI+uudO91Puh8FvSj3RV6kmWHLvJX9fvFc3VquMU2snKRemw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727702889; c=relaxed/simple; bh=iCybYYGnnoX29ThjUdnhGWiMaFZVUTjwboqtyT9B2MY=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=rFJa2e8wKHplcYX+d1o8jM/28Jaf2F431oD/XNXPALP23TLOySNAyiShlbvgRUdZ35lvdDSA0UOtBiwWlGEQNXJsvCF1OqU/5TJwlCzmWSTjpisnE4cDBr3QJcqMWTz/Z4MatdigXo8E/poV0FUUMqTOoz6JzzV1BW5KWTrLRn0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=QNQ7ofB4; 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="QNQ7ofB4" Received: by smtp.kernel.org (Postfix) with ESMTPS id 2F633C4CEC7 for ; Mon, 30 Sep 2024 13:28:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1727702889; bh=iCybYYGnnoX29ThjUdnhGWiMaFZVUTjwboqtyT9B2MY=; h=From:To:Subject:Date:In-Reply-To:References:From; b=QNQ7ofB4AtVnQ8+Ts7PjImjU7w9/vomQxQWV4R+PDBEexnJzassiL44gPsVeNPlk7 34OPJyG3TVY7GCcglSLCueEVWNv2B1x288k6fY2uthaEpMyvFFp6vq3TdglhoGST9R fsCgCQ1YtPKTt+nMK6GAyb0yWpjvd01IcPbd6wsPAWmlOpVRPIdxz6MUjc8WWuPyUO Qj5Q+wZColSDksBKLIbLNnXmMzpp5c2xnc76hYgKqSLc4vhcrqSDALoz2UcUQm5nbX Vvas+bgptwRw7HhnQJG2Xzd8zvxf2+F8bxgIKHWkrP/fG7LrBnKhZx6WQ37JPOfVKC xb767aG+RGXQA== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 2172EC53BC4; Mon, 30 Sep 2024 13:28:09 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-pm@vger.kernel.org Subject: =?UTF-8?B?W0J1ZyAyMTkzMzJdIC9zeXMvZGV2aWNlcy9zeXN0ZW0vY3B1L2Nw?= =?UTF-8?B?dWZyZXEvcG9saWN5MC9lbmVyZ3lfcGVyZm9ybWFuY2VfcHJlZmVyZW5jZTog?= =?UTF-8?B?RGV2aWNlIG9yIHJlc291cmNlIGJ1c3k=?= Date: Mon, 30 Sep 2024 13:28:08 +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: high X-Bugzilla-Who: aros@gmx.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=3D219332 --- Comment #7 from Artem S. Tashkinov (aros@gmx.com) --- (In reply to Dhananjay Ugwekar (AMD) from comment #6) >=20 > I see from the attachment that you are using performance governor, so you > are limited to only performance EPP hint, trying to write other EPP hints > (power/balance_power/balance_performance) will show the above error.=20 >=20 > You'll need to change to powersave governor to use these hints. Please let > me know if this fixes your issue. That's indeed the case and changing the CPU frequency governor to "powersav= e" has fixed the issue but I wonder if you could log an error message in dmesg= if the governor is incompatible with what the user has requested. It still makes my head hurt trying to understand the interaction between classic CPU governors and energy_performance_preference modes. >From the testing I've done it looks like classic CPU governors are 100% useless/have zero effect in the presence of amd-pstate in which case I don't understand why they are exposed/exist in the first place. Is it possible to hide them? Make them read only? Just to avoid further useless bug reports. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.=