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 5F1811DA5B for ; Wed, 22 Nov 2023 09:25:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="X9hZnKrU" Received: by smtp.kernel.org (Postfix) with ESMTPS id BADDBC433C7 for ; Wed, 22 Nov 2023 09:25:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1700645155; bh=eByhMiPejJ6e1vNOOxQFI65gZ5ms/6nTQeIQUg+Dups=; h=From:To:Subject:Date:In-Reply-To:References:From; b=X9hZnKrU2AAuFkY54tUtBAFiezcFTboMk1GJOvKfRmdXzymsogStKIa5RzAQIPISQ tUsm8XdCmrgDvDlsH3ujA0ej3Yur5XrRPPk6l6OhwPsqOZLPrQDJ68e29uEs5MRbKb wfv3m3nHo/VyuEo+eZAT8s+BltyEdbgac9OC6n6ZHbcylAd+MIHoEp5Gw8O1uvd+Bp BbtMdG9lasGHCXIk9BfeeqlDSH4PQ++CRyltvf7k5scGIrDzGXqtYlLC5U2KxR9IPv N5uFBXgMxo+OLJDw+XWvabKZi12RKzVJBtZ7Bam94KM3xtEpDtGkTSxRXQsHwn8T/W EdSoIiC2Gtftw== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id A4932C53BD1; Wed, 22 Nov 2023 09:25:55 +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: Wed, 22 Nov 2023 09:25:55 +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: 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=3D218171 --- Comment #11 from Perry Yuan(AMD) (Perry.Yuan@amd.com) --- (In reply to Gino Badouri from comment #10) > Hi Perry, >=20 > Unfortunately they're not present: >=20 > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3Dnorminal freq=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > cat: '/sys/devices/system/cpu/cpu*/acpi_cppc/nominal_freq': No such file = or > directory > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3Dnorminal perf=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > cat: '/sys/devices/system/cpu/cpu*/acpi_cppc/nominal_perf': No such file = or > directory > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3Dhighest_perf perf=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D > cat: '/sys/devices/system/cpu/cpu*/acpi_cppc/highest_perf': No such file = or > directory > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3Dlowest_nonlinear_perf perf=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D > cat: '/sys/devices/system/cpu/cpu*/acpi_cppc/lowest_nonlinear_perf': No s= uch > file or directory > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3Dlowest perf=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > cat: '/sys/devices/system/cpu/cpu*/acpi_cppc/lowest_perf': No such file or > directory >=20 > But I guess this is expected as the driver still does not load with linux > kernel 6.7.0 rc2: >=20 > [ 0.640246] amd_pstate: the _CPC object is not present in SBIOS or ACPI > disabled >=20 > But if you look in ssdt7.dsl from the attachment I just posted, you can > clearly see the _CPC entries are present. > They look like: >=20 > Name (_CPC, Package (0x17) // _CPC: Continuous Performance Contr= ol > { > 0x17,=20 > 0x03, > .... Yeah, I saw that, looks like the table is not defined correctly. The values offset are all zero, let me check with internal team to see if h= ow can we fix that if the table has problem. Package { NumEntries, // Integer Revision, // Integer HighestPerformance, // Integer or Buffer (Resource Descriptor) NominalPerformance, // Integer or Buffer (Resource Descriptor) LowestNonlinearPerformance, // Integer or Buffer (Resource Descriptor) LowestPerformance, // Integer or Buffer (Resource Descriptor) GuaranteedPerformanceRegister, // Buffer (Resource Descriptor) DesiredPerformanceRegister , // Buffer (Resource Descriptor) MinimumPerformanceRegister , // Buffer (Resource Descriptor) MaximumPerformanceRegister , // Buffer (Resource Descriptor) PerformanceReductionToleranceRegister, // Buffer (Resource Descriptor) TimeWindowRegister, // Buffer (Resource Descriptor) CounterWraparoundTime, // Integer or Buffer (Resource Descriptor) ReferencePerformanceCounterRegister, // Buffer (Resource Descriptor) DeliveredPerformanceCounterRegister, // Buffer (Resource Descriptor) PerformanceLimitedRegister, // Buffer (Resource Descriptor) CPPCEnableRegister // Buffer (Resource Descriptor) AutonomousSelectionEnable, // Integer or Buffer (Resource Descriptor) AutonomousActivityWindowRegister, // Buffer (Resource Descriptor) EnergyPerformancePreferenceRegister, // Buffer (Resource Descriptor) ReferencePerformance // Integer or Buffer (Resource Descriptor) LowestFrequency, // Integer or Buffer (Resource Descriptor) NominalFrequency // Integer or Buffer (Resource Descriptor) } --=20 You may reply to this email to add a comment. 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