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Wysocki" , Sumeet Pawnikar , Srinivas Pandruvada Subject: [PATCH] powercap: intel_rapl: Add PL4 support for Ice Lake Date: Wed, 14 Jan 2026 21:01:52 -0500 Message-ID: <6088605.ChMirdbgyp@daniel-desktop3> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Microsoft Surface Pro 7 firmware throttles the processor upon boot/resume. Userspace needs to be able to restore the correct value. Link: https://github.com/linux-surface/linux-surface/issues/706 Signed-off-by: Daniel Tang --- drivers/powercap/intel_rapl_msr.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/powercap/intel_rapl_msr.c b/drivers/powercap/intel_rap= l_msr.c index 9a7e150b3536..a2bc0a9c1e10 100644 --- a/drivers/powercap/intel_rapl_msr.c +++ b/drivers/powercap/intel_rapl_msr.c @@ -162,6 +162,7 @@ static int rapl_msr_write_raw(int cpu, struct reg_actio= n *ra) =20 /* List of verified CPUs. */ static const struct x86_cpu_id pl4_support_ids[] =3D { + X86_MATCH_VFM(INTEL_ICELAKE_L, NULL), X86_MATCH_VFM(INTEL_TIGERLAKE_L, NULL), X86_MATCH_VFM(INTEL_ALDERLAKE, NULL), X86_MATCH_VFM(INTEL_ALDERLAKE_L, NULL), --=20 2.51.0