From nobody Thu Jun 25 00:28:00 2026 X-Original-To: dev-commits-src-main@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4gm05D3gPcz6k3pP for ; Thu, 25 Jun 2026 00:28:00 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "YR1" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4gm05D34qLz3WtL for ; Thu, 25 Jun 2026 00:28:00 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1782347280; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=ZDkymoZNrQ6Nk31fVsC6nLzP68zJK4ly30OInezVuv0=; b=MwoAdx9O0/EQ9QpIpJa4mvmTWkXEl8qNeoSF35h0+cR4VDGWfAGS51Y0t+g47+5B/UwfcW o38xYdjmZqDfUoI+sJmY4ytllnuFaC+ANI9RXshzV3jAfRlcI36wMMbBm/jZ5Pjt5ClOx6 PTwwmgtjDUcoF6UQH6jtph0Cny55BpOAZ7v7GZhSEI5MZJy5W0zsqa/rxAywJ+0oyPRQTJ ArsKEnZL3uhtnfMYOM2s7slTvg2rm0TU1x5slk4YFpcF8JgyewL59g4SauiY7yuHcgwUNS mzawBJWl5TFjfDVUg1qWdXHWLEIcGw2j3f/4je4zezE/Bp+IC78t2ZgBa8DV0A== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1782347280; a=rsa-sha256; cv=none; b=hglcBcAnQaCD237w1v33qU6cuPXk+qyGemMecSP3Yoxz6E+b6UsfARl+z8iLRy+D2sqLbY v8+VLyEaf34jlvJbOUjrqmKk226tb6MXCoe4xFYjqCzgP1n8ax2R86yeE78V6qoe3oorFt LMLazrhX/9/o4IpnFhwNFar4zcfsZZX+03L8W31T9EK/TNR79BnWTdu6oL5f2G9KR+a9TH xbcdt77eZCx7RHhqIztSR6omWvOkE7KCGapcusLdVjMBCYOn0Va3YOpd9oGf5YboVuAPhc aj7p7v4ACTZR9GGvO9q5Ke7CMGRYSZgsq8aESsWMa4Y6wxK7de2OY0DErMw2Vg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1782347280; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=ZDkymoZNrQ6Nk31fVsC6nLzP68zJK4ly30OInezVuv0=; b=q0H268edhrwsBoMhmlrq23NRndz0gEJKOpikAvRYE6ErIjMU3ME8RW6TaDqA08I3UX/u2H f5DE4znO00yR13HiTqCIwAQvcl+o5TBNnVfD1Hjxd55HOwIySJkt/UX/yrW+q0ANQR02PW F0VRDIQwn8qIMYfaTJQAxgitNXYnGDuBVec49n7ENmH4UI61a4q/rRpZJ7Ml53AqwqH12e 7gHLPYuHD7Jl8m5DVI7SRlbRFL3EvMyDTT0N9oEMPlt469uuiedXujQKqlvlLYjZQBo6pe JyJpSy+IJKLII041JKbSJSCER5O2brpWo2cxY0BEmYBqAGpVYYBhtSl3JKPq4w== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4gm05D1Qxszk2s for ; Thu, 25 Jun 2026 00:28:00 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 39ddc by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Thu, 25 Jun 2026 00:28:00 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Olivier Certner Subject: git: 66d48f02de0f - main - hwpstate_intel(4): Comment the EPB to EPP computation List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-main@freebsd.org Sender: owner-dev-commits-src-main@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: olce X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 66d48f02de0fbf4d8efb3d4edc69f37c54f130fd Auto-Submitted: auto-generated Date: Thu, 25 Jun 2026 00:28:00 +0000 Message-Id: <6a3c7610.39ddc.56d2eba9@gitrepo.freebsd.org> The branch main has been updated by olce: URL: https://cgit.FreeBSD.org/src/commit/?id=66d48f02de0fbf4d8efb3d4edc69f37c54f130fd commit 66d48f02de0fbf4d8efb3d4edc69f37c54f130fd Author: Olivier Certner AuthorDate: 2026-06-24 20:14:12 +0000 Commit: Olivier Certner CommitDate: 2026-06-25 00:27:24 +0000 hwpstate_intel(4): Comment the EPB to EPP computation Explain why the '* 17' instead of '* 16', as suggested in revision D55629. Event: Halifax Hackathon 202606 Location: jrm@'s living room Sponsored by: The FreeBSD Foundation --- sys/x86/cpufreq/hwpstate_intel.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sys/x86/cpufreq/hwpstate_intel.c b/sys/x86/cpufreq/hwpstate_intel.c index b18f1b674d22..6d3100217365 100644 --- a/sys/x86/cpufreq/hwpstate_intel.c +++ b/sys/x86/cpufreq/hwpstate_intel.c @@ -254,6 +254,10 @@ out: return (ret); } +/* + * Multiplying by 17 here allows to send [0;15] to the full [0;255] range (so + * 255 is reported when EPB is set to 15, instead of 240). + */ #define EPB_TO_EPP(x) ((x) * 17) #define EPP_TO_EPB(x) ((x) >> 4)