From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id B2FADC3DA4A for ; Sat, 10 Aug 2024 01:10:54 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 290B36B0085; Fri, 9 Aug 2024 21:10:54 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 23F7A6B008A; Fri, 9 Aug 2024 21:10:54 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0E0946B0092; Fri, 9 Aug 2024 21:10:54 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id E0F526B008A for ; Fri, 9 Aug 2024 21:10:53 -0400 (EDT) Received: from smtpin10.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 828D21A1691 for ; Sat, 10 Aug 2024 01:10:53 +0000 (UTC) X-FDA: 82434556386.10.7055CD2 Received: from mail-ed1-f50.google.com (mail-ed1-f50.google.com [209.85.208.50]) by imf21.hostedemail.com (Postfix) with ESMTP id AA4651C0004 for ; Sat, 10 Aug 2024 01:10:51 +0000 (UTC) Authentication-Results: imf21.hostedemail.com; dkim=pass header.d=google.com header.s=20230601 header.b=wRDT6sUq; spf=pass (imf21.hostedemail.com: domain of yosryahmed@google.com designates 209.85.208.50 as permitted sender) smtp.mailfrom=yosryahmed@google.com; dmarc=pass (policy=reject) header.from=google.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1723252199; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=jhd3bFnYD1s60y+7S7+OTRvxV8+tGIprZoTV5cbzM88=; b=5Nh+4KUWI1OwtNFvCBrh0kwg1Q1grZ7A87Crf9p9f7Zn5vOeyPM+WkrVhmnJfpnwNg+LG0 FfhZ858poWWHvb5daAnV2JdjG2yOvyyJjJysW9g62glUU/i0ZMv9GHKUXoUVRJCM+zayc3 3Xjf7Ij1U3Okgj0HAkrOWyowxwcxUZI= ARC-Authentication-Results: i=1; imf21.hostedemail.com; dkim=pass header.d=google.com header.s=20230601 header.b=wRDT6sUq; spf=pass (imf21.hostedemail.com: domain of yosryahmed@google.com designates 209.85.208.50 as permitted sender) smtp.mailfrom=yosryahmed@google.com; dmarc=pass (policy=reject) header.from=google.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1723252199; a=rsa-sha256; cv=none; b=ikeODxKr09Os8ElFPh28XGAR333xiwmlwMHifqi5inot1jD2iT7psYIr3biXcaMfbaptMZ QD9JhGt6zaLslBcujT+WkGYKj6yk1iApQFPzFKCQ7sdRURA5G/Q4Nqyv0NUDMKX/gYFjC8 pmNQId/HHtqHL5npBx0/Ul63Hu6KQNc= Received: by mail-ed1-f50.google.com with SMTP id 4fb4d7f45d1cf-5b7b6a30454so3120910a12.2 for ; Fri, 09 Aug 2024 18:10:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1723252250; x=1723857050; darn=kvack.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=jhd3bFnYD1s60y+7S7+OTRvxV8+tGIprZoTV5cbzM88=; b=wRDT6sUqZHkzHQ/T4FWv6YmNiFVQfvXrKZLFZ1X8AMqvhqlMJT/kr5Mkfc34jWSSIU ccIChT1SR9ctOj+FgIOlxZwHFoOjYRpkvbUtoDNkPMkiMNlx93tPutMBbVGDpbA4iy8m dhOy1XXMmKCAc89N91X/rq6zQmFHQsab39e1gBFmnBp3WZwez44L8GW8rZ1wh9tOikVi Z22EBcHx7hJ4qXye/+voZiBuJiHYpJVUm8ASwqkPJh1uiPGndctW3JrVx8rq65vF+VCm sq6SUu0qIG4UhLp14PGc3YQSsTUl40Bp8ZaaddyDiyp6lR0QMETCauTKhiwpLLSjZvuk Bs2w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1723252250; x=1723857050; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=jhd3bFnYD1s60y+7S7+OTRvxV8+tGIprZoTV5cbzM88=; b=kMRQ2IlYozVUCOe1UtiTY1fkaRcBNLAasixrDNYJCngIzIdETk4UxoTqde9txZAP4O 2L7xFQGIGa3YAiW/UXXLREwztDi8Gr8nIPwbYOYsBxLn0V1w8axMagrdT7Yx8n1qHzcK a6bYiQetUuFvDWFW4G940UCDPcHwQOQTrgQNjcentcLd5VkDiV2MTeK9biF5unSlKbvW cNmWIa9qljkG7R6SvGXKFfm8JHaP5FCnKtFk+g/78eHoH4hBTm6smXINDLNunXaej+Ec rFOyLaS5aNF2+UCfvaNPVYLakDv9TjuC6PFLwh1YaUg31r3jEguZHah6kjb8R6jL+pUU DX6Q== X-Forwarded-Encrypted: i=1; AJvYcCX8iTQdEs49XGg6lH+RMIMINglOv/LPN0cDqN5VbUtP7NOK4sSyHJb04NlzC2RUcubckzquIC3gkQ==@kvack.org X-Gm-Message-State: AOJu0YyCMvgtDkILX0GEikJhS5iFYRj+cwecG3ILL/4aJ1EJlkFOh6MU JtAULeoZNForgQjISXWuojpIDhv5px1CK8MepSSGVbckNQUrmGpF88NufusOY6YYU/SBQVn4dt1 wUacSjQaLoFZguFJmiMhnhz0ymAtxWqCL3aJ0 X-Google-Smtp-Source: AGHT+IHmr53elsHncffow/JyZD0MZ/mIdHRrFpGM024g8Dl+a1G/IIUozeYAHCiBkEJH4TNxvMeq3DMoEqF7lqMWHhE= X-Received: by 2002:a17:907:efd6:b0:a7a:a2e3:3734 with SMTP id a640c23a62f3a-a80aa5caf3dmr240505066b.28.1723252249145; Fri, 09 Aug 2024 18:10:49 -0700 (PDT) MIME-Version: 1.0 References: <20240425215951.2310105-1-yosryahmed@google.com> In-Reply-To: <20240425215951.2310105-1-yosryahmed@google.com> From: Yosry Ahmed Date: Fri, 9 Aug 2024 18:10:12 -0700 Message-ID: Subject: Re: [PATCH] x86/mm: remove unused CR3_HW_ASID_BITS To: x86@kernel.org, Thomas Gleixner , Ingo Molnar Cc: Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Andy Lutomirski , Peter Zijlstra , "Kirill A. Shutemov" , Rick Edgecombe , Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Stat-Signature: nt9rdgjjcm9ea4jy39u4dwbohf6o6pki X-Rspam-User: X-Rspamd-Queue-Id: AA4651C0004 X-Rspamd-Server: rspam02 X-HE-Tag: 1723252251-923802 X-HE-Meta: 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 pMFuiOB0 v97V89PeyO9SrJ1QreDMPopk+Q5urh/tgWf/KL92gzNbK2oFeUngg2kl3nAh9ZcMfqnN6Hy4tozLxqyzZstGjnsZBdPUB2I96gDWxz0bxhLLStpjkByqmfDS6/YH5v/tgO+bafNGsxtBl2wOG8fWE6/jCxn0AWNNxCMYrvlKGzc3ZAqbzPf1vAyeqZDwNiNL2rGtDytwZfjKBPf0O6GwY31atMbXoB3/2elIj7R3NakDEQQE= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, Apr 25, 2024 at 2:59=E2=80=AFPM Yosry Ahmed = wrote: > > Commit 6fd166aae78c ("x86/mm: Use/Fix PCID to optimize user/kernel > switches") removed the last usage of CR3_HW_ASID_BITS and opted to use > X86_CR3_PCID_BITS instead. Remove CR3_HW_ASID_BITS. > > Signed-off-by: Yosry Ahmed I think this may have gotten lost in the noise, friendly ping :) > --- > arch/x86/mm/tlb.c | 3 --- > 1 file changed, 3 deletions(-) > > diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c > index 44ac64f3a047c..a2ba5bb201705 100644 > --- a/arch/x86/mm/tlb.c > +++ b/arch/x86/mm/tlb.c > @@ -85,9 +85,6 @@ > * > */ > > -/* There are 12 bits of space for ASIDS in CR3 */ > -#define CR3_HW_ASID_BITS 12 > - > /* > * When enabled, MITIGATION_PAGE_TABLE_ISOLATION consumes a single bit f= or > * user/kernel switches > -- > 2.44.0.769.g3c40516874-goog >