From nobody Sun May 19 15:58:49 2024 Received: from mail-yb1-f201.google.com (mail-yb1-f201.google.com [209.85.219.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BC94015623A for ; Thu, 25 Apr 2024 21:59:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714082396; cv=none; b=iPU7aTjIXdOHxQ/1MiWgGDKc4HPED9LTgp+FpB2OOA5IAvniitV9H39+fVrMpUfBLQXkThukXArMvc/G/WDz30m/2XjW2mflwbXL2GGlP9lZlhgbDCG7JWYXcIFP/8kDpsOrCkPPqNlAhGmPwes7JBOtgduJcbeFmvg42jNCqOo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714082396; c=relaxed/simple; bh=NNgi4h1D/vIB8B9WWNK8rKrvsAEbOXnhHyZ/SEcHCmI=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=LMrCoxNQRXNBCFlOjRW2ysWXRz16ug8uwFPVXdTgqCqbTEj8mwuelUAzmpht3IcvWAjrWjnCCI3xTNwf27WTbgiClA+Kx0Jym6nsa5Q5HMobrytMW/0GPg9b22nfFd96tdq0MnPDDAFmb7DWH/3RuTNeN+P2xVhThV6LZEACP2s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--yosryahmed.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=RpPGXvQL; arc=none smtp.client-ip=209.85.219.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--yosryahmed.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="RpPGXvQL" Received: by mail-yb1-f201.google.com with SMTP id 3f1490d57ef6-ddaf165a8d9so2689542276.1 for ; Thu, 25 Apr 2024 14:59:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1714082394; x=1714687194; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=l7hgyv8FDM1wHsZylAaox/6RJL9rO8NR1hm+CUZNluQ=; b=RpPGXvQLN5T72+EZ89vA5DmogVgx+oXqVHRhOhPbTq5v2RshNEkJwQoaKR9Gwayf4M szDAs2juRpSrI0wuMLUje923oRPRLU8cvhFmiG+wUBbj5NQV3Z1Yvb7pBLBCPQcGIBxA wSFC96C+nr0oY0pTpswnEmVLql+ZzsBrwfakdJWAjTjGiHp8//TB4gU0ZZySz2t8sjl+ tXK+rPVFu42yTSrrYzr3TnHfWJjnWAjF8QaIQolshNYuuHRMYSwB/9FuXNVtUVj01A+D I/p7el/OPi4x1No3XNP7M7YCDj5mUTlExpuqJeeTUh9l/ZwLfSs68aycDvcw8bVjq16x 0K/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1714082394; x=1714687194; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=l7hgyv8FDM1wHsZylAaox/6RJL9rO8NR1hm+CUZNluQ=; b=bt3tv5zTV7yw/ig0koN9NqLAImmg7Bpr8z1H5oOImA0BGVApWCDEgYliQVKXvKw3UR 0CuYU3S/oqsY/NVKrDIGXu/v7l3uwmYGIe/fax+MOwCu8hePtLBOokOKelu6PHhC1Wwy RsiHGKsp45AfDEO+d+neBXcMqIwbIGVuQ186Ztjh/Nd930uwePL2N0xGSW8mmjnvlsgM 3antBxFsVzX6bVB75mYxLYf4oF0SCo+diTvxDPxKZU71JUg57t4XoDxHb8qENBQyh9kW Ov8tYDKhT82YNVjQt+Zj/HIM5nfczKJlCM7KmcrcqM0rJ8XhZpvvE+7DCvoMrHtsWWCE 6D6A== X-Forwarded-Encrypted: i=1; AJvYcCWcbdCUH04M7dOstSdMPjdzrf/B6yS/OOIgqcoHf3IXf6CuVov1xgxhsn/Wu6mv8xMRRSmbvU8BmjhX9/5l/F6tQD+2AB0JPvqA4bQg X-Gm-Message-State: AOJu0Yz9mrUn6kqVv4UAIE6tUqXaHgGzCelgj8Xt/BVQqtd6mQQ6IaOn mGarMJMTFm2ehzOu4WUpyB8UZh9V747sQglgSYXgIFU3bE+/Qd5Lsl5ABJKFtAPtTU9js7N2ZPe kNTSYs0jhjW+kuyEaBg== X-Google-Smtp-Source: AGHT+IFRO3Uz01eedNagD4MaFbj1TCHrH2OYWaLnefGokv8XltZrBBnf3FkfF5XHqG41ekpe3LfbjjoxDN9hT4L2 X-Received: from yosry.c.googlers.com ([fda3:e722:ac3:cc00:20:ed76:c0a8:29b4]) (user=yosryahmed job=sendgmr) by 2002:a05:6902:154b:b0:de4:7a4b:903 with SMTP id r11-20020a056902154b00b00de47a4b0903mr112080ybu.3.1714082393698; Thu, 25 Apr 2024 14:59:53 -0700 (PDT) Date: Thu, 25 Apr 2024 21:59:51 +0000 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.44.0.769.g3c40516874-goog Message-ID: <20240425215951.2310105-1-yosryahmed@google.com> Subject: [PATCH] x86/mm: remove unused CR3_HW_ASID_BITS From: Yosry Ahmed 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, Yosry Ahmed Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 --- 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 @@ * */ =20 -/* 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 for * user/kernel switches --=20 2.44.0.769.g3c40516874-goog