From nobody Tue Mar 1 19:58:19 2022 X-Original-To: freebsd-arch@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 A99E519F62EB for ; Tue, 1 Mar 2022 19:58:27 +0000 (UTC) (envelope-from peterj@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4]) (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 "smtp.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4K7Sjb4QbGz4rcs; Tue, 1 Mar 2022 19:58:27 +0000 (UTC) (envelope-from peterj@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1646164707; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=jehNAA6osCRHmYk554PvKpGK/pucKNrCgC+go7NidWM=; b=SPd9L4jy4YHof2+PUiiaX4iOIiD2XyFBJ0uVz0xAOQ32SlhU5uuFDMPJ0mpveUUNWX7TOm w/f/8cBB74gem6n8yvjxERlPBWRgIlHiRl+EgJmzMunIWDXJjBj/ErnznwVMq9Oz2nk+I0 0LCspQwTptX62pl/Qh4S9aT58rVNBfBjA/sRAmM7AELwfOA1sbSYlAFH/NLCUq56oGvbPp 5o2dMeqVHbDmNoFb/pR6Y7ZQMM6FIs2a9BmuViK19L6GnrrcYLKIbS5HBVmVi90oW86NaB mt3Yp8K/p4io08SofFFKNDe99ZhjLOUdOySoRoxbzCg1KJw1H76vbUYvEx7Aww== Received: from server.rulingia.com (ppp239-208.static.internode.on.net [59.167.239.208]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) (Authenticated sender: peterj) by smtp.freebsd.org (Postfix) with ESMTPSA id 7473EAB94; Tue, 1 Mar 2022 19:58:26 +0000 (UTC) (envelope-from peterj@freebsd.org) Date: Wed, 2 Mar 2022 06:58:19 +1100 From: Peter Jeremy To: Mike Karels Cc: freebsd-arch@freebsd.org Subject: Re: support for asymmetric CPUs Message-ID: References: <202203011904.221J4Yg8032167@mail.karels.net> List-Id: Discussion related to FreeBSD architecture List-Archive: https://lists.freebsd.org/archives/freebsd-arch List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-arch@freebsd.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="hE2a7nJK79M1wdjr" Content-Disposition: inline In-Reply-To: <202203011904.221J4Yg8032167@mail.karels.net> X-PGP-Key: http://www.rulingia.com/keys/peter.pgp ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1646164707; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=jehNAA6osCRHmYk554PvKpGK/pucKNrCgC+go7NidWM=; b=qBZOC2cY/X13QVQdPqaa0QS+zpo4Wluu7S6hKx5cxL5GX1VR8uoQIawY2tLQNSQpuHKCy+ jRM853nszcCpuc7B2mHP8nRfEAL8xrVaphgRwNX8ycQ5wgSSv96aOR04Ca/Z0RIwS0sIqb n1891dy7cFa9XhHjJvhCChNci0csMJRsVbRoxPNKLUVVfm+mxBKOklF/k7qzoAGbWRdsAl K4r1SEMRqQR1p262PNJMW1mvz6S8oXCeCrGSlAz+ps/JGsesE5NK33iSCzt7DWoSGRq/52 0xp1vYVkRMegvjFV9f1JCEmyli9DtGD6kVEQLHkDMfmjW0E59f3ZxI6b6oypOA== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1646164707; a=rsa-sha256; cv=none; b=olA+39S3ltr8fFBZOtQq/dwUmEwrtx7bvUbg/d8hFubdUv/J/6BGgeYl/yHcJj5EwCXAya RrkU5trd50IdE4xbBtsFvuwMgJqjFSVhQ0nDBlKv6IASVPYKxsTqs3dlJ3kSHBXTheDi4g wRli1KbHFaT18zjoaMQzWkbZxnPqCvXhybTQfZOaebIRbgjekLKYOO5LjjV8Hx1KuZfEhm CGjyr2QLLSGt3CSsf5XTAXjfIjdNhRmW3so9fw7X9hDyfmyym+TeXI8xMmUcbyTlltwu/J LjWpOFlbTR/scXcb4SvqF3Vdk892EntqD/Gxi8YdaKOf3FK6q1zunj6iTAxMXA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N --hE2a7nJK79M1wdjr Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2022-Mar-01 13:04:34 -0600, Mike Karels wrote: >E-cores. (Does FreeBSD support any ARM chips with asymmetric CPUs yet?) Only one that I'm aware of: The RK3399 is big.LITTLE (4=D7Cortex-A53 @1.4GHz + 2=D7Cortex-A72 @1.8GHz) used in e.g. https://www.pine64.org/rockpro64/ As far as I can tell, FreeBSD treats it as a flat hex-core CPU. --=20 Peter Jeremy --hE2a7nJK79M1wdjr Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEE7rKYbDBnHnTmXCJ+FqWXoOSiCzQFAmIeetVfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEVF QjI5ODZDMzA2NzFFNzRFNjVDMjI3RTE2QTU5N0EwRTRBMjBCMzQACgkQFqWXoOSi CzT1Bg//ftK9nh77mFQlm3ZbNA5aI06IuGFdbVoOu8/bPSi1rE9R1M4DQMGOqneB sRFeMOcQ020qJb2vX2a8CFt7EMQvpLRDN2e8k5Wp4JHkhcMu5moGlqkOOiJGUlN8 Ype7Oq3C0xK5y+vjU1qp+hR7u6aoXNG2rQR750d9lWKzLPT9xE+0vhwRZGtagAeD hrHINcaNHMkepmaPIsskRGegotwByOB5NhE/++bPpPuhYyVlskyH6ZaKuxWTEOK6 wUKDfBo63SNkA8HUbPC3JZ5n+pZGjn+BjmKoprOy/rgghoHMtTwTTZ1DXhX1+dMk lgC9/YohFJRXGmSUTaNp1MwnvQgIJc6GCwLELsSiYGG8lDoGtTDxpHn+ZEko1QP/ ipFhBtjmICdaXeH87x5w55qgZ4owvaynrOqF6r4KgNx1xtEIjA2cMTLqNveKWhTb EMRS0SGN9TwQ2IuZj+3KJbJyO6sisWmTeDLBqTz9X3QoiohPLXMI4cYzUZzcXREV ci/yTcQXtiKo4pY1LCHv/jShYRP8B2WLnAIzczkD0HrqeKpXpfT/V/m0l9GgK8oD +XDs9mHnmzjmYn51UdcqAts2rul+Qvk5Iv4PQ1rZOFjfv3K6p+MZC1Od5ukXHD6h Xi2p1lY+LcSHMJnFH7TxsWOvq1BWPZdxqUUb0MVRqOZWvLXUr+A= =O1F3 -----END PGP SIGNATURE----- --hE2a7nJK79M1wdjr--