From nobody Thu Mar 30 01:39:43 2023 X-Original-To: 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 4Pn5x85j9tz42Cnc for ; Thu, 30 Mar 2023 01:51:08 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: from mail-ed1-x533.google.com (mail-ed1-x533.google.com [IPv6:2a00:1450:4864:20::533]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1D4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Pn5x85HZ8z4Q77 for ; Thu, 30 Mar 2023 01:51:08 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Authentication-Results: mx1.freebsd.org; none Received: by mail-ed1-x533.google.com with SMTP id r11so70665891edd.5 for ; Wed, 29 Mar 2023 18:51:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20210112.gappssmtp.com; s=20210112; t=1680141067; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=gxd6KFeOfvdZLCN6vMFFjj6rGX1gXzX8418rXe/rx8Q=; b=aewad/jnj6T5Oh0wz5WU9a/+NOu/hZEGX1w49WjhjgJ7hI75BNSSW03UUYN9NTGpra ELvZYeaEMFdJQzN6XO2xKT3VoOCodfuBZVopV6EqOQtZAv1Y0sst81p6fW04eWCb1ZOf LQfUv3p97ukGKEwlZeK4ggVNZYRi0IKJIW9lni776/CesnEN3A8j/8sbzRciOEPt+mUP zEqcArXnoPWJlN/2HzyE4A+9vod6CUZtTnaUb8AOQeRu9iV8zivxfIt5va4pap7DayX3 snc32Vn27k+6V85D20BOnQOU+C203AUasqsuhCgLEO8id0vvu4y99SBHjQsEEhFrsOnw QlSA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680141067; h=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=gxd6KFeOfvdZLCN6vMFFjj6rGX1gXzX8418rXe/rx8Q=; b=sjayvkO4Rd3tQyy91blSFGNxGucoXROSnpI682CfHWg/HE1WzN6TuQvP13Dw9xgpda D7HcyepoqUmvzoL6YLPQYyEoiCr1PZQJkx6CyOlOLBBhO+SzF14bIAiYIfCm1SErdrUm cgCOQT6JgOlQBHvX1SMEYjdsQnaSu1tV2VH90AYTj09gotTREe9qIq/bunnU0JONlSur XSLkmn4EbOmLHlAu1LiRRZk8Qhjcd+xn1L0xnQLdmLgHtZc3h+aO60rG6Vzowj/exoSS 8edJQtNKHdY/SSS7nYwTqRDkdlZZ1kzHHLVaMYS5qZAleaUNczX1t42d9+9aDeuA+NY5 b4qw== X-Gm-Message-State: AAQBX9dsvXeOGPTa0rzhstpIoxJn81SWutuHzFAdvfEw7FPJHAC6TIq/ wi9G2XW8usuAWuGmvpRrRcEEdcEiFy2BNj/tRc0AYA== X-Google-Smtp-Source: AKy350b2rlusEQduXvR5QiStpXT2VK6o6j7RjQAH0+wgg0o7howao3Ol3ylXMp0VfRXW1VBf3M7vuqX+yYM/G8UUEIY= X-Received: by 2002:a17:907:d687:b0:93d:a14f:c9b4 with SMTP id wf7-20020a170907d68700b0093da14fc9b4mr10842951ejc.2.1680141067376; Wed, 29 Mar 2023 18:51:07 -0700 (PDT) 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 References: <629bf85d-4d48-17f5-cb26-dfd29f7e6ff7@FreeBSD.org> In-Reply-To: <629bf85d-4d48-17f5-cb26-dfd29f7e6ff7@FreeBSD.org> From: Warner Losh Date: Wed, 29 Mar 2023 19:39:43 -0600 Message-ID: Subject: Re: Deprecate/remove riscv64sf To: John Baldwin Cc: "freebsd-arch@freebsd.org" Content-Type: multipart/alternative; boundary="0000000000007e6c9c05f81453ed" X-Rspamd-Queue-Id: 4Pn5x85HZ8z4Q77 X-Spamd-Bar: ---- X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US] X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-ThisMailContainsUnwantedMimeParts: N --0000000000007e6c9c05f81453ed Content-Type: text/plain; charset="UTF-8" On Wed, Mar 29, 2023, 12:17 PM John Baldwin wrote: > Is anyone using riscv64sf? All of the existing RISC-V boards include > hard-float > support as well as QEMU. The FPGA cores we use at Cambridge also all > support > hard-float. My understanding is that glibc doesn't bother supporting > soft-float > on RV64. If no one is using it (and has no plans to use it), then I > propose > we drop it in 14.0 and save one more buildworld from make tinderbox. > I agree. Iirc it was added just in case since some 32bit cores had no fp. Warner > --0000000000007e6c9c05f81453ed Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


On Wed, Mar 29, 2023, 12:17 PM John Baldwin <jhb@freebsd.org> wrote:
Is anyone using riscv64sf?=C2=A0 All of the existi= ng RISC-V boards include hard-float
support as well as QEMU.=C2=A0 The FPGA cores we use at Cambridge also all = support
hard-float.=C2=A0 My understanding is that glibc doesn't bother support= ing soft-float
on RV64.=C2=A0 If no one is using it (and has no plans to use it), then I p= ropose
we drop it in 14.0 and save one more buildworld from make tinderbox.

I agree= . Iirc it was added just in case since some 32bit cores had no fp.

Warner=C2=A0
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