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[2620:137:e000::3:5]) by mx.google.com with ESMTPS id p1-20020a17090a868100b00285175d490bsi514693pjn.45.2023.11.21.19.06.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Nov 2023 19:06:38 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:5 as permitted sender) client-ip=2620:137:e000::3:5; Authentication-Results: mx.google.com; dkim=pass header.i=@sifive.com header.s=google header.b="He//zPNq"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:5 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=sifive.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by groat.vger.email (Postfix) with ESMTP id B54E78026618; Tue, 21 Nov 2023 19:06:30 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at groat.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235045AbjKVDGb (ORCPT + 99 others); Tue, 21 Nov 2023 22:06:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229464AbjKVDGa (ORCPT ); Tue, 21 Nov 2023 22:06:30 -0500 Received: from mail-oi1-x229.google.com (mail-oi1-x229.google.com [IPv6:2607:f8b0:4864:20::229]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 96F9190 for ; Tue, 21 Nov 2023 19:06:26 -0800 (PST) Received: by mail-oi1-x229.google.com with SMTP id 5614622812f47-3b833e11c96so822717b6e.0 for ; Tue, 21 Nov 2023 19:06:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; t=1700622385; x=1701227185; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=n4I/LD7GmsgMbduRtQjHbuBVYFqV+JeYB9eIa+Lz0UU=; b=He//zPNqCvhzPY85ocBT3g/uIKaGcbWfxyFWQMDuVsPK1bFRVJqEJTvkEwZl75olGl yJlr/0vRMaQaQzHsYqYRh4NgHJo6897Ivwp/hGCLTNF8DPL0Ee6r9gWJUn9XeXhHFZxt /d/1yviEggLz/AFR9uVAfh0ROXxIh1SMFqY38q4kTbAwVqHSlVRgCsyAPNZVfceDS6zf m55xg28TO3pH/svWuDChaOL80oPqtvdBUx3rV2LDVHSpWaUxlOzXk4/WYVRe5/Ffe12V RHFhFv37EeVTWZ79vg20ya4/gFCGZ/drVjHcP3XzfACsQiUH7qjGLmHK8/Cg7YRJHGER y7EQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1700622385; x=1701227185; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=n4I/LD7GmsgMbduRtQjHbuBVYFqV+JeYB9eIa+Lz0UU=; b=TSFa+2wUiVUxR15LH3y57G6s0YhNBH1CmmyC/Am/7ilajcg9m4lMVg1mky7xUI66st J/Um+UV2XsfZqrgWE4WjHTAQtyqlHo/1odVrJ8Kma1Ngj8+kSbwTWHMmh13NPKXnYUIL /JX02Jk7reyk6iYSsKedad5ClpSghpc7TJW8BRsN5Kh5Mc7RWH1Qyen0PaCg9H/Nb1gi Ff69dyq1qVKlypV5tnrDtMNubcRRn2sc15rRlcyXoxDOCTuJJDX4iPuYeaQSHiymaXty Ks5JT1OPE1rJi4Ttx1VvHd0xQVsyEKTiubOm56B8iEhXgEu/jx2uwCBD6BNWWfAn12vq PrBQ== X-Gm-Message-State: AOJu0Yw+w9nEqM3m9zSs+knqf28Rw1GGPFxrz0Is0Gt9V61MYKoG2Uo0 AN/cW30uav2erCDhmaZwYVIv2A== X-Received: by 2002:a05:6808:bce:b0:3b8:3ec6:8a41 with SMTP id o14-20020a0568080bce00b003b83ec68a41mr673776oik.45.1700622383389; Tue, 21 Nov 2023 19:06:23 -0800 (PST) Received: from sw06.internal.sifive.com ([4.53.31.132]) by smtp.gmail.com with ESMTPSA id s2-20020aa78282000000b006a77343b0ccsm8614917pfm.89.2023.11.21.19.06.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Nov 2023 19:06:23 -0800 (PST) From: Samuel Holland To: Palmer Dabbelt , Harry Wentland , Leo Li , Rodrigo Siqueira , linux-riscv@lists.infradead.org Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, David Airlie , =?utf-8?q?Christian_K=C3=B6nig?= , Alex Deucher , Pan Xinhui , Daniel Vetter , amd-gfx@lists.freedesktop.org, Samuel Holland Subject: [PATCH 0/3] riscv: Add kernel-mode FPU support for amdgpu Date: Tue, 21 Nov 2023 19:05:12 -0800 Message-ID: <20231122030621.3759313-1-samuel.holland@sifive.com> X-Mailer: git-send-email 2.42.0 MIME-Version: 1.0 X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on groat.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (groat.vger.email [0.0.0.0]); Tue, 21 Nov 2023 19:06:31 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1783231831744835698 X-GMAIL-MSGID: 1783231831744835698 This series allows using newer AMD GPUs (e.g. Navi) on RISC-V boards such as SiFive's HiFive Unmatched. Those GPUs need CONFIG_DRM_AMD_DC_FP to initialize, which requires kernel-mode FPU support. I'm sending these patches as one series so there is a user along with the infrastructure being added. I assume patch 3 would be merged separately, after patches 1-2 are merged. Samuel Holland (3): riscv: Add support for kernel-mode FPU riscv: Factor out riscv-march-y to a separate Makefile drm/amd/display: Support DRM_AMD_DC_FP on RISC-V arch/riscv/Makefile | 12 +----------- arch/riscv/Makefile.isa | 15 +++++++++++++++ arch/riscv/include/asm/switch_to.h | 14 ++++++++++++++ arch/riscv/kernel/process.c | 3 +++ drivers/gpu/drm/amd/display/Kconfig | 5 ++++- drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c | 6 ++++-- drivers/gpu/drm/amd/display/dc/dml/Makefile | 6 ++++++ drivers/gpu/drm/amd/display/dc/dml2/Makefile | 6 ++++++ 8 files changed, 53 insertions(+), 14 deletions(-) create mode 100644 arch/riscv/Makefile.isa