From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f51.google.com (mail-wr1-f51.google.com [209.85.221.51]) (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 A121C70 for ; Sun, 6 Jun 2021 17:14:05 +0000 (UTC) Received: by mail-wr1-f51.google.com with SMTP id i94so9658033wri.4 for ; Sun, 06 Jun 2021 10:14:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=t0ngfq8v4GDUgFESlrE0JELVOjRgUmmBaP6fcNBr54I=; b=uWrJ+arILlxT7ZwHMghPIzGKOCH6iid96CZIwxC/S5EClYcLbU8ECWa+j/LqE5fiXs Z56awwob2HCfTl6fzAYc37lQfBRjiSDTxEduhD15o5JOPzNeXQg/3f4/yhAAtTEYOGl9 7zUDUp3uZTwJ6UNpK6qwbWIC9jRmOLyF45Ry/6DEtr26llfqZc0eA89WJzixTeuXNfHk QBzS8cHFX9MOmpp/AUktuc0hqI45DQRORCJIOV0jI7q4mGS69g+fVsSAcwraP/kXf2M1 ulcvHVSlAdgw88aoSZTdGCniDRfpzW1MrNRGwlDIOyUMGEQDsdUEWZSVKKTgvz1Nxq9A H4UQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=t0ngfq8v4GDUgFESlrE0JELVOjRgUmmBaP6fcNBr54I=; b=F0TlXet3V/yBPanxcLsgT5/vVy5aJRhnPZ+9JSMBv4po4mTmLJcpM5yBAn6UK1hwuV DqkTCzP6c+37IivUPVTjY+nR8fDHlQGcVuZQixs/e34QAm6ZkY3UHLrZMXXhxJ2cpe/R gNfD75vugBpOLmSxbEXJvRPqeKFsHNRMe4ftBu2X+BtLQmd3cGjdCd1al3Q2Kmoy9aKD tVx5UrUojPuzKi8FuYiFUyckwsldNnZwzbAkBQH4pu/zw+eAnnKa2APBu6fagVm1T/GG +eC+LB1U3J5uLqaqM8SU4WhYH3utdjAddDJOT7i/KI5+BucUVGfimQEfLF8k5YN7C/X9 CczA== X-Gm-Message-State: AOAM533lol6RuT1kRj4w8f1p52TmqoR59ShNsUvGr9LVEeiIXTtB8+5k Uoxcp/cp3T374ALpSQMKn1w= X-Google-Smtp-Source: ABdhPJz8CAyOeyOFrSeMZEwE9Secrxj8SxDI4wHQJzhlpIGI+BLpzrACIWxuIhOY9CX+GwwQ8KbewQ== X-Received: by 2002:adf:e5c7:: with SMTP id a7mr13309222wrn.117.1622999644208; Sun, 06 Jun 2021 10:14:04 -0700 (PDT) Received: from jernej-laptop.localnet (cpe-86-58-17-133.cable.triera.net. [86.58.17.133]) by smtp.gmail.com with ESMTPSA id k11sm14529330wmj.1.2021.06.06.10.14.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 06 Jun 2021 10:14:03 -0700 (PDT) From: Jernej =?utf-8?B?xaBrcmFiZWM=?= To: Guo Ren Cc: Anup Patel , Palmer Dabbelt , Arnd Bergmann , wens@csie.org, maxime@cerno.tech, Drew Fustini , liush@allwinnertech.com, Wei Wu =?utf-8?B?KOWQtOS8nyk=?= , wefu@redhat.com, linux-riscv , Linux Kernel Mailing List , linux-arch , linux-sunxi@lists.linux.dev, Guo Ren Subject: Re: [RFC PATCH v2 00/11] riscv: Add DMA_COHERENT support for Allwinner D1 Date: Sun, 06 Jun 2021 19:14:02 +0200 Message-ID: <1664140.l4xsYfQU8q@jernej-laptop> In-Reply-To: References: <1622970249-50770-1-git-send-email-guoren@kernel.org> <3110420.cQCZQDpDj9@jernej-laptop> X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" Dne nedelja, 06. junij 2021 ob 18:54:05 CEST je Guo Ren napisal(a): > V5 is not related to the patch series. Don't top post. If that's the case, then your e-mail client messed things up. I got V5 patc= hes=20 in the same thread as board enablement patches and so did mailing list [1]. Best regards, Jernej [1] https://lore.kernel.org/linux-sunxi/ CAJF2gTQ1yvSNthJ2yJkqaYGaJ6OYmf0vbG=3Dhm4ocgnw4DiZbOw@mail.gmail.com/T/#t >=20 > On Mon, Jun 7, 2021 at 12:29 AM Jernej =C5=A0krabec =20 wrote: > > Hi! > >=20 > > Dne nedelja, 06. junij 2021 ob 11:03:55 CEST je guoren@kernel.org=20 napisal(a): > > > From: Guo Ren > > >=20 > > > The RISC-V ISA doesn't yet specify how to query or modify PMAs, so let > > > vendors define the custom properties of memory regions in PTE. > > >=20 > > > This patchset helps SOC vendors to support their own custom interconn= ect > > > coherent solution with PTE attributes. > > >=20 > > > For example, allwinner D1[1] uses T-HEAD C906 as main processor, C906 > > > has > > >=20 > > > two modes in MMU: > > > - Compatible mode, the same as the definitions in spec. > > > - Enhanced mode, add custom DMA_COHERENT attribute bits in PTE which > > > =20 > > > not mentioned in spec. > > >=20 > > > Allwinner D1 needs the enhanced mode to support the DMA type device w= ith > > > non-coherent interconnect in its SOC. C906 uses BITS(63 - 59) as cust= om > > > attribute bits in PTE. > > >=20 > > > The patchset contain 4 parts (asid, pgtable, cmo, soc) which have been > > >=20 > > > tested on D1: > > > - asid: T-HEAD C906 of D1 contains full asid hw facilities which has= no > > > =20 > > > conflict with RISC-V spec, and hope these patches soon could be > > > approved. > > > =20 > > > - pgtable: Using a image-hdr to pass vendor specific information and > > > =20 > > > setup custom PTE attributes in a global struct variable during boot > > > stage. Also it needs define custom protection_map in linux/mm. > > > =20 > > > - cmo: We need deal with dma_sync & icache_sync & __vdso_icache_sync. > > > =20 > > > In this patchset, I just show you how T-HEAD C9xx work, and seems > > > Atish > > > is working for the DMA infrustructure, please let me know the idea. > > > =20 > > > - soc: Add allwinner gmac driver & dts & Kconfig for sunxi test. > > >=20 > > > The patchset could work with linux-5.13-rc4, here is the steps for D1: > > > - Download linux-5.13-rc4 and apply the patchset > > > - make ARCH=3Driscv CROSS_COMPILE=3Driscv64-linux- defconfig > > > - make ARCH=3Driscv CROSS_COMPILE=3Driscv64-linux- Image modules dtbs > > > - mkimage -A riscv -O linux -T kernel -C none -a 0x00200000 -e > > > 0x00200000 > > >=20 > > > -n Linux -d arch/riscv/boot/Image uImage - Download newest opensbi [2= ], > > > build with [3], and get fw_dynamic.bin - Copy uImage, fw_dynamic.bin, > > > allwinner-d1-nezha-kit.dtb into boot partition of TF card. > > >=20 > > > - Plugin the TF card and power on D1. > > >=20 > > > Link: https://linux-sunxi.org/D1 [1] > > > Link: https://github.com/riscv/opensbi branch:master [2] > > > Link: > > > https://github.com/riscv/opensbi/blob/master/docs/platform/thead-c9xx= =2Emd > > > [3] > >=20 > > Some patches are marked with v2 and some V5. It's very confusing. Mark > > them > > with same version in next revision. > >=20 > > Best regards, > > Jernej > >=20 > > > Changes since v1: > > > - Rebase on linux-5.13-rc4 > > > - Support defconfig for different PTE attributes > > > - Support C906 icache_sync > > > - Add Allwinner D1 dts & Kconfig & gmac for testing > > > - Add asid optimization for D1 usage > > >=20 > > > Guo Ren (10): > > > riscv: asid: Use global mappings for kernel pages > > > riscv: asid: Add ASID-based tlbflushing methods > > > riscv: asid: Optimize tlbflush coding convention > > > riscv: pgtable: Fixup _PAGE_CHG_MASK usage > > > riscv: pgtable: Add custom protection_map init > > > riscv: pgtable: Add DMA_COHERENT with custom PTE attributes > > > riscv: cmo: Add dma-noncoherency support > > > riscv: cmo: Add vendor custom icache sync > > > riscv: soc: Initial DTS for Allwinner D1 NeZha board > > > riscv: soc: Add Allwinner SoC kconfig option > > >=20 > > > liush (1): > > > riscv: soc: Allwinner D1 GMAC driver only for temp use > > > =20 > > > arch/riscv/Kconfig | 9 + > > > arch/riscv/Kconfig.socs | 12 + > > > arch/riscv/boot/dts/Makefile | 1 + > > > arch/riscv/boot/dts/allwinner/Makefile | 2 + > > > .../boot/dts/allwinner/allwinner-d1-nezha-kit.dts | 29 + > > > arch/riscv/boot/dts/allwinner/allwinner-d1.dtsi | 100 + > > > arch/riscv/configs/defconfig | 1 + > > > arch/riscv/include/asm/cacheflush.h | 48 +- > > > arch/riscv/include/asm/mmu_context.h | 2 + > > > arch/riscv/include/asm/pgtable-64.h | 8 +- > > > arch/riscv/include/asm/pgtable-bits.h | 20 +- > > > arch/riscv/include/asm/pgtable.h | 44 +- > > > arch/riscv/include/asm/sbi.h | 15 + > > > arch/riscv/include/asm/soc.h | 1 + > > > arch/riscv/include/asm/tlbflush.h | 22 + > > > arch/riscv/include/asm/vendorid_list.h | 1 + > > > arch/riscv/kernel/sbi.c | 19 + > > > arch/riscv/kernel/soc.c | 22 + > > > arch/riscv/kernel/vdso/flush_icache.S | 33 +- > > > arch/riscv/mm/Makefile | 1 + > > > arch/riscv/mm/cacheflush.c | 3 +- > > > arch/riscv/mm/context.c | 2 +- > > > arch/riscv/mm/dma-mapping.c | 53 + > > > arch/riscv/mm/init.c | 26 + > > > arch/riscv/mm/tlbflush.c | 57 +- > > > drivers/net/ethernet/Kconfig | 1 + > > > drivers/net/ethernet/Makefile | 1 + > > > drivers/net/ethernet/allwinnertmp/Kconfig | 17 + > > > drivers/net/ethernet/allwinnertmp/Makefile | 7 + > > > drivers/net/ethernet/allwinnertmp/sunxi-gmac-ops.c | 690 ++++++ > > > drivers/net/ethernet/allwinnertmp/sunxi-gmac.c | 2240 > > >=20 > > > ++++++++++++++++++++ drivers/net/ethernet/allwinnertmp/sunxi-gmac.h = =20 > > > | > > > 258 +++ > > >=20 > > > drivers/net/phy/realtek.c | 2 +- > > > mm/mmap.c | 4 + > > > 34 files changed, 3714 insertions(+), 37 deletions(-) > > > create mode 100644 arch/riscv/boot/dts/allwinner/Makefile > > > create mode 100644 > > > arch/riscv/boot/dts/allwinner/allwinner-d1-nezha-kit.dts > > >=20 > > > create mode 100644 arch/riscv/boot/dts/allwinner/allwinner-d1.dtsi > > > create > > > mode 100644 arch/riscv/mm/dma-mapping.c > > >=20 > > > create mode 100644 drivers/net/ethernet/allwinnertmp/Kconfig > > > create mode 100644 drivers/net/ethernet/allwinnertmp/Makefile > > > create mode 100644 drivers/net/ethernet/allwinnertmp/sunxi-gmac-ops.c > > > create mode 100644 drivers/net/ethernet/allwinnertmp/sunxi-gmac.c > > > create mode 100644 drivers/net/ethernet/allwinnertmp/sunxi-gmac.h 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 X-Spam-Level: X-Spam-Status: No, score=-10.7 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A11E1C47096 for ; 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[86.58.17.133]) by smtp.gmail.com with ESMTPSA id k11sm14529330wmj.1.2021.06.06.10.14.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 06 Jun 2021 10:14:03 -0700 (PDT) From: Jernej =?utf-8?B?xaBrcmFiZWM=?= To: Guo Ren Cc: Anup Patel , Palmer Dabbelt , Arnd Bergmann , wens@csie.org, maxime@cerno.tech, Drew Fustini , liush@allwinnertech.com, Wei Wu =?utf-8?B?KOWQtOS8nyk=?= , wefu@redhat.com, linux-riscv , Linux Kernel Mailing List , linux-arch , linux-sunxi@lists.linux.dev, Guo Ren Subject: Re: [RFC PATCH v2 00/11] riscv: Add DMA_COHERENT support for Allwinner D1 Date: Sun, 06 Jun 2021 19:14:02 +0200 Message-ID: <1664140.l4xsYfQU8q@jernej-laptop> In-Reply-To: References: <1622970249-50770-1-git-send-email-guoren@kernel.org> <3110420.cQCZQDpDj9@jernej-laptop> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210606_101506_536229_996A5167 X-CRM114-Status: GOOD ( 32.23 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org RG5lIG5lZGVsamEsIDA2LiBqdW5paiAyMDIxIG9iIDE4OjU0OjA1IENFU1QgamUgR3VvIFJlbiBu YXBpc2FsKGEpOgo+IFY1IGlzIG5vdCByZWxhdGVkIHRvIHRoZSBwYXRjaCBzZXJpZXMuCgpEb24n dCB0b3AgcG9zdC4KCklmIHRoYXQncyB0aGUgY2FzZSwgdGhlbiB5b3VyIGUtbWFpbCBjbGllbnQg bWVzc2VkIHRoaW5ncyB1cC4gSSBnb3QgVjUgcGF0Y2hlcyAKaW4gdGhlIHNhbWUgdGhyZWFkIGFz IGJvYXJkIGVuYWJsZW1lbnQgcGF0Y2hlcyBhbmQgc28gZGlkIG1haWxpbmcgbGlzdCBbMV0uCgpC ZXN0IHJlZ2FyZHMsCkplcm5lagoKWzFdIGh0dHBzOi8vbG9yZS5rZXJuZWwub3JnL2xpbnV4LXN1 bnhpLwpDQUpGMmdUUTF5dlNOdGhKMnlKa3FhWUdhSjZPWW1mMHZiRz1obTRvY2dudzREaVpiT3dA bWFpbC5nbWFpbC5jb20vVC8jdAoKPiAKPiBPbiBNb24sIEp1biA3LCAyMDIxIGF0IDEyOjI5IEFN 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