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[142.68.25.194]) by smtp.gmail.com with ESMTPSA id h22-20020ac85056000000b003d5aae2182dsm8863730qtm.29.2023.03.29.16.42.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Mar 2023 16:42:00 -0700 (PDT) Received: from jgg by wakko with local (Exim 4.95) (envelope-from ) id 1phfQW-004hQQ-86; Wed, 29 Mar 2023 20:42:00 -0300 Date: Wed, 29 Mar 2023 20:42:00 -0300 From: Jason Gunthorpe To: Steven Price Cc: Heiko Stuebner , Joerg Roedel , Will Deacon , Robin Murphy , iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org Subject: Re: [PATCH v2] iommu/rockchip: Add missing set_platform_dma_ops callback Message-ID: References: <20230324111127.221640-1-steven.price@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230324111127.221640-1-steven.price@arm.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 24, 2023 at 11:11:27AM +0000, Steven Price wrote: > Similar to exynos, we need a set_platform_dma_ops() callback for proper > operation on ARM 32 bit after recent changes in the IOMMU framework > (detach ops removal). But also the use of a NULL domain is confusing. > > Rework the code to have a singleton rk_identity_domain which is assigned > to domain when using an identity mapping rather than "detaching". This > makes the code easier to reason about. > > Signed-off-by: Steven Price > --- > Changes since v1[1]: > > * Reworked the code to avoid a NULL domain, instead a singleton > rk_identity_domain is used instead. The 'detach' language is no > longer used. > > [1] https://lore.kernel.org/r/20230315164152.333251-1-steven.price%40arm.com > > drivers/iommu/rockchip-iommu.c | 50 ++++++++++++++++++++++++++-------- > 1 file changed, 39 insertions(+), 11 deletions(-) Aside from the pm stuff this looks OK to me Reviewed-by: Jason Gunthorpe Thanks, Jason 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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7FD66C6FD18 for ; Wed, 29 Mar 2023 23:42:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=zKe8UJCeKFHnk4+o76XAMu9r/QeyGSPILunM6Jp9qsw=; b=RsaulLOntYprSl 2ZpNP9C71v1Kqwdo6Vkx9lj/7o7Mr/txmVj3EVvMLUIYt0ZVC6MKoNvuwdqFNpZ1U/50sLsr+yw5R tl9eCiVbPIugMQcz9yePhL7wg4IQBuhU4lfj3wu5/++0VRZ9LF/oR2qDm+JPn5R3mGs4ZIaqx03sQ 42de2XtjxBM/Cl1PsAZ4UNSDj/EgNp8EyJRwlcsk14t3v+YPIprqimMTzg1vo+Fv7NIMKEO7yaSTq gwgWfy9XTo8icJmeSJhKbRGhaKAmqjW3JBWg3Rb/koLWzNy308/bZkH7SMoeYKYPoRBLMGJNpYStA fJo99ZmrbebwspQAjOCg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1phfQh-0025Po-0q; Wed, 29 Mar 2023 23:42:11 +0000 Received: from mail-qt1-x831.google.com ([2607:f8b0:4864:20::831]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1phfQb-0025NI-2g for linux-rockchip@lists.infradead.org; Wed, 29 Mar 2023 23:42:07 +0000 Received: by mail-qt1-x831.google.com with SMTP id t19so16736190qta.12 for ; Wed, 29 Mar 2023 16:42:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; t=1680133321; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=M7C+py6MtCoeCMOtw25BrlCO3RIdyKIetyPlMUWcAxQ=; b=or5zOdb0THcrHSRrNF/aWpqr5y5XACt17c51B2fuOW5sIxoj2mxKk9QPCHXd0weuMi hnjPrhDD9X00VxhDRyGWzEdQaeUnYGGNVBIvm9NdJ0z50h4PG9uK/AbqfIt+KuEViqwk JMM5cDJ2p6Ibr/BwfCk3C1SKBmRh1EslZACPJQ899Ch1m4XCYwbv+spFie8OO9H1NGMd dSWXfMR537z5wT9f+bGJgtTobSqzNyVbAqczhBYbiJ434wSDGKN+LAwp1+ntSjG3vP2F N7qWsyB3f+eC4E5HMMZTbKMLErH/sElNNBOzKtXz/YGwiDkAtAAhK+4KWLoTciVd0//H yxpA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680133321; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=M7C+py6MtCoeCMOtw25BrlCO3RIdyKIetyPlMUWcAxQ=; b=VK35J+ekI8c5QUVNT33fNUj2hWc4QQNB2Ek5ciURkwf7U/4QizZJCudJbBCXo4HTjA tVQ+PMTo2YIjA8tbC62KowzRSqd8WtkYW+rTSdpngExTL2OBxubjJNNA1lRhXgFJA4da R0UMdXHExOoG9PmsSrf6uOmhSrpiR2LHMw7WzFxXLKaMgEWTzPZ4C3qscBHVd6A5fNvV 6gXqfZ7YHevP2Qf0FOz1hz3ypvz5UC65a51bPlycnGZwOuScQA2xa5zhCpCNHsLYVQLN RAMgu8wWtOrQLwTgqJbW4arsqvx8unKmhdQU0vyCULh+kLjBHxlrOINXDo/T/T8H67XZ USyQ== X-Gm-Message-State: AO0yUKUMf5bECZEqFZrbynDZGTlYg8Gp2KF5uOdCJJ2J2GskL0V+NIHx zfOiCvDZ9McUUZ59hhF5QR2+uA== X-Google-Smtp-Source: AK7set/r+pGsJrPMn0D9D6pkZb7SUCn2k/XDNs/gApUMrPEx0RFz+B78D/mL8S9HzmDoO+y4IPCuSQ== X-Received: by 2002:a05:622a:1ba3:b0:3e3:98b5:69c2 with SMTP id bp35-20020a05622a1ba300b003e398b569c2mr26020425qtb.62.1680133321368; Wed, 29 Mar 2023 16:42:01 -0700 (PDT) Received: from ziepe.ca (hlfxns017vw-142-68-25-194.dhcp-dynamic.fibreop.ns.bellaliant.net. [142.68.25.194]) by smtp.gmail.com with ESMTPSA id h22-20020ac85056000000b003d5aae2182dsm8863730qtm.29.2023.03.29.16.42.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Mar 2023 16:42:00 -0700 (PDT) Received: from jgg by wakko with local (Exim 4.95) (envelope-from ) id 1phfQW-004hQQ-86; Wed, 29 Mar 2023 20:42:00 -0300 Date: Wed, 29 Mar 2023 20:42:00 -0300 From: Jason Gunthorpe To: Steven Price Cc: Heiko Stuebner , Joerg Roedel , Will Deacon , Robin Murphy , iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org Subject: Re: [PATCH v2] iommu/rockchip: Add missing set_platform_dma_ops callback Message-ID: References: <20230324111127.221640-1-steven.price@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20230324111127.221640-1-steven.price@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230329_164206_168252_28A7CB79 X-CRM114-Status: GOOD ( 13.83 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org On Fri, Mar 24, 2023 at 11:11:27AM +0000, Steven Price wrote: > Similar to exynos, we need a set_platform_dma_ops() callback for proper > operation on ARM 32 bit after recent changes in the IOMMU framework > (detach ops removal). But also the use of a NULL domain is confusing. > > Rework the code to have a singleton rk_identity_domain which is assigned > to domain when using an identity mapping rather than "detaching". This > makes the code easier to reason about. > > Signed-off-by: Steven Price > --- > Changes since v1[1]: > > * Reworked the code to avoid a NULL domain, instead a singleton > rk_identity_domain is used instead. The 'detach' language is no > longer used. > > [1] https://lore.kernel.org/r/20230315164152.333251-1-steven.price%40arm.com > > drivers/iommu/rockchip-iommu.c | 50 ++++++++++++++++++++++++++-------- > 1 file changed, 39 insertions(+), 11 deletions(-) Aside from the pm stuff this looks OK to me Reviewed-by: Jason Gunthorpe Thanks, Jason _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip 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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 19606C74A5B for ; Wed, 29 Mar 2023 23:43:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=KvciuYUAX/sLvnJvabrfkOfJoTqOwMuRadk19mfAZgo=; b=lDwxk5F3gco3TW sK83P3we83vUmFczhmsgdMqhOfjcR5eTPI7DQdn+yzBYphRMLGDBzdi2hTkenLFN0NULNcZXfQUKH BrU23Yo7OJ3aTgSqLZ8czFxma0mRUH2jUlwgul1JP0J3hqQ5SJvAvduCill0MR5K+RfwG4QQRV1x9 DeT7pm8h9w3hgEAcHw5E6BRuoF5YRiQZD9H5VUFVkQooywYpm/QP8sRMmxyjFOJGiu4OTp65rIJNV t9OiDIT0Tkn80UYABr5IxKhVaDzlIp7WE3YBZmKz/pF9Owc+SdDHXe8jQLRv2Njj5x2doiq+ZlxkJ 1LLXzzat7gDJc1Cb7k3Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1phfQg-0025PH-15; Wed, 29 Mar 2023 23:42:10 +0000 Received: from mail-qt1-x82c.google.com ([2607:f8b0:4864:20::82c]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1phfQb-0025NH-2u for linux-arm-kernel@lists.infradead.org; Wed, 29 Mar 2023 23:42:07 +0000 Received: by mail-qt1-x82c.google.com with SMTP id h16so9955198qtn.7 for ; Wed, 29 Mar 2023 16:42:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; t=1680133321; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=M7C+py6MtCoeCMOtw25BrlCO3RIdyKIetyPlMUWcAxQ=; b=or5zOdb0THcrHSRrNF/aWpqr5y5XACt17c51B2fuOW5sIxoj2mxKk9QPCHXd0weuMi hnjPrhDD9X00VxhDRyGWzEdQaeUnYGGNVBIvm9NdJ0z50h4PG9uK/AbqfIt+KuEViqwk JMM5cDJ2p6Ibr/BwfCk3C1SKBmRh1EslZACPJQ899Ch1m4XCYwbv+spFie8OO9H1NGMd dSWXfMR537z5wT9f+bGJgtTobSqzNyVbAqczhBYbiJ434wSDGKN+LAwp1+ntSjG3vP2F N7qWsyB3f+eC4E5HMMZTbKMLErH/sElNNBOzKtXz/YGwiDkAtAAhK+4KWLoTciVd0//H yxpA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680133321; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=M7C+py6MtCoeCMOtw25BrlCO3RIdyKIetyPlMUWcAxQ=; b=uBT91ERR7cFGvFtz0pxTIkWUXmmbHqa8x68nGGeFNZ5+dG3qeHL1SDCkCrygJ0jPpN VL5vdbuVoaQfSkwVEZiwUA3THQxGvsJk0hElAiMsaOX/M6mPwCModguQV3YF6E0eHot0 GgEgt0Xw5Rhmc6luiINZOKhUGRLm063yr4z0UzG6UgnhN0H7D4DYRK4q9UUdrLWGdSBt dH7LPxAB9HFj3qP3Yxvr6QodEh6zP5ZCUnTv/FBaYltqiMoOyBUtgwSh218K4trYjjBh VySYoS7ET7i8Phc1qJlwzcXKUa50NI7skOU8WVfNocouDqB/Uvdpd1ygy+ppHr6yGKkj 31Nw== X-Gm-Message-State: AO0yUKUKKMaFEd47ajL+xOxm/hb8Bf8hv2Qip4K0vkv2s2zaq5cOUdi3 aTHSbW0KdkhVxrdQKwMIiJSykg== X-Google-Smtp-Source: AK7set/r+pGsJrPMn0D9D6pkZb7SUCn2k/XDNs/gApUMrPEx0RFz+B78D/mL8S9HzmDoO+y4IPCuSQ== X-Received: by 2002:a05:622a:1ba3:b0:3e3:98b5:69c2 with SMTP id bp35-20020a05622a1ba300b003e398b569c2mr26020425qtb.62.1680133321368; Wed, 29 Mar 2023 16:42:01 -0700 (PDT) Received: from ziepe.ca (hlfxns017vw-142-68-25-194.dhcp-dynamic.fibreop.ns.bellaliant.net. [142.68.25.194]) by smtp.gmail.com with ESMTPSA id h22-20020ac85056000000b003d5aae2182dsm8863730qtm.29.2023.03.29.16.42.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Mar 2023 16:42:00 -0700 (PDT) Received: from jgg by wakko with local (Exim 4.95) (envelope-from ) id 1phfQW-004hQQ-86; Wed, 29 Mar 2023 20:42:00 -0300 Date: Wed, 29 Mar 2023 20:42:00 -0300 From: Jason Gunthorpe To: Steven Price Cc: Heiko Stuebner , Joerg Roedel , Will Deacon , Robin Murphy , iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org Subject: Re: [PATCH v2] iommu/rockchip: Add missing set_platform_dma_ops callback Message-ID: References: <20230324111127.221640-1-steven.price@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20230324111127.221640-1-steven.price@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230329_164206_168997_5FCB972C X-CRM114-Status: GOOD ( 15.01 ) X-BeenThere: linux-arm-kernel@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="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Mar 24, 2023 at 11:11:27AM +0000, Steven Price wrote: > Similar to exynos, we need a set_platform_dma_ops() callback for proper > operation on ARM 32 bit after recent changes in the IOMMU framework > (detach ops removal). But also the use of a NULL domain is confusing. > > Rework the code to have a singleton rk_identity_domain which is assigned > to domain when using an identity mapping rather than "detaching". This > makes the code easier to reason about. > > Signed-off-by: Steven Price > --- > Changes since v1[1]: > > * Reworked the code to avoid a NULL domain, instead a singleton > rk_identity_domain is used instead. The 'detach' language is no > longer used. > > [1] https://lore.kernel.org/r/20230315164152.333251-1-steven.price%40arm.com > > drivers/iommu/rockchip-iommu.c | 50 ++++++++++++++++++++++++++-------- > 1 file changed, 39 insertions(+), 11 deletions(-) Aside from the pm stuff this looks OK to me Reviewed-by: Jason Gunthorpe Thanks, Jason _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel