From patchwork Wed Mar 30 20:47:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rob Clark X-Patchwork-Id: 12796359 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 992C9C433F5 for ; Wed, 30 Mar 2022 20:48:26 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3669610E905; Wed, 30 Mar 2022 20:48:25 +0000 (UTC) Received: from mail-pj1-x1030.google.com (mail-pj1-x1030.google.com [IPv6:2607:f8b0:4864:20::1030]) by gabe.freedesktop.org (Postfix) with ESMTPS id 37E9010E97A; Wed, 30 Mar 2022 20:48:12 +0000 (UTC) Received: by mail-pj1-x1030.google.com with SMTP id a16-20020a17090a6d9000b001c7d6c1bb13so1325879pjk.4; Wed, 30 Mar 2022 13:48:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=tOn9Tor8polPNHF4xDcLky0lDAw9l38xozLRMXI1//U=; b=UPK7hL40Q2YvCF9wKbtwYgJsCkDD4S3VjnoBgdNSt+WHM9zo7jOHSYtbtzE/pU7cc0 vWJUocRHernfEg73QBM9SK2P7rVRf+2qdpt+ZCnjAmUNaIeYI02wik/UvelXsmEXugFg mTdOEsnNaUwfQ3W9rElImmVHtS95BnTfIj0w4SFFy33B7vRuFqiyB0rLTQpND+vxfjtH rCYoA7o2YWALAs1UeWMk1if0oh2cESd++RhA4sJ9c4ITBqScF7/6YyldnC+nq+FLVFGB 8O8zqvBh1YQAdW1FoWS9e2nQjbVz42hJ+8eewUQecBhbeb47p8JtIXXDUNSDVXTrK/WH dwSg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=tOn9Tor8polPNHF4xDcLky0lDAw9l38xozLRMXI1//U=; b=7mWX7ve6pFp/a/NvbNMPJi6+dtOeM7cRxyrSmRbuSEzrSQoxm0v75aIErVuTWbZSfh +u9kD4PbY0DMKWqMb782DOd60Yq31ATIRfOl6CuZ5J12d/SizCPBwn9PS7YGuXOUzOce KpjbLEzl+BrZaGEbbSLn5lWSmIw0IdNrrQELN1p7TVwicCZEsRdcOlG29w5q0v7aIWa/ w9V/zz7fQuf3O9UdqAbZKcGKDLsXtyX1VbqzAyRvUXdSR3QaUHOzePF1asKe/Q3mJcue iKSJuqUK+9JYjKjClOZMdINNoCAyCq4EfXEWZUH9CvDF1SKaOeoMJIeO256ziT0RS1D3 4CvA== X-Gm-Message-State: AOAM533jJNPaa3jP9blifwGQSH8Oj8kiMAsGoKNhr73pG6nEd3VU2Fwk bmhbPgSn/8qBkBB7mBrgK7pjQtSb7CY= X-Google-Smtp-Source: ABdhPJwJYRnX56RJoMLOVKWPDbw1s9PqMDGKWuJcsQPWKmnOylUzAMHvewFPAxCbjEv4C8yhrsXlMQ== X-Received: by 2002:a17:902:c745:b0:151:e8fa:629b with SMTP id q5-20020a170902c74500b00151e8fa629bmr38131930plq.90.1648673291159; Wed, 30 Mar 2022 13:48:11 -0700 (PDT) Received: from localhost ([2a00:79e1:abd:4a00:2703:3c72:eb1a:cffd]) by smtp.gmail.com with ESMTPSA id d21-20020a056a0024d500b004fb0e7c7c3bsm21656825pfv.161.2022.03.30.13.48.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Mar 2022 13:48:10 -0700 (PDT) From: Rob Clark To: dri-devel@lists.freedesktop.org Subject: [PATCH v2 07/10] drm/msm/gem: Rework vma lookup and pin Date: Wed, 30 Mar 2022 13:47:52 -0700 Message-Id: <20220330204804.660819-8-robdclark@gmail.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220330204804.660819-1-robdclark@gmail.com> References: <20220330204804.660819-1-robdclark@gmail.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rob Clark , David Airlie , linux-arm-msm@vger.kernel.org, Abhinav Kumar , open list , Sean Paul , Dmitry Osipenko , Dmitry Baryshkov , freedreno@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Rob Clark Combines duplicate vma lookup in the get_and_pin path. Signed-off-by: Rob Clark Reviewed-by: Dmitry Osipenko --- drivers/gpu/drm/msm/msm_gem.c | 50 ++++++++++++++++++----------------- 1 file changed, 26 insertions(+), 24 deletions(-) diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index deafae6feaa8..218744a490a4 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -376,39 +376,40 @@ put_iova_vmas(struct drm_gem_object *obj) } } -static int get_iova_locked(struct drm_gem_object *obj, - struct msm_gem_address_space *aspace, uint64_t *iova, +static struct msm_gem_vma *get_vma_locked(struct drm_gem_object *obj, + struct msm_gem_address_space *aspace, u64 range_start, u64 range_end) { struct msm_gem_vma *vma; - int ret = 0; GEM_WARN_ON(!msm_gem_is_locked(obj)); vma = lookup_vma(obj, aspace); if (!vma) { + int ret; + vma = add_vma(obj, aspace); if (IS_ERR(vma)) - return PTR_ERR(vma); + return vma; ret = msm_gem_init_vma(aspace, vma, obj->size, range_start, range_end); if (ret) { del_vma(vma); - return ret; + return ERR_PTR(ret); } + } else { + GEM_WARN_ON(vma->iova < range_start); + GEM_WARN_ON((vma->iova + obj->size) > range_end); } - *iova = vma->iova; - return 0; + return vma; } -static int msm_gem_pin_iova(struct drm_gem_object *obj, - struct msm_gem_address_space *aspace) +static int msm_gem_pin_iova(struct drm_gem_object *obj, struct msm_gem_vma *vma) { struct msm_gem_object *msm_obj = to_msm_bo(obj); - struct msm_gem_vma *vma; struct page **pages; int ret, prot = IOMMU_READ; @@ -426,15 +427,11 @@ static int msm_gem_pin_iova(struct drm_gem_object *obj, if (GEM_WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) return -EBUSY; - vma = lookup_vma(obj, aspace); - if (GEM_WARN_ON(!vma)) - return -EINVAL; - pages = get_pages(obj); if (IS_ERR(pages)) return PTR_ERR(pages); - ret = msm_gem_map_vma(aspace, vma, prot, msm_obj->sgt, obj->size); + ret = msm_gem_map_vma(vma->aspace, vma, prot, msm_obj->sgt, obj->size); if (!ret) msm_obj->pin_count++; @@ -446,19 +443,18 @@ static int get_and_pin_iova_range_locked(struct drm_gem_object *obj, struct msm_gem_address_space *aspace, uint64_t *iova, u64 range_start, u64 range_end) { - u64 local; + struct msm_gem_vma *vma; int ret; GEM_WARN_ON(!msm_gem_is_locked(obj)); - ret = get_iova_locked(obj, aspace, &local, - range_start, range_end); - - if (!ret) - ret = msm_gem_pin_iova(obj, aspace); + vma = get_vma_locked(obj, aspace, range_start, range_end); + if (IS_ERR(vma)) + return PTR_ERR(vma); + ret = msm_gem_pin_iova(obj, vma); if (!ret) - *iova = local; + *iova = vma->iova; return ret; } @@ -500,10 +496,16 @@ int msm_gem_get_and_pin_iova(struct drm_gem_object *obj, int msm_gem_get_iova(struct drm_gem_object *obj, struct msm_gem_address_space *aspace, uint64_t *iova) { - int ret; + struct msm_gem_vma *vma; + int ret = 0; msm_gem_lock(obj); - ret = get_iova_locked(obj, aspace, iova, 0, U64_MAX); + vma = get_vma_locked(obj, aspace, 0, U64_MAX); + if (IS_ERR(vma)) { + ret = PTR_ERR(vma); + } else { + *iova = vma->iova; + } msm_gem_unlock(obj); return ret;