From patchwork Mon Aug 22 15:06:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 85467 Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1oQ93l-00C2M4-VI; Mon, 22 Aug 2022 15:09:50 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236112AbiHVPJp (ORCPT + 1 other); Mon, 22 Aug 2022 11:09:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55804 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236111AbiHVPJQ (ORCPT ); Mon, 22 Aug 2022 11:09:16 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A9EA73E76B for ; Mon, 22 Aug 2022 08:07:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1661180800; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=bT3RjR6398OUx/hu3Mq6bp5ZvvtanEGPJBnrbmPxr5o=; b=DuspbTmijZD8G/7L6f0xDC/S4gDimNk4I4CVv9f8M86KmKMLAz0IWao8D0L7S86aImZiJJ gFyIdptD+IXschpR14KV9Ne/96Gl6qqWsVaNf0ZdICSfey1WzleYQ/6Js1NMVMtb8aL1vS KMvXjROnYPL+u78fBtDKP1zjj9Jp1Dg= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-147-IQEqyB5NM5eP7jTHMoDFYQ-1; Mon, 22 Aug 2022 11:06:34 -0400 X-MC-Unique: IQEqyB5NM5eP7jTHMoDFYQ-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id B11AC299E75E; Mon, 22 Aug 2022 15:06:33 +0000 (UTC) Received: from x1.localdomain.com (unknown [10.39.193.25]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6D9EF40CF8E8; Mon, 22 Aug 2022 15:06:31 +0000 (UTC) From: Hans de Goede To: Mauro Carvalho Chehab , Sakari Ailus Cc: Hans de Goede , Tsuchiya Yuto , Andy Shevchenko , Yury Luneff , Nable , andrey.i.trufanov@gmail.com, Fabio Aiuto , linux-media@vger.kernel.org, linux-staging@lists.linux.dev Subject: [PATCH v2 09/13] media: atomisp: hmm_bo: Further simplify alloc_private_pages() Date: Mon, 22 Aug 2022 17:06:06 +0200 Message-Id: <20220822150610.45186-9-hdegoede@redhat.com> In-Reply-To: <20220822150610.45186-1-hdegoede@redhat.com> References: <20220822150610.45186-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.11.54.1 X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_LOW, SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -2.5 (--) X-LSpam-Report: No, score=-2.5 required=5.0 tests=BAYES_00=-1.9,DKIMWL_WL_HIGH=0.001,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no Further simplify alloc_private_pages(). Signed-off-by: Hans de Goede --- .../staging/media/atomisp/pci/hmm/hmm_bo.c | 29 ++++--------------- 1 file changed, 6 insertions(+), 23 deletions(-) diff --git a/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c b/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c index 275314241263..bb52171a9d87 100644 --- a/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c +++ b/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c @@ -642,21 +642,11 @@ static void free_private_bo_pages(struct hmm_buffer_object *bo, /*Allocate pages which will be used only by ISP*/ static int alloc_private_pages(struct hmm_buffer_object *bo) { - int ret; - unsigned int pgnr, blk_pgnr, alloc_pgnr; + const gfp_t gfp = __GFP_NOWARN | __GFP_RECLAIM | __GFP_FS; struct page *pages; - gfp_t gfp = GFP_NOWAIT | __GFP_NOWARN; /* REVISIT: need __GFP_FS too? */ - int i, j; - - pgnr = bo->pgnr; - - i = 0; - alloc_pgnr = 0; - - while (pgnr) { - gfp &= ~GFP_NOWAIT; - gfp |= __GFP_RECLAIM | __GFP_FS; + int i, ret; + for (i = 0; i < bo->pgnr; i++) { pages = alloc_pages(gfp, 0); // alloc 1 page if (unlikely(!pages)) { dev_err(atomisp_dev, @@ -664,12 +654,10 @@ static int alloc_private_pages(struct hmm_buffer_object *bo) __func__); goto cleanup; } else { - blk_pgnr = 1; - /* * set memory to uncacheable -- UC_MINUS */ - ret = set_pages_uc(pages, blk_pgnr); + ret = set_pages_uc(pages, 1); if (ret) { dev_err(atomisp_dev, "set page uncacheablefailed.\n"); @@ -679,18 +667,13 @@ static int alloc_private_pages(struct hmm_buffer_object *bo) goto cleanup; } - for (j = 0; j < blk_pgnr; j++, i++) { - bo->pages[i] = pages + j; - } - - pgnr -= blk_pgnr; + bo->pages[i] = pages; } } return 0; cleanup: - alloc_pgnr = i; - free_private_bo_pages(bo, alloc_pgnr); + free_private_bo_pages(bo, i); return -ENOMEM; }