Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp6446002yba; Tue, 14 May 2019 07:42:43 -0700 (PDT) X-Google-Smtp-Source: APXvYqyx+lMy+PSVgWsMNoGRmi0QlQnFJk3creCLzjdW7OCvKi9M8W39S5JlTabG6zVUA5v5vbEg X-Received: by 2002:a17:902:bb89:: with SMTP id m9mr153511pls.188.1557844963668; Tue, 14 May 2019 07:42:43 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1557844963; cv=none; d=google.com; s=arc-20160816; b=UeGj/JSgvJLjoeBVVQgVOApq9ek0t6WLdcbyZLjQV22LvMeD8r6QQlJ2+0mhZ2Opzl c2yINLG5jh4GTJSqdIoNI8NuL8xHaohg5mVxgcE1UybFPisIIds58S3BdAZf5TFeYphp 4VXeuHAznyQ8S1mLyuBZCfGPzsG0qpM8WGnC8Kp3VyJgZ8CHNuU5um/PtrG2mtvlzpos vHVeOc/ItCaDhigSbEwHAmqPK7BC9L5uIZ4jrGKiFB2YTfDte7m0BNJ9nMrOoF81RRG8 flhTbzMhBXYlNmCmXwW7cOsbm480ovWwpiIoG/8pnCff5XPZXQT9TpZx5v2IsE+RGsd+ aVPw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:message-id:date:subject:cc:to:from; bh=/Gku3o4C4mZTYhqouKqWY2DzoCmWOIir+kSmesSRvYc=; b=pm5xKdH+l43GL1Rvlj1x222lRkFFyU7c+G6JUZLKh52wUBlU26n/ABFGtna0kiE/vt cJ4IKvDJG0ca4lBQD/lTGK59bmCyqk+SPK/7Iva+dJgepZEYrhl3z5dNbJp3dLnfP3/L 2Pnsemuw0CwL1PBBD4FqywiVcaUTgZeHlvLD5ro3TbUm0xHXwNY8HsnqA8sAxEWQ6XrE ncq7+Ga6t8D9MPor+bAlopCZkkG4C5WujvbqBymaT6k6OESlTizBYSg/jzbA7ZF+EVe0 +1KwkNzL/Dilmq+UOSzUHxjZvMHIJC6EA6m/f1P0ZTwMAM+dJzPCiD5KnUHhCzCh5fTx 1eIQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=nxp.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id j34si18657173pgb.64.2019.05.14.07.42.28; Tue, 14 May 2019 07:42:43 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=nxp.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726338AbfENOiM (ORCPT + 99 others); Tue, 14 May 2019 10:38:12 -0400 Received: from inva021.nxp.com ([92.121.34.21]:56938 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725854AbfENOiM (ORCPT ); Tue, 14 May 2019 10:38:12 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id B83F0200030; Tue, 14 May 2019 16:38:10 +0200 (CEST) Received: from inva024.eu-rdc02.nxp.com (inva024.eu-rdc02.nxp.com [134.27.226.22]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id AC05220022E; Tue, 14 May 2019 16:38:10 +0200 (CEST) Received: from fsr-ub1864-101.ea.freescale.net (fsr-ub1864-101.ea.freescale.net [10.171.82.13]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id F37B82061C; Tue, 14 May 2019 16:38:09 +0200 (CEST) From: laurentiu.tudor@nxp.com To: hch@lst.de, stern@rowland.harvard.edu, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, marex@denx.de Cc: leoyang.li@nxp.com, linux-kernel@vger.kernel.org, robin.murphy@arm.com, Laurentiu Tudor Subject: [RFC PATCH v2 0/3] prerequisites for device reserved local mem rework Date: Tue, 14 May 2019 17:38:04 +0300 Message-Id: <20190514143807.7745-1-laurentiu.tudor@nxp.com> X-Mailer: git-send-email 2.17.1 X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Laurentiu Tudor For HCs that have local memory, replace the current DMA API usage with a genalloc generic allocator to manage the mappings for these devices. This is in preparation for dropping the existing "coherent" dma mem declaration APIs. Current implementation was relying on a short circuit in the DMA API that in the end, was acting as an allocator for these type of devices. Only compiled tested, so any volunteers willing to test are most welcome. Thank you! For context, see thread here: https://lkml.org/lkml/2019/4/22/357 Changes in v2: - use genalloc also in core usb (based on comment from Robin) - moved genpool decl to usb_hcd to be accesible from core usb Laurentiu Tudor (3): USB: use genalloc for USB HCs with local memory usb: host: ohci-sm501: init genalloc for local memory usb: host: ohci-tmio: init genalloc for local memory drivers/usb/core/buffer.c | 12 ++++++- drivers/usb/host/ohci-hcd.c | 23 +++++++++++--- drivers/usb/host/ohci-sm501.c | 60 +++++++++++++++++++---------------- drivers/usb/host/ohci-tmio.c | 23 +++++++++----- include/linux/usb/hcd.h | 3 ++ 5 files changed, 80 insertions(+), 41 deletions(-) -- 2.17.1