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=-2.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 C461FC04A6B for ; Fri, 10 May 2019 14:56:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9D6632175B for ; Fri, 10 May 2019 14:56:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727524AbfEJO4w (ORCPT ); Fri, 10 May 2019 10:56:52 -0400 Received: from inva021.nxp.com ([92.121.34.21]:49870 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727258AbfEJO4w (ORCPT ); Fri, 10 May 2019 10:56:52 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 6D4ED200202; Fri, 10 May 2019 16:56:50 +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 609292001B1; Fri, 10 May 2019 16:56:50 +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 DD78C205ED; Fri, 10 May 2019 16:56:49 +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 0/3] prerequisites for device reserved local mem rework Date: Fri, 10 May 2019 17:56:43 +0300 Message-Id: <20190510145646.10078-1-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 Laurentiu Tudor (3): ohci-hcd: 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/host/ohci-hcd.c | 21 +++++++++--- drivers/usb/host/ohci-sm501.c | 63 +++++++++++++++++++---------------- drivers/usb/host/ohci-tmio.c | 23 ++++++++----- drivers/usb/host/ohci.h | 3 ++ 4 files changed, 69 insertions(+), 41 deletions(-) -- 2.17.1