From patchwork Mon Sep 14 14:44:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 255815 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=-12.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 933C9C43461 for ; Mon, 14 Sep 2020 16:43:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 56D5F217BA for ; Mon, 14 Sep 2020 16:43:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="dP3pKRmp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726055AbgINQmf (ORCPT ); Mon, 14 Sep 2020 12:42:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44762 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726172AbgINPNb (ORCPT ); Mon, 14 Sep 2020 11:13:31 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 226CBC06174A; Mon, 14 Sep 2020 08:13:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=RqQGv7rUrofRqLyMSzfEtcHVgVUslC8cDoNR577KrIg=; b=dP3pKRmpC+I0E+dOSbraRXJ35X 3haQwB40uPuLpGR5zn67wQbMCYeYUDIDCnlsB5tNCLi9vaoDWIjbKg2ty0ncKAbUYHiAWQ1Gwe4T2 /L1d3ii2rUMCke8WZymWHb2tl/HocPOnGFPqgOwVy0kntsQ5+2r+a5DBRhRIc7Qwt5AhJHft+rUwc cUuL4BH3aNOU3nrCkiiuv/cztMGgjnYHVBqE36sUV2hPE4iUig7eK9l316jWvenjHMhEIQ2Nevj2v NzaWOE2Dnmj9Uqr/OYUKSLadMvLX2JkZjrKxFODSeBkgfvxBjLKXD/2ClVZgj/x7V7GdULKR4vyHX B3N9jL+g==; Received: from 089144214092.atnat0023.highway.a1.net ([89.144.214.92] helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kHqAB-0003UL-04; Mon, 14 Sep 2020 15:13:03 +0000 From: Christoph Hellwig To: Mauro Carvalho Chehab , Thomas Bogendoerfer , "James E.J. Bottomley" , Joonyoung Shim , Seung-Woo Kim , Ben Skeggs , Marek Szyprowski , Tomasz Figa , Matt Porter , iommu@lists.linux-foundation.org Cc: Stefan Richter , linux1394-devel@lists.sourceforge.net, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-samsung-soc@vger.kernel.org, nouveau@lists.freedesktop.org, netdev@vger.kernel.org, linux-scsi@vger.kernel.org, linux-mm@kvack.org, alsa-devel@alsa-project.org Subject: [PATCH 12/17] 53c700: convert to dma_alloc_noncoherent Date: Mon, 14 Sep 2020 16:44:28 +0200 Message-Id: <20200914144433.1622958-13-hch@lst.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200914144433.1622958-1-hch@lst.de> References: <20200914144433.1622958-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Use the new non-coherent DMA API including proper ownership transfers. Signed-off-by: Christoph Hellwig --- drivers/scsi/53c700.c | 11 +++++++++-- drivers/scsi/53c700.h | 16 ++++++++-------- 2 files changed, 17 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c index 9a343f8ecb6c3e..5117d90ccd9edf 100644 --- a/drivers/scsi/53c700.c +++ b/drivers/scsi/53c700.c @@ -269,18 +269,25 @@ NCR_700_get_SXFER(struct scsi_device *SDp) spi_period(SDp->sdev_target)); } +static inline dma_addr_t virt_to_dma(struct NCR_700_Host_Parameters *h, void *p) +{ + return h->pScript + ((uintptr_t)p - (uintptr_t)h->script); +} + static inline void dma_sync_to_dev(struct NCR_700_Host_Parameters *h, void *addr, size_t size) { if (h->noncoherent) - dma_cache_sync(h->dev, addr, size, DMA_TO_DEVICE); + dma_sync_single_for_device(h->dev, virt_to_dma(h, addr), + size, DMA_BIDIRECTIONAL); } static inline void dma_sync_from_dev(struct NCR_700_Host_Parameters *h, void *addr, size_t size) { if (h->noncoherent) - dma_cache_sync(h->dev, addr, size, DMA_FROM_DEVICE); + dma_sync_single_for_device(h->dev, virt_to_dma(h, addr), size, + DMA_BIDIRECTIONAL); } struct Scsi_Host * diff --git a/drivers/scsi/53c700.h b/drivers/scsi/53c700.h index 0f545b05fe611d..c9f8c497babb3d 100644 --- a/drivers/scsi/53c700.h +++ b/drivers/scsi/53c700.h @@ -423,33 +423,33 @@ struct NCR_700_Host_Parameters { #define NCR_710_MIN_XFERP 0 #define NCR_700_MIN_PERIOD 25 /* for SDTR message, 100ns */ -#define script_patch_32(dev, script, symbol, value) \ +#define script_patch_32(h, script, symbol, value) \ { \ int i; \ dma_addr_t da = value; \ for(i=0; i< (sizeof(A_##symbol##_used) / sizeof(__u32)); i++) { \ __u32 val = bS_to_cpu((script)[A_##symbol##_used[i]]) + da; \ (script)[A_##symbol##_used[i]] = bS_to_host(val); \ - dma_sync_to_dev((dev), &(script)[A_##symbol##_used[i]], 4); \ + dma_sync_to_dev((h), &(script)[A_##symbol##_used[i]], 4); \ DEBUG((" script, patching %s at %d to %pad\n", \ #symbol, A_##symbol##_used[i], &da)); \ } \ } -#define script_patch_32_abs(dev, script, symbol, value) \ +#define script_patch_32_abs(h, script, symbol, value) \ { \ int i; \ dma_addr_t da = value; \ for(i=0; i< (sizeof(A_##symbol##_used) / sizeof(__u32)); i++) { \ (script)[A_##symbol##_used[i]] = bS_to_host(da); \ - dma_sync_to_dev((dev), &(script)[A_##symbol##_used[i]], 4); \ + dma_sync_to_dev((h), &(script)[A_##symbol##_used[i]], 4); \ DEBUG((" script, patching %s at %d to %pad\n", \ #symbol, A_##symbol##_used[i], &da)); \ } \ } /* Used for patching the SCSI ID in the SELECT instruction */ -#define script_patch_ID(dev, script, symbol, value) \ +#define script_patch_ID(h, script, symbol, value) \ { \ int i; \ for(i=0; i< (sizeof(A_##symbol##_used) / sizeof(__u32)); i++) { \ @@ -457,13 +457,13 @@ struct NCR_700_Host_Parameters { val &= 0xff00ffff; \ val |= ((value) & 0xff) << 16; \ (script)[A_##symbol##_used[i]] = bS_to_host(val); \ - dma_sync_to_dev((dev), &(script)[A_##symbol##_used[i]], 4); \ + dma_sync_to_dev((h), &(script)[A_##symbol##_used[i]], 4); \ DEBUG((" script, patching ID field %s at %d to 0x%x\n", \ #symbol, A_##symbol##_used[i], val)); \ } \ } -#define script_patch_16(dev, script, symbol, value) \ +#define script_patch_16(h, script, symbol, value) \ { \ int i; \ for(i=0; i< (sizeof(A_##symbol##_used) / sizeof(__u32)); i++) { \ @@ -471,7 +471,7 @@ struct NCR_700_Host_Parameters { val &= 0xffff0000; \ val |= ((value) & 0xffff); \ (script)[A_##symbol##_used[i]] = bS_to_host(val); \ - dma_sync_to_dev((dev), &(script)[A_##symbol##_used[i]], 4); \ + dma_sync_to_dev((h), &(script)[A_##symbol##_used[i]], 4); \ DEBUG((" script, patching short field %s at %d to 0x%x\n", \ #symbol, A_##symbol##_used[i], val)); \ } \