From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932466AbcGOJFN (ORCPT ); Fri, 15 Jul 2016 05:05:13 -0400 Received: from mail-pf0-f181.google.com ([209.85.192.181]:34077 "EHLO mail-pf0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932453AbcGOJFI (ORCPT ); Fri, 15 Jul 2016 05:05:08 -0400 From: Anup Patel To: "Hans J. Koch" , Greg Kroah-Hartman , Jonathan Corbet Cc: Ankit Jindal , Jan Viktorin , Rob Herring , Ray Jui , Scott Branden , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, Anup Patel Subject: [PATCH 8/8] uio: Use new memtypes in uio_dmem_genirq Date: Fri, 15 Jul 2016 14:34:03 +0530 Message-Id: <1468573443-4670-9-git-send-email-anup.patel@broadcom.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1468573443-4670-1-git-send-email-anup.patel@broadcom.com> References: <1468573443-4670-1-git-send-email-anup.patel@broadcom.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch extends uio_dmem_genirq driver to use recently added memtypes as follows: 1. Use UIO_MEM_DEVICE memtype for MEM resources 2. Use UIO_MEM_PHYS_CACHE memtype for dynamic regions when UIO DT node is marked as DMA coherent. Signed-off-by: Anup Patel --- drivers/uio/uio_dmem_genirq.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/uio/uio_dmem_genirq.c b/drivers/uio/uio_dmem_genirq.c index 0a0cc19..4bd6f31 100644 --- a/drivers/uio/uio_dmem_genirq.c +++ b/drivers/uio/uio_dmem_genirq.c @@ -279,7 +279,7 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev) break; } - uiomem->memtype = UIO_MEM_PHYS; + uiomem->memtype = UIO_MEM_DEVICE; uiomem->addr = r->start; uiomem->size = resource_size(r); ++uiomem; @@ -295,7 +295,12 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev) " dynamic and fixed memory regions.\n"); break; } - uiomem->memtype = UIO_MEM_PHYS; + + if (pdev->dev.of_node && + of_dma_is_coherent(pdev->dev.of_node)) + uiomem->memtype = UIO_MEM_PHYS_CACHE; + else + uiomem->memtype = UIO_MEM_PHYS; uiomem->addr = DMEM_MAP_ERROR; uiomem->size = pdata->dynamic_region_sizes[i]; ++uiomem; -- 1.9.1