From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: [PATCH 23/34] dma-mapping: provide a generic asm/dma-mapping.h Date: Fri, 12 Jan 2018 09:42:21 +0100 Message-ID: <20180112084232.2857-24-hch@lst.de> References: <20180112084232.2857-1-hch@lst.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=fIXo7ye4ABGbI8Z4l4PS8W/qsplgIha60NnhRjQOjp8=; b=cTH3pbvlpH6oXJ/SU3/2y3F6a cN+IDIjPs0x8/czOFFY2CzKcQkM5krqXgDagZPeLcqMOAoRJyd80OiHEKNRe/aINkG38Leh210H3P nZiqdmShVGKG7UR/U9pazeS3ywEVB2mymrphcagAuh69l7MSZ+TB8ku7P1wQct5z72BNuleKY6ZwV G0r7c8cNMr/6nmCTiIfoygCDaZPJE/UVofopdqBv1fn1fwsodGwMdpUU+1guEmMLgW17qQ3wFFgbW d51DJYSxz2j+GzeQlLZU3kvw00dEoP6leMmj8Xa6/31d3gVU/Mt7td5/AkvIuPkyyxccuUvhDjSQH 99Z7EhplA==; In-Reply-To: <20180112084232.2857-1-hch-jcswGhMUV9g@public.gmane.org> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Cc: linux-mips-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org, linux-ia64-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-sh-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, sparclinux-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Guan Xuetao , linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-s390-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-c6x-dev-jPsnJVOj+W6hPH1hqNUYSQ@public.gmane.org, linux-hexagon-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, Konrad Rzeszutek Wilk , linux-snps-arc-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-m68k-cunTk1MwBs8S/qaLPR03pWD2FQJk+8+b@public.gmane.org, patches-q3qR2WxjNRFS9aJRtSZj7A@public.gmane.org, linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Michal Simek , linux-parisc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-cris-kernel-VrBV9hrLPhE@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-alpha-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org For architectures that just use the generic dma_noop_ops we can provide a generic version of dma-mapping.h. Signed-off-by: Christoph Hellwig --- MAINTAINERS | 1 + arch/m32r/include/asm/Kbuild | 1 + arch/m32r/include/asm/dma-mapping.h | 17 ----------------- arch/riscv/include/asm/Kbuild | 1 + arch/riscv/include/asm/dma-mapping.h | 30 ------------------------------ arch/s390/include/asm/Kbuild | 1 + arch/s390/include/asm/dma-mapping.h | 17 ----------------- include/asm-generic/dma-mapping.h | 10 ++++++++++ 8 files changed, 14 insertions(+), 64 deletions(-) delete mode 100644 arch/m32r/include/asm/dma-mapping.h delete mode 100644 arch/riscv/include/asm/dma-mapping.h delete mode 100644 arch/s390/include/asm/dma-mapping.h create mode 100644 include/asm-generic/dma-mapping.h diff --git a/MAINTAINERS b/MAINTAINERS index d2cfdcce1db5..234e642e7149 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4338,6 +4338,7 @@ F: lib/dma-noop.c F: lib/dma-virt.c F: drivers/base/dma-mapping.c F: drivers/base/dma-coherent.c +F: include/asm-generic/dma-mapping.h F: include/linux/dma-direct.h F: include/linux/dma-mapping.h diff --git a/arch/m32r/include/asm/Kbuild b/arch/m32r/include/asm/Kbuild index 7e11b125c35e..ca83fda8177b 100644 --- a/arch/m32r/include/asm/Kbuild +++ b/arch/m32r/include/asm/Kbuild @@ -1,5 +1,6 @@ generic-y += clkdev.h generic-y += current.h +generic-y += dma-mapping.h generic-y += exec.h generic-y += extable.h generic-y += irq_work.h diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h deleted file mode 100644 index 8967fb659691..000000000000 --- a/arch/m32r/include/asm/dma-mapping.h +++ /dev/null @@ -1,17 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_M32R_DMA_MAPPING_H -#define _ASM_M32R_DMA_MAPPING_H - -#include -#include -#include -#include -#include -#include - -static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) -{ - return &dma_noop_ops; -} - -#endif /* _ASM_M32R_DMA_MAPPING_H */ diff --git a/arch/riscv/include/asm/Kbuild b/arch/riscv/include/asm/Kbuild index 970460a0b492..197460ccbf21 100644 --- a/arch/riscv/include/asm/Kbuild +++ b/arch/riscv/include/asm/Kbuild @@ -7,6 +7,7 @@ generic-y += device.h generic-y += div64.h generic-y += dma.h generic-y += dma-contiguous.h +generic-y += dma-mapping.h generic-y += emergency-restart.h generic-y += errno.h generic-y += exec.h diff --git a/arch/riscv/include/asm/dma-mapping.h b/arch/riscv/include/asm/dma-mapping.h deleted file mode 100644 index 73849e2cc761..000000000000 --- a/arch/riscv/include/asm/dma-mapping.h +++ /dev/null @@ -1,30 +0,0 @@ -/* - * Copyright (C) 2003-2004 Hewlett-Packard Co - * David Mosberger-Tang - * Copyright (C) 2012 ARM Ltd. - * Copyright (C) 2016 SiFive, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ -#ifndef __ASM_RISCV_DMA_MAPPING_H -#define __ASM_RISCV_DMA_MAPPING_H - -/* Use ops->dma_mapping_error (if it exists) or assume success */ -// #undef DMA_ERROR_CODE - -static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) -{ - return &dma_noop_ops; -} - -#endif /* __ASM_RISCV_DMA_MAPPING_H */ diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild index 048450869328..dade72be127b 100644 --- a/arch/s390/include/asm/Kbuild +++ b/arch/s390/include/asm/Kbuild @@ -4,6 +4,7 @@ generic-y += cacheflush.h generic-y += clkdev.h generic-y += device.h generic-y += dma-contiguous.h +generic-y += dma-mapping.h generic-y += div64.h generic-y += emergency-restart.h generic-y += export.h diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h deleted file mode 100644 index bdc2455483f6..000000000000 --- a/arch/s390/include/asm/dma-mapping.h +++ /dev/null @@ -1,17 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_S390_DMA_MAPPING_H -#define _ASM_S390_DMA_MAPPING_H - -#include -#include -#include -#include -#include -#include - -static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) -{ - return &dma_noop_ops; -} - -#endif /* _ASM_S390_DMA_MAPPING_H */ diff --git a/include/asm-generic/dma-mapping.h b/include/asm-generic/dma-mapping.h new file mode 100644 index 000000000000..164031531d85 --- /dev/null +++ b/include/asm-generic/dma-mapping.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_GENERIC_DMA_MAPPING_H +#define _ASM_GENERIC_DMA_MAPPING_H + +static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) +{ + return &dma_noop_ops; +} + +#endif /* _ASM_GENERIC_DMA_MAPPING_H */ -- 2.14.2