From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Eli Billauer To: tj@kernel.org Cc: devel@driverdev.osuosl.org, gregkh@linuxfoundation.org, bhelgaas@google.com, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, Eli Billauer Subject: [PATCH 3/3] dma-mapping: pci: Add devm_ interface for pci_map_single Date: Sat, 17 May 2014 15:22:25 +0300 Message-Id: <1400329345-15556-3-git-send-email-eli.billauer@gmail.com> In-Reply-To: <1400329345-15556-1-git-send-email-eli.billauer@gmail.com> References: <1400329345-15556-1-git-send-email-eli.billauer@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: Signed-off-by: Eli Billauer --- Documentation/driver-model/devres.txt | 2 ++ include/asm-generic/pci-dma-compat.h | 17 +++++++++++++++++ 2 files changed, 19 insertions(+), 0 deletions(-) diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt index 2112a00..fea2c69 100644 --- a/Documentation/driver-model/devres.txt +++ b/Documentation/driver-model/devres.txt @@ -274,6 +274,8 @@ DMA PCI pcim_enable_device() : after success, all PCI ops become managed pcim_pin_device() : keep PCI device enabled after release + pcim_map_single() + pcim_unmap_single() IOMAP devm_ioport_map() diff --git a/include/asm-generic/pci-dma-compat.h b/include/asm-generic/pci-dma-compat.h index 1437b7d..444e598 100644 --- a/include/asm-generic/pci-dma-compat.h +++ b/include/asm-generic/pci-dma-compat.h @@ -113,4 +113,21 @@ static inline int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask) } #endif +/* + * Managed DMA API + */ + +static inline dma_addr_t +pcim_map_single(struct pci_dev *hwdev, void *ptr, size_t size, int direction) +{ + return dmam_map_single(hwdev == NULL ? NULL : &hwdev->dev, ptr, size, (enum dma_data_direction)direction); +} + +static inline void +pcim_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr, + size_t size, int direction) +{ + dmam_unmap_single(hwdev == NULL ? NULL : &hwdev->dev, dma_addr, size, (enum dma_data_direction)direction); +} + #endif -- 1.7.2.3