1*1f0f7e1cSFrançois Tigeot /* 2*1f0f7e1cSFrançois Tigeot * Copyright (c) 2020 François Tigeot <ftigeot@wolfpond.org> 3*1f0f7e1cSFrançois Tigeot * All rights reserved. 4*1f0f7e1cSFrançois Tigeot * 5*1f0f7e1cSFrançois Tigeot * Redistribution and use in source and binary forms, with or without 6*1f0f7e1cSFrançois Tigeot * modification, are permitted provided that the following conditions 7*1f0f7e1cSFrançois Tigeot * are met: 8*1f0f7e1cSFrançois Tigeot * 1. Redistributions of source code must retain the above copyright 9*1f0f7e1cSFrançois Tigeot * notice unmodified, this list of conditions, and the following 10*1f0f7e1cSFrançois Tigeot * disclaimer. 11*1f0f7e1cSFrançois Tigeot * 2. Redistributions in binary form must reproduce the above copyright 12*1f0f7e1cSFrançois Tigeot * notice, this list of conditions and the following disclaimer in the 13*1f0f7e1cSFrançois Tigeot * documentation and/or other materials provided with the distribution. 14*1f0f7e1cSFrançois Tigeot * 15*1f0f7e1cSFrançois Tigeot * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16*1f0f7e1cSFrançois Tigeot * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17*1f0f7e1cSFrançois Tigeot * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18*1f0f7e1cSFrançois Tigeot * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19*1f0f7e1cSFrançois Tigeot * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20*1f0f7e1cSFrançois Tigeot * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21*1f0f7e1cSFrançois Tigeot * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22*1f0f7e1cSFrançois Tigeot * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23*1f0f7e1cSFrançois Tigeot * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24*1f0f7e1cSFrançois Tigeot * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25*1f0f7e1cSFrançois Tigeot */ 26*1f0f7e1cSFrançois Tigeot 27*1f0f7e1cSFrançois Tigeot #ifndef _LINUX_PCI_DMA_COMPAT_H 28*1f0f7e1cSFrançois Tigeot #define _LINUX_PCI_DMA_COMPAT_H 29*1f0f7e1cSFrançois Tigeot 30*1f0f7e1cSFrançois Tigeot #include <linux/dma-mapping.h> 31*1f0f7e1cSFrançois Tigeot 32*1f0f7e1cSFrançois Tigeot static inline void * 33*1f0f7e1cSFrançois Tigeot pci_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_handle) 34*1f0f7e1cSFrançois Tigeot { 35*1f0f7e1cSFrançois Tigeot /* Our dma_alloc_coherent() implementation does not support a NULL pdev */ 36*1f0f7e1cSFrançois Tigeot BUG_ON(pdev == NULL); 37*1f0f7e1cSFrançois Tigeot 38*1f0f7e1cSFrançois Tigeot return dma_alloc_coherent(&pdev->dev, size, dma_handle, GFP_ATOMIC); 39*1f0f7e1cSFrançois Tigeot } 40*1f0f7e1cSFrançois Tigeot 41*1f0f7e1cSFrançois Tigeot #endif /* _LINUX_PCI_DMA_COMPAT_H */ 42