diff options
Diffstat (limited to 'arch/xtensa/kernel/pci-dma.c')
| -rw-r--r-- | arch/xtensa/kernel/pci-dma.c | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c index 9171bff76fc4..65f05776d827 100644 --- a/arch/xtensa/kernel/pci-dma.c +++ b/arch/xtensa/kernel/pci-dma.c @@ -1,11 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * DMA coherent memory allocation. * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * * Copyright (C) 2002 - 2005 Tensilica Inc. * Copyright (C) 2015 Cadence Design Systems Inc. * @@ -167,10 +163,6 @@ void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, *handle = phys_to_dma(dev, page_to_phys(page)); - if (attrs & DMA_ATTR_NO_KERNEL_MAPPING) { - return page; - } - #ifdef CONFIG_MMU if (PageHighMem(page)) { void *p; @@ -196,9 +188,7 @@ void arch_dma_free(struct device *dev, size_t size, void *vaddr, unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT; struct page *page; - if (attrs & DMA_ATTR_NO_KERNEL_MAPPING) { - page = vaddr; - } else if (platform_vaddr_uncached(vaddr)) { + if (platform_vaddr_uncached(vaddr)) { page = virt_to_page(platform_vaddr_to_cached(vaddr)); } else { #ifdef CONFIG_MMU |