1 | // SPDX-License-Identifier: GPL-2.0-only |
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2 | /* |
3 | * Microblaze support for cache consistent memory. |
4 | * Copyright (C) 2010 Michal Simek <monstr@monstr.eu> |
5 | * Copyright (C) 2010 PetaLogix |
6 | * Copyright (C) 2005 John Williams <jwilliams@itee.uq.edu.au> |
7 | */ |
8 | |
9 | #include <linux/kernel.h> |
10 | #include <linux/string.h> |
11 | #include <linux/types.h> |
12 | #include <linux/mm.h> |
13 | #include <linux/init.h> |
14 | #include <linux/dma-map-ops.h> |
15 | #include <asm/cpuinfo.h> |
16 | #include <asm/cacheflush.h> |
17 | |
18 | void arch_dma_prep_coherent(struct page *page, size_t size) |
19 | { |
20 | phys_addr_t paddr = page_to_phys(page); |
21 | |
22 | flush_dcache_range(paddr, paddr + size); |
23 | } |
24 |