| Anup Patel | 928452a | 2019-02-25 08:14:17 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 2 | /* |
| 3 | * Copyright (c) 2018 Western Digital Corporation or its affiliates. |
| 4 | * |
| 5 | * Authors: |
| 6 | * Anup Patel <anup.patel@wdc.com> |
| 7 | */ |
| 8 | |
| 9 | #ifndef __ASM_RISCV_DMA_MAPPING_H |
| 10 | #define __ASM_RISCV_DMA_MAPPING_H |
| 11 | |
| Masahiro Yamada | 7167d67 | 2020-02-14 16:40:17 +0900 | [diff] [blame] | 12 | #include <linux/types.h> |
| Vignesh Raghavendra | 4a81a21 | 2020-01-16 14:23:45 +0530 | [diff] [blame] | 13 | #include <asm/cache.h> |
| 14 | #include <cpu_func.h> |
| Anup Patel | 928452a | 2019-02-25 08:14:17 +0000 | [diff] [blame] | 15 | #include <linux/dma-direction.h> |
| Vignesh Raghavendra | 4a81a21 | 2020-01-16 14:23:45 +0530 | [diff] [blame] | 16 | #include <malloc.h> |
| Anup Patel | 928452a | 2019-02-25 08:14:17 +0000 | [diff] [blame] | 17 | |
| Anup Patel | 928452a | 2019-02-25 08:14:17 +0000 | [diff] [blame] | 18 | static inline void *dma_alloc_coherent(size_t len, unsigned long *handle) |
| 19 | { |
| 20 | *handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len); |
| 21 | return (void *)*handle; |
| 22 | } |
| 23 | |
| 24 | static inline void dma_free_coherent(void *addr) |
| 25 | { |
| 26 | free(addr); |
| 27 | } |
| 28 | |
| Anup Patel | 928452a | 2019-02-25 08:14:17 +0000 | [diff] [blame] | 29 | #endif /* __ASM_RISCV_DMA_MAPPING_H */ |