1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright (c) 2016 - 2018 Cavium Inc.
7 #ifndef __ECORE_UTILS_H__
8 #define __ECORE_UTILS_H__
10 /* dma_addr_t manip */
11 /* Suppress "right shift count >= width of type" warning when that quantity is
12 * 32-bits rquires the >> 16) >> 16)
14 #define PTR_LO(x) ((u32)(((osal_uintptr_t)(x)) & 0xffffffff))
15 #define PTR_HI(x) ((u32)((((osal_uintptr_t)(x)) >> 16) >> 16))
17 #define DMA_LO(x) ((u32)(((dma_addr_t)(x)) & 0xffffffff))
18 #define DMA_HI(x) ((u32)(((dma_addr_t)(x)) >> 32))
20 #define DMA_LO_LE(x) OSAL_CPU_TO_LE32(DMA_LO(x))
21 #define DMA_HI_LE(x) OSAL_CPU_TO_LE32(DMA_HI(x))
23 /* It's assumed that whoever includes this has previously included an hsi
24 * file defining the regpair.
26 #define DMA_REGPAIR_LE(x, val) (x).hi = DMA_HI_LE((val)); \
27 (x).lo = DMA_LO_LE((val))
29 #define HILO_GEN(hi, lo, type) ((((type)(hi)) << 32) + (lo))
30 #define HILO_DMA(hi, lo) HILO_GEN(hi, lo, dma_addr_t)
31 #define HILO_64(hi, lo) HILO_GEN(hi, lo, u64)
32 #define HILO_DMA_REGPAIR(regpair) (HILO_DMA(regpair.hi, regpair.lo))
33 #define HILO_64_REGPAIR(regpair) (HILO_64(regpair.hi, regpair.lo))