LXR dpdk/drivers/net/qede/base/ecore

   1/* SPDX-License-Identifier: BSD-3-Clause
   2 * Copyright (c) 2016 - 2018 Cavium Inc.
   3 * All rights reserved.
   4 * www.cavium.com
   5 */
   6
   7#ifndef __ECORE_UTILS_H__
   8#define __ECORE_UTILS_H__
   9
  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)
  13 */
  14#define PTR_LO(x)               ((u32)(((osal_uintptr_t)(x)) & 0xffffffff))
  15#define PTR_HI(x)               ((u32)((((osal_uintptr_t)(x)) >> 16) >> 16))
  16
  17#define DMA_LO(x)               ((u32)(((dma_addr_t)(x)) & 0xffffffff))
  18#define DMA_HI(x)               ((u32)(((dma_addr_t)(x)) >> 32))
  19
  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))
  22
  23/* It's assumed that whoever includes this has previously included an hsi
  24 * file defining the regpair.
  25 */
  26#define DMA_REGPAIR_LE(x, val)  (x).hi = DMA_HI_LE((val)); \
  27                                (x).lo = DMA_LO_LE((val))
  28
  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))
  34
  35#endif
  36