drivers/raw/ifpga_rawdev/base/ifpga_compat.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2018 Intel Corporation
   3  */
   4
   5 #ifndef _IFPGA_COMPAT_H_
   6 #define _IFPGA_COMPAT_H_
   7
   8 #include "opae_osdep.h"
   9
  10 #undef container_of
  11 #define container_of(ptr, type, member) ({ \
  12                 typeof(((type *)0)->member)(*__mptr) = (ptr); \
  13                 (type *)((char *)__mptr - offsetof(type, member)); })
  14
  15 #define IFPGA_PAGE_SHIFT       12
  16 #define IFPGA_PAGE_SIZE        (1 << IFPGA_PAGE_SHIFT)
  17 #define IFPGA_PAGE_MASK        (~(IFPGA_PAGE_SIZE - 1))
  18 #define IFPGA_PAGE_ALIGN(addr) (((addr) + IFPGA_PAGE_SIZE - 1)\
  19                 & IFPGA_PAGE_MASK)
  20 #define IFPGA_ALIGN(x, a)  (((x) + (a) - 1) & ~((a) - 1))
  21
  22 #define IS_ALIGNED(x, a)                (((x) & ((typeof(x))(a) - 1)) == 0)
  23 #define PAGE_ALIGNED(addr) IS_ALIGNED((unsigned long)(addr), IFPGA_PAGE_SIZE)
  24
  25 #define readl(addr) opae_readl(addr)
  26 #define readq(addr) opae_readq(addr)
  27 #define writel(value, addr) opae_writel(value, addr)
  28 #define writeq(value, addr) opae_writeq(value, addr)
  29
  30 #define malloc(size) opae_malloc(size)
  31 #define zmalloc(size) opae_zmalloc(size)
  32 #define free(size) opae_free(size)
  33
  34 /*
  35  * Wait register's _field to be changed to the given value (_expect's _field)
  36  * by polling with given interval and timeout.
  37  */
  38 #define fpga_wait_register_field(_field, _expect, _reg_addr, _timeout, _invl)\
  39 ({                                                                           \
  40         int wait = 0;                                                        \
  41         int ret = -ETIMEDOUT;                                                \
  42         typeof(_expect) value;                                               \
  43         for (; wait <= _timeout; wait += _invl) {                            \
  44                 value.csr = readq(_reg_addr);                                \
  45                 if (_expect._field == value._field) {                        \
  46                         ret = 0;                                             \
  47                         break;                                               \
  48                 }                                                            \
  49                 udelay(_invl);                                               \
  50         }                                                                    \
  51         ret;                                                                 \
  52 })
  53
  54 #define __maybe_unused __attribute__((__unused__))
  55
  56 #define UNUSED(x)       (void)(x)
  57
  58 #endif /* _IFPGA_COMPAT_H_ */