drivers/common/octeontx2/otx2_io_generic.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2019 Marvell International Ltd.
   3  */
   4
   5 #ifndef _OTX2_IO_GENERIC_H_
   6 #define _OTX2_IO_GENERIC_H_
   7
   8 #include <string.h>
   9
  10 #define otx2_load_pair(val0, val1, addr)                        \
  11 do {                                                            \
  12         val0 = rte_read64_relaxed((void *)(addr));              \
  13         val1 = rte_read64_relaxed((uint8_t *)(addr) + 8);       \
  14 } while (0)
  15
  16 #define otx2_store_pair(val0, val1, addr)                       \
  17 do {                                                            \
  18         rte_write64_relaxed(val0, (void *)(addr));              \
  19         rte_write64_relaxed(val1, (((uint8_t *)(addr)) + 8));   \
  20 } while (0)
  21
  22 #define otx2_prefetch_store_keep(ptr) do {} while (0)
  23
  24 static inline uint64_t
  25 otx2_atomic64_add_nosync(int64_t incr, int64_t *ptr)
  26 {
  27         RTE_SET_USED(ptr);
  28         RTE_SET_USED(incr);
  29
  30         return 0;
  31 }
  32
  33 static inline uint64_t
  34 otx2_atomic64_add_sync(int64_t incr, int64_t *ptr)
  35 {
  36         RTE_SET_USED(ptr);
  37         RTE_SET_USED(incr);
  38
  39         return 0;
  40 }
  41
  42 static inline int64_t
  43 otx2_lmt_submit(uint64_t io_address)
  44 {
  45         RTE_SET_USED(io_address);
  46
  47         return 0;
  48 }
  49
  50 static inline int64_t
  51 otx2_lmt_submit_release(uint64_t io_address)
  52 {
  53         RTE_SET_USED(io_address);
  54
  55         return 0;
  56 }
  57
  58 static __rte_always_inline void
  59 otx2_lmt_mov(void *out, const void *in, const uint32_t lmtext)
  60 {
  61         /* Copy four words if lmtext = 0
  62          *      six words if lmtext = 1
  63          *      eight words if lmtext =2
  64          */
  65         memcpy(out, in, (4 + (2 * lmtext)) * sizeof(uint64_t));
  66 }
  67
  68 static __rte_always_inline void
  69 otx2_lmt_mov_seg(void *out, const void *in, const uint16_t segdw)
  70 {
  71         RTE_SET_USED(out);
  72         RTE_SET_USED(in);
  73         RTE_SET_USED(segdw);
  74 }
  75 #endif /* _OTX2_IO_GENERIC_H_ */