drivers/misc/habanalabs/include/qman_if.h

   1 /* SPDX-License-Identifier: GPL-2.0
   2  *
   3  * Copyright 2016-2018 HabanaLabs, Ltd.
   4  * All Rights Reserved.
   5  *
   6  */
   7
   8 #ifndef QMAN_IF_H
   9 #define QMAN_IF_H
  10
  11 #include <linux/types.h>
  12
  13 /*
  14  * PRIMARY QUEUE
  15  */
  16
  17 struct hl_bd {
  18         __le64  ptr;
  19         __le32  len;
  20         __le32  ctl;
  21 };
  22
  23 #define HL_BD_SIZE                      sizeof(struct hl_bd)
  24
  25 /*
  26  * S/W CTL FIELDS.
  27  *
  28  * BD_CTL_REPEAT_VALID tells the CP whether the repeat field in the BD CTL is
  29  * valid. 1 means the repeat field is valid, 0 means not-valid,
  30  * i.e. repeat == 1
  31  */
  32 #define BD_CTL_REPEAT_VALID_SHIFT       24
  33 #define BD_CTL_REPEAT_VALID_MASK        0x01000000
  34
  35 #define BD_CTL_SHADOW_INDEX_SHIFT       0
  36 #define BD_CTL_SHADOW_INDEX_MASK        0x00000FFF
  37
  38 /*
  39  * H/W CTL FIELDS
  40  */
  41
  42 #define BD_CTL_COMP_OFFSET_SHIFT        16
  43 #define BD_CTL_COMP_OFFSET_MASK         0x00FF0000
  44
  45 #define BD_CTL_COMP_DATA_SHIFT          0
  46 #define BD_CTL_COMP_DATA_MASK           0x0000FFFF
  47
  48 /*
  49  * COMPLETION QUEUE
  50  */
  51
  52 struct hl_cq_entry {
  53         __le32  data;
  54 };
  55
  56 #define HL_CQ_ENTRY_SIZE                sizeof(struct hl_cq_entry)
  57
  58 #define CQ_ENTRY_READY_SHIFT                    31
  59 #define CQ_ENTRY_READY_MASK                     0x80000000
  60
  61 #define CQ_ENTRY_SHADOW_INDEX_VALID_SHIFT       30
  62 #define CQ_ENTRY_SHADOW_INDEX_VALID_MASK        0x40000000
  63
  64 #define CQ_ENTRY_SHADOW_INDEX_SHIFT             BD_CTL_SHADOW_INDEX_SHIFT
  65 #define CQ_ENTRY_SHADOW_INDEX_MASK              BD_CTL_SHADOW_INDEX_MASK
  66
  67
  68 #endif /* QMAN_IF_H */