root/drivers/misc/habanalabs/include/hw_ip/mmu/mmu_general.h

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INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0
   2  *
   3  * Copyright 2016-2018 HabanaLabs, Ltd.
   4  * All Rights Reserved.
   5  *
   6  */
   7 
   8 #ifndef INCLUDE_MMU_GENERAL_H_
   9 #define INCLUDE_MMU_GENERAL_H_
  10 
  11 #define PAGE_SHIFT_4KB                  12
  12 #define PAGE_SHIFT_2MB                  21
  13 #define PAGE_SIZE_2MB                   (_AC(1, UL) << PAGE_SHIFT_2MB)
  14 #define PAGE_SIZE_4KB                   (_AC(1, UL) << PAGE_SHIFT_4KB)
  15 #define PAGE_MASK_2MB                   (~(PAGE_SIZE_2MB - 1))
  16 
  17 #define PAGE_PRESENT_MASK               0x0000000000001ull
  18 #define SWAP_OUT_MASK                   0x0000000000004ull
  19 #define LAST_MASK                       0x0000000000800ull
  20 #define PHYS_ADDR_MASK                  0xFFFFFFFFFFFFF000ull
  21 #define HOP0_MASK                       0x3000000000000ull
  22 #define HOP1_MASK                       0x0FF8000000000ull
  23 #define HOP2_MASK                       0x0007FC0000000ull
  24 #define HOP3_MASK                       0x000003FE00000ull
  25 #define HOP4_MASK                       0x00000001FF000ull
  26 #define OFFSET_MASK                     0x0000000000FFFull
  27 
  28 #define HOP0_SHIFT                      48
  29 #define HOP1_SHIFT                      39
  30 #define HOP2_SHIFT                      30
  31 #define HOP3_SHIFT                      21
  32 #define HOP4_SHIFT                      12
  33 
  34 #define PTE_PHYS_ADDR_SHIFT             12
  35 #define PTE_PHYS_ADDR_MASK              ~OFFSET_MASK
  36 
  37 #define HL_PTE_SIZE                     sizeof(u64)
  38 #define HOP_TABLE_SIZE                  PAGE_SIZE_4KB
  39 #define PTE_ENTRIES_IN_HOP              (HOP_TABLE_SIZE / HL_PTE_SIZE)
  40 #define HOP0_TABLES_TOTAL_SIZE          (HOP_TABLE_SIZE * MAX_ASID)
  41 
  42 #define MMU_HOP0_PA43_12_SHIFT          12
  43 #define MMU_HOP0_PA49_44_SHIFT          (12 + 32)
  44 
  45 #define MMU_CONFIG_TIMEOUT_USEC         2000 /* 2 ms */
  46 
  47 #endif /* INCLUDE_MMU_GENERAL_H_ */
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