1/* SPDX-License-Identifier: GPL-2.0
2 *
3 * Copyright 2016-2020 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_64KB 16
13#define PAGE_SHIFT_2MB 21
14#define PAGE_SHIFT_16MB 24
15#define PAGE_SHIFT_64MB 26
16#define PAGE_SHIFT_1GB 30
17#define PAGE_SIZE_4KB _BITUL(PAGE_SHIFT_4KB)
18#define PAGE_SIZE_64KB _BITUL(PAGE_SHIFT_64KB)
19#define PAGE_SIZE_2MB _BITUL(PAGE_SHIFT_2MB)
20#define PAGE_SIZE_16MB _BITUL(PAGE_SHIFT_16MB)
21#define PAGE_SIZE_64MB _BITUL(PAGE_SHIFT_64MB)
22#define PAGE_SIZE_1GB _BITUL(PAGE_SHIFT_1GB)
23
24#define PAGE_PRESENT_MASK 0x0000000000001ull
25#define SWAP_OUT_MASK 0x0000000000004ull
26#define LAST_MASK 0x0000000000800ull
27#define FLAGS_MASK 0x0000000000FFFull
28
29#define MMU_ARCH_3_HOPS 3
30#define MMU_ARCH_4_HOPS 4
31#define MMU_ARCH_5_HOPS 5
32#define MMU_ARCH_6_HOPS 6
33
34#define HOP_PHYS_ADDR_MASK (~FLAGS_MASK)
35
36#define HL_PTE_SIZE sizeof(u64)
37
38/* definitions for HOP with 512 PTE entries */
39#define HOP_PTE_ENTRIES_512 512
40#define HOP_TABLE_SIZE_512_PTE (HOP_PTE_ENTRIES_512 * HL_PTE_SIZE)
41#define HOP0_512_PTE_TABLES_TOTAL_SIZE (HOP_TABLE_SIZE_512_PTE * MAX_ASID)
42
43#define MMU_HOP0_PA43_12_SHIFT 12
44#define MMU_HOP0_PA49_44_SHIFT (12 + 32)
45#define MMU_HOP0_PA63_44_SHIFT (12 + 32)
46
47#define MMU_CONFIG_TIMEOUT_USEC 2000 /* 2 ms */
48
49enum mmu_hop_num {
50 MMU_HOP0,
51 MMU_HOP1,
52 MMU_HOP2,
53 MMU_HOP3,
54 MMU_HOP4,
55 MMU_HOP5,
56 MMU_HOP_MAX,
57};
58
59#endif /* INCLUDE_MMU_GENERAL_H_ */
60

source code of linux/drivers/accel/habanalabs/include/hw_ip/mmu/mmu_general.h