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 
49 enum 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