mmu_general.h

 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_ */