summaryrefslogtreecommitdiffstats
path: root/drivers/arm/gic/v3/gic600_multichip_private.h
blob: 414bd5b8496c183a4d509bad1ad1c23fb60925ab (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
/*
 * Copyright (c) 2019-2022, ARM Limited. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#ifndef GIC600_MULTICHIP_PRIVATE_H
#define GIC600_MULTICHIP_PRIVATE_H

#include <drivers/arm/gic600_multichip.h>

#include "gicv3_private.h"

/* GIC600 GICD multichip related offsets */
#define GICD_CHIPSR			U(0xC000)
#define GICD_DCHIPR			U(0xC004)
#define GICD_CHIPR			U(0xC008)

/* GIC600 GICD multichip related masks */
#define GICD_CHIPRx_PUP_BIT		BIT_64(1)
#define GICD_CHIPRx_SOCKET_STATE	BIT_64(0)
#define GICD_DCHIPR_PUP_BIT		BIT_32(0)
#define GICD_CHIPSR_RTS_MASK		(BIT_32(4) | BIT_32(5))

/* GIC600 GICD multichip related shifts */
#define GICD_CHIPRx_ADDR_SHIFT		16
#define GICD_CHIPSR_RTS_SHIFT		4
#define GICD_DCHIPR_RT_OWNER_SHIFT	4

/* Other shifts and masks remain the same between GIC-600 and GIC-700. */
#define GIC_700_SPI_BLOCK_MIN_SHIFT	9
#define GIC_700_SPI_BLOCKS_SHIFT	3
#define GIC_600_SPI_BLOCK_MIN_SHIFT	10
#define GIC_600_SPI_BLOCKS_SHIFT	5

#define GICD_CHIPSR_RTS_STATE_DISCONNECTED	U(0)
#define GICD_CHIPSR_RTS_STATE_UPDATING		U(1)
#define GICD_CHIPSR_RTS_STATE_CONSISTENT	U(2)

/* SPI interrupt id minimum and maximum range */
#define GIC600_SPI_ID_MIN		32
#define GIC600_SPI_ID_MAX		960

#define GIC700_SPI_ID_MIN		32
#define GIC700_SPI_ID_MAX		991
#define GIC700_ESPI_ID_MIN		4096
#define GIC700_ESPI_ID_MAX		5119

/* Number of retries for PUP update */
#define GICD_PUP_UPDATE_RETRIES		10000

#define SPI_MIN_INDEX			0
#define SPI_MAX_INDEX			1

#define SPI_BLOCK_MIN_VALUE(spi_id_min) \
			(((spi_id_min) - GIC600_SPI_ID_MIN) / \
			GIC600_SPI_ID_MIN)
#define SPI_BLOCKS_VALUE(spi_id_min, spi_id_max) \
			(((spi_id_max) - (spi_id_min) + 1) / \
			GIC600_SPI_ID_MIN)
#define ESPI_BLOCK_MIN_VALUE(spi_id_min) \
			(((spi_id_min) - GIC700_ESPI_ID_MIN + 1) / \
			GIC700_SPI_ID_MIN)
#define GICD_CHIPR_VALUE_GIC_700(chip_addr, spi_block_min, spi_blocks) \
			(((chip_addr) << GICD_CHIPRx_ADDR_SHIFT) | \
			((spi_block_min) << GIC_700_SPI_BLOCK_MIN_SHIFT) | \
			((spi_blocks) << GIC_700_SPI_BLOCKS_SHIFT))
#define GICD_CHIPR_VALUE_GIC_600(chip_addr, spi_block_min, spi_blocks) \
			(((chip_addr) << GICD_CHIPRx_ADDR_SHIFT) | \
			((spi_block_min) << GIC_600_SPI_BLOCK_MIN_SHIFT) | \
			((spi_blocks) << GIC_600_SPI_BLOCKS_SHIFT))

/*
 * Multichip data assertion macros
 */
/* Set bits from 0 to ((spi_id_max + 1) / 32) */
#define SPI_BLOCKS_TILL_MAX(spi_id_max) \
			((1ULL << (((spi_id_max) + 1) >> 5)) - 1)
/* Set bits from 0 to (spi_id_min / 32) */
#define SPI_BLOCKS_TILL_MIN(spi_id_min)	((1 << ((spi_id_min) >> 5)) - 1)
/* Set bits from (spi_id_min / 32) to ((spi_id_max + 1) / 32) */
#define BLOCKS_OF_32(spi_id_min, spi_id_max) \
					SPI_BLOCKS_TILL_MAX(spi_id_max) ^ \
					SPI_BLOCKS_TILL_MIN(spi_id_min)

/*******************************************************************************
 * GIC-600 multichip operation related helper functions
 ******************************************************************************/
static inline uint32_t read_gicd_dchipr(uintptr_t base)
{
	return mmio_read_32(base + GICD_DCHIPR);
}

static inline uint64_t read_gicd_chipr_n(uintptr_t base, uint8_t n)
{
	return mmio_read_64(base + (GICD_CHIPR + (8U * n)));
}

static inline uint32_t read_gicd_chipsr(uintptr_t base)
{
	return mmio_read_32(base + GICD_CHIPSR);
}

static inline void write_gicd_dchipr(uintptr_t base, uint32_t val)
{
	mmio_write_32(base + GICD_DCHIPR, val);
}

static inline void write_gicd_chipr_n(uintptr_t base, uint8_t n, uint64_t val)
{
	mmio_write_64(base + (GICD_CHIPR + (8U * n)), val);
}

#endif /* GIC600_MULTICHIP_PRIVATE_H */