xref: /rk3399_ARM-atf/drivers/arm/gic/v3/gic600_multichip_private.h (revision ebd6efae67c6a086bc97d807a638bde324d936dc)
1 /*
2  * Copyright (c) 2019, ARM Limited. All rights reserved.
3  *
4  * SPDX-License-Identifier: BSD-3-Clause
5  */
6 
7 #ifndef GIC600_MULTICHIP_PRIVATE_H
8 #define GIC600_MULTICHIP_PRIVATE_H
9 
10 #include <drivers/arm/gic600_multichip.h>
11 
12 #include "gicv3_private.h"
13 
14 /* GIC600 GICD multichip related offsets */
15 #define GICD_CHIPSR			U(0xC000)
16 #define GICD_DCHIPR			U(0xC004)
17 #define GICD_CHIPR			U(0xC008)
18 
19 /* GIC600 GICD multichip related masks */
20 #define GICD_CHIPRx_PUP_BIT		BIT_64(1)
21 #define GICD_CHIPRx_SOCKET_STATE	BIT_64(0)
22 #define GICD_DCHIPR_PUP_BIT		BIT_32(0)
23 #define GICD_CHIPSR_RTS_MASK		(BIT_32(4) | BIT_32(5))
24 
25 /* GIC600 GICD multichip related shifts */
26 #define GICD_CHIPRx_ADDR_SHIFT		16
27 #define GICD_CHIPRx_SPI_BLOCK_MIN_SHIFT	10
28 #define GICD_CHIPRx_SPI_BLOCKS_SHIFT	5
29 #define GICD_CHIPSR_RTS_SHIFT		4
30 #define GICD_DCHIPR_RT_OWNER_SHIFT	4
31 
32 #define GICD_CHIPSR_RTS_STATE_DISCONNECTED	U(0)
33 #define GICD_CHIPSR_RTS_STATE_UPDATING		U(1)
34 #define GICD_CHIPSR_RTS_STATE_CONSISTENT	U(2)
35 
36 /* SPI interrupt id minimum and maximum range */
37 #define GIC600_SPI_ID_MIN		32
38 #define GIC600_SPI_ID_MAX		960
39 
40 /* Number of retries for PUP update */
41 #define GICD_PUP_UPDATE_RETRIES		10000
42 
43 #define SPI_MIN_INDEX			0
44 #define SPI_MAX_INDEX			1
45 
46 #define SPI_BLOCK_MIN_VALUE(spi_id_min) \
47 			(((spi_id_min) - GIC600_SPI_ID_MIN) / \
48 			GIC600_SPI_ID_MIN)
49 #define SPI_BLOCKS_VALUE(spi_id_min, spi_id_max) \
50 			(((spi_id_max) - (spi_id_min) + 1) / \
51 			GIC600_SPI_ID_MIN)
52 #define GICD_CHIPR_VALUE(chip_addr, spi_block_min, spi_blocks) \
53 			(((chip_addr) << GICD_CHIPRx_ADDR_SHIFT) | \
54 			((spi_block_min) << GICD_CHIPRx_SPI_BLOCK_MIN_SHIFT) | \
55 			((spi_blocks) << GICD_CHIPRx_SPI_BLOCKS_SHIFT))
56 
57 /*
58  * Multichip data assertion macros
59  */
60 /* Set bits from 0 to ((spi_id_max + 1) / 32) */
61 #define SPI_BLOCKS_TILL_MAX(spi_id_max)	((1 << (((spi_id_max) + 1) >> 5)) - 1)
62 /* Set bits from 0 to (spi_id_min / 32) */
63 #define SPI_BLOCKS_TILL_MIN(spi_id_min)	((1 << ((spi_id_min) >> 5)) - 1)
64 /* Set bits from (spi_id_min / 32) to ((spi_id_max + 1) / 32) */
65 #define BLOCKS_OF_32(spi_id_min, spi_id_max) \
66 					SPI_BLOCKS_TILL_MAX(spi_id_max) ^ \
67 					SPI_BLOCKS_TILL_MIN(spi_id_min)
68 
69 /*******************************************************************************
70  * GIC-600 multichip operation related helper functions
71  ******************************************************************************/
72 static inline uint32_t read_gicd_dchipr(uintptr_t base)
73 {
74 	return mmio_read_32(base + GICD_DCHIPR);
75 }
76 
77 static inline uint64_t read_gicd_chipr_n(uintptr_t base, uint8_t n)
78 {
79 	return mmio_read_64(base + (GICD_CHIPR + (8U * n)));
80 }
81 
82 static inline uint32_t read_gicd_chipsr(uintptr_t base)
83 {
84 	return mmio_read_32(base + GICD_CHIPSR);
85 }
86 
87 static inline void write_gicd_dchipr(uintptr_t base, uint32_t val)
88 {
89 	mmio_write_32(base + GICD_DCHIPR, val);
90 }
91 
92 static inline void write_gicd_chipr_n(uintptr_t base, uint8_t n, uint64_t val)
93 {
94 	mmio_write_64(base + (GICD_CHIPR + (8U * n)), val);
95 }
96 
97 #endif /* GIC600_MULTICHIP_PRIVATE_H */
98