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1#ifndef __ALPHA_POLARIS__H__
2#define __ALPHA_POLARIS__H__
3
4#include <linux/types.h>
5#include <asm/compiler.h>
6
7/*
8 * POLARIS is the internal name for a core logic chipset which provides
9 * memory controller and PCI access for the 21164PC chip based systems.
10 *
11 * This file is based on:
12 *
13 * Polaris System Controller
14 * Device Functional Specification
15 * 22-Jan-98
16 * Rev. 4.2
17 *
18 */
19
20/* Polaris memory regions */
21#define POLARIS_SPARSE_MEM_BASE (IDENT_ADDR + 0xf800000000UL)
22#define POLARIS_DENSE_MEM_BASE (IDENT_ADDR + 0xf900000000UL)
23#define POLARIS_SPARSE_IO_BASE (IDENT_ADDR + 0xf980000000UL)
24#define POLARIS_SPARSE_CONFIG_BASE (IDENT_ADDR + 0xf9c0000000UL)
25#define POLARIS_IACK_BASE (IDENT_ADDR + 0xf9f8000000UL)
26#define POLARIS_DENSE_IO_BASE (IDENT_ADDR + 0xf9fc000000UL)
27#define POLARIS_DENSE_CONFIG_BASE (IDENT_ADDR + 0xf9fe000000UL)
28
29#define POLARIS_IACK_SC POLARIS_IACK_BASE
30
31/* The Polaris command/status registers live in PCI Config space for
32 * bus 0/device 0. As such, they may be bytes, words, or doublewords.
33 */
34#define POLARIS_W_VENID (POLARIS_DENSE_CONFIG_BASE)
35#define POLARIS_W_DEVID (POLARIS_DENSE_CONFIG_BASE+2)
36#define POLARIS_W_CMD (POLARIS_DENSE_CONFIG_BASE+4)
37#define POLARIS_W_STATUS (POLARIS_DENSE_CONFIG_BASE+6)
38
39/*
40 * Data structure for handling POLARIS machine checks:
41 */
42struct el_POLARIS_sysdata_mcheck {
43 u_long psc_status;
44 u_long psc_pcictl0;
45 u_long psc_pcictl1;
46 u_long psc_pcictl2;
47};
48
49#ifdef __KERNEL__
50
51#ifndef __EXTERN_INLINE
52#define __EXTERN_INLINE extern inline
53#define __IO_EXTERN_INLINE
54#endif
55
56/*
57 * I/O functions:
58 *
59 * POLARIS, the PCI/memory support chipset for the PCA56 (21164PC)
60 * processors, can use either a sparse address mapping scheme, or the
61 * so-called byte-word PCI address space, to get at PCI memory and I/O.
62 *
63 * However, we will support only the BWX form.
64 */
65
66/*
67 * Memory functions. Polaris allows all accesses (byte/word
68 * as well as long/quad) to be done through dense space.
69 *
70 * We will only support DENSE access via BWX insns.
71 */
72
73__EXTERN_INLINE void __iomem *polaris_ioportmap(unsigned long addr)
74{
75 return (void __iomem *)(addr + POLARIS_DENSE_IO_BASE);
76}
77
78__EXTERN_INLINE void __iomem *polaris_ioremap(unsigned long addr,
79 unsigned long size)
80{
81 return (void __iomem *)(addr + POLARIS_DENSE_MEM_BASE);
82}
83
84__EXTERN_INLINE int polaris_is_ioaddr(unsigned long addr)
85{
86 return addr >= POLARIS_SPARSE_MEM_BASE;
87}
88
89__EXTERN_INLINE int polaris_is_mmio(const volatile void __iomem *addr)
90{
91 return (unsigned long)addr < POLARIS_SPARSE_IO_BASE;
92}
93
94#undef __IO_PREFIX
95#define __IO_PREFIX polaris
96#define polaris_trivial_rw_bw 1
97#define polaris_trivial_rw_lq 1
98#define polaris_trivial_io_bw 1
99#define polaris_trivial_io_lq 1
100#define polaris_trivial_iounmap 1
101#include <asm/io_trivial.h>
102
103#ifdef __IO_EXTERN_INLINE
104#undef __EXTERN_INLINE
105#undef __IO_EXTERN_INLINE
106#endif
107
108#endif /* __KERNEL__ */
109
110#endif /* __ALPHA_POLARIS__H__ */
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __ALPHA_POLARIS__H__
3#define __ALPHA_POLARIS__H__
4
5#include <linux/types.h>
6#include <asm/compiler.h>
7
8/*
9 * POLARIS is the internal name for a core logic chipset which provides
10 * memory controller and PCI access for the 21164PC chip based systems.
11 *
12 * This file is based on:
13 *
14 * Polaris System Controller
15 * Device Functional Specification
16 * 22-Jan-98
17 * Rev. 4.2
18 *
19 */
20
21/* Polaris memory regions */
22#define POLARIS_SPARSE_MEM_BASE (IDENT_ADDR + 0xf800000000UL)
23#define POLARIS_DENSE_MEM_BASE (IDENT_ADDR + 0xf900000000UL)
24#define POLARIS_SPARSE_IO_BASE (IDENT_ADDR + 0xf980000000UL)
25#define POLARIS_SPARSE_CONFIG_BASE (IDENT_ADDR + 0xf9c0000000UL)
26#define POLARIS_IACK_BASE (IDENT_ADDR + 0xf9f8000000UL)
27#define POLARIS_DENSE_IO_BASE (IDENT_ADDR + 0xf9fc000000UL)
28#define POLARIS_DENSE_CONFIG_BASE (IDENT_ADDR + 0xf9fe000000UL)
29
30#define POLARIS_IACK_SC POLARIS_IACK_BASE
31
32/* The Polaris command/status registers live in PCI Config space for
33 * bus 0/device 0. As such, they may be bytes, words, or doublewords.
34 */
35#define POLARIS_W_VENID (POLARIS_DENSE_CONFIG_BASE)
36#define POLARIS_W_DEVID (POLARIS_DENSE_CONFIG_BASE+2)
37#define POLARIS_W_CMD (POLARIS_DENSE_CONFIG_BASE+4)
38#define POLARIS_W_STATUS (POLARIS_DENSE_CONFIG_BASE+6)
39
40/*
41 * Data structure for handling POLARIS machine checks:
42 */
43struct el_POLARIS_sysdata_mcheck {
44 u_long psc_status;
45 u_long psc_pcictl0;
46 u_long psc_pcictl1;
47 u_long psc_pcictl2;
48};
49
50#ifdef __KERNEL__
51
52#ifndef __EXTERN_INLINE
53#define __EXTERN_INLINE extern inline
54#define __IO_EXTERN_INLINE
55#endif
56
57/*
58 * I/O functions:
59 *
60 * POLARIS, the PCI/memory support chipset for the PCA56 (21164PC)
61 * processors, can use either a sparse address mapping scheme, or the
62 * so-called byte-word PCI address space, to get at PCI memory and I/O.
63 *
64 * However, we will support only the BWX form.
65 */
66
67/*
68 * Memory functions. Polaris allows all accesses (byte/word
69 * as well as long/quad) to be done through dense space.
70 *
71 * We will only support DENSE access via BWX insns.
72 */
73
74__EXTERN_INLINE void __iomem *polaris_ioportmap(unsigned long addr)
75{
76 return (void __iomem *)(addr + POLARIS_DENSE_IO_BASE);
77}
78
79__EXTERN_INLINE void __iomem *polaris_ioremap(unsigned long addr,
80 unsigned long size)
81{
82 return (void __iomem *)(addr + POLARIS_DENSE_MEM_BASE);
83}
84
85__EXTERN_INLINE int polaris_is_ioaddr(unsigned long addr)
86{
87 return addr >= POLARIS_SPARSE_MEM_BASE;
88}
89
90__EXTERN_INLINE int polaris_is_mmio(const volatile void __iomem *addr)
91{
92 return (unsigned long)addr < POLARIS_SPARSE_IO_BASE;
93}
94
95#undef __IO_PREFIX
96#define __IO_PREFIX polaris
97#define polaris_trivial_rw_bw 1
98#define polaris_trivial_rw_lq 1
99#define polaris_trivial_io_bw 1
100#define polaris_trivial_io_lq 1
101#define polaris_trivial_iounmap 1
102#include <asm/io_trivial.h>
103
104#ifdef __IO_EXTERN_INLINE
105#undef __EXTERN_INLINE
106#undef __IO_EXTERN_INLINE
107#endif
108
109#endif /* __KERNEL__ */
110
111#endif /* __ALPHA_POLARIS__H__ */