1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_S390_PCI_INSN_H
3#define _ASM_S390_PCI_INSN_H
4
5#include <linux/jump_label.h>
6
7/* Load/Store status codes */
8#define ZPCI_PCI_ST_FUNC_NOT_ENABLED		4
9#define ZPCI_PCI_ST_FUNC_IN_ERR			8
10#define ZPCI_PCI_ST_BLOCKED			12
11#define ZPCI_PCI_ST_INSUF_RES			16
12#define ZPCI_PCI_ST_INVAL_AS			20
13#define ZPCI_PCI_ST_FUNC_ALREADY_ENABLED	24
14#define ZPCI_PCI_ST_DMA_AS_NOT_ENABLED		28
15#define ZPCI_PCI_ST_2ND_OP_IN_INV_AS		36
16#define ZPCI_PCI_ST_FUNC_NOT_AVAIL		40
17#define ZPCI_PCI_ST_ALREADY_IN_RQ_STATE		44
18
19/* Load/Store return codes */
20#define ZPCI_PCI_LS_OK				0
21#define ZPCI_PCI_LS_ERR				1
22#define ZPCI_PCI_LS_BUSY			2
23#define ZPCI_PCI_LS_INVAL_HANDLE		3
24
25/* Load/Store address space identifiers */
26#define ZPCI_PCIAS_MEMIO_0			0
27#define ZPCI_PCIAS_MEMIO_1			1
28#define ZPCI_PCIAS_MEMIO_2			2
29#define ZPCI_PCIAS_MEMIO_3			3
30#define ZPCI_PCIAS_MEMIO_4			4
31#define ZPCI_PCIAS_MEMIO_5			5
32#define ZPCI_PCIAS_CFGSPC			15
33
34/* Modify PCI Function Controls */
35#define ZPCI_MOD_FC_REG_INT	2
36#define ZPCI_MOD_FC_DEREG_INT	3
37#define ZPCI_MOD_FC_REG_IOAT	4
38#define ZPCI_MOD_FC_DEREG_IOAT	5
39#define ZPCI_MOD_FC_REREG_IOAT	6
40#define ZPCI_MOD_FC_RESET_ERROR	7
41#define ZPCI_MOD_FC_RESET_BLOCK	9
42#define ZPCI_MOD_FC_SET_MEASURE	10
43#define ZPCI_MOD_FC_REG_INT_D	16
44#define ZPCI_MOD_FC_DEREG_INT_D	17
45
46/* FIB function controls */
47#define ZPCI_FIB_FC_ENABLED	0x80
48#define ZPCI_FIB_FC_ERROR	0x40
49#define ZPCI_FIB_FC_LS_BLOCKED	0x20
50#define ZPCI_FIB_FC_DMAAS_REG	0x10
51
52/* FIB function controls */
53#define ZPCI_FIB_FC_ENABLED	0x80
54#define ZPCI_FIB_FC_ERROR	0x40
55#define ZPCI_FIB_FC_LS_BLOCKED	0x20
56#define ZPCI_FIB_FC_DMAAS_REG	0x10
57
58struct zpci_fib_fmt0 {
59	u32		:  1;
60	u32 isc		:  3;	/* Interrupt subclass */
61	u32 noi		: 12;	/* Number of interrupts */
62	u32		:  2;
63	u32 aibvo	:  6;	/* Adapter interrupt bit vector offset */
64	u32 sum		:  1;	/* Adapter int summary bit enabled */
65	u32		:  1;
66	u32 aisbo	:  6;	/* Adapter int summary bit offset */
67	u32		: 32;
68	u64 aibv;		/* Adapter int bit vector address */
69	u64 aisb;		/* Adapter int summary bit address */
70};
71
72struct zpci_fib_fmt1 {
73	u32		:  4;
74	u32 noi		: 12;
75	u32		: 16;
76	u32 dibvo	: 16;
77	u32		: 16;
78	u64		: 64;
79	u64		: 64;
80};
81
82/* Function Information Block */
83struct zpci_fib {
84	u32 fmt		:  8;	/* format */
85	u32		: 24;
86	u32		: 32;
87	u8 fc;			/* function controls */
88	u64		: 56;
89	u64 pba;		/* PCI base address */
90	u64 pal;		/* PCI address limit */
91	u64 iota;		/* I/O Translation Anchor */
92	union {
93		struct zpci_fib_fmt0 fmt0;
94		struct zpci_fib_fmt1 fmt1;
95	};
96	u64 fmb_addr;		/* Function measurement block address and key */
97	u32		: 32;
98	u32 gd;
99} __packed __aligned(8);
100
101/* directed interruption information block */
102struct zpci_diib {
103	u32 : 1;
104	u32 isc : 3;
105	u32 : 28;
106	u16 : 16;
107	u16 nr_cpus;
108	u64 disb_addr;
109	u64 : 64;
110	u64 : 64;
111} __packed __aligned(8);
112
113/* cpu directed interruption information block */
114struct zpci_cdiib {
115	u64 : 64;
116	u64 dibv_addr;
117	u64 : 64;
118	u64 : 64;
119	u64 : 64;
120} __packed __aligned(8);
121
122union zpci_sic_iib {
123	struct zpci_diib diib;
124	struct zpci_cdiib cdiib;
125};
126
127DECLARE_STATIC_KEY_FALSE(have_mio);
128
129u8 zpci_mod_fc(u64 req, struct zpci_fib *fib, u8 *status);
130int zpci_refresh_trans(u64 fn, u64 addr, u64 range);
131int __zpci_load(u64 *data, u64 req, u64 offset);
132int zpci_load(u64 *data, const volatile void __iomem *addr, unsigned long len);
133int __zpci_store(u64 data, u64 req, u64 offset);
134int zpci_store(const volatile void __iomem *addr, u64 data, unsigned long len);
135int __zpci_store_block(const u64 *data, u64 req, u64 offset);
136void zpci_barrier(void);
137int __zpci_set_irq_ctrl(u16 ctl, u8 isc, union zpci_sic_iib *iib);
138
139static inline int zpci_set_irq_ctrl(u16 ctl, u8 isc)
140{
141	union zpci_sic_iib iib = {{0}};
142
143	return __zpci_set_irq_ctrl(ctl, isc, &iib);
144}
145
146#endif
147