xref: /openbmc/linux/arch/s390/include/asm/pci_insn.h (revision ba61bb17)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_S390_PCI_INSN_H
3 #define _ASM_S390_PCI_INSN_H
4 
5 /* Load/Store status codes */
6 #define ZPCI_PCI_ST_FUNC_NOT_ENABLED		4
7 #define ZPCI_PCI_ST_FUNC_IN_ERR			8
8 #define ZPCI_PCI_ST_BLOCKED			12
9 #define ZPCI_PCI_ST_INSUF_RES			16
10 #define ZPCI_PCI_ST_INVAL_AS			20
11 #define ZPCI_PCI_ST_FUNC_ALREADY_ENABLED	24
12 #define ZPCI_PCI_ST_DMA_AS_NOT_ENABLED		28
13 #define ZPCI_PCI_ST_2ND_OP_IN_INV_AS		36
14 #define ZPCI_PCI_ST_FUNC_NOT_AVAIL		40
15 #define ZPCI_PCI_ST_ALREADY_IN_RQ_STATE		44
16 
17 /* Load/Store return codes */
18 #define ZPCI_PCI_LS_OK				0
19 #define ZPCI_PCI_LS_ERR				1
20 #define ZPCI_PCI_LS_BUSY			2
21 #define ZPCI_PCI_LS_INVAL_HANDLE		3
22 
23 /* Load/Store address space identifiers */
24 #define ZPCI_PCIAS_MEMIO_0			0
25 #define ZPCI_PCIAS_MEMIO_1			1
26 #define ZPCI_PCIAS_MEMIO_2			2
27 #define ZPCI_PCIAS_MEMIO_3			3
28 #define ZPCI_PCIAS_MEMIO_4			4
29 #define ZPCI_PCIAS_MEMIO_5			5
30 #define ZPCI_PCIAS_CFGSPC			15
31 
32 /* Modify PCI Function Controls */
33 #define ZPCI_MOD_FC_REG_INT	2
34 #define ZPCI_MOD_FC_DEREG_INT	3
35 #define ZPCI_MOD_FC_REG_IOAT	4
36 #define ZPCI_MOD_FC_DEREG_IOAT	5
37 #define ZPCI_MOD_FC_REREG_IOAT	6
38 #define ZPCI_MOD_FC_RESET_ERROR	7
39 #define ZPCI_MOD_FC_RESET_BLOCK	9
40 #define ZPCI_MOD_FC_SET_MEASURE	10
41 
42 /* FIB function controls */
43 #define ZPCI_FIB_FC_ENABLED	0x80
44 #define ZPCI_FIB_FC_ERROR	0x40
45 #define ZPCI_FIB_FC_LS_BLOCKED	0x20
46 #define ZPCI_FIB_FC_DMAAS_REG	0x10
47 
48 /* FIB function controls */
49 #define ZPCI_FIB_FC_ENABLED	0x80
50 #define ZPCI_FIB_FC_ERROR	0x40
51 #define ZPCI_FIB_FC_LS_BLOCKED	0x20
52 #define ZPCI_FIB_FC_DMAAS_REG	0x10
53 
54 /* Function Information Block */
55 struct zpci_fib {
56 	u32 fmt		:  8;	/* format */
57 	u32		: 24;
58 	u32		: 32;
59 	u8 fc;			/* function controls */
60 	u64		: 56;
61 	u64 pba;		/* PCI base address */
62 	u64 pal;		/* PCI address limit */
63 	u64 iota;		/* I/O Translation Anchor */
64 	u32		:  1;
65 	u32 isc		:  3;	/* Interrupt subclass */
66 	u32 noi		: 12;	/* Number of interrupts */
67 	u32		:  2;
68 	u32 aibvo	:  6;	/* Adapter interrupt bit vector offset */
69 	u32 sum		:  1;	/* Adapter int summary bit enabled */
70 	u32		:  1;
71 	u32 aisbo	:  6;	/* Adapter int summary bit offset */
72 	u32		: 32;
73 	u64 aibv;		/* Adapter int bit vector address */
74 	u64 aisb;		/* Adapter int summary bit address */
75 	u64 fmb_addr;		/* Function measurement block address and key */
76 	u32		: 32;
77 	u32 gd;
78 } __packed __aligned(8);
79 
80 u8 zpci_mod_fc(u64 req, struct zpci_fib *fib, u8 *status);
81 int zpci_refresh_trans(u64 fn, u64 addr, u64 range);
82 int zpci_load(u64 *data, u64 req, u64 offset);
83 int zpci_store(u64 data, u64 req, u64 offset);
84 int zpci_store_block(const u64 *data, u64 req, u64 offset);
85 int zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc);
86 
87 #endif
88