xref: /titanic_41/usr/src/uts/common/io/pciex/pcieb.h (revision 5203bc321053fb87d7073c7640548fab73634793)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23  */
24 
25 #ifndef _SYS_PCIEB_H
26 #define	_SYS_PCIEB_H
27 
28 #ifdef	__cplusplus
29 extern "C" {
30 #endif
31 
32 #if defined(DEBUG)
33 #define	PCIEB_DEBUG pcieb_dbg
34 extern void pcieb_dbg(uint_t bit, dev_info_t *dip, char *fmt, ...);
35 #else /* DEBUG */
36 #define	PCIEB_DEBUG 0 &&
37 #endif /* DEBUG */
38 
39 typedef enum {	/* same sequence as pcieb_debug_sym[] */
40 	/*  0 */ DBG_ATTACH,
41 	/*  1 */ DBG_PWR,
42 	/*  2 */ DBG_INTR
43 } pcieb_debug_bit_t;
44 
45 /*
46  * Intel specific register offsets with bit definitions.
47  */
48 #define	PCIEB_PX_CAPABILITY_ID	0x44
49 #define	PCIEB_BRIDGE_CONF		0x40
50 
51 /*
52  * PCI/PCI-E Configuration register specific values.
53  */
54 #define	PX_PMODE	0x4000		/* PCI/PCIX Mode */
55 #define	PX_PFREQ_66	0x200		/* PCI clock frequency */
56 #define	PX_PFREQ_100	0x400
57 #define	PX_PFREQ_133	0x600
58 #define	PX_PMRE		0x80		/* Peer memory read enable */
59 
60 /*
61  * Downstream delayed transaction resource partitioning.
62  */
63 #define	PX_ODTP		0x40		/* Max. of two entries PX and PCI */
64 
65 /*
66  * Maximum upstream delayed transaction.
67  */
68 #define	PX_MDT_44	0x00
69 #define	PX_MDT_11	0x01
70 #define	PX_MDT_22	0x10
71 
72 #define	NUM_LOGICAL_SLOTS	32
73 #define	PCIEB_RANGE_LEN		2
74 #define	PCIEB_32BIT_IO		1
75 #define	PCIEB_32bit_MEM		1
76 #define	PCIEB_MEMGRAIN		0x100000
77 #define	PCIEB_IOGRAIN		0x1000
78 
79 #define	PCIEB_16bit_IOADDR(addr) ((uint16_t)(((uint8_t)(addr) & 0xF0) << 8))
80 #define	PCIEB_LADDR(lo, hi) (((uint16_t)(hi) << 16) | (uint16_t)(lo))
81 #define	PCIEB_32bit_MEMADDR(addr) (PCIEB_LADDR(0, ((uint16_t)(addr) & 0xFFF0)))
82 
83 /*
84  * Intel 41210 PCIe-to-PCI Bridge has two Functions F0 and F2:
85  * VID: 0x8086
86  * DID: F0 = 0x340, F2 = 0x341
87  */
88 #define	PCIEB_IS_41210_F0(bus_dev_ven_id) (bus_dev_ven_id == 0x3408086)
89 #define	PCIEB_IS_41210_F2(bus_dev_ven_id) (bus_dev_ven_id == 0x3418086)
90 #define	PCIEB_IS_41210_BRIDGE(bus_dev_ven_id) \
91 	(PCIEB_IS_41210_F0(bus_dev_ven_id) || PCIEB_IS_41210_F2(bus_dev_ven_id))
92 
93 typedef struct {
94 	dev_info_t		*pcieb_dip;
95 
96 	/* Interrupt support */
97 	ddi_intr_handle_t	*pcieb_htable;		/* Intr Handlers */
98 	int			pcieb_htable_size;	/* htable size */
99 	int			pcieb_intr_count;	/* Num of Intr */
100 	uint_t			pcieb_intr_priority;	/* Intr Priority */
101 	int			pcieb_intr_type;	/* (MSI | FIXED) */
102 	int			pcieb_isr_tab[4];	/* MSI source offset */
103 
104 	int			pcieb_init_flags;
105 	kmutex_t		pcieb_mutex;		/* Soft state mutex */
106 	kmutex_t		pcieb_intr_mutex;	/* Intr handler mutex */
107 	kmutex_t		pcieb_err_mutex;	/* Error mutex */
108 	kmutex_t		pcieb_peek_poke_mutex;  /* Peekpoke mutex */
109 
110 	/* FMA */
111 	boolean_t		pcieb_no_aer_msi;
112 	ddi_iblock_cookie_t	pcieb_fm_ibc;
113 } pcieb_devstate_t;
114 
115 /*
116  * soft state pointer
117  */
118 extern void *pcieb_state;
119 
120 /* soft state flags */
121 #define	PCIEB_SOFT_STATE_CLOSED		0x00
122 #define	PCIEB_SOFT_STATE_OPEN		0x01
123 #define	PCIEB_SOFT_STATE_OPEN_EXCL	0x02
124 
125 /* init flags */
126 #define	PCIEB_INIT_MUTEX		0x01
127 #define	PCIEB_INIT_HTABLE		0x02
128 #define	PCIEB_INIT_ALLOC		0x04
129 #define	PCIEB_INIT_HANDLER		0x08
130 #define	PCIEB_INIT_ENABLE		0x10
131 #define	PCIEB_INIT_BLOCK		0x20
132 #define	PCIEB_INIT_FM			0x40
133 
134 #define	PCIEB_INTR_SRC_UNKNOWN	0x0	/* must be 0 */
135 #define	PCIEB_INTR_SRC_HP	0x1
136 #define	PCIEB_INTR_SRC_PME	0x2
137 #define	PCIEB_INTR_SRC_AER	0x4
138 
139 /*
140  * Need to put vendor ids in a common file and not platform specific files
141  * as is done today. Until then putting this vendor id define here.
142  */
143 #define	NVIDIA_VENDOR_ID	0x10de	/* Nvidia Vendor Id */
144 
145 #ifdef	PCIEB_BCM
146 
147 /* Workaround for address space limitation in Broadcom 5714/5715 */
148 #define	PCIEB_ADDR_LIMIT_LO		0ull
149 #define	PCIEB_ADDR_LIMIT_HI		((1ull << 40) - 1)
150 
151 #endif	/* PCIEB_BCM */
152 
153 /*
154  * The following values are used to initialize the cache line size
155  * and latency timer registers for PCI, PCI-X and PCIe2PCI devices.
156  */
157 #define	PCIEB_CACHE_LINE_SIZE	0x10	/* 64 bytes in # of DWORDs */
158 #define	PCIEB_LATENCY_TIMER	0x40	/* 64 PCI cycles */
159 
160 extern void	pcieb_set_pci_perf_parameters(dev_info_t *dip,
161 		    ddi_acc_handle_t config_handle);
162 extern void	pcieb_plat_attach_workaround(dev_info_t *dip);
163 extern void 	pcieb_plat_intr_attach(pcieb_devstate_t *pcieb);
164 extern void 	pcieb_plat_initchild(dev_info_t *child);
165 extern void 	pcieb_plat_uninitchild(dev_info_t *child);
166 extern int	pcieb_plat_ctlops(dev_info_t *rdip, ddi_ctl_enum_t ctlop,
167     void *arg);
168 extern int 	pcieb_plat_pcishpc_probe(dev_info_t *dip,
169     ddi_acc_handle_t config_handle);
170 extern int	pcieb_plat_peekpoke(dev_info_t *dip, dev_info_t *rdip,
171     ddi_ctl_enum_t ctlop, void *arg, void *result);
172 extern void	pcieb_set_prot_scan(dev_info_t *dip, ddi_acc_impl_t *hdlp);
173 extern int	pcieb_plat_intr_ops(dev_info_t *dip, dev_info_t *rdip,
174     ddi_intr_op_t intr_op, ddi_intr_handle_impl_t *hdlp, void *result);
175 extern boolean_t	pcieb_plat_msi_supported(dev_info_t *dip);
176 extern boolean_t	pcieb_plat_pwr_disable(dev_info_t *dip);
177 
178 #if defined(__i386) || defined(__amd64)
179 extern void	pcieb_intel_error_workaround(dev_info_t *dip);
180 extern void	pcieb_intel_serr_workaround(dev_info_t *dip, boolean_t mcheck);
181 extern void	pcieb_intel_rber_workaround(dev_info_t *dip);
182 extern void	pcieb_intel_sw_workaround(dev_info_t *dip);
183 extern void	pcieb_intel_mps_workaround(dev_info_t *dip);
184 extern void	pcieb_init_osc(dev_info_t *dip);
185 extern void	pcieb_peekpoke_cb(dev_info_t *, ddi_fm_error_t *);
186 extern int	pcishpc_init(dev_info_t *dip);
187 extern int	pcishpc_uninit(dev_info_t *dip);
188 extern int	pcishpc_intr(dev_info_t *dip);
189 #endif /* defined(__i386) || defined(__amd64) */
190 
191 #ifdef PX_PLX
192 extern void	pcieb_attach_plx_workarounds(pcieb_devstate_t *pcieb);
193 extern int	pcieb_init_plx_workarounds(pcieb_devstate_t *pcieb,
194     dev_info_t *child);
195 #endif /* PX_PLX */
196 
197 #ifdef	__cplusplus
198 }
199 #endif
200 
201 #endif	/* _SYS_PCIEB_H */
202