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13#ifndef _AP_BUS_H_
14#define _AP_BUS_H_
15
16#include <linux/device.h>
17#include <linux/types.h>
18#include <linux/hashtable.h>
19#include <asm/isc.h>
20#include <asm/ap.h>
21
22#define AP_DEVICES 256
23#define AP_DOMAINS 256
24#define AP_IOCTLS 256
25#define AP_RESET_TIMEOUT (HZ*0.7)
26#define AP_CONFIG_TIME 30
27#define AP_POLL_TIME 1
28#define AP_DEFAULT_MAX_MSG_SIZE (12 * 1024)
29#define AP_TAPQ_ML_FIELD_CHUNK_SIZE (4096)
30
31extern int ap_domain_index;
32extern atomic_t ap_max_msg_size;
33
34extern DECLARE_HASHTABLE(ap_queues, 8);
35extern spinlock_t ap_queues_lock;
36
37static inline int ap_test_bit(unsigned int *ptr, unsigned int nr)
38{
39 return (*ptr & (0x80000000u >> nr)) != 0;
40}
41
42#define AP_RESPONSE_NORMAL 0x00
43#define AP_RESPONSE_Q_NOT_AVAIL 0x01
44#define AP_RESPONSE_RESET_IN_PROGRESS 0x02
45#define AP_RESPONSE_DECONFIGURED 0x03
46#define AP_RESPONSE_CHECKSTOPPED 0x04
47#define AP_RESPONSE_BUSY 0x05
48#define AP_RESPONSE_INVALID_ADDRESS 0x06
49#define AP_RESPONSE_OTHERWISE_CHANGED 0x07
50#define AP_RESPONSE_Q_FULL 0x10
51#define AP_RESPONSE_NO_PENDING_REPLY 0x10
52#define AP_RESPONSE_INDEX_TOO_BIG 0x11
53#define AP_RESPONSE_NO_FIRST_PART 0x13
54#define AP_RESPONSE_MESSAGE_TOO_BIG 0x15
55#define AP_RESPONSE_REQ_FAC_NOT_INST 0x16
56#define AP_RESPONSE_INVALID_DOMAIN 0x42
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60
61#define AP_DEVICE_TYPE_PCICC 3
62#define AP_DEVICE_TYPE_PCICA 4
63#define AP_DEVICE_TYPE_PCIXCC 5
64#define AP_DEVICE_TYPE_CEX2A 6
65#define AP_DEVICE_TYPE_CEX2C 7
66#define AP_DEVICE_TYPE_CEX3A 8
67#define AP_DEVICE_TYPE_CEX3C 9
68#define AP_DEVICE_TYPE_CEX4 10
69#define AP_DEVICE_TYPE_CEX5 11
70#define AP_DEVICE_TYPE_CEX6 12
71#define AP_DEVICE_TYPE_CEX7 13
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75
76#define AP_FUNC_MEX4K 1
77#define AP_FUNC_CRT4K 2
78#define AP_FUNC_COPRO 3
79#define AP_FUNC_ACCEL 4
80#define AP_FUNC_EP11 5
81#define AP_FUNC_APXA 6
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85
86enum ap_sm_state {
87 AP_SM_STATE_RESET_START = 0,
88 AP_SM_STATE_RESET_WAIT,
89 AP_SM_STATE_SETIRQ_WAIT,
90 AP_SM_STATE_IDLE,
91 AP_SM_STATE_WORKING,
92 AP_SM_STATE_QUEUE_FULL,
93 NR_AP_SM_STATES
94};
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98
99enum ap_sm_event {
100 AP_SM_EVENT_POLL,
101 AP_SM_EVENT_TIMEOUT,
102 NR_AP_SM_EVENTS
103};
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107
108enum ap_sm_wait {
109 AP_SM_WAIT_AGAIN = 0,
110 AP_SM_WAIT_TIMEOUT,
111 AP_SM_WAIT_INTERRUPT,
112 AP_SM_WAIT_NONE,
113 NR_AP_SM_WAIT
114};
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118
119enum ap_dev_state {
120 AP_DEV_STATE_UNINITIATED = 0,
121 AP_DEV_STATE_OPERATING,
122 AP_DEV_STATE_SHUTDOWN,
123 AP_DEV_STATE_ERROR,
124 NR_AP_DEV_STATES
125};
126
127struct ap_device;
128struct ap_message;
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135
136#define AP_DRIVER_FLAG_DEFAULT 0x0001
137
138struct ap_driver {
139 struct device_driver driver;
140 struct ap_device_id *ids;
141 unsigned int flags;
142
143 int (*probe)(struct ap_device *);
144 void (*remove)(struct ap_device *);
145};
146
147#define to_ap_drv(x) container_of((x), struct ap_driver, driver)
148
149int ap_driver_register(struct ap_driver *, struct module *, char *);
150void ap_driver_unregister(struct ap_driver *);
151
152struct ap_device {
153 struct device device;
154 int device_type;
155};
156
157#define to_ap_dev(x) container_of((x), struct ap_device, device)
158
159struct ap_card {
160 struct ap_device ap_dev;
161 int raw_hwtype;
162 unsigned int functions;
163 int queue_depth;
164 int id;
165 unsigned int maxmsgsize;
166 bool config;
167 atomic64_t total_request_count;
168};
169
170#define to_ap_card(x) container_of((x), struct ap_card, ap_dev.device)
171
172struct ap_queue {
173 struct ap_device ap_dev;
174 struct hlist_node hnode;
175 struct ap_card *card;
176 spinlock_t lock;
177 enum ap_dev_state dev_state;
178 bool config;
179 ap_qid_t qid;
180 bool interrupt;
181 int queue_count;
182 int pendingq_count;
183 int requestq_count;
184 u64 total_request_count;
185 int request_timeout;
186 struct timer_list timeout;
187 struct list_head pendingq;
188 struct list_head requestq;
189 struct ap_message *reply;
190 enum ap_sm_state sm_state;
191 int last_err_rc;
192};
193
194#define to_ap_queue(x) container_of((x), struct ap_queue, ap_dev.device)
195
196typedef enum ap_sm_wait (ap_func_t)(struct ap_queue *queue);
197
198
199struct ap_fi {
200 union {
201 u16 cmd;
202 struct {
203 u8 flags;
204 u8 action;
205 };
206 };
207};
208
209
210enum ap_fi_actions {
211 AP_FI_ACTION_CCA_AGENT_FF = 0x01,
212 AP_FI_ACTION_CCA_DOM_INVAL = 0x02,
213 AP_FI_ACTION_NQAP_QID_INVAL = 0x03,
214};
215
216
217enum ap_fi_flags {
218 AP_FI_FLAG_NO_RETRY = 0x01,
219 AP_FI_FLAG_TOGGLE_SPECIAL = 0x02,
220};
221
222struct ap_message {
223 struct list_head list;
224 unsigned long long psmid;
225 void *msg;
226 unsigned int len;
227 unsigned int bufsize;
228 u16 flags;
229 struct ap_fi fi;
230 int rc;
231 void *private;
232
233 void (*receive)(struct ap_queue *, struct ap_message *,
234 struct ap_message *);
235};
236
237#define AP_MSG_FLAG_SPECIAL 1
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243
244static inline void ap_init_message(struct ap_message *ap_msg)
245{
246 memset(ap_msg, 0, sizeof(*ap_msg));
247}
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254static inline void ap_release_message(struct ap_message *ap_msg)
255{
256 kfree_sensitive(ap_msg->msg);
257 kfree_sensitive(ap_msg->private);
258}
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265int ap_send(ap_qid_t, unsigned long long, void *, size_t);
266int ap_recv(ap_qid_t, unsigned long long *, void *, size_t);
267
268enum ap_sm_wait ap_sm_event(struct ap_queue *aq, enum ap_sm_event event);
269enum ap_sm_wait ap_sm_event_loop(struct ap_queue *aq, enum ap_sm_event event);
270
271int ap_queue_message(struct ap_queue *aq, struct ap_message *ap_msg);
272void ap_cancel_message(struct ap_queue *aq, struct ap_message *ap_msg);
273void ap_flush_queue(struct ap_queue *aq);
274
275void *ap_airq_ptr(void);
276void ap_wait(enum ap_sm_wait wait);
277void ap_request_timeout(struct timer_list *t);
278void ap_bus_force_rescan(void);
279
280int ap_test_config_usage_domain(unsigned int domain);
281int ap_test_config_ctrl_domain(unsigned int domain);
282
283void ap_queue_init_reply(struct ap_queue *aq, struct ap_message *ap_msg);
284struct ap_queue *ap_queue_create(ap_qid_t qid, int device_type);
285void ap_queue_prepare_remove(struct ap_queue *aq);
286void ap_queue_remove(struct ap_queue *aq);
287void ap_queue_init_state(struct ap_queue *aq);
288
289struct ap_card *ap_card_create(int id, int queue_depth, int raw_type,
290 int comp_type, unsigned int functions, int ml);
291
292struct ap_perms {
293 unsigned long ioctlm[BITS_TO_LONGS(AP_IOCTLS)];
294 unsigned long apm[BITS_TO_LONGS(AP_DEVICES)];
295 unsigned long aqm[BITS_TO_LONGS(AP_DOMAINS)];
296};
297extern struct ap_perms ap_perms;
298extern struct mutex ap_perms_mutex;
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308struct ap_queue *ap_get_qdev(ap_qid_t qid);
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317int ap_owned_by_def_drv(int card, int queue);
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330int ap_apqn_in_matrix_owned_by_def_drv(unsigned long *apm,
331 unsigned long *aqm);
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345int ap_parse_mask_str(const char *str,
346 unsigned long *bitmap, int bits,
347 struct mutex *lock);
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359int ap_wait_init_apqn_bindings_complete(unsigned long timeout);
360
361void ap_send_config_uevent(struct ap_device *ap_dev, bool cfg);
362void ap_send_online_uevent(struct ap_device *ap_dev, int online);
363
364#endif
365