32 static inline void _mpic_msgr_mer_write(struct mpic_msgr *msgr, u32 value)  in _mpic_msgr_mer_write()  argument
34 	out_be32(msgr->mer, value);  in _mpic_msgr_mer_write()
37 static inline u32 _mpic_msgr_mer_read(struct mpic_msgr *msgr)  in _mpic_msgr_mer_read()  argument
39 	return in_be32(msgr->mer);  in _mpic_msgr_mer_read()
42 static inline void _mpic_msgr_disable(struct mpic_msgr *msgr)  in _mpic_msgr_disable()  argument
44 	u32 mer = _mpic_msgr_mer_read(msgr);  in _mpic_msgr_disable()
46 	_mpic_msgr_mer_write(msgr, mer & ~(1 << msgr->num));  in _mpic_msgr_disable()
52 	struct mpic_msgr *msgr;  in mpic_msgr_get()  local
55 	msgr = ERR_PTR(-EBUSY);  in mpic_msgr_get()
61 	msgr = mpic_msgrs[reg_num];  in mpic_msgr_get()
62 	if (msgr->in_use == MSGR_FREE)  in mpic_msgr_get()
63 		msgr->in_use = MSGR_INUSE;  in mpic_msgr_get()
66 	return msgr;  in mpic_msgr_get()
70 void mpic_msgr_put(struct mpic_msgr *msgr)  in mpic_msgr_put()  argument
74 	raw_spin_lock_irqsave(&msgr->lock, flags);  in mpic_msgr_put()
75 	msgr->in_use = MSGR_FREE;  in mpic_msgr_put()
76 	_mpic_msgr_disable(msgr);  in mpic_msgr_put()
77 	raw_spin_unlock_irqrestore(&msgr->lock, flags);  in mpic_msgr_put()
81 void mpic_msgr_enable(struct mpic_msgr *msgr)  in mpic_msgr_enable()  argument
86 	raw_spin_lock_irqsave(&msgr->lock, flags);  in mpic_msgr_enable()
87 	mer = _mpic_msgr_mer_read(msgr);  in mpic_msgr_enable()
88 	_mpic_msgr_mer_write(msgr, mer | (1 << msgr->num));  in mpic_msgr_enable()
89 	raw_spin_unlock_irqrestore(&msgr->lock, flags);  in mpic_msgr_enable()
93 void mpic_msgr_disable(struct mpic_msgr *msgr)  in mpic_msgr_disable()  argument
97 	raw_spin_lock_irqsave(&msgr->lock, flags);  in mpic_msgr_disable()
98 	_mpic_msgr_disable(msgr);  in mpic_msgr_disable()
99 	raw_spin_unlock_irqrestore(&msgr->lock, flags);  in mpic_msgr_disable()
227 		struct mpic_msgr *msgr;  in mpic_msgr_probe()  local
230 		msgr = kzalloc(sizeof(struct mpic_msgr), GFP_KERNEL);  in mpic_msgr_probe()
231 		if (!msgr) {  in mpic_msgr_probe()
237 		msgr->base = msgr_block_addr + i * MPIC_MSGR_STRIDE;  in mpic_msgr_probe()
238 		msgr->mer = msgr->base + MPIC_MSGR_MER_OFFSET;  in mpic_msgr_probe()
239 		msgr->in_use = MSGR_FREE;  in mpic_msgr_probe()
240 		msgr->num = i;  in mpic_msgr_probe()
241 		raw_spin_lock_init(&msgr->lock);  in mpic_msgr_probe()
244 			msgr->irq = irq_of_parse_and_map(np, irq_index);  in mpic_msgr_probe()
245 			if (!msgr->irq) {  in mpic_msgr_probe()
248 				kfree(msgr);  in mpic_msgr_probe()
253 			msgr->irq = 0;  in mpic_msgr_probe()
256 		mpic_msgrs[reg_number] = msgr;  in mpic_msgr_probe()
257 		mpic_msgr_disable(msgr);  in mpic_msgr_probe()
259 				reg_number, msgr->irq);  in mpic_msgr_probe()