35 static inline void _mpic_msgr_mer_write(struct mpic_msgr *msgr, u32 value)  in _mpic_msgr_mer_write()  argument
37 	out_be32(msgr->mer, value);  in _mpic_msgr_mer_write()
40 static inline u32 _mpic_msgr_mer_read(struct mpic_msgr *msgr)  in _mpic_msgr_mer_read()  argument
42 	return in_be32(msgr->mer);  in _mpic_msgr_mer_read()
45 static inline void _mpic_msgr_disable(struct mpic_msgr *msgr)  in _mpic_msgr_disable()  argument
47 	u32 mer = _mpic_msgr_mer_read(msgr);  in _mpic_msgr_disable()
49 	_mpic_msgr_mer_write(msgr, mer & ~(1 << msgr->num));  in _mpic_msgr_disable()
55 	struct mpic_msgr *msgr;  in mpic_msgr_get()  local
58 	msgr = ERR_PTR(-EBUSY);  in mpic_msgr_get()
64 	msgr = mpic_msgrs[reg_num];  in mpic_msgr_get()
65 	if (msgr->in_use == MSGR_FREE)  in mpic_msgr_get()
66 		msgr->in_use = MSGR_INUSE;  in mpic_msgr_get()
69 	return msgr;  in mpic_msgr_get()
73 void mpic_msgr_put(struct mpic_msgr *msgr)  in mpic_msgr_put()  argument
77 	raw_spin_lock_irqsave(&msgr->lock, flags);  in mpic_msgr_put()
78 	msgr->in_use = MSGR_FREE;  in mpic_msgr_put()
79 	_mpic_msgr_disable(msgr);  in mpic_msgr_put()
80 	raw_spin_unlock_irqrestore(&msgr->lock, flags);  in mpic_msgr_put()
84 void mpic_msgr_enable(struct mpic_msgr *msgr)  in mpic_msgr_enable()  argument
89 	raw_spin_lock_irqsave(&msgr->lock, flags);  in mpic_msgr_enable()
90 	mer = _mpic_msgr_mer_read(msgr);  in mpic_msgr_enable()
91 	_mpic_msgr_mer_write(msgr, mer | (1 << msgr->num));  in mpic_msgr_enable()
92 	raw_spin_unlock_irqrestore(&msgr->lock, flags);  in mpic_msgr_enable()
96 void mpic_msgr_disable(struct mpic_msgr *msgr)  in mpic_msgr_disable()  argument
100 	raw_spin_lock_irqsave(&msgr->lock, flags);  in mpic_msgr_disable()
101 	_mpic_msgr_disable(msgr);  in mpic_msgr_disable()
102 	raw_spin_unlock_irqrestore(&msgr->lock, flags);  in mpic_msgr_disable()
223 		struct mpic_msgr *msgr;  in mpic_msgr_probe()  local
226 		msgr = kzalloc(sizeof(struct mpic_msgr), GFP_KERNEL);  in mpic_msgr_probe()
227 		if (!msgr) {  in mpic_msgr_probe()
233 		msgr->base = msgr_block_addr + i * MPIC_MSGR_STRIDE;  in mpic_msgr_probe()
234 		msgr->mer = (u32 *)((u8 *)msgr->base + MPIC_MSGR_MER_OFFSET);  in mpic_msgr_probe()
235 		msgr->in_use = MSGR_FREE;  in mpic_msgr_probe()
236 		msgr->num = i;  in mpic_msgr_probe()
237 		raw_spin_lock_init(&msgr->lock);  in mpic_msgr_probe()
240 			msgr->irq = irq_of_parse_and_map(np, irq_index);  in mpic_msgr_probe()
241 			if (msgr->irq == NO_IRQ) {  in mpic_msgr_probe()
244 				kfree(msgr);  in mpic_msgr_probe()
249 			msgr->irq = NO_IRQ;  in mpic_msgr_probe()
252 		mpic_msgrs[reg_number] = msgr;  in mpic_msgr_probe()
253 		mpic_msgr_disable(msgr);  in mpic_msgr_probe()
255 				reg_number, msgr->irq);  in mpic_msgr_probe()