include/asm/airq.h

1 /* SPDX-License-Identifier: GPL-2.0 */
14 #include <linux/dma-mapping.h>
19 	u8 *lsi_ptr;			/* Local-Summary-Indicator pointer */
20 	u8 lsi_mask;			/* Local-Summary-Indicator mask */
21 	u8 isc;				/* Interrupt-subclass */
32 	unsigned long *vector;	/* Adapter interrupt bit vector */
34 	unsigned long *avail;	/* Allocation bit mask for the bit vector */
35 	unsigned long *bitlock;	/* Lock bit mask for the bit vector */
36 	unsigned long *ptr;	/* Pointer associated with each bit */
38 	unsigned long bits;	/* Number of bits in the vector */
39 	unsigned long end;	/* Number of highest allocated bit + 1 */
40 	unsigned long flags;	/* Allocation flags */
50 struct airq_iv *airq_iv_create(unsigned long bits, unsigned long flags);
52 unsigned long airq_iv_alloc(struct airq_iv *iv, unsigned long num);
53 void airq_iv_free(struct airq_iv *iv, unsigned long bit, unsigned long num);
54 unsigned long airq_iv_scan(struct airq_iv *iv, unsigned long start,
55 			   unsigned long end);
57 static inline unsigned long airq_iv_alloc_bit(struct airq_iv *iv)  in airq_iv_alloc_bit()
62 static inline void airq_iv_free_bit(struct airq_iv *iv, unsigned long bit)  in airq_iv_free_bit()
67 static inline unsigned long airq_iv_end(struct airq_iv *iv)  in airq_iv_end()
69 	return iv->end;  in airq_iv_end()
72 static inline void airq_iv_lock(struct airq_iv *iv, unsigned long bit)  in airq_iv_lock()
74 	const unsigned long be_to_le = BITS_PER_LONG - 1;  in airq_iv_lock()
75 	bit_spin_lock(bit ^ be_to_le, iv->bitlock);  in airq_iv_lock()
78 static inline void airq_iv_unlock(struct airq_iv *iv, unsigned long bit)  in airq_iv_unlock()
80 	const unsigned long be_to_le = BITS_PER_LONG - 1;  in airq_iv_unlock()
81 	bit_spin_unlock(bit ^ be_to_le, iv->bitlock);  in airq_iv_unlock()
84 static inline void airq_iv_set_data(struct airq_iv *iv, unsigned long bit,  in airq_iv_set_data()
87 	iv->data[bit] = data;  in airq_iv_set_data()
91 					    unsigned long bit)  in airq_iv_get_data()
93 	return iv->data[bit];  in airq_iv_get_data()
96 static inline void airq_iv_set_ptr(struct airq_iv *iv, unsigned long bit,  in airq_iv_set_ptr()
97 				   unsigned long ptr)  in airq_iv_set_ptr()
99 	iv->ptr[bit] = ptr;  in airq_iv_set_ptr()
102 static inline unsigned long airq_iv_get_ptr(struct airq_iv *iv,  in airq_iv_get_ptr()
103 					    unsigned long bit)  in airq_iv_get_ptr()
105 	return iv->ptr[bit];  in airq_iv_get_ptr()