1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _X86_POSTED_INTR_H
3 #define _X86_POSTED_INTR_H
4
5 #define POSTED_INTR_ON 0
6 #define POSTED_INTR_SN 1
7
8 #define PID_TABLE_ENTRY_VALID 1
9
10 /* Posted-Interrupt Descriptor */
11 struct pi_desc {
12 u32 pir[8]; /* Posted interrupt requested */
13 union {
14 struct {
15 /* bit 256 - Outstanding Notification */
16 u16 on : 1,
17 /* bit 257 - Suppress Notification */
18 sn : 1,
19 /* bit 271:258 - Reserved */
20 rsvd_1 : 14;
21 /* bit 279:272 - Notification Vector */
22 u8 nv;
23 /* bit 287:280 - Reserved */
24 u8 rsvd_2;
25 /* bit 319:288 - Notification Destination */
26 u32 ndst;
27 };
28 u64 control;
29 };
30 u32 rsvd[6];
31 } __aligned(64);
32
pi_test_and_set_on(struct pi_desc * pi_desc)33 static inline bool pi_test_and_set_on(struct pi_desc *pi_desc)
34 {
35 return test_and_set_bit(POSTED_INTR_ON, (unsigned long *)&pi_desc->control);
36 }
37
pi_test_and_clear_on(struct pi_desc * pi_desc)38 static inline bool pi_test_and_clear_on(struct pi_desc *pi_desc)
39 {
40 return test_and_clear_bit(POSTED_INTR_ON, (unsigned long *)&pi_desc->control);
41 }
42
pi_test_and_clear_sn(struct pi_desc * pi_desc)43 static inline bool pi_test_and_clear_sn(struct pi_desc *pi_desc)
44 {
45 return test_and_clear_bit(POSTED_INTR_SN, (unsigned long *)&pi_desc->control);
46 }
47
pi_test_and_set_pir(int vector,struct pi_desc * pi_desc)48 static inline bool pi_test_and_set_pir(int vector, struct pi_desc *pi_desc)
49 {
50 return test_and_set_bit(vector, (unsigned long *)pi_desc->pir);
51 }
52
pi_is_pir_empty(struct pi_desc * pi_desc)53 static inline bool pi_is_pir_empty(struct pi_desc *pi_desc)
54 {
55 return bitmap_empty((unsigned long *)pi_desc->pir, NR_VECTORS);
56 }
57
pi_set_sn(struct pi_desc * pi_desc)58 static inline void pi_set_sn(struct pi_desc *pi_desc)
59 {
60 set_bit(POSTED_INTR_SN, (unsigned long *)&pi_desc->control);
61 }
62
pi_set_on(struct pi_desc * pi_desc)63 static inline void pi_set_on(struct pi_desc *pi_desc)
64 {
65 set_bit(POSTED_INTR_ON, (unsigned long *)&pi_desc->control);
66 }
67
pi_clear_on(struct pi_desc * pi_desc)68 static inline void pi_clear_on(struct pi_desc *pi_desc)
69 {
70 clear_bit(POSTED_INTR_ON, (unsigned long *)&pi_desc->control);
71 }
72
pi_clear_sn(struct pi_desc * pi_desc)73 static inline void pi_clear_sn(struct pi_desc *pi_desc)
74 {
75 clear_bit(POSTED_INTR_SN, (unsigned long *)&pi_desc->control);
76 }
77
pi_test_on(struct pi_desc * pi_desc)78 static inline bool pi_test_on(struct pi_desc *pi_desc)
79 {
80 return test_bit(POSTED_INTR_ON, (unsigned long *)&pi_desc->control);
81 }
82
pi_test_sn(struct pi_desc * pi_desc)83 static inline bool pi_test_sn(struct pi_desc *pi_desc)
84 {
85 return test_bit(POSTED_INTR_SN, (unsigned long *)&pi_desc->control);
86 }
87
88 #endif /* _X86_POSTED_INTR_H */
89