Viewing file:  posted_intr.h (2.14 KB) -rw-r--r--
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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _X86_POSTED_INTR_H
#define _X86_POSTED_INTR_H
#define POSTED_INTR_ON 0
#define POSTED_INTR_SN 1
#define PID_TABLE_ENTRY_VALID 1
/* Posted-Interrupt Descriptor */
struct pi_desc {
u32 pir[8]; /* Posted interrupt requested */
union {
struct {
/* bit 256 - Outstanding Notification */
u16 on : 1,
/* bit 257 - Suppress Notification */
sn : 1,
/* bit 271:258 - Reserved */
rsvd_1 : 14;
/* bit 279:272 - Notification Vector */
u8 nv;
/* bit 287:280 - Reserved */
u8 rsvd_2;
/* bit 319:288 - Notification Destination */
u32 ndst;
};
u64 control;
};
u32 rsvd[6];
} __aligned(64);
static inline bool pi_test_and_set_on(struct pi_desc *pi_desc)
{
return test_and_set_bit(POSTED_INTR_ON, (unsigned long *)&pi_desc->control);
}
static inline bool pi_test_and_clear_on(struct pi_desc *pi_desc)
{
return test_and_clear_bit(POSTED_INTR_ON, (unsigned long *)&pi_desc->control);
}
static inline bool pi_test_and_clear_sn(struct pi_desc *pi_desc)
{
return test_and_clear_bit(POSTED_INTR_SN, (unsigned long *)&pi_desc->control);
}
static inline bool pi_test_and_set_pir(int vector, struct pi_desc *pi_desc)
{
return test_and_set_bit(vector, (unsigned long *)pi_desc->pir);
}
static inline bool pi_is_pir_empty(struct pi_desc *pi_desc)
{
return bitmap_empty((unsigned long *)pi_desc->pir, NR_VECTORS);
}
static inline void pi_set_sn(struct pi_desc *pi_desc)
{
set_bit(POSTED_INTR_SN, (unsigned long *)&pi_desc->control);
}
static inline void pi_set_on(struct pi_desc *pi_desc)
{
set_bit(POSTED_INTR_ON, (unsigned long *)&pi_desc->control);
}
static inline void pi_clear_on(struct pi_desc *pi_desc)
{
clear_bit(POSTED_INTR_ON, (unsigned long *)&pi_desc->control);
}
static inline void pi_clear_sn(struct pi_desc *pi_desc)
{
clear_bit(POSTED_INTR_SN, (unsigned long *)&pi_desc->control);
}
static inline bool pi_test_on(struct pi_desc *pi_desc)
{
return test_bit(POSTED_INTR_ON, (unsigned long *)&pi_desc->control);
}
static inline bool pi_test_sn(struct pi_desc *pi_desc)
{
return test_bit(POSTED_INTR_SN, (unsigned long *)&pi_desc->control);
}
#endif /* _X86_POSTED_INTR_H */
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