/* 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 */