Commit b59fb7b6 authored by Wei Liu's avatar Wei Liu
Browse files

asm-generic/hyperv: update hv_interrupt_entry



We will soon use the same structure to handle IO-APIC interrupts as
well. Introduce an enum to identify the source and a data structure for
IO-APIC RTE.

While at it, update pci-hyperv.c to use the enum.

No functional change.

Signed-off-by: default avatarWei Liu <wei.liu@kernel.org>
Acked-by: default avatarRob Herring <robh@kernel.org>
Reviewed-by: default avatarMichael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20210203150435.27941-13-wei.liu@kernel.org
parent d589ae61
......@@ -1216,7 +1216,7 @@ static void hv_irq_unmask(struct irq_data *data)
params = &hbus->retarget_msi_interrupt_params;
memset(params, 0, sizeof(*params));
params->partition_id = HV_PARTITION_ID_SELF;
params->int_entry.source = 1; /* MSI(-X) */
params->int_entry.source = HV_INTERRUPT_SOURCE_MSI;
hv_set_msi_entry_from_desc(&params->int_entry.msi_entry, msi_desc);
params->device_id = (hbus->hdev->dev_instance.b[5] << 24) |
(hbus->hdev->dev_instance.b[4] << 16) |
......
......@@ -481,6 +481,11 @@ struct hv_create_vp {
u64 flags;
} __packed;
enum hv_interrupt_source {
HV_INTERRUPT_SOURCE_MSI = 1, /* MSI and MSI-X */
HV_INTERRUPT_SOURCE_IOAPIC,
};
union hv_msi_address_register {
u32 as_uint32;
struct {
......@@ -514,10 +519,37 @@ union hv_msi_entry {
} __packed;
};
union hv_ioapic_rte {
u64 as_uint64;
struct {
u32 vector:8;
u32 delivery_mode:3;
u32 destination_mode:1;
u32 delivery_status:1;
u32 interrupt_polarity:1;
u32 remote_irr:1;
u32 trigger_mode:1;
u32 interrupt_mask:1;
u32 reserved1:15;
u32 reserved2:24;
u32 destination_id:8;
};
struct {
u32 low_uint32;
u32 high_uint32;
};
} __packed;
struct hv_interrupt_entry {
u32 source; /* 1 for MSI(-X) */
u32 source;
u32 reserved1;
union hv_msi_entry msi_entry;
union {
union hv_msi_entry msi_entry;
union hv_ioapic_rte ioapic_rte;
};
} __packed;
/*
......
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