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iommu/amd: Move and introduce new IRTE-related unions and structures

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Move existing unions and structs for accessing/managing IRTE to a proper
header file. This is mainly to simplify variable declarations in subsequent
patches.

Besides, this patch also introduces new struct irte_ga for the new
128-bit IRTE format.

Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Suravee Suthikulpanit 2016-08-23 13:52:33 -05:00 committed by Joerg Roedel
parent 3928aa3f57
commit a38180bd36
2 changed files with 76 additions and 28 deletions
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28
drivers/iommu/amd_iommu.c
View File

@ -3511,34 +3511,6 @@ EXPORT_SYMBOL(amd_iommu_device_info);
*
*****************************************************************************/
union irte {
u32 val;
struct {
u32 valid : 1,
no_fault : 1,
int_type : 3,
rq_eoi : 1,
dm : 1,
rsvd_1 : 1,
destination : 8,
vector : 8,
rsvd_2 : 8;
} fields;
};
struct irq_2_irte {
u16 devid; /* Device ID for IRTE table */
u16 index; /* Index into IRTE table*/
};
struct amd_ir_data {
struct irq_2_irte irq_2_irte;
union irte irte_entry;
union {
struct msi_msg msi_entry;
};
};
static struct irq_chip amd_ir_chip;
#define DTE_IRQ_PHYS_ADDR_MASK (((1ULL << 45)-1) << 6)

76
drivers/iommu/amd_iommu_types.h
View File

@ -22,6 +22,7 @@
#include <linux/types.h>
#include <linux/mutex.h>
#include <linux/msi.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/pci.h>
@ -705,4 +706,79 @@ enum amd_iommu_intr_mode_type {
x == AMD_IOMMU_GUEST_IR_LEGACY_GA)
#define AMD_IOMMU_GUEST_IR_VAPIC(x) (x == AMD_IOMMU_GUEST_IR_VAPIC)
union irte {
u32 val;
struct {
u32 valid : 1,
no_fault : 1,
int_type : 3,
rq_eoi : 1,
dm : 1,
rsvd_1 : 1,
destination : 8,
vector : 8,
rsvd_2 : 8;
} fields;
};
union irte_ga_lo {
u64 val;
/* For int remapping */
struct {
u64 valid : 1,
no_fault : 1,
/* ------ */
int_type : 3,
rq_eoi : 1,
dm : 1,
/* ------ */
guest_mode : 1,
destination : 8,
rsvd : 48;
} fields_remap;
/* For guest vAPIC */
struct {
u64 valid : 1,
no_fault : 1,
/* ------ */
ga_log_intr : 1,
rsvd1 : 3,
is_run : 1,
/* ------ */
guest_mode : 1,
destination : 8,
rsvd2 : 16,
ga_tag : 32;
} fields_vapic;
};
union irte_ga_hi {
u64 val;
struct {
u64 vector : 8,
rsvd_1 : 4,
ga_root_ptr : 40,
rsvd_2 : 12;
} fields;
};
struct irte_ga {
union irte_ga_lo lo;
union irte_ga_hi hi;
};
struct irq_2_irte {
u16 devid; /* Device ID for IRTE table */
u16 index; /* Index into IRTE table*/
};
struct amd_ir_data {
struct irq_2_irte irq_2_irte;
union irte irte_entry;
struct msi_msg msi_entry;
};
#endif /* _ASM_X86_AMD_IOMMU_TYPES_H */