2 * MSI hooks for standard x86 apic
12 * Shifts for APIC-based data
15 #define MSI_DATA_VECTOR_SHIFT 0
16 #define MSI_DATA_VECTOR(v) (((u8)v) << MSI_DATA_VECTOR_SHIFT)
18 #define MSI_DATA_DELIVERY_SHIFT 8
19 #define MSI_DATA_DELIVERY_FIXED (0 << MSI_DATA_DELIVERY_SHIFT)
20 #define MSI_DATA_DELIVERY_LOWPRI (1 << MSI_DATA_DELIVERY_SHIFT)
22 #define MSI_DATA_LEVEL_SHIFT 14
23 #define MSI_DATA_LEVEL_DEASSERT (0 << MSI_DATA_LEVEL_SHIFT)
24 #define MSI_DATA_LEVEL_ASSERT (1 << MSI_DATA_LEVEL_SHIFT)
26 #define MSI_DATA_TRIGGER_SHIFT 15
27 #define MSI_DATA_TRIGGER_EDGE (0 << MSI_DATA_TRIGGER_SHIFT)
28 #define MSI_DATA_TRIGGER_LEVEL (1 << MSI_DATA_TRIGGER_SHIFT)
31 * Shift/mask fields for APIC-based bus address
34 #define MSI_ADDR_HEADER 0xfee00000
36 #define MSI_ADDR_DESTID_MASK 0xfff0000f
37 #define MSI_ADDR_DESTID_CPU(cpu) ((cpu) << MSI_TARGET_CPU_SHIFT)
39 #define MSI_ADDR_DESTMODE_SHIFT 2
40 #define MSI_ADDR_DESTMODE_PHYS (0 << MSI_ADDR_DESTMODE_SHIFT)
41 #define MSI_ADDR_DESTMODE_LOGIC (1 << MSI_ADDR_DESTMODE_SHIFT)
43 #define MSI_ADDR_REDIRECTION_SHIFT 3
44 #define MSI_ADDR_REDIRECTION_CPU (0 << MSI_ADDR_REDIRECTION_SHIFT)
45 #define MSI_ADDR_REDIRECTION_LOWPRI (1 << MSI_ADDR_REDIRECTION_SHIFT)
49 msi_target_apic(unsigned int vector,
50 unsigned int dest_cpu,
51 u32 *address_hi, /* in/out */
52 u32 *address_lo) /* in/out */
54 u32 addr = *address_lo;
56 addr &= MSI_ADDR_DESTID_MASK;
57 addr |= MSI_ADDR_DESTID_CPU(cpu_physical_id(dest_cpu));
63 msi_setup_apic(struct pci_dev *pdev, /* unused in generic */
69 unsigned long dest_phys_id;
71 dest_phys_id = cpu_physical_id(first_cpu(cpu_online_map));
74 *address_lo = MSI_ADDR_HEADER |
75 MSI_ADDR_DESTMODE_PHYS |
76 MSI_ADDR_REDIRECTION_CPU |
77 MSI_ADDR_DESTID_CPU(dest_phys_id);
79 *data = MSI_DATA_TRIGGER_EDGE |
80 MSI_DATA_LEVEL_ASSERT |
81 MSI_DATA_DELIVERY_FIXED |
82 MSI_DATA_VECTOR(vector);
88 msi_teardown_apic(unsigned int vector)
94 * Generic ops used on most IA archs/platforms. Set with msi_register()
97 struct msi_ops msi_apic_ops = {
98 .setup = msi_setup_apic,
99 .teardown = msi_teardown_apic,
100 .target = msi_target_apic,