2 * Copyright (C) 2003-2004 Intel
3 * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
11 extern int vector_irq[NR_VECTORS];
12 extern void (*interrupt[NR_IRQS])(void);
15 * MSI-X Address Register
17 #define PCI_MSIX_FLAGS_QSIZE 0x7FF
18 #define PCI_MSIX_FLAGS_ENABLE (1 << 15)
19 #define PCI_MSIX_FLAGS_BIRMASK (7 << 0)
20 #define PCI_MSIX_FLAGS_BITMASK (1 << 0)
22 #define PCI_MSIX_ENTRY_SIZE 16
23 #define PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET 0
24 #define PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET 4
25 #define PCI_MSIX_ENTRY_DATA_OFFSET 8
26 #define PCI_MSIX_ENTRY_VECTOR_CTRL_OFFSET 12
28 #define msi_control_reg(base) (base + PCI_MSI_FLAGS)
29 #define msi_lower_address_reg(base) (base + PCI_MSI_ADDRESS_LO)
30 #define msi_upper_address_reg(base) (base + PCI_MSI_ADDRESS_HI)
31 #define msi_data_reg(base, is64bit) \
32 ( (is64bit == 1) ? base+PCI_MSI_DATA_64 : base+PCI_MSI_DATA_32 )
33 #define msi_mask_bits_reg(base, is64bit) \
34 ( (is64bit == 1) ? base+PCI_MSI_MASK_BIT : base+PCI_MSI_MASK_BIT-4)
35 #define msi_disable(control) control &= ~PCI_MSI_FLAGS_ENABLE
36 #define multi_msi_capable(control) \
37 (1 << ((control & PCI_MSI_FLAGS_QMASK) >> 1))
38 #define multi_msi_enable(control, num) \
39 control |= (((num >> 1) << 4) & PCI_MSI_FLAGS_QSIZE);
40 #define is_64bit_address(control) (!!(control & PCI_MSI_FLAGS_64BIT))
41 #define is_mask_bit_support(control) (!!(control & PCI_MSI_FLAGS_MASKBIT))
42 #define msi_enable(control, num) multi_msi_enable(control, num); \
43 control |= PCI_MSI_FLAGS_ENABLE
45 #define msix_table_offset_reg(base) (base + 0x04)
46 #define msix_pba_offset_reg(base) (base + 0x08)
47 #define msix_enable(control) control |= PCI_MSIX_FLAGS_ENABLE
48 #define msix_disable(control) control &= ~PCI_MSIX_FLAGS_ENABLE
49 #define msix_table_size(control) ((control & PCI_MSIX_FLAGS_QSIZE)+1)
50 #define multi_msix_capable msix_table_size
51 #define msix_unmask(address) (address & ~PCI_MSIX_FLAGS_BITMASK)
52 #define msix_mask(address) (address | PCI_MSIX_FLAGS_BITMASK)
53 #define msix_is_pending(address) (address & PCI_MSIX_FLAGS_PENDMASK)
57 __u8 type : 5; /* {0: unused, 5h:MSI, 11h:MSI-X} */
58 __u8 maskbit : 1; /* mask-pending bit supported ? */
59 __u8 state : 1; /* {0: free, 1: busy} */
60 __u8 is_64 : 1; /* Address size: 0=32bit 1=64bit */
61 __u8 entry_nr; /* specific enabled entry */
62 __u8 default_vector; /* default pre-assigned vector */
63 __u8 pos; /* Location of the msi capability */
71 void __iomem *mask_base;
75 /* PM save area for MSIX address/data */
76 struct msi_msg msg_save;