diff options
| author |   Bjorn Helgaas <bhelgaas@google.com> | 2012-12-05 13:51:17 -0700 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2012-12-05 13:51:17 -0700 |
| commit | 7793eeabc89fd342b96fdadce5a50c46ab77f3f9 (patch) | |
| tree | a4b3e65fcb4dda9043bf70ced68e961b3f2500b1 /include/uapi | |
| parent | Linux 3.7-rc3 (diff) | |
| download | linux-dev-7793eeabc89fd342b96fdadce5a50c46ab77f3f9.tar.xz linux-dev-7793eeabc89fd342b96fdadce5a50c46ab77f3f9.zip | |
PCI: Add and use standard PCI-X Capability register names
Add and use #defines for PCI-X Capability registers and fields.
Note that the PCI-X Capability has a different layout for
type 0 (endpoint) and type 1 (bridge) devices.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/pci_regs.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h index 20ae747ddf34..4cca834f9abd 100644 --- a/include/uapi/linux/pci_regs.h +++ b/include/uapi/linux/pci_regs.h @@ -349,7 +349,7 @@ #define PCI_AF_STATUS_TP 0x01 #define PCI_CAP_AF_SIZEOF 6 /* size of AF registers */ -/* PCI-X registers */ +/* PCI-X registers (Type 0 (non-bridge) devices) */ #define PCI_X_CMD 2 /* Modes & Features */ #define PCI_X_CMD_DPERR_E 0x0001 /* Data Parity Error Recovery Enable */ @@ -389,6 +389,19 @@ #define PCI_CAP_PCIX_SIZEOF_V1 24 /* size for Version 1 */ #define PCI_CAP_PCIX_SIZEOF_V2 PCI_CAP_PCIX_SIZEOF_V1 /* Same for v2 */ +/* PCI-X registers (Type 1 (bridge) devices) */ + +#define PCI_X_BRIDGE_SSTATUS 2 /* Secondary Status */ +#define PCI_X_SSTATUS_64BIT 0x0001 /* Secondary AD interface is 64 bits */ +#define PCI_X_SSTATUS_133MHZ 0x0002 /* 133 MHz capable */ +#define PCI_X_SSTATUS_FREQ 0x03c0 /* Secondary Bus Mode and Frequency */ +#define PCI_X_SSTATUS_VERS 0x3000 /* PCI-X Capability Version */ +#define PCI_X_SSTATUS_V1 0x1000 /* Mode 2, not Mode 1 */ +#define PCI_X_SSTATUS_V2 0x2000 /* Mode 1 or Modes 1 and 2 */ +#define PCI_X_SSTATUS_266MHZ 0x4000 /* 266 MHz capable */ +#define PCI_X_SSTATUS_533MHZ 0x8000 /* 533 MHz capable */ +#define PCI_X_BRIDGE_STATUS 4 /* Bridge Status */ + /* PCI Bridge Subsystem ID registers */ #define PCI_SSVID_VENDOR_ID 4 /* PCI-Bridge subsystem vendor id register */ |