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PCI: Add Enhanced Allocation register entries

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Add registers defined in PCI-SIG's Enhanced allocation ECN.

[bhelgaas: s/WRITEABLE/WRITABLE]
Signed-off-by: Sean O. Stalley <sean.stalley@intel.com>
[david.daney@cavium.com: Added more definitions for PCI_EA_BEI_*]
Signed-off-by: Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Sean O. Stalley 2015-10-29 17:35:39 -05:00 committed by Bjorn Helgaas
parent d04d0111c7
commit f80b0ba959
1 changed files with 42 additions and 1 deletions
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43
include/uapi/linux/pci_regs.h
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@ -216,7 +216,8 @@
#define PCI_CAP_ID_MSIX 0x11 /* MSI-X */
#define PCI_CAP_ID_SATA 0x12 /* SATA Data/Index Conf. */
#define PCI_CAP_ID_AF 0x13 /* PCI Advanced Features */
#define PCI_CAP_ID_MAX PCI_CAP_ID_AF
#define PCI_CAP_ID_EA 0x14 /* PCI Enhanced Allocation */
#define PCI_CAP_ID_MAX PCI_CAP_ID_EA
#define PCI_CAP_LIST_NEXT 1 /* Next capability in the list */
#define PCI_CAP_FLAGS 2 /* Capability defined flags (16 bits) */
#define PCI_CAP_SIZEOF 4
@ -353,6 +354,46 @@
#define PCI_AF_STATUS_TP 0x01
#define PCI_CAP_AF_SIZEOF 6 /* size of AF registers */
/* PCI Enhanced Allocation registers */
#define PCI_EA_NUM_ENT 2 /* Number of Capability Entries */
#define PCI_EA_NUM_ENT_MASK 0x3f /* Num Entries Mask */
#define PCI_EA_FIRST_ENT 4 /* First EA Entry in List */
#define PCI_EA_FIRST_ENT_BRIDGE 8 /* First EA Entry for Bridges */
#define PCI_EA_ES 0x00000007 /* Entry Size */
#define PCI_EA_BEI(x) (((x) >> 4) & 0xf) /* BAR Equivalent Indicator */
/* 0-5 map to BARs 0-5 respectively */
#define PCI_EA_BEI_BAR0 0
#define PCI_EA_BEI_BAR5 5
#define PCI_EA_BEI_BRIDGE 6 /* Resource behind bridge */
#define PCI_EA_BEI_ENI 7 /* Equivalent Not Indicated */
#define PCI_EA_BEI_ROM 8 /* Expansion ROM */
/* 9-14 map to VF BARs 0-5 respectively */
#define PCI_EA_BEI_VF_BAR0 9
#define PCI_EA_BEI_VF_BAR5 14
#define PCI_EA_BEI_RESERVED 15 /* Reserved - Treat like ENI */
#define PCI_EA_PP(x) (((x) >> 8) & 0xff) /* Primary Properties */
#define PCI_EA_SP(x) (((x) >> 16) & 0xff) /* Secondary Properties */
#define PCI_EA_P_MEM 0x00 /* Non-Prefetch Memory */
#define PCI_EA_P_MEM_PREFETCH 0x01 /* Prefetchable Memory */
#define PCI_EA_P_IO 0x02 /* I/O Space */
#define PCI_EA_P_VF_MEM_PREFETCH 0x03 /* VF Prefetchable Memory */
#define PCI_EA_P_VF_MEM 0x04 /* VF Non-Prefetch Memory */
#define PCI_EA_P_BRIDGE_MEM 0x05 /* Bridge Non-Prefetch Memory */
#define PCI_EA_P_BRIDGE_MEM_PREFETCH 0x06 /* Bridge Prefetchable Memory */
#define PCI_EA_P_BRIDGE_IO 0x07 /* Bridge I/O Space */
/* 0x08-0xfc reserved */
#define PCI_EA_P_MEM_RESERVED 0xfd /* Reserved Memory */
#define PCI_EA_P_IO_RESERVED 0xfe /* Reserved I/O Space */
#define PCI_EA_P_UNAVAILABLE 0xff /* Entry Unavailable */
#define PCI_EA_WRITABLE 0x40000000 /* Writable: 1 = RW, 0 = HwInit */
#define PCI_EA_ENABLE 0x80000000 /* Enable for this entry */
#define PCI_EA_BASE 4 /* Base Address Offset */
#define PCI_EA_MAX_OFFSET 8 /* MaxOffset (resource length) */
/* bit 0 is reserved */
#define PCI_EA_IS_64 0x00000002 /* 64-bit field flag */
#define PCI_EA_FIELD_MASK 0xfffffffc /* For Base & Max Offset */
/* PCI-X registers (Type 0 (non-bridge) devices) */
#define PCI_X_CMD 2 /* Modes & Features */