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PCI: Make Enhanced Allocation bitmasks more obvious

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Expand bitmask #defines completely.  This puts the shift in the code
instead of in the #define, but it makes it more obvious in the header file
how fields in the register are laid out.

No functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bjorn Helgaas 2015-10-29 17:35:40 -05:00
parent 111839917f
commit 26635112d4
2 changed files with 11 additions and 10 deletions
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6
include/uapi/linux/pci_regs.h
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@ -361,7 +361,7 @@
#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 */
#define PCI_EA_BEI 0x000000f0 /* BAR Equivalent Indicator */
/* 0-5 map to BARs 0-5 respectively */
#define PCI_EA_BEI_BAR0 0
#define PCI_EA_BEI_BAR5 5
@ -372,8 +372,8 @@
#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_PP 0x0000ff00 /* Primary Properties */
#define PCI_EA_SP 0x00ff0000 /* 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 */