Given the usage of 3/4, u32 pci_find_capability(bdf, cap) would be more direct. Maybe this is a matter of taste, though.
On Sat, Aug 28, 2010 at 06:02:56PM +0300, Eduard - Gabriel Munteanu wrote:
This iterates over capabilities exposed by PCI devices. It's needed by IOMMU initialization code to discover the Secure Device capability.
Signed-off-by: Eduard - Gabriel Munteanu eduard.munteanu@linux360.ro
src/pci.h | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/src/pci.h b/src/pci.h index 9c3108c..60e0359 100644 --- a/src/pci.h +++ b/src/pci.h @@ -2,6 +2,7 @@ #define __PCI_H
#include "types.h" // u32 +#include "pci_regs.h" // PCI_CAPABILITY_LIST et al.
static inline u8 pci_bdf_to_bus(u16 bdf) { return bdf >> 8; @@ -52,6 +53,10 @@ int pci_next(int bdf, int *pmax); for (MAX=0x0100, BDF=pci_next(0, &MAX) \ ; BDF >= 0 \ ; BDF=pci_next(BDF+1, &MAX)) +#define foreachcap(BDF, PTR, CAP) \
- for (PTR = PCI_CAPABILITY_LIST, CAP = pci_config_readb(BDF, PTR); \
CAP; \PTR = CAP + PCI_CAP_LIST_NEXT, CAP = pci_config_readb(BDF, PTR))#define foreachpci_in_bus(BDF, MAX, BUS) \ for (MAX = pci_bus_devfn_to_bdf(BUS, 0) + 0x0100, \ -- 1.7.1
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