| Message ID | 1283007778-11012-2-git-send-email-eduard.munteanu@linux360.ro |
|---|---|
| State | New |
| Headers | show |
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 > > > _______________________________________________ > SeaBIOS mailing list > SeaBIOS@seabios.org > http://www.seabios.org/mailman/listinfo/seabios >
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, \
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(-)