| Message ID | 20230414061622.2930995-4-yoshihiro.shimoda.uh@renesas.com |
|---|---|
| State | New |
| Headers | show |
| Series | PCI: rcar-gen4: Add R-Car Gen4 PCIe support | expand |
Hi Bjorn, > From: Bjorn Helgaas, Sent: Saturday, April 15, 2023 3:58 AM > > On Fri, Apr 14, 2023 at 03:16:06PM +0900, Yoshihiro Shimoda wrote: > > Add PCI_HEADER_TYPE_MULTI_FUNC macro which is "Multi-Function Device" > > of Header Type Register. > > > > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> > > --- > > include/uapi/linux/pci_regs.h | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h > > index 5d48413ac28f..a302b67d2834 100644 > > --- a/include/uapi/linux/pci_regs.h > > +++ b/include/uapi/linux/pci_regs.h > > @@ -80,6 +80,7 @@ > > #define PCI_HEADER_TYPE_NORMAL 0 > > #define PCI_HEADER_TYPE_BRIDGE 1 > > #define PCI_HEADER_TYPE_CARDBUS 2 > > +#define PCI_HEADER_TYPE_MULTI_FUNC 0x80 > > We test this a few places already; if we add this new macro, shouldn't > we update those places to use it? Thank you for your comment! We should updated drivers/pci/{probe,quirks}.c like the following code for example: dev->multifunction = !!(hdr_type & 0x80); I'll update them on v13. Best regards, Yoshihiro Shimoda > > #define PCI_BIST 0x0f /* 8 bits */ > > #define PCI_BIST_CODE_MASK 0x0f /* Return result */ > > -- > > 2.25.1 > >
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h index 5d48413ac28f..a302b67d2834 100644 --- a/include/uapi/linux/pci_regs.h +++ b/include/uapi/linux/pci_regs.h @@ -80,6 +80,7 @@ #define PCI_HEADER_TYPE_NORMAL 0 #define PCI_HEADER_TYPE_BRIDGE 1 #define PCI_HEADER_TYPE_CARDBUS 2 +#define PCI_HEADER_TYPE_MULTI_FUNC 0x80 #define PCI_BIST 0x0f /* 8 bits */ #define PCI_BIST_CODE_MASK 0x0f /* Return result */
Add PCI_HEADER_TYPE_MULTI_FUNC macro which is "Multi-Function Device" of Header Type Register. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> --- include/uapi/linux/pci_regs.h | 1 + 1 file changed, 1 insertion(+)