diff options
| author |   Frederic Barrat <fbarrat@linux.ibm.com> | 2019-11-21 14:49:12 +0100 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2020-01-23 21:31:17 +1100 |
| commit | bbb789046084d18fff1a32a7bcdeca36dfa0ac14 (patch) | |
| tree | ca248ba599c330242f637700c7a2a74d601fd374 /arch/powerpc/include/asm/pnv-pci.h | |
| parent | powerpc/powernv/ioda: Release opencapi device (diff) | |
| download | linux-dev-bbb789046084d18fff1a32a7bcdeca36dfa0ac14.tar.xz linux-dev-bbb789046084d18fff1a32a7bcdeca36dfa0ac14.zip | |
powerpc/powernv/ioda: Find opencapi slot for a device node
Unlike real PCI slots, opencapi slots are directly associated to
the (virtual) opencapi PHB, there's no intermediate bridge. So when
looking for a slot ID, we must start the search from the device node
itself and not its parent.
Also, the slot ID is not attached to a specific bdfn, so let's build
it from the PHB ID, like skiboot.
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191121134918.7155-6-fbarrat@linux.ibm.com
Diffstat (limited to 'arch/powerpc/include/asm/pnv-pci.h')
| -rw-r--r-- | arch/powerpc/include/asm/pnv-pci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pnv-pci.h b/arch/powerpc/include/asm/pnv-pci.h index edcb1fc50aeb..d0ee0ede5767 100644 --- a/arch/powerpc/include/asm/pnv-pci.h +++ b/arch/powerpc/include/asm/pnv-pci.h @@ -15,6 +15,7 @@ #define PCI_SLOT_ID_PREFIX (1UL << 63) #define PCI_SLOT_ID(phb_id, bdfn) \ (PCI_SLOT_ID_PREFIX | ((uint64_t)(bdfn) << 16) | (phb_id)) +#define PCI_PHB_SLOT_ID(phb_id) (phb_id) extern int pnv_pci_get_slot_id(struct device_node *np, uint64_t *id); extern int pnv_pci_get_device_tree(uint32_t phandle, void *buf, uint64_t len); |