diff options
Diffstat (limited to 'src/soc/intel/common/block/include/intelblocks/pcie_rp.h')
| -rw-r--r-- | src/soc/intel/common/block/include/intelblocks/pcie_rp.h | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/src/soc/intel/common/block/include/intelblocks/pcie_rp.h b/src/soc/intel/common/block/include/intelblocks/pcie_rp.h index 264c43f585..578a600e5b 100644 --- a/src/soc/intel/common/block/include/intelblocks/pcie_rp.h +++ b/src/soc/intel/common/block/include/intelblocks/pcie_rp.h @@ -10,15 +10,27 @@ * functions. * * `slot` is the PCI device/slot number of such a group. - * `count` is the number of functions within the group. It is assumed that - * the first group includes the RPs 1 to the first group's `count` and that - * adjacent groups follow without gaps in the numbering. + * `start` is the initial PCI function number within the group. This is useful in case the + * root port numbers are not contiguous within the slot. + * `count` is the number of functions within the group starting with the `start` function + * number. */ struct pcie_rp_group { unsigned int slot; + unsigned int start; unsigned int count; }; +static inline unsigned int rp_start_fn(const struct pcie_rp_group *group) +{ + return group->start; +} + +static inline unsigned int rp_end_fn(const struct pcie_rp_group *group) +{ + return group->start + group->count - 1; +} + /* * Update PCI paths of the root ports in the devicetree. * @@ -32,7 +44,9 @@ struct pcie_rp_group { * Call this once, after root ports have been reordered, but before PCI * enumeration. * - * `groups` points to a list of groups terminated by an entry with `count == 0`. + * `groups` points to a list of groups terminated by an entry with `count == 0`. It is assumed + * that the first group includes the RPs 1 to the first group's `count` and that adjacent groups + * follow without gaps in the numbering. */ void pcie_rp_update_devicetree(const struct pcie_rp_group *groups); |