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| author | Furquan Shaikh <furquan@google.com> | 2020-04-20 17:59:50 -0700 |
|---|---|---|
| committer | Furquan Shaikh <furquan@google.com> | 2020-04-22 19:14:51 +0000 |
| commit | 1f3055aa36655cce731dcc8f33a21b011cec14eb (patch) | |
| tree | aabdc97bc0cdfc6caf3ccab5f90d94e0bb7b704b /src/include | |
| parent | 38b349cb35738377cf42b71afa9e5d66e1a8eb4b (diff) | |
| download | coreboot-1f3055aa36655cce731dcc8f33a21b011cec14eb.tar.xz | |
device: Add helper function to find matching device on bus
This change adds a helper function dev_find_matching_device_on_bus()
which scans all the child devices on the given bus and calls a
match function provided by the caller. It returns the first device
that the match function returns true for, else NULL if no such device
is found.
Change-Id: I2e3332c0a175ab995c523f078f29a9f498f17931
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40543
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/device/device.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/include/device/device.h b/src/include/device/device.h index a33702a234..4983b486a4 100644 --- a/src/include/device/device.h +++ b/src/include/device/device.h @@ -207,6 +207,19 @@ DEVTREE_CONST struct device *dev_find_path( struct device *dev_find_lapic(unsigned int apic_id); int dev_count_cpu(void); +/* + * Signature for matching function that is used by dev_find_matching_device_on_bus() to decide + * if the device being considered is the one that matches the caller's criteria. This function + * is supposed to return true if the provided device matches the criteria, else false. + */ +typedef bool (*match_device_fn)(DEVTREE_CONST struct device *dev); +/* + * Returns the first device on the bus that the match_device_fn returns true for. If no such + * device is found, it returns NULL. + */ +DEVTREE_CONST struct device *dev_find_matching_device_on_bus(const struct bus *bus, + match_device_fn fn); + struct device *add_cpu_device(struct bus *cpu_bus, unsigned int apic_id, int enabled); void set_cpu_topology(struct device *cpu, unsigned int node, |