diff options
| author | Laurent Dufour <ldufour@linux.ibm.com> | 2022-11-10 21:06:18 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-12-07 12:14:49 +0300 |
| commit | e13d23a404f2e6dfaf8b1ef7d161a0836fce4fa5 (patch) | |
| tree | 0d093ffe5eee8a241016486c009de03282c92e04 /arch/powerpc/include | |
| parent | 5ddcc03a07ae1ab5062f89a946d9495f1fd8eaa4 (diff) | |
| download | linux-e13d23a404f2e6dfaf8b1ef7d161a0836fce4fa5.tar.xz | |
powerpc: export the CPU node count
At boot time, the FDT is parsed to compute the number of CPUs.
In addition count the number of CPU nodes and export it.
This is useful when building the FDT for a kexeced kernel since we need to
take in account the CPU node added since the boot time during CPU hotplug
operations.
Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221110180619.15796-2-ldufour@linux.ibm.com
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/prom.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h index 2e82820fbd64..c0107d8ddd8c 100644 --- a/arch/powerpc/include/asm/prom.h +++ b/arch/powerpc/include/asm/prom.h @@ -85,6 +85,7 @@ struct of_drc_info { extern int of_read_drc_info_cell(struct property **prop, const __be32 **curval, struct of_drc_info *data); +extern unsigned int boot_cpu_node_count; /* * There are two methods for telling firmware what our capabilities are. |