A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 18:51:56 -04:00
Code Issues Projects Releases Packages Wiki Activity

arm64: topology: move store_cpu_topology() to shared code

Browse source 
commit 456797da792fa7cbf6698febf275fe9b36691f78 upstream.

arm64's method of defining a default cpu topology requires only minimal
changes to apply to RISC-V also. The current arm64 implementation exits
early in a uniprocessor configuration by reading MPIDR & claiming that
uniprocessor can rely on the default values.

This is appears to be a hangover from prior to '3102bc0e6ac7 ("arm64:
topology: Stop using MPIDR for topology information")', because the
current code just assigns default values for multiprocessor systems.

With the MPIDR references removed, store_cpu_topolgy() can be moved to
the common arch_topology code.

Reviewed-by: Sudeep Holla <[email protected]>
Acked-by: Catalin Marinas <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
Signed-off-by: Conor Dooley <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Conor Dooley 2022-10-19 13:52:09 +01:00 • committed by Greg Kroah-Hartman
commit 60dd3dc2ac
2 changed files with 19 additions and 40 deletions
Download patch file Download diff file Expand all files Collapse all files

19
drivers/base/arch_topology.c
View file

@ -538,4 +538,23 @@ void __init init_cpu_topology(void)
else if (of_have_populated_dt() && parse_dt_topology())
reset_cpu_topology();
}
void store_cpu_topology(unsigned int cpuid)
{
struct cpu_topology *cpuid_topo = &cpu_topology[cpuid];
if (cpuid_topo->package_id != -1)
goto topology_populated;
cpuid_topo->thread_id = -1;
cpuid_topo->core_id = cpuid;
cpuid_topo->package_id = cpu_to_node(cpuid);
pr_debug("CPU%u: package %d core %d thread %d\n",
cpuid, cpuid_topo->package_id, cpuid_topo->core_id,
cpuid_topo->thread_id);
topology_populated:
update_siblings_masks(cpuid);
}
#endif