On Fri, Aug 19, 2022 at 6:18 PM Randy Dunlap <[email protected]> wrote: > > Fix build error when CONFIG_DRM_AMDGPU=m: > > ERROR: modpost: "cpu_smallcore_map" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] > undefined! > > by exporting 'cpu_smallcore_map' just as other per_cpu > symbols are exported. > > drivers/gpu/drm/amd/amdkfd/kfd_device.c calls cpu_smt_mask(). > This is an inline function on powerpc which references > cpu_smallcore_map. > > Fixes: 425752c63b6f ("powerpc: Detect the presence of big-cores via "ibm, > thread-groups"") > Fixes: 7bc913085765 ("drm/amdkfd: Try to schedule bottom half on same core") > Signed-off-by: Randy Dunlap <[email protected]> > Cc: Gautham R. Shenoy <[email protected]> > Cc: Michael Ellerman <[email protected]> > Cc: Nicholas Piggin <[email protected]> > Cc: Christophe Leroy <[email protected]> > Cc: [email protected] > Cc: [email protected] > Cc: Felix Kuehling <[email protected]> > Cc: Alex Deucher <[email protected]> > Cc: Christian König <[email protected]> > Cc: "Pan, Xinhui" <[email protected]>
Acked-by: Alex Deucher <[email protected]> > --- > arch/powerpc/kernel/smp.c | 1 + > 1 file changed, 1 insertion(+) > > --- a/arch/powerpc/kernel/smp.c > +++ b/arch/powerpc/kernel/smp.c > @@ -86,6 +86,7 @@ DEFINE_PER_CPU(cpumask_var_t, cpu_core_m > static DEFINE_PER_CPU(cpumask_var_t, cpu_coregroup_map); > > EXPORT_PER_CPU_SYMBOL(cpu_sibling_map); > +EXPORT_PER_CPU_SYMBOL(cpu_smallcore_map); > EXPORT_PER_CPU_SYMBOL(cpu_l2_cache_map); > EXPORT_PER_CPU_SYMBOL(cpu_core_map); > EXPORT_SYMBOL_GPL(has_big_cores);
