| Message ID | 1491360291-30299-1-git-send-email-mpe@ellerman.id.au (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | ebbe9d7d3a2ca0d62f1a2c08c7e7a3e0a88cf999 |
| Headers | show |
Michael Ellerman <mpe@ellerman.id.au> writes: > Of the 64-bit Book3S platforms, only powermac supports booting on an > actual non-SMP system. The other platforms can be built with SMP > disabled, but it doesn't make a lot of sense given the CPUs they support > are all multicore or multithreaded. > > So give platforms the option of forcing SMP=y. For the record I'm planning to merge this. cheers > diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype > index 99b0ae8acb78..5c011e4baf0b 100644 > --- a/arch/powerpc/platforms/Kconfig.cputype > +++ b/arch/powerpc/platforms/Kconfig.cputype > @@ -371,9 +371,15 @@ config PPC_PERF_CTRS > help > This enables the powerpc-specific perf_event back-end. > > +config FORCE_SMP > + # Allow platforms to force SMP=y by selecting this > + bool > + default n > + select SMP > + > config SMP > depends on PPC_BOOK3S || PPC_BOOK3E || FSL_BOOKE || PPC_47x > - bool "Symmetric multi-processing support" > + bool "Symmetric multi-processing support" if !FORCE_SMP > ---help--- > This enables support for systems with more than one CPU. If you have > a system with only one CPU, say N. If you have a system with more > -- > 2.7.4
On Wed, 2017-04-05 at 02:44:49 UTC, Michael Ellerman wrote: > Of the 64-bit Book3S platforms, only powermac supports booting on an > actual non-SMP system. The other platforms can be built with SMP > disabled, but it doesn't make a lot of sense given the CPUs they support > are all multicore or multithreaded. > > So give platforms the option of forcing SMP=y. > > Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Series applied to powerpc next. https://git.kernel.org/powerpc/c/ebbe9d7d3a2ca0d62f1a2c08c7e7a3 cheers
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 99b0ae8acb78..5c011e4baf0b 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -371,9 +371,15 @@ config PPC_PERF_CTRS help This enables the powerpc-specific perf_event back-end. +config FORCE_SMP + # Allow platforms to force SMP=y by selecting this + bool + default n + select SMP + config SMP depends on PPC_BOOK3S || PPC_BOOK3E || FSL_BOOKE || PPC_47x - bool "Symmetric multi-processing support" + bool "Symmetric multi-processing support" if !FORCE_SMP ---help--- This enables support for systems with more than one CPU. If you have a system with only one CPU, say N. If you have a system with more
Of the 64-bit Book3S platforms, only powermac supports booting on an actual non-SMP system. The other platforms can be built with SMP disabled, but it doesn't make a lot of sense given the CPUs they support are all multicore or multithreaded. So give platforms the option of forcing SMP=y. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> --- arch/powerpc/platforms/Kconfig.cputype | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)