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/linux/arch/powerpc/kernel/
H A Ddt_cpu_ftrs.cdiff 029ab30b4c0a7ec587eece1ec07c3981fdff2bed Fri Jul 03 07:36:06 CEST 2020 Bharata B Rao <bharata@linux.ibm.com> powerpc/mm: Enable radix GTSE only if supported.

Make GTSE an MMU feature and enable it by default for radix.
However for guest, conditionally enable it if hypervisor supports
it via OV5 vector. Let prom_init ask for radix GTSE only if the
support exists.

Having GTSE as an MMU feature will make it easy to enable radix
without GTSE. Currently radix assumes GTSE is enabled by default.

Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200703053608.12884-2-bharata@linux.ibm.com
H A Dprom_init.cdiff 029ab30b4c0a7ec587eece1ec07c3981fdff2bed Fri Jul 03 07:36:06 CEST 2020 Bharata B Rao <bharata@linux.ibm.com> powerpc/mm: Enable radix GTSE only if supported.

Make GTSE an MMU feature and enable it by default for radix.
However for guest, conditionally enable it if hypervisor supports
it via OV5 vector. Let prom_init ask for radix GTSE only if the
support exists.

Having GTSE as an MMU feature will make it easy to enable radix
without GTSE. Currently radix assumes GTSE is enabled by default.

Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200703053608.12884-2-bharata@linux.ibm.com
/linux/arch/powerpc/include/asm/
H A Dmmu.hdiff 029ab30b4c0a7ec587eece1ec07c3981fdff2bed Fri Jul 03 07:36:06 CEST 2020 Bharata B Rao <bharata@linux.ibm.com> powerpc/mm: Enable radix GTSE only if supported.

Make GTSE an MMU feature and enable it by default for radix.
However for guest, conditionally enable it if hypervisor supports
it via OV5 vector. Let prom_init ask for radix GTSE only if the
support exists.

Having GTSE as an MMU feature will make it easy to enable radix
without GTSE. Currently radix assumes GTSE is enabled by default.

Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200703053608.12884-2-bharata@linux.ibm.com
/linux/arch/powerpc/mm/
H A Dinit_64.cdiff 029ab30b4c0a7ec587eece1ec07c3981fdff2bed Fri Jul 03 07:36:06 CEST 2020 Bharata B Rao <bharata@linux.ibm.com> powerpc/mm: Enable radix GTSE only if supported.

Make GTSE an MMU feature and enable it by default for radix.
However for guest, conditionally enable it if hypervisor supports
it via OV5 vector. Let prom_init ask for radix GTSE only if the
support exists.

Having GTSE as an MMU feature will make it easy to enable radix
without GTSE. Currently radix assumes GTSE is enabled by default.

Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200703053608.12884-2-bharata@linux.ibm.com