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(parent: 47fee31) | patch
powerpc/pseries: lift RTAS limit for radix
authorNicholas Piggin <npiggin@gmail.com>
Fri, 22 Dec 2017 11:17:11 +0000 (21:17 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Wed, 17 Jan 2018 13:44:42 +0000 (00:44 +1100)
commit5eae82cab5d7e13292d53205c0cc145c110c92be
treee94a5f933fca3ff28e2dfc60ad6406c0990f7e57tree | snapshot
parent47fee31dbdbd642d444c67a4df814339f6d8dd61commit | diff
powerpc/pseries: lift RTAS limit for radix

With the previous patch to switch to 64-bit mode after returning from
RTAS and before doing any memory accesses, the RMA limit need not be
clamped to 1GB to avoid RTAS bugs.

Keep the 1GB limit for older firmware (although this is more of a kernel
concern than RTAS), and remove it starting with POWER9.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/mm/pgtable-radix.c diff | blob | history