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(parent: 0df977e) | patch
powerpc/6xx: Store PGDIR physical address in a SPRG
authorChristophe Leroy <christophe.leroy@c-s.fr>
Thu, 21 Feb 2019 10:37:55 +0000 (10:37 +0000)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 21 Feb 2019 13:10:16 +0000 (00:10 +1100)
commit93c4a162b014d238a287f8264adb25c009c79e61
tree22a11a62f16f26c387315108f5b6ff2892f9e14ftree | snapshot
parent0df977eafc792a5365a7f81d8d5920132e03afadcommit | diff
powerpc/6xx: Store PGDIR physical address in a SPRG

Use SPRN_SPRG2 to store the current thread PGDIR and
avoid reading thread_struct.pgdir at every TLB miss.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/include/asm/reg.h diff | blob | blame | history
arch/powerpc/kernel/cpu_setup_6xx.S diff | blob | blame | history
arch/powerpc/kernel/head_32.S diff | blob | blame | history
arch/powerpc/mm/hash_low_32.S diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)