diff options
| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-11-29 14:07:24 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-12-04 19:45:01 +1100 |
| commit | 74fabcadfd434065d0088f424905599298c5b2d2 (patch) | |
| tree | 68ac66bd2e40d617d22755426574ccb9b087254b /arch/powerpc/lib/code-patching.c | |
| parent | 55c8fc3f4930286580af98711a481f35fa564e42 (diff) | |
powerpc/8xx: don't use r12/SPRN_SPRG_SCRATCH2 in TLB Miss handlers
This patch reworks the TLB Miss handler in order to not use r12
register, hence avoiding having to save it into SPRN_SPRG_SCRATCH2.
In the DAR Fixup code we can now use SPRN_M_TW, freeing
SPRN_SPRG_SCRATCH2.
Then SPRN_SPRG_SCRATCH2 may be used for something else in the future.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/lib/code-patching.c')
0 files changed, 0 insertions, 0 deletions