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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-01-12 13:45:21 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-01-16 23:47:12 +1100 |
| commit | bb9b5a8332533ac7935ca6edfc7ebf15a5366f11 (patch) | |
| tree | 1a70ae96ce4ebf68c00ba41e6a6dc3212c95df79 /arch/powerpc/perf | |
| parent | 2a45addd21de25f41c8f21a6f08f0980e583d596 (diff) | |
| download | linux-bb9b5a8332533ac7935ca6edfc7ebf15a5366f11.tar.bz2 | |
powerpc/8xx: remove EXCEPTION_PROLOG/EPILOG_0 and change r3 to r12
EXCEPTION_PROLOG_0 and EXCEPTION_EPILOG_0 were added some
time ago in order to regroup the two mtspr/mfspr to SCRATCH0 and
SCRATCH1 and the mfcr/mtcr in order to ease entry and exit of
function not using the full EXCEPTION_PROLOG.
Since then, the mfcr/mtcr has been taken out, hence just leaving
the two mtspr/mfspr in the macro.
In order to improve readability of the exception functions, we
remove those two macros and copy back the two mtspr/mfspr instead.
As r10 and r11 are used for SCRATCH0 and SCRATCH1, lets also use
r12 for SCRATCH2. It will also improve the readability/maintenance.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/perf')
0 files changed, 0 insertions, 0 deletions