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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-09-23 12:05:03 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-10-11 16:48:49 +1100 |
| commit | be401b372fae219cf04c0c38890834c813d8dc90 (patch) | |
| tree | 0bce5bc7477162b2931317047429ad905614dc23 | |
| parent | 4f89363b1187ca0cc36ee6aebe0bee550f74288d (diff) | |
powerpc/powernv: Fix OPAL entry and exit in little endian mode
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-wrappers.S | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S index 8f3844535fbb..2a03e1e63c7a 100644 --- a/arch/powerpc/platforms/powernv/opal-wrappers.S +++ b/arch/powerpc/platforms/powernv/opal-wrappers.S @@ -34,7 +34,7 @@ mtmsrd r12,1; \ LOAD_REG_ADDR(r0,.opal_return); \ mtlr r0; \ - li r0,MSR_DR|MSR_IR; \ + li r0,MSR_DR|MSR_IR|MSR_LE;\ andc r12,r12,r0; \ li r0,token; \ mtspr SPRN_HSRR1,r12; \ @@ -45,6 +45,13 @@ hrfid _STATIC(opal_return) + /* + * Fixup endian on OPAL return... we should be able to simplify + * this by instead converting the below trampoline to a set of + * bytes (always BE) since MSR:LE will end up fixed up as a side + * effect of the rfid. + */ + FIXUP_ENDIAN ld r2,PACATOC(r13); ld r4,8(r1); ld r5,16(r1); |