From: Benjamin Herrenschmidt Date: Mon, 19 Sep 2011 17:44:51 +0000 (+0000) Subject: powerpc/powernv: Don't clobber r9 in relative_toc() X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=e550592e689cf8d682937f356497f989f3d88292;p=~shefty%2Frdma-dev.git powerpc/powernv: Don't clobber r9 in relative_toc() With OPAL, r8 and r9 will be used to pass the OPAL base and entry for debugging purposes (those informations are also in the device-tree). We don't want to clobber those registers that early. Signed-off-by: Benjamin Herrenschmidt --- diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S index 3564c49c683..e708abe576d 100644 --- a/arch/powerpc/kernel/head_64.S +++ b/arch/powerpc/kernel/head_64.S @@ -674,9 +674,9 @@ _GLOBAL(enable_64b_mode) _GLOBAL(relative_toc) mflr r0 bcl 20,31,$+4 -0: mflr r9 - ld r2,(p_toc - 0b)(r9) - add r2,r2,r9 +0: mflr r11 + ld r2,(p_toc - 0b)(r11) + add r2,r2,r11 mtlr r0 blr