From cecc1097ffc0a3c39f6a25301d05e3ee965b16de Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Thu, 28 Jul 2016 10:48:02 +0200 Subject: bsp/qoriq: Fix start stack setup --- c/src/lib/libbsp/powerpc/qoriq/start/start.S | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/c/src/lib/libbsp/powerpc/qoriq/start/start.S b/c/src/lib/libbsp/powerpc/qoriq/start/start.S index 6d6cd9400a..ba82bbc2df 100644 --- a/c/src/lib/libbsp/powerpc/qoriq/start/start.S +++ b/c/src/lib/libbsp/powerpc/qoriq/start/start.S @@ -210,9 +210,13 @@ _start: mtmsr r0 isync - /* Initialize start stack */ - subi r1, START_STACK, PPC_MINIMUM_STACK_FRAME_SIZE - clrrwi r1, r1, PPC_STACK_ALIGN_POWER + /* + * Initialize start stack. Make sure that we do not share a cache line + * with the heap block management, since initial stacks for the + * secondary processors are allocated from the workspace. + */ + subi r1, START_STACK, 2 * PPC_DEFAULT_CACHE_LINE_SIZE + clrrwi r1, r1, PPC_DEFAULT_CACHE_LINE_POWER li r0, 0 stw r0, 0(r1) -- cgit v1.2.3