Commit-ID: e38e2af1c57c3eb5211331a5b4fcaae0c4a2a918 Gitweb: http://git.kernel.org/tip/e38e2af1c57c3eb5211331a5b4fcaae0c4a2a918 Author: Cliff Wickman <cpw@xxxxxxx> AuthorDate: Thu, 19 Nov 2009 17:12:43 -0600 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Mon, 23 Nov 2009 19:12:50 +0100 x86: SGI UV: Fix BAU initialization A memory mapped register that affects the SGI UV Broadcast Assist Unit's interrupt handling may sometimes be unintialized. Remove the condition on its initialization, as that condition can be randomly satisfied by a hardware reset. Signed-off-by: Cliff Wickman <cpw@xxxxxxx> Cc: <stable@xxxxxxxxxx> LKML-Reference: <E1NBGB9-0005nU-Dp@xxxxxxxxxxxxxxxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- arch/x86/kernel/tlb_uv.c | 4 +--- 1 files changed, 1 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c index 503c1f2..af21e55 100644 --- a/arch/x86/kernel/tlb_uv.c +++ b/arch/x86/kernel/tlb_uv.c @@ -819,10 +819,8 @@ static int __init uv_init_blade(int blade) */ apicid = blade_to_first_apicid(blade); pa = uv_read_global_mmr64(pnode, UVH_BAU_DATA_CONFIG); - if ((pa & 0xff) != UV_BAU_MESSAGE) { - uv_write_global_mmr64(pnode, UVH_BAU_DATA_CONFIG, + uv_write_global_mmr64(pnode, UVH_BAU_DATA_CONFIG, ((apicid << 32) | UV_BAU_MESSAGE)); - } return 0; } -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html