From 6ed0dc5ba811ce682f48988bf114669265e1120d Mon Sep 17 00:00:00 2001 From: Alex Chiang Date: Wed, 27 Feb 2008 18:41:38 -0700 Subject: [IA64] workaround tiger ia64_sal_get_physical_id_info hang This fixes regression introduced in 113134fcbca83619be4c68d0ca66db6093777b5d Intel Tiger platforms hang when calling SAL_GET_PHYSICAL_ID_INFO instead of properly returning -1 for unimplemented, so add a version check. SGI Altix platforms have an incorrect SAL version hard-coded into their prom -- they encode 2.9, but actually implement 3.2 -- so fix it up and allow ia64_sal_get_physical_id_info to keep working. Signed-off-by: Alex Chiang Acked-by: Russ Anderson Signed-off-by: Tony Luck --- arch/ia64/kernel/sal.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch') diff --git a/arch/ia64/kernel/sal.c b/arch/ia64/kernel/sal.c index f44fe841216..a3022dc48ef 100644 --- a/arch/ia64/kernel/sal.c +++ b/arch/ia64/kernel/sal.c @@ -109,6 +109,13 @@ check_versions (struct ia64_sal_systab *systab) sal_revision = SAL_VERSION_CODE(2, 8); sal_version = SAL_VERSION_CODE(0, 0); } + + if (ia64_platform_is("sn2") && (sal_revision == SAL_VERSION_CODE(2, 9))) + /* + * SGI Altix has hard-coded version 2.9 in their prom + * but they actually implement 3.2, so let's fix it here. + */ + sal_revision = SAL_VERSION_CODE(3, 2); } static void __init -- cgit v1.2.3-70-g09d2