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| author | Alex Chiang <achiang@hp.com> | 2008-02-27 18:41:38 -0700 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2008-03-04 14:26:50 -0800 |
| commit | 6ed0dc5ba811ce682f48988bf114669265e1120d (patch) | |
| tree | d5a2dfdd7d183634899e72021a9a981838e3a771 /arch/ia64/kernel/sal.c | |
| parent | 022f9268854e88adcc343de77a440d6e82f74c2e (diff) | |
| download | linux-6ed0dc5ba811ce682f48988bf114669265e1120d.tar.gz | |
[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 <achiang@hp.com> Acked-by: Russ Anderson <rja@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel/sal.c')
| -rw-r--r-- | arch/ia64/kernel/sal.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/ia64/kernel/sal.c b/arch/ia64/kernel/sal.c index f44fe8412162..a3022dc48ef8 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 |