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authorLinus Torvalds <torvalds@woody.osdl.org>2006-12-07 15:39:22 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-07 15:39:22 -0800
commit6ee7e78e7c78d871409ad4df30551c9355be7d0e (patch)
tree84deeea72d7234d0b5652483b11760f394ae1131 /arch/ia64/kernel/iosapic.c
parent7f3af60e5a444b287d740a84998a8f480645dadf (diff)
parent52fd91088bcbaea5ab441d09d39c21eb684e54ea (diff)
Merge branch 'release' of master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] replace kmalloc+memset with kzalloc [IA64] resolve name clash by renaming is_available_memory() [IA64] Need export for csum_ipv6_magic [IA64] Fix DISCONTIGMEM without VIRTUAL_MEM_MAP [PATCH] Add support for type argument in PAL_GET_PSTATE [IA64] tidy up return value of ip_fast_csum [IA64] implement csum_ipv6_magic for ia64. [IA64] More Itanium PAL spec updates [IA64] Update processor_info features [IA64] Add se bit to Processor State Parameter structure [IA64] Add dp bit to cache and bus check structs [IA64] SN: Correctly update smp_affinty mask [IA64] sparse cleanups [IA64] IA64 Kexec/kdump
Diffstat (limited to 'arch/ia64/kernel/iosapic.c')
-rw-r--r--arch/ia64/kernel/iosapic.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index 60d64950e3c2..0fc5fb7865cf 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -288,6 +288,27 @@ nop (unsigned int irq)
/* do nothing... */
}
+
+#ifdef CONFIG_KEXEC
+void
+kexec_disable_iosapic(void)
+{
+ struct iosapic_intr_info *info;
+ struct iosapic_rte_info *rte;
+ u8 vec = 0;
+ for (info = iosapic_intr_info; info <
+ iosapic_intr_info + IA64_NUM_VECTORS; ++info, ++vec) {
+ list_for_each_entry(rte, &info->rtes,
+ rte_list) {
+ iosapic_write(rte->addr,
+ IOSAPIC_RTE_LOW(rte->rte_index),
+ IOSAPIC_MASK|vec);
+ iosapic_eoi(rte->addr, vec);
+ }
+ }
+}
+#endif
+
static void
mask_irq (unsigned int irq)
{