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authorZou Nan hai <nanhai.zou@intel.com>2006-12-07 09:51:35 -0800
committerTony Luck <tony.luck@intel.com>2006-12-07 09:51:35 -0800
commita79561134f38de12dce14ed72138f38e55ef53fc (patch)
treeabe109dbe85e5b0085ba9b9a7eed7cc623d67eec /arch/ia64/kernel/iosapic.c
parent620034c84d1d939717bdfbe02c51a3fee43541c3 (diff)
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[IA64] IA64 Kexec/kdump
Changes and updates. 1. Remove fake rendz path and related code according to discuss with Khalid Aziz. 2. fc.i offset fix in relocate_kernel.S. 3. iospic shutdown code eoi and mask race fix from Fujitsu. 4. Warm boot hook in machine_kexec to SN SAL code from Jack Steiner. 5. Send slave to SAL slave loop patch from Jay Lan. 6. Kdump on non-recoverable MCA event patch from Jay Lan 7. Use CTL_UNNUMBERED in kdump_on_init sysctl. Signed-off-by: Zou Nan hai <nanhai.zou@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
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)
{