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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/ia64/kernel/mca_drv_asm.S
downloadlinux-stericsson-2.6.12-rc2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/ia64/kernel/mca_drv_asm.S')
-rw-r--r--arch/ia64/kernel/mca_drv_asm.S45
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/ia64/kernel/mca_drv_asm.S b/arch/ia64/kernel/mca_drv_asm.S
new file mode 100644
index 000000000000..bcfa05acc561
--- /dev/null
+++ b/arch/ia64/kernel/mca_drv_asm.S
@@ -0,0 +1,45 @@
+/*
+ * File: mca_drv_asm.S
+ * Purpose: Assembly portion of Generic MCA handling
+ *
+ * Copyright (C) 2004 FUJITSU LIMITED
+ * Copyright (C) Hidetoshi Seto (seto.hidetoshi@jp.fujitsu.com)
+ */
+#include <linux/config.h>
+#include <linux/threads.h>
+
+#include <asm/asmmacro.h>
+#include <asm/processor.h>
+
+GLOBAL_ENTRY(mca_handler_bhhook)
+ invala // clear RSE ?
+ ;; //
+ cover //
+ ;; //
+ clrrrb //
+ ;;
+ alloc r16=ar.pfs,0,2,1,0 // make a new frame
+ ;;
+ mov r13=IA64_KR(CURRENT) // current task pointer
+ ;;
+ adds r12=IA64_TASK_THREAD_KSP_OFFSET,r13
+ ;;
+ ld8 r12=[r12] // stack pointer
+ ;;
+ mov loc0=r16
+ movl loc1=mca_handler_bh // recovery C function
+ ;;
+ mov out0=r8 // poisoned address
+ mov b6=loc1
+ ;;
+ mov loc1=rp
+ ;;
+ br.call.sptk.many rp=b6 // not return ...
+ ;;
+ mov ar.pfs=loc0
+ mov rp=loc1
+ ;;
+ mov r8=r0
+ br.ret.sptk.many rp
+ ;;
+END(mca_handler_bhhook)