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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/mips/dec/prom/locore.S
parentInitial commit. (diff)
downloadlinux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz
linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/mips/dec/prom/locore.S')
-rw-r--r--arch/mips/dec/prom/locore.S30
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/mips/dec/prom/locore.S b/arch/mips/dec/prom/locore.S
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index 000000000..0eb8fab62
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+++ b/arch/mips/dec/prom/locore.S
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+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * locore.S
+ */
+#include <asm/asm.h>
+#include <asm/regdef.h>
+#include <asm/mipsregs.h>
+
+ .text
+
+/*
+ * Simple general exception handling routine. This one is used for the
+ * Memory sizing routine for pmax machines. HK
+ */
+
+NESTED(genexcept_early, 0, sp)
+ .set noat
+ .set noreorder
+
+ mfc0 k0, CP0_STATUS
+ la k1, mem_err
+
+ sw k0, 0(k1)
+
+ mfc0 k0, CP0_EPC
+ nop
+ addiu k0, 4 # skip the causing instruction
+ jr k0
+ rfe
+END(genexcept_early)