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-rw-r--r--arch/riscv/include/asm/Kbuild1
-rw-r--r--arch/riscv/include/asm/extable.h25
-rw-r--r--arch/riscv/include/asm/uaccess.h4
3 files changed, 27 insertions, 3 deletions
diff --git a/arch/riscv/include/asm/Kbuild b/arch/riscv/include/asm/Kbuild
index 445ccc97305a..57b86fd9916c 100644
--- a/arch/riscv/include/asm/Kbuild
+++ b/arch/riscv/include/asm/Kbuild
@@ -1,6 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
generic-y += early_ioremap.h
-generic-y += extable.h
generic-y += flat.h
generic-y += kvm_para.h
generic-y += user.h
diff --git a/arch/riscv/include/asm/extable.h b/arch/riscv/include/asm/extable.h
new file mode 100644
index 000000000000..84760392fc69
--- /dev/null
+++ b/arch/riscv/include/asm/extable.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_RISCV_EXTABLE_H
+#define _ASM_RISCV_EXTABLE_H
+
+/*
+ * The exception table consists of pairs of relative offsets: the first
+ * is the relative offset to an instruction that is allowed to fault,
+ * and the second is the relative offset at which the program should
+ * continue. No registers are modified, so it is entirely up to the
+ * continuation code to figure out what to do.
+ *
+ * All the routines below use bits of fixup code that are out of line
+ * with the main instruction path. This means when everything is well,
+ * we don't even have to jump over them. Further, they do not intrude
+ * on our cache or tlb entries.
+ */
+
+struct exception_table_entry {
+ int insn, fixup;
+};
+
+#define ARCH_HAS_RELATIVE_EXTABLE
+
+int fixup_exception(struct pt_regs *regs);
+#endif
diff --git a/arch/riscv/include/asm/uaccess.h b/arch/riscv/include/asm/uaccess.h
index 714cd311d9f1..0f2c5b9d2e8f 100644
--- a/arch/riscv/include/asm/uaccess.h
+++ b/arch/riscv/include/asm/uaccess.h
@@ -12,8 +12,8 @@
#define _ASM_EXTABLE(from, to) \
" .pushsection __ex_table, \"a\"\n" \
- " .balign " RISCV_SZPTR " \n" \
- " " RISCV_PTR "(" #from "), (" #to ")\n" \
+ " .balign 4\n" \
+ " .long (" #from " - .), (" #to " - .)\n" \
" .popsection\n"
/*