ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/arch/x86/include/asm/jump_label.h b/marvell/linux/arch/x86/include/asm/jump_label.h
new file mode 100644
index 0000000..06c3cc2
--- /dev/null
+++ b/marvell/linux/arch/x86/include/asm/jump_label.h
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_JUMP_LABEL_H
+#define _ASM_X86_JUMP_LABEL_H
+
+#define HAVE_JUMP_LABEL_BATCH
+
+#define JUMP_LABEL_NOP_SIZE 5
+
+#ifdef CONFIG_X86_64
+# define STATIC_KEY_INIT_NOP P6_NOP5_ATOMIC
+#else
+# define STATIC_KEY_INIT_NOP GENERIC_NOP5_ATOMIC
+#endif
+
+#include <asm/asm.h>
+#include <asm/nops.h>
+
+#ifndef __ASSEMBLY__
+
+#include <linux/stringify.h>
+#include <linux/types.h>
+
+static __always_inline bool arch_static_branch(struct static_key *key, bool branch)
+{
+ asm_volatile_goto("1:"
+ ".byte " __stringify(STATIC_KEY_INIT_NOP) "\n\t"
+ ".pushsection __jump_table, \"aw\" \n\t"
+ _ASM_ALIGN "\n\t"
+ ".long 1b - ., %l[l_yes] - . \n\t"
+ _ASM_PTR "%c0 + %c1 - .\n\t"
+ ".popsection \n\t"
+ : : "i" (key), "i" (branch) : : l_yes);
+
+ return false;
+l_yes:
+ return true;
+}
+
+static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)
+{
+ asm_volatile_goto("1:"
+ ".byte 0xe9\n\t .long %l[l_yes] - 2f\n\t"
+ "2:\n\t"
+ ".pushsection __jump_table, \"aw\" \n\t"
+ _ASM_ALIGN "\n\t"
+ ".long 1b - ., %l[l_yes] - . \n\t"
+ _ASM_PTR "%c0 + %c1 - .\n\t"
+ ".popsection \n\t"
+ : : "i" (key), "i" (branch) : : l_yes);
+
+ return false;
+l_yes:
+ return true;
+}
+
+#else /* __ASSEMBLY__ */
+
+.macro STATIC_JUMP_IF_TRUE target, key, def
+.Lstatic_jump_\@:
+ .if \def
+ /* Equivalent to "jmp.d32 \target" */
+ .byte 0xe9
+ .long \target - .Lstatic_jump_after_\@
+.Lstatic_jump_after_\@:
+ .else
+ .byte STATIC_KEY_INIT_NOP
+ .endif
+ .pushsection __jump_table, "aw"
+ _ASM_ALIGN
+ .long .Lstatic_jump_\@ - ., \target - .
+ _ASM_PTR \key - .
+ .popsection
+.endm
+
+.macro STATIC_JUMP_IF_FALSE target, key, def
+.Lstatic_jump_\@:
+ .if \def
+ .byte STATIC_KEY_INIT_NOP
+ .else
+ /* Equivalent to "jmp.d32 \target" */
+ .byte 0xe9
+ .long \target - .Lstatic_jump_after_\@
+.Lstatic_jump_after_\@:
+ .endif
+ .pushsection __jump_table, "aw"
+ _ASM_ALIGN
+ .long .Lstatic_jump_\@ - ., \target - .
+ _ASM_PTR \key + 1 - .
+ .popsection
+.endm
+
+#endif /* __ASSEMBLY__ */
+
+#endif