Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 48 insertions, 0 deletions

diff --git a/arch/arm/include/asm/system_misc.h b/arch/arm/include/asm/system_misc.h
new file mode 100644
index 000000000..8e76db83c
--- /dev/null
+++ b/arch/arm/include/asm/system_misc.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_ARM_SYSTEM_MISC_H
+#define __ASM_ARM_SYSTEM_MISC_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/compiler.h>
+#include <linux/linkage.h>
+#include <linux/irqflags.h>
+#include <linux/reboot.h>
+#include <linux/percpu.h>
+
+extern void cpu_init(void);
+
+void soft_restart(unsigned long);
+extern void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
+extern void (*arm_pm_idle)(void);
+
+#ifdef CONFIG_HARDEN_BRANCH_PREDICTOR
+typedef void (*harden_branch_predictor_fn_t)(void);
+DECLARE_PER_CPU(harden_branch_predictor_fn_t, harden_branch_predictor_fn);
+static inline void harden_branch_predictor(void)
+{
+	harden_branch_predictor_fn_t fn = per_cpu(harden_branch_predictor_fn,
+						  smp_processor_id());
+	if (fn)
+		fn();
+}
+#else
+#define harden_branch_predictor() do { } while (0)
+#endif
+
+#define UDBG_UNDEFINED	(1 << 0)
+#define UDBG_SYSCALL	(1 << 1)
+#define UDBG_BADABORT	(1 << 2)
+#define UDBG_SEGV	(1 << 3)
+#define UDBG_BUS	(1 << 4)
+
+extern unsigned int user_debug;
+
+static inline int handle_guest_sea(phys_addr_t addr, unsigned int esr)
+{
+	return -1;
+}
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_ARM_SYSTEM_MISC_H */