Resguardo inicial

2026-09-06 12:53:21 -06:00
parent 662efe3c2a
commit ad2088d178
94853 changed files with 43200404 additions and 0 deletions
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _ASM_POWERPC_BOOK3S_64_KEXEC_H_
+#define _ASM_POWERPC_BOOK3S_64_KEXEC_H_
+
+#include <asm/plpar_wrappers.h>
+
+#define reset_sprs reset_sprs
+static inline void reset_sprs(void)
+{
+	if (cpu_has_feature(CPU_FTR_ARCH_206)) {
+		mtspr(SPRN_AMR, 0);
+		mtspr(SPRN_UAMOR, 0);
+	}
+
+	if (cpu_has_feature(CPU_FTR_ARCH_207S)) {
+		mtspr(SPRN_IAMR, 0);
+		if (cpu_has_feature(CPU_FTR_HVMODE))
+			mtspr(SPRN_CIABR, 0);
+		else
+			plpar_set_ciabr(0);
+	}
+
+	if (cpu_has_feature(CPU_FTR_ARCH_31)) {
+		mtspr(SPRN_DEXCR, 0);
+		mtspr(SPRN_HASHKEYR, 0);
+	}
+
+	/*  Do we need isync()? We are going via a kexec reset */
+	isync();
+}
+
+#endif