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Booting Ps3 instantly yields:

<4>SRR0 was: c0000000000971b4 should be: c0000000002d55c4
<4>SRR1 was: 8000000000008032 should be: 8000000000008032

Fix this by marking ssr regs clobbered for each lv1 call.

Signed-off-by: René Rebe <rene@exactcode.de>

--- ./arch/powerpc/include/asm/lv1call.h.vanilla	2024-01-14 20:55:26.286402628 +0100
+++ ./arch/powerpc/include/asm/lv1call.h	2024-01-14 21:44:45.431525711 +0100
@@ -14,6 +14,7 @@
 
 #include <linux/types.h>
 #include <linux/export.h>
+#include <asm/interrupt.h>
 
 /* lv1 call declaration macros */
 
@@ -210,7 +211,7 @@
 #define LV1_CALL(name, in, out, num)                               \
   extern s64 _lv1_##name(LV1_##in##_IN_##out##_OUT_ARG_DECL);      \
   static inline int lv1_##name(LV1_##in##_IN_##out##_OUT_ARG_DECL) \
-    {return _lv1_##name(LV1_##in##_IN_##out##_OUT_ARGS);}
+    {srr_regs_clobbered(); return _lv1_##name(LV1_##in##_IN_##out##_OUT_ARGS);}
 #endif
 
 #endif /* !defined(__ASSEMBLY__) */
--- ./arch/powerpc/include/asm/interrupt.h.vanilla	2024-01-14 21:42:11.164519295 +0100
+++ ./arch/powerpc/include/asm/interrupt.h	2024-01-14 21:43:08.143521665 +0100
@@ -81,6 +81,7 @@
 #ifdef CONFIG_PPC_BOOK3S_64
 DECLARE_STATIC_KEY_FALSE(interrupt_exit_not_reentrant);
 
+__attribute__((always_inline))
 static inline void srr_regs_clobbered(void)
 {
 	local_paca->srr_valid = 0;