Le 18/11/2025 à 14:42, René Rebe a écrit :
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Since a while booting a PS3 instantly yields:
Can you bisect to say since when, and add a Fixes: tag to the commit ?
<4>SRR0 was: c0000000000971b4 should be: c0000000002d55c4
<4>SRR1 was: 8000000000008032 should be: 8000000000008032
Fix LV1 clobbering SRR by srr_regs_clobbered() each lv1 call.
Attribute srr_regs_clobbered always_inline for use by modules.
Signed-off-by: René Rebe <[email protected]>
---
arch/powerpc/include/asm/interrupt.h | 1 +
arch/powerpc/include/asm/lv1call.h | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/interrupt.h
b/arch/powerpc/include/asm/interrupt.h
index eb0e4a20b818..783c6f32a395 100644
--- a/arch/powerpc/include/asm/interrupt.h
+++ b/arch/powerpc/include/asm/interrupt.h
@@ -106,6 +106,7 @@ static inline bool is_implicit_soft_masked(struct pt_regs
*regs)
return search_kernel_soft_mask_table(regs->nip);
}
+__attribute__((always_inline))
static inline void srr_regs_clobbered(void)
Instead, use:
static __always_inline void srr_regs_clobbered(void)
{
local_paca->srr_valid = 0;
diff --git a/arch/powerpc/include/asm/lv1call.h
b/arch/powerpc/include/asm/lv1call.h
index ae70120953a8..48dd55a2b72e 100644
--- a/arch/powerpc/include/asm/lv1call.h
+++ b/arch/powerpc/include/asm/lv1call.h
@@ -14,6 +14,7 @@
#include <linux/types.h>
#include <linux/export.h>
+#include <asm/interrupt.h>
/* lv1 call declaration macros */
@@ -208,7 +209,7 @@
#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(__ASSEMBLER__) */
--
2.46.0
--
René Rebe, ExactCODE GmbH, Berlin, Germany
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