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powerpc/32: Replace ASM exception exit by C exception exit from ppc64

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This patch replaces the PPC32 ASM exception exit by C exception exit.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/48f8bae91da899d8e73fc0d75c9af66cc97b4d5b.1615552867.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy
2021-03-29 13:22:07 +11:00
committed by Michael Ellerman
parent e9f99704aa
commit b96bae3ae2
2 changed files with 136 additions and 332 deletions
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arch/powerpc/kernel/entry_32.S
+131 -331
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File diff suppressed because it is too large Load Diff
arch/powerpc/kernel/interrupt.c
+5 -1
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@@ -20,6 +20,10 @@
#include <asm/time.h>
#include <asm/unistd.h>
#if defined(CONFIG_PPC_ADV_DEBUG_REGS) && defined(CONFIG_PPC32)
unsigned long global_dbcr0[NR_CPUS];
#endif
typedef long (*syscall_fn)(long, long, long, long, long, long);
/* Has to run notrace because it is entered not completely "reconciled" */
@@ -392,7 +396,7 @@ again:
ti_flags = READ_ONCE(current_thread_info()->flags);
}
if (IS_ENABLED(CONFIG_PPC_BOOK3S) && IS_ENABLED(CONFIG_PPC_FPU)) {
if (IS_ENABLED(CONFIG_PPC_BOOK3S_64) && IS_ENABLED(CONFIG_PPC_FPU)) {
if (IS_ENABLED(CONFIG_PPC_TRANSACTIONAL_MEM) &&
unlikely((ti_flags & _TIF_RESTORE_TM))) {
restore_tm_state(regs);