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authorXiongwei Song <sxwjean@gmail.com>2021-08-07 03:02:39 +0200
committerMichael Ellerman <mpe@ellerman.id.au>2021-08-26 13:21:07 +0200
commitd9db6e420268b2d561731468a31f0b15e2e9a145 (patch)
tree92a04cacda6be1d0fefefb80fe311af18360c554 /arch/powerpc/kernel/asm-offsets.c
parentpowerpc: Add dear as a synonym for pt_regs.dar register (diff)
downloadlinux-d9db6e420268b2d561731468a31f0b15e2e9a145.tar.xz
linux-d9db6e420268b2d561731468a31f0b15e2e9a145.zip
powerpc/64e: Get dear offset with _DEAR macro
Use _DEAR to get the offset of dear register in pr_regs for 64e cpus. Signed-off-by: Xiongwei Song <sxwjean@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210807010239.416055-5-sxwjean@me.com
Diffstat (limited to 'arch/powerpc/kernel/asm-offsets.c')
-rw-r--r--arch/powerpc/kernel/asm-offsets.c13
1 files changed, 3 insertions, 10 deletions
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index f4ebc435fd78..8357d5fcd09e 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -286,23 +286,16 @@ int main(void)
STACK_PT_REGS_OFFSET(_CCR, ccr);
STACK_PT_REGS_OFFSET(_XER, xer);
STACK_PT_REGS_OFFSET(_DAR, dar);
+ STACK_PT_REGS_OFFSET(_DEAR, dear);
STACK_PT_REGS_OFFSET(_DSISR, dsisr);
STACK_PT_REGS_OFFSET(_ESR, esr);
STACK_PT_REGS_OFFSET(ORIG_GPR3, orig_gpr3);
STACK_PT_REGS_OFFSET(RESULT, result);
STACK_PT_REGS_OFFSET(_TRAP, trap);
-#ifndef CONFIG_PPC64
- /*
- * The PowerPC 400-class & Book-E processors have neither the DAR
- * nor the DSISR SPRs. Hence, we overload them to hold the similar
- * DEAR and ESR SPRs for such processors. For critical interrupts
- * we use them to hold SRR0 and SRR1.
- */
- STACK_PT_REGS_OFFSET(_DEAR, dar);
-#else /* CONFIG_PPC64 */
+#ifdef CONFIG_PPC64
STACK_PT_REGS_OFFSET(SOFTE, softe);
STACK_PT_REGS_OFFSET(_PPR, ppr);
-#endif /* CONFIG_PPC64 */
+#endif
#ifdef CONFIG_PPC_PKEY
STACK_PT_REGS_OFFSET(STACK_REGS_AMR, amr);