linux-kernel - [PATCH 7/7] powerpc/entry: fix 32bit compile issue for common entry

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Message-ID: <837E79EAF5C5A04B+20241012035621.1245-9-luming.yu@shingroup.cn>
Date: Sat, 12 Oct 2024 11:56:21 +0800
From: Luming Yu <luming.yu@...ngroup.cn>
To: linuxppc-dev@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org,
	mpe@...erman.id.au,
	npiggin@...il.com,
	christophe.leroy@...roup.eu,
	jialong.yang@...ngroup.cn,
	luming.yu@...il.com
Cc: Luming Yu <luming.yu@...ngroup.cn>
Subject: [PATCH 7/7] powerpc/entry: fix 32bit compile issue for common entry

fix irqentry in 32bit code path and hw_irq helpers.

Signed-off-by: Luming Yu <luming.yu@...ngroup.cn>
---
 arch/powerpc/include/asm/hw_irq.h | 6 ++++++
 arch/powerpc/kernel/interrupt.c   | 4 ++++
 include/linux/entry-common.h      | 1 +
 3 files changed, 11 insertions(+)

diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index a3d591784c95..99104f95e1d7 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -469,6 +469,12 @@ static inline bool arch_irqs_disabled(void)
 	return arch_irqs_disabled_flags(arch_local_save_flags());
 }
 
+/*for common entry*/
+static __always_inline bool regs_irqs_disabled(struct pt_regs *regs)
+{
+	return arch_irqs_disabled();
+}
+
 #define hard_irq_disable()		arch_local_irq_disable()
 
 static inline bool arch_irq_disabled_regs(struct pt_regs *regs)
diff --git a/arch/powerpc/kernel/interrupt.c b/arch/powerpc/kernel/interrupt.c
index 8e4cabb0c592..31167700f894 100644
--- a/arch/powerpc/kernel/interrupt.c
+++ b/arch/powerpc/kernel/interrupt.c
@@ -311,7 +311,9 @@ notrace unsigned long interrupt_exit_user_prepare(struct pt_regs *regs)
 	BUG_ON(regs_is_unrecoverable(regs));
 	BUG_ON(arch_irq_disabled_regs(regs));
 	CT_WARN_ON(ct_state() == CONTEXT_USER);
+#ifdef CONFIG_PPC64
 	local_paca->irqentry_s = irqentry_enter(regs);
+#endif
 
 	/*
 	 * We don't need to restore AMR on the way back to userspace for KUAP.
@@ -424,7 +426,9 @@ notrace unsigned long interrupt_exit_kernel_prepare(struct pt_regs *regs)
 	 * AMR value from the check above.
 	 */
 	kuap_kernel_restore(regs, kuap);
+#ifdef CONFIG_PPC64
 	irqentry_exit(regs, local_paca->irqentry_s);
+#endif
 
 	return ret;
 }
diff --git a/include/linux/entry-common.h b/include/linux/entry-common.h
index 6521171469f2..b68eada65a8a 100644
--- a/include/linux/entry-common.h
+++ b/include/linux/entry-common.h
@@ -8,6 +8,7 @@
 #include <linux/seccomp.h>
 #include <linux/sched.h>
 
+#include <linux/irqentry-state.h>
 #include <asm/entry-common.h>
 
 /*
-- 
2.42.0.windows.2