From: Nicholas Piggin <npiggin@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH 05/18] powerpc: add interrupt wrapper entry / exit stub functions
Date: Fri, 6 Nov 2020 00:34:18 +1000 [thread overview]
Message-ID: <20201105143431.1874789-6-npiggin@gmail.com> (raw)
In-Reply-To: <20201105143431.1874789-1-npiggin@gmail.com>
These will be used by subsequent patches.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/powerpc/include/asm/interrupt.h | 52 ++++++++++++++++++++++++++++
1 file changed, 52 insertions(+)
diff --git a/arch/powerpc/include/asm/interrupt.h b/arch/powerpc/include/asm/interrupt.h
index 3292f5094085..c5ffcf144bbd 100644
--- a/arch/powerpc/include/asm/interrupt.h
+++ b/arch/powerpc/include/asm/interrupt.h
@@ -5,6 +5,36 @@
#include <linux/context_tracking.h>
#include <asm/ftrace.h>
+struct interrupt_state {
+};
+
+static inline void interrupt_enter_prepare(struct pt_regs *regs, struct interrupt_state *state)
+{
+}
+
+static inline void interrupt_exit_prepare(struct pt_regs *regs, struct interrupt_state *state)
+{
+}
+
+static inline void interrupt_async_enter_prepare(struct pt_regs *regs, struct interrupt_state *state)
+{
+}
+
+static inline void interrupt_async_exit_prepare(struct pt_regs *regs, struct interrupt_state *state)
+{
+}
+
+struct interrupt_nmi_state {
+};
+
+static inline void interrupt_nmi_enter_prepare(struct pt_regs *regs, struct interrupt_nmi_state *state)
+{
+}
+
+static inline void interrupt_nmi_exit_prepare(struct pt_regs *regs, struct interrupt_nmi_state *state)
+{
+}
+
/**
* DECLARE_INTERRUPT_HANDLER_RAW - Declare raw interrupt handler function
* @func: Function name of the entry point
@@ -59,7 +89,13 @@ static __always_inline void ___##func(struct pt_regs *regs); \
\
__visible noinstr void func(struct pt_regs *regs) \
{ \
+ struct interrupt_state state; \
+ \
+ interrupt_enter_prepare(regs, &state); \
+ \
___##func (regs); \
+ \
+ interrupt_exit_prepare(regs, &state); \
} \
\
static __always_inline void ___##func(struct pt_regs *regs)
@@ -87,10 +123,15 @@ static __always_inline long ___##func(struct pt_regs *regs); \
\
__visible noinstr long func(struct pt_regs *regs) \
{ \
+ struct interrupt_state state; \
long ret; \
\
+ interrupt_enter_prepare(regs, &state); \
+ \
ret = ___##func (regs); \
\
+ interrupt_exit_prepare(regs, &state); \
+ \
return ret; \
} \
\
@@ -117,7 +158,13 @@ static __always_inline void ___##func(struct pt_regs *regs); \
\
__visible noinstr void func(struct pt_regs *regs) \
{ \
+ struct interrupt_state state; \
+ \
+ interrupt_async_enter_prepare(regs, &state); \
+ \
___##func (regs); \
+ \
+ interrupt_async_exit_prepare(regs, &state); \
} \
\
static __always_inline void ___##func(struct pt_regs *regs)
@@ -145,10 +192,15 @@ static __always_inline long ___##func(struct pt_regs *regs); \
\
__visible noinstr long func(struct pt_regs *regs) \
{ \
+ struct interrupt_nmi_state state; \
long ret; \
\
+ interrupt_nmi_enter_prepare(regs, &state); \
+ \
ret = ___##func (regs); \
\
+ interrupt_nmi_exit_prepare(regs, &state); \
+ \
return ret; \
} \
\
--
2.23.0
next prev parent reply other threads:[~2020-11-05 14:52 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-05 14:34 [PATCH 00/18] powerpc: interrupt wrappers Nicholas Piggin
2020-11-05 14:34 ` [PATCH 01/18] powerpc/64s: move the last of the page fault handling logic to C Nicholas Piggin
2020-11-05 21:54 ` kernel test robot
2020-11-05 14:34 ` [PATCH 02/18] powerpc: remove arguments from fault handler functions Nicholas Piggin
2020-11-06 7:59 ` Christophe Leroy
2020-11-10 8:29 ` Nicholas Piggin
2020-11-10 11:15 ` Christophe Leroy
2020-11-11 4:45 ` Nicholas Piggin
2020-11-05 14:34 ` [PATCH 03/18] powerpc: bad_page_fault, do_break get registers from regs Nicholas Piggin
2020-11-05 20:43 ` kernel test robot
2020-11-06 8:14 ` Christophe Leroy
2020-11-10 8:34 ` Nicholas Piggin
2020-11-10 11:19 ` Christophe Leroy
2020-11-11 4:46 ` Nicholas Piggin
2020-11-11 6:39 ` Nicholas Piggin
2020-11-05 14:34 ` [PATCH 04/18] powerpc: interrupt handler wrapper functions Nicholas Piggin
2020-11-05 14:34 ` Nicholas Piggin [this message]
2020-11-05 14:34 ` [PATCH 06/18] powerpc: add interrupt_cond_local_irq_enable helper Nicholas Piggin
2020-11-05 14:34 ` [PATCH 07/18] powerpc/64: context tracking remove _TIF_NOHZ Nicholas Piggin
2020-11-05 14:34 ` [PATCH 08/18] powerpc/64: context tracking move to interrupt wrappers Nicholas Piggin
2020-11-05 14:34 ` [PATCH 09/18] powerpc/64: add context tracking to asynchronous interrupts Nicholas Piggin
2020-11-05 14:34 ` [PATCH 10/18] powerpc/64s: move context tracking exit to interrupt exit path Nicholas Piggin
2020-11-05 14:34 ` [PATCH 11/18] powerpc/64s: reconcile interrupts in C Nicholas Piggin
2020-11-05 14:34 ` [PATCH 12/18] powerpc/64: move account_stolen_time into its own function Nicholas Piggin
2020-11-05 14:34 ` [PATCH 13/18] powerpc/64: entry cpu time accounting in C Nicholas Piggin
2020-11-05 14:34 ` [PATCH 14/18] powerpc: move NMI entry/exit code into wrapper Nicholas Piggin
2020-11-05 14:34 ` [PATCH 15/18] powerpc/64s: move NMI soft-mask handling to C Nicholas Piggin
2020-11-05 14:34 ` [PATCH 16/18] powerpc/64s: runlatch interrupt handling in C Nicholas Piggin
2020-11-05 14:34 ` [PATCH 17/18] powerpc/64s: power4 nap fixup " Nicholas Piggin
2020-11-05 14:34 ` [PATCH 18/18] powerpc/64s: move power4 idle entirely to C Nicholas Piggin
2020-11-06 7:34 ` kernel test robot
2020-11-07 9:43 ` Christophe Leroy
2020-11-10 8:43 ` Nicholas Piggin
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