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[27.32.36.31]) by smtp.gmail.com with ESMTPSA id n15sm2876771pgt.75.2020.11.05.06.34.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Nov 2020 06:34:56 -0800 (PST) From: Nicholas Piggin To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH 05/18] powerpc: add interrupt wrapper entry / exit stub functions Date: Fri, 6 Nov 2020 00:34:18 +1000 Message-Id: <20201105143431.1874789-6-npiggin@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20201105143431.1874789-1-npiggin@gmail.com> References: <20201105143431.1874789-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nicholas Piggin Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" These will be used by subsequent patches. Signed-off-by: Nicholas Piggin --- 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 #include +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