From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: x86@kernel.org, "Paul E. McKenney" <paulmck@kernel.org>,
Andy Lutomirski <luto@kernel.org>,
Alexandre Chartre <alexandre.chartre@oracle.com>,
Frederic Weisbecker <frederic@kernel.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Sean Christopherson <sean.j.christopherson@intel.com>,
Masami Hiramatsu <mhiramat@kernel.org>,
Petr Mladek <pmladek@suse.com>,
Steven Rostedt <rostedt@goodmis.org>,
Joel Fernandes <joel@joelfernandes.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Juergen Gross <jgross@suse.com>, Brian Gerst <brgerst@gmail.com>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Will Deacon <will@kernel.org>
Subject: [patch V4 part 5 18/31] x86/entry: Convert APIC interrupts to IDTENTRY_SYSVEC
Date: Tue, 05 May 2020 15:53:59 +0200 [thread overview]
Message-ID: <20200505135829.882055589@linutronix.de> (raw)
In-Reply-To: 20200505135341.730586321@linutronix.de
Convert APIC interrupts to IDTENTRY_SYSVEC
- Implement the C entry point with DEFINE_IDTENTRY_SYSVEC
- Emit the ASM stub with DECLARE_IDTENTRY_SYSVEC
- Remove the ASM idtentries in 64bit
- Remove the BUILD_INTERRUPT entries in 32bit
- Remove the old prototypes
No functional change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/x86/entry/entry_64.S | 6 ------
arch/x86/include/asm/entry_arch.h | 5 -----
arch/x86/include/asm/hw_irq.h | 4 ----
arch/x86/include/asm/idtentry.h | 8 ++++++++
arch/x86/include/asm/irq.h | 1 -
arch/x86/include/asm/traps.h | 3 ---
arch/x86/kernel/apic/apic.c | 23 +++++------------------
arch/x86/kernel/idt.c | 8 ++++----
arch/x86/kernel/irq.c | 6 +++---
9 files changed, 20 insertions(+), 44 deletions(-)
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -966,9 +966,6 @@ apicinterrupt3 REBOOT_VECTOR reboot_in
apicinterrupt3 UV_BAU_MESSAGE uv_bau_message_intr1 uv_bau_message_interrupt
#endif
-apicinterrupt LOCAL_TIMER_VECTOR apic_timer_interrupt smp_apic_timer_interrupt
-apicinterrupt X86_PLATFORM_IPI_VECTOR x86_platform_ipi smp_x86_platform_ipi
-
#ifdef CONFIG_HAVE_KVM
apicinterrupt3 POSTED_INTR_VECTOR kvm_posted_intr_ipi smp_kvm_posted_intr_ipi
apicinterrupt3 POSTED_INTR_WAKEUP_VECTOR kvm_posted_intr_wakeup_ipi smp_kvm_posted_intr_wakeup_ipi
@@ -993,9 +990,6 @@ apicinterrupt CALL_FUNCTION_VECTOR call
apicinterrupt RESCHEDULE_VECTOR reschedule_interrupt smp_reschedule_interrupt
#endif
-apicinterrupt ERROR_APIC_VECTOR error_interrupt smp_error_interrupt
-apicinterrupt SPURIOUS_APIC_VECTOR spurious_apic_interrupt smp_spurious_apic_interrupt
-
#ifdef CONFIG_IRQ_WORK
apicinterrupt IRQ_WORK_VECTOR irq_work_interrupt smp_irq_work_interrupt
#endif
--- a/arch/x86/include/asm/entry_arch.h
+++ b/arch/x86/include/asm/entry_arch.h
@@ -33,11 +33,6 @@ BUILD_INTERRUPT(kvm_posted_intr_nested_i
*/
#ifdef CONFIG_X86_LOCAL_APIC
-BUILD_INTERRUPT(apic_timer_interrupt,LOCAL_TIMER_VECTOR)
-BUILD_INTERRUPT(error_interrupt,ERROR_APIC_VECTOR)
-BUILD_INTERRUPT(spurious_apic_interrupt,SPURIOUS_APIC_VECTOR)
-BUILD_INTERRUPT(x86_platform_ipi, X86_PLATFORM_IPI_VECTOR)
-
#ifdef CONFIG_IRQ_WORK
BUILD_INTERRUPT(irq_work_interrupt, IRQ_WORK_VECTOR)
#endif
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -29,16 +29,12 @@
#include <asm/sections.h>
/* Interrupt handlers registered during init_IRQ */
-extern asmlinkage void apic_timer_interrupt(void);
-extern asmlinkage void x86_platform_ipi(void);
extern asmlinkage void kvm_posted_intr_ipi(void);
extern asmlinkage void kvm_posted_intr_wakeup_ipi(void);
extern asmlinkage void kvm_posted_intr_nested_ipi(void);
-extern asmlinkage void error_interrupt(void);
extern asmlinkage void irq_work_interrupt(void);
extern asmlinkage void uv_bau_message_intr1(void);
-extern asmlinkage void spurious_apic_interrupt(void);
extern asmlinkage void thermal_interrupt(void);
extern asmlinkage void reschedule_interrupt(void);
--- a/arch/x86/include/asm/idtentry.h
+++ b/arch/x86/include/asm/idtentry.h
@@ -565,6 +565,14 @@ DECLARE_IDTENTRY_IRQ(X86_TRAP_OTHER, com
DECLARE_IDTENTRY_IRQ(X86_TRAP_OTHER, spurious_interrupt);
#endif
+/* System vector entry points */
+#ifdef CONFIG_X86_LOCAL_APIC
+DECLARE_IDTENTRY_SYSVEC(ERROR_APIC_VECTOR, sysvec_error_interrupt);
+DECLARE_IDTENTRY_SYSVEC(SPURIOUS_APIC_VECTOR, sysvec_spurious_apic_interrupt);
+DECLARE_IDTENTRY_SYSVEC(LOCAL_TIMER_VECTOR, sysvec_apic_timer_interrupt);
+DECLARE_IDTENTRY_SYSVEC(X86_PLATFORM_IPI_VECTOR, sysvec_x86_platform_ipi);
+#endif
+
#undef X86_TRAP_OTHER
#endif
--- a/arch/x86/include/asm/irq.h
+++ b/arch/x86/include/asm/irq.h
@@ -44,7 +44,6 @@ extern void __init init_IRQ(void);
void arch_trigger_cpumask_backtrace(const struct cpumask *mask,
bool exclude_self);
-extern __visible void smp_x86_platform_ipi(struct pt_regs *regs);
#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
#endif
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -40,9 +40,6 @@ asmlinkage void smp_threshold_interrupt(
asmlinkage void smp_deferred_error_interrupt(struct pt_regs *regs);
#endif
-void smp_apic_timer_interrupt(struct pt_regs *regs);
-void smp_error_interrupt(struct pt_regs *regs);
-void smp_spurious_apic_interrupt(struct pt_regs *regs);
asmlinkage void smp_irq_move_cleanup_interrupt(void);
#ifdef CONFIG_VMAP_STACK
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -1121,23 +1121,14 @@ static void local_apic_timer_interrupt(v
* [ if a single-CPU system runs an SMP kernel then we call the local
* interrupt as well. Thus we cannot inline the local irq ... ]
*/
-__visible void __irq_entry smp_apic_timer_interrupt(struct pt_regs *regs)
+DEFINE_IDTENTRY_SYSVEC(sysvec_apic_timer_interrupt)
{
struct pt_regs *old_regs = set_irq_regs(regs);
- /*
- * NOTE! We'd better ACK the irq immediately,
- * because timer handling can be slow.
- *
- * update_process_times() expects us to have done irq_enter().
- * Besides, if we don't timer interrupts ignore the global
- * interrupt lock, which is the WrongThing (tm) to do.
- */
- entering_ack_irq();
+ ack_APIC_irq();
trace_local_timer_entry(LOCAL_TIMER_VECTOR);
local_apic_timer_interrupt();
trace_local_timer_exit(LOCAL_TIMER_VECTOR);
- exiting_irq();
set_irq_regs(old_regs);
}
@@ -2161,7 +2152,7 @@ void __init register_lapic_address(unsig
* trigger on an entry which is routed to the common_spurious idtentry
* point.
*
- * Also called from smp_spurious_apic_interrupt().
+ * Also called from sysvec_spurious_apic_interrupt().
*/
DEFINE_IDTENTRY_IRQ(spurious_interrupt)
{
@@ -2198,17 +2189,15 @@ DEFINE_IDTENTRY_IRQ(spurious_interrupt)
trace_spurious_apic_exit(vector);
}
-__visible void smp_spurious_apic_interrupt(struct pt_regs *regs)
+DEFINE_IDTENTRY_SYSVEC(sysvec_spurious_apic_interrupt)
{
- entering_irq();
__spurious_interrupt(regs, SPURIOUS_APIC_VECTOR);
- exiting_irq();
}
/*
* This interrupt should never happen with our APIC/SMP architecture
*/
-__visible void __irq_entry smp_error_interrupt(struct pt_regs *regs)
+DEFINE_IDTENTRY_SYSVEC(sysvec_error_interrupt)
{
static const char * const error_interrupt_reason[] = {
"Send CS error", /* APIC Error Bit 0 */
@@ -2222,7 +2211,6 @@ DEFINE_IDTENTRY_IRQ(spurious_interrupt)
};
u32 v, i = 0;
- entering_irq();
trace_error_apic_entry(ERROR_APIC_VECTOR);
/* First tickle the hardware, only then report what went on. -- REW */
@@ -2246,7 +2234,6 @@ DEFINE_IDTENTRY_IRQ(spurious_interrupt)
apic_printk(APIC_DEBUG, KERN_CONT "\n");
trace_error_apic_exit(ERROR_APIC_VECTOR);
- exiting_irq();
}
/**
--- a/arch/x86/kernel/idt.c
+++ b/arch/x86/kernel/idt.c
@@ -129,8 +129,8 @@ static const __initconst struct idt_data
#endif
#ifdef CONFIG_X86_LOCAL_APIC
- INTG(LOCAL_TIMER_VECTOR, apic_timer_interrupt),
- INTG(X86_PLATFORM_IPI_VECTOR, x86_platform_ipi),
+ INTG(LOCAL_TIMER_VECTOR, asm_sysvec_apic_timer_interrupt),
+ INTG(X86_PLATFORM_IPI_VECTOR, asm_sysvec_x86_platform_ipi),
# ifdef CONFIG_HAVE_KVM
INTG(POSTED_INTR_VECTOR, kvm_posted_intr_ipi),
INTG(POSTED_INTR_WAKEUP_VECTOR, kvm_posted_intr_wakeup_ipi),
@@ -142,8 +142,8 @@ static const __initconst struct idt_data
#ifdef CONFIG_X86_UV
INTG(UV_BAU_MESSAGE, uv_bau_message_intr1),
#endif
- INTG(SPURIOUS_APIC_VECTOR, spurious_apic_interrupt),
- INTG(ERROR_APIC_VECTOR, error_interrupt),
+ INTG(SPURIOUS_APIC_VECTOR, asm_sysvec_spurious_apic_interrupt),
+ INTG(ERROR_APIC_VECTOR, asm_sysvec_error_interrupt),
#endif
};
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -14,6 +14,7 @@
#include <linux/irq.h>
#include <asm/apic.h>
+#include <asm/traps.h>
#include <asm/io_apic.h>
#include <asm/irq.h>
#include <asm/mce.h>
@@ -262,17 +263,16 @@ void (*x86_platform_ipi_callback)(void)
/*
* Handler for X86_PLATFORM_IPI_VECTOR.
*/
-__visible void __irq_entry smp_x86_platform_ipi(struct pt_regs *regs)
+DEFINE_IDTENTRY_SYSVEC(sysvec_x86_platform_ipi)
{
struct pt_regs *old_regs = set_irq_regs(regs);
- entering_ack_irq();
+ ack_APIC_irq();
trace_x86_platform_ipi_entry(X86_PLATFORM_IPI_VECTOR);
inc_irq_stat(x86_platform_ipis);
if (x86_platform_ipi_callback)
x86_platform_ipi_callback();
trace_x86_platform_ipi_exit(X86_PLATFORM_IPI_VECTOR);
- exiting_irq();
set_irq_regs(old_regs);
}
#endif
next prev parent reply other threads:[~2020-05-05 14:18 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-05 13:53 [patch V4 part 5 00/31] x86/entry: Entry/exception code rework, Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 01/31] genirq: Provide irq_enter/exit_rcu() Thomas Gleixner
2020-05-15 5:53 ` Andy Lutomirski
2020-05-05 13:53 ` [patch V4 part 5 02/31] x86/entry: Provide helpers for execute on irqstack Thomas Gleixner
2020-05-06 8:20 ` Thomas Gleixner
2020-05-10 4:33 ` Lai Jiangshan
2020-05-11 9:07 ` Alexandre Chartre
2020-05-11 11:54 ` Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 03/31] x86/entry/64: Move softirq stack switch to C Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 04/31] x86/entry: Split idtentry_enter/exit() Thomas Gleixner
2020-05-11 12:42 ` Alexandre Chartre
2020-05-05 13:53 ` [patch V4 part 5 05/31] x86/entry: Switch XEN/PV hypercall entry to IDTENTRY Thomas Gleixner
2020-05-07 2:11 ` Boris Ostrovsky
2020-05-07 8:30 ` Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 06/31] x86/entry/64: Simplify idtentry_body Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 07/31] x86/entry: Provide idtentry_entry/exit_cond_rcu() Thomas Gleixner
2020-05-11 13:53 ` Alexandre Chartre
2020-05-11 14:13 ` Peter Zijlstra
2020-05-12 16:30 ` Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 08/31] x86/entry: Switch page fault exception to IDTENTRY_RAW Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 09/31] x86/entry: Remove the transition leftovers Thomas Gleixner
2020-05-11 14:11 ` Alexandre Chartre
2020-05-05 13:53 ` [patch V4 part 5 10/31] x86/entry: Change exit path of xen_failsafe_callback Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 11/31] x86/entry/64: Remove error_exit Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 12/31] x86/entry/32: Remove common_exception Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 13/31] x86/irq: Convey vector as argument and not in ptregs Thomas Gleixner
2020-05-10 2:44 ` Lai Jiangshan
2020-05-11 14:35 ` Thomas Gleixner
2020-05-11 15:11 ` Lai Jiangshan
2020-05-05 13:53 ` [patch V4 part 5 14/31] x86/irq/64: Provide handle_irq() Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 15/31] x86/entry: Add IRQENTRY_IRQ macro Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 16/31] x86/entry: Use idtentry for interrupts Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 17/31] x86/entry: Provide IDTENTRY_SYSVEC Thomas Gleixner
2020-05-05 13:53 ` Thomas Gleixner [this message]
2020-05-05 13:54 ` [patch V4 part 5 19/31] x86/entry: Convert SMP system vectors to IDTENTRY_SYSVEC Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 20/31] x86/entry: Convert various system vectors Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 21/31] x86/entry: Convert KVM vectors to IDTENTRY_SYSVEC Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 22/31] x86/entry: Convert various hypervisor " Thomas Gleixner
2020-05-06 16:56 ` Wei Liu
2020-05-06 17:11 ` Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 23/31] x86/entry: Convert XEN hypercall vector " Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 24/31] x86/entry: Convert reschedule interrupt to IDTENTRY_RAW Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 25/31] x86/entry: Remove the apic/BUILD interrupt leftovers Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 26/31] x86/entry/64: Remove IRQ stack switching ASM Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 27/31] x86/entry: Make enter_from_user_mode() static Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 28/31] x86/entry/32: Remove redundant irq disable code Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 29/31] x86/entry/64: Remove TRACE_IRQS_*_DEBUG Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 30/31] x86/entry: Move paranoid irq tracing out of ASM code Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 31/31] x86/entry: Remove the TRACE_IRQS cruft Thomas Gleixner
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