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Date: Tue, 25 Feb 2020 23:47:26 +0100
From: Thomas Gleixner <tglx@...utronix.de>
To: LKML <linux-kernel@...r.kernel.org>
Cc: x86@...nel.org, Steven Rostedt <rostedt@...dmis.org>,
Brian Gerst <brgerst@...il.com>,
Juergen Gross <jgross@...e.com>,
Paolo Bonzini <pbonzini@...hat.com>,
Arnd Bergmann <arnd@...db.de>
Subject: [patch 07/15] x86/entry: Convert SMP system vectors to IDTENTRY_SYSVEC
Convert SMP system vectors 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 prototyoes
No functional change.
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
arch/x86/entry/entry_64.S | 11 -----------
arch/x86/include/asm/entry_arch.h | 7 -------
arch/x86/include/asm/hw_irq.h | 6 ------
arch/x86/include/asm/idtentry.h | 10 ++++++++++
arch/x86/include/asm/traps.h | 2 --
arch/x86/kernel/apic/vector.c | 2 +-
arch/x86/kernel/idt.c | 10 +++++-----
arch/x86/kernel/smp.c | 10 +++++-----
8 files changed, 21 insertions(+), 37 deletions(-)
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -994,11 +994,6 @@ apicinterrupt3 \num \sym \do_sym
POP_SECTION_IRQENTRY
.endm
-#ifdef CONFIG_SMP
-apicinterrupt3 IRQ_MOVE_CLEANUP_VECTOR irq_move_cleanup_interrupt smp_irq_move_cleanup_interrupt
-apicinterrupt3 REBOOT_VECTOR reboot_interrupt smp_reboot_interrupt
-#endif
-
#ifdef CONFIG_X86_UV
apicinterrupt3 UV_BAU_MESSAGE uv_bau_message_intr1 uv_bau_message_interrupt
#endif
@@ -1021,12 +1016,6 @@ apicinterrupt DEFERRED_ERROR_VECTOR def
apicinterrupt THERMAL_APIC_VECTOR thermal_interrupt smp_thermal_interrupt
#endif
-#ifdef CONFIG_SMP
-apicinterrupt CALL_FUNCTION_SINGLE_VECTOR call_function_single_interrupt smp_call_function_single_interrupt
-apicinterrupt CALL_FUNCTION_VECTOR call_function_interrupt smp_call_function_interrupt
-apicinterrupt RESCHEDULE_VECTOR reschedule_interrupt smp_reschedule_interrupt
-#endif
-
#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
@@ -10,13 +10,6 @@
* is no hardware IRQ pin equivalent for them, they are triggered
* through the ICC by us (IPIs)
*/
-#ifdef CONFIG_SMP
-BUILD_INTERRUPT(reschedule_interrupt,RESCHEDULE_VECTOR)
-BUILD_INTERRUPT(call_function_interrupt,CALL_FUNCTION_VECTOR)
-BUILD_INTERRUPT(call_function_single_interrupt,CALL_FUNCTION_SINGLE_VECTOR)
-BUILD_INTERRUPT(irq_move_cleanup_interrupt, IRQ_MOVE_CLEANUP_VECTOR)
-BUILD_INTERRUPT(reboot_interrupt, REBOOT_VECTOR)
-#endif
#ifdef CONFIG_HAVE_KVM
BUILD_INTERRUPT(kvm_posted_intr_ipi, POSTED_INTR_VECTOR)
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -37,16 +37,10 @@ extern asmlinkage void uv_bau_message_in
extern asmlinkage void spurious_apic_interrupt(void);
extern asmlinkage void thermal_interrupt(void);
-extern asmlinkage void reschedule_interrupt(void);
-extern asmlinkage void irq_move_cleanup_interrupt(void);
-extern asmlinkage void reboot_interrupt(void);
extern asmlinkage void threshold_interrupt(void);
extern asmlinkage void deferred_error_interrupt(void);
-extern asmlinkage void call_function_interrupt(void);
-extern asmlinkage void call_function_single_interrupt(void);
-
#ifdef CONFIG_X86_LOCAL_APIC
struct irq_data;
struct pci_dev;
--- a/arch/x86/include/asm/idtentry.h
+++ b/arch/x86/include/asm/idtentry.h
@@ -7,6 +7,8 @@
#ifndef __ASSEMBLY__
+#include <asm/kprobes.h>
+
#ifdef CONFIG_CONTEXT_TRACKING
static __always_inline void enter_from_user_context(void)
{
@@ -487,6 +489,14 @@ DECLARE_IDTENTRY_SYSVEC(LOCAL_TIMER_VECT
DECLARE_IDTENTRY_SYSVEC(X86_PLATFORM_IPI_VECTOR, sysvec_x86_platform_ipi);
#endif
+#ifdef CONFIG_SMP
+DECLARE_IDTENTRY_SYSVEC(IRQ_MOVE_CLEANUP_VECTOR, sysvec_irq_move_cleanup);
+DECLARE_IDTENTRY_SYSVEC(REBOOT_VECTOR, sysvec_reboot);
+DECLARE_IDTENTRY_SYSVEC(CALL_FUNCTION_SINGLE_VECTOR, sysvec_call_function_single);
+DECLARE_IDTENTRY_SYSVEC(CALL_FUNCTION_VECTOR, sysvec_call_function);
+DECLARE_IDTENTRY_SYSVEC(RESCHEDULE_VECTOR, sysvec_reschedule);
+#endif
+
#ifdef CONFIG_X86_MCE
/* Machine check */
DECLARE_IDTENTRY_MCE(X86_TRAP_MC, exc_machine_check);
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -38,8 +38,6 @@ asmlinkage void smp_threshold_interrupt(
asmlinkage void smp_deferred_error_interrupt(struct pt_regs *regs);
#endif
-asmlinkage void smp_irq_move_cleanup_interrupt(void);
-
extern void ist_enter(struct pt_regs *regs);
extern void ist_exit(struct pt_regs *regs);
extern void ist_begin_non_atomic(struct pt_regs *regs);
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -853,7 +853,7 @@ static void free_moved_vector(struct api
apicd->move_in_progress = 0;
}
-asmlinkage __visible void __irq_entry smp_irq_move_cleanup_interrupt(void)
+DEFINE_IDTENTRY_SYSVEC(sysvec_irq_move_cleanup)
{
struct hlist_head *clhead = this_cpu_ptr(&cleanup_list);
struct apic_chip_data *apicd;
--- a/arch/x86/kernel/idt.c
+++ b/arch/x86/kernel/idt.c
@@ -109,11 +109,11 @@ static const __initconst struct idt_data
*/
static const __initconst struct idt_data apic_idts[] = {
#ifdef CONFIG_SMP
- INTG(RESCHEDULE_VECTOR, reschedule_interrupt),
- INTG(CALL_FUNCTION_VECTOR, call_function_interrupt),
- INTG(CALL_FUNCTION_SINGLE_VECTOR, call_function_single_interrupt),
- INTG(IRQ_MOVE_CLEANUP_VECTOR, irq_move_cleanup_interrupt),
- INTG(REBOOT_VECTOR, reboot_interrupt),
+ INTG(RESCHEDULE_VECTOR, asm_sysvec_reschedule),
+ INTG(CALL_FUNCTION_VECTOR, asm_sysvec_call_function),
+ INTG(CALL_FUNCTION_SINGLE_VECTOR, asm_sysvec_call_function_single),
+ INTG(IRQ_MOVE_CLEANUP_VECTOR, asm_sysvec_irq_move_cleanup),
+ INTG(REBOOT_VECTOR, asm_sysvec_reboot),
#endif
#ifdef CONFIG_X86_THERMAL_VECTOR
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -27,6 +27,7 @@
#include <asm/mmu_context.h>
#include <asm/proto.h>
#include <asm/apic.h>
+#include <asm/idtentry.h>
#include <asm/nmi.h>
#include <asm/mce.h>
#include <asm/trace/irq_vectors.h>
@@ -130,8 +131,7 @@ static int smp_stop_nmi_callback(unsigne
/*
* this function calls the 'stop' function on all other CPUs in the system.
*/
-
-asmlinkage __visible void smp_reboot_interrupt(void)
+DEFINE_IDTENTRY_SYSVEC(sysvec_reboot)
{
ipi_entering_ack_irq();
cpu_emergency_vmxoff();
@@ -223,7 +223,7 @@ static void native_stop_other_cpus(int w
* Reschedule call back. KVM uses this interrupt to force a cpu out of
* guest mode
*/
-__visible void __irq_entry smp_reschedule_interrupt(struct pt_regs *regs)
+DEFINE_IDTENTRY_SYSVEC(sysvec_reschedule)
{
ack_APIC_irq();
inc_irq_stat(irq_resched_count);
@@ -244,7 +244,7 @@ static void native_stop_other_cpus(int w
scheduler_ipi();
}
-__visible void __irq_entry smp_call_function_interrupt(struct pt_regs *regs)
+DEFINE_IDTENTRY_SYSVEC(sysvec_call_function)
{
ipi_entering_ack_irq();
trace_call_function_entry(CALL_FUNCTION_VECTOR);
@@ -254,7 +254,7 @@ static void native_stop_other_cpus(int w
exiting_irq();
}
-__visible void __irq_entry smp_call_function_single_interrupt(struct pt_regs *r)
+DEFINE_IDTENTRY_SYSVEC(sysvec_call_function_single)
{
ipi_entering_ack_irq();
trace_call_function_single_entry(CALL_FUNCTION_SINGLE_VECTOR);
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