From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: x86@kernel.org, Andy Lutomirski <luto@kernel.org>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Sean Christopherson <sean.j.christopherson@intel.com>
Subject: [patch V2 24/29] x86/irq/64: Rename irq_stack_ptr to hardirq_stack_ptr
Date: Fri, 05 Apr 2019 17:07:22 +0200 [thread overview]
Message-ID: <20190405150930.590799465@linutronix.de> (raw)
In-Reply-To: <20190405150658.237064784@linutronix.de>
Preparatory patch to share code with 32bit.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/x86/entry/entry_64.S | 2 +-
arch/x86/include/asm/processor.h | 2 +-
arch/x86/kernel/cpu/common.c | 2 +-
arch/x86/kernel/dumpstack_64.c | 2 +-
arch/x86/kernel/irq_64.c | 2 +-
arch/x86/kernel/setup_percpu.c | 2 +-
6 files changed, 6 insertions(+), 6 deletions(-)
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -431,7 +431,7 @@ END(irq_entries_start)
*/
movq \old_rsp, PER_CPU_VAR(irq_stack_union + IRQ_STACK_SIZE - 8)
- movq PER_CPU_VAR(irq_stack_ptr), %rsp
+ movq PER_CPU_VAR(hardirq_stack_ptr), %rsp
#ifdef CONFIG_DEBUG_ENTRY
/*
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -396,7 +396,7 @@ static inline unsigned long cpu_kernelmo
return (unsigned long)per_cpu(irq_stack_union.gs_base, cpu);
}
-DECLARE_PER_CPU(char *, irq_stack_ptr);
+DECLARE_PER_CPU(char *, hardirq_stack_ptr);
DECLARE_PER_CPU(unsigned int, irq_count);
extern asmlinkage void ignore_sysret(void);
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1510,7 +1510,7 @@ DEFINE_PER_CPU(struct task_struct *, cur
&init_task;
EXPORT_PER_CPU_SYMBOL(current_task);
-DEFINE_PER_CPU(char *, irq_stack_ptr) =
+DEFINE_PER_CPU(char *, hardirq_stack_ptr) =
init_per_cpu_var(irq_stack_union.irq_stack) + IRQ_STACK_SIZE;
DEFINE_PER_CPU(unsigned int, irq_count) __visible = -1;
--- a/arch/x86/kernel/dumpstack_64.c
+++ b/arch/x86/kernel/dumpstack_64.c
@@ -120,7 +120,7 @@ static bool in_exception_stack(unsigned
static bool in_irq_stack(unsigned long *stack, struct stack_info *info)
{
- unsigned long *end = (unsigned long *)this_cpu_read(irq_stack_ptr);
+ unsigned long *end = (unsigned long *)this_cpu_read(hardirq_stack_ptr);
unsigned long *begin = end - (IRQ_STACK_SIZE / sizeof(long));
/*
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -56,7 +56,7 @@ static inline void stack_overflow_check(
regs->sp <= curbase + THREAD_SIZE)
return;
- irq_stack_top = (u64)__this_cpu_read(irq_stack_ptr);
+ irq_stack_top = (u64)__this_cpu_read(hardirq_stack_ptr);
irq_stack_bottom = irq_stack_top - IRQ_STACK_SIZE + STACK_MARGIN;
if (regs->sp >= irq_stack_bottom && regs->sp <= irq_stack_top)
return;
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -245,7 +245,7 @@ void __init setup_per_cpu_areas(void)
early_per_cpu_map(x86_cpu_to_logical_apicid, cpu);
#endif
#ifdef CONFIG_X86_64
- per_cpu(irq_stack_ptr, cpu) =
+ per_cpu(hardirq_stack_ptr, cpu) =
per_cpu(irq_stack_union.irq_stack, cpu) +
IRQ_STACK_SIZE;
#endif
next prev parent reply other threads:[~2019-04-05 15:11 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-05 15:06 [patch V2 00/29] x86: Add guard pages to exception and interrupt stacks Thomas Gleixner
2019-04-05 15:06 ` [patch V2 01/29] x86/irq/64: Limit IST stack overflow check to #DB stack Thomas Gleixner
2019-04-05 15:07 ` [patch V2 02/29] x86/dumpstack: Fix off-by-one errors in stack identification Thomas Gleixner
2019-04-05 15:44 ` Sean Christopherson
2019-04-05 15:07 ` [patch V2 03/29] x86/irq/64: Remove a hardcoded irq_stack_union access Thomas Gleixner
2019-04-05 16:37 ` Sean Christopherson
2019-04-05 16:38 ` Sean Christopherson
2019-04-05 17:18 ` Josh Poimboeuf
2019-04-05 17:47 ` Thomas Gleixner
2019-04-05 15:07 ` [patch V2 04/29] x86/irq/64: Sanitize the top/bottom confusion Thomas Gleixner
2019-04-05 16:54 ` Sean Christopherson
2019-04-05 15:07 ` [patch V2 05/29] x86/idt: Remove unused macro SISTG Thomas Gleixner
2019-04-05 15:07 ` [patch V2 06/29] x86/exceptions: Remove unused stack defines on 32bit Thomas Gleixner
2019-04-05 15:07 ` [patch V2 07/29] x86/exceptions: Make IST index zero based Thomas Gleixner
2019-04-05 18:59 ` Sean Christopherson
2019-04-05 15:07 ` [patch V2 08/29] x86/cpu_entry_area: Cleanup setup functions Thomas Gleixner
2019-04-05 19:25 ` Sean Christopherson
2019-04-05 15:07 ` [patch V2 09/29] x86/exceptions: Add structs for exception stacks Thomas Gleixner
2019-04-05 20:48 ` Sean Christopherson
2019-04-05 20:50 ` Sean Christopherson
2019-04-05 21:00 ` Thomas Gleixner
2019-04-05 15:07 ` [patch V2 10/29] x86/cpu_entry_area: Prepare for IST guard pages Thomas Gleixner
2019-04-05 15:07 ` [patch V2 11/29] x86/cpu_entry_area: Provide exception stack accessor Thomas Gleixner
2019-04-05 15:07 ` [patch V2 12/29] x86/traps: Use cpu_entry_area instead of orig_ist Thomas Gleixner
2019-04-05 15:07 ` [patch V2 13/29] x86/irq/64: Use cpu entry area " Thomas Gleixner
2019-04-05 15:07 ` [patch V2 14/29] x86/dumpstack/64: Use cpu_entry_area " Thomas Gleixner
2019-04-05 15:07 ` [patch V2 15/29] x86/cpu: Prepare TSS.IST setup for guard pages Thomas Gleixner
2019-04-05 15:07 ` [patch V2 16/29] x86/cpu: Remove orig_ist array Thomas Gleixner
2019-04-05 15:07 ` [patch V2 17/29] x86/exceptions: Disconnect IST index and stack order Thomas Gleixner
2019-04-05 21:57 ` Josh Poimboeuf
2019-04-05 22:00 ` Thomas Gleixner
2019-04-05 15:07 ` [patch V2 18/29] x86/exceptions: Enable IST guard pages Thomas Gleixner
2019-04-05 15:07 ` [patch V2 19/29] x86/exceptions: Split debug IST stack Thomas Gleixner
2019-04-05 20:55 ` Sean Christopherson
2019-04-05 21:01 ` Thomas Gleixner
2019-04-05 15:07 ` [patch V2 20/29] x86/dumpstack/64: Speedup in_exception_stack() Thomas Gleixner
2019-04-05 21:55 ` Josh Poimboeuf
2019-04-05 21:56 ` Thomas Gleixner
2019-04-05 15:07 ` [patch V2 21/29] x86/irq/32: Define IRQ_STACK_SIZE Thomas Gleixner
2019-04-05 15:07 ` [patch V2 22/29] x86/irq/32: Make irq stack a character array Thomas Gleixner
2019-04-05 15:07 ` [patch V2 23/29] x86/irq/32: Rename hard/softirq_stack to hard/softirq_stack_ptr Thomas Gleixner
2019-04-05 15:07 ` Thomas Gleixner [this message]
2019-04-05 15:07 ` [patch V2 25/29] x86/irq/32: Invoke irq_ctx_init() from init_IRQ() Thomas Gleixner
2019-04-05 15:27 ` Juergen Gross
2019-04-05 15:07 ` [patch V2 26/29] x86/irq/32: Handle irq stack allocation failure proper Thomas Gleixner
2019-04-05 15:07 ` [patch V2 27/29] x86/irq/64: Split the IRQ stack into its own pages Thomas Gleixner
2019-04-05 15:07 ` [patch V2 28/29] x86/irq/64: Remap the IRQ stack with guard pages Thomas Gleixner
2019-04-07 4:56 ` Andy Lutomirski
2019-04-07 6:08 ` Thomas Gleixner
2019-04-07 9:28 ` Andy Lutomirski
2019-04-07 9:34 ` Thomas Gleixner
2019-04-07 14:03 ` Andy Lutomirski
2019-04-07 22:44 ` Thomas Gleixner
2019-04-08 2:23 ` Andy Lutomirski
2019-04-08 6:46 ` Thomas Gleixner
2019-04-08 16:18 ` Andy Lutomirski
2019-04-08 16:36 ` Josh Poimboeuf
2019-04-08 16:44 ` Thomas Gleixner
2019-04-08 18:19 ` Thomas Gleixner
2019-04-05 15:07 ` [patch V2 29/29] x86/irq/64: Remove stack overflow debug code Thomas Gleixner
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