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authorThomas Gleixner <tglx@linutronix.de>2019-04-14 18:00:02 +0200
committerBorislav Petkov <bp@suse.de>2019-04-17 15:27:10 +0200
commit758a2e312228410f2f5092ade558109e93dc3ee8 (patch)
tree45bf1dbf3b86874b3fb433f8c4f25459be1e3962 /arch/x86
parenta754fe2b76d1d6bce7069657bba975034f3ad961 (diff)
downloadlinux-stericsson-758a2e312228410f2f5092ade558109e93dc3ee8.tar.gz
x86/irq/64: Rename irq_stack_ptr to hardirq_stack_ptr
Preparatory patch to share code with 32bit. No functional changes. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: "Chang S. Bae" <chang.seok.bae@intel.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Nicolai Stange <nstange@suse.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Pingfan Liu <kernelfans@gmail.com> Cc: Sean Christopherson <sean.j.christopherson@intel.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/20190414160145.912584074@linutronix.de
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/entry/entry_64.S2
-rw-r--r--arch/x86/include/asm/processor.h2
-rw-r--r--arch/x86/kernel/cpu/common.c2
-rw-r--r--arch/x86/kernel/dumpstack_64.c2
-rw-r--r--arch/x86/kernel/irq_64.c2
-rw-r--r--arch/x86/kernel/setup_percpu.c2
6 files changed, 6 insertions, 6 deletions
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index ee649f1f279e..726abbe6c6d8 100644
--- 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
/*
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 0b7d866a1ad5..5e3dd4e2136d 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -396,7 +396,7 @@ static inline unsigned long cpu_kernelmode_gs_base(int cpu)
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);
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 88cab45707a9..13ec72bb8f36 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1510,7 +1510,7 @@ DEFINE_PER_CPU(struct task_struct *, current_task) ____cacheline_aligned =
&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;
diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
index f356d3ea0c70..753b8cfe8b8a 100644
--- a/arch/x86/kernel/dumpstack_64.c
+++ b/arch/x86/kernel/dumpstack_64.c
@@ -120,7 +120,7 @@ static bool in_exception_stack(unsigned long *stack, struct stack_info *info)
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));
/*
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index 7eb6f8d11bfd..f0c7356c8969 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -56,7 +56,7 @@ static inline void stack_overflow_check(struct pt_regs *regs)
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;
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index 4bf46575568a..657343ecc2da 100644
--- 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