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arm: optimize up_interrupt_context used in armv[6/7/8]-m

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resson:
using percpu storage for g_current_regs or leveraging interrupt status
registers to determine if code is running within an interrupt context can enhance performance.

Signed-off-by: hujun5 <hujun5@xiaomi.com>
This commit is contained in:
hujun5
2024-03-28 09:32:14 +08:00
committed by archer
parent 6a3a32b185
commit 0561b55860
3 changed files with 3 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/arm/include/armv6-m/irq.h
+1 -11
View File
@@ -394,17 +394,7 @@ static inline_function void up_set_current_regs(uint32_t *regs)
noinstrument_function noinstrument_function
static inline_function bool up_interrupt_context(void) static inline_function bool up_interrupt_context(void)
{ {
#ifdef CONFIG_SMP return getipsr() != 0;
irqstate_t flags = up_irq_save();
#endif
bool ret = up_current_regs() != NULL;
#ifdef CONFIG_SMP
up_irq_restore(flags);
#endif
return ret;
} }
/**************************************************************************** /****************************************************************************
arch/arm/include/armv7-m/irq.h
+1 -11
View File
@@ -599,17 +599,7 @@ static inline_function void up_set_current_regs(uint32_t *regs)
noinstrument_function noinstrument_function
static inline_function bool up_interrupt_context(void) static inline_function bool up_interrupt_context(void)
{ {
#ifdef CONFIG_SMP return getipsr() != 0;
irqstate_t flags = up_irq_save();
#endif
bool ret = up_current_regs() != NULL;
#ifdef CONFIG_SMP
up_irq_restore(flags);
#endif
return ret;
} }
/**************************************************************************** /****************************************************************************
arch/arm/include/armv8-m/irq.h
+1 -11
View File
@@ -572,17 +572,7 @@ static inline_function void up_set_current_regs(uint32_t *regs)
noinstrument_function noinstrument_function
static inline_function bool up_interrupt_context(void) static inline_function bool up_interrupt_context(void)
{ {
#ifdef CONFIG_SMP return getipsr() != 0;
irqstate_t flags = up_irq_save();
#endif
bool ret = up_current_regs() != NULL;
#ifdef CONFIG_SMP
up_irq_restore(flags);
#endif
return ret;
} }
/**************************************************************************** /****************************************************************************