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Kernel: Remove some unused cruft in Arch/i386/CPU.h

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This commit is contained in:
Andreas Kling 2021-02-25 09:11:55 +01:00
parent edf9d07d3f
commit a0f4e50bef
1 changed files with 1 additions and 67 deletions
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68
Kernel/Arch/i386/CPU.h
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@ -281,8 +281,6 @@ void register_interrupt_handler(u8 number, void (*f)());
void register_user_callable_interrupt_handler(u8 number, void (*f)());
GenericInterruptHandler& get_interrupt_handler(u8 interrupt_number);
void register_generic_interrupt_handler(u8 number, GenericInterruptHandler&);
void replace_single_handler_with_shared(GenericInterruptHandler&);
void replace_shared_handler_with_single(GenericInterruptHandler&);
void unregister_generic_interrupt_handler(u8 number, GenericInterruptHandler&);
void flush_idt();
void load_task_register(u16 selector);
@ -297,8 +295,7 @@ void load_task_register(u16 selector);
: "memory")
#define sti() asm volatile("sti" :: \
: "memory")
#define memory_barrier() asm volatile("" :: \
: "memory")
inline u32 cpu_flags()
{
u32 flags;
@ -361,40 +358,6 @@ inline bool are_interrupts_enabled()
return cpu_flags() & 0x200;
}
class InterruptFlagSaver {
public:
InterruptFlagSaver()
{
m_flags = cpu_flags();
}
~InterruptFlagSaver()
{
if (m_flags & 0x200)
sti();
else
cli();
}
private:
u32 m_flags;
};
inline bool cli_and_save_interrupt_flag()
{
u32 flags = cpu_flags();
cli();
return flags & 0x200;
}
inline void restore_interrupt_flag(bool flag)
{
if (flag)
sti();
else
cli();
}
class InterruptDisabler {
public:
InterruptDisabler()
@ -577,35 +540,6 @@ inline u64 read_tsc()
return ((u64)msw << 32) | lsw;
}
struct Stopwatch {
union SplitQword {
struct {
uint32_t lsw;
uint32_t msw;
};
uint64_t qw { 0 };
};
public:
Stopwatch(const char* name)
: m_name(name)
{
read_tsc(m_start.lsw, m_start.msw);
}
~Stopwatch()
{
SplitQword end;
read_tsc(end.lsw, end.msw);
uint64_t diff = end.qw - m_start.qw;
dbgln("Stopwatch({}): {} ticks", m_name, diff);
}
private:
const char* m_name { nullptr };
SplitQword m_start;
};
// FIXME: This can't hold every CPU feature as-is.
enum class CPUFeature : u32 {
NX = (1 << 0),