arch/avr32/include/arch/compiler-gcc.h

Go to the documentation of this file.

#ifndef ARCH_COMPILER_GCC_H_INCLUDED
#define ARCH_COMPILER_GCC_H_INCLUDED

#define avr32_write_sr(x) asm volatile("mtsr 0, %0" :: "r"(x) : "cc")

static inline unsigned long bit_reverse(unsigned long word)
{
        asm("brev       %0" : "=r"(word) : "0"(word));
        return word;
}
#define bit_reverse(word)       bit_reverse(word)

#define avr32_set_sr_bit(x)     __builtin_ssrf(x)

#define avr32_clear_sr_bit(x)   __builtin_csrf(x)

#define cpu_irq_enable()                                \
        do {                                            \
                barrier();                              \
                avr32_clear_sr_bit(SYSREG_SR_GM_BIT);   \
        } while (0)

#define cpu_irq_disable()                               \
        do {                                            \
                avr32_set_sr_bit(SYSREG_SR_GM_BIT);     \
                barrier();                              \
        } while (0)


#endif /* ARCH_COMPILER_GCC_H_INCLUDED */

---