67 	rt_uint32_t value;  in cache_enable()  local
71 		mrc p15, 0, value, c1, c0, 0  in cache_enable()
72 		orr value, value, bit  in cache_enable()
73 		mcr p15, 0, value, c1, c0, 0  in cache_enable()
79 	rt_uint32_t value;  in cache_disable()  local
83 		mrc p15, 0, value, c1, c0, 0  in cache_disable()
84 		bic value, value, bit  in cache_disable()
85 		mcr p15, 0, value, c1, c0, 0  in cache_disable()
179  * in value and return the index of that bit.
181  * Bits are numbered starting at 1 (the least significant bit).  A return value of 
184  * @return return the index of the first bit set. If value is 0, then this function 
188 int __rt_ffs(int value)  in __rt_ffs()  argument
192 	if (value == 0)  in __rt_ffs()
193 		return value;  in __rt_ffs()
197 		rsb x, value, #0  in __rt_ffs()
198 		and x, x, value  in __rt_ffs()
206 int __rt_ffs(int value)  in __rt_ffs()  argument
208 	if (value == 0)  in __rt_ffs()
209 		return value;  in __rt_ffs()
217 int __rt_ffs(int value)  in __rt_ffs()  argument
219 	if (value == 0)  in __rt_ffs()
220 		return value;  in __rt_ffs()
222 	value &= (-value);  in __rt_ffs()
223 	asm ("clz %0, %1": "=r"(value) :"r"(value));  in __rt_ffs()
225 	return (32 - value);  in __rt_ffs()