WebSVN – HelenOS-historic – Diff – /kernel/trunk/arch/ia64/include/asm.h



 *
 * Return the base address of the current stack.
 * The stack is assumed to be STACK_SIZE long.
 * The stack must start on page boundary.
 */
static inline uintptr_t get_stack_base(void)
{
    uint64_t v;
 
    __asm__ volatile ("and %0 = %1, r12" : "=r" (v) : "r" (~(STACK_SIZE-1)));
   
    return v;
}
 
/** Return Processor State Register.
 *
 * @return PSR.
 */
static inline uint64_t psr_read(void)
{
    uint64_t v;
   
    __asm__ volatile ("mov %0 = psr\n" : "=r" (v));
   
    return v;
}
 
/** Read IVA (Interruption Vector Address).
 *
 * @return Return location of interruption vector table.
 */
static inline uint64_t iva_read(void)
{
    uint64_t v;
   
    __asm__ volatile ("mov %0 = cr.iva\n" : "=r" (v));
   
    return v;
}
 
/** Write IVA (Interruption Vector Address) register.
 *
 * @param v New location of interruption vector table.
 */
static inline void iva_write(uint64_t v)
{
    __asm__ volatile ("mov cr.iva = %0\n" : : "r" (v));
}
 
 
/** Read IVR (External Interrupt Vector Register).
 *
 * @return Highest priority, pending, unmasked external interrupt vector.
 */
static inline uint64_t ivr_read(void)
{
    uint64_t v;
   
    __asm__ volatile ("mov %0 = cr.ivr\n" : "=r" (v));
   
    return v;
}
 
/** Write ITC (Interval Timer Counter) register.
 *
 * @param v New counter value.
 */
static inline void itc_write(uint64_t v)
{
    __asm__ volatile ("mov ar.itc = %0\n" : : "r" (v));
}
 
/** Read ITC (Interval Timer Counter) register.
 *
 * @return Current counter value.
 */
static inline uint64_t itc_read(void)
{
    uint64_t v;
   
    __asm__ volatile ("mov %0 = ar.itc\n" : "=r" (v));
   
    return v;
}
 
/** Write ITM (Interval Timer Match) register.
 *
 * @param v New match value.
 */
static inline void itm_write(uint64_t v)
{
    __asm__ volatile ("mov cr.itm = %0\n" : : "r" (v));
}
 
/** Read ITM (Interval Timer Match) register.
 *
 * @return Match value.
 */
static inline uint64_t itm_read(void)
{
    uint64_t v;
   
    __asm__ volatile ("mov %0 = cr.itm\n" : "=r" (v));
   
    return v;
}
 
/** Read ITV (Interval Timer Vector) register.
 *
 * @return Current vector and mask bit.
 */
static inline uint64_t itv_read(void)
{
    uint64_t v;
   
    __asm__ volatile ("mov %0 = cr.itv\n" : "=r" (v));
   
    return v;
}
 
/** Write ITV (Interval Timer Vector) register.
 *
 * @param v New vector and mask bit.
 */
static inline void itv_write(uint64_t v)
{
    __asm__ volatile ("mov cr.itv = %0\n" : : "r" (v));
}
 
/** Write EOI (End Of Interrupt) register.
 *
 * @param v This value is ignored.
 */
static inline void eoi_write(uint64_t v)
{
    __asm__ volatile ("mov cr.eoi = %0\n" : : "r" (v));
}
 
/** Read TPR (Task Priority Register).
 *
 * @return Current value of TPR.
 */
static inline uint64_t tpr_read(void)
{
    uint64_t v;
 
    __asm__ volatile ("mov %0 = cr.tpr\n"  : "=r" (v));
   
    return v;
}
 
/** Write TPR (Task Priority Register).
 *
 * @param v New value of TPR.
 */
static inline void tpr_write(uint64_t v)
{
    __asm__ volatile ("mov cr.tpr = %0\n" : : "r" (v));
}
 
/** Disable interrupts.

 *
 * @return Old interrupt priority level.
 */
static ipl_t interrupts_disable(void)
{
    uint64_t v;
   
    __asm__ volatile (
        "mov %0 = psr\n"
        "rsm %1\n"
        : "=r" (v)

 *
 * @return Old interrupt priority level.
 */
static ipl_t interrupts_enable(void)
{
    uint64_t v;
   
    __asm__ volatile (
        "mov %0 = psr\n"
        "ssm %1\n"
        ";;\n"

    __asm__ volatile ("rsm %0\n" : : "i" (PSR_PK_MASK));
}
 
extern void cpu_halt(void);
extern void cpu_sleep(void);
extern void asm_delay_loop(uint32_t t);
 
extern void switch_to_userspace(uintptr_t entry, uintptr_t sp, uintptr_t bsp, uintptr_t uspace_uarg, uint64_t ipsr, uint64_t rsc);
 
#endif
 
 /** @}
 */

Rev 1708	Rev 1780
Line 43...	Line 43...
43	*	43	*
44	* Return the base address of the current stack.	44	* Return the base address of the current stack.
45	* The stack is assumed to be STACK_SIZE long.	45	* The stack is assumed to be STACK_SIZE long.
46	* The stack must start on page boundary.	46	* The stack must start on page boundary.
47	*/	47	*/
48	static inline __address get_stack_base(void)	48	static inline uintptr_t get_stack_base(void)
49	{	49	{
50	__u64 v;	50	uint64_t v;
51		51
52	__asm__ volatile ("and %0 = %1, r12" : "=r" (v) : "r" (~(STACK_SIZE-1)));	52	__asm__ volatile ("and %0 = %1, r12" : "=r" (v) : "r" (~(STACK_SIZE-1)));
53		53
54	return v;	54	return v;
55	}	55	}
56		56
57	/** Return Processor State Register.	57	/** Return Processor State Register.
58	*	58	*
59	* @return PSR.	59	* @return PSR.
60	*/	60	*/
61	static inline __u64 psr_read(void)	61	static inline uint64_t psr_read(void)
62	{	62	{
63	__u64 v;	63	uint64_t v;
64		64
65	__asm__ volatile ("mov %0 = psr\n" : "=r" (v));	65	__asm__ volatile ("mov %0 = psr\n" : "=r" (v));
66		66
67	return v;	67	return v;
68	}	68	}
69		69
70	/** Read IVA (Interruption Vector Address).	70	/** Read IVA (Interruption Vector Address).
71	*	71	*
72	* @return Return location of interruption vector table.	72	* @return Return location of interruption vector table.
73	*/	73	*/
74	static inline __u64 iva_read(void)	74	static inline uint64_t iva_read(void)
75	{	75	{
76	__u64 v;	76	uint64_t v;
77		77
78	__asm__ volatile ("mov %0 = cr.iva\n" : "=r" (v));	78	__asm__ volatile ("mov %0 = cr.iva\n" : "=r" (v));
79		79
80	return v;	80	return v;
81	}	81	}
82		82
83	/** Write IVA (Interruption Vector Address) register.	83	/** Write IVA (Interruption Vector Address) register.
84	*	84	*
85	* @param v New location of interruption vector table.	85	* @param v New location of interruption vector table.
86	*/	86	*/
87	static inline void iva_write(__u64 v)	87	static inline void iva_write(uint64_t v)
88	{	88	{
89	__asm__ volatile ("mov cr.iva = %0\n" : : "r" (v));	89	__asm__ volatile ("mov cr.iva = %0\n" : : "r" (v));
90	}	90	}
91		91
92		92
93	/** Read IVR (External Interrupt Vector Register).	93	/** Read IVR (External Interrupt Vector Register).
94	*	94	*
95	* @return Highest priority, pending, unmasked external interrupt vector.	95	* @return Highest priority, pending, unmasked external interrupt vector.
96	*/	96	*/
97	static inline __u64 ivr_read(void)	97	static inline uint64_t ivr_read(void)
98	{	98	{
99	__u64 v;	99	uint64_t v;
100		100
101	__asm__ volatile ("mov %0 = cr.ivr\n" : "=r" (v));	101	__asm__ volatile ("mov %0 = cr.ivr\n" : "=r" (v));
102		102
103	return v;	103	return v;
104	}	104	}
105		105
106	/** Write ITC (Interval Timer Counter) register.	106	/** Write ITC (Interval Timer Counter) register.
107	*	107	*
108	* @param v New counter value.	108	* @param v New counter value.
109	*/	109	*/
110	static inline void itc_write(__u64 v)	110	static inline void itc_write(uint64_t v)
111	{	111	{
112	__asm__ volatile ("mov ar.itc = %0\n" : : "r" (v));	112	__asm__ volatile ("mov ar.itc = %0\n" : : "r" (v));
113	}	113	}
114		114
115	/** Read ITC (Interval Timer Counter) register.	115	/** Read ITC (Interval Timer Counter) register.
116	*	116	*
117	* @return Current counter value.	117	* @return Current counter value.
118	*/	118	*/
119	static inline __u64 itc_read(void)	119	static inline uint64_t itc_read(void)
120	{	120	{
121	__u64 v;	121	uint64_t v;
122		122
123	__asm__ volatile ("mov %0 = ar.itc\n" : "=r" (v));	123	__asm__ volatile ("mov %0 = ar.itc\n" : "=r" (v));
124		124
125	return v;	125	return v;
126	}	126	}
127		127
128	/** Write ITM (Interval Timer Match) register.	128	/** Write ITM (Interval Timer Match) register.
129	*	129	*
130	* @param v New match value.	130	* @param v New match value.
131	*/	131	*/
132	static inline void itm_write(__u64 v)	132	static inline void itm_write(uint64_t v)
133	{	133	{
134	__asm__ volatile ("mov cr.itm = %0\n" : : "r" (v));	134	__asm__ volatile ("mov cr.itm = %0\n" : : "r" (v));
135	}	135	}
136		136
137	/** Read ITM (Interval Timer Match) register.	137	/** Read ITM (Interval Timer Match) register.
138	*	138	*
139	* @return Match value.	139	* @return Match value.
140	*/	140	*/
141	static inline __u64 itm_read(void)	141	static inline uint64_t itm_read(void)
142	{	142	{
143	__u64 v;	143	uint64_t v;
144		144
145	__asm__ volatile ("mov %0 = cr.itm\n" : "=r" (v));	145	__asm__ volatile ("mov %0 = cr.itm\n" : "=r" (v));
146		146
147	return v;	147	return v;
148	}	148	}
149		149
150	/** Read ITV (Interval Timer Vector) register.	150	/** Read ITV (Interval Timer Vector) register.
151	*	151	*
152	* @return Current vector and mask bit.	152	* @return Current vector and mask bit.
153	*/	153	*/
154	static inline __u64 itv_read(void)	154	static inline uint64_t itv_read(void)
155	{	155	{
156	__u64 v;	156	uint64_t v;
157		157
158	__asm__ volatile ("mov %0 = cr.itv\n" : "=r" (v));	158	__asm__ volatile ("mov %0 = cr.itv\n" : "=r" (v));
159		159
160	return v;	160	return v;
161	}	161	}
162		162
163	/** Write ITV (Interval Timer Vector) register.	163	/** Write ITV (Interval Timer Vector) register.
164	*	164	*
165	* @param v New vector and mask bit.	165	* @param v New vector and mask bit.
166	*/	166	*/
167	static inline void itv_write(__u64 v)	167	static inline void itv_write(uint64_t v)
168	{	168	{
169	__asm__ volatile ("mov cr.itv = %0\n" : : "r" (v));	169	__asm__ volatile ("mov cr.itv = %0\n" : : "r" (v));
170	}	170	}
171		171
172	/** Write EOI (End Of Interrupt) register.	172	/** Write EOI (End Of Interrupt) register.
173	*	173	*
174	* @param v This value is ignored.	174	* @param v This value is ignored.
175	*/	175	*/
176	static inline void eoi_write(__u64 v)	176	static inline void eoi_write(uint64_t v)
177	{	177	{
178	__asm__ volatile ("mov cr.eoi = %0\n" : : "r" (v));	178	__asm__ volatile ("mov cr.eoi = %0\n" : : "r" (v));
179	}	179	}
180		180
181	/** Read TPR (Task Priority Register).	181	/** Read TPR (Task Priority Register).
182	*	182	*
183	* @return Current value of TPR.	183	* @return Current value of TPR.
184	*/	184	*/
185	static inline __u64 tpr_read(void)	185	static inline uint64_t tpr_read(void)
186	{	186	{
187	__u64 v;	187	uint64_t v;
188		188
189	__asm__ volatile ("mov %0 = cr.tpr\n" : "=r" (v));	189	__asm__ volatile ("mov %0 = cr.tpr\n" : "=r" (v));
190		190
191	return v;	191	return v;
192	}	192	}
193		193
194	/** Write TPR (Task Priority Register).	194	/** Write TPR (Task Priority Register).
195	*	195	*
196	* @param v New value of TPR.	196	* @param v New value of TPR.
197	*/	197	*/
198	static inline void tpr_write(__u64 v)	198	static inline void tpr_write(uint64_t v)
199	{	199	{
200	__asm__ volatile ("mov cr.tpr = %0\n" : : "r" (v));	200	__asm__ volatile ("mov cr.tpr = %0\n" : : "r" (v));
201	}	201	}
202		202
203	/** Disable interrupts.	203	/** Disable interrupts.
Line 207...	Line 207...
207	*	207	*
208	* @return Old interrupt priority level.	208	* @return Old interrupt priority level.
209	*/	209	*/
210	static ipl_t interrupts_disable(void)	210	static ipl_t interrupts_disable(void)
211	{	211	{
212	__u64 v;	212	uint64_t v;
213		213
214	__asm__ volatile (	214	__asm__ volatile (
215	"mov %0 = psr\n"	215	"mov %0 = psr\n"
216	"rsm %1\n"	216	"rsm %1\n"
217	: "=r" (v)	217	: "=r" (v)
Line 228...	Line 228...
228	*	228	*
229	* @return Old interrupt priority level.	229	* @return Old interrupt priority level.
230	*/	230	*/
231	static ipl_t interrupts_enable(void)	231	static ipl_t interrupts_enable(void)
232	{	232	{
233	__u64 v;	233	uint64_t v;
234		234
235	__asm__ volatile (	235	__asm__ volatile (
236	"mov %0 = psr\n"	236	"mov %0 = psr\n"
237	"ssm %1\n"	237	"ssm %1\n"
238	";;\n"	238	";;\n"
Line 273...	Line 273...
273	__asm__ volatile ("rsm %0\n" : : "i" (PSR_PK_MASK));	273	__asm__ volatile ("rsm %0\n" : : "i" (PSR_PK_MASK));
274	}	274	}
275		275
276	extern void cpu_halt(void);	276	extern void cpu_halt(void);
277	extern void cpu_sleep(void);	277	extern void cpu_sleep(void);
278	extern void asm_delay_loop(__u32 t);	278	extern void asm_delay_loop(uint32_t t);
279		279
280	extern void switch_to_userspace(__address entry, __address sp, __address bsp, __address uspace_uarg, __u64 ipsr, __u64 rsc);	280	extern void switch_to_userspace(uintptr_t entry, uintptr_t sp, uintptr_t bsp, uintptr_t uspace_uarg, uint64_t ipsr, uint64_t rsc);
281		281
282	#endif	282	#endif
283		283
284	/** @}	284	/** @}
285	*/	285	*/

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(root)/kernel/trunk/arch/ia64/include/asm.h – Rev 1708 → 1780