WebSVN – HelenOS-historic – Diff – /kernel/trunk/arch/sparc64/include/asm.h



 
/** Read Processor State register.
 *
 * @return Value of PSTATE register.
 */
static inline uint64_t pstate_read(void)
{
    uint64_t v;
   
    __asm__ volatile ("rdpr %%pstate, %0\n" : "=r" (v));
   
    return v;
}
 
/** Write Processor State register.
 *
 * @param v New value of PSTATE register.
 */
static inline void pstate_write(uint64_t v)
{
    __asm__ volatile ("wrpr %0, %1, %%pstate\n" : : "r" (v), "i" (0));
}
 
/** Read TICK_compare Register.
 *
 * @return Value of TICK_comapre register.
 */
static inline uint64_t tick_compare_read(void)
{
    uint64_t v;
   
    __asm__ volatile ("rd %%tick_cmpr, %0\n" : "=r" (v));
   
    return v;
}
 
/** Write TICK_compare Register.
 *
 * @param v New value of TICK_comapre register.
 */
static inline void tick_compare_write(uint64_t v)
{
    __asm__ volatile ("wr %0, %1, %%tick_cmpr\n" : : "r" (v), "i" (0));
}
 
/** Read TICK Register.
 *
 * @return Value of TICK register.
 */
static inline uint64_t tick_read(void)
{
    uint64_t v;
   
    __asm__ volatile ("rdpr %%tick, %0\n" : "=r" (v));
   
    return v;
}
 
/** Write TICK Register.
 *
 * @param v New value of TICK register.
 */
static inline void tick_write(uint64_t v)
{
    __asm__ volatile ("wrpr %0, %1, %%tick\n" : : "r" (v), "i" (0));
}
 
/** Read SOFTINT Register.
 *
 * @return Value of SOFTINT register.
 */
static inline uint64_t softint_read(void)
{
    uint64_t v;
 
    __asm__ volatile ("rd %%softint, %0\n" : "=r" (v));
 
    return v;
}
 
/** Write SOFTINT Register.
 *
 * @param v New value of SOFTINT register.
 */
static inline void softint_write(uint64_t v)
{
    __asm__ volatile ("wr %0, %1, %%softint\n" : : "r" (v), "i" (0));
}
 
/** Write CLEAR_SOFTINT Register.
 *
 * Bits set in CLEAR_SOFTINT register will be cleared in SOFTINT register.
 *
 * @param v New value of CLEAR_SOFTINT register.
 */
static inline void clear_softint_write(uint64_t v)
{
    __asm__ volatile ("wr %0, %1, %%clear_softint\n" : : "r" (v), "i" (0));
}
 
/** Enable interrupts.

 *
 * @return Old interrupt priority level.
 */
static inline ipl_t interrupts_enable(void) {
    pstate_reg_t pstate;
    uint64_t value;
   
    value = pstate_read();
    pstate.value = value;
    pstate.ie = true;
    pstate_write(pstate.value);

 *
 * @return Old interrupt priority level.
 */
static inline ipl_t interrupts_disable(void) {
    pstate_reg_t pstate;
    uint64_t value;
   
    value = pstate_read();
    pstate.value = value;
    pstate.ie = false;
    pstate_write(pstate.value);

 *
 * Return the base address of the current stack.
 * The stack is assumed to be STACK_SIZE bytes long.
 * The stack must start on page boundary.
 */
static inline uintptr_t get_stack_base(void)
{
    uintptr_t v;
   
    __asm__ volatile ("and %%sp, %1, %0\n" : "=r" (v) : "r" (~(STACK_SIZE-1)));
   
    return v;
}
 
/** Read Version Register.
 *
 * @return Value of VER register.
 */
static inline uint64_t ver_read(void)
{
    uint64_t v;
   
    __asm__ volatile ("rdpr %%ver, %0\n" : "=r" (v));
   
    return v;
}
 
/** Read Trap Base Address register.
 *
 * @return Current value in TBA.
 */
static inline uint64_t tba_read(void)
{
    uint64_t v;
   
    __asm__ volatile ("rdpr %%tba, %0\n" : "=r" (v));
   
    return v;
}
 
/** Read Trap Program Counter register.
 *
 * @return Current value in TPC.
 */
static inline uint64_t tpc_read(void)
{
    uint64_t v;
   
    __asm__ volatile ("rdpr %%tpc, %0\n" : "=r" (v));
   
    return v;
}
 
/** Read Trap Level register.
 *
 * @return Current value in TL.
 */
static inline uint64_t tl_read(void)
{
    uint64_t v;
   
    __asm__ volatile ("rdpr %%tl, %0\n" : "=r" (v));
   
    return v;
}
 
/** Write Trap Base Address register.
 *
 * @param v New value of TBA.
 */
static inline void tba_write(uint64_t v)
{
    __asm__ volatile ("wrpr %0, %1, %%tba\n" : : "r" (v), "i" (0));
}
 
/** Load uint64_t from alternate space.
 *
 * @param asi ASI determining the alternate space.
 * @param va Virtual address within the ASI.
 *
 * @return Value read from the virtual address in the specified address space.
 */
static inline uint64_t asi_u64_read(asi_t asi, uintptr_t va)
{
    uint64_t v;
   
    __asm__ volatile ("ldxa [%1] %2, %0\n" : "=r" (v) : "r" (va), "i" (asi));
   
    return v;
}
 
/** Store uint64_t to alternate space.
 *
 * @param asi ASI determining the alternate space.
 * @param va Virtual address within the ASI.
 * @param v Value to be written.
 */
static inline void asi_u64_write(asi_t asi, uintptr_t va, uint64_t v)
{
    __asm__ volatile ("stxa %0, [%1] %2\n" : :  "r" (v), "r" (va), "i" (asi) : "memory");
}
 
 
 
void cpu_halt(void);
void cpu_sleep(void);
void asm_delay_loop(uint32_t t);
 
#endif
 
 /** @}
 */

Rev 1708	Rev 1780
Line 42...	Line 42...
42		42
43	/** Read Processor State register.	43	/** Read Processor State register.
44	*	44	*
45	* @return Value of PSTATE register.	45	* @return Value of PSTATE register.
46	*/	46	*/
47	static inline __u64 pstate_read(void)	47	static inline uint64_t pstate_read(void)
48	{	48	{
49	__u64 v;	49	uint64_t v;
50		50
51	__asm__ volatile ("rdpr %%pstate, %0\n" : "=r" (v));	51	__asm__ volatile ("rdpr %%pstate, %0\n" : "=r" (v));
52		52
53	return v;	53	return v;
54	}	54	}
55		55
56	/** Write Processor State register.	56	/** Write Processor State register.
57	*	57	*
58	* @param v New value of PSTATE register.	58	* @param v New value of PSTATE register.
59	*/	59	*/
60	static inline void pstate_write(__u64 v)	60	static inline void pstate_write(uint64_t v)
61	{	61	{
62	__asm__ volatile ("wrpr %0, %1, %%pstate\n" : : "r" (v), "i" (0));	62	__asm__ volatile ("wrpr %0, %1, %%pstate\n" : : "r" (v), "i" (0));
63	}	63	}
64		64
65	/** Read TICK_compare Register.	65	/** Read TICK_compare Register.
66	*	66	*
67	* @return Value of TICK_comapre register.	67	* @return Value of TICK_comapre register.
68	*/	68	*/
69	static inline __u64 tick_compare_read(void)	69	static inline uint64_t tick_compare_read(void)
70	{	70	{
71	__u64 v;	71	uint64_t v;
72		72
73	__asm__ volatile ("rd %%tick_cmpr, %0\n" : "=r" (v));	73	__asm__ volatile ("rd %%tick_cmpr, %0\n" : "=r" (v));
74		74
75	return v;	75	return v;
76	}	76	}
77		77
78	/** Write TICK_compare Register.	78	/** Write TICK_compare Register.
79	*	79	*
80	* @param v New value of TICK_comapre register.	80	* @param v New value of TICK_comapre register.
81	*/	81	*/
82	static inline void tick_compare_write(__u64 v)	82	static inline void tick_compare_write(uint64_t v)
83	{	83	{
84	__asm__ volatile ("wr %0, %1, %%tick_cmpr\n" : : "r" (v), "i" (0));	84	__asm__ volatile ("wr %0, %1, %%tick_cmpr\n" : : "r" (v), "i" (0));
85	}	85	}
86		86
87	/** Read TICK Register.	87	/** Read TICK Register.
88	*	88	*
89	* @return Value of TICK register.	89	* @return Value of TICK register.
90	*/	90	*/
91	static inline __u64 tick_read(void)	91	static inline uint64_t tick_read(void)
92	{	92	{
93	__u64 v;	93	uint64_t v;
94		94
95	__asm__ volatile ("rdpr %%tick, %0\n" : "=r" (v));	95	__asm__ volatile ("rdpr %%tick, %0\n" : "=r" (v));
96		96
97	return v;	97	return v;
98	}	98	}
99		99
100	/** Write TICK Register.	100	/** Write TICK Register.
101	*	101	*
102	* @param v New value of TICK register.	102	* @param v New value of TICK register.
103	*/	103	*/
104	static inline void tick_write(__u64 v)	104	static inline void tick_write(uint64_t v)
105	{	105	{
106	__asm__ volatile ("wrpr %0, %1, %%tick\n" : : "r" (v), "i" (0));	106	__asm__ volatile ("wrpr %0, %1, %%tick\n" : : "r" (v), "i" (0));
107	}	107	}
108		108
109	/** Read SOFTINT Register.	109	/** Read SOFTINT Register.
110	*	110	*
111	* @return Value of SOFTINT register.	111	* @return Value of SOFTINT register.
112	*/	112	*/
113	static inline __u64 softint_read(void)	113	static inline uint64_t softint_read(void)
114	{	114	{
115	__u64 v;	115	uint64_t v;
116		116
117	__asm__ volatile ("rd %%softint, %0\n" : "=r" (v));	117	__asm__ volatile ("rd %%softint, %0\n" : "=r" (v));
118		118
119	return v;	119	return v;
120	}	120	}
121		121
122	/** Write SOFTINT Register.	122	/** Write SOFTINT Register.
123	*	123	*
124	* @param v New value of SOFTINT register.	124	* @param v New value of SOFTINT register.
125	*/	125	*/
126	static inline void softint_write(__u64 v)	126	static inline void softint_write(uint64_t v)
127	{	127	{
128	__asm__ volatile ("wr %0, %1, %%softint\n" : : "r" (v), "i" (0));	128	__asm__ volatile ("wr %0, %1, %%softint\n" : : "r" (v), "i" (0));
129	}	129	}
130		130
131	/** Write CLEAR_SOFTINT Register.	131	/** Write CLEAR_SOFTINT Register.
132	*	132	*
133	* Bits set in CLEAR_SOFTINT register will be cleared in SOFTINT register.	133	* Bits set in CLEAR_SOFTINT register will be cleared in SOFTINT register.
134	*	134	*
135	* @param v New value of CLEAR_SOFTINT register.	135	* @param v New value of CLEAR_SOFTINT register.
136	*/	136	*/
137	static inline void clear_softint_write(__u64 v)	137	static inline void clear_softint_write(uint64_t v)
138	{	138	{
139	__asm__ volatile ("wr %0, %1, %%clear_softint\n" : : "r" (v), "i" (0));	139	__asm__ volatile ("wr %0, %1, %%clear_softint\n" : : "r" (v), "i" (0));
140	}	140	}
141		141
142	/** Enable interrupts.	142	/** Enable interrupts.
Line 146...	Line 146...
146	*	146	*
147	* @return Old interrupt priority level.	147	* @return Old interrupt priority level.
148	*/	148	*/
149	static inline ipl_t interrupts_enable(void) {	149	static inline ipl_t interrupts_enable(void) {
150	pstate_reg_t pstate;	150	pstate_reg_t pstate;
151	__u64 value;	151	uint64_t value;
152		152
153	value = pstate_read();	153	value = pstate_read();
154	pstate.value = value;	154	pstate.value = value;
155	pstate.ie = true;	155	pstate.ie = true;
156	pstate_write(pstate.value);	156	pstate_write(pstate.value);
Line 165...	Line 165...
165	*	165	*
166	* @return Old interrupt priority level.	166	* @return Old interrupt priority level.
167	*/	167	*/
168	static inline ipl_t interrupts_disable(void) {	168	static inline ipl_t interrupts_disable(void) {
169	pstate_reg_t pstate;	169	pstate_reg_t pstate;
170	__u64 value;	170	uint64_t value;
171		171
172	value = pstate_read();	172	value = pstate_read();
173	pstate.value = value;	173	pstate.value = value;
174	pstate.ie = false;	174	pstate.ie = false;
175	pstate_write(pstate.value);	175	pstate_write(pstate.value);
Line 205...	Line 205...
205	*	205	*
206	* Return the base address of the current stack.	206	* Return the base address of the current stack.
207	* The stack is assumed to be STACK_SIZE bytes long.	207	* The stack is assumed to be STACK_SIZE bytes long.
208	* The stack must start on page boundary.	208	* The stack must start on page boundary.
209	*/	209	*/
210	static inline __address get_stack_base(void)	210	static inline uintptr_t get_stack_base(void)
211	{	211	{
212	__address v;	212	uintptr_t v;
213		213
214	__asm__ volatile ("and %%sp, %1, %0\n" : "=r" (v) : "r" (~(STACK_SIZE-1)));	214	__asm__ volatile ("and %%sp, %1, %0\n" : "=r" (v) : "r" (~(STACK_SIZE-1)));
215		215
216	return v;	216	return v;
217	}	217	}
218		218
219	/** Read Version Register.	219	/** Read Version Register.
220	*	220	*
221	* @return Value of VER register.	221	* @return Value of VER register.
222	*/	222	*/
223	static inline __u64 ver_read(void)	223	static inline uint64_t ver_read(void)
224	{	224	{
225	__u64 v;	225	uint64_t v;
226		226
227	__asm__ volatile ("rdpr %%ver, %0\n" : "=r" (v));	227	__asm__ volatile ("rdpr %%ver, %0\n" : "=r" (v));
228		228
229	return v;	229	return v;
230	}	230	}
231		231
232	/** Read Trap Base Address register.	232	/** Read Trap Base Address register.
233	*	233	*
234	* @return Current value in TBA.	234	* @return Current value in TBA.
235	*/	235	*/
236	static inline __u64 tba_read(void)	236	static inline uint64_t tba_read(void)
237	{	237	{
238	__u64 v;	238	uint64_t v;
239		239
240	__asm__ volatile ("rdpr %%tba, %0\n" : "=r" (v));	240	__asm__ volatile ("rdpr %%tba, %0\n" : "=r" (v));
241		241
242	return v;	242	return v;
243	}	243	}
244		244
245	/** Read Trap Program Counter register.	245	/** Read Trap Program Counter register.
246	*	246	*
247	* @return Current value in TPC.	247	* @return Current value in TPC.
248	*/	248	*/
249	static inline __u64 tpc_read(void)	249	static inline uint64_t tpc_read(void)
250	{	250	{
251	__u64 v;	251	uint64_t v;
252		252
253	__asm__ volatile ("rdpr %%tpc, %0\n" : "=r" (v));	253	__asm__ volatile ("rdpr %%tpc, %0\n" : "=r" (v));
254		254
255	return v;	255	return v;
256	}	256	}
257		257
258	/** Read Trap Level register.	258	/** Read Trap Level register.
259	*	259	*
260	* @return Current value in TL.	260	* @return Current value in TL.
261	*/	261	*/
262	static inline __u64 tl_read(void)	262	static inline uint64_t tl_read(void)
263	{	263	{
264	__u64 v;	264	uint64_t v;
265		265
266	__asm__ volatile ("rdpr %%tl, %0\n" : "=r" (v));	266	__asm__ volatile ("rdpr %%tl, %0\n" : "=r" (v));
267		267
268	return v;	268	return v;
269	}	269	}
270		270
271	/** Write Trap Base Address register.	271	/** Write Trap Base Address register.
272	*	272	*
273	* @param v New value of TBA.	273	* @param v New value of TBA.
274	*/	274	*/
275	static inline void tba_write(__u64 v)	275	static inline void tba_write(uint64_t v)
276	{	276	{
277	__asm__ volatile ("wrpr %0, %1, %%tba\n" : : "r" (v), "i" (0));	277	__asm__ volatile ("wrpr %0, %1, %%tba\n" : : "r" (v), "i" (0));
278	}	278	}
279		279
280	/** Load __u64 from alternate space.	280	/** Load uint64_t from alternate space.
281	*	281	*
282	* @param asi ASI determining the alternate space.	282	* @param asi ASI determining the alternate space.
283	* @param va Virtual address within the ASI.	283	* @param va Virtual address within the ASI.
284	*	284	*
285	* @return Value read from the virtual address in the specified address space.	285	* @return Value read from the virtual address in the specified address space.
286	*/	286	*/
287	static inline __u64 asi_u64_read(asi_t asi, __address va)	287	static inline uint64_t asi_u64_read(asi_t asi, uintptr_t va)
288	{	288	{
289	__u64 v;	289	uint64_t v;
290		290
291	__asm__ volatile ("ldxa [%1] %2, %0\n" : "=r" (v) : "r" (va), "i" (asi));	291	__asm__ volatile ("ldxa [%1] %2, %0\n" : "=r" (v) : "r" (va), "i" (asi));
292		292
293	return v;	293	return v;
294	}	294	}
295		295
296	/** Store __u64 to alternate space.	296	/** Store uint64_t to alternate space.
297	*	297	*
298	* @param asi ASI determining the alternate space.	298	* @param asi ASI determining the alternate space.
299	* @param va Virtual address within the ASI.	299	* @param va Virtual address within the ASI.
300	* @param v Value to be written.	300	* @param v Value to be written.
301	*/	301	*/
302	static inline void asi_u64_write(asi_t asi, __address va, __u64 v)	302	static inline void asi_u64_write(asi_t asi, uintptr_t va, uint64_t v)
303	{	303	{
304	__asm__ volatile ("stxa %0, [%1] %2\n" : : "r" (v), "r" (va), "i" (asi) : "memory");	304	__asm__ volatile ("stxa %0, [%1] %2\n" : : "r" (v), "r" (va), "i" (asi) : "memory");
305	}	305	}
306		306
307		307
308		308
309	void cpu_halt(void);	309	void cpu_halt(void);
310	void cpu_sleep(void);	310	void cpu_sleep(void);
311	void asm_delay_loop(__u32 t);	311	void asm_delay_loop(uint32_t t);
312		312
313	#endif	313	#endif
314		314
315	/** @}	315	/** @}
316	*/	316	*/

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(root)/kernel/trunk/arch/sparc64/include/asm.h – Rev 1708 → 1780