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-rw-r--r--arch/mips/include/asm/gic.h188
1 files changed, 18 insertions, 170 deletions
diff --git a/arch/mips/include/asm/gic.h b/arch/mips/include/asm/gic.h
index a8f57341f123..9b9436a4d816 100644
--- a/arch/mips/include/asm/gic.h
+++ b/arch/mips/include/asm/gic.h
@@ -12,7 +12,6 @@
12#define _ASM_GICREGS_H 12#define _ASM_GICREGS_H
13 13
14#undef GICISBYTELITTLEENDIAN 14#undef GICISBYTELITTLEENDIAN
15#define GICISWORDLITTLEENDIAN
16 15
17/* Constants */ 16/* Constants */
18#define GIC_POL_POS 1 17#define GIC_POL_POS 1
@@ -20,11 +19,7 @@
20#define GIC_TRIG_EDGE 1 19#define GIC_TRIG_EDGE 1
21#define GIC_TRIG_LEVEL 0 20#define GIC_TRIG_LEVEL 0
22 21
23#ifdef CONFIG_SMP
24#define GIC_NUM_INTRS (24 + NR_CPUS * 2) 22#define GIC_NUM_INTRS (24 + NR_CPUS * 2)
25#else
26#define GIC_NUM_INTRS 32
27#endif
28 23
29#define MSK(n) ((1 << (n)) - 1) 24#define MSK(n) ((1 << (n)) - 1)
30#define REG32(addr) (*(volatile unsigned int *) (addr)) 25#define REG32(addr) (*(volatile unsigned int *) (addr))
@@ -70,13 +65,13 @@
70#define USM_VISIBLE_SECTION_SIZE 0x10000 65#define USM_VISIBLE_SECTION_SIZE 0x10000
71 66
72/* Register Map for Shared Section */ 67/* Register Map for Shared Section */
73#if defined(CONFIG_CPU_LITTLE_ENDIAN) || defined(GICISWORDLITTLEENDIAN)
74 68
75#define GIC_SH_CONFIG_OFS 0x0000 69#define GIC_SH_CONFIG_OFS 0x0000
76 70
77/* Shared Global Counter */ 71/* Shared Global Counter */
78#define GIC_SH_COUNTER_31_00_OFS 0x0010 72#define GIC_SH_COUNTER_31_00_OFS 0x0010
79#define GIC_SH_COUNTER_63_32_OFS 0x0014 73#define GIC_SH_COUNTER_63_32_OFS 0x0014
74#define GIC_SH_REVISIONID_OFS 0x0020
80 75
81/* Interrupt Polarity */ 76/* Interrupt Polarity */
82#define GIC_SH_POL_31_0_OFS 0x0100 77#define GIC_SH_POL_31_0_OFS 0x0100
@@ -164,24 +159,31 @@
164 (GIC_SH_INTR_MAP_TO_VPE_BASE_OFS + (32 * (intr)) + (((vpe) / 32) * 4)) 159 (GIC_SH_INTR_MAP_TO_VPE_BASE_OFS + (32 * (intr)) + (((vpe) / 32) * 4))
165#define GIC_SH_MAP_TO_VPE_REG_BIT(vpe) (1 << ((vpe) % 32)) 160#define GIC_SH_MAP_TO_VPE_REG_BIT(vpe) (1 << ((vpe) % 32))
166 161
162/* Convert an interrupt number to a byte offset/bit for multi-word registers */
163#define GIC_INTR_OFS(intr) (((intr) / 32)*4)
164#define GIC_INTR_BIT(intr) ((intr) % 32)
165
167/* Polarity : Reset Value is always 0 */ 166/* Polarity : Reset Value is always 0 */
168#define GIC_SH_SET_POLARITY_OFS 0x0100 167#define GIC_SH_SET_POLARITY_OFS 0x0100
169#define GIC_SET_POLARITY(intr, pol) \ 168#define GIC_SET_POLARITY(intr, pol) \
170 GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_POLARITY_OFS + (((intr) / 32) * 4)), (pol) << ((intr) % 32)) 169 GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_POLARITY_OFS + \
170 GIC_INTR_OFS(intr)), (pol) << GIC_INTR_BIT(intr))
171 171
172/* Triggering : Reset Value is always 0 */ 172/* Triggering : Reset Value is always 0 */
173#define GIC_SH_SET_TRIGGER_OFS 0x0180 173#define GIC_SH_SET_TRIGGER_OFS 0x0180
174#define GIC_SET_TRIGGER(intr, trig) \ 174#define GIC_SET_TRIGGER(intr, trig) \
175 GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_TRIGGER_OFS + (((intr) / 32) * 4)), (trig) << ((intr) % 32)) 175 GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_TRIGGER_OFS + \
176 GIC_INTR_OFS(intr)), (trig) << GIC_INTR_BIT(intr))
176 177
177/* Mask manipulation */ 178/* Mask manipulation */
178#define GIC_SH_SMASK_OFS 0x0380 179#define GIC_SH_SMASK_OFS 0x0380
179#define GIC_SET_INTR_MASK(intr, val) \ 180#define GIC_SET_INTR_MASK(intr) \
180 GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_SMASK_OFS + (((intr) / 32) * 4)), ((val) << ((intr) % 32))) 181 GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_SMASK_OFS + \
181 182 GIC_INTR_OFS(intr)), 1 << GIC_INTR_BIT(intr))
182#define GIC_SH_RMASK_OFS 0x0300 183#define GIC_SH_RMASK_OFS 0x0300
183#define GIC_CLR_INTR_MASK(intr, val) \ 184#define GIC_CLR_INTR_MASK(intr) \
184 GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_RMASK_OFS + (((intr) / 32) * 4)), ((val) << ((intr) % 32))) 185 GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_RMASK_OFS + \
186 GIC_INTR_OFS(intr)), 1 << GIC_INTR_BIT(intr))
185 187
186/* Register Map for Local Section */ 188/* Register Map for Local Section */
187#define GIC_VPE_CTL_OFS 0x0000 189#define GIC_VPE_CTL_OFS 0x0000
@@ -219,161 +221,6 @@
219#define GIC_UMV_SH_COUNTER_31_00_OFS 0x0000 221#define GIC_UMV_SH_COUNTER_31_00_OFS 0x0000
220#define GIC_UMV_SH_COUNTER_63_32_OFS 0x0004 222#define GIC_UMV_SH_COUNTER_63_32_OFS 0x0004
221 223
222#else /* CONFIG_CPU_BIG_ENDIAN */
223
224#define GIC_SH_CONFIG_OFS 0x0000
225
226/* Shared Global Counter */
227#define GIC_SH_COUNTER_31_00_OFS 0x0014
228#define GIC_SH_COUNTER_63_32_OFS 0x0010
229
230/* Interrupt Polarity */
231#define GIC_SH_POL_31_0_OFS 0x0104
232#define GIC_SH_POL_63_32_OFS 0x0100
233#define GIC_SH_POL_95_64_OFS 0x010c
234#define GIC_SH_POL_127_96_OFS 0x0108
235#define GIC_SH_POL_159_128_OFS 0x0114
236#define GIC_SH_POL_191_160_OFS 0x0110
237#define GIC_SH_POL_223_192_OFS 0x011c
238#define GIC_SH_POL_255_224_OFS 0x0118
239
240/* Edge/Level Triggering */
241#define GIC_SH_TRIG_31_0_OFS 0x0184
242#define GIC_SH_TRIG_63_32_OFS 0x0180
243#define GIC_SH_TRIG_95_64_OFS 0x018c
244#define GIC_SH_TRIG_127_96_OFS 0x0188
245#define GIC_SH_TRIG_159_128_OFS 0x0194
246#define GIC_SH_TRIG_191_160_OFS 0x0190
247#define GIC_SH_TRIG_223_192_OFS 0x019c
248#define GIC_SH_TRIG_255_224_OFS 0x0198
249
250/* Dual Edge Triggering */
251#define GIC_SH_DUAL_31_0_OFS 0x0204
252#define GIC_SH_DUAL_63_32_OFS 0x0200
253#define GIC_SH_DUAL_95_64_OFS 0x020c
254#define GIC_SH_DUAL_127_96_OFS 0x0208
255#define GIC_SH_DUAL_159_128_OFS 0x0214
256#define GIC_SH_DUAL_191_160_OFS 0x0210
257#define GIC_SH_DUAL_223_192_OFS 0x021c
258#define GIC_SH_DUAL_255_224_OFS 0x0218
259
260/* Set/Clear corresponding bit in Edge Detect Register */
261#define GIC_SH_WEDGE_OFS 0x0280
262
263/* Reset Mask - Disables Interrupt */
264#define GIC_SH_RMASK_31_0_OFS 0x0304
265#define GIC_SH_RMASK_63_32_OFS 0x0300
266#define GIC_SH_RMASK_95_64_OFS 0x030c
267#define GIC_SH_RMASK_127_96_OFS 0x0308
268#define GIC_SH_RMASK_159_128_OFS 0x0314
269#define GIC_SH_RMASK_191_160_OFS 0x0310
270#define GIC_SH_RMASK_223_192_OFS 0x031c
271#define GIC_SH_RMASK_255_224_OFS 0x0318
272
273/* Set Mask (WO) - Enables Interrupt */
274#define GIC_SH_SMASK_31_0_OFS 0x0384
275#define GIC_SH_SMASK_63_32_OFS 0x0380
276#define GIC_SH_SMASK_95_64_OFS 0x038c
277#define GIC_SH_SMASK_127_96_OFS 0x0388
278#define GIC_SH_SMASK_159_128_OFS 0x0394
279#define GIC_SH_SMASK_191_160_OFS 0x0390
280#define GIC_SH_SMASK_223_192_OFS 0x039c
281#define GIC_SH_SMASK_255_224_OFS 0x0398
282
283/* Global Interrupt Mask Register (RO) - Bit Set == Interrupt enabled */
284#define GIC_SH_MASK_31_0_OFS 0x0404
285#define GIC_SH_MASK_63_32_OFS 0x0400
286#define GIC_SH_MASK_95_64_OFS 0x040c
287#define GIC_SH_MASK_127_96_OFS 0x0408
288#define GIC_SH_MASK_159_128_OFS 0x0414
289#define GIC_SH_MASK_191_160_OFS 0x0410
290#define GIC_SH_MASK_223_192_OFS 0x041c
291#define GIC_SH_MASK_255_224_OFS 0x0418
292
293/* Pending Global Interrupts (RO) */
294#define GIC_SH_PEND_31_0_OFS 0x0484
295#define GIC_SH_PEND_63_32_OFS 0x0480
296#define GIC_SH_PEND_95_64_OFS 0x048c
297#define GIC_SH_PEND_127_96_OFS 0x0488
298#define GIC_SH_PEND_159_128_OFS 0x0494
299#define GIC_SH_PEND_191_160_OFS 0x0490
300#define GIC_SH_PEND_223_192_OFS 0x049c
301#define GIC_SH_PEND_255_224_OFS 0x0498
302
303#define GIC_SH_INTR_MAP_TO_PIN_BASE_OFS 0x0500
304
305/* Maps Interrupt X to a Pin */
306#define GIC_SH_MAP_TO_PIN(intr) \
307 (GIC_SH_INTR_MAP_TO_PIN_BASE_OFS + (4 * intr))
308
309#define GIC_SH_INTR_MAP_TO_VPE_BASE_OFS 0x2004
310
311/*
312 * Maps Interrupt X to a VPE. This is more complex than the LE case, as
313 * odd and even registers need to be transposed. It does work - trust me!
314 */
315#define GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe) \
316 (GIC_SH_INTR_MAP_TO_VPE_BASE_OFS + (32 * (intr)) + \
317 (((((vpe) / 32) ^ 1) - 1) * 4))
318#define GIC_SH_MAP_TO_VPE_REG_BIT(vpe) (1 << ((vpe) % 32))
319
320/* Polarity */
321#define GIC_SH_SET_POLARITY_OFS 0x0100
322#define GIC_SET_POLARITY(intr, pol) \
323 GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_POLARITY_OFS + 4 + (((((intr) / 32) ^ 1) - 1) * 4)), (pol) << ((intr) % 32))
324
325/* Triggering */
326#define GIC_SH_SET_TRIGGER_OFS 0x0180
327#define GIC_SET_TRIGGER(intr, trig) \
328 GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_TRIGGER_OFS + 4 + (((((intr) / 32) ^ 1) - 1) * 4)), (trig) << ((intr) % 32))
329
330/* Mask manipulation */
331#define GIC_SH_SMASK_OFS 0x0380
332#define GIC_SET_INTR_MASK(intr, val) \
333 GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_SMASK_OFS + 4 + (((((intr) / 32) ^ 1) - 1) * 4)), ((val) << ((intr) % 32)))
334
335#define GIC_SH_RMASK_OFS 0x0300
336#define GIC_CLR_INTR_MASK(intr, val) \
337 GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_RMASK_OFS + 4 + (((((intr) / 32) ^ 1) - 1) * 4)), ((val) << ((intr) % 32)))
338
339/* Register Map for Local Section */
340#define GIC_VPE_CTL_OFS 0x0000
341#define GIC_VPE_PEND_OFS 0x0004
342#define GIC_VPE_MASK_OFS 0x0008
343#define GIC_VPE_RMASK_OFS 0x000c
344#define GIC_VPE_SMASK_OFS 0x0010
345#define GIC_VPE_WD_MAP_OFS 0x0040
346#define GIC_VPE_COMPARE_MAP_OFS 0x0044
347#define GIC_VPE_TIMER_MAP_OFS 0x0048
348#define GIC_VPE_PERFCTR_MAP_OFS 0x0050
349#define GIC_VPE_SWINT0_MAP_OFS 0x0054
350#define GIC_VPE_SWINT1_MAP_OFS 0x0058
351#define GIC_VPE_OTHER_ADDR_OFS 0x0080
352#define GIC_VPE_WD_CONFIG0_OFS 0x0090
353#define GIC_VPE_WD_COUNT0_OFS 0x0094
354#define GIC_VPE_WD_INITIAL0_OFS 0x0098
355#define GIC_VPE_COMPARE_LO_OFS 0x00a4
356#define GIC_VPE_COMPARE_HI_OFS 0x00a0
357
358#define GIC_VPE_EIC_SHADOW_SET_BASE 0x0100
359#define GIC_VPE_EIC_SS(intr) \
360 (GIC_EIC_SHADOW_SET_BASE + (4 * intr))
361
362#define GIC_VPE_EIC_VEC_BASE 0x0800
363#define GIC_VPE_EIC_VEC(intr) \
364 (GIC_VPE_EIC_VEC_BASE + (4 * intr))
365
366#define GIC_VPE_TENABLE_NMI_OFS 0x1000
367#define GIC_VPE_TENABLE_YQ_OFS 0x1004
368#define GIC_VPE_TENABLE_INT_31_0_OFS 0x1080
369#define GIC_VPE_TENABLE_INT_63_32_OFS 0x1084
370
371/* User Mode Visible Section Register Map */
372#define GIC_UMV_SH_COUNTER_31_00_OFS 0x0004
373#define GIC_UMV_SH_COUNTER_63_32_OFS 0x0000
374
375#endif /* !LE */
376
377/* Masks */ 224/* Masks */
378#define GIC_SH_CONFIG_COUNTSTOP_SHF 28 225#define GIC_SH_CONFIG_COUNTSTOP_SHF 28
379#define GIC_SH_CONFIG_COUNTSTOP_MSK (MSK(1) << GIC_SH_CONFIG_COUNTSTOP_SHF) 226#define GIC_SH_CONFIG_COUNTSTOP_MSK (MSK(1) << GIC_SH_CONFIG_COUNTSTOP_SHF)
@@ -473,12 +320,13 @@ struct gic_intrmask_regs {
473 * in building ipi_map. 320 * in building ipi_map.
474 */ 321 */
475struct gic_intr_map { 322struct gic_intr_map {
476 unsigned int intrnum; /* Ext Intr Num */
477 unsigned int cpunum; /* Directed to this CPU */ 323 unsigned int cpunum; /* Directed to this CPU */
478 unsigned int pin; /* Directed to this Pin */ 324 unsigned int pin; /* Directed to this Pin */
479 unsigned int polarity; /* Polarity : +/- */ 325 unsigned int polarity; /* Polarity : +/- */
480 unsigned int trigtype; /* Trigger : Edge/Levl */ 326 unsigned int trigtype; /* Trigger : Edge/Levl */
481 unsigned int ipiflag; /* Is used for IPI ? */ 327 unsigned int flags; /* Misc flags */
328#define GIC_FLAG_IPI 0x01
329#define GIC_FLAG_TRANSPARENT 0x02
482}; 330};
483 331
484extern void gic_init(unsigned long gic_base_addr, 332extern void gic_init(unsigned long gic_base_addr,