Loading...
Note: File does not exist in v5.4.
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2000, 07 MIPS Technologies, Inc.
7 *
8 * GIC Register Definitions
9 *
10 */
11#ifndef _ASM_GICREGS_H
12#define _ASM_GICREGS_H
13
14#undef GICISBYTELITTLEENDIAN
15
16/* Constants */
17#define GIC_POL_POS 1
18#define GIC_POL_NEG 0
19#define GIC_TRIG_EDGE 1
20#define GIC_TRIG_LEVEL 0
21
22#define GIC_NUM_INTRS (24 + NR_CPUS * 2)
23
24#define MSK(n) ((1 << (n)) - 1)
25#define REG32(addr) (*(volatile unsigned int *) (addr))
26#define REG(base, offs) REG32((unsigned long)(base) + offs##_##OFS)
27#define REGP(base, phys) REG32((unsigned long)(base) + (phys))
28
29/* Accessors */
30#define GIC_REG(segment, offset) \
31 REG32(_gic_base + segment##_##SECTION_OFS + offset##_##OFS)
32#define GIC_REG_ADDR(segment, offset) \
33 REG32(_gic_base + segment##_##SECTION_OFS + offset)
34
35#define GIC_ABS_REG(segment, offset) \
36 (_gic_base + segment##_##SECTION_OFS + offset##_##OFS)
37#define GIC_REG_ABS_ADDR(segment, offset) \
38 (_gic_base + segment##_##SECTION_OFS + offset)
39
40#ifdef GICISBYTELITTLEENDIAN
41#define GICREAD(reg, data) (data) = (reg), (data) = le32_to_cpu(data)
42#define GICWRITE(reg, data) (reg) = cpu_to_le32(data)
43#define GICBIS(reg, bits) \
44 ({unsigned int data; \
45 GICREAD(reg, data); \
46 data |= bits; \
47 GICWRITE(reg, data); \
48 })
49
50#else
51#define GICREAD(reg, data) (data) = (reg)
52#define GICWRITE(reg, data) (reg) = (data)
53#define GICBIS(reg, bits) (reg) |= (bits)
54#endif
55
56
57/* GIC Address Space */
58#define SHARED_SECTION_OFS 0x0000
59#define SHARED_SECTION_SIZE 0x8000
60#define VPE_LOCAL_SECTION_OFS 0x8000
61#define VPE_LOCAL_SECTION_SIZE 0x4000
62#define VPE_OTHER_SECTION_OFS 0xc000
63#define VPE_OTHER_SECTION_SIZE 0x4000
64#define USM_VISIBLE_SECTION_OFS 0x10000
65#define USM_VISIBLE_SECTION_SIZE 0x10000
66
67/* Register Map for Shared Section */
68
69#define GIC_SH_CONFIG_OFS 0x0000
70
71/* Shared Global Counter */
72#define GIC_SH_COUNTER_31_00_OFS 0x0010
73#define GIC_SH_COUNTER_63_32_OFS 0x0014
74#define GIC_SH_REVISIONID_OFS 0x0020
75
76/* Interrupt Polarity */
77#define GIC_SH_POL_31_0_OFS 0x0100
78#define GIC_SH_POL_63_32_OFS 0x0104
79#define GIC_SH_POL_95_64_OFS 0x0108
80#define GIC_SH_POL_127_96_OFS 0x010c
81#define GIC_SH_POL_159_128_OFS 0x0110
82#define GIC_SH_POL_191_160_OFS 0x0114
83#define GIC_SH_POL_223_192_OFS 0x0118
84#define GIC_SH_POL_255_224_OFS 0x011c
85
86/* Edge/Level Triggering */
87#define GIC_SH_TRIG_31_0_OFS 0x0180
88#define GIC_SH_TRIG_63_32_OFS 0x0184
89#define GIC_SH_TRIG_95_64_OFS 0x0188
90#define GIC_SH_TRIG_127_96_OFS 0x018c
91#define GIC_SH_TRIG_159_128_OFS 0x0190
92#define GIC_SH_TRIG_191_160_OFS 0x0194
93#define GIC_SH_TRIG_223_192_OFS 0x0198
94#define GIC_SH_TRIG_255_224_OFS 0x019c
95
96/* Dual Edge Triggering */
97#define GIC_SH_DUAL_31_0_OFS 0x0200
98#define GIC_SH_DUAL_63_32_OFS 0x0204
99#define GIC_SH_DUAL_95_64_OFS 0x0208
100#define GIC_SH_DUAL_127_96_OFS 0x020c
101#define GIC_SH_DUAL_159_128_OFS 0x0210
102#define GIC_SH_DUAL_191_160_OFS 0x0214
103#define GIC_SH_DUAL_223_192_OFS 0x0218
104#define GIC_SH_DUAL_255_224_OFS 0x021c
105
106/* Set/Clear corresponding bit in Edge Detect Register */
107#define GIC_SH_WEDGE_OFS 0x0280
108
109/* Reset Mask - Disables Interrupt */
110#define GIC_SH_RMASK_31_0_OFS 0x0300
111#define GIC_SH_RMASK_63_32_OFS 0x0304
112#define GIC_SH_RMASK_95_64_OFS 0x0308
113#define GIC_SH_RMASK_127_96_OFS 0x030c
114#define GIC_SH_RMASK_159_128_OFS 0x0310
115#define GIC_SH_RMASK_191_160_OFS 0x0314
116#define GIC_SH_RMASK_223_192_OFS 0x0318
117#define GIC_SH_RMASK_255_224_OFS 0x031c
118
119/* Set Mask (WO) - Enables Interrupt */
120#define GIC_SH_SMASK_31_0_OFS 0x0380
121#define GIC_SH_SMASK_63_32_OFS 0x0384
122#define GIC_SH_SMASK_95_64_OFS 0x0388
123#define GIC_SH_SMASK_127_96_OFS 0x038c
124#define GIC_SH_SMASK_159_128_OFS 0x0390
125#define GIC_SH_SMASK_191_160_OFS 0x0394
126#define GIC_SH_SMASK_223_192_OFS 0x0398
127#define GIC_SH_SMASK_255_224_OFS 0x039c
128
129/* Global Interrupt Mask Register (RO) - Bit Set == Interrupt enabled */
130#define GIC_SH_MASK_31_0_OFS 0x0400
131#define GIC_SH_MASK_63_32_OFS 0x0404
132#define GIC_SH_MASK_95_64_OFS 0x0408
133#define GIC_SH_MASK_127_96_OFS 0x040c
134#define GIC_SH_MASK_159_128_OFS 0x0410
135#define GIC_SH_MASK_191_160_OFS 0x0414
136#define GIC_SH_MASK_223_192_OFS 0x0418
137#define GIC_SH_MASK_255_224_OFS 0x041c
138
139/* Pending Global Interrupts (RO) */
140#define GIC_SH_PEND_31_0_OFS 0x0480
141#define GIC_SH_PEND_63_32_OFS 0x0484
142#define GIC_SH_PEND_95_64_OFS 0x0488
143#define GIC_SH_PEND_127_96_OFS 0x048c
144#define GIC_SH_PEND_159_128_OFS 0x0490
145#define GIC_SH_PEND_191_160_OFS 0x0494
146#define GIC_SH_PEND_223_192_OFS 0x0498
147#define GIC_SH_PEND_255_224_OFS 0x049c
148
149#define GIC_SH_INTR_MAP_TO_PIN_BASE_OFS 0x0500
150
151/* Maps Interrupt X to a Pin */
152#define GIC_SH_MAP_TO_PIN(intr) \
153 (GIC_SH_INTR_MAP_TO_PIN_BASE_OFS + (4 * intr))
154
155#define GIC_SH_INTR_MAP_TO_VPE_BASE_OFS 0x2000
156
157/* Maps Interrupt X to a VPE */
158#define GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe) \
159 (GIC_SH_INTR_MAP_TO_VPE_BASE_OFS + (32 * (intr)) + (((vpe) / 32) * 4))
160#define GIC_SH_MAP_TO_VPE_REG_BIT(vpe) (1 << ((vpe) % 32))
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
166/* Polarity : Reset Value is always 0 */
167#define GIC_SH_SET_POLARITY_OFS 0x0100
168#define GIC_SET_POLARITY(intr, pol) \
169 GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_POLARITY_OFS + \
170 GIC_INTR_OFS(intr)), (pol) << GIC_INTR_BIT(intr))
171
172/* Triggering : Reset Value is always 0 */
173#define GIC_SH_SET_TRIGGER_OFS 0x0180
174#define GIC_SET_TRIGGER(intr, trig) \
175 GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_TRIGGER_OFS + \
176 GIC_INTR_OFS(intr)), (trig) << GIC_INTR_BIT(intr))
177
178/* Mask manipulation */
179#define GIC_SH_SMASK_OFS 0x0380
180#define GIC_SET_INTR_MASK(intr) \
181 GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_SMASK_OFS + \
182 GIC_INTR_OFS(intr)), 1 << GIC_INTR_BIT(intr))
183#define GIC_SH_RMASK_OFS 0x0300
184#define GIC_CLR_INTR_MASK(intr) \
185 GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_RMASK_OFS + \
186 GIC_INTR_OFS(intr)), 1 << GIC_INTR_BIT(intr))
187
188/* Register Map for Local Section */
189#define GIC_VPE_CTL_OFS 0x0000
190#define GIC_VPE_PEND_OFS 0x0004
191#define GIC_VPE_MASK_OFS 0x0008
192#define GIC_VPE_RMASK_OFS 0x000c
193#define GIC_VPE_SMASK_OFS 0x0010
194#define GIC_VPE_WD_MAP_OFS 0x0040
195#define GIC_VPE_COMPARE_MAP_OFS 0x0044
196#define GIC_VPE_TIMER_MAP_OFS 0x0048
197#define GIC_VPE_PERFCTR_MAP_OFS 0x0050
198#define GIC_VPE_SWINT0_MAP_OFS 0x0054
199#define GIC_VPE_SWINT1_MAP_OFS 0x0058
200#define GIC_VPE_OTHER_ADDR_OFS 0x0080
201#define GIC_VPE_WD_CONFIG0_OFS 0x0090
202#define GIC_VPE_WD_COUNT0_OFS 0x0094
203#define GIC_VPE_WD_INITIAL0_OFS 0x0098
204#define GIC_VPE_COMPARE_LO_OFS 0x00a0
205#define GIC_VPE_COMPARE_HI 0x00a4
206
207#define GIC_VPE_EIC_SHADOW_SET_BASE 0x0100
208#define GIC_VPE_EIC_SS(intr) \
209 (GIC_EIC_SHADOW_SET_BASE + (4 * intr))
210
211#define GIC_VPE_EIC_VEC_BASE 0x0800
212#define GIC_VPE_EIC_VEC(intr) \
213 (GIC_VPE_EIC_VEC_BASE + (4 * intr))
214
215#define GIC_VPE_TENABLE_NMI_OFS 0x1000
216#define GIC_VPE_TENABLE_YQ_OFS 0x1004
217#define GIC_VPE_TENABLE_INT_31_0_OFS 0x1080
218#define GIC_VPE_TENABLE_INT_63_32_OFS 0x1084
219
220/* User Mode Visible Section Register Map */
221#define GIC_UMV_SH_COUNTER_31_00_OFS 0x0000
222#define GIC_UMV_SH_COUNTER_63_32_OFS 0x0004
223
224/* Masks */
225#define GIC_SH_CONFIG_COUNTSTOP_SHF 28
226#define GIC_SH_CONFIG_COUNTSTOP_MSK (MSK(1) << GIC_SH_CONFIG_COUNTSTOP_SHF)
227
228#define GIC_SH_CONFIG_COUNTBITS_SHF 24
229#define GIC_SH_CONFIG_COUNTBITS_MSK (MSK(4) << GIC_SH_CONFIG_COUNTBITS_SHF)
230
231#define GIC_SH_CONFIG_NUMINTRS_SHF 16
232#define GIC_SH_CONFIG_NUMINTRS_MSK (MSK(8) << GIC_SH_CONFIG_NUMINTRS_SHF)
233
234#define GIC_SH_CONFIG_NUMVPES_SHF 0
235#define GIC_SH_CONFIG_NUMVPES_MSK (MSK(8) << GIC_SH_CONFIG_NUMVPES_SHF)
236
237#define GIC_SH_WEDGE_SET(intr) (intr | (0x1 << 31))
238#define GIC_SH_WEDGE_CLR(intr) (intr & ~(0x1 << 31))
239
240#define GIC_MAP_TO_PIN_SHF 31
241#define GIC_MAP_TO_PIN_MSK (MSK(1) << GIC_MAP_TO_PIN_SHF)
242#define GIC_MAP_TO_NMI_SHF 30
243#define GIC_MAP_TO_NMI_MSK (MSK(1) << GIC_MAP_TO_NMI_SHF)
244#define GIC_MAP_TO_YQ_SHF 29
245#define GIC_MAP_TO_YQ_MSK (MSK(1) << GIC_MAP_TO_YQ_SHF)
246#define GIC_MAP_SHF 0
247#define GIC_MAP_MSK (MSK(6) << GIC_MAP_SHF)
248
249/* GIC_VPE_CTL Masks */
250#define GIC_VPE_CTL_PERFCNT_RTBL_SHF 2
251#define GIC_VPE_CTL_PERFCNT_RTBL_MSK (MSK(1) << GIC_VPE_CTL_PERFCNT_RTBL_SHF)
252#define GIC_VPE_CTL_TIMER_RTBL_SHF 1
253#define GIC_VPE_CTL_TIMER_RTBL_MSK (MSK(1) << GIC_VPE_CTL_TIMER_RTBL_SHF)
254#define GIC_VPE_CTL_EIC_MODE_SHF 0
255#define GIC_VPE_CTL_EIC_MODE_MSK (MSK(1) << GIC_VPE_CTL_EIC_MODE_SHF)
256
257/* GIC_VPE_PEND Masks */
258#define GIC_VPE_PEND_WD_SHF 0
259#define GIC_VPE_PEND_WD_MSK (MSK(1) << GIC_VPE_PEND_WD_SHF)
260#define GIC_VPE_PEND_CMP_SHF 1
261#define GIC_VPE_PEND_CMP_MSK (MSK(1) << GIC_VPE_PEND_CMP_SHF)
262#define GIC_VPE_PEND_TIMER_SHF 2
263#define GIC_VPE_PEND_TIMER_MSK (MSK(1) << GIC_VPE_PEND_TIMER_SHF)
264#define GIC_VPE_PEND_PERFCOUNT_SHF 3
265#define GIC_VPE_PEND_PERFCOUNT_MSK (MSK(1) << GIC_VPE_PEND_PERFCOUNT_SHF)
266#define GIC_VPE_PEND_SWINT0_SHF 4
267#define GIC_VPE_PEND_SWINT0_MSK (MSK(1) << GIC_VPE_PEND_SWINT0_SHF)
268#define GIC_VPE_PEND_SWINT1_SHF 5
269#define GIC_VPE_PEND_SWINT1_MSK (MSK(1) << GIC_VPE_PEND_SWINT1_SHF)
270
271/* GIC_VPE_RMASK Masks */
272#define GIC_VPE_RMASK_WD_SHF 0
273#define GIC_VPE_RMASK_WD_MSK (MSK(1) << GIC_VPE_RMASK_WD_SHF)
274#define GIC_VPE_RMASK_CMP_SHF 1
275#define GIC_VPE_RMASK_CMP_MSK (MSK(1) << GIC_VPE_RMASK_CMP_SHF)
276#define GIC_VPE_RMASK_TIMER_SHF 2
277#define GIC_VPE_RMASK_TIMER_MSK (MSK(1) << GIC_VPE_RMASK_TIMER_SHF)
278#define GIC_VPE_RMASK_PERFCNT_SHF 3
279#define GIC_VPE_RMASK_PERFCNT_MSK (MSK(1) << GIC_VPE_RMASK_PERFCNT_SHF)
280#define GIC_VPE_RMASK_SWINT0_SHF 4
281#define GIC_VPE_RMASK_SWINT0_MSK (MSK(1) << GIC_VPE_RMASK_SWINT0_SHF)
282#define GIC_VPE_RMASK_SWINT1_SHF 5
283#define GIC_VPE_RMASK_SWINT1_MSK (MSK(1) << GIC_VPE_RMASK_SWINT1_SHF)
284
285/* GIC_VPE_SMASK Masks */
286#define GIC_VPE_SMASK_WD_SHF 0
287#define GIC_VPE_SMASK_WD_MSK (MSK(1) << GIC_VPE_SMASK_WD_SHF)
288#define GIC_VPE_SMASK_CMP_SHF 1
289#define GIC_VPE_SMASK_CMP_MSK (MSK(1) << GIC_VPE_SMASK_CMP_SHF)
290#define GIC_VPE_SMASK_TIMER_SHF 2
291#define GIC_VPE_SMASK_TIMER_MSK (MSK(1) << GIC_VPE_SMASK_TIMER_SHF)
292#define GIC_VPE_SMASK_PERFCNT_SHF 3
293#define GIC_VPE_SMASK_PERFCNT_MSK (MSK(1) << GIC_VPE_SMASK_PERFCNT_SHF)
294#define GIC_VPE_SMASK_SWINT0_SHF 4
295#define GIC_VPE_SMASK_SWINT0_MSK (MSK(1) << GIC_VPE_SMASK_SWINT0_SHF)
296#define GIC_VPE_SMASK_SWINT1_SHF 5
297#define GIC_VPE_SMASK_SWINT1_MSK (MSK(1) << GIC_VPE_SMASK_SWINT1_SHF)
298
299/*
300 * Set the Mapping of Interrupt X to a VPE.
301 */
302#define GIC_SH_MAP_TO_VPE_SMASK(intr, vpe) \
303 GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe)), \
304 GIC_SH_MAP_TO_VPE_REG_BIT(vpe))
305
306struct gic_pcpu_mask {
307 DECLARE_BITMAP(pcpu_mask, GIC_NUM_INTRS);
308};
309
310struct gic_pending_regs {
311 DECLARE_BITMAP(pending, GIC_NUM_INTRS);
312};
313
314struct gic_intrmask_regs {
315 DECLARE_BITMAP(intrmask, GIC_NUM_INTRS);
316};
317
318/*
319 * Interrupt Meta-data specification. The ipiflag helps
320 * in building ipi_map.
321 */
322struct gic_intr_map {
323 unsigned int cpunum; /* Directed to this CPU */
324#define GIC_UNUSED 0xdead /* Dummy data */
325 unsigned int pin; /* Directed to this Pin */
326 unsigned int polarity; /* Polarity : +/- */
327 unsigned int trigtype; /* Trigger : Edge/Levl */
328 unsigned int flags; /* Misc flags */
329#define GIC_FLAG_IPI 0x01
330#define GIC_FLAG_TRANSPARENT 0x02
331};
332
333extern void gic_init(unsigned long gic_base_addr,
334 unsigned long gic_addrspace_size, struct gic_intr_map *intrmap,
335 unsigned int intrmap_size, unsigned int irqbase);
336
337extern unsigned int gic_get_int(void);
338extern void gic_send_ipi(unsigned int intr);
339extern unsigned int plat_ipi_call_int_xlate(unsigned int);
340extern unsigned int plat_ipi_resched_int_xlate(unsigned int);
341
342#endif /* _ASM_GICREGS_H */