1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ALPHA_WILDFIRE__H__
3 #define __ALPHA_WILDFIRE__H__
4
5 #include <linux/types.h>
6 #include <asm/compiler.h>
7
8 #define WILDFIRE_MAX_QBB 8 /* more than 8 requires other mods */
9 #define WILDFIRE_PCA_PER_QBB 4
10 #define WILDFIRE_IRQ_PER_PCA 64
11
12 #define WILDFIRE_NR_IRQS \
13 (WILDFIRE_MAX_QBB * WILDFIRE_PCA_PER_QBB * WILDFIRE_IRQ_PER_PCA)
14
15 extern unsigned char wildfire_hard_qbb_map[WILDFIRE_MAX_QBB];
16 extern unsigned char wildfire_soft_qbb_map[WILDFIRE_MAX_QBB];
17 #define QBB_MAP_EMPTY 0xff
18
19 extern unsigned long wildfire_hard_qbb_mask;
20 extern unsigned long wildfire_soft_qbb_mask;
21 extern unsigned long wildfire_gp_mask;
22 extern unsigned long wildfire_hs_mask;
23 extern unsigned long wildfire_iop_mask;
24 extern unsigned long wildfire_ior_mask;
25 extern unsigned long wildfire_pca_mask;
26 extern unsigned long wildfire_cpu_mask;
27 extern unsigned long wildfire_mem_mask;
28
29 #define WILDFIRE_QBB_EXISTS(qbbno) (wildfire_soft_qbb_mask & (1 << (qbbno)))
30
31 #define WILDFIRE_MEM_EXISTS(qbbno) (wildfire_mem_mask & (0xf << ((qbbno) << 2)))
32
33 #define WILDFIRE_PCA_EXISTS(qbbno, pcano) \
34 (wildfire_pca_mask & (1 << (((qbbno) << 2) + (pcano))))
35
36 typedef struct {
37 volatile unsigned long csr __attribute__((aligned(64)));
38 } wildfire_64;
39
40 typedef struct {
41 volatile unsigned long csr __attribute__((aligned(256)));
42 } wildfire_256;
43
44 typedef struct {
45 volatile unsigned long csr __attribute__((aligned(2048)));
46 } wildfire_2k;
47
48 typedef struct {
49 wildfire_64 qsd_whami;
50 wildfire_64 qsd_rev;
51 wildfire_64 qsd_port_present;
52 wildfire_64 qsd_port_active;
53 wildfire_64 qsd_fault_ena;
54 wildfire_64 qsd_cpu_int_ena;
55 wildfire_64 qsd_mem_config;
56 wildfire_64 qsd_err_sum;
57 wildfire_64 ce_sum[4];
58 wildfire_64 dev_init[4];
59 wildfire_64 it_int[4];
60 wildfire_64 ip_int[4];
61 wildfire_64 uce_sum[4];
62 wildfire_64 se_sum__non_dev_int[4];
63 wildfire_64 scratch[4];
64 wildfire_64 qsd_timer;
65 wildfire_64 qsd_diag;
66 } wildfire_qsd;
67
68 typedef struct {
69 wildfire_256 qsd_whami;
70 wildfire_256 __pad1;
71 wildfire_256 ce_sum;
72 wildfire_256 dev_init;
73 wildfire_256 it_int;
74 wildfire_256 ip_int;
75 wildfire_256 uce_sum;
76 wildfire_256 se_sum;
77 } wildfire_fast_qsd;
78
79 typedef struct {
80 wildfire_2k qsa_qbb_id;
81 wildfire_2k __pad1;
82 wildfire_2k qsa_port_ena;
83 wildfire_2k qsa_scratch;
84 wildfire_2k qsa_config[5];
85 wildfire_2k qsa_ref_int;
86 wildfire_2k qsa_qbb_pop[2];
87 wildfire_2k qsa_dtag_fc;
88 wildfire_2k __pad2[3];
89 wildfire_2k qsa_diag;
90 wildfire_2k qsa_diag_lock[4];
91 wildfire_2k __pad3[11];
92 wildfire_2k qsa_cpu_err_sum;
93 wildfire_2k qsa_misc_err_sum;
94 wildfire_2k qsa_tmo_err_sum;
95 wildfire_2k qsa_err_ena;
96 wildfire_2k qsa_tmo_config;
97 wildfire_2k qsa_ill_cmd_err_sum;
98 wildfire_2k __pad4[26];
99 wildfire_2k qsa_busy_mask;
100 wildfire_2k qsa_arr_valid;
101 wildfire_2k __pad5[2];
102 wildfire_2k qsa_port_map[4];
103 wildfire_2k qsa_arr_addr[8];
104 wildfire_2k qsa_arr_mask[8];
105 } wildfire_qsa;
106
107 typedef struct {
108 wildfire_64 ioa_config;
109 wildfire_64 iod_config;
110 wildfire_64 iop_switch_credits;
111 wildfire_64 __pad1;
112 wildfire_64 iop_hose_credits;
113 wildfire_64 __pad2[11];
114 struct {
115 wildfire_64 __pad3;
116 wildfire_64 init;
117 } iop_hose[4];
118 wildfire_64 ioa_hose_0_ctrl;
119 wildfire_64 iod_hose_0_ctrl;
120 wildfire_64 ioa_hose_1_ctrl;
121 wildfire_64 iod_hose_1_ctrl;
122 wildfire_64 ioa_hose_2_ctrl;
123 wildfire_64 iod_hose_2_ctrl;
124 wildfire_64 ioa_hose_3_ctrl;
125 wildfire_64 iod_hose_3_ctrl;
126 struct {
127 wildfire_64 target;
128 wildfire_64 __pad4;
129 } iop_dev_int[4];
130
131 wildfire_64 iop_err_int_target;
132 wildfire_64 __pad5[7];
133 wildfire_64 iop_qbb_err_sum;
134 wildfire_64 __pad6;
135 wildfire_64 iop_qbb_se_sum;
136 wildfire_64 __pad7;
137 wildfire_64 ioa_err_sum;
138 wildfire_64 iod_err_sum;
139 wildfire_64 __pad8[4];
140 wildfire_64 ioa_diag_force_err;
141 wildfire_64 iod_diag_force_err;
142 wildfire_64 __pad9[4];
143 wildfire_64 iop_diag_send_err_int;
144 wildfire_64 __pad10[15];
145 wildfire_64 ioa_scratch;
146 wildfire_64 iod_scratch;
147 } wildfire_iop;
148
149 typedef struct {
150 wildfire_2k gpa_qbb_map[4];
151 wildfire_2k gpa_mem_pop_map;
152 wildfire_2k gpa_scratch;
153 wildfire_2k gpa_diag;
154 wildfire_2k gpa_config_0;
155 wildfire_2k __pad1;
156 wildfire_2k gpa_init_id;
157 wildfire_2k gpa_config_2;
158 /* not complete */
159 } wildfire_gp;
160
161 typedef struct {
162 wildfire_64 pca_what_am_i;
163 wildfire_64 pca_err_sum;
164 wildfire_64 pca_diag_force_err;
165 wildfire_64 pca_diag_send_err_int;
166 wildfire_64 pca_hose_credits;
167 wildfire_64 pca_scratch;
168 wildfire_64 pca_micro_addr;
169 wildfire_64 pca_micro_data;
170 wildfire_64 pca_pend_int;
171 wildfire_64 pca_sent_int;
172 wildfire_64 __pad1;
173 wildfire_64 pca_stdio_edge_level;
174 wildfire_64 __pad2[52];
175 struct {
176 wildfire_64 target;
177 wildfire_64 enable;
178 } pca_int[4];
179 wildfire_64 __pad3[56];
180 wildfire_64 pca_alt_sent_int[32];
181 } wildfire_pca;
182
183 typedef struct {
184 wildfire_64 ne_what_am_i;
185 /* not complete */
186 } wildfire_ne;
187
188 typedef struct {
189 wildfire_64 fe_what_am_i;
190 /* not complete */
191 } wildfire_fe;
192
193 typedef struct {
194 wildfire_64 pci_io_addr_ext;
195 wildfire_64 pci_ctrl;
196 wildfire_64 pci_err_sum;
197 wildfire_64 pci_err_addr;
198 wildfire_64 pci_stall_cnt;
199 wildfire_64 pci_iack_special;
200 wildfire_64 __pad1[2];
201 wildfire_64 pci_pend_int;
202 wildfire_64 pci_sent_int;
203 wildfire_64 __pad2[54];
204 struct {
205 wildfire_64 wbase;
206 wildfire_64 wmask;
207 wildfire_64 tbase;
208 } pci_window[4];
209 wildfire_64 pci_flush_tlb;
210 wildfire_64 pci_perf_mon;
211 } wildfire_pci;
212
213 #define WILDFIRE_ENTITY_SHIFT 18
214
215 #define WILDFIRE_GP_ENTITY (0x10UL << WILDFIRE_ENTITY_SHIFT)
216 #define WILDFIRE_IOP_ENTITY (0x08UL << WILDFIRE_ENTITY_SHIFT)
217 #define WILDFIRE_QSA_ENTITY (0x04UL << WILDFIRE_ENTITY_SHIFT)
218 #define WILDFIRE_QSD_ENTITY_SLOW (0x05UL << WILDFIRE_ENTITY_SHIFT)
219 #define WILDFIRE_QSD_ENTITY_FAST (0x01UL << WILDFIRE_ENTITY_SHIFT)
220
221 #define WILDFIRE_PCA_ENTITY(pca) ((0xc|(pca))<<WILDFIRE_ENTITY_SHIFT)
222
223 #define WILDFIRE_BASE (IDENT_ADDR | (1UL << 40))
224
225 #define WILDFIRE_QBB_MASK 0x0fUL /* for now, only 4 bits/16 QBBs */
226
227 #define WILDFIRE_QBB(q) ((~((long)(q)) & WILDFIRE_QBB_MASK) << 36)
228 #define WILDFIRE_HOSE(h) ((long)(h) << 33)
229
230 #define WILDFIRE_QBB_IO(q) (WILDFIRE_BASE | WILDFIRE_QBB(q))
231 #define WILDFIRE_QBB_HOSE(q,h) (WILDFIRE_QBB_IO(q) | WILDFIRE_HOSE(h))
232
233 #define WILDFIRE_MEM(q,h) (WILDFIRE_QBB_HOSE(q,h) | 0x000000000UL)
234 #define WILDFIRE_CONF(q,h) (WILDFIRE_QBB_HOSE(q,h) | 0x1FE000000UL)
235 #define WILDFIRE_IO(q,h) (WILDFIRE_QBB_HOSE(q,h) | 0x1FF000000UL)
236
237 #define WILDFIRE_qsd(q) \
238 ((wildfire_qsd *)(WILDFIRE_QBB_IO(q)|WILDFIRE_QSD_ENTITY_SLOW|(((1UL<<13)-1)<<23)))
239
240 #define WILDFIRE_fast_qsd() \
241 ((wildfire_fast_qsd *)(WILDFIRE_QBB_IO(0)|WILDFIRE_QSD_ENTITY_FAST|(((1UL<<13)-1)<<23)))
242
243 #define WILDFIRE_qsa(q) \
244 ((wildfire_qsa *)(WILDFIRE_QBB_IO(q)|WILDFIRE_QSA_ENTITY|(((1UL<<13)-1)<<23)))
245
246 #define WILDFIRE_iop(q) \
247 ((wildfire_iop *)(WILDFIRE_QBB_IO(q)|WILDFIRE_IOP_ENTITY|(((1UL<<13)-1)<<23)))
248
249 #define WILDFIRE_gp(q) \
250 ((wildfire_gp *)(WILDFIRE_QBB_IO(q)|WILDFIRE_GP_ENTITY|(((1UL<<13)-1)<<23)))
251
252 #define WILDFIRE_pca(q,pca) \
253 ((wildfire_pca *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(pca)|(((1UL<<13)-1)<<23)))
254
255 #define WILDFIRE_ne(q,pca) \
256 ((wildfire_ne *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(pca)|(((1UL<<13)-1)<<23)|(1UL<<16)))
257
258 #define WILDFIRE_fe(q,pca) \
259 ((wildfire_fe *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(pca)|(((1UL<<13)-1)<<23)|(3UL<<15)))
260
261 #define WILDFIRE_pci(q,h) \
262 ((wildfire_pci *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(((h)&6)>>1)|((((h)&1)|2)<<16)|(((1UL<<13)-1)<<23)))
263
264 #define WILDFIRE_IO_BIAS WILDFIRE_IO(0,0)
265 #define WILDFIRE_MEM_BIAS WILDFIRE_MEM(0,0) /* ??? */
266
267 /* The IO address space is larger than 0xffff */
268 #define WILDFIRE_IO_SPACE (8UL*1024*1024)
269
270 #ifdef __KERNEL__
271
272 #ifndef __EXTERN_INLINE
273 #define __EXTERN_INLINE extern inline
274 #define __IO_EXTERN_INLINE
275 #endif
276
277 /*
278 * Memory functions. all accesses are done through linear space.
279 */
280
wildfire_ioportmap(unsigned long addr)281 __EXTERN_INLINE void __iomem *wildfire_ioportmap(unsigned long addr)
282 {
283 return (void __iomem *)(addr + WILDFIRE_IO_BIAS);
284 }
285
wildfire_ioremap(unsigned long addr,unsigned long size)286 __EXTERN_INLINE void __iomem *wildfire_ioremap(unsigned long addr,
287 unsigned long size)
288 {
289 return (void __iomem *)(addr + WILDFIRE_MEM_BIAS);
290 }
291
wildfire_is_ioaddr(unsigned long addr)292 __EXTERN_INLINE int wildfire_is_ioaddr(unsigned long addr)
293 {
294 return addr >= WILDFIRE_BASE;
295 }
296
wildfire_is_mmio(const volatile void __iomem * xaddr)297 __EXTERN_INLINE int wildfire_is_mmio(const volatile void __iomem *xaddr)
298 {
299 unsigned long addr = (unsigned long)xaddr;
300 return (addr & 0x100000000UL) == 0;
301 }
302
303 #undef __IO_PREFIX
304 #define __IO_PREFIX wildfire
305 #define wildfire_trivial_rw_bw 1
306 #define wildfire_trivial_rw_lq 1
307 #define wildfire_trivial_io_bw 1
308 #define wildfire_trivial_io_lq 1
309 #define wildfire_trivial_iounmap 1
310 #include <asm/io_trivial.h>
311
312 #ifdef __IO_EXTERN_INLINE
313 #undef __EXTERN_INLINE
314 #undef __IO_EXTERN_INLINE
315 #endif
316
317 #endif /* __KERNEL__ */
318
319 #endif /* __ALPHA_WILDFIRE__H__ */
320