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