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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
15extern unsigned char wildfire_hard_qbb_map[WILDFIRE_MAX_QBB];
16extern unsigned char wildfire_soft_qbb_map[WILDFIRE_MAX_QBB];
17#define QBB_MAP_EMPTY 0xff
18
19extern unsigned long wildfire_hard_qbb_mask;
20extern unsigned long wildfire_soft_qbb_mask;
21extern unsigned long wildfire_gp_mask;
22extern unsigned long wildfire_hs_mask;
23extern unsigned long wildfire_iop_mask;
24extern unsigned long wildfire_ior_mask;
25extern unsigned long wildfire_pca_mask;
26extern unsigned long wildfire_cpu_mask;
27extern 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
36typedef struct {
37 volatile unsigned long csr __attribute__((aligned(64)));
38} wildfire_64;
39
40typedef struct {
41 volatile unsigned long csr __attribute__((aligned(256)));
42} wildfire_256;
43
44typedef struct {
45 volatile unsigned long csr __attribute__((aligned(2048)));
46} wildfire_2k;
47
48typedef 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
68typedef 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
79typedef 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
107typedef 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
149typedef 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
161typedef 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
183typedef struct {
184 wildfire_64 ne_what_am_i;
185 /* not complete */
186} wildfire_ne;
187
188typedef struct {
189 wildfire_64 fe_what_am_i;
190 /* not complete */
191} wildfire_fe;
192
193typedef 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
281__EXTERN_INLINE void __iomem *wildfire_ioportmap(unsigned long addr)
282{
283 return (void __iomem *)(addr + WILDFIRE_IO_BIAS);
284}
285
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
292__EXTERN_INLINE int wildfire_is_ioaddr(unsigned long addr)
293{
294 return addr >= WILDFIRE_BASE;
295}
296
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__ */