1/*	$NetBSD: rmixl_fmn.c,v 1.5 2023/08/11 07:05:39 mrg Exp $	*/
2/*-
3 * Copyright (c) 2010 The NetBSD Foundation, Inc.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to The NetBSD Foundation
7 * by Cliff Neighbors.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "opt_ddb.h"
32
33#include <sys/cdefs.h>
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/cpu.h>
37#include <mips/cpuregs.h>
38#include <mips/rmi/rmixlreg.h>
39#include <mips/rmi/rmixlvar.h>
40#include <mips/rmi/rmixl_intr.h>
41#include <mips/rmi/rmixl_fmnvar.h>
42
43#ifdef FMN_DEBUG
44# define DPRINTF(x)	do { printf x ; } while(0)
45#else
46# define DPRINTF(x)
47#endif
48
49#ifdef DIAGNOSTIC
50# define DIAG_PRF(x)	do { printf x ; } while(0)
51#else
52# define DIAG_PRF(x)
53#endif
54
55
56
57/*
58 * index CPU-dependent table by (global) bucket ID to obtain logical Station ID
59 * see Table 12.1 in the XLS PRM
60 */
61/* use this table for XLS6xx, XLS4xx */
62static const int station_xls_4xx[] = {
63	[0 ... 7]	= RMIXLS_FMN_STID_CORE0,
64	[8 ... 15]	= RMIXLS_FMN_STID_CORE1,
65	[16 ... 23]	= RMIXLS_FMN_STID_CORE2,
66	[24 ... 31]	= RMIXLS_FMN_STID_CORE3,
67	[32 ... 63]	= RMIXLS_FMN_STID_RESERVED,
68	[64 ... 71]	= RMIXLS_FMN_STID_PCIE,
69	[72 ... 79]	= RMIXLS_FMN_STID_RESERVED,
70	[80 ... 87]	= RMIXLS_FMN_STID_GMAC_Q1,
71	[88 ... 95]	= RMIXLS_FMN_STID_RESERVED,
72	[96 ... 103]	= RMIXLS_FMN_STID_GMAC_Q0,
73	[104 ... 107]	= RMIXLS_FMN_STID_DMA,
74	[108 ... 109]	= RMIXLS_FMN_STID_CDE,
75	[110 ... 119]	= RMIXLS_FMN_STID_RESERVED,
76	[120 ... 127]	= RMIXLS_FMN_STID_SAE,
77};
78
79/* use this table for XLS408Lite, XLS404Lite */
80static const int station_xls_4xx_lite[] = {
81	[0 ... 7]	= RMIXLS_FMN_STID_CORE0,
82	[8 ... 15]	= RMIXLS_FMN_STID_CORE1,
83	[16 ... 23]	= RMIXLS_FMN_STID_CORE2,
84	[24 ... 31]	= RMIXLS_FMN_STID_CORE3,
85	[32 ... 79]	= RMIXLS_FMN_STID_RESERVED,
86	[80 ... 87]	= RMIXLS_FMN_STID_GMAC_Q1,
87	[88 ... 95]	= RMIXLS_FMN_STID_RESERVED,
88	[96 ... 103]	= RMIXLS_FMN_STID_GMAC_Q0,
89	[104 ... 107]	= RMIXLS_FMN_STID_DMA,
90	[108 ... 109]	= RMIXLS_FMN_STID_CDE,
91	[110 ... 115]	= RMIXLS_FMN_STID_RESERVED,
92	[116 ... 119]	= RMIXLS_FMN_STID_PCIE,
93	[120 ... 127]	= RMIXLS_FMN_STID_SAE,
94};
95
96/* use this table for XLS2xx */
97static const int station_xls_2xx[] = {
98	[0 ... 7]	= RMIXLS_FMN_STID_CORE0,
99	[8 ... 15]	= RMIXLS_FMN_STID_CORE1,
100	[16 ... 23]	= RMIXLS_FMN_STID_CORE2,
101	[24 ... 31]	= RMIXLS_FMN_STID_CORE3,
102	[32 ... 63]	= RMIXLS_FMN_STID_RESERVED,
103	[64 ... 71]	= RMIXLS_FMN_STID_PCIE,
104	[72 ... 95]	= RMIXLS_FMN_STID_RESERVED,
105	[96 ... 103]	= RMIXLS_FMN_STID_GMAC_Q0,
106	[104 ... 107]	= RMIXLS_FMN_STID_DMA,
107	[108 ... 119]	= RMIXLS_FMN_STID_RESERVED,
108	[120 ... 127]	= RMIXLS_FMN_STID_SAE,
109};
110
111/* use this table for XLS1xx */
112static const int station_xls_1xx[] = {
113	[0 ... 7]	= RMIXLS_FMN_STID_CORE0,
114	[8 ... 15]	= RMIXLS_FMN_STID_CORE1,
115	[16 ... 23]	= RMIXLS_FMN_STID_CORE2,
116	[24 ... 31]	= RMIXLS_FMN_STID_CORE3,
117	[32 ... 63]	= RMIXLS_FMN_STID_RESERVED,
118	[64 ... 71]	= RMIXLS_FMN_STID_PCIE,
119	[72 ... 95]	= RMIXLS_FMN_STID_RESERVED,
120	[96 ... 101]	= RMIXLS_FMN_STID_GMAC_Q0,
121	[102 ... 103]	= RMIXLS_FMN_STID_RESERVED,
122	[104 ... 107]	= RMIXLS_FMN_STID_DMA,
123	[108 ... 119]	= RMIXLS_FMN_STID_RESERVED,
124	[120 ... 127]	= RMIXLS_FMN_STID_SAE,
125};
126
127/* use this table for XLRxxx */
128static const int station_xlr_xxx[] = {
129	[0 ... 7]	= RMIXLR_FMN_STID_CORE0,
130	[8 ... 15]	= RMIXLR_FMN_STID_CORE1,
131	[16 ... 23]	= RMIXLR_FMN_STID_CORE2,
132	[24 ... 31]	= RMIXLR_FMN_STID_CORE3,
133	[32 ... 39]	= RMIXLR_FMN_STID_CORE4,
134	[40 ... 47]	= RMIXLR_FMN_STID_CORE5,
135	[48 ... 55]	= RMIXLR_FMN_STID_CORE6,
136	[56 ... 63]	= RMIXLR_FMN_STID_CORE7,
137	[64 ... 79]	= RMIXLR_FMN_STID_TXRX_0,
138	[80 ... 95]	= RMIXLR_FMN_STID_TXRX_1,
139	[96 ... 103]	= RMIXLR_FMN_STID_RGMII,
140	[104 ... 107]	= RMIXLR_FMN_STID_DMA,
141	[108 ... 111]	= RMIXLR_FMN_STID_RESERVED,
142	[112 ... 113]	= RMIXLR_FMN_STID_FREE_0,
143	[114 ... 115]	= RMIXLR_FMN_STID_FREE_0,
144	[116 ... 119]	= RMIXLR_FMN_STID_RESERVED,
145	[120 ... 127]	= RMIXLR_FMN_STID_SAE,
146};
147
148typedef struct fmn_station_info {
149	const char     *si_name;
150	const u_int	si_buckets_max;
151	const u_int	si_stid_first;
152	const u_int	si_stid_last;
153	const u_int	si_bucket_size_dflt;
154	const u_int	si_credits_min;
155	const u_int	si_regbase;
156} fmn_station_info_t;
157
158/* use this table for XLS6xx, XLS4xx */
159static const fmn_station_info_t station_info_xls_4xx[RMIXLS_FMN_NSTID] = {
160	[RMIXLS_FMN_STID_CORE0]   = { "core0",	8,   0,   7,  32, 4, 0 },
161	[RMIXLS_FMN_STID_CORE1]   = { "core1",	8,   8,  15,  32, 4, 0 },
162	[RMIXLS_FMN_STID_CORE2]   = { "core2",	8,  16,  23,  32, 4, 0 },
163	[RMIXLS_FMN_STID_CORE3]   = { "core3",	8,  24,  31,  32, 4, 0 },
164	[RMIXLS_FMN_STID_GMAC_Q0] = { "gmac_q0",	3,  80,  87,  32, 0, RMIXL_IO_DEV_GMAC_0 },
165	[RMIXLS_FMN_STID_GMAC_Q1] = { "gmac_q1",	3,  96, 103,  32, 0, RMIXL_IO_DEV_GMAC_4 },
166	[RMIXLS_FMN_STID_DMA]     = { "dma",	4, 104, 107,  64, 0, RMIXL_IO_DEV_DMA },
167	[RMIXLS_FMN_STID_CDE]     = { "cde",	4, 108, 109, 128, 0, RMIXL_IO_DEV_CDE },
168	[RMIXLS_FMN_STID_PCIE]    = { "pcie",	8,  64,  71,  32, 0, RMIXL_IO_DEV_PCIE_BE },
169	[RMIXLS_FMN_STID_SAE]     = { "sae",	2, 120, 121, 128, 0, RMIXL_IO_DEV_SAE },
170};
171
172/* use this table for XLS4xxLite */
173static const fmn_station_info_t station_info_xls_4xx_lite[RMIXLS_FMN_NSTID] = {
174	[RMIXLS_FMN_STID_CORE0]   = { "core0",	8,   0,   7,  32, 4, 0 },
175	[RMIXLS_FMN_STID_CORE1]   = { "core1",	8,   8,  15,  32, 4, 0 },
176	[RMIXLS_FMN_STID_CORE2]   = { "core2",	8,  16,  23,  32, 4, 0 },
177	[RMIXLS_FMN_STID_CORE3]   = { "core3",	8,  24,  31,  32, 4, 0 },
178	[RMIXLS_FMN_STID_GMAC_Q0] = { "gmac_q0",	3,  80,  87,  32, 0, RMIXL_IO_DEV_GMAC_0 },
179	[RMIXLS_FMN_STID_GMAC_Q1] = { "gmac_q1",	3,  96, 103,  32, 0, RMIXL_IO_DEV_GMAC_4 },
180	[RMIXLS_FMN_STID_DMA]     = { "dma",	4, 104, 107,  64, 0, RMIXL_IO_DEV_DMA },
181	[RMIXLS_FMN_STID_CDE]     = { "cde",	4, 108, 109, 128, 0, RMIXL_IO_DEV_CDE },
182	[RMIXLS_FMN_STID_PCIE]    = { "pcie",	4, 116, 119,  64, 0, RMIXL_IO_DEV_PCIE_BE },
183	[RMIXLS_FMN_STID_SAE]     = { "sae",	2, 120, 121, 128, 0, RMIXL_IO_DEV_SAE },
184};
185
186/* use this table for XLS2xx */
187static const fmn_station_info_t station_info_xls_2xx[RMIXLS_FMN_NSTID] = {
188	[RMIXLS_FMN_STID_CORE0]   = { "core0",	8,   0,   7,  32, 4, 0 },
189	[RMIXLS_FMN_STID_CORE1]   = { "core1",	8,   8,  15,  32, 4, 0 },
190	[RMIXLS_FMN_STID_CORE2]   = { "core2",	8,  16,  23,  32, 4, 0 },
191	[RMIXLS_FMN_STID_CORE3]   = { "core3",	8,  24,  31,  32, 4, 0 },
192	[RMIXLS_FMN_STID_GMAC_Q0] = { "gmac_q0",	3,  96, 103,  32, 0, RMIXL_IO_DEV_GMAC_0 },
193	[RMIXLS_FMN_STID_DMA]     = { "dma",	4, 104, 107,  64, 0, RMIXL_IO_DEV_DMA },
194	[RMIXLS_FMN_STID_PCIE]    = { "pcie",	8,  64,  71,  32, 0, RMIXL_IO_DEV_PCIE_BE },
195	[RMIXLS_FMN_STID_SAE]     = { "sae",	2, 120, 121, 128, 0, RMIXL_IO_DEV_SAE },
196};
197
198/* use this table for XLS1xx */
199static const fmn_station_info_t station_info_xls_1xx[RMIXLS_FMN_NSTID] = {
200	[RMIXLS_FMN_STID_CORE0]   = { "core0",	8,   0,   7,  32, 4, 0 },
201	[RMIXLS_FMN_STID_CORE1]   = { "core1",	8,   8,  15,  32, 4, 0 },
202	[RMIXLS_FMN_STID_CORE2]   = { "core2",	8,  16,  23,  32, 4, 0 },
203	[RMIXLS_FMN_STID_CORE3]   = { "core3",	8,  24,  31,  32, 4, 0 },
204	[RMIXLS_FMN_STID_GMAC_Q0] = { "gmac_q0",	3,  96, 101,  32, 0, RMIXL_IO_DEV_GMAC_0 },
205	[RMIXLS_FMN_STID_DMA]     = { "dma",	4, 104, 107,  64, 0, RMIXL_IO_DEV_PCIE_BE },
206	[RMIXLS_FMN_STID_PCIE]    = { "pcie",	4,  64,  67,  32, 0, RMIXL_IO_DEV_PCIE_BE },
207	[RMIXLS_FMN_STID_SAE]     = { "sae",	2, 120, 121, 128, 0, RMIXL_IO_DEV_SAE },
208};
209
210/*
211 * use this table for XLRxxx
212 * caution:
213 * - the XGMII/SPI4 stations si_regbase are 'special'
214 * - the RGMII station si_regbase is 'special'
215 */
216static const fmn_station_info_t station_info_xlr_xxx[RMIXLR_FMN_NSTID] = {
217	[RMIXLR_FMN_STID_CORE0]   = { "core0",	8,   0,   7,  32, 4, 0 },
218	[RMIXLR_FMN_STID_CORE1]   = { "core1",	8,   8,  15,  32, 4, 0 },
219	[RMIXLR_FMN_STID_CORE2]   = { "core2",	8,  16,  23,  32, 4, 0 },
220	[RMIXLR_FMN_STID_CORE3]   = { "core3",	8,  24,  31,  32, 4, 0 },
221	[RMIXLR_FMN_STID_CORE4]   = { "core4",	8,  32,  39,  32, 4, 0 },
222	[RMIXLR_FMN_STID_CORE5]   = { "core5",	8,  40,  47,  32, 4, 0 },
223	[RMIXLR_FMN_STID_CORE6]   = { "core6",	8,  48,  55,  32, 4, 0 },
224	[RMIXLR_FMN_STID_CORE7]   = { "core7",	8,  56,  63,  32, 4, 0 },
225	[RMIXLR_FMN_STID_TXRX_0]  = { "txrx0",	1,  64,  79,  16, 0, RMIXL_IO_DEV_XGMAC_A },
226	[RMIXLR_FMN_STID_TXRX_1]  = { "txrx1",	1,  80,  95,  16, 0, RMIXL_IO_DEV_XGMAC_B },
227	[RMIXLR_FMN_STID_RGMII]   = { "rgmii",	8,  96, 103,  32, 0, RMIXL_IO_DEV_GMAC_A },
228	[RMIXLR_FMN_STID_DMA]     = { "dma",	4, 104, 107,  64, 0, RMIXL_IO_DEV_DMA },
229	[RMIXLR_FMN_STID_FREE_0]  = { "free0",	2, 112, 113, 128, 0, RMIXL_IO_DEV_XGMAC_A },
230	[RMIXLR_FMN_STID_FREE_1]  = { "free1",	2, 114, 115, 128, 0, RMIXL_IO_DEV_XGMAC_B },
231	[RMIXLR_FMN_STID_SAE]     = { "sae",	5, 120, 124,  32, 0, RMIXL_IO_DEV_SAE },
232};
233
234
235typedef struct fmn_intrhand {
236	int		(*ih_func)(void *, rmixl_fmn_rxmsg_t *);
237	void		*ih_arg;
238	struct evcnt	ih_count;
239} fmn_intrhand_t;
240
241/*
242 * per-core FMN structure
243 */
244typedef struct fmn {
245	kmutex_t		       *fmn_lock;
246	u_int				fmn_core;
247	u_int				fmn_thread;
248	u_int				fmn_nstid;
249	const int		       *fmn_stidtab;
250	const fmn_station_info_t       *fmn_stinfo;
251	void			       *fmn_ih;
252	fmn_intrhand_t			fmn_intrhand[RMIXL_FMN_NSTID];
253} fmn_t;
254
255static fmn_t fmn_store[1 << 10];	/* index by cpuid) *//* XXX assumes 1 node */
256#define NFMN	(sizeof(fmn_store) / sizeof(fmn_store[0]))
257
258static fmn_t *
259fmn_lookup(cpuid_t cpuid)
260{
261	KASSERT(cpuid < (cpuid_t)NFMN);
262	return &fmn_store[cpuid];
263}
264
265static void rmixl_fmn_init_core_xlr(fmn_t *);
266static void rmixl_fmn_init_core_xls(fmn_t *);
267static void	rmixl_fmn_config_noncore(fmn_t *);
268static void	rmixl_fmn_config_core(fmn_t *);
269#ifdef NOTYET
270static int	rmixl_fmn_intr_dispatch(void *);
271#endif	/* NOTYET */
272static int	rmixl_fmn_msg_recv_subr(u_int, rmixl_fmn_rxmsg_t *);
273
274#ifdef FMN_DEBUG
275void	rmixl_fmn_cp2_dump(void);
276void	rmixl_fmn_cc_dump(void);
277#endif
278
279/*
280 * macros used because mtc2, mfc2, dmtc2, dmfc2 instructions
281 * must use literal values for rd and sel operands
282 * so let the compiler sort it out
283 */
284
285/*
286 * write v to all 8 SELs for given RD
287 */
288#define FMN_CP2_4SEL_READ(rd, sel, vp)					\
289	do {								\
290		uint32_t *rp = vp;					\
291		RMIXL_MFC2(rd, sel,   rp[0]);				\
292		RMIXL_MFC2(rd, sel+1, rp[1]);				\
293		RMIXL_MFC2(rd, sel+2, rp[2]);				\
294		RMIXL_MFC2(rd, sel+3, rp[3]);				\
295	} while (0)
296
297/*
298 * write v to all 8 SELs for given RD
299 */
300#define FMN_CP2_4SEL_WRITE(rd, sel, v)					\
301	do {								\
302		RMIXL_MTC2(rd, sel,   v);				\
303		RMIXL_MTC2(rd, sel+1, v);				\
304		RMIXL_MTC2(rd, sel+2, v);				\
305		RMIXL_MTC2(rd, sel+3, v);				\
306	} while (0)
307
308#define FMN_CP2_8SEL_WRITE(rd, v)					\
309	do {								\
310		RMIXL_MTC2(rd, 0, v);					\
311		RMIXL_MTC2(rd, 1, v);					\
312		RMIXL_MTC2(rd, 2, v);					\
313		RMIXL_MTC2(rd, 3, v);					\
314		RMIXL_MTC2(rd, 4, v);					\
315		RMIXL_MTC2(rd, 5, v);					\
316		RMIXL_MTC2(rd, 6, v);					\
317		RMIXL_MTC2(rd, 7, v);					\
318	} while (0)
319
320
321#define FMN_CP2_SEL_CASE_READ(rd, sel, v)				\
322	case sel:							\
323		RMIXL_MFC2(rd, sel, v);					\
324		break
325#define FMN_CP2_SEL_CASE_WRITE(rd, sel, v)				\
326	case sel:							\
327		RMIXL_MTC2(rd, sel, v);					\
328		break
329/*
330 * read/write a single arbitrary sel for the given rd
331 */
332#define FMN_CP2_SEL_SWITCH_RW(rw, rd, sel, val)				\
333	do {								\
334		switch (sel) {						\
335			FMN_CP2_SEL_CASE_ ## rw(rd, 0, val);		\
336			FMN_CP2_SEL_CASE_ ## rw(rd, 1, val);		\
337			FMN_CP2_SEL_CASE_ ## rw(rd, 2, val);		\
338			FMN_CP2_SEL_CASE_ ## rw(rd, 3, val);		\
339			FMN_CP2_SEL_CASE_ ## rw(rd, 4, val);		\
340			FMN_CP2_SEL_CASE_ ## rw(rd, 5, val);		\
341			FMN_CP2_SEL_CASE_ ## rw(rd, 6, val);		\
342			FMN_CP2_SEL_CASE_ ## rw(rd, 7, val);		\
343			default:					\
344				panic("%s:%d: bad sel %d\n",		\
345					__func__, __LINE__, sel);	\
346		}							\
347	} while (0)
348
349#define FMN_CP2_RD_CASE_RW(rw, rd, sel, val)				\
350	case rd:							\
351		FMN_CP2_SEL_SWITCH_RW(rw, rd, sel, val);		\
352		break
353/*
354 * read/write a single arbitrary Credit Counter at (rd, sel)
355 * eg:
356 *	FMN_CP2_RD_SWITCH_RW(READ,  16, 2, val)
357 *	FMN_CP2_RD_SWITCH_RW(WRITE, 18, 0, val)
358 */
359#define FMN_CP2_RD_SWITCH_RW(rw, rd, sel, val)				\
360	do {								\
361		switch(rd) {						\
362			FMN_CP2_RD_CASE_RW(rw, 0,  sel, val);		\
363			FMN_CP2_RD_CASE_RW(rw, 1,  sel, val);		\
364			FMN_CP2_RD_CASE_RW(rw, 2,  sel, val);		\
365			FMN_CP2_RD_CASE_RW(rw, 3,  sel, val);		\
366			FMN_CP2_RD_CASE_RW(rw, 4,  sel, val);		\
367			FMN_CP2_RD_CASE_RW(rw, 5,  sel, val);		\
368			FMN_CP2_RD_CASE_RW(rw, 6,  sel, val);		\
369			FMN_CP2_RD_CASE_RW(rw, 7,  sel, val);		\
370			FMN_CP2_RD_CASE_RW(rw, 8,  sel, val);		\
371			FMN_CP2_RD_CASE_RW(rw, 9,  sel, val);		\
372			FMN_CP2_RD_CASE_RW(rw, 10, sel, val);		\
373			FMN_CP2_RD_CASE_RW(rw, 11, sel, val);		\
374			FMN_CP2_RD_CASE_RW(rw, 12, sel, val);		\
375			FMN_CP2_RD_CASE_RW(rw, 13, sel, val);		\
376			FMN_CP2_RD_CASE_RW(rw, 14, sel, val);		\
377			FMN_CP2_RD_CASE_RW(rw, 15, sel, val);		\
378			FMN_CP2_RD_CASE_RW(rw, 16, sel, val);		\
379			FMN_CP2_RD_CASE_RW(rw, 17, sel, val);		\
380			FMN_CP2_RD_CASE_RW(rw, 18, sel, val);		\
381			FMN_CP2_RD_CASE_RW(rw, 19, sel, val);		\
382			FMN_CP2_RD_CASE_RW(rw, 20, sel, val);		\
383			FMN_CP2_RD_CASE_RW(rw, 21, sel, val);		\
384			FMN_CP2_RD_CASE_RW(rw, 22, sel, val);		\
385			FMN_CP2_RD_CASE_RW(rw, 23, sel, val);		\
386			FMN_CP2_RD_CASE_RW(rw, 24, sel, val);		\
387			FMN_CP2_RD_CASE_RW(rw, 25, sel, val);		\
388			FMN_CP2_RD_CASE_RW(rw, 26, sel, val);		\
389			FMN_CP2_RD_CASE_RW(rw, 27, sel, val);		\
390			FMN_CP2_RD_CASE_RW(rw, 28, sel, val);		\
391			FMN_CP2_RD_CASE_RW(rw, 29, sel, val);		\
392			FMN_CP2_RD_CASE_RW(rw, 30, sel, val);		\
393			FMN_CP2_RD_CASE_RW(rw, 31, sel, val);		\
394			default:					\
395				panic("%s:%d: bad regno %d\n",		\
396					__func__, __LINE__, rd);	\
397		}							\
398	} while (0)
399
400
401void
402rmixl_fmn_init(void)
403{
404	int cpu;
405	fmn_t *fmnp;
406	static bool once=false;
407
408	KASSERTMSG((CPU_IS_PRIMARY(curcpu())), "ci=%p, index=%d\n",
409		curcpu(), cpu_index(curcpu()));
410	fmnp = fmn_lookup(curcpu()->ci_cpuid);
411
412	if (once == true)
413		panic("%s: call only once!", __func__);
414	once = true;
415
416	for (cpu=0; cpu < NFMN; cpu++) {
417		fmnp[cpu].fmn_core = RMIXL_CPU_CORE(cpu);
418		fmnp[cpu].fmn_thread = RMIXL_CPU_THREAD(cpu);
419	}
420
421	rmixl_fmn_init_core();		/* for initial boot cpu (#0) */
422	rmixl_fmn_config_noncore(fmnp);	/* boot cpu initializes noncore */
423}
424
425/*
426 * link to TX station ID table for RMI XLR type chip
427 */
428static void
429rmixl_fmn_init_core_xlr(fmn_t *fmnp)
430{
431	fmnp->fmn_nstid = RMIXLR_FMN_NSTID;
432	fmnp->fmn_stidtab = station_xlr_xxx;
433	fmnp->fmn_stinfo = station_info_xlr_xxx;
434}
435
436/*
437 * link to TX station ID table for RMI XLS type chip
438 */
439static void
440rmixl_fmn_init_core_xls(fmn_t *fmnp)
441{
442	const fmn_station_info_t *info = NULL;
443	const int *tab = NULL;
444
445	switch (MIPS_PRID_IMPL(mips_options.mips_cpu_id)) {
446	case MIPS_XLS104:
447	case MIPS_XLS108:
448		tab = station_xls_1xx;
449		info = station_info_xls_1xx;
450		break;
451	case MIPS_XLS204:
452	case MIPS_XLS208:
453		tab = station_xls_2xx;
454		info = station_info_xls_2xx;
455		break;
456	case MIPS_XLS404:
457	case MIPS_XLS408:
458	case MIPS_XLS416:
459	case MIPS_XLS608:
460	case MIPS_XLS616:
461		tab = station_xls_4xx;
462		info = station_info_xls_4xx;
463		break;
464	case MIPS_XLS404LITE:
465	case MIPS_XLS408LITE:
466		tab = station_xls_4xx_lite;
467		info = station_info_xls_4xx_lite;
468		break;
469	default:
470		panic("%s: unknown PRID IMPL %#x\n", __func__,
471			MIPS_PRID_IMPL(mips_options.mips_cpu_id));
472	}
473
474	fmnp->fmn_nstid = RMIXLS_FMN_NSTID;
475	fmnp->fmn_stidtab = tab;
476	fmnp->fmn_stinfo = info;
477}
478
479void
480rmixl_fmn_init_core(void)
481{
482	fmn_t *fmnp;
483	kmutex_t *lk;
484
485	fmnp = fmn_lookup(curcpu()->ci_cpuid);
486	KASSERT(fmnp != NULL);
487	KASSERT(fmnp->fmn_core == RMIXL_CPU_CORE(curcpu()->ci_cpuid));
488	KASSERT(fmnp->fmn_thread == RMIXL_CPU_THREAD(curcpu()->ci_cpuid));
489
490	lk = mutex_obj_alloc(MUTEX_DEFAULT, RMIXL_FMN_INTR_IPL);
491	if (lk == NULL)
492		panic("%s: mutex_obj_alloc failed", __func__);
493	fmnp->fmn_lock = lk;
494
495	mutex_enter(fmnp->fmn_lock);
496
497	/*
498	 * do chip-dependent per-core FMN initialization
499	 */
500	switch(cpu_rmixl_chip_type(mips_options.mips_cpu)) {
501	case CIDFL_RMI_TYPE_XLR:
502		rmixl_fmn_init_core_xlr(fmnp);
503		break;
504	case CIDFL_RMI_TYPE_XLS:
505		rmixl_fmn_init_core_xls(fmnp);
506		break;
507	case CIDFL_RMI_TYPE_XLP:
508		panic("%s: RMI XLP not yet supported", __func__);
509	default:
510		panic("%s: RMI chip type %#x unknown", __func__,
511			cpu_rmixl_chip_type(mips_options.mips_cpu));
512	}
513
514	/*
515	 * thread #0 for each core owns 'global' CP2 regs
516	 */
517	if (fmnp->fmn_thread == 0)
518		rmixl_fmn_config_core(fmnp);
519
520	mutex_exit(fmnp->fmn_lock);
521}
522
523/*
524 * rmixl_fmn_config_noncore
525 *
526 *	initialize bucket sizes and (minimum) credits for non-core stations to ZERO
527 *	configured through memory write operations instead of CP2
528 */
529static void
530rmixl_fmn_config_noncore(fmn_t *fmnp)
531{
532	for (u_int sid=0; sid < fmnp->fmn_nstid; sid++) {
533		u_int regoff = fmnp->fmn_stinfo[sid].si_regbase;
534		if (regoff != 0) {
535			u_int buckets_max = fmnp->fmn_stinfo[sid].si_buckets_max;
536			regoff += RMIXL_FMN_BS_FIRST;
537			for (u_int bucket=0; bucket < buckets_max; bucket++) {
538				RMIXL_IOREG_WRITE(regoff, 0);
539				regoff += sizeof(uint32_t);
540			}
541		}
542	}
543}
544
545/*
546 * rmixl_fmn_config_core
547 *
548 *	- assumes fmn_mutex is owned
549 *	- configure FMN
550 *	- initialize bucket sizes and (minimum) credits for a core
551 */
552static void
553rmixl_fmn_config_core(fmn_t *fmnp)
554{
555	const fmn_station_info_t *info = fmnp->fmn_stinfo;
556	uint32_t sts1;
557	uint32_t cfg;
558	uint32_t cp0_status;
559
560	KASSERT(mutex_owned(fmnp->fmn_lock) != 0);
561	KASSERT(fmnp->fmn_thread == 0);
562	cp0_status = rmixl_cp2_enable();
563
564	/* check/clear any pre-existing status1 error(s) */
565	RMIXL_MFC2(RMIXL_COP_2_MSG_STS, 1, sts1);
566	if ((sts1 & RMIXL_MSG_STS1_ERRS) != 0)
567		RMIXL_MTC2(RMIXL_COP_2_MSG_STS, 1, sts1);
568
569	/* set up MsgConfig reg */
570	cfg = ((1 << RMIXL_MSG_CFG0_WMSHIFT)			/* watermark */
571	    |  (RMIXL_INTRVEC_FMN << RMIXL_MSG_CFG0_IV_SHIFT)	/* irq */
572	    |  (1 << RMIXL_MSG_CFG0_ITM_SHIFT)			/* thread mask */
573	    |   RMIXL_MSG_CFG0_WIE				/* watermark intr enb */
574	    |   RMIXL_MSG_CFG0_EIE);				/* rx not empty intr enb */
575	RMIXL_DMTC2(RMIXL_COP_2_MSG_CFG, 0, cfg);
576
577	/* disable trace mode, credit overrun intr, messaging errors intr */
578	RMIXL_DMTC2(RMIXL_COP_2_MSG_CFG, 0, 0);
579
580	/* XXX using 4 buckets per core */
581	KASSERT(4 <= info->si_buckets_max);
582
583	/*
584	 * initialize default sizes for core buckets
585	 * zero sizes for unused buckets
586	 */
587	KASSERT(info->si_buckets_max == 8);
588	uint32_t sz = info->si_bucket_size_dflt;
589	KASSERT((sz & ~RMIXL_MSG_BSZ_SIZE) == 0);
590	RMIXL_MTC2(RMIXL_COP_2_MSG_BSZ, 0, sz);
591	RMIXL_MTC2(RMIXL_COP_2_MSG_BSZ, 1, sz);
592	RMIXL_MTC2(RMIXL_COP_2_MSG_BSZ, 2, sz);
593	RMIXL_MTC2(RMIXL_COP_2_MSG_BSZ, 3, sz);
594	RMIXL_MTC2(RMIXL_COP_2_MSG_BSZ, 4, 0);
595	RMIXL_MTC2(RMIXL_COP_2_MSG_BSZ, 5, 0);
596	RMIXL_MTC2(RMIXL_COP_2_MSG_BSZ, 6, 0);
597	RMIXL_MTC2(RMIXL_COP_2_MSG_BSZ, 7, 0);
598
599	/*
600	 * configure minimum credits for each core, 4 buckets
601	 * zero all unused credit counters for this core
602	 */
603	uint32_t cr = info->si_credits_min;
604
605	FMN_CP2_4SEL_WRITE(RMIXL_COP_2_CREDITS,   0, cr);
606	FMN_CP2_4SEL_WRITE(RMIXL_COP_2_CREDITS,   4,  0);
607	FMN_CP2_4SEL_WRITE(RMIXL_COP_2_CREDITS+1, 0, cr);
608	FMN_CP2_4SEL_WRITE(RMIXL_COP_2_CREDITS+1, 4,  0);
609	FMN_CP2_4SEL_WRITE(RMIXL_COP_2_CREDITS+2, 0, cr);
610	FMN_CP2_4SEL_WRITE(RMIXL_COP_2_CREDITS+2, 4,  0);
611	FMN_CP2_4SEL_WRITE(RMIXL_COP_2_CREDITS+3, 0, cr);
612	FMN_CP2_4SEL_WRITE(RMIXL_COP_2_CREDITS+3, 4,  0);
613
614	FMN_CP2_8SEL_WRITE(RMIXL_COP_2_CREDITS+4,     0);
615	FMN_CP2_8SEL_WRITE(RMIXL_COP_2_CREDITS+5,     0);
616	FMN_CP2_8SEL_WRITE(RMIXL_COP_2_CREDITS+6,     0);
617	FMN_CP2_8SEL_WRITE(RMIXL_COP_2_CREDITS+7,     0);
618	FMN_CP2_8SEL_WRITE(RMIXL_COP_2_CREDITS+8,     0);
619	FMN_CP2_8SEL_WRITE(RMIXL_COP_2_CREDITS+9,     0);
620	FMN_CP2_8SEL_WRITE(RMIXL_COP_2_CREDITS+10,    0);
621	FMN_CP2_8SEL_WRITE(RMIXL_COP_2_CREDITS+11,    0);
622	FMN_CP2_8SEL_WRITE(RMIXL_COP_2_CREDITS+12,    0);
623	FMN_CP2_8SEL_WRITE(RMIXL_COP_2_CREDITS+13,    0);
624	FMN_CP2_8SEL_WRITE(RMIXL_COP_2_CREDITS+14,    0);
625	FMN_CP2_8SEL_WRITE(RMIXL_COP_2_CREDITS+15,    0);
626
627	RMIXL_MFC2(RMIXL_COP_2_MSG_STS, 1, sts1);
628	KASSERT((sts1 & RMIXL_MSG_STS1_ERRS) == 0);
629
630	rmixl_cp2_restore(cp0_status);
631}
632
633void
634rmixl_fmn_init_cpu_intr(void)
635{
636	fmn_t *fmnp;
637
638	fmnp = fmn_lookup(curcpu()->ci_cpuid);
639	mutex_enter(fmnp->fmn_lock);
640
641	for (int i=0; i < fmnp->fmn_nstid; i++)
642		evcnt_attach_dynamic(&fmnp->fmn_intrhand[i].ih_count,
643			EVCNT_TYPE_INTR, NULL, "rmixl_fmn", fmnp->fmn_stinfo[i].si_name);
644
645#ifdef NOTYET
646	/*
647	 * establish dispatcher for FMN interrupt
648	 */
649	extern kmutex_t rmixl_intr_lock;
650	void *ih;
651
652	mutex_enter(&rmixl_intr_lock);
653	ih = rmixl_vec_establish(RMIXL_INTRVEC_FMN, -1, RMIXL_FMN_INTR_IPL,
654		rmixl_fmn_intr_dispatch, fmnp, "fmn");
655	if (ih == NULL)
656		panic("%s: rmixl_vec_establish failed", __func__);
657	mutex_exit(&rmixl_intr_lock);
658	fmnp->fmn_ih = ih;
659#endif
660
661	mutex_exit(fmnp->fmn_lock);
662}
663
664void *
665rmixl_fmn_intr_establish(int txstid, int (*func)(void *, rmixl_fmn_rxmsg_t *), void *arg)
666{
667	fmn_t *fmnp;
668	fmn_intrhand_t *ih;
669
670	fmnp = fmn_lookup(curcpu()->ci_cpuid);
671
672	mutex_enter(fmnp->fmn_lock);
673
674	ih = &fmnp->fmn_intrhand[txstid];
675
676	if (ih->ih_func != NULL) {
677#ifdef DEBUG
678		panic("%s: intrhand[%d] busy", __func__, txstid);
679#endif
680		ih = NULL;
681	}  else {
682		ih->ih_func = func;
683		ih->ih_arg = arg;
684	}
685
686	mutex_exit(fmnp->fmn_lock);
687
688	return ih;
689}
690
691void
692rmixl_fmn_intr_disestablish(void *cookie)
693{
694	fmn_t *fmnp;
695	fmn_intrhand_t *ih = cookie;
696
697	fmnp = fmn_lookup(curcpu()->ci_cpuid);
698	mutex_enter(fmnp->fmn_lock);
699
700	if (ih->ih_func != NULL) {
701		ih->ih_func = NULL;
702		ih->ih_arg = NULL;
703	}
704#ifdef DEBUG
705	else {
706		panic("%s: intrhand[%ld] not in use",
707			__func__, ih - &fmnp->fmn_intrhand[0]);
708	}
709#endif
710
711	mutex_exit(fmnp->fmn_lock);
712}
713
714void
715rmixl_fmn_intr_poll(u_int bucket, rmixl_fmn_rxmsg_t *rxmsg)
716{
717	uint32_t bit = 1 << bucket;
718	uint32_t cp0_status;
719
720	KASSERT(bucket < 8);
721
722	cp0_status = rmixl_cp2_enable();
723
724	for(;;) {
725		rmixl_fmn_msgwait(bit);
726		if (rmixl_fmn_msg_recv(bucket, rxmsg) == 0)
727			break;
728		DELAY(10);		/* XXX */
729	}
730
731	rmixl_cp2_restore(cp0_status);
732}
733
734#ifdef NOTYET
735static int
736rmixl_fmn_intr_dispatch(void *arg)
737{
738	fmn_t *fmnp = arg;
739	uint32_t msg_status;
740	uint32_t cp0_status;
741	uint32_t rfbne;
742	int txstid;
743	int rv = 0;
744
745	mutex_enter(fmnp->fmn_lock);
746	cp0_status = rmixl_cp2_enable();
747
748	RMIXL_MFC2(RMIXL_COP_2_MSG_STS, 0, msg_status);
749	rfbne = (~msg_status) >> RMIXL_MSG_STS0_RFBE_SHIFT;
750
751	if (rfbne != 0) {
752		DPRINTF(("%s: rfbne %#x\n", __func__, rfbne));
753		for (u_int bucket=0; bucket < 8; bucket++) {
754			rmixl_fmn_rxmsg_t rxmsg;
755			fmn_intrhand_t *ih;
756
757			if ((rfbne & (1 << bucket)) == 0)
758				continue;
759			if (rmixl_fmn_msg_recv_subr(bucket, &rxmsg) != 0)
760				continue;
761			rv = 1;
762			txstid = fmnp->fmn_stidtab[rxmsg.rxsid];
763			ih = &fmnp->fmn_intrhand[txstid];
764			if (ih->ih_func != NULL)
765				if ((ih->ih_func)(ih->ih_arg, &rxmsg) != 0)
766					ih->ih_count.ev_count++;
767		}
768
769	}
770	rmixl_cp2_restore(cp0_status);
771	mutex_exit(fmnp->fmn_lock);
772
773	return rv;
774}
775#endif	/* NOTYET */
776
777int
778rmixl_fmn_msg_send(u_int size, u_int code, u_int dest_id, rmixl_fmn_msg_t *msg)
779{
780	fmn_t *fmnp;
781        uint32_t cp0_status;
782        uint32_t msg_status;
783        uint32_t msg_status1;
784	uint32_t desc;
785	int rv = 0;
786
787	KASSERT((size >= 1) && size <= 4);
788	KASSERT(code <= 0xff);
789	KASSERT(dest_id <= 0xff);
790
791	fmnp = fmn_lookup(curcpu()->ci_cpuid);
792	mutex_enter(fmnp->fmn_lock);
793        cp0_status = rmixl_cp2_enable();
794
795	switch(size) {
796	case 1:
797		RMIXL_DMTC2(RMIXL_COP_2_TXBUF, 0, msg->data[0]);
798		break;
799	case 2:
800		RMIXL_DMTC2(RMIXL_COP_2_TXBUF, 0, msg->data[0]);
801		RMIXL_DMTC2(RMIXL_COP_2_TXBUF, 1, msg->data[1]);
802		break;
803	case 3:
804		RMIXL_DMTC2(RMIXL_COP_2_TXBUF, 0, msg->data[0]);
805		RMIXL_DMTC2(RMIXL_COP_2_TXBUF, 1, msg->data[1]);
806		RMIXL_DMTC2(RMIXL_COP_2_TXBUF, 2, msg->data[2]);
807		break;
808	case 4:
809		RMIXL_DMTC2(RMIXL_COP_2_TXBUF, 0, msg->data[0]);
810		RMIXL_DMTC2(RMIXL_COP_2_TXBUF, 1, msg->data[1]);
811		RMIXL_DMTC2(RMIXL_COP_2_TXBUF, 2, msg->data[2]);
812		RMIXL_DMTC2(RMIXL_COP_2_TXBUF, 3, msg->data[3]);
813		break;
814	default:
815		DIAG_PRF(("%s: bad size %d", __func__, size));
816		rv = -1;
817		goto out;
818	}
819
820	for (int try=16; try--; ) {
821		RMIXL_MFC2(RMIXL_COP_2_MSG_STS, 0, msg_status);
822		if ((msg_status & (RMIXL_MSG_STS0_LPF|RMIXL_MSG_STS0_SPF|RMIXL_MSG_STS0_SMP)) == 0)
823			goto send;
824		DELAY(10);		/* XXX ??? */
825	}
826	DIAG_PRF(("%s: cpu%u, msg %p, dst_id=%d, sts=%#x: can't send\n",
827		__func__, cpu_number(), msg, dest_id, msg_status));
828	rv = -1;
829	goto out;
830 send:
831	desc = RMIXL_MSGSND_DESC(size, code, dest_id);
832	DPRINTF(("%s: cpu%u, desc %#x\n", __func__, cpu_number(), desc));
833	for (int try=16; try--; ) {
834		rmixl_msgsnd(desc);
835		RMIXL_MFC2(RMIXL_COP_2_MSG_STS, 0, msg_status);
836		RMIXL_MFC2(RMIXL_COP_2_MSG_STS, 1, msg_status1);
837		if (((msg_status  & RMIXL_MSG_STS0_SCF) == 0)
838		&&  ((msg_status1 & RMIXL_MSG_STS1_ERRS) == 0))
839			goto out;
840#if 0
841#ifdef DEBUG
842		if ((msg_status & RMIXL_MSG_STS0_SCF) != 0) {
843			uint32_t r;
844			u_int regno = RMIXL_COP_2_CREDITS+fmnp->fmn_core;
845			u_int sel = fmnp->fmn_thread;
846			printf("%s: CC[%d,%d]=", __func__, regno, sel);
847			FMN_CP2_RD_SWITCH_RW(READ, regno, sel, r);
848			printf("%s: CC[%d,%d]=%d\n", __func__, regno, sel, r);
849		}
850#endif	/* DEBUG */
851#endif	/* 0 */
852		/* clear status1 error(s) */
853		if ((msg_status1 & RMIXL_MSG_STS1_ERRS) != 0) {
854			RMIXL_MFC2(RMIXL_COP_2_MSG_STS, 1, msg_status1);
855			RMIXL_MTC2(RMIXL_COP_2_MSG_STS, 1, msg_status1);
856		}
857		DIAG_PRF(("%s: src=%ld, dst=%d, sts=%#x, %#x: send error, try %d\n",
858			__func__, curcpu()->ci_cpuid, dest_id, msg_status, msg_status1, try));
859		DELAY(10);
860	}
861	rv = -1;
862 out:
863	rmixl_cp2_restore(cp0_status);
864	mutex_exit(fmnp->fmn_lock);
865
866	return rv;
867}
868
869/*
870 * rmixl_fmn_msg_recv
871 *
872 *	- grab fmn_lock and call rmixl_fmn_msg_recv_subr to do the real work
873 *	- assume cp2 access is already enabled
874 */
875int
876rmixl_fmn_msg_recv(u_int bucket, rmixl_fmn_rxmsg_t *rxmsg)
877{
878	fmn_t *fmnp;
879	int rv;
880
881	fmnp = fmn_lookup(curcpu()->ci_cpuid);
882	mutex_enter(fmnp->fmn_lock);
883	rv = rmixl_fmn_msg_recv_subr(bucket, rxmsg);
884	mutex_exit(fmnp->fmn_lock);
885
886	return rv;
887}
888
889/*
890 * rmixl_fmn_msg_recv_subr
891 *
892 *	- assume fmn_lock is owned
893 *	- assume cp2 access is already enabled
894 */
895static int
896rmixl_fmn_msg_recv_subr(u_int bucket, rmixl_fmn_rxmsg_t *rxmsg)
897{
898	fmn_t *fmnp;
899	uint32_t msg_status = 0 /* XXXGCC12 */;
900	int rv;
901
902	fmnp = fmn_lookup(curcpu()->ci_cpuid);
903	KASSERT(mutex_owned(fmnp->fmn_lock) != 0);
904
905	for (int try=16; try--; ) {
906		RMIXL_MFC2(RMIXL_COP_2_MSG_STS, 0, msg_status);
907		if ((msg_status & (RMIXL_MSG_STS0_LPF)) == 0)
908			goto recv;
909	}
910	DIAG_PRF(("%s: cpu%u, bucket=%d, sts=%#x: Load Pending Fail\n",
911		__func__, cpu_number(), bucket, msg_status));
912	rv = -1;
913	goto out;
914 recv:
915	rmixl_msgld(bucket);
916	RMIXL_MFC2(RMIXL_COP_2_MSG_STS, 0, msg_status);
917	DPRINTF(("%s: cpu%u, bucket=%d, sts=%#x\n",
918		__func__, cpu_number(), bucket, msg_status));
919	rv = msg_status & (RMIXL_MSG_STS0_LEF|RMIXL_MSG_STS0_LPF);
920	if (rv == 0) {
921		rxmsg->rxsid = (msg_status & RMIXL_MSG_STS0_RMSID)
922				>> RMIXL_MSG_STS0_RMSID_SHIFT;
923		rxmsg->code = (msg_status & RMIXL_MSG_STS0_RMSC)
924				>> RMIXL_MSG_STS0_RMSC_SHIFT;
925		rxmsg->size = ((msg_status & RMIXL_MSG_STS0_RMS)
926				>> RMIXL_MSG_STS0_RMS_SHIFT) + 1;
927		switch(rxmsg->size) {
928		case 1:
929			RMIXL_DMFC2(RMIXL_COP_2_RXBUF, 0, rxmsg->msg.data[0]);
930			break;
931		case 2:
932			RMIXL_DMFC2(RMIXL_COP_2_RXBUF, 0, rxmsg->msg.data[0]);
933			RMIXL_DMFC2(RMIXL_COP_2_RXBUF, 1, rxmsg->msg.data[1]);
934			break;
935		case 3:
936			RMIXL_DMFC2(RMIXL_COP_2_RXBUF, 0, rxmsg->msg.data[0]);
937			RMIXL_DMFC2(RMIXL_COP_2_RXBUF, 1, rxmsg->msg.data[1]);
938			RMIXL_DMFC2(RMIXL_COP_2_RXBUF, 2, rxmsg->msg.data[2]);
939			break;
940		case 4:
941			RMIXL_DMFC2(RMIXL_COP_2_RXBUF, 0, rxmsg->msg.data[0]);
942			RMIXL_DMFC2(RMIXL_COP_2_RXBUF, 1, rxmsg->msg.data[1]);
943			RMIXL_DMFC2(RMIXL_COP_2_RXBUF, 2, rxmsg->msg.data[2]);
944			RMIXL_DMFC2(RMIXL_COP_2_RXBUF, 3, rxmsg->msg.data[3]);
945			break;
946		default:
947			/* "impossible" due to bitfield width */
948			panic("%s: bad size %d", __func__, rxmsg->size);
949		}
950	}
951 out:
952
953	return rv;
954}
955
956#ifdef FMN_DEBUG
957void
958rmixl_fmn_cp2_dump(void)
959{
960	uint32_t cp0_status;
961
962	cp0_status = rmixl_cp2_enable();
963
964	CPU2_PRINT_8(RMIXL_COP_2_TXBUF, 0);
965	CPU2_PRINT_8(RMIXL_COP_2_TXBUF, 1);
966	CPU2_PRINT_8(RMIXL_COP_2_TXBUF, 2);
967	CPU2_PRINT_8(RMIXL_COP_2_TXBUF, 3);
968
969	CPU2_PRINT_8(RMIXL_COP_2_RXBUF, 0);
970	CPU2_PRINT_8(RMIXL_COP_2_RXBUF, 1);
971	CPU2_PRINT_8(RMIXL_COP_2_RXBUF, 2);
972	CPU2_PRINT_8(RMIXL_COP_2_RXBUF, 3);
973
974	CPU2_PRINT_4(RMIXL_COP_2_MSG_STS, 0);
975	CPU2_PRINT_4(RMIXL_COP_2_MSG_STS, 1);
976
977	CPU2_PRINT_4(RMIXL_COP_2_MSG_CFG, 0);
978	CPU2_PRINT_4(RMIXL_COP_2_MSG_CFG, 1);
979
980	CPU2_PRINT_4(RMIXL_COP_2_MSG_BSZ, 0);
981	CPU2_PRINT_4(RMIXL_COP_2_MSG_BSZ, 1);
982	CPU2_PRINT_4(RMIXL_COP_2_MSG_BSZ, 2);
983	CPU2_PRINT_4(RMIXL_COP_2_MSG_BSZ, 3);
984	CPU2_PRINT_4(RMIXL_COP_2_MSG_BSZ, 4);
985	CPU2_PRINT_4(RMIXL_COP_2_MSG_BSZ, 5);
986	CPU2_PRINT_4(RMIXL_COP_2_MSG_BSZ, 6);
987	CPU2_PRINT_4(RMIXL_COP_2_MSG_BSZ, 7);
988
989	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 0, 0);
990	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 0, 1);
991	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 0, 2);
992	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 0, 3);
993	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 0, 4);
994	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 0, 5);
995	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 0, 6);
996	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 0, 7);
997
998	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 1, 0);
999	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 1, 1);
1000	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 1, 2);
1001	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 1, 3);
1002	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 1, 4);
1003	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 1, 5);
1004	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 1, 6);
1005	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 1, 7);
1006
1007	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 2, 0);
1008	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 2, 1);
1009	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 2, 2);
1010	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 2, 3);
1011	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 2, 4);
1012	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 2, 5);
1013	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 2, 6);
1014	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 2, 7);
1015
1016	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 3, 0);
1017	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 3, 1);
1018	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 3, 2);
1019	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 3, 3);
1020	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 3, 4);
1021	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 3, 5);
1022	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 3, 6);
1023	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 3, 7);
1024
1025	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 4, 0);
1026	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 4, 1);
1027	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 4, 2);
1028	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 4, 3);
1029	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 4, 4);
1030	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 4, 5);
1031	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 4, 6);
1032	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 4, 7);
1033
1034	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 5, 0);
1035	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 5, 1);
1036	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 5, 2);
1037	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 5, 3);
1038	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 5, 4);
1039	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 5, 5);
1040	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 5, 6);
1041	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 5, 7);
1042
1043	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 6, 0);
1044	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 6, 1);
1045	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 6, 2);
1046	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 6, 3);
1047	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 6, 4);
1048	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 6, 5);
1049	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 6, 6);
1050	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 6, 7);
1051
1052	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 7, 0);
1053	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 7, 1);
1054	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 7, 2);
1055	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 7, 3);
1056	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 7, 4);
1057	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 7, 5);
1058	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 7, 6);
1059	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 7, 7);
1060
1061	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 8, 0);
1062	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 8, 1);
1063	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 8, 2);
1064	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 8, 3);
1065	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 8, 4);
1066	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 8, 5);
1067	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 8, 6);
1068	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 8, 7);
1069
1070	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 9, 0);
1071	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 9, 1);
1072	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 9, 2);
1073	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 9, 3);
1074	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 9, 4);
1075	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 9, 5);
1076	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 9, 6);
1077	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 9, 7);
1078
1079	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 10, 0);
1080	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 10, 1);
1081	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 10, 2);
1082	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 10, 3);
1083	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 10, 4);
1084	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 10, 5);
1085	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 10, 6);
1086	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 10, 7);
1087
1088	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 11, 0);
1089	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 11, 1);
1090	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 11, 2);
1091	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 11, 3);
1092	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 11, 4);
1093	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 11, 5);
1094	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 11, 6);
1095	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 11, 7);
1096
1097	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 12, 0);
1098	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 12, 1);
1099	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 12, 2);
1100	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 12, 3);
1101	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 12, 4);
1102	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 12, 5);
1103	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 12, 6);
1104	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 12, 7);
1105
1106	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 13, 0);
1107	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 13, 1);
1108	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 13, 2);
1109	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 13, 3);
1110	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 13, 4);
1111	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 13, 5);
1112	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 13, 6);
1113	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 13, 7);
1114
1115	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 14, 0);
1116	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 14, 1);
1117	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 14, 2);
1118	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 14, 3);
1119	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 14, 4);
1120	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 14, 5);
1121	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 14, 6);
1122	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 14, 7);
1123
1124	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 15, 0);
1125	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 15, 1);
1126	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 15, 2);
1127	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 15, 3);
1128	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 15, 4);
1129	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 15, 5);
1130	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 15, 6);
1131	CPU2_PRINT_4(RMIXL_COP_2_CREDITS + 15, 7);
1132
1133	rmixl_cp2_restore(cp0_status);
1134}
1135
1136
1137void
1138rmixl_fmn_cc_dump(void)
1139{
1140	uint32_t cc[4][8];
1141
1142	FMN_CP2_4SEL_READ(RMIXL_COP_2_CREDITS,   0, &cc[0][0]);
1143	FMN_CP2_4SEL_READ(RMIXL_COP_2_CREDITS,   4, &cc[0][4]);
1144	FMN_CP2_4SEL_READ(RMIXL_COP_2_CREDITS+1, 0, &cc[1][0]);
1145	FMN_CP2_4SEL_READ(RMIXL_COP_2_CREDITS+1, 4, &cc[1][4]);
1146	FMN_CP2_4SEL_READ(RMIXL_COP_2_CREDITS+2, 0, &cc[2][0]);
1147	FMN_CP2_4SEL_READ(RMIXL_COP_2_CREDITS+2, 4, &cc[2][4]);
1148	FMN_CP2_4SEL_READ(RMIXL_COP_2_CREDITS+3, 0, &cc[3][0]);
1149	FMN_CP2_4SEL_READ(RMIXL_COP_2_CREDITS+3, 4, &cc[3][4]);
1150
1151	printf("%s: cpu%u\n", __func__, cpu_number());
1152	for (int i=0; i < 4; i++) {
1153		for (int j=0; j < 8; j++)
1154			printf(" %#x,", cc[i][j]);
1155		printf("\n");
1156	}
1157}
1158
1159#endif	/* FMN_DEBUG */
1160