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[linux/fpc-iii.git] / drivers / soc / fsl / qbman / qman_ccsr.c
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1 /* Copyright 2008 - 2016 Freescale Semiconductor, Inc.
3 * Redistribution and use in source and binary forms, with or without
4 * modification, are permitted provided that the following conditions are met:
5 * * Redistributions of source code must retain the above copyright
6 * notice, this list of conditions and the following disclaimer.
7 * * Redistributions in binary form must reproduce the above copyright
8 * notice, this list of conditions and the following disclaimer in the
9 * documentation and/or other materials provided with the distribution.
10 * * Neither the name of Freescale Semiconductor nor the
11 * names of its contributors may be used to endorse or promote products
12 * derived from this software without specific prior written permission.
14 * ALTERNATIVELY, this software may be distributed under the terms of the
15 * GNU General Public License ("GPL") as published by the Free Software
16 * Foundation, either version 2 of that License or (at your option) any
17 * later version.
19 * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #include "qman_priv.h"
33 u16 qman_ip_rev;
34 EXPORT_SYMBOL(qman_ip_rev);
35 u16 qm_channel_pool1 = QMAN_CHANNEL_POOL1;
36 EXPORT_SYMBOL(qm_channel_pool1);
37 u16 qm_channel_caam = QMAN_CHANNEL_CAAM;
38 EXPORT_SYMBOL(qm_channel_caam);
40 /* Register offsets */
41 #define REG_QCSP_LIO_CFG(n) (0x0000 + ((n) * 0x10))
42 #define REG_QCSP_IO_CFG(n) (0x0004 + ((n) * 0x10))
43 #define REG_QCSP_DD_CFG(n) (0x000c + ((n) * 0x10))
44 #define REG_DD_CFG 0x0200
45 #define REG_DCP_CFG(n) (0x0300 + ((n) * 0x10))
46 #define REG_DCP_DD_CFG(n) (0x0304 + ((n) * 0x10))
47 #define REG_DCP_DLM_AVG(n) (0x030c + ((n) * 0x10))
48 #define REG_PFDR_FPC 0x0400
49 #define REG_PFDR_FP_HEAD 0x0404
50 #define REG_PFDR_FP_TAIL 0x0408
51 #define REG_PFDR_FP_LWIT 0x0410
52 #define REG_PFDR_CFG 0x0414
53 #define REG_SFDR_CFG 0x0500
54 #define REG_SFDR_IN_USE 0x0504
55 #define REG_WQ_CS_CFG(n) (0x0600 + ((n) * 0x04))
56 #define REG_WQ_DEF_ENC_WQID 0x0630
57 #define REG_WQ_SC_DD_CFG(n) (0x640 + ((n) * 0x04))
58 #define REG_WQ_PC_DD_CFG(n) (0x680 + ((n) * 0x04))
59 #define REG_WQ_DC0_DD_CFG(n) (0x6c0 + ((n) * 0x04))
60 #define REG_WQ_DC1_DD_CFG(n) (0x700 + ((n) * 0x04))
61 #define REG_WQ_DCn_DD_CFG(n) (0x6c0 + ((n) * 0x40)) /* n=2,3 */
62 #define REG_CM_CFG 0x0800
63 #define REG_ECSR 0x0a00
64 #define REG_ECIR 0x0a04
65 #define REG_EADR 0x0a08
66 #define REG_ECIR2 0x0a0c
67 #define REG_EDATA(n) (0x0a10 + ((n) * 0x04))
68 #define REG_SBEC(n) (0x0a80 + ((n) * 0x04))
69 #define REG_MCR 0x0b00
70 #define REG_MCP(n) (0x0b04 + ((n) * 0x04))
71 #define REG_MISC_CFG 0x0be0
72 #define REG_HID_CFG 0x0bf0
73 #define REG_IDLE_STAT 0x0bf4
74 #define REG_IP_REV_1 0x0bf8
75 #define REG_IP_REV_2 0x0bfc
76 #define REG_FQD_BARE 0x0c00
77 #define REG_PFDR_BARE 0x0c20
78 #define REG_offset_BAR 0x0004 /* relative to REG_[FQD|PFDR]_BARE */
79 #define REG_offset_AR 0x0010 /* relative to REG_[FQD|PFDR]_BARE */
80 #define REG_QCSP_BARE 0x0c80
81 #define REG_QCSP_BAR 0x0c84
82 #define REG_CI_SCHED_CFG 0x0d00
83 #define REG_SRCIDR 0x0d04
84 #define REG_LIODNR 0x0d08
85 #define REG_CI_RLM_AVG 0x0d14
86 #define REG_ERR_ISR 0x0e00
87 #define REG_ERR_IER 0x0e04
88 #define REG_REV3_QCSP_LIO_CFG(n) (0x1000 + ((n) * 0x10))
89 #define REG_REV3_QCSP_IO_CFG(n) (0x1004 + ((n) * 0x10))
90 #define REG_REV3_QCSP_DD_CFG(n) (0x100c + ((n) * 0x10))
92 /* Assists for QMAN_MCR */
93 #define MCR_INIT_PFDR 0x01000000
94 #define MCR_get_rslt(v) (u8)((v) >> 24)
95 #define MCR_rslt_idle(r) (!(r) || ((r) >= 0xf0))
96 #define MCR_rslt_ok(r) ((r) == 0xf0)
97 #define MCR_rslt_eaccess(r) ((r) == 0xf8)
98 #define MCR_rslt_inval(r) ((r) == 0xff)
101 * Corenet initiator settings. Stash request queues are 4-deep to match cores
102 * ability to snarf. Stash priority is 3, other priorities are 2.
104 #define QM_CI_SCHED_CFG_SRCCIV 4
105 #define QM_CI_SCHED_CFG_SRQ_W 3
106 #define QM_CI_SCHED_CFG_RW_W 2
107 #define QM_CI_SCHED_CFG_BMAN_W 2
108 /* write SRCCIV enable */
109 #define QM_CI_SCHED_CFG_SRCCIV_EN BIT(31)
111 /* Follows WQ_CS_CFG0-5 */
112 enum qm_wq_class {
113 qm_wq_portal = 0,
114 qm_wq_pool = 1,
115 qm_wq_fman0 = 2,
116 qm_wq_fman1 = 3,
117 qm_wq_caam = 4,
118 qm_wq_pme = 5,
119 qm_wq_first = qm_wq_portal,
120 qm_wq_last = qm_wq_pme
123 /* Follows FQD_[BARE|BAR|AR] and PFDR_[BARE|BAR|AR] */
124 enum qm_memory {
125 qm_memory_fqd,
126 qm_memory_pfdr
129 /* Used by all error interrupt registers except 'inhibit' */
130 #define QM_EIRQ_CIDE 0x20000000 /* Corenet Initiator Data Error */
131 #define QM_EIRQ_CTDE 0x10000000 /* Corenet Target Data Error */
132 #define QM_EIRQ_CITT 0x08000000 /* Corenet Invalid Target Transaction */
133 #define QM_EIRQ_PLWI 0x04000000 /* PFDR Low Watermark */
134 #define QM_EIRQ_MBEI 0x02000000 /* Multi-bit ECC Error */
135 #define QM_EIRQ_SBEI 0x01000000 /* Single-bit ECC Error */
136 #define QM_EIRQ_PEBI 0x00800000 /* PFDR Enqueues Blocked Interrupt */
137 #define QM_EIRQ_IFSI 0x00020000 /* Invalid FQ Flow Control State */
138 #define QM_EIRQ_ICVI 0x00010000 /* Invalid Command Verb */
139 #define QM_EIRQ_IDDI 0x00000800 /* Invalid Dequeue (Direct-connect) */
140 #define QM_EIRQ_IDFI 0x00000400 /* Invalid Dequeue FQ */
141 #define QM_EIRQ_IDSI 0x00000200 /* Invalid Dequeue Source */
142 #define QM_EIRQ_IDQI 0x00000100 /* Invalid Dequeue Queue */
143 #define QM_EIRQ_IECE 0x00000010 /* Invalid Enqueue Configuration */
144 #define QM_EIRQ_IEOI 0x00000008 /* Invalid Enqueue Overflow */
145 #define QM_EIRQ_IESI 0x00000004 /* Invalid Enqueue State */
146 #define QM_EIRQ_IECI 0x00000002 /* Invalid Enqueue Channel */
147 #define QM_EIRQ_IEQI 0x00000001 /* Invalid Enqueue Queue */
149 /* QMAN_ECIR valid error bit */
150 #define PORTAL_ECSR_ERR (QM_EIRQ_IEQI | QM_EIRQ_IESI | QM_EIRQ_IEOI | \
151 QM_EIRQ_IDQI | QM_EIRQ_IDSI | QM_EIRQ_IDFI | \
152 QM_EIRQ_IDDI | QM_EIRQ_ICVI | QM_EIRQ_IFSI)
153 #define FQID_ECSR_ERR (QM_EIRQ_IEQI | QM_EIRQ_IECI | QM_EIRQ_IESI | \
154 QM_EIRQ_IEOI | QM_EIRQ_IDQI | QM_EIRQ_IDFI | \
155 QM_EIRQ_IFSI)
157 struct qm_ecir {
158 u32 info; /* res[30-31], ptyp[29], pnum[24-28], fqid[0-23] */
161 static bool qm_ecir_is_dcp(const struct qm_ecir *p)
163 return p->info & BIT(29);
166 static int qm_ecir_get_pnum(const struct qm_ecir *p)
168 return (p->info >> 24) & 0x1f;
171 static int qm_ecir_get_fqid(const struct qm_ecir *p)
173 return p->info & (BIT(24) - 1);
176 struct qm_ecir2 {
177 u32 info; /* ptyp[31], res[10-30], pnum[0-9] */
180 static bool qm_ecir2_is_dcp(const struct qm_ecir2 *p)
182 return p->info & BIT(31);
185 static int qm_ecir2_get_pnum(const struct qm_ecir2 *p)
187 return p->info & (BIT(10) - 1);
190 struct qm_eadr {
191 u32 info; /* memid[24-27], eadr[0-11] */
192 /* v3: memid[24-28], eadr[0-15] */
195 static int qm_eadr_get_memid(const struct qm_eadr *p)
197 return (p->info >> 24) & 0xf;
200 static int qm_eadr_get_eadr(const struct qm_eadr *p)
202 return p->info & (BIT(12) - 1);
205 static int qm_eadr_v3_get_memid(const struct qm_eadr *p)
207 return (p->info >> 24) & 0x1f;
210 static int qm_eadr_v3_get_eadr(const struct qm_eadr *p)
212 return p->info & (BIT(16) - 1);
215 struct qman_hwerr_txt {
216 u32 mask;
217 const char *txt;
221 static const struct qman_hwerr_txt qman_hwerr_txts[] = {
222 { QM_EIRQ_CIDE, "Corenet Initiator Data Error" },
223 { QM_EIRQ_CTDE, "Corenet Target Data Error" },
224 { QM_EIRQ_CITT, "Corenet Invalid Target Transaction" },
225 { QM_EIRQ_PLWI, "PFDR Low Watermark" },
226 { QM_EIRQ_MBEI, "Multi-bit ECC Error" },
227 { QM_EIRQ_SBEI, "Single-bit ECC Error" },
228 { QM_EIRQ_PEBI, "PFDR Enqueues Blocked Interrupt" },
229 { QM_EIRQ_ICVI, "Invalid Command Verb" },
230 { QM_EIRQ_IFSI, "Invalid Flow Control State" },
231 { QM_EIRQ_IDDI, "Invalid Dequeue (Direct-connect)" },
232 { QM_EIRQ_IDFI, "Invalid Dequeue FQ" },
233 { QM_EIRQ_IDSI, "Invalid Dequeue Source" },
234 { QM_EIRQ_IDQI, "Invalid Dequeue Queue" },
235 { QM_EIRQ_IECE, "Invalid Enqueue Configuration" },
236 { QM_EIRQ_IEOI, "Invalid Enqueue Overflow" },
237 { QM_EIRQ_IESI, "Invalid Enqueue State" },
238 { QM_EIRQ_IECI, "Invalid Enqueue Channel" },
239 { QM_EIRQ_IEQI, "Invalid Enqueue Queue" },
242 struct qman_error_info_mdata {
243 u16 addr_mask;
244 u16 bits;
245 const char *txt;
248 static const struct qman_error_info_mdata error_mdata[] = {
249 { 0x01FF, 24, "FQD cache tag memory 0" },
250 { 0x01FF, 24, "FQD cache tag memory 1" },
251 { 0x01FF, 24, "FQD cache tag memory 2" },
252 { 0x01FF, 24, "FQD cache tag memory 3" },
253 { 0x0FFF, 512, "FQD cache memory" },
254 { 0x07FF, 128, "SFDR memory" },
255 { 0x01FF, 72, "WQ context memory" },
256 { 0x00FF, 240, "CGR memory" },
257 { 0x00FF, 302, "Internal Order Restoration List memory" },
258 { 0x01FF, 256, "SW portal ring memory" },
261 #define QMAN_ERRS_TO_DISABLE (QM_EIRQ_PLWI | QM_EIRQ_PEBI)
264 * TODO: unimplemented registers
266 * Keeping a list here of QMan registers I have not yet covered;
267 * QCSP_DD_IHRSR, QCSP_DD_IHRFR, QCSP_DD_HASR,
268 * DCP_DD_IHRSR, DCP_DD_IHRFR, DCP_DD_HASR, CM_CFG,
269 * QMAN_EECC, QMAN_SBET, QMAN_EINJ, QMAN_SBEC0-12
272 /* Pointer to the start of the QMan's CCSR space */
273 static u32 __iomem *qm_ccsr_start;
274 /* A SDQCR mask comprising all the available/visible pool channels */
275 static u32 qm_pools_sdqcr;
277 static inline u32 qm_ccsr_in(u32 offset)
279 return ioread32be(qm_ccsr_start + offset/4);
282 static inline void qm_ccsr_out(u32 offset, u32 val)
284 iowrite32be(val, qm_ccsr_start + offset/4);
287 u32 qm_get_pools_sdqcr(void)
289 return qm_pools_sdqcr;
292 enum qm_dc_portal {
293 qm_dc_portal_fman0 = 0,
294 qm_dc_portal_fman1 = 1
297 static void qm_set_dc(enum qm_dc_portal portal, int ed, u8 sernd)
299 DPAA_ASSERT(!ed || portal == qm_dc_portal_fman0 ||
300 portal == qm_dc_portal_fman1);
301 if ((qman_ip_rev & 0xFF00) >= QMAN_REV30)
302 qm_ccsr_out(REG_DCP_CFG(portal),
303 (ed ? 0x1000 : 0) | (sernd & 0x3ff));
304 else
305 qm_ccsr_out(REG_DCP_CFG(portal),
306 (ed ? 0x100 : 0) | (sernd & 0x1f));
309 static void qm_set_wq_scheduling(enum qm_wq_class wq_class,
310 u8 cs_elev, u8 csw2, u8 csw3, u8 csw4,
311 u8 csw5, u8 csw6, u8 csw7)
313 qm_ccsr_out(REG_WQ_CS_CFG(wq_class), ((cs_elev & 0xff) << 24) |
314 ((csw2 & 0x7) << 20) | ((csw3 & 0x7) << 16) |
315 ((csw4 & 0x7) << 12) | ((csw5 & 0x7) << 8) |
316 ((csw6 & 0x7) << 4) | (csw7 & 0x7));
319 static void qm_set_hid(void)
321 qm_ccsr_out(REG_HID_CFG, 0);
324 static void qm_set_corenet_initiator(void)
326 qm_ccsr_out(REG_CI_SCHED_CFG, QM_CI_SCHED_CFG_SRCCIV_EN |
327 (QM_CI_SCHED_CFG_SRCCIV << 24) |
328 (QM_CI_SCHED_CFG_SRQ_W << 8) |
329 (QM_CI_SCHED_CFG_RW_W << 4) |
330 QM_CI_SCHED_CFG_BMAN_W);
333 static void qm_get_version(u16 *id, u8 *major, u8 *minor)
335 u32 v = qm_ccsr_in(REG_IP_REV_1);
336 *id = (v >> 16);
337 *major = (v >> 8) & 0xff;
338 *minor = v & 0xff;
341 #define PFDR_AR_EN BIT(31)
342 static void qm_set_memory(enum qm_memory memory, u64 ba, u32 size)
344 u32 offset = (memory == qm_memory_fqd) ? REG_FQD_BARE : REG_PFDR_BARE;
345 u32 exp = ilog2(size);
347 /* choke if size isn't within range */
348 DPAA_ASSERT((size >= 4096) && (size <= 1024*1024*1024) &&
349 is_power_of_2(size));
350 /* choke if 'ba' has lower-alignment than 'size' */
351 DPAA_ASSERT(!(ba & (size - 1)));
352 qm_ccsr_out(offset, upper_32_bits(ba));
353 qm_ccsr_out(offset + REG_offset_BAR, lower_32_bits(ba));
354 qm_ccsr_out(offset + REG_offset_AR, PFDR_AR_EN | (exp - 1));
357 static void qm_set_pfdr_threshold(u32 th, u8 k)
359 qm_ccsr_out(REG_PFDR_FP_LWIT, th & 0xffffff);
360 qm_ccsr_out(REG_PFDR_CFG, k);
363 static void qm_set_sfdr_threshold(u16 th)
365 qm_ccsr_out(REG_SFDR_CFG, th & 0x3ff);
368 static int qm_init_pfdr(struct device *dev, u32 pfdr_start, u32 num)
370 u8 rslt = MCR_get_rslt(qm_ccsr_in(REG_MCR));
372 DPAA_ASSERT(pfdr_start && !(pfdr_start & 7) && !(num & 7) && num);
373 /* Make sure the command interface is 'idle' */
374 if (!MCR_rslt_idle(rslt)) {
375 dev_crit(dev, "QMAN_MCR isn't idle");
376 WARN_ON(1);
379 /* Write the MCR command params then the verb */
380 qm_ccsr_out(REG_MCP(0), pfdr_start);
382 * TODO: remove this - it's a workaround for a model bug that is
383 * corrected in more recent versions. We use the workaround until
384 * everyone has upgraded.
386 qm_ccsr_out(REG_MCP(1), pfdr_start + num - 16);
387 dma_wmb();
388 qm_ccsr_out(REG_MCR, MCR_INIT_PFDR);
389 /* Poll for the result */
390 do {
391 rslt = MCR_get_rslt(qm_ccsr_in(REG_MCR));
392 } while (!MCR_rslt_idle(rslt));
393 if (MCR_rslt_ok(rslt))
394 return 0;
395 if (MCR_rslt_eaccess(rslt))
396 return -EACCES;
397 if (MCR_rslt_inval(rslt))
398 return -EINVAL;
399 dev_crit(dev, "Unexpected result from MCR_INIT_PFDR: %02x\n", rslt);
400 return -ENODEV;
404 * QMan needs two global memory areas initialized at boot time:
405 * 1) FQD: Frame Queue Descriptors used to manage frame queues
406 * 2) PFDR: Packed Frame Queue Descriptor Records used to store frames
407 * Both areas are reserved using the device tree reserved memory framework
408 * and the addresses and sizes are initialized when the QMan device is probed
410 static dma_addr_t fqd_a, pfdr_a;
411 static size_t fqd_sz, pfdr_sz;
413 #ifdef CONFIG_PPC
415 * Support for PPC Device Tree backward compatibility when compatible
416 * string is set to fsl-qman-fqd and fsl-qman-pfdr
418 static int zero_priv_mem(phys_addr_t addr, size_t sz)
420 /* map as cacheable, non-guarded */
421 void __iomem *tmpp = ioremap_prot(addr, sz, 0);
423 if (!tmpp)
424 return -ENOMEM;
426 memset_io(tmpp, 0, sz);
427 flush_dcache_range((unsigned long)tmpp,
428 (unsigned long)tmpp + sz);
429 iounmap(tmpp);
431 return 0;
434 static int qman_fqd(struct reserved_mem *rmem)
436 fqd_a = rmem->base;
437 fqd_sz = rmem->size;
439 WARN_ON(!(fqd_a && fqd_sz));
440 return 0;
442 RESERVEDMEM_OF_DECLARE(qman_fqd, "fsl,qman-fqd", qman_fqd);
444 static int qman_pfdr(struct reserved_mem *rmem)
446 pfdr_a = rmem->base;
447 pfdr_sz = rmem->size;
449 WARN_ON(!(pfdr_a && pfdr_sz));
451 return 0;
453 RESERVEDMEM_OF_DECLARE(qman_pfdr, "fsl,qman-pfdr", qman_pfdr);
455 #endif
457 static unsigned int qm_get_fqid_maxcnt(void)
459 return fqd_sz / 64;
462 static void log_edata_bits(struct device *dev, u32 bit_count)
464 u32 i, j, mask = 0xffffffff;
466 dev_warn(dev, "ErrInt, EDATA:\n");
467 i = bit_count / 32;
468 if (bit_count % 32) {
469 i++;
470 mask = ~(mask << bit_count % 32);
472 j = 16 - i;
473 dev_warn(dev, " 0x%08x\n", qm_ccsr_in(REG_EDATA(j)) & mask);
474 j++;
475 for (; j < 16; j++)
476 dev_warn(dev, " 0x%08x\n", qm_ccsr_in(REG_EDATA(j)));
479 static void log_additional_error_info(struct device *dev, u32 isr_val,
480 u32 ecsr_val)
482 struct qm_ecir ecir_val;
483 struct qm_eadr eadr_val;
484 int memid;
486 ecir_val.info = qm_ccsr_in(REG_ECIR);
487 /* Is portal info valid */
488 if ((qman_ip_rev & 0xFF00) >= QMAN_REV30) {
489 struct qm_ecir2 ecir2_val;
491 ecir2_val.info = qm_ccsr_in(REG_ECIR2);
492 if (ecsr_val & PORTAL_ECSR_ERR) {
493 dev_warn(dev, "ErrInt: %s id %d\n",
494 qm_ecir2_is_dcp(&ecir2_val) ? "DCP" : "SWP",
495 qm_ecir2_get_pnum(&ecir2_val));
497 if (ecsr_val & (FQID_ECSR_ERR | QM_EIRQ_IECE))
498 dev_warn(dev, "ErrInt: ecir.fqid 0x%x\n",
499 qm_ecir_get_fqid(&ecir_val));
501 if (ecsr_val & (QM_EIRQ_SBEI|QM_EIRQ_MBEI)) {
502 eadr_val.info = qm_ccsr_in(REG_EADR);
503 memid = qm_eadr_v3_get_memid(&eadr_val);
504 dev_warn(dev, "ErrInt: EADR Memory: %s, 0x%x\n",
505 error_mdata[memid].txt,
506 error_mdata[memid].addr_mask
507 & qm_eadr_v3_get_eadr(&eadr_val));
508 log_edata_bits(dev, error_mdata[memid].bits);
510 } else {
511 if (ecsr_val & PORTAL_ECSR_ERR) {
512 dev_warn(dev, "ErrInt: %s id %d\n",
513 qm_ecir_is_dcp(&ecir_val) ? "DCP" : "SWP",
514 qm_ecir_get_pnum(&ecir_val));
516 if (ecsr_val & FQID_ECSR_ERR)
517 dev_warn(dev, "ErrInt: ecir.fqid 0x%x\n",
518 qm_ecir_get_fqid(&ecir_val));
520 if (ecsr_val & (QM_EIRQ_SBEI|QM_EIRQ_MBEI)) {
521 eadr_val.info = qm_ccsr_in(REG_EADR);
522 memid = qm_eadr_get_memid(&eadr_val);
523 dev_warn(dev, "ErrInt: EADR Memory: %s, 0x%x\n",
524 error_mdata[memid].txt,
525 error_mdata[memid].addr_mask
526 & qm_eadr_get_eadr(&eadr_val));
527 log_edata_bits(dev, error_mdata[memid].bits);
532 static irqreturn_t qman_isr(int irq, void *ptr)
534 u32 isr_val, ier_val, ecsr_val, isr_mask, i;
535 struct device *dev = ptr;
537 ier_val = qm_ccsr_in(REG_ERR_IER);
538 isr_val = qm_ccsr_in(REG_ERR_ISR);
539 ecsr_val = qm_ccsr_in(REG_ECSR);
540 isr_mask = isr_val & ier_val;
542 if (!isr_mask)
543 return IRQ_NONE;
545 for (i = 0; i < ARRAY_SIZE(qman_hwerr_txts); i++) {
546 if (qman_hwerr_txts[i].mask & isr_mask) {
547 dev_err_ratelimited(dev, "ErrInt: %s\n",
548 qman_hwerr_txts[i].txt);
549 if (qman_hwerr_txts[i].mask & ecsr_val) {
550 log_additional_error_info(dev, isr_mask,
551 ecsr_val);
552 /* Re-arm error capture registers */
553 qm_ccsr_out(REG_ECSR, ecsr_val);
555 if (qman_hwerr_txts[i].mask & QMAN_ERRS_TO_DISABLE) {
556 dev_dbg(dev, "Disabling error 0x%x\n",
557 qman_hwerr_txts[i].mask);
558 ier_val &= ~qman_hwerr_txts[i].mask;
559 qm_ccsr_out(REG_ERR_IER, ier_val);
563 qm_ccsr_out(REG_ERR_ISR, isr_val);
565 return IRQ_HANDLED;
568 static int qman_init_ccsr(struct device *dev)
570 int i, err;
572 /* FQD memory */
573 qm_set_memory(qm_memory_fqd, fqd_a, fqd_sz);
574 /* PFDR memory */
575 qm_set_memory(qm_memory_pfdr, pfdr_a, pfdr_sz);
576 err = qm_init_pfdr(dev, 8, pfdr_sz / 64 - 8);
577 if (err)
578 return err;
579 /* thresholds */
580 qm_set_pfdr_threshold(512, 64);
581 qm_set_sfdr_threshold(128);
582 /* clear stale PEBI bit from interrupt status register */
583 qm_ccsr_out(REG_ERR_ISR, QM_EIRQ_PEBI);
584 /* corenet initiator settings */
585 qm_set_corenet_initiator();
586 /* HID settings */
587 qm_set_hid();
588 /* Set scheduling weights to defaults */
589 for (i = qm_wq_first; i <= qm_wq_last; i++)
590 qm_set_wq_scheduling(i, 0, 0, 0, 0, 0, 0, 0);
591 /* We are not prepared to accept ERNs for hardware enqueues */
592 qm_set_dc(qm_dc_portal_fman0, 1, 0);
593 qm_set_dc(qm_dc_portal_fman1, 1, 0);
594 return 0;
597 #define LIO_CFG_LIODN_MASK 0x0fff0000
598 void qman_liodn_fixup(u16 channel)
600 static int done;
601 static u32 liodn_offset;
602 u32 before, after;
603 int idx = channel - QM_CHANNEL_SWPORTAL0;
605 if ((qman_ip_rev & 0xFF00) >= QMAN_REV30)
606 before = qm_ccsr_in(REG_REV3_QCSP_LIO_CFG(idx));
607 else
608 before = qm_ccsr_in(REG_QCSP_LIO_CFG(idx));
609 if (!done) {
610 liodn_offset = before & LIO_CFG_LIODN_MASK;
611 done = 1;
612 return;
614 after = (before & (~LIO_CFG_LIODN_MASK)) | liodn_offset;
615 if ((qman_ip_rev & 0xFF00) >= QMAN_REV30)
616 qm_ccsr_out(REG_REV3_QCSP_LIO_CFG(idx), after);
617 else
618 qm_ccsr_out(REG_QCSP_LIO_CFG(idx), after);
621 #define IO_CFG_SDEST_MASK 0x00ff0000
622 void qman_set_sdest(u16 channel, unsigned int cpu_idx)
624 int idx = channel - QM_CHANNEL_SWPORTAL0;
625 u32 before, after;
627 if ((qman_ip_rev & 0xFF00) >= QMAN_REV30) {
628 before = qm_ccsr_in(REG_REV3_QCSP_IO_CFG(idx));
629 /* Each pair of vcpu share the same SRQ(SDEST) */
630 cpu_idx /= 2;
631 after = (before & (~IO_CFG_SDEST_MASK)) | (cpu_idx << 16);
632 qm_ccsr_out(REG_REV3_QCSP_IO_CFG(idx), after);
633 } else {
634 before = qm_ccsr_in(REG_QCSP_IO_CFG(idx));
635 after = (before & (~IO_CFG_SDEST_MASK)) | (cpu_idx << 16);
636 qm_ccsr_out(REG_QCSP_IO_CFG(idx), after);
640 static int qman_resource_init(struct device *dev)
642 int pool_chan_num, cgrid_num;
643 int ret, i;
645 switch (qman_ip_rev >> 8) {
646 case 1:
647 pool_chan_num = 15;
648 cgrid_num = 256;
649 break;
650 case 2:
651 pool_chan_num = 3;
652 cgrid_num = 64;
653 break;
654 case 3:
655 pool_chan_num = 15;
656 cgrid_num = 256;
657 break;
658 default:
659 return -ENODEV;
662 ret = gen_pool_add(qm_qpalloc, qm_channel_pool1 | DPAA_GENALLOC_OFF,
663 pool_chan_num, -1);
664 if (ret) {
665 dev_err(dev, "Failed to seed pool channels (%d)\n", ret);
666 return ret;
669 ret = gen_pool_add(qm_cgralloc, DPAA_GENALLOC_OFF, cgrid_num, -1);
670 if (ret) {
671 dev_err(dev, "Failed to seed CGRID range (%d)\n", ret);
672 return ret;
675 /* parse pool channels into the SDQCR mask */
676 for (i = 0; i < cgrid_num; i++)
677 qm_pools_sdqcr |= QM_SDQCR_CHANNELS_POOL_CONV(i);
679 ret = gen_pool_add(qm_fqalloc, QM_FQID_RANGE_START | DPAA_GENALLOC_OFF,
680 qm_get_fqid_maxcnt() - QM_FQID_RANGE_START, -1);
681 if (ret) {
682 dev_err(dev, "Failed to seed FQID range (%d)\n", ret);
683 return ret;
686 return 0;
689 static int fsl_qman_probe(struct platform_device *pdev)
691 struct device *dev = &pdev->dev;
692 struct device_node *node = dev->of_node;
693 struct resource *res;
694 int ret, err_irq;
695 u16 id;
696 u8 major, minor;
698 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
699 if (!res) {
700 dev_err(dev, "Can't get %pOF property 'IORESOURCE_MEM'\n",
701 node);
702 return -ENXIO;
704 qm_ccsr_start = devm_ioremap(dev, res->start, resource_size(res));
705 if (!qm_ccsr_start)
706 return -ENXIO;
708 qm_get_version(&id, &major, &minor);
709 if (major == 1 && minor == 0) {
710 dev_err(dev, "Rev1.0 on P4080 rev1 is not supported!\n");
711 return -ENODEV;
712 } else if (major == 1 && minor == 1)
713 qman_ip_rev = QMAN_REV11;
714 else if (major == 1 && minor == 2)
715 qman_ip_rev = QMAN_REV12;
716 else if (major == 2 && minor == 0)
717 qman_ip_rev = QMAN_REV20;
718 else if (major == 3 && minor == 0)
719 qman_ip_rev = QMAN_REV30;
720 else if (major == 3 && minor == 1)
721 qman_ip_rev = QMAN_REV31;
722 else if (major == 3 && minor == 2)
723 qman_ip_rev = QMAN_REV32;
724 else {
725 dev_err(dev, "Unknown QMan version\n");
726 return -ENODEV;
729 if ((qman_ip_rev & 0xff00) >= QMAN_REV30) {
730 qm_channel_pool1 = QMAN_CHANNEL_POOL1_REV3;
731 qm_channel_caam = QMAN_CHANNEL_CAAM_REV3;
734 if (fqd_a) {
735 #ifdef CONFIG_PPC
737 * For PPC backward DT compatibility
738 * FQD memory MUST be zero'd by software
740 zero_priv_mem(fqd_a, fqd_sz);
741 #else
742 WARN(1, "Unexpected architecture using non shared-dma-mem reservations");
743 #endif
744 } else {
746 * Order of memory regions is assumed as FQD followed by PFDR
747 * in order to ensure allocations from the correct regions the
748 * driver initializes then allocates each piece in order
750 ret = qbman_init_private_mem(dev, 0, &fqd_a, &fqd_sz);
751 if (ret) {
752 dev_err(dev, "qbman_init_private_mem() for FQD failed 0x%x\n",
753 ret);
754 return -ENODEV;
757 dev_dbg(dev, "Allocated FQD 0x%llx 0x%zx\n", fqd_a, fqd_sz);
759 if (!pfdr_a) {
760 /* Setup PFDR memory */
761 ret = qbman_init_private_mem(dev, 1, &pfdr_a, &pfdr_sz);
762 if (ret) {
763 dev_err(dev, "qbman_init_private_mem() for PFDR failed 0x%x\n",
764 ret);
765 return -ENODEV;
768 dev_dbg(dev, "Allocated PFDR 0x%llx 0x%zx\n", pfdr_a, pfdr_sz);
770 ret = qman_init_ccsr(dev);
771 if (ret) {
772 dev_err(dev, "CCSR setup failed\n");
773 return ret;
776 err_irq = platform_get_irq(pdev, 0);
777 if (err_irq <= 0) {
778 dev_info(dev, "Can't get %pOF property 'interrupts'\n",
779 node);
780 return -ENODEV;
782 ret = devm_request_irq(dev, err_irq, qman_isr, IRQF_SHARED, "qman-err",
783 dev);
784 if (ret) {
785 dev_err(dev, "devm_request_irq() failed %d for '%pOF'\n",
786 ret, node);
787 return ret;
791 * Write-to-clear any stale bits, (eg. starvation being asserted prior
792 * to resource allocation during driver init).
794 qm_ccsr_out(REG_ERR_ISR, 0xffffffff);
795 /* Enable Error Interrupts */
796 qm_ccsr_out(REG_ERR_IER, 0xffffffff);
798 qm_fqalloc = devm_gen_pool_create(dev, 0, -1, "qman-fqalloc");
799 if (IS_ERR(qm_fqalloc)) {
800 ret = PTR_ERR(qm_fqalloc);
801 dev_err(dev, "qman-fqalloc pool init failed (%d)\n", ret);
802 return ret;
805 qm_qpalloc = devm_gen_pool_create(dev, 0, -1, "qman-qpalloc");
806 if (IS_ERR(qm_qpalloc)) {
807 ret = PTR_ERR(qm_qpalloc);
808 dev_err(dev, "qman-qpalloc pool init failed (%d)\n", ret);
809 return ret;
812 qm_cgralloc = devm_gen_pool_create(dev, 0, -1, "qman-cgralloc");
813 if (IS_ERR(qm_cgralloc)) {
814 ret = PTR_ERR(qm_cgralloc);
815 dev_err(dev, "qman-cgralloc pool init failed (%d)\n", ret);
816 return ret;
819 ret = qman_resource_init(dev);
820 if (ret)
821 return ret;
823 ret = qman_alloc_fq_table(qm_get_fqid_maxcnt());
824 if (ret)
825 return ret;
827 ret = qman_wq_alloc();
828 if (ret)
829 return ret;
831 return 0;
834 static const struct of_device_id fsl_qman_ids[] = {
836 .compatible = "fsl,qman",
841 static struct platform_driver fsl_qman_driver = {
842 .driver = {
843 .name = KBUILD_MODNAME,
844 .of_match_table = fsl_qman_ids,
845 .suppress_bind_attrs = true,
847 .probe = fsl_qman_probe,
850 builtin_platform_driver(fsl_qman_driver);