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-rw-r--r--drivers/soc/fsl/qbman/Makefile5
-rw-r--r--drivers/soc/fsl/qbman/qman.c2881
-rw-r--r--drivers/soc/fsl/qbman/qman_ccsr.c808
-rw-r--r--drivers/soc/fsl/qbman/qman_portal.c355
-rw-r--r--drivers/soc/fsl/qbman/qman_priv.h371
5 files changed, 4418 insertions, 2 deletions
diff --git a/drivers/soc/fsl/qbman/Makefile b/drivers/soc/fsl/qbman/Makefile
index 855c3ac0f89e..6e0ee30b2834 100644
--- a/drivers/soc/fsl/qbman/Makefile
+++ b/drivers/soc/fsl/qbman/Makefile
@@ -1,2 +1,3 @@
-obj-$(CONFIG_FSL_DPAA) += bman_ccsr.o bman_portal.o \
- bman.o
+obj-$(CONFIG_FSL_DPAA) += bman_ccsr.o qman_ccsr.o \
+ bman_portal.o qman_portal.o \
+ bman.o qman.o
diff --git a/drivers/soc/fsl/qbman/qman.c b/drivers/soc/fsl/qbman/qman.c
new file mode 100644
index 000000000000..119054bc922b
--- /dev/null
+++ b/drivers/soc/fsl/qbman/qman.c
@@ -0,0 +1,2881 @@
+/* Copyright 2008 - 2016 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "qman_priv.h"
+
+#define DQRR_MAXFILL 15
+#define EQCR_ITHRESH 4 /* if EQCR congests, interrupt threshold */
+#define IRQNAME "QMan portal %d"
+#define MAX_IRQNAME 16 /* big enough for "QMan portal %d" */
+#define QMAN_POLL_LIMIT 32
+#define QMAN_PIRQ_DQRR_ITHRESH 12
+#define QMAN_PIRQ_MR_ITHRESH 4
+#define QMAN_PIRQ_IPERIOD 100
+
+/* Portal register assists */
+
+/* Cache-inhibited register offsets */
+#define QM_REG_EQCR_PI_CINH 0x0000
+#define QM_REG_EQCR_CI_CINH 0x0004
+#define QM_REG_EQCR_ITR 0x0008
+#define QM_REG_DQRR_PI_CINH 0x0040
+#define QM_REG_DQRR_CI_CINH 0x0044
+#define QM_REG_DQRR_ITR 0x0048
+#define QM_REG_DQRR_DCAP 0x0050
+#define QM_REG_DQRR_SDQCR 0x0054
+#define QM_REG_DQRR_VDQCR 0x0058
+#define QM_REG_DQRR_PDQCR 0x005c
+#define QM_REG_MR_PI_CINH 0x0080
+#define QM_REG_MR_CI_CINH 0x0084
+#define QM_REG_MR_ITR 0x0088
+#define QM_REG_CFG 0x0100
+#define QM_REG_ISR 0x0e00
+#define QM_REG_IER 0x0e04
+#define QM_REG_ISDR 0x0e08
+#define QM_REG_IIR 0x0e0c
+#define QM_REG_ITPR 0x0e14
+
+/* Cache-enabled register offsets */
+#define QM_CL_EQCR 0x0000
+#define QM_CL_DQRR 0x1000
+#define QM_CL_MR 0x2000
+#define QM_CL_EQCR_PI_CENA 0x3000
+#define QM_CL_EQCR_CI_CENA 0x3100
+#define QM_CL_DQRR_PI_CENA 0x3200
+#define QM_CL_DQRR_CI_CENA 0x3300
+#define QM_CL_MR_PI_CENA 0x3400
+#define QM_CL_MR_CI_CENA 0x3500
+#define QM_CL_CR 0x3800
+#define QM_CL_RR0 0x3900
+#define QM_CL_RR1 0x3940
+
+/*
+ * BTW, the drivers (and h/w programming model) already obtain the required
+ * synchronisation for portal accesses and data-dependencies. Use of barrier()s
+ * or other order-preserving primitives simply degrade performance. Hence the
+ * use of the __raw_*() interfaces, which simply ensure that the compiler treats
+ * the portal registers as volatile
+ */
+
+/* Cache-enabled ring access */
+#define qm_cl(base, idx) ((void *)base + ((idx) << 6))
+
+/*
+ * Portal modes.
+ * Enum types;
+ * pmode == production mode
+ * cmode == consumption mode,
+ * dmode == h/w dequeue mode.
+ * Enum values use 3 letter codes. First letter matches the portal mode,
+ * remaining two letters indicate;
+ * ci == cache-inhibited portal register
+ * ce == cache-enabled portal register
+ * vb == in-band valid-bit (cache-enabled)
+ * dc == DCA (Discrete Consumption Acknowledgment), DQRR-only
+ * As for "enum qm_dqrr_dmode", it should be self-explanatory.
+ */
+enum qm_eqcr_pmode { /* matches QCSP_CFG::EPM */
+ qm_eqcr_pci = 0, /* PI index, cache-inhibited */
+ qm_eqcr_pce = 1, /* PI index, cache-enabled */
+ qm_eqcr_pvb = 2 /* valid-bit */
+};
+enum qm_dqrr_dmode { /* matches QCSP_CFG::DP */
+ qm_dqrr_dpush = 0, /* SDQCR + VDQCR */
+ qm_dqrr_dpull = 1 /* PDQCR */
+};
+enum qm_dqrr_pmode { /* s/w-only */
+ qm_dqrr_pci, /* reads DQRR_PI_CINH */
+ qm_dqrr_pce, /* reads DQRR_PI_CENA */
+ qm_dqrr_pvb /* reads valid-bit */
+};
+enum qm_dqrr_cmode { /* matches QCSP_CFG::DCM */
+ qm_dqrr_cci = 0, /* CI index, cache-inhibited */
+ qm_dqrr_cce = 1, /* CI index, cache-enabled */
+ qm_dqrr_cdc = 2 /* Discrete Consumption Acknowledgment */
+};
+enum qm_mr_pmode { /* s/w-only */
+ qm_mr_pci, /* reads MR_PI_CINH */
+ qm_mr_pce, /* reads MR_PI_CENA */
+ qm_mr_pvb /* reads valid-bit */
+};
+enum qm_mr_cmode { /* matches QCSP_CFG::MM */
+ qm_mr_cci = 0, /* CI index, cache-inhibited */
+ qm_mr_cce = 1 /* CI index, cache-enabled */
+};
+
+/* --- Portal structures --- */
+
+#define QM_EQCR_SIZE 8
+#define QM_DQRR_SIZE 16
+#define QM_MR_SIZE 8
+
+/* "Enqueue Command" */
+struct qm_eqcr_entry {
+ u8 _ncw_verb; /* writes to this are non-coherent */
+ u8 dca;
+ u16 seqnum;
+ u32 orp; /* 24-bit */
+ u32 fqid; /* 24-bit */
+ u32 tag;
+ struct qm_fd fd;
+ u8 __reserved3[32];
+} __packed;
+#define QM_EQCR_VERB_VBIT 0x80
+#define QM_EQCR_VERB_CMD_MASK 0x61 /* but only one value; */
+#define QM_EQCR_VERB_CMD_ENQUEUE 0x01
+#define QM_EQCR_SEQNUM_NESN 0x8000 /* Advance NESN */
+#define QM_EQCR_SEQNUM_NLIS 0x4000 /* More fragments to come */
+#define QM_EQCR_SEQNUM_SEQMASK 0x3fff /* sequence number goes here */
+
+struct qm_eqcr {
+ struct qm_eqcr_entry *ring, *cursor;
+ u8 ci, available, ithresh, vbit;
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ u32 busy;
+ enum qm_eqcr_pmode pmode;
+#endif
+};
+
+struct qm_dqrr {
+ const struct qm_dqrr_entry *ring, *cursor;
+ u8 pi, ci, fill, ithresh, vbit;
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ enum qm_dqrr_dmode dmode;
+ enum qm_dqrr_pmode pmode;
+ enum qm_dqrr_cmode cmode;
+#endif
+};
+
+struct qm_mr {
+ union qm_mr_entry *ring, *cursor;
+ u8 pi, ci, fill, ithresh, vbit;
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ enum qm_mr_pmode pmode;
+ enum qm_mr_cmode cmode;
+#endif
+};
+
+/* MC (Management Command) command */
+/* "Query FQ" */
+struct qm_mcc_queryfq {
+ u8 _ncw_verb;
+ u8 __reserved1[3];
+ u32 fqid; /* 24-bit */
+ u8 __reserved2[56];
+} __packed;
+/* "Alter FQ State Commands " */
+struct qm_mcc_alterfq {
+ u8 _ncw_verb;
+ u8 __reserved1[3];
+ u32 fqid; /* 24-bit */
+ u8 __reserved2;
+ u8 count; /* number of consecutive FQID */
+ u8 __reserved3[10];
+ u32 context_b; /* frame queue context b */
+ u8 __reserved4[40];
+} __packed;
+
+/* "Query CGR" */
+struct qm_mcc_querycgr {
+ u8 _ncw_verb;
+ u8 __reserved1[30];
+ u8 cgid;
+ u8 __reserved2[32];
+};
+
+struct qm_mcc_querywq {
+ u8 _ncw_verb;
+ u8 __reserved;
+ /* select channel if verb != QUERYWQ_DEDICATED */
+ u16 channel_wq; /* ignores wq (3 lsbits): _res[0-2] */
+ u8 __reserved2[60];
+} __packed;
+
+#define QM_MCC_VERB_VBIT 0x80
+#define QM_MCC_VERB_MASK 0x7f /* where the verb contains; */
+#define QM_MCC_VERB_INITFQ_PARKED 0x40
+#define QM_MCC_VERB_INITFQ_SCHED 0x41
+#define QM_MCC_VERB_QUERYFQ 0x44
+#define QM_MCC_VERB_QUERYFQ_NP 0x45 /* "non-programmable" fields */
+#define QM_MCC_VERB_QUERYWQ 0x46
+#define QM_MCC_VERB_QUERYWQ_DEDICATED 0x47
+#define QM_MCC_VERB_ALTER_SCHED 0x48 /* Schedule FQ */
+#define QM_MCC_VERB_ALTER_FE 0x49 /* Force Eligible FQ */
+#define QM_MCC_VERB_ALTER_RETIRE 0x4a /* Retire FQ */
+#define QM_MCC_VERB_ALTER_OOS 0x4b /* Take FQ out of service */
+#define QM_MCC_VERB_ALTER_FQXON 0x4d /* FQ XON */
+#define QM_MCC_VERB_ALTER_FQXOFF 0x4e /* FQ XOFF */
+#define QM_MCC_VERB_INITCGR 0x50
+#define QM_MCC_VERB_MODIFYCGR 0x51
+#define QM_MCC_VERB_CGRTESTWRITE 0x52
+#define QM_MCC_VERB_QUERYCGR 0x58
+#define QM_MCC_VERB_QUERYCONGESTION 0x59
+union qm_mc_command {
+ struct {
+ u8 _ncw_verb; /* writes to this are non-coherent */
+ u8 __reserved[63];
+ };
+ struct qm_mcc_initfq initfq;
+ struct qm_mcc_queryfq queryfq;
+ struct qm_mcc_alterfq alterfq;
+ struct qm_mcc_initcgr initcgr;
+ struct qm_mcc_querycgr querycgr;
+ struct qm_mcc_querywq querywq;
+ struct qm_mcc_queryfq_np queryfq_np;
+};
+
+/* MC (Management Command) result */
+/* "Query FQ" */
+struct qm_mcr_queryfq {
+ u8 verb;
+ u8 result;
+ u8 __reserved1[8];
+ struct qm_fqd fqd; /* the FQD fields are here */
+ u8 __reserved2[30];
+} __packed;
+
+/* "Alter FQ State Commands" */
+struct qm_mcr_alterfq {
+ u8 verb;
+ u8 result;
+ u8 fqs; /* Frame Queue Status */
+ u8 __reserved1[61];
+};
+#define QM_MCR_VERB_RRID 0x80
+#define QM_MCR_VERB_MASK QM_MCC_VERB_MASK
+#define QM_MCR_VERB_INITFQ_PARKED QM_MCC_VERB_INITFQ_PARKED
+#define QM_MCR_VERB_INITFQ_SCHED QM_MCC_VERB_INITFQ_SCHED
+#define QM_MCR_VERB_QUERYFQ QM_MCC_VERB_QUERYFQ
+#define QM_MCR_VERB_QUERYFQ_NP QM_MCC_VERB_QUERYFQ_NP
+#define QM_MCR_VERB_QUERYWQ QM_MCC_VERB_QUERYWQ
+#define QM_MCR_VERB_QUERYWQ_DEDICATED QM_MCC_VERB_QUERYWQ_DEDICATED
+#define QM_MCR_VERB_ALTER_SCHED QM_MCC_VERB_ALTER_SCHED
+#define QM_MCR_VERB_ALTER_FE QM_MCC_VERB_ALTER_FE
+#define QM_MCR_VERB_ALTER_RETIRE QM_MCC_VERB_ALTER_RETIRE
+#define QM_MCR_VERB_ALTER_OOS QM_MCC_VERB_ALTER_OOS
+#define QM_MCR_RESULT_NULL 0x00
+#define QM_MCR_RESULT_OK 0xf0
+#define QM_MCR_RESULT_ERR_FQID 0xf1
+#define QM_MCR_RESULT_ERR_FQSTATE 0xf2
+#define QM_MCR_RESULT_ERR_NOTEMPTY 0xf3 /* OOS fails if FQ is !empty */
+#define QM_MCR_RESULT_ERR_BADCHANNEL 0xf4
+#define QM_MCR_RESULT_PENDING 0xf8
+#define QM_MCR_RESULT_ERR_BADCOMMAND 0xff
+#define QM_MCR_FQS_ORLPRESENT 0x02 /* ORL fragments to come */
+#define QM_MCR_FQS_NOTEMPTY 0x01 /* FQ has enqueued frames */
+#define QM_MCR_TIMEOUT 10000 /* us */
+union qm_mc_result {
+ struct {
+ u8 verb;
+ u8 result;
+ u8 __reserved1[62];
+ };
+ struct qm_mcr_queryfq queryfq;
+ struct qm_mcr_alterfq alterfq;
+ struct qm_mcr_querycgr querycgr;
+ struct qm_mcr_querycongestion querycongestion;
+ struct qm_mcr_querywq querywq;
+ struct qm_mcr_queryfq_np queryfq_np;
+};
+
+struct qm_mc {
+ union qm_mc_command *cr;
+ union qm_mc_result *rr;
+ u8 rridx, vbit;
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ enum {
+ /* Can be _mc_start()ed */
+ qman_mc_idle,
+ /* Can be _mc_commit()ed or _mc_abort()ed */
+ qman_mc_user,
+ /* Can only be _mc_retry()ed */
+ qman_mc_hw
+ } state;
+#endif
+};
+
+struct qm_addr {
+ void __iomem *ce; /* cache-enabled */
+ void __iomem *ci; /* cache-inhibited */
+};
+
+struct qm_portal {
+ /*
+ * In the non-CONFIG_FSL_DPAA_CHECKING case, the following stuff up to
+ * and including 'mc' fits within a cacheline (yay!). The 'config' part
+ * is setup-only, so isn't a cause for a concern. In other words, don't
+ * rearrange this structure on a whim, there be dragons ...
+ */
+ struct qm_addr addr;
+ struct qm_eqcr eqcr;
+ struct qm_dqrr dqrr;
+ struct qm_mr mr;
+ struct qm_mc mc;
+} ____cacheline_aligned;
+
+/* Cache-inhibited register access. */
+static inline u32 qm_in(struct qm_portal *p, u32 offset)
+{
+ return __raw_readl(p->addr.ci + offset);
+}
+
+static inline void qm_out(struct qm_portal *p, u32 offset, u32 val)
+{
+ __raw_writel(val, p->addr.ci + offset);
+}
+
+/* Cache Enabled Portal Access */
+static inline void qm_cl_invalidate(struct qm_portal *p, u32 offset)
+{
+ dpaa_invalidate(p->addr.ce + offset);
+}
+
+static inline void qm_cl_touch_ro(struct qm_portal *p, u32 offset)
+{
+ dpaa_touch_ro(p->addr.ce + offset);
+}
+
+static inline u32 qm_ce_in(struct qm_portal *p, u32 offset)
+{
+ return __raw_readl(p->addr.ce + offset);
+}
+
+/* --- EQCR API --- */
+
+#define EQCR_SHIFT ilog2(sizeof(struct qm_eqcr_entry))
+#define EQCR_CARRY (uintptr_t)(QM_EQCR_SIZE << EQCR_SHIFT)
+
+/* Bit-wise logic to wrap a ring pointer by clearing the "carry bit" */
+static struct qm_eqcr_entry *eqcr_carryclear(struct qm_eqcr_entry *p)
+{
+ uintptr_t addr = (uintptr_t)p;
+
+ addr &= ~EQCR_CARRY;
+
+ return (struct qm_eqcr_entry *)addr;
+}
+
+/* Bit-wise logic to convert a ring pointer to a ring index */
+static int eqcr_ptr2idx(struct qm_eqcr_entry *e)
+{
+ return ((uintptr_t)e >> EQCR_SHIFT) & (QM_EQCR_SIZE - 1);
+}
+
+/* Increment the 'cursor' ring pointer, taking 'vbit' into account */
+static inline void eqcr_inc(struct qm_eqcr *eqcr)
+{
+ /* increment to the next EQCR pointer and handle overflow and 'vbit' */
+ struct qm_eqcr_entry *partial = eqcr->cursor + 1;
+
+ eqcr->cursor = eqcr_carryclear(partial);
+ if (partial != eqcr->cursor)
+ eqcr->vbit ^= QM_EQCR_VERB_VBIT;
+}
+
+static inline int qm_eqcr_init(struct qm_portal *portal,
+ enum qm_eqcr_pmode pmode,
+ unsigned int eq_stash_thresh,
+ int eq_stash_prio)
+{
+ struct qm_eqcr *eqcr = &portal->eqcr;
+ u32 cfg;
+ u8 pi;
+
+ eqcr->ring = portal->addr.ce + QM_CL_EQCR;
+ eqcr->ci = qm_in(portal, QM_REG_EQCR_CI_CINH) & (QM_EQCR_SIZE - 1);
+ qm_cl_invalidate(portal, QM_CL_EQCR_CI_CENA);
+ pi = qm_in(portal, QM_REG_EQCR_PI_CINH) & (QM_EQCR_SIZE - 1);
+ eqcr->cursor = eqcr->ring + pi;
+ eqcr->vbit = (qm_in(portal, QM_REG_EQCR_PI_CINH) & QM_EQCR_SIZE) ?
+ QM_EQCR_VERB_VBIT : 0;
+ eqcr->available = QM_EQCR_SIZE - 1 -
+ dpaa_cyc_diff(QM_EQCR_SIZE, eqcr->ci, pi);
+ eqcr->ithresh = qm_in(portal, QM_REG_EQCR_ITR);
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ eqcr->busy = 0;
+ eqcr->pmode = pmode;
+#endif
+ cfg = (qm_in(portal, QM_REG_CFG) & 0x00ffffff) |
+ (eq_stash_thresh << 28) | /* QCSP_CFG: EST */
+ (eq_stash_prio << 26) | /* QCSP_CFG: EP */
+ ((pmode & 0x3) << 24); /* QCSP_CFG::EPM */
+ qm_out(portal, QM_REG_CFG, cfg);
+ return 0;
+}
+
+static inline unsigned int qm_eqcr_get_ci_stashing(struct qm_portal *portal)
+{
+ return (qm_in(portal, QM_REG_CFG) >> 28) & 0x7;
+}
+
+static inline void qm_eqcr_finish(struct qm_portal *portal)
+{
+ struct qm_eqcr *eqcr = &portal->eqcr;
+ u8 pi = qm_in(portal, QM_REG_EQCR_PI_CINH) & (QM_EQCR_SIZE - 1);
+ u8 ci = qm_in(portal, QM_REG_EQCR_CI_CINH) & (QM_EQCR_SIZE - 1);
+
+ DPAA_ASSERT(!eqcr->busy);
+ if (pi != eqcr_ptr2idx(eqcr->cursor))
+ pr_crit("losing uncommited EQCR entries\n");
+ if (ci != eqcr->ci)
+ pr_crit("missing existing EQCR completions\n");
+ if (eqcr->ci != eqcr_ptr2idx(eqcr->cursor))
+ pr_crit("EQCR destroyed unquiesced\n");
+}
+
+static inline struct qm_eqcr_entry *qm_eqcr_start_no_stash(struct qm_portal
+ *portal)
+{
+ struct qm_eqcr *eqcr = &portal->eqcr;
+
+ DPAA_ASSERT(!eqcr->busy);
+ if (!eqcr->available)
+ return NULL;
+
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ eqcr->busy = 1;
+#endif
+ dpaa_zero(eqcr->cursor);
+ return eqcr->cursor;
+}
+
+static inline struct qm_eqcr_entry *qm_eqcr_start_stash(struct qm_portal
+ *portal)
+{
+ struct qm_eqcr *eqcr = &portal->eqcr;
+ u8 diff, old_ci;
+
+ DPAA_ASSERT(!eqcr->busy);
+ if (!eqcr->available) {
+ old_ci = eqcr->ci;
+ eqcr->ci = qm_ce_in(portal, QM_CL_EQCR_CI_CENA) &
+ (QM_EQCR_SIZE - 1);
+ diff = dpaa_cyc_diff(QM_EQCR_SIZE, old_ci, eqcr->ci);
+ eqcr->available += diff;
+ if (!diff)
+ return NULL;
+ }
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ eqcr->busy = 1;
+#endif
+ dpaa_zero(eqcr->cursor);
+ return eqcr->cursor;
+}
+
+static inline void eqcr_commit_checks(struct qm_eqcr *eqcr)
+{
+ DPAA_ASSERT(eqcr->busy);
+ DPAA_ASSERT(eqcr->cursor->orp == (eqcr->cursor->orp & 0x00ffffff));
+ DPAA_ASSERT(eqcr->cursor->fqid == (eqcr->cursor->fqid & 0x00ffffff));
+ DPAA_ASSERT(eqcr->available >= 1);
+}
+
+static inline void qm_eqcr_pvb_commit(struct qm_portal *portal, u8 myverb)
+{
+ struct qm_eqcr *eqcr = &portal->eqcr;
+ struct qm_eqcr_entry *eqcursor;
+
+ eqcr_commit_checks(eqcr);
+ DPAA_ASSERT(eqcr->pmode == qm_eqcr_pvb);
+ dma_wmb();
+ eqcursor = eqcr->cursor;
+ eqcursor->_ncw_verb = myverb | eqcr->vbit;
+ dpaa_flush(eqcursor);
+ eqcr_inc(eqcr);
+ eqcr->available--;
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ eqcr->busy = 0;
+#endif
+}
+
+static inline void qm_eqcr_cce_prefetch(struct qm_portal *portal)
+{
+ qm_cl_touch_ro(portal, QM_CL_EQCR_CI_CENA);
+}
+
+static inline u8 qm_eqcr_cce_update(struct qm_portal *portal)
+{
+ struct qm_eqcr *eqcr = &portal->eqcr;
+ u8 diff, old_ci = eqcr->ci;
+
+ eqcr->ci = qm_ce_in(portal, QM_CL_EQCR_CI_CENA) & (QM_EQCR_SIZE - 1);
+ qm_cl_invalidate(portal, QM_CL_EQCR_CI_CENA);
+ diff = dpaa_cyc_diff(QM_EQCR_SIZE, old_ci, eqcr->ci);
+ eqcr->available += diff;
+ return diff;
+}
+
+static inline void qm_eqcr_set_ithresh(struct qm_portal *portal, u8 ithresh)
+{
+ struct qm_eqcr *eqcr = &portal->eqcr;
+
+ eqcr->ithresh = ithresh;
+ qm_out(portal, QM_REG_EQCR_ITR, ithresh);
+}
+
+static inline u8 qm_eqcr_get_avail(struct qm_portal *portal)
+{
+ struct qm_eqcr *eqcr = &portal->eqcr;
+
+ return eqcr->available;
+}
+
+static inline u8 qm_eqcr_get_fill(struct qm_portal *portal)
+{
+ struct qm_eqcr *eqcr = &portal->eqcr;
+
+ return QM_EQCR_SIZE - 1 - eqcr->available;
+}
+
+/* --- DQRR API --- */
+
+#define DQRR_SHIFT ilog2(sizeof(struct qm_dqrr_entry))
+#define DQRR_CARRY (uintptr_t)(QM_DQRR_SIZE << DQRR_SHIFT)
+
+static const struct qm_dqrr_entry *dqrr_carryclear(
+ const struct qm_dqrr_entry *p)
+{
+ uintptr_t addr = (uintptr_t)p;
+
+ addr &= ~DQRR_CARRY;
+
+ return (const struct qm_dqrr_entry *)addr;
+}
+
+static inline int dqrr_ptr2idx(const struct qm_dqrr_entry *e)
+{
+ return ((uintptr_t)e >> DQRR_SHIFT) & (QM_DQRR_SIZE - 1);
+}
+
+static const struct qm_dqrr_entry *dqrr_inc(const struct qm_dqrr_entry *e)
+{
+ return dqrr_carryclear(e + 1);
+}
+
+static inline void qm_dqrr_set_maxfill(struct qm_portal *portal, u8 mf)
+{
+ qm_out(portal, QM_REG_CFG, (qm_in(portal, QM_REG_CFG) & 0xff0fffff) |
+ ((mf & (QM_DQRR_SIZE - 1)) << 20));
+}
+
+static inline int qm_dqrr_init(struct qm_portal *portal,
+ const struct qm_portal_config *config,
+ enum qm_dqrr_dmode dmode,
+ enum qm_dqrr_pmode pmode,
+ enum qm_dqrr_cmode cmode, u8 max_fill)
+{
+ struct qm_dqrr *dqrr = &portal->dqrr;
+ u32 cfg;
+
+ /* Make sure the DQRR will be idle when we enable */
+ qm_out(portal, QM_REG_DQRR_SDQCR, 0);
+ qm_out(portal, QM_REG_DQRR_VDQCR, 0);
+ qm_out(portal, QM_REG_DQRR_PDQCR, 0);
+ dqrr->ring = portal->addr.ce + QM_CL_DQRR;
+ dqrr->pi = qm_in(portal, QM_REG_DQRR_PI_CINH) & (QM_DQRR_SIZE - 1);
+ dqrr->ci = qm_in(portal, QM_REG_DQRR_CI_CINH) & (QM_DQRR_SIZE - 1);
+ dqrr->cursor = dqrr->ring + dqrr->ci;
+ dqrr->fill = dpaa_cyc_diff(QM_DQRR_SIZE, dqrr->ci, dqrr->pi);
+ dqrr->vbit = (qm_in(portal, QM_REG_DQRR_PI_CINH) & QM_DQRR_SIZE) ?
+ QM_DQRR_VERB_VBIT : 0;
+ dqrr->ithresh = qm_in(portal, QM_REG_DQRR_ITR);
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ dqrr->dmode = dmode;
+ dqrr->pmode = pmode;
+ dqrr->cmode = cmode;
+#endif
+ /* Invalidate every ring entry before beginning */
+ for (cfg = 0; cfg < QM_DQRR_SIZE; cfg++)
+ dpaa_invalidate(qm_cl(dqrr->ring, cfg));
+ cfg = (qm_in(portal, QM_REG_CFG) & 0xff000f00) |
+ ((max_fill & (QM_DQRR_SIZE - 1)) << 20) | /* DQRR_MF */
+ ((dmode & 1) << 18) | /* DP */
+ ((cmode & 3) << 16) | /* DCM */
+ 0xa0 | /* RE+SE */
+ (0 ? 0x40 : 0) | /* Ignore RP */
+ (0 ? 0x10 : 0); /* Ignore SP */
+ qm_out(portal, QM_REG_CFG, cfg);
+ qm_dqrr_set_maxfill(portal, max_fill);
+ return 0;
+}
+
+static inline void qm_dqrr_finish(struct qm_portal *portal)
+{
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ struct qm_dqrr *dqrr = &portal->dqrr;
+
+ if (dqrr->cmode != qm_dqrr_cdc &&
+ dqrr->ci != dqrr_ptr2idx(dqrr->cursor))
+ pr_crit("Ignoring completed DQRR entries\n");
+#endif
+}
+
+static inline const struct qm_dqrr_entry *qm_dqrr_current(
+ struct qm_portal *portal)
+{
+ struct qm_dqrr *dqrr = &portal->dqrr;
+
+ if (!dqrr->fill)
+ return NULL;
+ return dqrr->cursor;
+}
+
+static inline u8 qm_dqrr_next(struct qm_portal *portal)
+{
+ struct qm_dqrr *dqrr = &portal->dqrr;
+
+ DPAA_ASSERT(dqrr->fill);
+ dqrr->cursor = dqrr_inc(dqrr->cursor);
+ return --dqrr->fill;
+}
+
+static inline void qm_dqrr_pvb_update(struct qm_portal *portal)
+{
+ struct qm_dqrr *dqrr = &portal->dqrr;
+ struct qm_dqrr_entry *res = qm_cl(dqrr->ring, dqrr->pi);
+
+ DPAA_ASSERT(dqrr->pmode == qm_dqrr_pvb);
+#ifndef CONFIG_FSL_PAMU
+ /*
+ * If PAMU is not available we need to invalidate the cache.
+ * When PAMU is available the cache is updated by stash
+ */
+ dpaa_invalidate_touch_ro(res);
+#endif
+ /*
+ * when accessing 'verb', use __raw_readb() to ensure that compiler
+ * inlining doesn't try to optimise out "excess reads".
+ */
+ if ((__raw_readb(&res->verb) & QM_DQRR_VERB_VBIT) == dqrr->vbit) {
+ dqrr->pi = (dqrr->pi + 1) & (QM_DQRR_SIZE - 1);
+ if (!dqrr->pi)
+ dqrr->vbit ^= QM_DQRR_VERB_VBIT;
+ dqrr->fill++;
+ }
+}
+
+static inline void qm_dqrr_cdc_consume_1ptr(struct qm_portal *portal,
+ const struct qm_dqrr_entry *dq,
+ int park)
+{
+ __maybe_unused struct qm_dqrr *dqrr = &portal->dqrr;
+ int idx = dqrr_ptr2idx(dq);
+
+ DPAA_ASSERT(dqrr->cmode == qm_dqrr_cdc);
+ DPAA_ASSERT((dqrr->ring + idx) == dq);
+ DPAA_ASSERT(idx < QM_DQRR_SIZE);
+ qm_out(portal, QM_REG_DQRR_DCAP, (0 << 8) | /* DQRR_DCAP::S */
+ ((park ? 1 : 0) << 6) | /* DQRR_DCAP::PK */
+ idx); /* DQRR_DCAP::DCAP_CI */
+}
+
+static inline void qm_dqrr_cdc_consume_n(struct qm_portal *portal, u32 bitmask)
+{
+ __maybe_unused struct qm_dqrr *dqrr = &portal->dqrr;
+
+ DPAA_ASSERT(dqrr->cmode == qm_dqrr_cdc);
+ qm_out(portal, QM_REG_DQRR_DCAP, (1 << 8) | /* DQRR_DCAP::S */
+ (bitmask << 16)); /* DQRR_DCAP::DCAP_CI */
+}
+
+static inline void qm_dqrr_sdqcr_set(struct qm_portal *portal, u32 sdqcr)
+{
+ qm_out(portal, QM_REG_DQRR_SDQCR, sdqcr);
+}
+
+static inline void qm_dqrr_vdqcr_set(struct qm_portal *portal, u32 vdqcr)
+{
+ qm_out(portal, QM_REG_DQRR_VDQCR, vdqcr);
+}
+
+static inline void qm_dqrr_set_ithresh(struct qm_portal *portal, u8 ithresh)
+{
+ qm_out(portal, QM_REG_DQRR_ITR, ithresh);
+}
+
+/* --- MR API --- */
+
+#define MR_SHIFT ilog2(sizeof(union qm_mr_entry))
+#define MR_CARRY (uintptr_t)(QM_MR_SIZE << MR_SHIFT)
+
+static union qm_mr_entry *mr_carryclear(union qm_mr_entry *p)
+{
+ uintptr_t addr = (uintptr_t)p;
+
+ addr &= ~MR_CARRY;
+
+ return (union qm_mr_entry *)addr;
+}
+
+static inline int mr_ptr2idx(const union qm_mr_entry *e)
+{
+ return ((uintptr_t)e >> MR_SHIFT) & (QM_MR_SIZE - 1);
+}
+
+static inline union qm_mr_entry *mr_inc(union qm_mr_entry *e)
+{
+ return mr_carryclear(e + 1);
+}
+
+static inline int qm_mr_init(struct qm_portal *portal, enum qm_mr_pmode pmode,
+ enum qm_mr_cmode cmode)
+{
+ struct qm_mr *mr = &portal->mr;
+ u32 cfg;
+
+ mr->ring = portal->addr.ce + QM_CL_MR;
+ mr->pi = qm_in(portal, QM_REG_MR_PI_CINH) & (QM_MR_SIZE - 1);
+ mr->ci = qm_in(portal, QM_REG_MR_CI_CINH) & (QM_MR_SIZE - 1);
+ mr->cursor = mr->ring + mr->ci;
+ mr->fill = dpaa_cyc_diff(QM_MR_SIZE, mr->ci, mr->pi);
+ mr->vbit = (qm_in(portal, QM_REG_MR_PI_CINH) & QM_MR_SIZE)
+ ? QM_MR_VERB_VBIT : 0;
+ mr->ithresh = qm_in(portal, QM_REG_MR_ITR);
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ mr->pmode = pmode;
+ mr->cmode = cmode;
+#endif
+ cfg = (qm_in(portal, QM_REG_CFG) & 0xfffff0ff) |
+ ((cmode & 1) << 8); /* QCSP_CFG:MM */
+ qm_out(portal, QM_REG_CFG, cfg);
+ return 0;
+}
+
+static inline void qm_mr_finish(struct qm_portal *portal)
+{
+ struct qm_mr *mr = &portal->mr;
+
+ if (mr->ci != mr_ptr2idx(mr->cursor))
+ pr_crit("Ignoring completed MR entries\n");
+}
+
+static inline const union qm_mr_entry *qm_mr_current(struct qm_portal *portal)
+{
+ struct qm_mr *mr = &portal->mr;
+
+ if (!mr->fill)
+ return NULL;
+ return mr->cursor;
+}
+
+static inline int qm_mr_next(struct qm_portal *portal)
+{
+ struct qm_mr *mr = &portal->mr;
+
+ DPAA_ASSERT(mr->fill);
+ mr->cursor = mr_inc(mr->cursor);
+ return --mr->fill;
+}
+
+static inline void qm_mr_pvb_update(struct qm_portal *portal)
+{
+ struct qm_mr *mr = &portal->mr;
+ union qm_mr_entry *res = qm_cl(mr->ring, mr->pi);
+
+ DPAA_ASSERT(mr->pmode == qm_mr_pvb);
+ /*
+ * when accessing 'verb', use __raw_readb() to ensure that compiler
+ * inlining doesn't try to optimise out "excess reads".
+ */
+ if ((__raw_readb(&res->verb) & QM_MR_VERB_VBIT) == mr->vbit) {
+ mr->pi = (mr->pi + 1) & (QM_MR_SIZE - 1);
+ if (!mr->pi)
+ mr->vbit ^= QM_MR_VERB_VBIT;
+ mr->fill++;
+ res = mr_inc(res);
+ }
+ dpaa_invalidate_touch_ro(res);
+}
+
+static inline void qm_mr_cci_consume(struct qm_portal *portal, u8 num)
+{
+ struct qm_mr *mr = &portal->mr;
+
+ DPAA_ASSERT(mr->cmode == qm_mr_cci);
+ mr->ci = (mr->ci + num) & (QM_MR_SIZE - 1);
+ qm_out(portal, QM_REG_MR_CI_CINH, mr->ci);
+}
+
+static inline void qm_mr_cci_consume_to_current(struct qm_portal *portal)
+{
+ struct qm_mr *mr = &portal->mr;
+
+ DPAA_ASSERT(mr->cmode == qm_mr_cci);
+ mr->ci = mr_ptr2idx(mr->cursor);
+ qm_out(portal, QM_REG_MR_CI_CINH, mr->ci);
+}
+
+static inline void qm_mr_set_ithresh(struct qm_portal *portal, u8 ithresh)
+{
+ qm_out(portal, QM_REG_MR_ITR, ithresh);
+}
+
+/* --- Management command API --- */
+
+static inline int qm_mc_init(struct qm_portal *portal)
+{
+ struct qm_mc *mc = &portal->mc;
+
+ mc->cr = portal->addr.ce + QM_CL_CR;
+ mc->rr = portal->addr.ce + QM_CL_RR0;
+ mc->rridx = (__raw_readb(&mc->cr->_ncw_verb) & QM_MCC_VERB_VBIT)
+ ? 0 : 1;
+ mc->vbit = mc->rridx ? QM_MCC_VERB_VBIT : 0;
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ mc->state = qman_mc_idle;
+#endif
+ return 0;
+}
+
+static inline void qm_mc_finish(struct qm_portal *portal)
+{
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ struct qm_mc *mc = &portal->mc;
+
+ DPAA_ASSERT(mc->state == qman_mc_idle);
+ if (mc->state != qman_mc_idle)
+ pr_crit("Losing incomplete MC command\n");
+#endif
+}
+
+static inline union qm_mc_command *qm_mc_start(struct qm_portal *portal)
+{
+ struct qm_mc *mc = &portal->mc;
+
+ DPAA_ASSERT(mc->state == qman_mc_idle);
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ mc->state = qman_mc_user;
+#endif
+ dpaa_zero(mc->cr);
+ return mc->cr;
+}
+
+static inline void qm_mc_commit(struct qm_portal *portal, u8 myverb)
+{
+ struct qm_mc *mc = &portal->mc;
+ union qm_mc_result *rr = mc->rr + mc->rridx;
+
+ DPAA_ASSERT(mc->state == qman_mc_user);
+ dma_wmb();
+ mc->cr->_ncw_verb = myverb | mc->vbit;
+ dpaa_flush(mc->cr);
+ dpaa_invalidate_touch_ro(rr);
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ mc->state = qman_mc_hw;
+#endif
+}
+
+static inline union qm_mc_result *qm_mc_result(struct qm_portal *portal)
+{
+ struct qm_mc *mc = &portal->mc;
+ union qm_mc_result *rr = mc->rr + mc->rridx;
+
+ DPAA_ASSERT(mc->state == qman_mc_hw);
+ /*
+ * The inactive response register's verb byte always returns zero until
+ * its command is submitted and completed. This includes the valid-bit,
+ * in case you were wondering...
+ */
+ if (!__raw_readb(&rr->verb)) {
+ dpaa_invalidate_touch_ro(rr);
+ return NULL;
+ }
+ mc->rridx ^= 1;
+ mc->vbit ^= QM_MCC_VERB_VBIT;
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ mc->state = qman_mc_idle;
+#endif
+ return rr;
+}
+
+static inline int qm_mc_result_timeout(struct qm_portal *portal,
+ union qm_mc_result **mcr)
+{
+ int timeout = QM_MCR_TIMEOUT;
+
+ do {
+ *mcr = qm_mc_result(portal);
+ if (*mcr)
+ break;
+ udelay(1);
+ } while (--timeout);
+
+ return timeout;
+}
+
+static inline void fq_set(struct qman_fq *fq, u32 mask)
+{
+ set_bits(mask, &fq->flags);
+}
+
+static inline void fq_clear(struct qman_fq *fq, u32 mask)
+{
+ clear_bits(mask, &fq->flags);
+}
+
+static inline int fq_isset(struct qman_fq *fq, u32 mask)
+{
+ return fq->flags & mask;
+}
+
+static inline int fq_isclear(struct qman_fq *fq, u32 mask)
+{
+ return !(fq->flags & mask);
+}
+
+struct qman_portal {
+ struct qm_portal p;
+ /* PORTAL_BITS_*** - dynamic, strictly internal */
+ unsigned long bits;
+ /* interrupt sources processed by portal_isr(), configurable */
+ unsigned long irq_sources;
+ u32 use_eqcr_ci_stashing;
+ /* only 1 volatile dequeue at a time */
+ struct qman_fq *vdqcr_owned;
+ u32 sdqcr;
+ /* probing time config params for cpu-affine portals */
+ const struct qm_portal_config *config;
+ /* needed for providing a non-NULL device to dma_map_***() */
+ struct platform_device *pdev;
+ /* 2-element array. cgrs[0] is mask, cgrs[1] is snapshot. */
+ struct qman_cgrs *cgrs;
+ /* linked-list of CSCN handlers. */
+ struct list_head cgr_cbs;
+ /* list lock */
+ spinlock_t cgr_lock;
+ struct work_struct congestion_work;
+ struct work_struct mr_work;
+ char irqname[MAX_IRQNAME];
+};
+
+static cpumask_t affine_mask;
+static DEFINE_SPINLOCK(affine_mask_lock);
+static u16 affine_channels[NR_CPUS];
+static DEFINE_PER_CPU(struct qman_portal, qman_affine_portal);
+struct qman_portal *affine_portals[NR_CPUS];
+
+static inline struct qman_portal *get_affine_portal(void)
+{
+ return &get_cpu_var(qman_affine_portal);
+}
+
+static inline void put_affine_portal(void)
+{
+ put_cpu_var(qman_affine_portal);
+}
+
+static struct workqueue_struct *qm_portal_wq;
+
+int qman_wq_alloc(void)
+{
+ qm_portal_wq = alloc_workqueue("qman_portal_wq", 0, 1);
+ if (!qm_portal_wq)
+ return -ENOMEM;
+ return 0;
+}
+
+/*
+ * This is what everything can wait on, even if it migrates to a different cpu
+ * to the one whose affine portal it is waiting on.
+ */
+static DECLARE_WAIT_QUEUE_HEAD(affine_queue);
+
+static struct qman_fq **fq_table;
+static u32 num_fqids;
+
+int qman_alloc_fq_table(u32 _num_fqids)
+{
+ num_fqids = _num_fqids;
+
+ fq_table = vzalloc(num_fqids * 2 * sizeof(struct qman_fq *));
+ if (!fq_table)
+ return -ENOMEM;
+
+ pr_debug("Allocated fq lookup table at %p, entry count %u\n",
+ fq_table, num_fqids * 2);
+ return 0;
+}
+
+static struct qman_fq *idx_to_fq(u32 idx)
+{
+ struct qman_fq *fq;
+
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ if (WARN_ON(idx >= num_fqids * 2))
+ return NULL;
+#endif
+ fq = fq_table[idx];
+ DPAA_ASSERT(!fq || idx == fq->idx);
+
+ return fq;
+}
+
+/*
+ * Only returns full-service fq objects, not enqueue-only
+ * references (QMAN_FQ_FLAG_NO_MODIFY).
+ */
+static struct qman_fq *fqid_to_fq(u32 fqid)
+{
+ return idx_to_fq(fqid * 2);
+}
+
+static struct qman_fq *tag_to_fq(u32 tag)
+{
+#if BITS_PER_LONG == 64
+ return idx_to_fq(tag);
+#else
+ return (struct qman_fq *)tag;
+#endif
+}
+
+static u32 fq_to_tag(struct qman_fq *fq)
+{
+#if BITS_PER_LONG == 64
+ return fq->idx;
+#else
+ return (u32)fq;
+#endif
+}
+
+static u32 __poll_portal_slow(struct qman_portal *p, u32 is);
+static inline unsigned int __poll_portal_fast(struct qman_portal *p,
+ unsigned int poll_limit);
+static void qm_congestion_task(struct work_struct *work);
+static void qm_mr_process_task(struct work_struct *work);
+
+static irqreturn_t portal_isr(int irq, void *ptr)
+{
+ struct qman_portal *p = ptr;
+
+ u32 clear = QM_DQAVAIL_MASK | p->irq_sources;
+ u32 is = qm_in(&p->p, QM_REG_ISR) & p->irq_sources;
+
+ if (unlikely(!is))
+ return IRQ_NONE;
+
+ /* DQRR-handling if it's interrupt-driven */
+ if (is & QM_PIRQ_DQRI)
+ __poll_portal_fast(p, QMAN_POLL_LIMIT);
+ /* Handling of anything else that's interrupt-driven */
+ clear |= __poll_portal_slow(p, is);
+ qm_out(&p->p, QM_REG_ISR, clear);
+ return IRQ_HANDLED;
+}
+
+static int drain_mr_fqrni(struct qm_portal *p)
+{
+ const union qm_mr_entry *msg;
+loop:
+ msg = qm_mr_current(p);
+ if (!msg) {
+ /*
+ * if MR was full and h/w had other FQRNI entries to produce, we
+ * need to allow it time to produce those entries once the
+ * existing entries are consumed. A worst-case situation
+ * (fully-loaded system) means h/w sequencers may have to do 3-4
+ * other things before servicing the portal's MR pump, each of
+ * which (if slow) may take ~50 qman cycles (which is ~200
+ * processor cycles). So rounding up and then multiplying this
+ * worst-case estimate by a factor of 10, just to be
+ * ultra-paranoid, goes as high as 10,000 cycles. NB, we consume
+ * one entry at a time, so h/w has an opportunity to produce new
+ * entries well before the ring has been fully consumed, so
+ * we're being *really* paranoid here.
+ */
+ u64 now, then = jiffies;
+
+ do {
+ now = jiffies;
+ } while ((then + 10000) > now);
+ msg = qm_mr_current(p);
+ if (!msg)
+ return 0;
+ }
+ if ((msg->verb & QM_MR_VERB_TYPE_MASK) != QM_MR_VERB_FQRNI) {
+ /* We aren't draining anything but FQRNIs */
+ pr_err("Found verb 0x%x in MR\n", msg->verb);
+ return -1;
+ }
+ qm_mr_next(p);
+ qm_mr_cci_consume(p, 1);
+ goto loop;
+}
+
+static int qman_create_portal(struct qman_portal *portal,
+ const struct qm_portal_config *c,
+ const struct qman_cgrs *cgrs)
+{
+ struct qm_portal *p;
+ char buf[16];
+ int ret;
+ u32 isdr;
+
+ p = &portal->p;
+
+#ifdef CONFIG_FSL_PAMU
+ /* PAMU is required for stashing */
+ portal->use_eqcr_ci_stashing = ((qman_ip_rev >= QMAN_REV30) ? 1 : 0);
+#else
+ portal->use_eqcr_ci_stashing = 0;
+#endif
+ /*
+ * prep the low-level portal struct with the mapped addresses from the
+ * config, everything that follows depends on it and "config" is more
+ * for (de)reference
+ */
+ p->addr.ce = c->addr_virt[DPAA_PORTAL_CE];
+ p->addr.ci = c->addr_virt[DPAA_PORTAL_CI];
+ /*
+ * If CI-stashing is used, the current defaults use a threshold of 3,
+ * and stash with high-than-DQRR priority.
+ */
+ if (qm_eqcr_init(p, qm_eqcr_pvb,
+ portal->use_eqcr_ci_stashing ? 3 : 0, 1)) {
+ dev_err(c->dev, "EQCR initialisation failed\n");
+ goto fail_eqcr;
+ }
+ if (qm_dqrr_init(p, c, qm_dqrr_dpush, qm_dqrr_pvb,
+ qm_dqrr_cdc, DQRR_MAXFILL)) {
+ dev_err(c->dev, "DQRR initialisation failed\n");
+ goto fail_dqrr;
+ }
+ if (qm_mr_init(p, qm_mr_pvb, qm_mr_cci)) {
+ dev_err(c->dev, "MR initialisation failed\n");
+ goto fail_mr;
+ }
+ if (qm_mc_init(p)) {
+ dev_err(c->dev, "MC initialisation failed\n");
+ goto fail_mc;
+ }
+ /* static interrupt-gating controls */
+ qm_dqrr_set_ithresh(p, QMAN_PIRQ_DQRR_ITHRESH);
+ qm_mr_set_ithresh(p, QMAN_PIRQ_MR_ITHRESH);
+ qm_out(p, QM_REG_ITPR, QMAN_PIRQ_IPERIOD);
+ portal->cgrs = kmalloc(2 * sizeof(*cgrs), GFP_KERNEL);
+ if (!portal->cgrs)
+ goto fail_cgrs;
+ /* initial snapshot is no-depletion */
+ qman_cgrs_init(&portal->cgrs[1]);
+ if (cgrs)
+ portal->cgrs[0] = *cgrs;
+ else
+ /* if the given mask is NULL, assume all CGRs can be seen */
+ qman_cgrs_fill(&portal->cgrs[0]);
+ INIT_LIST_HEAD(&portal->cgr_cbs);
+ spin_lock_init(&portal->cgr_lock);
+ INIT_WORK(&portal->congestion_work, qm_congestion_task);
+ INIT_WORK(&portal->mr_work, qm_mr_process_task);
+ portal->bits = 0;
+ portal->sdqcr = QM_SDQCR_SOURCE_CHANNELS | QM_SDQCR_COUNT_UPTO3 |
+ QM_SDQCR_DEDICATED_PRECEDENCE | QM_SDQCR_TYPE_PRIO_QOS |
+ QM_SDQCR_TOKEN_SET(0xab) | QM_SDQCR_CHANNELS_DEDICATED;
+ sprintf(buf, "qportal-%d", c->channel);
+ portal->pdev = platform_device_alloc(buf, -1);
+ if (!portal->pdev)
+ goto fail_devalloc;
+ if (dma_set_mask(&portal->pdev->dev, DMA_BIT_MASK(40)))
+ goto fail_devadd;
+ ret = platform_device_add(portal->pdev);
+ if (ret)
+ goto fail_devadd;
+ isdr = 0xffffffff;
+ qm_out(p, QM_REG_ISDR, isdr);
+ portal->irq_sources = 0;
+ qm_out(p, QM_REG_IER, 0);
+ qm_out(p, QM_REG_ISR, 0xffffffff);
+ snprintf(portal->irqname, MAX_IRQNAME, IRQNAME, c->cpu);
+ if (request_irq(c->irq, portal_isr, 0, portal->irqname, portal)) {
+ dev_err(c->dev, "request_irq() failed\n");
+ goto fail_irq;
+ }
+ if (c->cpu != -1 && irq_can_set_affinity(c->irq) &&
+ irq_set_affinity(c->irq, cpumask_of(c->cpu))) {
+ dev_err(c->dev, "irq_set_affinity() failed\n");
+ goto fail_affinity;
+ }
+
+ /* Need EQCR to be empty before continuing */
+ isdr &= ~QM_PIRQ_EQCI;
+ qm_out(p, QM_REG_ISDR, isdr);
+ ret = qm_eqcr_get_fill(p);
+ if (ret) {
+ dev_err(c->dev, "EQCR unclean\n");
+ goto fail_eqcr_empty;
+ }
+ isdr &= ~(QM_PIRQ_DQRI | QM_PIRQ_MRI);
+ qm_out(p, QM_REG_ISDR, isdr);
+ if (qm_dqrr_current(p)) {
+ dev_err(c->dev, "DQRR unclean\n");
+ qm_dqrr_cdc_consume_n(p, 0xffff);
+ }
+ if (qm_mr_current(p) && drain_mr_fqrni(p)) {
+ /* special handling, drain just in case it's a few FQRNIs */
+ const union qm_mr_entry *e = qm_mr_current(p);
+
+ dev_err(c->dev, "MR dirty, VB 0x%x, rc 0x%x\n, addr 0x%x",
+ e->verb, e->ern.rc, e->ern.fd.addr_lo);
+ goto fail_dqrr_mr_empty;
+ }
+ /* Success */
+ portal->config = c;
+ qm_out(p, QM_REG_ISDR, 0);
+ qm_out(p, QM_REG_IIR, 0);
+ /* Write a sane SDQCR */
+ qm_dqrr_sdqcr_set(p, portal->sdqcr);
+ return 0;
+
+fail_dqrr_mr_empty:
+fail_eqcr_empty:
+fail_affinity:
+ free_irq(c->irq, portal);
+fail_irq:
+ platform_device_del(portal->pdev);
+fail_devadd:
+ platform_device_put(portal->pdev);
+fail_devalloc:
+ kfree(portal->cgrs);
+fail_cgrs:
+ qm_mc_finish(p);
+fail_mc:
+ qm_mr_finish(p);
+fail_mr:
+ qm_dqrr_finish(p);
+fail_dqrr:
+ qm_eqcr_finish(p);
+fail_eqcr:
+ return -EIO;
+}
+
+struct qman_portal *qman_create_affine_portal(const struct qm_portal_config *c,
+ const struct qman_cgrs *cgrs)
+{
+ struct qman_portal *portal;
+ int err;
+
+ portal = &per_cpu(qman_affine_portal, c->cpu);
+ err = qman_create_portal(portal, c, cgrs);
+ if (err)
+ return NULL;
+
+ spin_lock(&affine_mask_lock);
+ cpumask_set_cpu(c->cpu, &affine_mask);
+ affine_channels[c->cpu] = c->channel;
+ affine_portals[c->cpu] = portal;
+ spin_unlock(&affine_mask_lock);
+
+ return portal;
+}
+
+static void qman_destroy_portal(struct qman_portal *qm)
+{
+ const struct qm_portal_config *pcfg;
+
+ /* Stop dequeues on the portal */
+ qm_dqrr_sdqcr_set(&qm->p, 0);
+
+ /*
+ * NB we do this to "quiesce" EQCR. If we add enqueue-completions or
+ * something related to QM_PIRQ_EQCI, this may need fixing.
+ * Also, due to the prefetching model used for CI updates in the enqueue
+ * path, this update will only invalidate the CI cacheline *after*
+ * working on it, so we need to call this twice to ensure a full update
+ * irrespective of where the enqueue processing was at when the teardown
+ * began.
+ */
+ qm_eqcr_cce_update(&qm->p);
+ qm_eqcr_cce_update(&qm->p);
+ pcfg = qm->config;
+
+ free_irq(pcfg->irq, qm);
+
+ kfree(qm->cgrs);
+ qm_mc_finish(&qm->p);
+ qm_mr_finish(&qm->p);
+ qm_dqrr_finish(&qm->p);
+ qm_eqcr_finish(&qm->p);
+
+ platform_device_del(qm->pdev);
+ platform_device_put(qm->pdev);
+
+ qm->config = NULL;
+}
+
+const struct qm_portal_config *qman_destroy_affine_portal(void)
+{
+ struct qman_portal *qm = get_affine_portal();
+ const struct qm_portal_config *pcfg;
+ int cpu;
+
+ pcfg = qm->config;
+ cpu = pcfg->cpu;
+
+ qman_destroy_portal(qm);
+
+ spin_lock(&affine_mask_lock);
+ cpumask_clear_cpu(cpu, &affine_mask);
+ spin_unlock(&affine_mask_lock);
+ put_affine_portal();
+ return pcfg;
+}
+
+/* Inline helper to reduce nesting in __poll_portal_slow() */
+static inline void fq_state_change(struct qman_portal *p, struct qman_fq *fq,
+ const union qm_mr_entry *msg, u8 verb)
+{
+ switch (verb) {
+ case QM_MR_VERB_FQRL:
+ DPAA_ASSERT(fq_isset(fq, QMAN_FQ_STATE_ORL));
+ fq_clear(fq, QMAN_FQ_STATE_ORL);
+ break;
+ case QM_MR_VERB_FQRN:
+ DPAA_ASSERT(fq->state == qman_fq_state_parked ||
+ fq->state == qman_fq_state_sched);
+ DPAA_ASSERT(fq_isset(fq, QMAN_FQ_STATE_CHANGING));
+ fq_clear(fq, QMAN_FQ_STATE_CHANGING);
+ if (msg->fq.fqs & QM_MR_FQS_NOTEMPTY)
+ fq_set(fq, QMAN_FQ_STATE_NE);
+ if (msg->fq.fqs & QM_MR_FQS_ORLPRESENT)
+ fq_set(fq, QMAN_FQ_STATE_ORL);
+ fq->state = qman_fq_state_retired;
+ break;
+ case QM_MR_VERB_FQPN:
+ DPAA_ASSERT(fq->state == qman_fq_state_sched);
+ DPAA_ASSERT(fq_isclear(fq, QMAN_FQ_STATE_CHANGING));
+ fq->state = qman_fq_state_parked;
+ }
+}
+
+static void qm_congestion_task(struct work_struct *work)
+{
+ struct qman_portal *p = container_of(work, struct qman_portal,
+ congestion_work);
+ struct qman_cgrs rr, c;
+ union qm_mc_result *mcr;
+ struct qman_cgr *cgr;
+
+ spin_lock(&p->cgr_lock);
+ qm_mc_start(&p->p);
+ qm_mc_commit(&p->p, QM_MCC_VERB_QUERYCONGESTION);
+ if (!qm_mc_result_timeout(&p->p, &mcr)) {
+ spin_unlock(&p->cgr_lock);
+ dev_crit(p->config->dev, "QUERYCONGESTION timeout\n");
+ return;
+ }
+ /* mask out the ones I'm not interested in */
+ qman_cgrs_and(&rr, (struct qman_cgrs *)&mcr->querycongestion.state,
+ &p->cgrs[0]);
+ /* check previous snapshot for delta, enter/exit congestion */
+ qman_cgrs_xor(&c, &rr, &p->cgrs[1]);
+ /* update snapshot */
+ qman_cgrs_cp(&p->cgrs[1], &rr);
+ /* Invoke callback */
+ list_for_each_entry(cgr, &p->cgr_cbs, node)
+ if (cgr->cb && qman_cgrs_get(&c, cgr->cgrid))
+ cgr->cb(p, cgr, qman_cgrs_get(&rr, cgr->cgrid));
+ spin_unlock(&p->cgr_lock);
+}
+
+static void qm_mr_process_task(struct work_struct *work)
+{
+ struct qman_portal *p = container_of(work, struct qman_portal,
+ mr_work);
+ const union qm_mr_entry *msg;
+ struct qman_fq *fq;
+ u8 verb, num = 0;
+
+ preempt_disable();
+
+ while (1) {
+ qm_mr_pvb_update(&p->p);
+ msg = qm_mr_current(&p->p);
+ if (!msg)
+ break;
+
+ verb = msg->verb & QM_MR_VERB_TYPE_MASK;
+ /* The message is a software ERN iff the 0x20 bit is clear */
+ if (verb & 0x20) {
+ switch (verb) {
+ case QM_MR_VERB_FQRNI:
+ /* nada, we drop FQRNIs on the floor */
+ break;
+ case QM_MR_VERB_FQRN:
+ case QM_MR_VERB_FQRL:
+ /* Lookup in the retirement table */
+ fq = fqid_to_fq(msg->fq.fqid);
+ if (WARN_ON(!fq))
+ break;
+ fq_state_change(p, fq, msg, verb);
+ if (fq->cb.fqs)
+ fq->cb.fqs(p, fq, msg);
+ break;
+ case QM_MR_VERB_FQPN:
+ /* Parked */
+ fq = tag_to_fq(msg->fq.contextB);
+ fq_state_change(p, fq, msg, verb);
+ if (fq->cb.fqs)
+ fq->cb.fqs(p, fq, msg);
+ break;
+ case QM_MR_VERB_DC_ERN:
+ /* DCP ERN */
+ pr_crit_once("Leaking DCP ERNs!\n");
+ break;
+ default:
+ pr_crit("Invalid MR verb 0x%02x\n", verb);
+ }
+ } else {
+ /* Its a software ERN */
+ fq = tag_to_fq(msg->ern.tag);
+ fq->cb.ern(p, fq, msg);
+ }
+ num++;
+ qm_mr_next(&p->p);
+ }
+
+ qm_mr_cci_consume(&p->p, num);
+ preempt_enable();
+}
+
+static u32 __poll_portal_slow(struct qman_portal *p, u32 is)
+{
+ if (is & QM_PIRQ_CSCI) {
+ queue_work_on(smp_processor_id(), qm_portal_wq,
+ &p->congestion_work);
+ }
+
+ if (is & QM_PIRQ_EQRI) {
+ qm_eqcr_cce_update(&p->p);
+ qm_eqcr_set_ithresh(&p->p, 0);
+ wake_up(&affine_queue);
+ }
+
+ if (is & QM_PIRQ_MRI) {
+ queue_work_on(smp_processor_id(), qm_portal_wq,
+ &p->mr_work);
+ }
+
+ return is;
+}
+
+/*
+ * remove some slowish-path stuff from the "fast path" and make sure it isn't
+ * inlined.
+ */
+static noinline void clear_vdqcr(struct qman_portal *p, struct qman_fq *fq)
+{
+ p->vdqcr_owned = NULL;
+ fq_clear(fq, QMAN_FQ_STATE_VDQCR);
+ wake_up(&affine_queue);
+}
+
+/*
+ * The only states that would conflict with other things if they ran at the
+ * same time on the same cpu are:
+ *
+ * (i) setting/clearing vdqcr_owned, and
+ * (ii) clearing the NE (Not Empty) flag.
+ *
+ * Both are safe. Because;
+ *
+ * (i) this clearing can only occur after qman_volatile_dequeue() has set the
+ * vdqcr_owned field (which it does before setting VDQCR), and
+ * qman_volatile_dequeue() blocks interrupts and preemption while this is
+ * done so that we can't interfere.
+ * (ii) the NE flag is only cleared after qman_retire_fq() has set it, and as
+ * with (i) that API prevents us from interfering until it's safe.
+ *
+ * The good thing is that qman_volatile_dequeue() and qman_retire_fq() run far
+ * less frequently (ie. per-FQ) than __poll_portal_fast() does, so the nett
+ * advantage comes from this function not having to "lock" anything at all.
+ *
+ * Note also that the callbacks are invoked at points which are safe against the
+ * above potential conflicts, but that this function itself is not re-entrant
+ * (this is because the function tracks one end of each FIFO in the portal and
+ * we do *not* want to lock that). So the consequence is that it is safe for
+ * user callbacks to call into any QMan API.
+ */
+static inline unsigned int __poll_portal_fast(struct qman_portal *p,
+ unsigned int poll_limit)
+{
+ const struct qm_dqrr_entry *dq;
+ struct qman_fq *fq;
+ enum qman_cb_dqrr_result res;
+ unsigned int limit = 0;
+
+ do {
+ qm_dqrr_pvb_update(&p->p);
+ dq = qm_dqrr_current(&p->p);
+ if (!dq)
+ break;
+
+ if (dq->stat & QM_DQRR_STAT_UNSCHEDULED) {
+ /*
+ * VDQCR: don't trust contextB as the FQ may have
+ * been configured for h/w consumption and we're
+ * draining it post-retirement.
+ */
+ fq = p->vdqcr_owned;
+ /*
+ * We only set QMAN_FQ_STATE_NE when retiring, so we
+ * only need to check for clearing it when doing
+ * volatile dequeues. It's one less thing to check
+ * in the critical path (SDQCR).
+ */
+ if (dq->stat & QM_DQRR_STAT_FQ_EMPTY)
+ fq_clear(fq, QMAN_FQ_STATE_NE);
+ /*
+ * This is duplicated from the SDQCR code, but we
+ * have stuff to do before *and* after this callback,
+ * and we don't want multiple if()s in the critical
+ * path (SDQCR).
+ */
+ res = fq->cb.dqrr(p, fq, dq);
+ if (res == qman_cb_dqrr_stop)
+ break;
+ /* Check for VDQCR completion */
+ if (dq->stat & QM_DQRR_STAT_DQCR_EXPIRED)
+ clear_vdqcr(p, fq);
+ } else {
+ /* SDQCR: contextB points to the FQ */
+ fq = tag_to_fq(dq->contextB);
+ /* Now let the callback do its stuff */
+ res = fq->cb.dqrr(p, fq, dq);
+ /*
+ * The callback can request that we exit without
+ * consuming this entry nor advancing;
+ */
+ if (res == qman_cb_dqrr_stop)
+ break;
+ }
+ /* Interpret 'dq' from a driver perspective. */
+ /*
+ * Parking isn't possible unless HELDACTIVE was set. NB,
+ * FORCEELIGIBLE implies HELDACTIVE, so we only need to
+ * check for HELDACTIVE to cover both.
+ */
+ DPAA_ASSERT((dq->stat & QM_DQRR_STAT_FQ_HELDACTIVE) ||
+ (res != qman_cb_dqrr_park));
+ /* just means "skip it, I'll consume it myself later on" */
+ if (res != qman_cb_dqrr_defer)
+ qm_dqrr_cdc_consume_1ptr(&p->p, dq,
+ res == qman_cb_dqrr_park);
+ /* Move forward */
+ qm_dqrr_next(&p->p);
+ /*
+ * Entry processed and consumed, increment our counter. The
+ * callback can request that we exit after consuming the
+ * entry, and we also exit if we reach our processing limit,
+ * so loop back only if neither of these conditions is met.
+ */
+ } while (++limit < poll_limit && res != qman_cb_dqrr_consume_stop);
+
+ return limit;
+}
+
+void qman_p_irqsource_add(struct qman_portal *p, u32 bits)
+{
+ unsigned long irqflags;
+
+ local_irq_save(irqflags);
+ set_bits(bits & QM_PIRQ_VISIBLE, &p->irq_sources);
+ qm_out(&p->p, QM_REG_IER, p->irq_sources);
+ local_irq_restore(irqflags);
+}
+EXPORT_SYMBOL(qman_p_irqsource_add);
+
+void qman_p_irqsource_remove(struct qman_portal *p, u32 bits)
+{
+ unsigned long irqflags;
+ u32 ier;
+
+ /*
+ * Our interrupt handler only processes+clears status register bits that
+ * are in p->irq_sources. As we're trimming that mask, if one of them
+ * were to assert in the status register just before we remove it from
+ * the enable register, there would be an interrupt-storm when we
+ * release the IRQ lock. So we wait for the enable register update to
+ * take effect in h/w (by reading it back) and then clear all other bits
+ * in the status register. Ie. we clear them from ISR once it's certain
+ * IER won't allow them to reassert.
+ */
+ local_irq_save(irqflags);
+ bits &= QM_PIRQ_VISIBLE;
+ clear_bits(bits, &p->irq_sources);
+ qm_out(&p->p, QM_REG_IER, p->irq_sources);
+ ier = qm_in(&p->p, QM_REG_IER);
+ /*
+ * Using "~ier" (rather than "bits" or "~p->irq_sources") creates a
+ * data-dependency, ie. to protect against re-ordering.
+ */
+ qm_out(&p->p, QM_REG_ISR, ~ier);
+ local_irq_restore(irqflags);
+}
+EXPORT_SYMBOL(qman_p_irqsource_remove);
+
+const cpumask_t *qman_affine_cpus(void)
+{
+ return &affine_mask;
+}
+EXPORT_SYMBOL(qman_affine_cpus);
+
+u16 qman_affine_channel(int cpu)
+{
+ if (cpu < 0) {
+ struct qman_portal *portal = get_affine_portal();
+
+ cpu = portal->config->cpu;
+ put_affine_portal();
+ }
+ WARN_ON(!cpumask_test_cpu(cpu, &affine_mask));
+ return affine_channels[cpu];
+}
+EXPORT_SYMBOL(qman_affine_channel);
+
+struct qman_portal *qman_get_affine_portal(int cpu)
+{
+ return affine_portals[cpu];
+}
+EXPORT_SYMBOL(qman_get_affine_portal);
+
+int qman_p_poll_dqrr(struct qman_portal *p, unsigned int limit)
+{
+ return __poll_portal_fast(p, limit);
+}
+EXPORT_SYMBOL(qman_p_poll_dqrr);
+
+void qman_p_static_dequeue_add(struct qman_portal *p, u32 pools)
+{
+ unsigned long irqflags;
+
+ local_irq_save(irqflags);
+ pools &= p->config->pools;
+ p->sdqcr |= pools;
+ qm_dqrr_sdqcr_set(&p->p, p->sdqcr);
+ local_irq_restore(irqflags);
+}
+EXPORT_SYMBOL(qman_p_static_dequeue_add);
+
+/* Frame queue API */
+
+static const char *mcr_result_str(u8 result)
+{
+ switch (result) {
+ case QM_MCR_RESULT_NULL:
+ return "QM_MCR_RESULT_NULL";
+ case QM_MCR_RESULT_OK:
+ return "QM_MCR_RESULT_OK";
+ case QM_MCR_RESULT_ERR_FQID:
+ return "QM_MCR_RESULT_ERR_FQID";
+ case QM_MCR_RESULT_ERR_FQSTATE:
+ return "QM_MCR_RESULT_ERR_FQSTATE";
+ case QM_MCR_RESULT_ERR_NOTEMPTY:
+ return "QM_MCR_RESULT_ERR_NOTEMPTY";
+ case QM_MCR_RESULT_PENDING:
+ return "QM_MCR_RESULT_PENDING";
+ case QM_MCR_RESULT_ERR_BADCOMMAND:
+ return "QM_MCR_RESULT_ERR_BADCOMMAND";
+ }
+ return "<unknown MCR result>";
+}
+
+int qman_create_fq(u32 fqid, u32 flags, struct qman_fq *fq)
+{
+ if (flags & QMAN_FQ_FLAG_DYNAMIC_FQID) {
+ int ret = qman_alloc_fqid(&fqid);
+
+ if (ret)
+ return ret;
+ }
+ fq->fqid = fqid;
+ fq->flags = flags;
+ fq->state = qman_fq_state_oos;
+ fq->cgr_groupid = 0;
+
+ /* A context_b of 0 is allegedly special, so don't use that fqid */
+ if (fqid == 0 || fqid >= num_fqids) {
+ WARN(1, "bad fqid %d\n", fqid);
+ return -EINVAL;
+ }
+
+ fq->idx = fqid * 2;
+ if (flags & QMAN_FQ_FLAG_NO_MODIFY)
+ fq->idx++;
+
+ WARN_ON(fq_table[fq->idx]);
+ fq_table[fq->idx] = fq;
+
+ return 0;
+}
+EXPORT_SYMBOL(qman_create_fq);
+
+void qman_destroy_fq(struct qman_fq *fq)
+{
+ /*
+ * We don't need to lock the FQ as it is a pre-condition that the FQ be
+ * quiesced. Instead, run some checks.
+ */
+ switch (fq->state) {
+ case qman_fq_state_parked:
+ case qman_fq_state_oos:
+ if (fq_isset(fq, QMAN_FQ_FLAG_DYNAMIC_FQID))
+ qman_release_fqid(fq->fqid);
+
+ DPAA_ASSERT(fq_table[fq->idx]);
+ fq_table[fq->idx] = NULL;
+ return;
+ default:
+ break;
+ }
+ DPAA_ASSERT(NULL == "qman_free_fq() on unquiesced FQ!");
+}
+EXPORT_SYMBOL(qman_destroy_fq);
+
+u32 qman_fq_fqid(struct qman_fq *fq)
+{
+ return fq->fqid;
+}
+EXPORT_SYMBOL(qman_fq_fqid);
+
+int qman_init_fq(struct qman_fq *fq, u32 flags, struct qm_mcc_initfq *opts)
+{
+ union qm_mc_command *mcc;
+ union qm_mc_result *mcr;
+ struct qman_portal *p;
+ u8 res, myverb;
+ int ret = 0;
+
+ myverb = (flags & QMAN_INITFQ_FLAG_SCHED)
+ ? QM_MCC_VERB_INITFQ_SCHED : QM_MCC_VERB_INITFQ_PARKED;
+
+ if (fq->state != qman_fq_state_oos &&
+ fq->state != qman_fq_state_parked)
+ return -EINVAL;
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ if (fq_isset(fq, QMAN_FQ_FLAG_NO_MODIFY))
+ return -EINVAL;
+#endif
+ if (opts && (opts->we_mask & QM_INITFQ_WE_OAC)) {
+ /* And can't be set at the same time as TDTHRESH */
+ if (opts->we_mask & QM_INITFQ_WE_TDTHRESH)
+ return -EINVAL;
+ }
+ /* Issue an INITFQ_[PARKED|SCHED] management command */
+ p = get_affine_portal();
+ if (fq_isset(fq, QMAN_FQ_STATE_CHANGING) ||
+ (fq->state != qman_fq_state_oos &&
+ fq->state != qman_fq_state_parked)) {
+ ret = -EBUSY;
+ goto out;
+ }
+ mcc = qm_mc_start(&p->p);
+ if (opts)
+ mcc->initfq = *opts;
+ mcc->initfq.fqid = fq->fqid;
+ mcc->initfq.count = 0;
+ /*
+ * If the FQ does *not* have the TO_DCPORTAL flag, contextB is set as a
+ * demux pointer. Otherwise, the caller-provided value is allowed to
+ * stand, don't overwrite it.
+ */
+ if (fq_isclear(fq, QMAN_FQ_FLAG_TO_DCPORTAL)) {
+ dma_addr_t phys_fq;
+
+ mcc->initfq.we_mask |= QM_INITFQ_WE_CONTEXTB;
+ mcc->initfq.fqd.context_b = fq_to_tag(fq);
+ /*
+ * and the physical address - NB, if the user wasn't trying to
+ * set CONTEXTA, clear the stashing settings.
+ */
+ if (!(mcc->initfq.we_mask & QM_INITFQ_WE_CONTEXTA)) {
+ mcc->initfq.we_mask |= QM_INITFQ_WE_CONTEXTA;
+ memset(&mcc->initfq.fqd.context_a, 0,
+ sizeof(mcc->initfq.fqd.context_a));
+ } else {
+ phys_fq = dma_map_single(&p->pdev->dev, fq, sizeof(*fq),
+ DMA_TO_DEVICE);
+ qm_fqd_stashing_set64(&mcc->initfq.fqd, phys_fq);
+ }
+ }
+ if (flags & QMAN_INITFQ_FLAG_LOCAL) {
+ int wq = 0;
+
+ if (!(mcc->initfq.we_mask & QM_INITFQ_WE_DESTWQ)) {
+ mcc->initfq.we_mask |= QM_INITFQ_WE_DESTWQ;
+ wq = 4;
+ }
+ qm_fqd_set_destwq(&mcc->initfq.fqd, p->config->channel, wq);
+ }
+ qm_mc_commit(&p->p, myverb);
+ if (!qm_mc_result_timeout(&p->p, &mcr)) {
+ dev_err(p->config->dev, "MCR timeout\n");
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+
+ DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == myverb);
+ res = mcr->result;
+ if (res != QM_MCR_RESULT_OK) {
+ ret = -EIO;
+ goto out;
+ }
+ if (opts) {
+ if (opts->we_mask & QM_INITFQ_WE_FQCTRL) {
+ if (opts->fqd.fq_ctrl & QM_FQCTRL_CGE)
+ fq_set(fq, QMAN_FQ_STATE_CGR_EN);
+ else
+ fq_clear(fq, QMAN_FQ_STATE_CGR_EN);
+ }
+ if (opts->we_mask & QM_INITFQ_WE_CGID)
+ fq->cgr_groupid = opts->fqd.cgid;
+ }
+ fq->state = (flags & QMAN_INITFQ_FLAG_SCHED) ?
+ qman_fq_state_sched : qman_fq_state_parked;
+
+out:
+ put_affine_portal();
+ return ret;
+}
+EXPORT_SYMBOL(qman_init_fq);
+
+int qman_schedule_fq(struct qman_fq *fq)
+{
+ union qm_mc_command *mcc;
+ union qm_mc_result *mcr;
+ struct qman_portal *p;
+ int ret = 0;
+
+ if (fq->state != qman_fq_state_parked)
+ return -EINVAL;
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ if (fq_isset(fq, QMAN_FQ_FLAG_NO_MODIFY))
+ return -EINVAL;
+#endif
+ /* Issue a ALTERFQ_SCHED management command */
+ p = get_affine_portal();
+ if (fq_isset(fq, QMAN_FQ_STATE_CHANGING) ||
+ fq->state != qman_fq_state_parked) {
+ ret = -EBUSY;
+ goto out;
+ }
+ mcc = qm_mc_start(&p->p);
+ mcc->alterfq.fqid = fq->fqid;
+ qm_mc_commit(&p->p, QM_MCC_VERB_ALTER_SCHED);
+ if (!qm_mc_result_timeout(&p->p, &mcr)) {
+ dev_err(p->config->dev, "ALTER_SCHED timeout\n");
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+
+ DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_ALTER_SCHED);
+ if (mcr->result != QM_MCR_RESULT_OK) {
+ ret = -EIO;
+ goto out;
+ }
+ fq->state = qman_fq_state_sched;
+out:
+ put_affine_portal();
+ return ret;
+}
+EXPORT_SYMBOL(qman_schedule_fq);
+
+int qman_retire_fq(struct qman_fq *fq, u32 *flags)
+{
+ union qm_mc_command *mcc;
+ union qm_mc_result *mcr;
+ struct qman_portal *p;
+ int ret;
+ u8 res;
+
+ if (fq->state != qman_fq_state_parked &&
+ fq->state != qman_fq_state_sched)
+ return -EINVAL;
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ if (fq_isset(fq, QMAN_FQ_FLAG_NO_MODIFY))
+ return -EINVAL;
+#endif
+ p = get_affine_portal();
+ if (fq_isset(fq, QMAN_FQ_STATE_CHANGING) ||
+ fq->state == qman_fq_state_retired ||
+ fq->state == qman_fq_state_oos) {
+ ret = -EBUSY;
+ goto out;
+ }
+ mcc = qm_mc_start(&p->p);
+ mcc->alterfq.fqid = fq->fqid;
+ qm_mc_commit(&p->p, QM_MCC_VERB_ALTER_RETIRE);
+ if (!qm_mc_result_timeout(&p->p, &mcr)) {
+ dev_crit(p->config->dev, "ALTER_RETIRE timeout\n");
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+
+ DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_ALTER_RETIRE);
+ res = mcr->result;
+ /*
+ * "Elegant" would be to treat OK/PENDING the same way; set CHANGING,
+ * and defer the flags until FQRNI or FQRN (respectively) show up. But
+ * "Friendly" is to process OK immediately, and not set CHANGING. We do
+ * friendly, otherwise the caller doesn't necessarily have a fully
+ * "retired" FQ on return even if the retirement was immediate. However
+ * this does mean some code duplication between here and
+ * fq_state_change().
+ */
+ if (res == QM_MCR_RESULT_OK) {
+ ret = 0;
+ /* Process 'fq' right away, we'll ignore FQRNI */
+ if (mcr->alterfq.fqs & QM_MCR_FQS_NOTEMPTY)
+ fq_set(fq, QMAN_FQ_STATE_NE);
+ if (mcr->alterfq.fqs & QM_MCR_FQS_ORLPRESENT)
+ fq_set(fq, QMAN_FQ_STATE_ORL);
+ if (flags)
+ *flags = fq->flags;
+ fq->state = qman_fq_state_retired;
+ if (fq->cb.fqs) {
+ /*
+ * Another issue with supporting "immediate" retirement
+ * is that we're forced to drop FQRNIs, because by the
+ * time they're seen it may already be "too late" (the
+ * fq may have been OOS'd and free()'d already). But if
+ * the upper layer wants a callback whether it's
+ * immediate or not, we have to fake a "MR" entry to
+ * look like an FQRNI...
+ */
+ union qm_mr_entry msg;
+
+ msg.verb = QM_MR_VERB_FQRNI;
+ msg.fq.fqs = mcr->alterfq.fqs;
+ msg.fq.fqid = fq->fqid;
+ msg.fq.contextB = fq_to_tag(fq);
+ fq->cb.fqs(p, fq, &msg);
+ }
+ } else if (res == QM_MCR_RESULT_PENDING) {
+ ret = 1;
+ fq_set(fq, QMAN_FQ_STATE_CHANGING);
+ } else {
+ ret = -EIO;
+ }
+out:
+ put_affine_portal();
+ return ret;
+}
+EXPORT_SYMBOL(qman_retire_fq);
+
+int qman_oos_fq(struct qman_fq *fq)
+{
+ union qm_mc_command *mcc;
+ union qm_mc_result *mcr;
+ struct qman_portal *p;
+ int ret = 0;
+
+ if (fq->state != qman_fq_state_retired)
+ return -EINVAL;
+#ifdef CONFIG_FSL_DPAA_CHECKING
+ if (fq_isset(fq, QMAN_FQ_FLAG_NO_MODIFY))
+ return -EINVAL;
+#endif
+ p = get_affine_portal();
+ if (fq_isset(fq, QMAN_FQ_STATE_BLOCKOOS) ||
+ fq->state != qman_fq_state_retired) {
+ ret = -EBUSY;
+ goto out;
+ }
+ mcc = qm_mc_start(&p->p);
+ mcc->alterfq.fqid = fq->fqid;
+ qm_mc_commit(&p->p, QM_MCC_VERB_ALTER_OOS);
+ if (!qm_mc_result_timeout(&p->p, &mcr)) {
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+ DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_ALTER_OOS);
+ if (mcr->result != QM_MCR_RESULT_OK) {
+ ret = -EIO;
+ goto out;
+ }
+ fq->state = qman_fq_state_oos;
+out:
+ put_affine_portal();
+ return ret;
+}
+EXPORT_SYMBOL(qman_oos_fq);
+
+int qman_query_fq(struct qman_fq *fq, struct qm_fqd *fqd)
+{
+ union qm_mc_command *mcc;
+ union qm_mc_result *mcr;
+ struct qman_portal *p = get_affine_portal();
+ int ret = 0;
+
+ mcc = qm_mc_start(&p->p);
+ mcc->queryfq.fqid = fq->fqid;
+ qm_mc_commit(&p->p, QM_MCC_VERB_QUERYFQ);
+ if (!qm_mc_result_timeout(&p->p, &mcr)) {
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+
+ DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_QUERYFQ);
+ if (mcr->result == QM_MCR_RESULT_OK)
+ *fqd = mcr->queryfq.fqd;
+ else
+ ret = -EIO;
+out:
+ put_affine_portal();
+ return ret;
+}
+
+static int qman_query_fq_np(struct qman_fq *fq,
+ struct qm_mcr_queryfq_np *np)
+{
+ union qm_mc_command *mcc;
+ union qm_mc_result *mcr;
+ struct qman_portal *p = get_affine_portal();
+ int ret = 0;
+
+ mcc = qm_mc_start(&p->p);
+ mcc->queryfq.fqid = fq->fqid;
+ qm_mc_commit(&p->p, QM_MCC_VERB_QUERYFQ_NP);
+ if (!qm_mc_result_timeout(&p->p, &mcr)) {
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+
+ DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_QUERYFQ_NP);
+ if (mcr->result == QM_MCR_RESULT_OK)
+ *np = mcr->queryfq_np;
+ else if (mcr->result == QM_MCR_RESULT_ERR_FQID)
+ ret = -ERANGE;
+ else
+ ret = -EIO;
+out:
+ put_affine_portal();
+ return ret;
+}
+
+static int qman_query_cgr(struct qman_cgr *cgr,
+ struct qm_mcr_querycgr *cgrd)
+{
+ union qm_mc_command *mcc;
+ union qm_mc_result *mcr;
+ struct qman_portal *p = get_affine_portal();
+ int ret = 0;
+
+ mcc = qm_mc_start(&p->p);
+ mcc->querycgr.cgid = cgr->cgrid;
+ qm_mc_commit(&p->p, QM_MCC_VERB_QUERYCGR);
+ if (!qm_mc_result_timeout(&p->p, &mcr)) {
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+ DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCC_VERB_QUERYCGR);
+ if (mcr->result == QM_MCR_RESULT_OK)
+ *cgrd = mcr->querycgr;
+ else {
+ dev_err(p->config->dev, "QUERY_CGR failed: %s\n",
+ mcr_result_str(mcr->result));
+ ret = -EIO;
+ }
+out:
+ put_affine_portal();
+ return ret;
+}
+
+int qman_query_cgr_congested(struct qman_cgr *cgr, bool *result)
+{
+ struct qm_mcr_querycgr query_cgr;
+ int err;
+
+ err = qman_query_cgr(cgr, &query_cgr);
+ if (err)
+ return err;
+
+ *result = !!query_cgr.cgr.cs;
+ return 0;
+}
+EXPORT_SYMBOL(qman_query_cgr_congested);
+
+/* internal function used as a wait_event() expression */
+static int set_p_vdqcr(struct qman_portal *p, struct qman_fq *fq, u32 vdqcr)
+{
+ unsigned long irqflags;
+ int ret = -EBUSY;
+
+ local_irq_save(irqflags);
+ if (p->vdqcr_owned)
+ goto out;
+ if (fq_isset(fq, QMAN_FQ_STATE_VDQCR))
+ goto out;
+
+ fq_set(fq, QMAN_FQ_STATE_VDQCR);
+ p->vdqcr_owned = fq;
+ qm_dqrr_vdqcr_set(&p->p, vdqcr);
+ ret = 0;
+out:
+ local_irq_restore(irqflags);
+ return ret;
+}
+
+static int set_vdqcr(struct qman_portal **p, struct qman_fq *fq, u32 vdqcr)
+{
+ int ret;
+
+ *p = get_affine_portal();
+ ret = set_p_vdqcr(*p, fq, vdqcr);
+ put_affine_portal();
+ return ret;
+}
+
+static int wait_vdqcr_start(struct qman_portal **p, struct qman_fq *fq,
+ u32 vdqcr, u32 flags)
+{
+ int ret = 0;
+
+ if (flags & QMAN_VOLATILE_FLAG_WAIT_INT)
+ ret = wait_event_interruptible(affine_queue,
+ !set_vdqcr(p, fq, vdqcr));
+ else
+ wait_event(affine_queue, !set_vdqcr(p, fq, vdqcr));
+ return ret;
+}
+
+int qman_volatile_dequeue(struct qman_fq *fq, u32 flags, u32 vdqcr)
+{
+ struct qman_portal *p;
+ int ret;
+
+ if (fq->state != qman_fq_state_parked &&
+ fq->state != qman_fq_state_retired)
+ return -EINVAL;
+ if (vdqcr & QM_VDQCR_FQID_MASK)
+ return -EINVAL;
+ if (fq_isset(fq, QMAN_FQ_STATE_VDQCR))
+ return -EBUSY;
+ vdqcr = (vdqcr & ~QM_VDQCR_FQID_MASK) | fq->fqid;
+ if (flags & QMAN_VOLATILE_FLAG_WAIT)
+ ret = wait_vdqcr_start(&p, fq, vdqcr, flags);
+ else
+ ret = set_vdqcr(&p, fq, vdqcr);
+ if (ret)
+ return ret;
+ /* VDQCR is set */
+ if (flags & QMAN_VOLATILE_FLAG_FINISH) {
+ if (flags & QMAN_VOLATILE_FLAG_WAIT_INT)
+ /*
+ * NB: don't propagate any error - the caller wouldn't
+ * know whether the VDQCR was issued or not. A signal
+ * could arrive after returning anyway, so the caller
+ * can check signal_pending() if that's an issue.
+ */
+ wait_event_interruptible(affine_queue,
+ !fq_isset(fq, QMAN_FQ_STATE_VDQCR));
+ else
+ wait_event(affine_queue,
+ !fq_isset(fq, QMAN_FQ_STATE_VDQCR));
+ }
+ return 0;
+}
+EXPORT_SYMBOL(qman_volatile_dequeue);
+
+static void update_eqcr_ci(struct qman_portal *p, u8 avail)
+{
+ if (avail)
+ qm_eqcr_cce_prefetch(&p->p);
+ else
+ qm_eqcr_cce_update(&p->p);
+}
+
+int qman_enqueue(struct qman_fq *fq, const struct qm_fd *fd)
+{
+ struct qman_portal *p;
+ struct qm_eqcr_entry *eq;
+ unsigned long irqflags;
+ u8 avail;
+
+ p = get_affine_portal();
+ local_irq_save(irqflags);
+
+ if (p->use_eqcr_ci_stashing) {
+ /*
+ * The stashing case is easy, only update if we need to in
+ * order to try and liberate ring entries.
+ */
+ eq = qm_eqcr_start_stash(&p->p);
+ } else {
+ /*
+ * The non-stashing case is harder, need to prefetch ahead of
+ * time.
+ */
+ avail = qm_eqcr_get_avail(&p->p);
+ if (avail < 2)
+ update_eqcr_ci(p, avail);
+ eq = qm_eqcr_start_no_stash(&p->p);
+ }
+
+ if (unlikely(!eq))
+ goto out;
+
+ eq->fqid = fq->fqid;
+ eq->tag = fq_to_tag(fq);
+ eq->fd = *fd;
+
+ qm_eqcr_pvb_commit(&p->p, QM_EQCR_VERB_CMD_ENQUEUE);
+out:
+ local_irq_restore(irqflags);
+ put_affine_portal();
+ return 0;
+}
+EXPORT_SYMBOL(qman_enqueue);
+
+static int qm_modify_cgr(struct qman_cgr *cgr, u32 flags,
+ struct qm_mcc_initcgr *opts)
+{
+ union qm_mc_command *mcc;
+ union qm_mc_result *mcr;
+ struct qman_portal *p = get_affine_portal();
+ u8 verb = QM_MCC_VERB_MODIFYCGR;
+ int ret = 0;
+
+ mcc = qm_mc_start(&p->p);
+ if (opts)
+ mcc->initcgr = *opts;
+ mcc->initcgr.cgid = cgr->cgrid;
+ if (flags & QMAN_CGR_FLAG_USE_INIT)
+ verb = QM_MCC_VERB_INITCGR;
+ qm_mc_commit(&p->p, verb);
+ if (!qm_mc_result_timeout(&p->p, &mcr)) {
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+
+ DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == verb);
+ if (mcr->result != QM_MCR_RESULT_OK)
+ ret = -EIO;
+
+out:
+ put_affine_portal();
+ return ret;
+}
+
+#define PORTAL_IDX(n) (n->config->channel - QM_CHANNEL_SWPORTAL0)
+#define TARG_MASK(n) (BIT(31) >> PORTAL_IDX(n))
+
+static u8 qman_cgr_cpus[CGR_NUM];
+
+void qman_init_cgr_all(void)
+{
+ struct qman_cgr cgr;
+ int err_cnt = 0;
+
+ for (cgr.cgrid = 0; cgr.cgrid < CGR_NUM; cgr.cgrid++) {
+ if (qm_modify_cgr(&cgr, QMAN_CGR_FLAG_USE_INIT, NULL))
+ err_cnt++;
+ }
+
+ if (err_cnt)
+ pr_err("Warning: %d error%s while initialising CGR h/w\n",
+ err_cnt, (err_cnt > 1) ? "s" : "");
+}
+
+int qman_create_cgr(struct qman_cgr *cgr, u32 flags,
+ struct qm_mcc_initcgr *opts)
+{
+ struct qm_mcr_querycgr cgr_state;
+ struct qm_mcc_initcgr local_opts = {};
+ int ret;
+ struct qman_portal *p;
+
+ /*
+ * We have to check that the provided CGRID is within the limits of the
+ * data-structures, for obvious reasons. However we'll let h/w take
+ * care of determining whether it's within the limits of what exists on
+ * the SoC.
+ */
+ if (cgr->cgrid >= CGR_NUM)
+ return -EINVAL;
+
+ preempt_disable();
+ p = get_affine_portal();
+ qman_cgr_cpus[cgr->cgrid] = smp_processor_id();
+ preempt_enable();
+
+ cgr->chan = p->config->channel;
+ spin_lock(&p->cgr_lock);
+
+ if (opts) {
+ ret = qman_query_cgr(cgr, &cgr_state);
+ if (ret)
+ goto out;
+ if (opts)
+ local_opts = *opts;
+ if ((qman_ip_rev & 0xFF00) >= QMAN_REV30)
+ local_opts.cgr.cscn_targ_upd_ctrl =
+ QM_CGR_TARG_UDP_CTRL_WRITE_BIT | PORTAL_IDX(p);
+ else
+ /* Overwrite TARG */
+ local_opts.cgr.cscn_targ = cgr_state.cgr.cscn_targ |
+ TARG_MASK(p);
+ local_opts.we_mask |= QM_CGR_WE_CSCN_TARG;
+
+ /* send init if flags indicate so */
+ if (opts && (flags & QMAN_CGR_FLAG_USE_INIT))
+ ret = qm_modify_cgr(cgr, QMAN_CGR_FLAG_USE_INIT,
+ &local_opts);
+ else
+ ret = qm_modify_cgr(cgr, 0, &local_opts);
+ if (ret)
+ goto out;
+ }
+
+ list_add(&cgr->node, &p->cgr_cbs);
+
+ /* Determine if newly added object requires its callback to be called */
+ ret = qman_query_cgr(cgr, &cgr_state);
+ if (ret) {
+ /* we can't go back, so proceed and return success */
+ dev_err(p->config->dev, "CGR HW state partially modified\n");
+ ret = 0;
+ goto out;
+ }
+ if (cgr->cb && cgr_state.cgr.cscn_en &&
+ qman_cgrs_get(&p->cgrs[1], cgr->cgrid))
+ cgr->cb(p, cgr, 1);
+out:
+ spin_unlock(&p->cgr_lock);
+ put_affine_portal();
+ return ret;
+}
+EXPORT_SYMBOL(qman_create_cgr);
+
+int qman_delete_cgr(struct qman_cgr *cgr)
+{
+ unsigned long irqflags;
+ struct qm_mcr_querycgr cgr_state;
+ struct qm_mcc_initcgr local_opts;
+ int ret = 0;
+ struct qman_cgr *i;
+ struct qman_portal *p = get_affine_portal();
+
+ if (cgr->chan != p->config->channel) {
+ /* attempt to delete from other portal than creator */
+ dev_err(p->config->dev, "CGR not owned by current portal");
+ dev_dbg(p->config->dev, " create 0x%x, delete 0x%x\n",
+ cgr->chan, p->config->channel);
+
+ ret = -EINVAL;
+ goto put_portal;
+ }
+ memset(&local_opts, 0, sizeof(struct qm_mcc_initcgr));
+ spin_lock_irqsave(&p->cgr_lock, irqflags);
+ list_del(&cgr->node);
+ /*
+ * If there are no other CGR objects for this CGRID in the list,
+ * update CSCN_TARG accordingly
+ */
+ list_for_each_entry(i, &p->cgr_cbs, node)
+ if (i->cgrid == cgr->cgrid && i->cb)
+ goto release_lock;
+ ret = qman_query_cgr(cgr, &cgr_state);
+ if (ret) {
+ /* add back to the list */
+ list_add(&cgr->node, &p->cgr_cbs);
+ goto release_lock;
+ }
+ /* Overwrite TARG */
+ local_opts.we_mask = QM_CGR_WE_CSCN_TARG;
+ if ((qman_ip_rev & 0xFF00) >= QMAN_REV30)
+ local_opts.cgr.cscn_targ_upd_ctrl = PORTAL_IDX(p);
+ else
+ local_opts.cgr.cscn_targ = cgr_state.cgr.cscn_targ &
+ ~(TARG_MASK(p));
+ ret = qm_modify_cgr(cgr, 0, &local_opts);
+ if (ret)
+ /* add back to the list */
+ list_add(&cgr->node, &p->cgr_cbs);
+release_lock:
+ spin_unlock_irqrestore(&p->cgr_lock, irqflags);
+put_portal:
+ put_affine_portal();
+ return ret;
+}
+EXPORT_SYMBOL(qman_delete_cgr);
+
+struct cgr_comp {
+ struct qman_cgr *cgr;
+ struct completion completion;
+};
+
+static int qman_delete_cgr_thread(void *p)
+{
+ struct cgr_comp *cgr_comp = (struct cgr_comp *)p;
+ int ret;
+
+ ret = qman_delete_cgr(cgr_comp->cgr);
+ complete(&cgr_comp->completion);
+
+ return ret;
+}
+
+void qman_delete_cgr_safe(struct qman_cgr *cgr)
+{
+ struct task_struct *thread;
+ struct cgr_comp cgr_comp;
+
+ preempt_disable();
+ if (qman_cgr_cpus[cgr->cgrid] != smp_processor_id()) {
+ init_completion(&cgr_comp.completion);
+ cgr_comp.cgr = cgr;
+ thread = kthread_create(qman_delete_cgr_thread, &cgr_comp,
+ "cgr_del");
+
+ if (IS_ERR(thread))
+ goto out;
+
+ kthread_bind(thread, qman_cgr_cpus[cgr->cgrid]);
+ wake_up_process(thread);
+ wait_for_completion(&cgr_comp.completion);
+ preempt_enable();
+ return;
+ }
+out:
+ qman_delete_cgr(cgr);
+ preempt_enable();
+}
+EXPORT_SYMBOL(qman_delete_cgr_safe);
+
+/* Cleanup FQs */
+
+static int _qm_mr_consume_and_match_verb(struct qm_portal *p, int v)
+{
+ const union qm_mr_entry *msg;
+ int found = 0;
+
+ qm_mr_pvb_update(p);
+ msg = qm_mr_current(p);
+ while (msg) {
+ if ((msg->verb & QM_MR_VERB_TYPE_MASK) == v)
+ found = 1;
+ qm_mr_next(p);
+ qm_mr_cci_consume_to_current(p);
+ qm_mr_pvb_update(p);
+ msg = qm_mr_current(p);
+ }
+ return found;
+}
+
+static int _qm_dqrr_consume_and_match(struct qm_portal *p, u32 fqid, int s,
+ bool wait)
+{
+ const struct qm_dqrr_entry *dqrr;
+ int found = 0;
+
+ do {
+ qm_dqrr_pvb_update(p);
+ dqrr = qm_dqrr_current(p);
+ if (!dqrr)
+ cpu_relax();
+ } while (wait && !dqrr);
+
+ while (dqrr) {
+ if (dqrr->fqid == fqid && (dqrr->stat & s))
+ found = 1;
+ qm_dqrr_cdc_consume_1ptr(p, dqrr, 0);
+ qm_dqrr_pvb_update(p);
+ qm_dqrr_next(p);
+ dqrr = qm_dqrr_current(p);
+ }
+ return found;
+}
+
+#define qm_mr_drain(p, V) \
+ _qm_mr_consume_and_match_verb(p, QM_MR_VERB_##V)
+
+#define qm_dqrr_drain(p, f, S) \
+ _qm_dqrr_consume_and_match(p, f, QM_DQRR_STAT_##S, false)
+
+#define qm_dqrr_drain_wait(p, f, S) \
+ _qm_dqrr_consume_and_match(p, f, QM_DQRR_STAT_##S, true)
+
+#define qm_dqrr_drain_nomatch(p) \
+ _qm_dqrr_consume_and_match(p, 0, 0, false)
+
+static int qman_shutdown_fq(u32 fqid)
+{
+ struct qman_portal *p;
+ struct device *dev;
+ union qm_mc_command *mcc;
+ union qm_mc_result *mcr;
+ int orl_empty, drain = 0, ret = 0;
+ u32 channel, wq, res;
+ u8 state;
+
+ p = get_affine_portal();
+ dev = p->config->dev;
+ /* Determine the state of the FQID */
+ mcc = qm_mc_start(&p->p);
+ mcc->queryfq_np.fqid = fqid;
+ qm_mc_commit(&p->p, QM_MCC_VERB_QUERYFQ_NP);
+ if (!qm_mc_result_timeout(&p->p, &mcr)) {
+ dev_err(dev, "QUERYFQ_NP timeout\n");
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+
+ DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_QUERYFQ_NP);
+ state = mcr->queryfq_np.state & QM_MCR_NP_STATE_MASK;
+ if (state == QM_MCR_NP_STATE_OOS)
+ goto out; /* Already OOS, no need to do anymore checks */
+
+ /* Query which channel the FQ is using */
+ mcc = qm_mc_start(&p->p);
+ mcc->queryfq.fqid = fqid;
+ qm_mc_commit(&p->p, QM_MCC_VERB_QUERYFQ);
+ if (!qm_mc_result_timeout(&p->p, &mcr)) {
+ dev_err(dev, "QUERYFQ timeout\n");
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+
+ DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_QUERYFQ);
+ /* Need to store these since the MCR gets reused */
+ channel = qm_fqd_get_chan(&mcr->queryfq.fqd);
+ wq = qm_fqd_get_wq(&mcr->queryfq.fqd);
+
+ switch (state) {
+ case QM_MCR_NP_STATE_TEN_SCHED:
+ case QM_MCR_NP_STATE_TRU_SCHED:
+ case QM_MCR_NP_STATE_ACTIVE:
+ case QM_MCR_NP_STATE_PARKED:
+ orl_empty = 0;
+ mcc = qm_mc_start(&p->p);
+ mcc->alterfq.fqid = fqid;
+ qm_mc_commit(&p->p, QM_MCC_VERB_ALTER_RETIRE);
+ if (!qm_mc_result_timeout(&p->p, &mcr)) {
+ dev_err(dev, "QUERYFQ_NP timeout\n");
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+ DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) ==
+ QM_MCR_VERB_ALTER_RETIRE);
+ res = mcr->result; /* Make a copy as we reuse MCR below */
+
+ if (res == QM_MCR_RESULT_PENDING) {
+ /*
+ * Need to wait for the FQRN in the message ring, which
+ * will only occur once the FQ has been drained. In
+ * order for the FQ to drain the portal needs to be set
+ * to dequeue from the channel the FQ is scheduled on
+ */
+ int found_fqrn = 0;
+ u16 dequeue_wq = 0;
+
+ /* Flag that we need to drain FQ */
+ drain = 1;
+
+ if (channel >= qm_channel_pool1 &&
+ channel < qm_channel_pool1 + 15) {
+ /* Pool channel, enable the bit in the portal */
+ dequeue_wq = (channel -
+ qm_channel_pool1 + 1)<<4 | wq;
+ } else if (channel < qm_channel_pool1) {
+ /* Dedicated channel */
+ dequeue_wq = wq;
+ } else {
+ dev_err(dev, "Can't recover FQ 0x%x, ch: 0x%x",
+ fqid, channel);
+ ret = -EBUSY;
+ goto out;
+ }
+ /* Set the sdqcr to drain this channel */
+ if (channel < qm_channel_pool1)
+ qm_dqrr_sdqcr_set(&p->p,
+ QM_SDQCR_TYPE_ACTIVE |
+ QM_SDQCR_CHANNELS_DEDICATED);
+ else
+ qm_dqrr_sdqcr_set(&p->p,
+ QM_SDQCR_TYPE_ACTIVE |
+ QM_SDQCR_CHANNELS_POOL_CONV
+ (channel));
+ do {
+ /* Keep draining DQRR while checking the MR*/
+ qm_dqrr_drain_nomatch(&p->p);
+ /* Process message ring too */
+ found_fqrn = qm_mr_drain(&p->p, FQRN);
+ cpu_relax();
+ } while (!found_fqrn);
+
+ }
+ if (res != QM_MCR_RESULT_OK &&
+ res != QM_MCR_RESULT_PENDING) {
+ dev_err(dev, "retire_fq failed: FQ 0x%x, res=0x%x\n",
+ fqid, res);
+ ret = -EIO;
+ goto out;
+ }
+ if (!(mcr->alterfq.fqs & QM_MCR_FQS_ORLPRESENT)) {
+ /*
+ * ORL had no entries, no need to wait until the
+ * ERNs come in
+ */
+ orl_empty = 1;
+ }
+ /*
+ * Retirement succeeded, check to see if FQ needs
+ * to be drained
+ */
+ if (drain || mcr->alterfq.fqs & QM_MCR_FQS_NOTEMPTY) {
+ /* FQ is Not Empty, drain using volatile DQ commands */
+ do {
+ u32 vdqcr = fqid | QM_VDQCR_NUMFRAMES_SET(3);
+
+ qm_dqrr_vdqcr_set(&p->p, vdqcr);
+ /*
+ * Wait for a dequeue and process the dequeues,
+ * making sure to empty the ring completely
+ */
+ } while (qm_dqrr_drain_wait(&p->p, fqid, FQ_EMPTY));
+ }
+ qm_dqrr_sdqcr_set(&p->p, 0);
+
+ while (!orl_empty) {
+ /* Wait for the ORL to have been completely drained */
+ orl_empty = qm_mr_drain(&p->p, FQRL);
+ cpu_relax();
+ }
+ mcc = qm_mc_start(&p->p);
+ mcc->alterfq.fqid = fqid;
+ qm_mc_commit(&p->p, QM_MCC_VERB_ALTER_OOS);
+ if (!qm_mc_result_timeout(&p->p, &mcr)) {
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+
+ DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) ==
+ QM_MCR_VERB_ALTER_OOS);
+ if (mcr->result != QM_MCR_RESULT_OK) {
+ dev_err(dev, "OOS after drain fail: FQ 0x%x (0x%x)\n",
+ fqid, mcr->result);
+ ret = -EIO;
+ goto out;
+ }
+ break;
+
+ case QM_MCR_NP_STATE_RETIRED:
+ /* Send OOS Command */
+ mcc = qm_mc_start(&p->p);
+ mcc->alterfq.fqid = fqid;
+ qm_mc_commit(&p->p, QM_MCC_VERB_ALTER_OOS);
+ if (!qm_mc_result_timeout(&p->p, &mcr)) {
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+
+ DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) ==
+ QM_MCR_VERB_ALTER_OOS);
+ if (mcr->result) {
+ dev_err(dev, "OOS fail: FQ 0x%x (0x%x)\n",
+ fqid, mcr->result);
+ ret = -EIO;
+ goto out;
+ }
+ break;
+
+ case QM_MCR_NP_STATE_OOS:
+ /* Done */
+ break;
+
+ default:
+ ret = -EIO;
+ }
+
+out:
+ put_affine_portal();
+ return ret;
+}
+
+const struct qm_portal_config *qman_get_qm_portal_config(
+ struct qman_portal *portal)
+{
+ return portal->config;
+}
+
+struct gen_pool *qm_fqalloc; /* FQID allocator */
+struct gen_pool *qm_qpalloc; /* pool-channel allocator */
+struct gen_pool *qm_cgralloc; /* CGR ID allocator */
+
+static int qman_alloc_range(struct gen_pool *p, u32 *result, u32 cnt)
+{
+ unsigned long addr;
+
+ addr = gen_pool_alloc(p, cnt);
+ if (!addr)
+ return -ENOMEM;
+
+ *result = addr & ~DPAA_GENALLOC_OFF;
+
+ return 0;
+}
+
+int qman_alloc_fqid_range(u32 *result, u32 count)
+{
+ return qman_alloc_range(qm_fqalloc, result, count);
+}
+EXPORT_SYMBOL(qman_alloc_fqid_range);
+
+int qman_alloc_pool_range(u32 *result, u32 count)
+{
+ return qman_alloc_range(qm_qpalloc, result, count);
+}
+EXPORT_SYMBOL(qman_alloc_pool_range);
+
+int qman_alloc_cgrid_range(u32 *result, u32 count)
+{
+ return qman_alloc_range(qm_cgralloc, result, count);
+}
+EXPORT_SYMBOL(qman_alloc_cgrid_range);
+
+int qman_release_fqid(u32 fqid)
+{
+ int ret = qman_shutdown_fq(fqid);
+
+ if (ret) {
+ pr_debug("FQID %d leaked\n", fqid);
+ return ret;
+ }
+
+ gen_pool_free(qm_fqalloc, fqid | DPAA_GENALLOC_OFF, 1);
+ return 0;
+}
+EXPORT_SYMBOL(qman_release_fqid);
+
+static int qpool_cleanup(u32 qp)
+{
+ /*
+ * We query all FQDs starting from
+ * FQID 1 until we get an "invalid FQID" error, looking for non-OOS FQDs
+ * whose destination channel is the pool-channel being released.
+ * When a non-OOS FQD is found we attempt to clean it up
+ */
+ struct qman_fq fq = {
+ .fqid = QM_FQID_RANGE_START
+ };
+ int err;
+
+ do {
+ struct qm_mcr_queryfq_np np;
+
+ err = qman_query_fq_np(&fq, &np);
+ if (err)
+ /* FQID range exceeded, found no problems */
+ return 0;
+ if ((np.state & QM_MCR_NP_STATE_MASK) != QM_MCR_NP_STATE_OOS) {
+ struct qm_fqd fqd;
+
+ err = qman_query_fq(&fq, &fqd);
+ if (WARN_ON(err))
+ return 0;
+ if (qm_fqd_get_chan(&fqd) == qp) {
+ /* The channel is the FQ's target, clean it */
+ err = qman_shutdown_fq(fq.fqid);
+ if (err)
+ /*
+ * Couldn't shut down the FQ
+ * so the pool must be leaked
+ */
+ return err;
+ }
+ }
+ /* Move to the next FQID */
+ fq.fqid++;
+ } while (1);
+}
+
+int qman_release_pool(u32 qp)
+{
+ int ret;
+
+ ret = qpool_cleanup(qp);
+ if (ret) {
+ pr_debug("CHID %d leaked\n", qp);
+ return ret;
+ }
+
+ gen_pool_free(qm_qpalloc, qp | DPAA_GENALLOC_OFF, 1);
+ return 0;
+}
+EXPORT_SYMBOL(qman_release_pool);
+
+static int cgr_cleanup(u32 cgrid)
+{
+ /*
+ * query all FQDs starting from FQID 1 until we get an "invalid FQID"
+ * error, looking for non-OOS FQDs whose CGR is the CGR being released
+ */
+ struct qman_fq fq = {
+ .fqid = 1
+ };
+ int err;
+
+ do {
+ struct qm_mcr_queryfq_np np;
+
+ err = qman_query_fq_np(&fq, &np);
+ if (err)
+ /* FQID range exceeded, found no problems */
+ return 0;
+ if ((np.state & QM_MCR_NP_STATE_MASK) != QM_MCR_NP_STATE_OOS) {
+ struct qm_fqd fqd;
+
+ err = qman_query_fq(&fq, &fqd);
+ if (WARN_ON(err))
+ return 0;
+ if ((fqd.fq_ctrl & QM_FQCTRL_CGE) &&
+ fqd.cgid == cgrid) {
+ pr_err("CRGID 0x%x is being used by FQID 0x%x, CGR will be leaked\n",
+ cgrid, fq.fqid);
+ return -EIO;
+ }
+ }
+ /* Move to the next FQID */
+ fq.fqid++;
+ } while (1);
+}
+
+int qman_release_cgrid(u32 cgrid)
+{
+ int ret;
+
+ ret = cgr_cleanup(cgrid);
+ if (ret) {
+ pr_debug("CGRID %d leaked\n", cgrid);
+ return ret;
+ }
+
+ gen_pool_free(qm_cgralloc, cgrid | DPAA_GENALLOC_OFF, 1);
+ return 0;
+}
+EXPORT_SYMBOL(qman_release_cgrid);
diff --git a/drivers/soc/fsl/qbman/qman_ccsr.c b/drivers/soc/fsl/qbman/qman_ccsr.c
new file mode 100644
index 000000000000..0cace9e0077e
--- /dev/null
+++ b/drivers/soc/fsl/qbman/qman_ccsr.c
@@ -0,0 +1,808 @@
+/* Copyright 2008 - 2016 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "qman_priv.h"
+
+u16 qman_ip_rev;
+EXPORT_SYMBOL(qman_ip_rev);
+u16 qm_channel_pool1 = QMAN_CHANNEL_POOL1;
+EXPORT_SYMBOL(qm_channel_pool1);
+
+/* Register offsets */
+#define REG_QCSP_LIO_CFG(n) (0x0000 + ((n) * 0x10))
+#define REG_QCSP_IO_CFG(n) (0x0004 + ((n) * 0x10))
+#define REG_QCSP_DD_CFG(n) (0x000c + ((n) * 0x10))
+#define REG_DD_CFG 0x0200
+#define REG_DCP_CFG(n) (0x0300 + ((n) * 0x10))
+#define REG_DCP_DD_CFG(n) (0x0304 + ((n) * 0x10))
+#define REG_DCP_DLM_AVG(n) (0x030c + ((n) * 0x10))
+#define REG_PFDR_FPC 0x0400
+#define REG_PFDR_FP_HEAD 0x0404
+#define REG_PFDR_FP_TAIL 0x0408
+#define REG_PFDR_FP_LWIT 0x0410
+#define REG_PFDR_CFG 0x0414
+#define REG_SFDR_CFG 0x0500
+#define REG_SFDR_IN_USE 0x0504
+#define REG_WQ_CS_CFG(n) (0x0600 + ((n) * 0x04))
+#define REG_WQ_DEF_ENC_WQID 0x0630
+#define REG_WQ_SC_DD_CFG(n) (0x640 + ((n) * 0x04))
+#define REG_WQ_PC_DD_CFG(n) (0x680 + ((n) * 0x04))
+#define REG_WQ_DC0_DD_CFG(n) (0x6c0 + ((n) * 0x04))
+#define REG_WQ_DC1_DD_CFG(n) (0x700 + ((n) * 0x04))
+#define REG_WQ_DCn_DD_CFG(n) (0x6c0 + ((n) * 0x40)) /* n=2,3 */
+#define REG_CM_CFG 0x0800
+#define REG_ECSR 0x0a00
+#define REG_ECIR 0x0a04
+#define REG_EADR 0x0a08
+#define REG_ECIR2 0x0a0c
+#define REG_EDATA(n) (0x0a10 + ((n) * 0x04))
+#define REG_SBEC(n) (0x0a80 + ((n) * 0x04))
+#define REG_MCR 0x0b00
+#define REG_MCP(n) (0x0b04 + ((n) * 0x04))
+#define REG_MISC_CFG 0x0be0
+#define REG_HID_CFG 0x0bf0
+#define REG_IDLE_STAT 0x0bf4
+#define REG_IP_REV_1 0x0bf8
+#define REG_IP_REV_2 0x0bfc
+#define REG_FQD_BARE 0x0c00
+#define REG_PFDR_BARE 0x0c20
+#define REG_offset_BAR 0x0004 /* relative to REG_[FQD|PFDR]_BARE */
+#define REG_offset_AR 0x0010 /* relative to REG_[FQD|PFDR]_BARE */
+#define REG_QCSP_BARE 0x0c80
+#define REG_QCSP_BAR 0x0c84
+#define REG_CI_SCHED_CFG 0x0d00
+#define REG_SRCIDR 0x0d04
+#define REG_LIODNR 0x0d08
+#define REG_CI_RLM_AVG 0x0d14
+#define REG_ERR_ISR 0x0e00
+#define REG_ERR_IER 0x0e04
+#define REG_REV3_QCSP_LIO_CFG(n) (0x1000 + ((n) * 0x10))
+#define REG_REV3_QCSP_IO_CFG(n) (0x1004 + ((n) * 0x10))
+#define REG_REV3_QCSP_DD_CFG(n) (0x100c + ((n) * 0x10))
+
+/* Assists for QMAN_MCR */
+#define MCR_INIT_PFDR 0x01000000
+#define MCR_get_rslt(v) (u8)((v) >> 24)
+#define MCR_rslt_idle(r) (!(r) || ((r) >= 0xf0))
+#define MCR_rslt_ok(r) ((r) == 0xf0)
+#define MCR_rslt_eaccess(r) ((r) == 0xf8)
+#define MCR_rslt_inval(r) ((r) == 0xff)
+
+/*
+ * Corenet initiator settings. Stash request queues are 4-deep to match cores
+ * ability to snarf. Stash priority is 3, other priorities are 2.
+ */
+#define QM_CI_SCHED_CFG_SRCCIV 4
+#define QM_CI_SCHED_CFG_SRQ_W 3
+#define QM_CI_SCHED_CFG_RW_W 2
+#define QM_CI_SCHED_CFG_BMAN_W 2
+/* write SRCCIV enable */
+#define QM_CI_SCHED_CFG_SRCCIV_EN BIT(31)
+
+/* Follows WQ_CS_CFG0-5 */
+enum qm_wq_class {
+ qm_wq_portal = 0,
+ qm_wq_pool = 1,
+ qm_wq_fman0 = 2,
+ qm_wq_fman1 = 3,
+ qm_wq_caam = 4,
+ qm_wq_pme = 5,
+ qm_wq_first = qm_wq_portal,
+ qm_wq_last = qm_wq_pme
+};
+
+/* Follows FQD_[BARE|BAR|AR] and PFDR_[BARE|BAR|AR] */
+enum qm_memory {
+ qm_memory_fqd,
+ qm_memory_pfdr
+};
+
+/* Used by all error interrupt registers except 'inhibit' */
+#define QM_EIRQ_CIDE 0x20000000 /* Corenet Initiator Data Error */
+#define QM_EIRQ_CTDE 0x10000000 /* Corenet Target Data Error */
+#define QM_EIRQ_CITT 0x08000000 /* Corenet Invalid Target Transaction */
+#define QM_EIRQ_PLWI 0x04000000 /* PFDR Low Watermark */
+#define QM_EIRQ_MBEI 0x02000000 /* Multi-bit ECC Error */
+#define QM_EIRQ_SBEI 0x01000000 /* Single-bit ECC Error */
+#define QM_EIRQ_PEBI 0x00800000 /* PFDR Enqueues Blocked Interrupt */
+#define QM_EIRQ_IFSI 0x00020000 /* Invalid FQ Flow Control State */
+#define QM_EIRQ_ICVI 0x00010000 /* Invalid Command Verb */
+#define QM_EIRQ_IDDI 0x00000800 /* Invalid Dequeue (Direct-connect) */
+#define QM_EIRQ_IDFI 0x00000400 /* Invalid Dequeue FQ */
+#define QM_EIRQ_IDSI 0x00000200 /* Invalid Dequeue Source */
+#define QM_EIRQ_IDQI 0x00000100 /* Invalid Dequeue Queue */
+#define QM_EIRQ_IECE 0x00000010 /* Invalid Enqueue Configuration */
+#define QM_EIRQ_IEOI 0x00000008 /* Invalid Enqueue Overflow */
+#define QM_EIRQ_IESI 0x00000004 /* Invalid Enqueue State */
+#define QM_EIRQ_IECI 0x00000002 /* Invalid Enqueue Channel */
+#define QM_EIRQ_IEQI 0x00000001 /* Invalid Enqueue Queue */
+
+/* QMAN_ECIR valid error bit */
+#define PORTAL_ECSR_ERR (QM_EIRQ_IEQI | QM_EIRQ_IESI | QM_EIRQ_IEOI | \
+ QM_EIRQ_IDQI | QM_EIRQ_IDSI | QM_EIRQ_IDFI | \
+ QM_EIRQ_IDDI | QM_EIRQ_ICVI | QM_EIRQ_IFSI)
+#define FQID_ECSR_ERR (QM_EIRQ_IEQI | QM_EIRQ_IECI | QM_EIRQ_IESI | \
+ QM_EIRQ_IEOI | QM_EIRQ_IDQI | QM_EIRQ_IDFI | \
+ QM_EIRQ_IFSI)
+
+struct qm_ecir {
+ u32 info; /* res[30-31], ptyp[29], pnum[24-28], fqid[0-23] */
+};
+
+static bool qm_ecir_is_dcp(const struct qm_ecir *p)
+{
+ return p->info & BIT(29);
+}
+
+static int qm_ecir_get_pnum(const struct qm_ecir *p)
+{
+ return (p->info >> 24) & 0x1f;
+}
+
+static int qm_ecir_get_fqid(const struct qm_ecir *p)
+{
+ return p->info & (BIT(24) - 1);
+}
+
+struct qm_ecir2 {
+ u32 info; /* ptyp[31], res[10-30], pnum[0-9] */
+};
+
+static bool qm_ecir2_is_dcp(const struct qm_ecir2 *p)
+{
+ return p->info & BIT(31);
+}
+
+static int qm_ecir2_get_pnum(const struct qm_ecir2 *p)
+{
+ return p->info & (BIT(10) - 1);
+}
+
+struct qm_eadr {
+ u32 info; /* memid[24-27], eadr[0-11] */
+ /* v3: memid[24-28], eadr[0-15] */
+};
+
+static int qm_eadr_get_memid(const struct qm_eadr *p)
+{
+ return (p->info >> 24) & 0xf;
+}
+
+static int qm_eadr_get_eadr(const struct qm_eadr *p)
+{
+ return p->info & (BIT(12) - 1);
+}
+
+static int qm_eadr_v3_get_memid(const struct qm_eadr *p)
+{
+ return (p->info >> 24) & 0x1f;
+}
+
+static int qm_eadr_v3_get_eadr(const struct qm_eadr *p)
+{
+ return p->info & (BIT(16) - 1);
+}
+
+struct qman_hwerr_txt {
+ u32 mask;
+ const char *txt;
+};
+
+
+static const struct qman_hwerr_txt qman_hwerr_txts[] = {
+ { QM_EIRQ_CIDE, "Corenet Initiator Data Error" },
+ { QM_EIRQ_CTDE, "Corenet Target Data Error" },
+ { QM_EIRQ_CITT, "Corenet Invalid Target Transaction" },
+ { QM_EIRQ_PLWI, "PFDR Low Watermark" },
+ { QM_EIRQ_MBEI, "Multi-bit ECC Error" },
+ { QM_EIRQ_SBEI, "Single-bit ECC Error" },
+ { QM_EIRQ_PEBI, "PFDR Enqueues Blocked Interrupt" },
+ { QM_EIRQ_ICVI, "Invalid Command Verb" },
+ { QM_EIRQ_IFSI, "Invalid Flow Control State" },
+ { QM_EIRQ_IDDI, "Invalid Dequeue (Direct-connect)" },
+ { QM_EIRQ_IDFI, "Invalid Dequeue FQ" },
+ { QM_EIRQ_IDSI, "Invalid Dequeue Source" },
+ { QM_EIRQ_IDQI, "Invalid Dequeue Queue" },
+ { QM_EIRQ_IECE, "Invalid Enqueue Configuration" },
+ { QM_EIRQ_IEOI, "Invalid Enqueue Overflow" },
+ { QM_EIRQ_IESI, "Invalid Enqueue State" },
+ { QM_EIRQ_IECI, "Invalid Enqueue Channel" },
+ { QM_EIRQ_IEQI, "Invalid Enqueue Queue" },
+};
+
+struct qman_error_info_mdata {
+ u16 addr_mask;
+ u16 bits;
+ const char *txt;
+};
+
+static const struct qman_error_info_mdata error_mdata[] = {
+ { 0x01FF, 24, "FQD cache tag memory 0" },
+ { 0x01FF, 24, "FQD cache tag memory 1" },
+ { 0x01FF, 24, "FQD cache tag memory 2" },
+ { 0x01FF, 24, "FQD cache tag memory 3" },
+ { 0x0FFF, 512, "FQD cache memory" },
+ { 0x07FF, 128, "SFDR memory" },
+ { 0x01FF, 72, "WQ context memory" },
+ { 0x00FF, 240, "CGR memory" },
+ { 0x00FF, 302, "Internal Order Restoration List memory" },
+ { 0x01FF, 256, "SW portal ring memory" },
+};
+
+#define QMAN_ERRS_TO_DISABLE (QM_EIRQ_PLWI | QM_EIRQ_PEBI)
+
+/*
+ * TODO: unimplemented registers
+ *
+ * Keeping a list here of QMan registers I have not yet covered;
+ * QCSP_DD_IHRSR, QCSP_DD_IHRFR, QCSP_DD_HASR,
+ * DCP_DD_IHRSR, DCP_DD_IHRFR, DCP_DD_HASR, CM_CFG,
+ * QMAN_EECC, QMAN_SBET, QMAN_EINJ, QMAN_SBEC0-12
+ */
+
+/* Pointer to the start of the QMan's CCSR space */
+static u32 __iomem *qm_ccsr_start;
+/* A SDQCR mask comprising all the available/visible pool channels */
+static u32 qm_pools_sdqcr;
+
+static inline u32 qm_ccsr_in(u32 offset)
+{
+ return ioread32be(qm_ccsr_start + offset/4);
+}
+
+static inline void qm_ccsr_out(u32 offset, u32 val)
+{
+ iowrite32be(val, qm_ccsr_start + offset/4);
+}
+
+u32 qm_get_pools_sdqcr(void)
+{
+ return qm_pools_sdqcr;
+}
+
+enum qm_dc_portal {
+ qm_dc_portal_fman0 = 0,
+ qm_dc_portal_fman1 = 1
+};
+
+static void qm_set_dc(enum qm_dc_portal portal, int ed, u8 sernd)
+{
+ DPAA_ASSERT(!ed || portal == qm_dc_portal_fman0 ||
+ portal == qm_dc_portal_fman1);
+ if ((qman_ip_rev & 0xFF00) >= QMAN_REV30)
+ qm_ccsr_out(REG_DCP_CFG(portal),
+ (ed ? 0x1000 : 0) | (sernd & 0x3ff));
+ else
+ qm_ccsr_out(REG_DCP_CFG(portal),
+ (ed ? 0x100 : 0) | (sernd & 0x1f));
+}
+
+static void qm_set_wq_scheduling(enum qm_wq_class wq_class,
+ u8 cs_elev, u8 csw2, u8 csw3, u8 csw4,
+ u8 csw5, u8 csw6, u8 csw7)
+{
+ qm_ccsr_out(REG_WQ_CS_CFG(wq_class), ((cs_elev & 0xff) << 24) |
+ ((csw2 & 0x7) << 20) | ((csw3 & 0x7) << 16) |
+ ((csw4 & 0x7) << 12) | ((csw5 & 0x7) << 8) |
+ ((csw6 & 0x7) << 4) | (csw7 & 0x7));
+}
+
+static void qm_set_hid(void)
+{
+ qm_ccsr_out(REG_HID_CFG, 0);
+}
+
+static void qm_set_corenet_initiator(void)
+{
+ qm_ccsr_out(REG_CI_SCHED_CFG, QM_CI_SCHED_CFG_SRCCIV_EN |
+ (QM_CI_SCHED_CFG_SRCCIV << 24) |
+ (QM_CI_SCHED_CFG_SRQ_W << 8) |
+ (QM_CI_SCHED_CFG_RW_W << 4) |
+ QM_CI_SCHED_CFG_BMAN_W);
+}
+
+static void qm_get_version(u16 *id, u8 *major, u8 *minor)
+{
+ u32 v = qm_ccsr_in(REG_IP_REV_1);
+ *id = (v >> 16);
+ *major = (v >> 8) & 0xff;
+ *minor = v & 0xff;
+}
+
+#define PFDR_AR_EN BIT(31)
+static void qm_set_memory(enum qm_memory memory, u64 ba, u32 size)
+{
+ u32 offset = (memory == qm_memory_fqd) ? REG_FQD_BARE : REG_PFDR_BARE;
+ u32 exp = ilog2(size);
+
+ /* choke if size isn't within range */
+ DPAA_ASSERT((size >= 4096) && (size <= 1024*1024*1024) &&
+ is_power_of_2(size));
+ /* choke if 'ba' has lower-alignment than 'size' */
+ DPAA_ASSERT(!(ba & (size - 1)));
+ qm_ccsr_out(offset, upper_32_bits(ba));
+ qm_ccsr_out(offset + REG_offset_BAR, lower_32_bits(ba));
+ qm_ccsr_out(offset + REG_offset_AR, PFDR_AR_EN | (exp - 1));
+}
+
+static void qm_set_pfdr_threshold(u32 th, u8 k)
+{
+ qm_ccsr_out(REG_PFDR_FP_LWIT, th & 0xffffff);
+ qm_ccsr_out(REG_PFDR_CFG, k);
+}
+
+static void qm_set_sfdr_threshold(u16 th)
+{
+ qm_ccsr_out(REG_SFDR_CFG, th & 0x3ff);
+}
+
+static int qm_init_pfdr(struct device *dev, u32 pfdr_start, u32 num)
+{
+ u8 rslt = MCR_get_rslt(qm_ccsr_in(REG_MCR));
+
+ DPAA_ASSERT(pfdr_start && !(pfdr_start & 7) && !(num & 7) && num);
+ /* Make sure the command interface is 'idle' */
+ if (!MCR_rslt_idle(rslt)) {
+ dev_crit(dev, "QMAN_MCR isn't idle");
+ WARN_ON(1);
+ }
+
+ /* Write the MCR command params then the verb */
+ qm_ccsr_out(REG_MCP(0), pfdr_start);
+ /*
+ * TODO: remove this - it's a workaround for a model bug that is
+ * corrected in more recent versions. We use the workaround until
+ * everyone has upgraded.
+ */
+ qm_ccsr_out(REG_MCP(1), pfdr_start + num - 16);
+ dma_wmb();
+ qm_ccsr_out(REG_MCR, MCR_INIT_PFDR);
+ /* Poll for the result */
+ do {
+ rslt = MCR_get_rslt(qm_ccsr_in(REG_MCR));
+ } while (!MCR_rslt_idle(rslt));
+ if (MCR_rslt_ok(rslt))
+ return 0;
+ if (MCR_rslt_eaccess(rslt))
+ return -EACCES;
+ if (MCR_rslt_inval(rslt))
+ return -EINVAL;
+ dev_crit(dev, "Unexpected result from MCR_INIT_PFDR: %02x\n", rslt);
+ return -ENODEV;
+}
+
+/*
+ * Ideally we would use the DMA API to turn rmem->base into a DMA address
+ * (especially if iommu translations ever get involved). Unfortunately, the
+ * DMA API currently does not allow mapping anything that is not backed with
+ * a struct page.
+ */
+static dma_addr_t fqd_a, pfdr_a;
+static size_t fqd_sz, pfdr_sz;
+
+static int qman_fqd(struct reserved_mem *rmem)
+{
+ fqd_a = rmem->base;
+ fqd_sz = rmem->size;
+
+ WARN_ON(!(fqd_a && fqd_sz));
+
+ return 0;
+}
+RESERVEDMEM_OF_DECLARE(qman_fqd, "fsl,qman-fqd", qman_fqd);
+
+static int qman_pfdr(struct reserved_mem *rmem)
+{
+ pfdr_a = rmem->base;
+ pfdr_sz = rmem->size;
+
+ WARN_ON(!(pfdr_a && pfdr_sz));
+
+ return 0;
+}
+RESERVEDMEM_OF_DECLARE(qman_pfdr, "fsl,qman-pfdr", qman_pfdr);
+
+static unsigned int qm_get_fqid_maxcnt(void)
+{
+ return fqd_sz / 64;
+}
+
+/*
+ * Flush this memory range from data cache so that QMAN originated
+ * transactions for this memory region could be marked non-coherent.
+ */
+static int zero_priv_mem(struct device *dev, struct device_node *node,
+ phys_addr_t addr, size_t sz)
+{
+ /* map as cacheable, non-guarded */
+ void __iomem *tmpp = ioremap_prot(addr, sz, 0);
+
+ memset_io(tmpp, 0, sz);
+ flush_dcache_range((unsigned long)tmpp,
+ (unsigned long)tmpp + sz);
+ iounmap(tmpp);
+
+ return 0;
+}
+
+static void log_edata_bits(struct device *dev, u32 bit_count)
+{
+ u32 i, j, mask = 0xffffffff;
+
+ dev_warn(dev, "ErrInt, EDATA:\n");
+ i = bit_count / 32;
+ if (bit_count % 32) {
+ i++;
+ mask = ~(mask << bit_count % 32);
+ }
+ j = 16 - i;
+ dev_warn(dev, " 0x%08x\n", qm_ccsr_in(REG_EDATA(j)) & mask);
+ j++;
+ for (; j < 16; j++)
+ dev_warn(dev, " 0x%08x\n", qm_ccsr_in(REG_EDATA(j)));
+}
+
+static void log_additional_error_info(struct device *dev, u32 isr_val,
+ u32 ecsr_val)
+{
+ struct qm_ecir ecir_val;
+ struct qm_eadr eadr_val;
+ int memid;
+
+ ecir_val.info = qm_ccsr_in(REG_ECIR);
+ /* Is portal info valid */
+ if ((qman_ip_rev & 0xFF00) >= QMAN_REV30) {
+ struct qm_ecir2 ecir2_val;
+
+ ecir2_val.info = qm_ccsr_in(REG_ECIR2);
+ if (ecsr_val & PORTAL_ECSR_ERR) {
+ dev_warn(dev, "ErrInt: %s id %d\n",
+ qm_ecir2_is_dcp(&ecir2_val) ? "DCP" : "SWP",
+ qm_ecir2_get_pnum(&ecir2_val));
+ }
+ if (ecsr_val & (FQID_ECSR_ERR | QM_EIRQ_IECE))
+ dev_warn(dev, "ErrInt: ecir.fqid 0x%x\n",
+ qm_ecir_get_fqid(&ecir_val));
+
+ if (ecsr_val & (QM_EIRQ_SBEI|QM_EIRQ_MBEI)) {
+ eadr_val.info = qm_ccsr_in(REG_EADR);
+ memid = qm_eadr_v3_get_memid(&eadr_val);
+ dev_warn(dev, "ErrInt: EADR Memory: %s, 0x%x\n",
+ error_mdata[memid].txt,
+ error_mdata[memid].addr_mask
+ & qm_eadr_v3_get_eadr(&eadr_val));
+ log_edata_bits(dev, error_mdata[memid].bits);
+ }
+ } else {
+ if (ecsr_val & PORTAL_ECSR_ERR) {
+ dev_warn(dev, "ErrInt: %s id %d\n",
+ qm_ecir_is_dcp(&ecir_val) ? "DCP" : "SWP",
+ qm_ecir_get_pnum(&ecir_val));
+ }
+ if (ecsr_val & FQID_ECSR_ERR)
+ dev_warn(dev, "ErrInt: ecir.fqid 0x%x\n",
+ qm_ecir_get_fqid(&ecir_val));
+
+ if (ecsr_val & (QM_EIRQ_SBEI|QM_EIRQ_MBEI)) {
+ eadr_val.info = qm_ccsr_in(REG_EADR);
+ memid = qm_eadr_get_memid(&eadr_val);
+ dev_warn(dev, "ErrInt: EADR Memory: %s, 0x%x\n",
+ error_mdata[memid].txt,
+ error_mdata[memid].addr_mask
+ & qm_eadr_get_eadr(&eadr_val));
+ log_edata_bits(dev, error_mdata[memid].bits);
+ }
+ }
+}
+
+static irqreturn_t qman_isr(int irq, void *ptr)
+{
+ u32 isr_val, ier_val, ecsr_val, isr_mask, i;
+ struct device *dev = ptr;
+
+ ier_val = qm_ccsr_in(REG_ERR_IER);
+ isr_val = qm_ccsr_in(REG_ERR_ISR);
+ ecsr_val = qm_ccsr_in(REG_ECSR);
+ isr_mask = isr_val & ier_val;
+
+ if (!isr_mask)
+ return IRQ_NONE;
+
+ for (i = 0; i < ARRAY_SIZE(qman_hwerr_txts); i++) {
+ if (qman_hwerr_txts[i].mask & isr_mask) {
+ dev_err_ratelimited(dev, "ErrInt: %s\n",
+ qman_hwerr_txts[i].txt);
+ if (qman_hwerr_txts[i].mask & ecsr_val) {
+ log_additional_error_info(dev, isr_mask,
+ ecsr_val);
+ /* Re-arm error capture registers */
+ qm_ccsr_out(REG_ECSR, ecsr_val);
+ }
+ if (qman_hwerr_txts[i].mask & QMAN_ERRS_TO_DISABLE) {
+ dev_dbg(dev, "Disabling error 0x%x\n",
+ qman_hwerr_txts[i].mask);
+ ier_val &= ~qman_hwerr_txts[i].mask;
+ qm_ccsr_out(REG_ERR_IER, ier_val);
+ }
+ }
+ }
+ qm_ccsr_out(REG_ERR_ISR, isr_val);
+
+ return IRQ_HANDLED;
+}
+
+static int qman_init_ccsr(struct device *dev)
+{
+ int i, err;
+
+ /* FQD memory */
+ qm_set_memory(qm_memory_fqd, fqd_a, fqd_sz);
+ /* PFDR memory */
+ qm_set_memory(qm_memory_pfdr, pfdr_a, pfdr_sz);
+ err = qm_init_pfdr(dev, 8, pfdr_sz / 64 - 8);
+ if (err)
+ return err;
+ /* thresholds */
+ qm_set_pfdr_threshold(512, 64);
+ qm_set_sfdr_threshold(128);
+ /* clear stale PEBI bit from interrupt status register */
+ qm_ccsr_out(REG_ERR_ISR, QM_EIRQ_PEBI);
+ /* corenet initiator settings */
+ qm_set_corenet_initiator();
+ /* HID settings */
+ qm_set_hid();
+ /* Set scheduling weights to defaults */
+ for (i = qm_wq_first; i <= qm_wq_last; i++)
+ qm_set_wq_scheduling(i, 0, 0, 0, 0, 0, 0, 0);
+ /* We are not prepared to accept ERNs for hardware enqueues */
+ qm_set_dc(qm_dc_portal_fman0, 1, 0);
+ qm_set_dc(qm_dc_portal_fman1, 1, 0);
+ return 0;
+}
+
+#define LIO_CFG_LIODN_MASK 0x0fff0000
+void qman_liodn_fixup(u16 channel)
+{
+ static int done;
+ static u32 liodn_offset;
+ u32 before, after;
+ int idx = channel - QM_CHANNEL_SWPORTAL0;
+
+ if ((qman_ip_rev & 0xFF00) >= QMAN_REV30)
+ before = qm_ccsr_in(REG_REV3_QCSP_LIO_CFG(idx));
+ else
+ before = qm_ccsr_in(REG_QCSP_LIO_CFG(idx));
+ if (!done) {
+ liodn_offset = before & LIO_CFG_LIODN_MASK;
+ done = 1;
+ return;
+ }
+ after = (before & (~LIO_CFG_LIODN_MASK)) | liodn_offset;
+ if ((qman_ip_rev & 0xFF00) >= QMAN_REV30)
+ qm_ccsr_out(REG_REV3_QCSP_LIO_CFG(idx), after);
+ else
+ qm_ccsr_out(REG_QCSP_LIO_CFG(idx), after);
+}
+
+#define IO_CFG_SDEST_MASK 0x00ff0000
+void qman_set_sdest(u16 channel, unsigned int cpu_idx)
+{
+ int idx = channel - QM_CHANNEL_SWPORTAL0;
+ u32 before, after;
+
+ if ((qman_ip_rev & 0xFF00) >= QMAN_REV30) {
+ before = qm_ccsr_in(REG_REV3_QCSP_IO_CFG(idx));
+ /* Each pair of vcpu share the same SRQ(SDEST) */
+ cpu_idx /= 2;
+ after = (before & (~IO_CFG_SDEST_MASK)) | (cpu_idx << 16);
+ qm_ccsr_out(REG_REV3_QCSP_IO_CFG(idx), after);
+ } else {
+ before = qm_ccsr_in(REG_QCSP_IO_CFG(idx));
+ after = (before & (~IO_CFG_SDEST_MASK)) | (cpu_idx << 16);
+ qm_ccsr_out(REG_QCSP_IO_CFG(idx), after);
+ }
+}
+
+static int qman_resource_init(struct device *dev)
+{
+ int pool_chan_num, cgrid_num;
+ int ret, i;
+
+ switch (qman_ip_rev >> 8) {
+ case 1:
+ pool_chan_num = 15;
+ cgrid_num = 256;
+ break;
+ case 2:
+ pool_chan_num = 3;
+ cgrid_num = 64;
+ break;
+ case 3:
+ pool_chan_num = 15;
+ cgrid_num = 256;
+ break;
+ default:
+ return -ENODEV;
+ }
+
+ ret = gen_pool_add(qm_qpalloc, qm_channel_pool1 | DPAA_GENALLOC_OFF,
+ pool_chan_num, -1);
+ if (ret) {
+ dev_err(dev, "Failed to seed pool channels (%d)\n", ret);
+ return ret;
+ }
+
+ ret = gen_pool_add(qm_cgralloc, DPAA_GENALLOC_OFF, cgrid_num, -1);
+ if (ret) {
+ dev_err(dev, "Failed to seed CGRID range (%d)\n", ret);
+ return ret;
+ }
+
+ /* parse pool channels into the SDQCR mask */
+ for (i = 0; i < cgrid_num; i++)
+ qm_pools_sdqcr |= QM_SDQCR_CHANNELS_POOL_CONV(i);
+
+ ret = gen_pool_add(qm_fqalloc, QM_FQID_RANGE_START | DPAA_GENALLOC_OFF,
+ qm_get_fqid_maxcnt() - QM_FQID_RANGE_START, -1);
+ if (ret) {
+ dev_err(dev, "Failed to seed FQID range (%d)\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int fsl_qman_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *node = dev->of_node;
+ struct resource *res;
+ int ret, err_irq;
+ u16 id;
+ u8 major, minor;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(dev, "Can't get %s property 'IORESOURCE_MEM'\n",
+ node->full_name);
+ return -ENXIO;
+ }
+ qm_ccsr_start = devm_ioremap(dev, res->start, resource_size(res));
+ if (!qm_ccsr_start)
+ return -ENXIO;
+
+ qm_get_version(&id, &major, &minor);
+ if (major == 1 && minor == 0) {
+ dev_err(dev, "Rev1.0 on P4080 rev1 is not supported!\n");
+ return -ENODEV;
+ } else if (major == 1 && minor == 1)
+ qman_ip_rev = QMAN_REV11;
+ else if (major == 1 && minor == 2)
+ qman_ip_rev = QMAN_REV12;
+ else if (major == 2 && minor == 0)
+ qman_ip_rev = QMAN_REV20;
+ else if (major == 3 && minor == 0)
+ qman_ip_rev = QMAN_REV30;
+ else if (major == 3 && minor == 1)
+ qman_ip_rev = QMAN_REV31;
+ else {
+ dev_err(dev, "Unknown QMan version\n");
+ return -ENODEV;
+ }
+
+ if ((qman_ip_rev & 0xff00) >= QMAN_REV30)
+ qm_channel_pool1 = QMAN_CHANNEL_POOL1_REV3;
+
+ ret = zero_priv_mem(dev, node, fqd_a, fqd_sz);
+ WARN_ON(ret);
+ if (ret)
+ return -ENODEV;
+
+ ret = qman_init_ccsr(dev);
+ if (ret) {
+ dev_err(dev, "CCSR setup failed\n");
+ return ret;
+ }
+
+ err_irq = platform_get_irq(pdev, 0);
+ if (err_irq <= 0) {
+ dev_info(dev, "Can't get %s property 'interrupts'\n",
+ node->full_name);
+ return -ENODEV;
+ }
+ ret = devm_request_irq(dev, err_irq, qman_isr, IRQF_SHARED, "qman-err",
+ dev);
+ if (ret) {
+ dev_err(dev, "devm_request_irq() failed %d for '%s'\n",
+ ret, node->full_name);
+ return ret;
+ }
+
+ /*
+ * Write-to-clear any stale bits, (eg. starvation being asserted prior
+ * to resource allocation during driver init).
+ */
+ qm_ccsr_out(REG_ERR_ISR, 0xffffffff);
+ /* Enable Error Interrupts */
+ qm_ccsr_out(REG_ERR_IER, 0xffffffff);
+
+ qm_fqalloc = devm_gen_pool_create(dev, 0, -1, "qman-fqalloc");
+ if (IS_ERR(qm_fqalloc)) {
+ ret = PTR_ERR(qm_fqalloc);
+ dev_err(dev, "qman-fqalloc pool init failed (%d)\n", ret);
+ return ret;
+ }
+
+ qm_qpalloc = devm_gen_pool_create(dev, 0, -1, "qman-qpalloc");
+ if (IS_ERR(qm_qpalloc)) {
+ ret = PTR_ERR(qm_qpalloc);
+ dev_err(dev, "qman-qpalloc pool init failed (%d)\n", ret);
+ return ret;
+ }
+
+ qm_cgralloc = devm_gen_pool_create(dev, 0, -1, "qman-cgralloc");
+ if (IS_ERR(qm_cgralloc)) {
+ ret = PTR_ERR(qm_cgralloc);
+ dev_err(dev, "qman-cgralloc pool init failed (%d)\n", ret);
+ return ret;
+ }
+
+ ret = qman_resource_init(dev);
+ if (ret)
+ return ret;
+
+ ret = qman_alloc_fq_table(qm_get_fqid_maxcnt());
+ if (ret)
+ return ret;
+
+ ret = qman_wq_alloc();
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static const struct of_device_id fsl_qman_ids[] = {
+ {
+ .compatible = "fsl,qman",
+ },
+ {}
+};
+
+static struct platform_driver fsl_qman_driver = {
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .of_match_table = fsl_qman_ids,
+ .suppress_bind_attrs = true,
+ },
+ .probe = fsl_qman_probe,
+};
+
+builtin_platform_driver(fsl_qman_driver);
diff --git a/drivers/soc/fsl/qbman/qman_portal.c b/drivers/soc/fsl/qbman/qman_portal.c
new file mode 100644
index 000000000000..148614388fca
--- /dev/null
+++ b/drivers/soc/fsl/qbman/qman_portal.c
@@ -0,0 +1,355 @@
+/* Copyright 2008 - 2016 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "qman_priv.h"
+
+/* Enable portal interupts (as opposed to polling mode) */
+#define CONFIG_FSL_DPA_PIRQ_SLOW 1
+#define CONFIG_FSL_DPA_PIRQ_FAST 1
+
+static struct cpumask portal_cpus;
+/* protect qman global registers and global data shared among portals */
+static DEFINE_SPINLOCK(qman_lock);
+
+static void portal_set_cpu(struct qm_portal_config *pcfg, int cpu)
+{
+#ifdef CONFIG_FSL_PAMU
+ struct device *dev = pcfg->dev;
+ int window_count = 1;
+ struct iommu_domain_geometry geom_attr;
+ struct pamu_stash_attribute stash_attr;
+ int ret;
+
+ pcfg->iommu_domain = iommu_domain_alloc(&platform_bus_type);
+ if (!pcfg->iommu_domain) {
+ dev_err(dev, "%s(): iommu_domain_alloc() failed", __func__);
+ goto no_iommu;
+ }
+ geom_attr.aperture_start = 0;
+ geom_attr.aperture_end =
+ ((dma_addr_t)1 << min(8 * sizeof(dma_addr_t), (size_t)36)) - 1;
+ geom_attr.force_aperture = true;
+ ret = iommu_domain_set_attr(pcfg->iommu_domain, DOMAIN_ATTR_GEOMETRY,
+ &geom_attr);
+ if (ret < 0) {
+ dev_err(dev, "%s(): iommu_domain_set_attr() = %d", __func__,
+ ret);
+ goto out_domain_free;
+ }
+ ret = iommu_domain_set_attr(pcfg->iommu_domain, DOMAIN_ATTR_WINDOWS,
+ &window_count);
+ if (ret < 0) {
+ dev_err(dev, "%s(): iommu_domain_set_attr() = %d", __func__,
+ ret);
+ goto out_domain_free;
+ }
+ stash_attr.cpu = cpu;
+ stash_attr.cache = PAMU_ATTR_CACHE_L1;
+ ret = iommu_domain_set_attr(pcfg->iommu_domain,
+ DOMAIN_ATTR_FSL_PAMU_STASH,
+ &stash_attr);
+ if (ret < 0) {
+ dev_err(dev, "%s(): iommu_domain_set_attr() = %d",
+ __func__, ret);
+ goto out_domain_free;
+ }
+ ret = iommu_domain_window_enable(pcfg->iommu_domain, 0, 0, 1ULL << 36,
+ IOMMU_READ | IOMMU_WRITE);
+ if (ret < 0) {
+ dev_err(dev, "%s(): iommu_domain_window_enable() = %d",
+ __func__, ret);
+ goto out_domain_free;
+ }
+ ret = iommu_attach_device(pcfg->iommu_domain, dev);
+ if (ret < 0) {
+ dev_err(dev, "%s(): iommu_device_attach() = %d", __func__,
+ ret);
+ goto out_domain_free;
+ }
+ ret = iommu_domain_set_attr(pcfg->iommu_domain,
+ DOMAIN_ATTR_FSL_PAMU_ENABLE,
+ &window_count);
+ if (ret < 0) {
+ dev_err(dev, "%s(): iommu_domain_set_attr() = %d", __func__,
+ ret);
+ goto out_detach_device;
+ }
+
+no_iommu:
+#endif
+ qman_set_sdest(pcfg->channel, cpu);
+
+ return;
+
+#ifdef CONFIG_FSL_PAMU
+out_detach_device:
+ iommu_detach_device(pcfg->iommu_domain, NULL);
+out_domain_free:
+ iommu_domain_free(pcfg->iommu_domain);
+ pcfg->iommu_domain = NULL;
+#endif
+}
+
+static struct qman_portal *init_pcfg(struct qm_portal_config *pcfg)
+{
+ struct qman_portal *p;
+ u32 irq_sources = 0;
+
+ /* We need the same LIODN offset for all portals */
+ qman_liodn_fixup(pcfg->channel);
+
+ pcfg->iommu_domain = NULL;
+ portal_set_cpu(pcfg, pcfg->cpu);
+
+ p = qman_create_affine_portal(pcfg, NULL);
+ if (!p) {
+ dev_crit(pcfg->dev, "%s: Portal failure on cpu %d\n",
+ __func__, pcfg->cpu);
+ return NULL;
+ }
+
+ /* Determine what should be interrupt-vs-poll driven */
+#ifdef CONFIG_FSL_DPA_PIRQ_SLOW
+ irq_sources |= QM_PIRQ_EQCI | QM_PIRQ_EQRI | QM_PIRQ_MRI |
+ QM_PIRQ_CSCI;
+#endif
+#ifdef CONFIG_FSL_DPA_PIRQ_FAST
+ irq_sources |= QM_PIRQ_DQRI;
+#endif
+ qman_p_irqsource_add(p, irq_sources);
+
+ spin_lock(&qman_lock);
+ if (cpumask_equal(&portal_cpus, cpu_possible_mask)) {
+ /* all assigned portals are initialized now */
+ qman_init_cgr_all();
+ }
+ spin_unlock(&qman_lock);
+
+ dev_info(pcfg->dev, "Portal initialised, cpu %d\n", pcfg->cpu);
+
+ return p;
+}
+
+static void qman_portal_update_sdest(const struct qm_portal_config *pcfg,
+ unsigned int cpu)
+{
+#ifdef CONFIG_FSL_PAMU /* TODO */
+ struct pamu_stash_attribute stash_attr;
+ int ret;
+
+ if (pcfg->iommu_domain) {
+ stash_attr.cpu = cpu;
+ stash_attr.cache = PAMU_ATTR_CACHE_L1;
+ ret = iommu_domain_set_attr(pcfg->iommu_domain,
+ DOMAIN_ATTR_FSL_PAMU_STASH, &stash_attr);
+ if (ret < 0) {
+ dev_err(pcfg->dev,
+ "Failed to update pamu stash setting\n");
+ return;
+ }
+ }
+#endif
+ qman_set_sdest(pcfg->channel, cpu);
+}
+
+static void qman_offline_cpu(unsigned int cpu)
+{
+ struct qman_portal *p;
+ const struct qm_portal_config *pcfg;
+
+ p = affine_portals[cpu];
+ if (p) {
+ pcfg = qman_get_qm_portal_config(p);
+ if (pcfg) {
+ irq_set_affinity(pcfg->irq, cpumask_of(0));
+ qman_portal_update_sdest(pcfg, 0);
+ }
+ }
+}
+
+static void qman_online_cpu(unsigned int cpu)
+{
+ struct qman_portal *p;
+ const struct qm_portal_config *pcfg;
+
+ p = affine_portals[cpu];
+ if (p) {
+ pcfg = qman_get_qm_portal_config(p);
+ if (pcfg) {
+ irq_set_affinity(pcfg->irq, cpumask_of(cpu));
+ qman_portal_update_sdest(pcfg, cpu);
+ }
+ }
+}
+
+static int qman_hotplug_cpu_callback(struct notifier_block *nfb,
+ unsigned long action, void *hcpu)
+{
+ unsigned int cpu = (unsigned long)hcpu;
+
+ switch (action) {
+ case CPU_ONLINE:
+ case CPU_ONLINE_FROZEN:
+ qman_online_cpu(cpu);
+ break;
+ case CPU_DOWN_PREPARE:
+ case CPU_DOWN_PREPARE_FROZEN:
+ qman_offline_cpu(cpu);
+ default:
+ break;
+ }
+ return NOTIFY_OK;
+}
+
+static struct notifier_block qman_hotplug_cpu_notifier = {
+ .notifier_call = qman_hotplug_cpu_callback,
+};
+
+static int qman_portal_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *node = dev->of_node;
+ struct qm_portal_config *pcfg;
+ struct resource *addr_phys[2];
+ const u32 *channel;
+ void __iomem *va;
+ int irq, len, cpu;
+
+ pcfg = devm_kmalloc(dev, sizeof(*pcfg), GFP_KERNEL);
+ if (!pcfg)
+ return -ENOMEM;
+
+ pcfg->dev = dev;
+
+ addr_phys[0] = platform_get_resource(pdev, IORESOURCE_MEM,
+ DPAA_PORTAL_CE);
+ if (!addr_phys[0]) {
+ dev_err(dev, "Can't get %s property 'reg::CE'\n",
+ node->full_name);
+ return -ENXIO;
+ }
+
+ addr_phys[1] = platform_get_resource(pdev, IORESOURCE_MEM,
+ DPAA_PORTAL_CI);
+ if (!addr_phys[1]) {
+ dev_err(dev, "Can't get %s property 'reg::CI'\n",
+ node->full_name);
+ return -ENXIO;
+ }
+
+ channel = of_get_property(node, "cell-index", &len);
+ if (!channel || (len != 4)) {
+ dev_err(dev, "Can't get %s property 'cell-index'\n",
+ node->full_name);
+ return -ENXIO;
+ }
+ pcfg->channel = *channel;
+ pcfg->cpu = -1;
+ irq = platform_get_irq(pdev, 0);
+ if (irq <= 0) {
+ dev_err(dev, "Can't get %s IRQ\n", node->full_name);
+ return -ENXIO;
+ }
+ pcfg->irq = irq;
+
+ va = ioremap_prot(addr_phys[0]->start, resource_size(addr_phys[0]), 0);
+ if (!va)
+ goto err_ioremap1;
+
+ pcfg->addr_virt[DPAA_PORTAL_CE] = va;
+
+ va = ioremap_prot(addr_phys[1]->start, resource_size(addr_phys[1]),
+ _PAGE_GUARDED | _PAGE_NO_CACHE);
+ if (!va)
+ goto err_ioremap2;
+
+ pcfg->addr_virt[DPAA_PORTAL_CI] = va;
+
+ pcfg->pools = qm_get_pools_sdqcr();
+
+ spin_lock(&qman_lock);
+ cpu = cpumask_next_zero(-1, &portal_cpus);
+ if (cpu >= nr_cpu_ids) {
+ /* unassigned portal, skip init */
+ spin_unlock(&qman_lock);
+ return 0;
+ }
+
+ cpumask_set_cpu(cpu, &portal_cpus);
+ spin_unlock(&qman_lock);
+ pcfg->cpu = cpu;
+
+ if (!init_pcfg(pcfg))
+ goto err_ioremap2;
+
+ /* clear irq affinity if assigned cpu is offline */
+ if (!cpu_online(cpu))
+ qman_offline_cpu(cpu);
+
+ return 0;
+
+err_ioremap2:
+ iounmap(pcfg->addr_virt[DPAA_PORTAL_CE]);
+err_ioremap1:
+ dev_err(dev, "ioremap failed\n");
+ return -ENXIO;
+}
+
+static const struct of_device_id qman_portal_ids[] = {
+ {
+ .compatible = "fsl,qman-portal",
+ },
+ {}
+};
+MODULE_DEVICE_TABLE(of, qman_portal_ids);
+
+static struct platform_driver qman_portal_driver = {
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .of_match_table = qman_portal_ids,
+ },
+ .probe = qman_portal_probe,
+};
+
+static int __init qman_portal_driver_register(struct platform_driver *drv)
+{
+ int ret;
+
+ ret = platform_driver_register(drv);
+ if (ret < 0)
+ return ret;
+
+ register_hotcpu_notifier(&qman_hotplug_cpu_notifier);
+
+ return 0;
+}
+
+module_driver(qman_portal_driver,
+ qman_portal_driver_register, platform_driver_unregister);
diff --git a/drivers/soc/fsl/qbman/qman_priv.h b/drivers/soc/fsl/qbman/qman_priv.h
new file mode 100644
index 000000000000..5cf821e623a9
--- /dev/null
+++ b/drivers/soc/fsl/qbman/qman_priv.h
@@ -0,0 +1,371 @@
+/* Copyright 2008 - 2016 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "dpaa_sys.h"
+
+#include <soc/fsl/qman.h>
+#include <linux/iommu.h>
+
+#if defined(CONFIG_FSL_PAMU)
+#include <asm/fsl_pamu_stash.h>
+#endif
+
+struct qm_mcr_querywq {
+ u8 verb;
+ u8 result;
+ u16 channel_wq; /* ignores wq (3 lsbits): _res[0-2] */
+ u8 __reserved[28];
+ u32 wq_len[8];
+} __packed;
+
+static inline u16 qm_mcr_querywq_get_chan(const struct qm_mcr_querywq *wq)
+{
+ return wq->channel_wq >> 3;
+}
+
+struct __qm_mcr_querycongestion {
+ u32 state[8];
+};
+
+/* "Query Congestion Group State" */
+struct qm_mcr_querycongestion {
+ u8 verb;
+ u8 result;
+ u8 __reserved[30];
+ /* Access this struct using qman_cgrs_get() */
+ struct __qm_mcr_querycongestion state;
+} __packed;
+
+/* "Query CGR" */
+struct qm_mcr_querycgr {
+ u8 verb;
+ u8 result;
+ u16 __reserved1;
+ struct __qm_mc_cgr cgr; /* CGR fields */
+ u8 __reserved2[6];
+ u8 i_bcnt_hi; /* high 8-bits of 40-bit "Instant" */
+ u32 i_bcnt_lo; /* low 32-bits of 40-bit */
+ u8 __reserved3[3];
+ u8 a_bcnt_hi; /* high 8-bits of 40-bit "Average" */
+ u32 a_bcnt_lo; /* low 32-bits of 40-bit */
+ u32 cscn_targ_swp[4];
+} __packed;
+
+static inline u64 qm_mcr_querycgr_i_get64(const struct qm_mcr_querycgr *q)
+{
+ return ((u64)q->i_bcnt_hi << 32) | (u64)q->i_bcnt_lo;
+}
+static inline u64 qm_mcr_querycgr_a_get64(const struct qm_mcr_querycgr *q)
+{
+ return ((u64)q->a_bcnt_hi << 32) | (u64)q->a_bcnt_lo;
+}
+
+/* "Query FQ Non-Programmable Fields" */
+struct qm_mcc_queryfq_np {
+ u8 _ncw_verb;
+ u8 __reserved1[3];
+ u32 fqid; /* 24-bit */
+ u8 __reserved2[56];
+} __packed;
+
+struct qm_mcr_queryfq_np {
+ u8 verb;
+ u8 result;
+ u8 __reserved1;
+ u8 state; /* QM_MCR_NP_STATE_*** */
+ u32 fqd_link; /* 24-bit, _res2[24-31] */
+ u16 odp_seq; /* 14-bit, _res3[14-15] */
+ u16 orp_nesn; /* 14-bit, _res4[14-15] */
+ u16 orp_ea_hseq; /* 15-bit, _res5[15] */
+ u16 orp_ea_tseq; /* 15-bit, _res6[15] */
+ u32 orp_ea_hptr; /* 24-bit, _res7[24-31] */
+ u32 orp_ea_tptr; /* 24-bit, _res8[24-31] */
+ u32 pfdr_hptr; /* 24-bit, _res9[24-31] */
+ u32 pfdr_tptr; /* 24-bit, _res10[24-31] */
+ u8 __reserved2[5];
+ u8 is; /* 1-bit, _res12[1-7] */
+ u16 ics_surp;
+ u32 byte_cnt;
+ u32 frm_cnt; /* 24-bit, _res13[24-31] */
+ u32 __reserved3;
+ u16 ra1_sfdr; /* QM_MCR_NP_RA1_*** */
+ u16 ra2_sfdr; /* QM_MCR_NP_RA2_*** */
+ u16 __reserved4;
+ u16 od1_sfdr; /* QM_MCR_NP_OD1_*** */
+ u16 od2_sfdr; /* QM_MCR_NP_OD2_*** */
+ u16 od3_sfdr; /* QM_MCR_NP_OD3_*** */
+} __packed;
+
+#define QM_MCR_NP_STATE_FE 0x10
+#define QM_MCR_NP_STATE_R 0x08
+#define QM_MCR_NP_STATE_MASK 0x07 /* Reads FQD::STATE; */
+#define QM_MCR_NP_STATE_OOS 0x00
+#define QM_MCR_NP_STATE_RETIRED 0x01
+#define QM_MCR_NP_STATE_TEN_SCHED 0x02
+#define QM_MCR_NP_STATE_TRU_SCHED 0x03
+#define QM_MCR_NP_STATE_PARKED 0x04
+#define QM_MCR_NP_STATE_ACTIVE 0x05
+#define QM_MCR_NP_PTR_MASK 0x07ff /* for RA[12] & OD[123] */
+#define QM_MCR_NP_RA1_NRA(v) (((v) >> 14) & 0x3) /* FQD::NRA */
+#define QM_MCR_NP_RA2_IT(v) (((v) >> 14) & 0x1) /* FQD::IT */
+#define QM_MCR_NP_OD1_NOD(v) (((v) >> 14) & 0x3) /* FQD::NOD */
+#define QM_MCR_NP_OD3_NPC(v) (((v) >> 14) & 0x3) /* FQD::NPC */
+
+enum qm_mcr_queryfq_np_masks {
+ qm_mcr_fqd_link_mask = BIT(24)-1,
+ qm_mcr_odp_seq_mask = BIT(14)-1,
+ qm_mcr_orp_nesn_mask = BIT(14)-1,
+ qm_mcr_orp_ea_hseq_mask = BIT(15)-1,
+ qm_mcr_orp_ea_tseq_mask = BIT(15)-1,
+ qm_mcr_orp_ea_hptr_mask = BIT(24)-1,
+ qm_mcr_orp_ea_tptr_mask = BIT(24)-1,
+ qm_mcr_pfdr_hptr_mask = BIT(24)-1,
+ qm_mcr_pfdr_tptr_mask = BIT(24)-1,
+ qm_mcr_is_mask = BIT(1)-1,
+ qm_mcr_frm_cnt_mask = BIT(24)-1,
+};
+#define qm_mcr_np_get(np, field) \
+ ((np)->field & (qm_mcr_##field##_mask))
+
+/* Congestion Groups */
+
+/*
+ * This wrapper represents a bit-array for the state of the 256 QMan congestion
+ * groups. Is also used as a *mask* for congestion groups, eg. so we ignore
+ * those that don't concern us. We harness the structure and accessor details
+ * already used in the management command to query congestion groups.
+ */
+#define CGR_BITS_PER_WORD 5
+#define CGR_WORD(x) ((x) >> CGR_BITS_PER_WORD)
+#define CGR_BIT(x) (BIT(31) >> ((x) & 0x1f))
+#define CGR_NUM (sizeof(struct __qm_mcr_querycongestion) << 3)
+
+struct qman_cgrs {
+ struct __qm_mcr_querycongestion q;
+};
+
+static inline void qman_cgrs_init(struct qman_cgrs *c)
+{
+ memset(c, 0, sizeof(*c));
+}
+
+static inline void qman_cgrs_fill(struct qman_cgrs *c)
+{
+ memset(c, 0xff, sizeof(*c));
+}
+
+static inline int qman_cgrs_get(struct qman_cgrs *c, u8 cgr)
+{
+ return c->q.state[CGR_WORD(cgr)] & CGR_BIT(cgr);
+}
+
+static inline void qman_cgrs_cp(struct qman_cgrs *dest,
+ const struct qman_cgrs *src)
+{
+ *dest = *src;
+}
+
+static inline void qman_cgrs_and(struct qman_cgrs *dest,
+ const struct qman_cgrs *a, const struct qman_cgrs *b)
+{
+ int ret;
+ u32 *_d = dest->q.state;
+ const u32 *_a = a->q.state;
+ const u32 *_b = b->q.state;
+
+ for (ret = 0; ret < 8; ret++)
+ *_d++ = *_a++ & *_b++;
+}
+
+static inline void qman_cgrs_xor(struct qman_cgrs *dest,
+ const struct qman_cgrs *a, const struct qman_cgrs *b)
+{
+ int ret;
+ u32 *_d = dest->q.state;
+ const u32 *_a = a->q.state;
+ const u32 *_b = b->q.state;
+
+ for (ret = 0; ret < 8; ret++)
+ *_d++ = *_a++ ^ *_b++;
+}
+
+void qman_init_cgr_all(void);
+
+struct qm_portal_config {
+ /*
+ * Corenet portal addresses;
+ * [0]==cache-enabled, [1]==cache-inhibited.
+ */
+ void __iomem *addr_virt[2];
+ struct device *dev;
+ struct iommu_domain *iommu_domain;
+ /* Allow these to be joined in lists */
+ struct list_head list;
+ /* User-visible portal configuration settings */
+ /* portal is affined to this cpu */
+ int cpu;
+ /* portal interrupt line */
+ int irq;
+ /*
+ * the portal's dedicated channel id, used initialising
+ * frame queues to target this portal when scheduled
+ */
+ u16 channel;
+ /*
+ * mask of pool channels this portal has dequeue access to
+ * (using QM_SDQCR_CHANNELS_POOL(n) for the bitmask)
+ */
+ u32 pools;
+};
+
+/* Revision info (for errata and feature handling) */
+#define QMAN_REV11 0x0101
+#define QMAN_REV12 0x0102
+#define QMAN_REV20 0x0200
+#define QMAN_REV30 0x0300
+#define QMAN_REV31 0x0301
+extern u16 qman_ip_rev; /* 0 if uninitialised, otherwise QMAN_REVx */
+
+#define QM_FQID_RANGE_START 1 /* FQID 0 reserved for internal use */
+extern struct gen_pool *qm_fqalloc; /* FQID allocator */
+extern struct gen_pool *qm_qpalloc; /* pool-channel allocator */
+extern struct gen_pool *qm_cgralloc; /* CGR ID allocator */
+u32 qm_get_pools_sdqcr(void);
+
+int qman_wq_alloc(void);
+void qman_liodn_fixup(u16 channel);
+void qman_set_sdest(u16 channel, unsigned int cpu_idx);
+
+struct qman_portal *qman_create_affine_portal(
+ const struct qm_portal_config *config,
+ const struct qman_cgrs *cgrs);
+const struct qm_portal_config *qman_destroy_affine_portal(void);
+
+/*
+ * qman_query_fq - Queries FQD fields (via h/w query command)
+ * @fq: the frame queue object to be queried
+ * @fqd: storage for the queried FQD fields
+ */
+int qman_query_fq(struct qman_fq *fq, struct qm_fqd *fqd);
+
+/*
+ * For qman_volatile_dequeue(); Choose one PRECEDENCE. EXACT is optional. Use
+ * NUMFRAMES(n) (6-bit) or NUMFRAMES_TILLEMPTY to fill in the frame-count. Use
+ * FQID(n) to fill in the frame queue ID.
+ */
+#define QM_VDQCR_PRECEDENCE_VDQCR 0x0
+#define QM_VDQCR_PRECEDENCE_SDQCR 0x80000000
+#define QM_VDQCR_EXACT 0x40000000
+#define QM_VDQCR_NUMFRAMES_MASK 0x3f000000
+#define QM_VDQCR_NUMFRAMES_SET(n) (((n) & 0x3f) << 24)
+#define QM_VDQCR_NUMFRAMES_GET(n) (((n) >> 24) & 0x3f)
+#define QM_VDQCR_NUMFRAMES_TILLEMPTY QM_VDQCR_NUMFRAMES_SET(0)
+
+#define QMAN_VOLATILE_FLAG_WAIT 0x00000001 /* wait if VDQCR is in use */
+#define QMAN_VOLATILE_FLAG_WAIT_INT 0x00000002 /* if wait, interruptible? */
+#define QMAN_VOLATILE_FLAG_FINISH 0x00000004 /* wait till VDQCR completes */
+
+/*
+ * qman_volatile_dequeue - Issue a volatile dequeue command
+ * @fq: the frame queue object to dequeue from
+ * @flags: a bit-mask of QMAN_VOLATILE_FLAG_*** options
+ * @vdqcr: bit mask of QM_VDQCR_*** options, as per qm_dqrr_vdqcr_set()
+ *
+ * Attempts to lock access to the portal's VDQCR volatile dequeue functionality.
+ * The function will block and sleep if QMAN_VOLATILE_FLAG_WAIT is specified and
+ * the VDQCR is already in use, otherwise returns non-zero for failure. If
+ * QMAN_VOLATILE_FLAG_FINISH is specified, the function will only return once
+ * the VDQCR command has finished executing (ie. once the callback for the last
+ * DQRR entry resulting from the VDQCR command has been called). If not using
+ * the FINISH flag, completion can be determined either by detecting the
+ * presence of the QM_DQRR_STAT_UNSCHEDULED and QM_DQRR_STAT_DQCR_EXPIRED bits
+ * in the "stat" parameter passed to the FQ's dequeue callback, or by waiting
+ * for the QMAN_FQ_STATE_VDQCR bit to disappear.
+ */
+int qman_volatile_dequeue(struct qman_fq *fq, u32 flags, u32 vdqcr);
+
+int qman_alloc_fq_table(u32 num_fqids);
+
+/* QMan s/w corenet portal, low-level i/face */
+
+/*
+ * For qm_dqrr_sdqcr_set(); Choose one SOURCE. Choose one COUNT. Choose one
+ * dequeue TYPE. Choose TOKEN (8-bit).
+ * If SOURCE == CHANNELS,
+ * Choose CHANNELS_DEDICATED and/or CHANNELS_POOL(n).
+ * You can choose DEDICATED_PRECEDENCE if the portal channel should have
+ * priority.
+ * If SOURCE == SPECIFICWQ,
+ * Either select the work-queue ID with SPECIFICWQ_WQ(), or select the
+ * channel (SPECIFICWQ_DEDICATED or SPECIFICWQ_POOL()) and specify the
+ * work-queue priority (0-7) with SPECIFICWQ_WQ() - either way, you get the
+ * same value.
+ */
+#define QM_SDQCR_SOURCE_CHANNELS 0x0
+#define QM_SDQCR_SOURCE_SPECIFICWQ 0x40000000
+#define QM_SDQCR_COUNT_EXACT1 0x0
+#define QM_SDQCR_COUNT_UPTO3 0x20000000
+#define QM_SDQCR_DEDICATED_PRECEDENCE 0x10000000
+#define QM_SDQCR_TYPE_MASK 0x03000000
+#define QM_SDQCR_TYPE_NULL 0x0
+#define QM_SDQCR_TYPE_PRIO_QOS 0x01000000
+#define QM_SDQCR_TYPE_ACTIVE_QOS 0x02000000
+#define QM_SDQCR_TYPE_ACTIVE 0x03000000
+#define QM_SDQCR_TOKEN_MASK 0x00ff0000
+#define QM_SDQCR_TOKEN_SET(v) (((v) & 0xff) << 16)
+#define QM_SDQCR_TOKEN_GET(v) (((v) >> 16) & 0xff)
+#define QM_SDQCR_CHANNELS_DEDICATED 0x00008000
+#define QM_SDQCR_SPECIFICWQ_MASK 0x000000f7
+#define QM_SDQCR_SPECIFICWQ_DEDICATED 0x00000000
+#define QM_SDQCR_SPECIFICWQ_POOL(n) ((n) << 4)
+#define QM_SDQCR_SPECIFICWQ_WQ(n) (n)
+
+/* For qm_dqrr_vdqcr_set(): use FQID(n) to fill in the frame queue ID */
+#define QM_VDQCR_FQID_MASK 0x00ffffff
+#define QM_VDQCR_FQID(n) ((n) & QM_VDQCR_FQID_MASK)
+
+/*
+ * Used by all portal interrupt registers except 'inhibit'
+ * Channels with frame availability
+ */
+#define QM_PIRQ_DQAVAIL 0x0000ffff
+
+/* The DQAVAIL interrupt fields break down into these bits; */
+#define QM_DQAVAIL_PORTAL 0x8000 /* Portal channel */
+#define QM_DQAVAIL_POOL(n) (0x8000 >> (n)) /* Pool channel, n==[1..15] */
+#define QM_DQAVAIL_MASK 0xffff
+/* This mask contains all the "irqsource" bits visible to API users */
+#define QM_PIRQ_VISIBLE (QM_PIRQ_SLOW | QM_PIRQ_DQRI)
+
+extern struct qman_portal *affine_portals[NR_CPUS];
+const struct qm_portal_config *qman_get_qm_portal_config(
+ struct qman_portal *portal);