New upstream version 17.11-rc3

Change-Id: I6a5baa40612fe0c20f30b5fa773a6cbbac63a685
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 310 insertions, 0 deletions

diff --git a/drivers/bus/dpaa/base/qbman/qman_priv.h b/drivers/bus/dpaa/base/qbman/qman_priv.h
new file mode 100644
index 00000000..3e1d7f92
--- /dev/null
+++ b/drivers/bus/dpaa/base/qbman/qman_priv.h
@@ -0,0 +1,310 @@
+/*-
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ *   BSD LICENSE
+ *
+ * Copyright 2008-2016 Freescale Semiconductor Inc.
+ * Copyright 2017 NXP.
+ *
+ * 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 the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *   GPL LICENSE SUMMARY
+ *
+ * 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDERS OR CONTRIBUTORS 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.
+ */
+
+#ifndef __QMAN_PRIV_H
+#define __QMAN_PRIV_H
+
+#include "dpaa_sys.h"
+#include <fsl_qman.h>
+
+/* 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.
+ */
+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, int num)
+{
+	return QM_MCR_QUERYCONGESTION(&c->q, num);
+}
+
+static inline void qman_cgrs_set(struct qman_cgrs *c, int num)
+{
+	c->q.state[__CGR_WORD(num)] |= (0x80000000 >> __CGR_SHIFT(num));
+}
+
+static inline void qman_cgrs_unset(struct qman_cgrs *c, int num)
+{
+	c->q.state[__CGR_WORD(num)] &= ~(0x80000000 >> __CGR_SHIFT(num));
+}
+
+static inline int qman_cgrs_next(struct qman_cgrs *c, int num)
+{
+	while ((++num < (int)__CGR_NUM) && !qman_cgrs_get(c, num))
+		;
+	return num;
+}
+
+static inline void qman_cgrs_cp(struct qman_cgrs *dest,
+				const struct qman_cgrs *src)
+{
+	memcpy(dest, src, sizeof(*dest));
+}
+
+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++);
+}
+
+/* used by CCSR and portal interrupt code */
+enum qm_isr_reg {
+	qm_isr_status = 0,
+	qm_isr_enable = 1,
+	qm_isr_disable = 2,
+	qm_isr_inhibit = 3
+};
+
+struct qm_portal_config {
+	/*
+	 * Corenet portal addresses;
+	 * [0]==cache-enabled, [1]==cache-inhibited.
+	 */
+	void __iomem *addr_virt[2];
+	struct device_node *node;
+	/* Allow these to be joined in lists */
+	struct list_head list;
+	/* User-visible portal configuration settings */
+	/* If the caller enables DQRR stashing (and thus wishes to operate the
+	 * portal from only one cpu), this is the logical CPU that the portal
+	 * will stash to. Whether stashing is enabled or not, this setting is
+	 * also used for any "core-affine" portals, ie. default portals
+	 * associated to the corresponding cpu. -1 implies that there is no
+	 * core affinity configured.
+	 */
+	int cpu;
+	/* portal interrupt line */
+	int irq;
+	/* the unique index of this portal */
+	u32 index;
+	/* Is this portal shared? (If so, it has coarser locking and demuxes
+	 * processing on behalf of other CPUs.).
+	 */
+	int is_shared;
+	/* The portal's dedicated channel id, use this value for initialising
+	 * frame queues to target this portal when scheduled.
+	 */
+	u16 channel;
+	/* A mask of which 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
+#define QMAN_REV32 0x0302
+extern u16 qman_ip_rev; /* 0 if uninitialised, otherwise QMAN_REVx */
+extern u32 qman_clk;
+
+int qm_set_wpm(int wpm);
+int qm_get_wpm(int *wpm);
+
+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);
+
+struct qm_portal_config *qm_get_unused_portal(void);
+struct qm_portal_config *qm_get_unused_portal_idx(uint32_t idx);
+
+void qm_put_unused_portal(struct qm_portal_config *pcfg);
+void qm_set_liodns(struct qm_portal_config *pcfg);
+
+/* This CGR feature is supported by h/w and required by unit-tests and the
+ * debugfs hooks, so is implemented in the driver. However it allows an explicit
+ * corruption of h/w fields by s/w that are usually incorruptible (because the
+ * counters are usually maintained entirely within h/w). As such, we declare
+ * this API internally.
+ */
+int qman_testwrite_cgr(struct qman_cgr *cgr, u64 i_bcnt,
+		       struct qm_mcr_cgrtestwrite *result);
+
+#ifdef CONFIG_FSL_QMAN_FQ_LOOKUP
+/* If the fq object pointer is greater than the size of context_b field,
+ * than a lookup table is required.
+ */
+int qman_setup_fq_lookup_table(size_t num_entries);
+#endif
+
+/*   QMan s/w corenet portal, low-level i/face	 */
+
+/*
+ * For 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)
+
+#define QM_VDQCR_FQID_MASK		0x00ffffff
+#define QM_VDQCR_FQID(n)		((n) & QM_VDQCR_FQID_MASK)
+
+#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_VERB_COLOUR_MASK	0x18	/* 4 possible values; */
+#define QM_EQCR_VERB_COLOUR_GREEN	0x00
+#define QM_EQCR_VERB_COLOUR_YELLOW	0x08
+#define QM_EQCR_VERB_COLOUR_RED		0x10
+#define QM_EQCR_VERB_COLOUR_OVERRIDE	0x18
+#define QM_EQCR_VERB_INTERRUPT		0x04	/* on command consumption */
+#define QM_EQCR_VERB_ORP		0x02	/* enable order restoration */
+#define QM_EQCR_DCA_ENABLE		0x80
+#define QM_EQCR_DCA_PARK		0x40
+#define QM_EQCR_DCA_IDXMASK		0x0f	/* "DQRR::idx" goes here */
+#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 */
+#define QM_EQCR_FQID_NULL		0	/* eg. for an ORP seqnum hole */
+
+#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
+
+/*
+ * 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)
+
+/* These are qm_<reg>_<verb>(). So for example, qm_disable_write() means "write
+ * the disable register" rather than "disable the ability to write".
+ */
+#define qm_isr_status_read(qm)		__qm_isr_read(qm, qm_isr_status)
+#define qm_isr_status_clear(qm, m)	__qm_isr_write(qm, qm_isr_status, m)
+#define qm_isr_enable_read(qm)		__qm_isr_read(qm, qm_isr_enable)
+#define qm_isr_enable_write(qm, v)	__qm_isr_write(qm, qm_isr_enable, v)
+#define qm_isr_disable_read(qm)		__qm_isr_read(qm, qm_isr_disable)
+#define qm_isr_disable_write(qm, v)	__qm_isr_write(qm, qm_isr_disable, v)
+/* TODO: unfortunate name-clash here, reword? */
+#define qm_isr_inhibit(qm)		__qm_isr_write(qm, qm_isr_inhibit, 1)
+#define qm_isr_uninhibit(qm)		__qm_isr_write(qm, qm_isr_inhibit, 0)
+
+#define QMAN_PORTAL_IRQ_PATH "/dev/fsl-usdpaa-irq"
+
+#endif /* _QMAN_PRIV_H */