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-rw-r--r--linux/drivers/soc/fsl/qbman/bman_priv.h136
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diff --git a/linux/drivers/soc/fsl/qbman/bman_priv.h b/linux/drivers/soc/fsl/qbman/bman_priv.h
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+/* Copyright 2008 - 2015 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/bman.h>
+
+/* used by CCSR and portal interrupt code */
+enum bm_isr_reg {
+ bm_isr_status = 0,
+ bm_isr_enable = 1,
+ bm_isr_disable = 2,
+ bm_isr_inhibit = 3
+};
+
+#ifdef CONFIG_FSL_BMAN
+/* Set depletion thresholds associated with a buffer pool. Requires that the
+ * operating system have access to BMan CCSR (ie. compiled in support and
+ * run-time access courtesy of the device-tree). */
+int bm_pool_set(u32 bpid, const u32 *thresholds);
+#define BM_POOL_THRESH_SW_ENTER 0
+#define BM_POOL_THRESH_SW_EXIT 1
+#define BM_POOL_THRESH_HW_ENTER 2
+#define BM_POOL_THRESH_HW_EXIT 3
+
+/* Read the free buffer count for a given buffer */
+u32 bm_pool_free_buffers(u32 bpid);
+
+#endif /* CONFIG_FSL_BMAN */
+
+#if defined(CONFIG_FSL_BMAN_PORTAL) || defined(CONFIG_FSL_BMAN_PORTAL_MODULE)
+/* Revision info (for errata and feature handling) */
+#define BMAN_REV10 0x0100
+#define BMAN_REV20 0x0200
+#define BMAN_REV21 0x0201
+extern u16 bman_ip_rev; /* 0 if uninitialised, otherwise BMAN_REVx */
+
+struct bm_portal_config {
+ /* Corenet portal addresses;
+ * [0]==cache-enabled, [1]==cache-inhibited. */
+ __iomem void *addr_virt[2];
+#ifndef __rtems__
+ struct resource addr_phys[2];
+ /* Allow these to be joined in lists */
+ struct list_head list;
+#endif /* __rtems__ */
+ /* User-visible portal configuration settings */
+ struct bman_portal_config public_cfg;
+};
+
+/* Hooks from bman_driver.c in to bman_high.c */
+struct bman_portal *bman_create_portal(
+ struct bman_portal *portal,
+ const struct bm_portal_config *config);
+struct bman_portal *bman_create_affine_portal(
+ const struct bm_portal_config *config);
+struct bman_portal *bman_create_affine_slave(struct bman_portal *redirect,
+ int cpu);
+void bman_destroy_portal(struct bman_portal *bm);
+
+const struct bm_portal_config *bman_destroy_affine_portal(void);
+
+/* Stockpile build constants. The _LOW value: when bman_acquire() is called and
+ * the stockpile fill-level is <= _LOW, an acquire is attempted from h/w but it
+ * might fail (if the buffer pool is depleted). So this value provides some
+ * "stagger" in that the bman_acquire() function will only fail if lots of bufs
+ * are requested at once or if h/w has been tested a couple of times without
+ * luck. The _HIGH value: when bman_release() is called and the stockpile
+ * fill-level is >= _HIGH, a release is attempted to h/w but it might fail (if
+ * the release ring is full). So this value provides some "stagger" so that
+ * ring-access is retried a couple of times prior to the API returning a
+ * failure. The following *must* be true;
+ * BMAN_STOCKPILE_HIGH-BMAN_STOCKPILE_LOW > 8
+ * (to avoid thrashing)
+ * BMAN_STOCKPILE_SZ >= 16
+ * (as the release logic expects to either send 8 buffers to hw prior to
+ * adding the given buffers to the stockpile or add the buffers to the
+ * stockpile before sending 8 to hw, as the API must be an all-or-nothing
+ * success/fail.)
+ */
+#define BMAN_STOCKPILE_SZ 16u /* number of bufs in per-pool cache */
+#define BMAN_STOCKPILE_LOW 2u /* when fill is <= this, acquire from hw */
+#define BMAN_STOCKPILE_HIGH 14u /* when fill is >= this, release to hw */
+
+/*************************************************/
+/* BMan s/w corenet portal, low-level i/face */
+/*************************************************/
+
+/* Used by all portal interrupt registers except 'inhibit'
+ * This mask contains all the "irqsource" bits visible to API users
+ */
+#define BM_PIRQ_VISIBLE (BM_PIRQ_RCRI | BM_PIRQ_BSCN)
+
+/* These are bm_<reg>_<verb>(). So for example, bm_disable_write() means "write
+ * the disable register" rather than "disable the ability to write". */
+#define bm_isr_status_read(bm) __bm_isr_read(bm, bm_isr_status)
+#define bm_isr_status_clear(bm, m) __bm_isr_write(bm, bm_isr_status, m)
+#define bm_isr_enable_read(bm) __bm_isr_read(bm, bm_isr_enable)
+#define bm_isr_enable_write(bm, v) __bm_isr_write(bm, bm_isr_enable, v)
+#define bm_isr_disable_read(bm) __bm_isr_read(bm, bm_isr_disable)
+#define bm_isr_disable_write(bm, v) __bm_isr_write(bm, bm_isr_disable, v)
+#define bm_isr_inhibit(bm) __bm_isr_write(bm, bm_isr_inhibit, 1)
+#define bm_isr_uninhibit(bm) __bm_isr_write(bm, bm_isr_inhibit, 0)
+
+const struct bm_portal_config *
+bman_get_bm_portal_config(const struct bman_portal *portal);
+#endif /* CONFIG_FSL_BMAN_PORTAL* */