1 files changed, 0 insertions, 399 deletions
diff --git a/linux/drivers/soc/fsl/qbman/bman_portal.c b/linux/drivers/soc/fsl/qbman/bman_portal.c
deleted file mode 100644
index f9fd022c..00000000
--- a/linux/drivers/soc/fsl/qbman/bman_portal.c
+++ /dev/null
@@ -1,399 +0,0 @@
-#include <machine/rtems-bsd-kernel-space.h>
-
-#include <rtems/bsd/local/opt_dpaa.h>
-
-/* 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.
- */
-
-#include "bman_priv.h"
-
-/*
- * Global variables of the max portal/pool number this BMan version supported
- */
-u16 bman_ip_rev;
-EXPORT_SYMBOL(bman_ip_rev);
-
-u16 bman_pool_max;
-EXPORT_SYMBOL(bman_pool_max);
-
-/* After initialising cpus that own shared portal configs, we cache the
- * resulting portals (ie. not just the configs) in this array. Then we
- * initialise slave cpus that don't have their own portals, redirecting them to
- * portals from this cache in a round-robin assignment. */
-static struct bman_portal *shared_portals[NR_CPUS] __initdata;
-static int num_shared_portals __initdata;
-static int shared_portals_idx __initdata;
-
-static LIST_HEAD(unused_pcfgs);
-static void *affine_bportals[NR_CPUS];
-
-#ifndef __rtems__
-static const int flags[] = {0, _PAGE_GUARDED | _PAGE_NO_CACHE};
-#else /* __rtems__ */
-static const int flags[] = {0, 0};
-#endif /* __rtems__ */
-
-static struct bm_portal_config * __init get_pcfg(struct list_head *list)
-{
-	struct bm_portal_config *pcfg;
-
-	if (list_empty(list))
-		return NULL;
-	pcfg = list_entry(list->prev, struct bm_portal_config, list);
-	list_del(&pcfg->list);
-
-	return pcfg;
-}
-
-static struct bman_portal * __init init_pcfg(struct bm_portal_config *pcfg)
-{
-	struct bman_portal *p = bman_create_affine_portal(pcfg);
-
-	if (p) {
-#ifdef CONFIG_FSL_DPA_PIRQ_SLOW
-		bman_p_irqsource_add(p, BM_PIRQ_RCRI | BM_PIRQ_BSCN);
-#endif
-		pr_info("Portal %sinitialised, cpu %d\n",
-			pcfg->public_cfg.is_shared ? "(shared) " : "",
-			pcfg->public_cfg.cpu);
-		affine_bportals[pcfg->public_cfg.cpu] = p;
-	} else
-		pr_crit("Portal failure on cpu %d\n", pcfg->public_cfg.cpu);
-
-	return p;
-}
-
-static void __init init_slave(int cpu)
-{
-	struct bman_portal *p;
-
-	p = bman_create_affine_slave(shared_portals[shared_portals_idx++], cpu);
-	if (!p)
-		pr_err("Slave portal failure on cpu %d\n", cpu);
-	else
-		pr_info("Portal %s initialised, cpu %d\n", "(slave) ", cpu);
-	if (shared_portals_idx >= num_shared_portals)
-		shared_portals_idx = 0;
-	affine_bportals[cpu] = p;
-}
-
-/* Bootarg "bportals=[...]" has the same syntax as "qportals=", and so the
- * parsing is in dpaa_sys.h. The syntax is a comma-separated list of indexes
- * and/or ranges of indexes, with each being optionally prefixed by "s" to
- * explicitly mark it or them for sharing.
- *    Eg;
- *	  bportals=s0,1-3,s4
- * means that cpus 1,2,3 get "unshared" portals, cpus 0 and 4 get "shared"
- * portals, and any remaining cpus share the portals that are assigned to cpus 0
- * or 4, selected in a round-robin fashion. (In this example, cpu 5 would share
- * cpu 0's portal, cpu 6 would share cpu4's portal, and cpu 7 would share cpu
- * 0's portal.) */
-static struct cpumask want_unshared __initdata; /* cpus requested without "s" */
-static struct cpumask want_shared __initdata; /* cpus requested with "s" */
-
-static int __init parse_bportals(char *str)
-{
-	return parse_portals_bootarg(str, &want_shared, &want_unshared,
-				     "bportals");
-}
-__setup("bportals=", parse_bportals);
-
-static void __cold bman_offline_cpu(unsigned int cpu)
-{
-	struct bman_portal *p = (struct bman_portal *)affine_bportals[cpu];
-	const struct bm_portal_config *pcfg;
-
-	if (p) {
-		pcfg = bman_get_bm_portal_config(p);
-		if (pcfg)
-			irq_set_affinity(pcfg->public_cfg.irq, cpumask_of(0));
-	}
-}
-
-#ifdef CONFIG_HOTPLUG_CPU
-static void __cold bman_online_cpu(unsigned int cpu)
-{
-	struct bman_portal *p = (struct bman_portal *)affine_bportals[cpu];
-	const struct bm_portal_config *pcfg;
-
-	if (p) {
-		pcfg = bman_get_bm_portal_config(p);
-		if (pcfg)
-			irq_set_affinity(pcfg->public_cfg.irq, cpumask_of(cpu));
-	}
-}
-
-static int __cold bman_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:
-		bman_online_cpu(cpu);
-		break;
-	case CPU_DOWN_PREPARE:
-	case CPU_DOWN_PREPARE_FROZEN:
-		bman_offline_cpu(cpu);
-	}
-
-	return NOTIFY_OK;
-}
-
-static struct notifier_block bman_hotplug_cpu_notifier = {
-	.notifier_call = bman_hotplug_cpu_callback,
-};
-#endif /* CONFIG_HOTPLUG_CPU */
-
-static int __cold bman_portal_probe(struct platform_device *of_dev)
-{
-	struct device *dev = &of_dev->dev;
-	struct device_node *node = dev->of_node;
-	struct bm_portal_config *pcfg;
-	int i, irq, ret;
-
-	if (!of_device_is_available(node))
-		return -ENODEV;
-
-	if (of_device_is_compatible(node, "fsl,bman-portal-1.0") ||
-		of_device_is_compatible(node, "fsl,bman-portal-1.0.0")) {
-		bman_ip_rev = BMAN_REV10;
-		bman_pool_max = 64;
-	} else if (of_device_is_compatible(node, "fsl,bman-portal-2.0") ||
-		of_device_is_compatible(node, "fsl,bman-portal-2.0.8")) {
-		bman_ip_rev = BMAN_REV20;
-		bman_pool_max = 8;
-	} else if (of_device_is_compatible(node, "fsl,bman-portal-2.1.0") ||
-		   of_device_is_compatible(node, "fsl,bman-portal-2.1.1") ||
-		   of_device_is_compatible(node, "fsl,bman-portal-2.1.2") ||
-		   of_device_is_compatible(node, "fsl,bman-portal-2.1.3")) {
-		bman_ip_rev = BMAN_REV21;
-		bman_pool_max = 64;
-	}
-
-	pcfg = devm_kmalloc(dev, sizeof(*pcfg), GFP_KERNEL);
-	if (!pcfg) {
-		dev_err(dev, "Can't allocate portal config\n");
-		return -ENOMEM;
-	}
-
-	for (i = DPA_PORTAL_CE; i <= DPA_PORTAL_CI; i++) {
-		ret = of_address_to_resource(node, i, pcfg->addr_phys + i);
-		if (ret < 0) {
-			dev_err(dev, "Can't get %s property 'reg::%d'\n",
-				node->full_name, i);
-			return ret;
-		}
-		ret = devm_request_resource(dev, &iomem_resource,
-					    pcfg->addr_phys + i);
-		if (ret < 0)
-			return ret;
-		pcfg->addr_virt[i] = devm_ioremap_prot(dev,
-					pcfg->addr_phys[i].start,
-					resource_size(pcfg->addr_phys + i),
-					flags[i]);
-		if (!pcfg->addr_virt[i])
-			return -ENXIO;
-	}
-
-	pcfg->public_cfg.cpu = -1;
-
-	irq = irq_of_parse_and_map(node, 0);
-	if (irq == NO_IRQ) {
-		dev_err(dev, "Can't get %s property 'interrupts'\n",
-			node->full_name);
-		return -ENXIO;
-	}
-	pcfg->public_cfg.irq = irq;
-
-	bman_depletion_fill(&pcfg->public_cfg.mask);
-
-	list_add_tail(&pcfg->list, &unused_pcfgs);
-
-	return 0;
-};
-
-static int __cold bman_portal_remove(struct platform_device *of_dev)
-{
-	return 0;
-};
-
-static const struct of_device_id bman_portal_ids[] = {
-	{
-		.compatible = "fsl,bman-portal",
-	},
-	{}
-};
-MODULE_DEVICE_TABLE(of, bman_portal_ids);
-
-static struct platform_driver bman_portal_driver = {
-	.driver = {
-		.name = KBUILD_MODNAME,
-		.of_match_table = bman_portal_ids,
-	},
-	.probe = bman_portal_probe,
-	.remove = bman_portal_remove,
-};
-
-static int __init bman_portal_driver_register(struct platform_driver *drv)
-{
-	int _errno;
-	struct cpumask slave_cpus;
-	struct cpumask unshared_cpus = *cpu_none_mask;
-	struct cpumask shared_cpus = *cpu_none_mask;
-	LIST_HEAD(unshared_pcfgs);
-	LIST_HEAD(shared_pcfgs);
-	struct bm_portal_config *pcfg;
-	struct bman_portal *p;
-	int cpu;
-	struct cpumask offline_cpus;
-
-	_errno = platform_driver_register(drv);
-	if (_errno < 0)
-		return _errno;
-
-/* Initialise the BMan driver. The meat of this function deals with portals. The
- * following describes the flow of portal-handling, the code "steps" refer to
- * this description;
- * 1. Portal configs are parsed from the device-tree into 'unused_pcfgs', with
- *    ::cpu==-1. Regions and interrupts are mapped (but interrupts are not
- *    bound).
- * 2. The "want_shared" and "want_unshared" lists (as filled by the
- *    "bportals=[...]" bootarg) are processed, allocating portals and assigning
- *    them to cpus, placing them in the relevant list and setting ::cpu as
- *    appropriate. If no "bportals" bootarg was present, the defaut is to try to
- *    assign portals to all online cpus at the time of driver initialisation.
- *    Any failure to allocate portals (when parsing the "want" lists or when
- *    using default behaviour) will be silently tolerated (the "fixup" logic in
- *    step 3 will determine what happens in this case).
- * 3. Do fixups relative to cpu_online_mask(). If no portals are marked for
- *    sharing and sharing is required (because not all cpus have been assigned
- *    portals), then one portal will marked for sharing. Conversely if no
- *    sharing is required, any portals marked for sharing will not be shared. It
- *    may be that sharing occurs when it wasn't expected, if portal allocation
- *    failed to honour all the requested assignments (including the default
- *    assignments if no bootarg is present).
- * 4. Unshared portals are initialised on their respective cpus.
- * 5. Shared portals are initialised on their respective cpus.
- * 6. Each remaining cpu is initialised to slave to one of the shared portals,
- *    which are selected in a round-robin fashion.
- */
-	/* Step 2. */
-	for_each_possible_cpu(cpu) {
-		if (cpumask_test_cpu(cpu, &want_shared)) {
-			pcfg = get_pcfg(&unused_pcfgs);
-			if (!pcfg)
-				break;
-			pcfg->public_cfg.cpu = cpu;
-			list_add_tail(&pcfg->list, &shared_pcfgs);
-			cpumask_set_cpu(cpu, &shared_cpus);
-		}
-		if (cpumask_test_cpu(cpu, &want_unshared)) {
-			if (cpumask_test_cpu(cpu, &shared_cpus))
-				continue;
-			pcfg = get_pcfg(&unused_pcfgs);
-			if (!pcfg)
-				break;
-			pcfg->public_cfg.cpu = cpu;
-			list_add_tail(&pcfg->list, &unshared_pcfgs);
-			cpumask_set_cpu(cpu, &unshared_cpus);
-		}
-	}
-	if (list_empty(&shared_pcfgs) && list_empty(&unshared_pcfgs)) {
-		/* Default, give an unshared portal to each online cpu */
-		for_each_possible_cpu(cpu) {
-			pcfg = get_pcfg(&unused_pcfgs);
-			if (!pcfg)
-				break;
-			pcfg->public_cfg.cpu = cpu;
-			list_add_tail(&pcfg->list, &unshared_pcfgs);
-			cpumask_set_cpu(cpu, &unshared_cpus);
-		}
-	}
-	/* Step 3. */
-	cpumask_andnot(&slave_cpus, cpu_possible_mask, &shared_cpus);
-	cpumask_andnot(&slave_cpus, &slave_cpus, &unshared_cpus);
-	if (cpumask_empty(&slave_cpus)) {
-		/* No sharing required */
-		if (!list_empty(&shared_pcfgs)) {
-			/* Migrate "shared" to "unshared" */
-			cpumask_or(&unshared_cpus, &unshared_cpus,
-				   &shared_cpus);
-			cpumask_clear(&shared_cpus);
-			list_splice_tail(&shared_pcfgs, &unshared_pcfgs);
-			INIT_LIST_HEAD(&shared_pcfgs);
-		}
-	} else {
-		/* Sharing required */
-		if (list_empty(&shared_pcfgs)) {
-			/* Migrate one "unshared" to "shared" */
-			pcfg = get_pcfg(&unshared_pcfgs);
-			if (!pcfg) {
-				pr_crit("No portals available!\n");
-				return 0;
-			}
-			cpumask_clear_cpu(pcfg->public_cfg.cpu, &unshared_cpus);
-			cpumask_set_cpu(pcfg->public_cfg.cpu, &shared_cpus);
-			list_add_tail(&pcfg->list, &shared_pcfgs);
-		}
-	}
-	/* Step 4. */
-	list_for_each_entry(pcfg, &unshared_pcfgs, list) {
-		pcfg->public_cfg.is_shared = 0;
-		p = init_pcfg(pcfg);
-	}
-	/* Step 5. */
-	list_for_each_entry(pcfg, &shared_pcfgs, list) {
-		pcfg->public_cfg.is_shared = 1;
-		p = init_pcfg(pcfg);
-		if (p)
-			shared_portals[num_shared_portals++] = p;
-	}
-	/* Step 6. */
-	if (!cpumask_empty(&slave_cpus))
-		for_each_cpu(cpu, &slave_cpus)
-			init_slave(cpu);
-	pr_info("Portals initialised\n");
-	cpumask_andnot(&offline_cpus, cpu_possible_mask, cpu_online_mask);
-	for_each_cpu(cpu, &offline_cpus)
-		bman_offline_cpu(cpu);
-
-#ifdef CONFIG_HOTPLUG_CPU
-	register_hotcpu_notifier(&bman_hotplug_cpu_notifier);
-#endif
-
-	bman_seed_bpid_range(0, bman_pool_max);
-
-	return 0;
-}
-
-module_driver(bman_portal_driver,
-	      bman_portal_driver_register, platform_driver_unregister);