Release 4.11 drivers/soc/fsl/qbman/bman_portal.c
/* Copyright 2008 - 2016 Freescale Semiconductor, Inc.
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* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
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* 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;
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* 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"
static struct bman_portal *affine_bportals[NR_CPUS];
static struct cpumask portal_cpus;
/* protect bman global registers and global data shared among portals */
static DEFINE_SPINLOCK(bman_lock);
static struct bman_portal *init_pcfg(struct bm_portal_config *pcfg)
{
struct bman_portal *p = bman_create_affine_portal(pcfg);
if (!p) {
dev_crit(pcfg->dev, "%s: Portal failure on cpu %d\n",
__func__, pcfg->cpu);
return NULL;
}
bman_p_irqsource_add(p, BM_PIRQ_RCRI);
affine_bportals[pcfg->cpu] = p;
dev_info(pcfg->dev, "Portal initialised, cpu %d\n", pcfg->cpu);
return p;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Claudiu Manoil | 80 | 100.00% | 1 | 100.00% |
| Total | 80 | 100.00% | 1 | 100.00% |
static int bman_offline_cpu(unsigned int cpu)
{
struct bman_portal *p = affine_bportals[cpu];
const struct bm_portal_config *pcfg;
if (!p)
return 0;
pcfg = bman_get_bm_portal_config(p);
if (!pcfg)
return 0;
irq_set_affinity(pcfg->irq, cpumask_of(0));
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Claudiu Manoil | 54 | 84.38% | 1 | 50.00% |
| Sebastian Andrzej Siewior | 10 | 15.62% | 1 | 50.00% |
| Total | 64 | 100.00% | 2 | 100.00% |
static int bman_online_cpu(unsigned int cpu)
{
struct bman_portal *p = affine_bportals[cpu];
const struct bm_portal_config *pcfg;
if (!p)
return 0;
pcfg = bman_get_bm_portal_config(p);
if (!pcfg)
return 0;
irq_set_affinity(pcfg->irq, cpumask_of(cpu));
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Claudiu Manoil | 56 | 87.50% | 1 | 50.00% |
| Sebastian Andrzej Siewior | 8 | 12.50% | 1 | 50.00% |
| Total | 64 | 100.00% | 2 | 100.00% |
static int bman_portal_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *node = dev->of_node;
struct bm_portal_config *pcfg;
struct resource *addr_phys[2];
void __iomem *va;
int irq, 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;
}
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) {
dev_err(dev, "ioremap::CE failed\n");
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) {
dev_err(dev, "ioremap::CI failed\n");
goto err_ioremap2;
}
pcfg->addr_virt[DPAA_PORTAL_CI] = va;
spin_lock(&bman_lock);
cpu = cpumask_next_zero(-1, &portal_cpus);
if (cpu >= nr_cpu_ids) {
/* unassigned portal, skip init */
spin_unlock(&bman_lock);
return 0;
}
cpumask_set_cpu(cpu, &portal_cpus);
spin_unlock(&bman_lock);
pcfg->cpu = cpu;
if (!init_pcfg(pcfg)) {
dev_err(dev, "portal init failed\n");
goto err_portal_init;
}
/* clear irq affinity if assigned cpu is offline */
if (!cpu_online(cpu))
bman_offline_cpu(cpu);
return 0;
err_portal_init:
iounmap(pcfg->addr_virt[DPAA_PORTAL_CI]);
err_ioremap2:
iounmap(pcfg->addr_virt[DPAA_PORTAL_CE]);
err_ioremap1:
return -ENXIO;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Claudiu Manoil | 426 | 100.00% | 2 | 100.00% |
| Total | 426 | 100.00% | 2 | 100.00% |
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,
};
static int __init bman_portal_driver_register(struct platform_driver *drv)
{
int ret;
ret = platform_driver_register(drv);
if (ret < 0)
return ret;
ret = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN,
"soc/qbman_portal:online",
bman_online_cpu, bman_offline_cpu);
if (ret < 0) {
pr_err("bman: failed to register hotplug callbacks.\n");
platform_driver_unregister(drv);
return ret;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Claudiu Manoil | 37 | 54.41% | 1 | 50.00% |
| Sebastian Andrzej Siewior | 31 | 45.59% | 1 | 50.00% |
| Total | 68 | 100.00% | 2 | 100.00% |
module_driver(bman_portal_driver,
bman_portal_driver_register, platform_driver_unregister);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Claudiu Manoil | 739 | 93.78% | 2 | 66.67% |
| Sebastian Andrzej Siewior | 49 | 6.22% | 1 | 33.33% |
| Total | 788 | 100.00% | 3 | 100.00% |
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