911 lines
16 KiB
C++
911 lines
16 KiB
C++
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/*
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* \brief Emulation of Linux kernel interfaces
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* \author Stefan Kalkowski
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* \date 2018-01-16
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*/
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/*
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* Copyright (C) 2018 Genode Labs GmbH
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*
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* This file is distributed under the terms of the GNU General Public License
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* version 2.
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*/
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/**
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* Unconditionally include common Genode headers _before_ lx_emul.h to
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* prevent shenanigans with macro definitions.
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*/
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#include <base/attached_io_mem_dataspace.h>
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#include <base/env.h>
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#include <base/snprintf.h>
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#include <os/backtrace.h>
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#include <component.h>
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#include <lx_emul.h>
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#include <lx_emul/impl/kernel.h>
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#include <lx_emul/impl/delay.h>
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#include <lx_emul/impl/slab.h>
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#include <lx_emul/impl/work.h>
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#include <lx_emul/impl/spinlock.h>
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#include <lx_emul/impl/mutex.h>
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#include <lx_emul/impl/sched.h>
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#include <lx_emul/impl/timer.h>
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#include <lx_emul/impl/completion.h>
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#include <lx_kit/irq.h>
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extern "C" { struct page; }
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class Addr_to_page_mapping : public Genode::List<Addr_to_page_mapping>::Element
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{
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private:
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unsigned long _addr { 0 };
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struct page *_page { nullptr };
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static Genode::List<Addr_to_page_mapping> & _list()
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{
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static Genode::List<Addr_to_page_mapping> _l;
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return _l;
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}
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public:
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Addr_to_page_mapping(unsigned long addr, struct page *page)
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: _addr(addr), _page(page) { }
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static void insert(struct page * page)
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{
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Addr_to_page_mapping *m = (Addr_to_page_mapping*)
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Lx::Malloc::mem().alloc(sizeof (Addr_to_page_mapping));
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m->_addr = (unsigned long)page->addr;
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m->_page = page;
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_list().insert(m);
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}
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static struct page * remove(unsigned long addr)
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{
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for (Addr_to_page_mapping *m = _list().first(); m; m = m->next())
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if (m->_addr == addr) {
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struct page * ret = m->_page;
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_list().remove(m);
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Lx::Malloc::mem().free(m);
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return ret;
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}
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return nullptr;
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}
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};
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struct Device : Genode::List<Device>::Element
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{
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struct device * dev; /* Linux device */
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Device(struct device *dev) : dev(dev) {
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list()->insert(this); }
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static Genode::List<Device> *list()
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{
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static Genode::List<Device> _list;
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return &_list;
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}
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};
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class Driver : public Genode::List<Driver>::Element
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{
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private:
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struct device_driver * _drv; /* Linux driver */
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public:
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Driver(struct device_driver *drv) : _drv(drv)
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{
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list()->insert(this);
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}
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/**
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* List of all currently registered drivers
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*/
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static Genode::List<Driver> *list()
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{
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static Genode::List<Driver> _list;
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return &_list;
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}
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/**
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* Match device and drivers
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*/
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bool match(struct device *dev)
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{
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/*
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* Don't try if buses don't match, since drivers often use 'container_of'
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* which might cast the device to non-matching type
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*/
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if (_drv->bus != dev->bus)
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return false;
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return _drv->bus->match ? _drv->bus->match(dev, _drv) : true;
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}
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/**
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* Probe device with driver
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*/
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int probe(struct device *dev)
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{
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dev->driver = _drv;
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if (dev->bus->probe) return dev->bus->probe(dev);
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else if (_drv->probe)
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return _drv->probe(dev);
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return 0;
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}
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};
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static Session_component * session = nullptr;
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void Session_component::_register_session_component(Session_component & s) {
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session = &s; }
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#include <lx_emul/extern_c_begin.h>
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#include <linux/phy.h>
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#include <linux/timecounter.h>
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#include <lx_emul/extern_c_end.h>
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extern "C" {
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void lx_backtrace()
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{
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Genode::backtrace();
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}
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int platform_driver_register(struct platform_driver * drv)
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{
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static platform_device pd_fec;
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static const char * name = "2188000.ethernet";
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pd_fec.name = name;
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return drv->probe(&pd_fec);
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}
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struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
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unsigned char name_assign_type,
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void (*setup)(struct net_device *),
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unsigned int txqs, unsigned int rxqs)
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{
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size_t alloc_size = ALIGN(sizeof(struct net_device), NETDEV_ALIGN);
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alloc_size += sizeof_priv;
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alloc_size += NETDEV_ALIGN - 1;
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struct net_device *p = (struct net_device*) kzalloc(alloc_size,
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GFP_KERNEL);
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struct net_device *dev = PTR_ALIGN(p, NETDEV_ALIGN);
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INIT_LIST_HEAD(&dev->mc.list);
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dev->mc.count = 0;
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dev->gso_max_segs = GSO_MAX_SEGS;
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static const struct ethtool_ops default_ethtool_ops { };
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if (!dev->ethtool_ops) dev->ethtool_ops = &default_ethtool_ops;
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dev->dev_addr = (unsigned char*) kzalloc(ETH_ALEN, GFP_KERNEL);
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return dev;
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}
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const struct of_device_id *of_match_device(const struct of_device_id *matches,
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const struct device *dev)
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{
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for (; matches && matches->compatible[0]; matches++)
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if (Genode::strcmp(matches->compatible, "fsl,imx6q-fec") == 0)
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return matches;
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return NULL;
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}
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void * devm_ioremap_resource(struct device *dev, struct resource *res)
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{
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static Genode::Attached_io_mem_dataspace io_ds(Lx_kit::env().env(),
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0x2188000, 0x1000);
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return io_ds.local_addr<void>();
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}
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void platform_set_drvdata(struct platform_device *pdev, void *data)
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{
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pdev->dev.driver_data = data;
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}
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int of_get_phy_mode(struct device_node *np)
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{
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for (int i = 0; i < PHY_INTERFACE_MODE_MAX; i++)
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if (!Genode::strcmp("rgmii", phy_modes((phy_interface_t)i)))
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return i;
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return -ENODEV;
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}
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ktime_t ktime_get_real(void)
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{
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Lx::timer_update_jiffies();
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return ktime_get();
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}
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void timecounter_init(struct timecounter *tc, const struct cyclecounter *cc, u64 start_tstamp)
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{
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tc->cc = cc;
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tc->cycle_last = cc->read(cc);
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tc->nsec = start_tstamp;
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tc->mask = (1ULL << cc->shift) - 1;
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tc->frac = 0;
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}
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void *dma_alloc_coherent(struct device *dev, size_t size,
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dma_addr_t *dma_handle, gfp_t flag)
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{
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void *addr = Lx::Malloc::dma().alloc_large(size);
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static unsigned waechter = 0;
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ASSERT(!waechter++);
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*dma_handle = (dma_addr_t) addr;
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return addr;
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}
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void *dmam_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t gfp)
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{
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dma_addr_t dma_addr;
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void *addr = Lx::Malloc::dma().alloc(size, 12, &dma_addr);
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*dma_handle = dma_addr;
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return addr;
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}
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dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, size_t size,
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enum dma_data_direction)
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{
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dma_addr_t dma_addr = (dma_addr_t) Lx::Malloc::dma().phys_addr(cpu_addr);
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if (dma_addr == ~0UL)
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Genode::error(__func__, ": virtual address ", cpu_addr,
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" not registered for DMA");
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return dma_addr;
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}
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int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
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{
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return (dma_addr == ~0UL) ? 1 : 0;
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}
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void *dev_get_platdata(const struct device *dev)
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{
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return dev->platform_data;
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}
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int netif_running(const struct net_device *dev)
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{
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return dev->state & (1 << __LINK_STATE_START);
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}
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void netif_carrier_on(struct net_device *dev)
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{
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dev->state &= ~(1UL << __LINK_STATE_NOCARRIER);
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if (session) session->link_state(true);
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}
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void netif_carrier_off(struct net_device *dev)
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{
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dev->state |= 1UL << __LINK_STATE_NOCARRIER;
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if (session) session->link_state(false);
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}
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int netif_device_present(struct net_device * d)
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{
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TRACE;
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return 1;
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}
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int platform_get_irq(struct platform_device * d, unsigned int i)
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{
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if (i > 1) return -1;
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return 150 + i;
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}
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int devm_request_irq(struct device *dev, unsigned int irq, irq_handler_t handler, unsigned long irqflags, const char *devname, void *dev_id)
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{
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Lx::Irq::irq().request_irq(Platform::Device::create(Lx_kit::env().env(), irq), handler, dev_id);
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return 0;
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}
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struct clk *devm_clk_get(struct device *dev, const char *id)
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{
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static struct clk clocks[] {
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{ "ipg", 66*1000*1000 },
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{ "ahb", 132*1000*1000 },
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{ "enet_clk_ref", 500*1000*1000 } };
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for (unsigned i = 0; i < (sizeof(clocks) / sizeof(struct clk)); i++)
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if (Genode::strcmp(clocks[i].name, id) == 0)
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return &clocks[i];
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return NULL;
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}
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unsigned long clk_get_rate(struct clk * clk)
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{
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if (!clk) return 0;
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return clk->rate;
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}
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int is_valid_ether_addr(const u8 * a)
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{
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for (unsigned i = 0; i < ETH_ALEN; i++)
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if (a[i] != 0 && a[i] != 255) return 1;
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return 0;
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}
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static struct net_device * my_net_device = nullptr;
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int register_netdev(struct net_device * d)
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{
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my_net_device = d;
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d->state |= (1 << __LINK_STATE_START) | (1UL << __LINK_STATE_NOCARRIER);
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int err = d->netdev_ops->ndo_open(d);
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if (err) {
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Genode::error("ndo_open() failed: ", err);
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return err;
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}
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return 0;
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}
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struct net_device * fec_get_my_registered_net_device()
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{
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return my_net_device;
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}
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void *kmem_cache_alloc_node(struct kmem_cache *cache, gfp_t, int)
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{
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return (void*)cache->alloc();
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}
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struct page *alloc_pages(gfp_t gfp_mask, unsigned int order)
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{
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struct page *page = (struct page *)kzalloc(sizeof(struct page), 0);
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size_t size = PAGE_SIZE << order;
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page->addr = Lx::Malloc::dma().alloc(size, 12);
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if (!page->addr) {
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Genode::error("alloc_pages: ", size, " failed");
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kfree(page);
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return 0;
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}
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Addr_to_page_mapping::insert(page);
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atomic_set(&page->_count, 1);
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return page;
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}
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void get_page(struct page *page)
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{
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atomic_inc(&page->_count);
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}
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void *__alloc_page_frag(struct page_frag_cache *nc, unsigned int fragsz, gfp_t gfp_mask)
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{
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struct page *page = alloc_pages(GFP_LX_DMA, fragsz / PAGE_SIZE);
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if (!page) return nullptr;
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return page->addr;
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}
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void __free_page_frag(void *addr)
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{
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struct page *page = Addr_to_page_mapping::remove((unsigned long)addr);
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if (!atomic_dec_and_test(&page->_count))
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Genode::error("page reference count != 0");
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Lx::Malloc::dma().free(page->addr);
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kfree(page);
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}
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int driver_register(struct device_driver *drv)
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{
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new (Lx::Malloc::mem()) Driver(drv);
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return 0;
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}
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int device_add(struct device *dev)
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{
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if (dev->driver)
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return 0;
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/* foreach driver match and probe device */
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for (Driver *driver = Driver::list()->first(); driver; driver = driver->next())
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if (driver->match(dev)) {
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int ret = driver->probe(dev);
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if (!ret) return 0;
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}
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return 0;
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}
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void device_del(struct device *dev)
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{
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if (dev->driver && dev->driver->remove)
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dev->driver->remove(dev);
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}
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int device_register(struct device *dev)
|
||
|
{
|
||
|
return device_add(dev);
|
||
|
}
|
||
|
|
||
|
|
||
|
void reinit_completion(struct completion *work)
|
||
|
{
|
||
|
init_completion(work);
|
||
|
}
|
||
|
|
||
|
|
||
|
static void _completion_timeout(unsigned long t)
|
||
|
{
|
||
|
Lx::Task *task = (Lx::Task *)t;
|
||
|
task->unblock();
|
||
|
}
|
||
|
|
||
|
|
||
|
long __wait_completion(struct completion *work, unsigned long timeout)
|
||
|
{
|
||
|
timer_list t;
|
||
|
Lx::timer_update_jiffies();
|
||
|
unsigned long j = timeout ? jiffies + timeout : 0;
|
||
|
|
||
|
if (timeout) {
|
||
|
setup_timer(&t, _completion_timeout, (unsigned long)Lx::scheduler().current());
|
||
|
mod_timer(&t, timeout);
|
||
|
}
|
||
|
|
||
|
while (!work->done) {
|
||
|
|
||
|
if (j && j <= jiffies) {
|
||
|
lx_log(1, "timeout jiffies %lu", jiffies);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
Lx::Task *task = Lx::scheduler().current();
|
||
|
work->task = (void *)task;
|
||
|
task->block_and_schedule();
|
||
|
}
|
||
|
|
||
|
if (timeout)
|
||
|
del_timer(&t);
|
||
|
|
||
|
work->done = 0;
|
||
|
|
||
|
return j ? j - jiffies : 1;
|
||
|
}
|
||
|
|
||
|
|
||
|
int request_module(const char *format, ...)
|
||
|
{
|
||
|
TRACE;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
|
||
|
size_t strlcpy(char *dest, const char *src, size_t size)
|
||
|
{
|
||
|
size_t ret = Genode::strlen(src);
|
||
|
|
||
|
if (size) {
|
||
|
size_t len = (ret >= size) ? size - 1 : ret;
|
||
|
Genode::memcpy(dest, src, len);
|
||
|
dest[len] = '\0';
|
||
|
}
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
|
||
|
void local_irq_restore(unsigned long f) { }
|
||
|
|
||
|
|
||
|
unsigned long local_irq_save(unsigned long flags) { return flags; }
|
||
|
|
||
|
|
||
|
int pm_runtime_get_sync(struct device *dev)
|
||
|
{
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
|
||
|
void pm_runtime_mark_last_busy(struct device *dev) { }
|
||
|
|
||
|
|
||
|
int in_interrupt(void)
|
||
|
{
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
|
||
|
int pm_runtime_put_autosuspend(struct device *dev)
|
||
|
{
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
|
||
|
int dev_set_name(struct device *dev, const char *fmt, ...)
|
||
|
{
|
||
|
va_list args;
|
||
|
va_start(args, fmt);
|
||
|
|
||
|
Genode::String_console sc(dev->name, 32);
|
||
|
sc.vprintf(fmt, args);
|
||
|
|
||
|
va_end(args);
|
||
|
|
||
|
new (Lx::Malloc::mem()) Device(dev);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
|
||
|
int bus_register(struct bus_type *bus)
|
||
|
{
|
||
|
TRACE;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
|
||
|
struct device *bus_find_device_by_name(struct bus_type *bus, struct device *start, const char *name)
|
||
|
{
|
||
|
for (Device *dev = Device::list()->first(); dev; dev = dev->next()) {
|
||
|
if (Genode::strcmp(dev->dev->name, name) == 0)
|
||
|
return dev->dev;
|
||
|
}
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
|
||
|
void netif_napi_add(struct net_device *dev, struct napi_struct *napi,
|
||
|
int (*poll)(struct napi_struct *, int), int weight)
|
||
|
{
|
||
|
napi->dev = dev;
|
||
|
napi->poll = poll;
|
||
|
napi->state = NAPI_STATE_SCHED;
|
||
|
napi->weight = weight;
|
||
|
}
|
||
|
|
||
|
|
||
|
const char *dev_name(const struct device *dev)
|
||
|
{
|
||
|
return dev->name;
|
||
|
}
|
||
|
|
||
|
|
||
|
extern "C" void consume_skb(struct sk_buff *skb);
|
||
|
|
||
|
void dev_kfree_skb_any(struct sk_buff * sk)
|
||
|
{
|
||
|
consume_skb(sk);
|
||
|
}
|
||
|
|
||
|
|
||
|
void napi_enable(struct napi_struct *n)
|
||
|
{
|
||
|
clear_bit(NAPI_STATE_SCHED, &n->state);
|
||
|
clear_bit(NAPI_STATE_NPSVC, &n->state);
|
||
|
}
|
||
|
|
||
|
|
||
|
void napi_disable(struct napi_struct *n)
|
||
|
{
|
||
|
set_bit(NAPI_STATE_SCHED, &n->state);
|
||
|
set_bit(NAPI_STATE_NPSVC, &n->state);
|
||
|
}
|
||
|
|
||
|
|
||
|
void __napi_schedule(struct napi_struct *n)
|
||
|
{
|
||
|
if (session) session->unblock_rx_task(n);
|
||
|
}
|
||
|
|
||
|
|
||
|
bool napi_schedule_prep(struct napi_struct *n)
|
||
|
{
|
||
|
return !test_and_set_bit(NAPI_STATE_SCHED, &n->state);
|
||
|
}
|
||
|
|
||
|
|
||
|
void napi_complete(struct napi_struct *n)
|
||
|
{
|
||
|
clear_bit(NAPI_STATE_SCHED, &n->state);
|
||
|
}
|
||
|
|
||
|
|
||
|
unsigned long find_next_bit(const unsigned long *addr, unsigned long size, unsigned long offset)
|
||
|
{
|
||
|
unsigned long i = offset / BITS_PER_LONG;
|
||
|
offset -= (i * BITS_PER_LONG);
|
||
|
|
||
|
for (; offset < size; offset++)
|
||
|
if (addr[i] & (1UL << offset))
|
||
|
return offset + (i * BITS_PER_LONG);
|
||
|
|
||
|
return size;
|
||
|
}
|
||
|
|
||
|
|
||
|
gro_result_t napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
|
||
|
{
|
||
|
if (session) session->receive(skb);
|
||
|
|
||
|
dev_kfree_skb(skb);
|
||
|
return GRO_NORMAL;
|
||
|
}
|
||
|
|
||
|
|
||
|
void dma_unmap_single(struct device *dev, dma_addr_t addr, size_t size, enum dma_data_direction dir)
|
||
|
{
|
||
|
// FIXME
|
||
|
TRACE;
|
||
|
}
|
||
|
|
||
|
|
||
|
bool netif_queue_stopped(const struct net_device *dev)
|
||
|
{
|
||
|
// FIXME
|
||
|
TRACE;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
|
||
|
/*********************
|
||
|
** DUMMY FUNCTIONS **
|
||
|
*********************/
|
||
|
|
||
|
void clk_disable_unprepare(struct clk * c)
|
||
|
{
|
||
|
TRACE;
|
||
|
}
|
||
|
|
||
|
int clk_prepare_enable(struct clk * c)
|
||
|
{
|
||
|
TRACE;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
void device_initialize(struct device *dev)
|
||
|
{
|
||
|
TRACE;
|
||
|
}
|
||
|
|
||
|
int device_init_wakeup(struct device *dev, bool val)
|
||
|
{
|
||
|
TRACE;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
struct regulator *__must_check devm_regulator_get(struct device *dev, const char *id)
|
||
|
{
|
||
|
TRACE;
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
struct device_node *of_get_child_by_name( const struct device_node *node, const char *name)
|
||
|
{
|
||
|
TRACE;
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
struct netdev_queue *netdev_get_tx_queue(const struct net_device *dev, unsigned int index)
|
||
|
{
|
||
|
TRACE;
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
const void *of_get_property(const struct device_node *node, const char *name, int *lenp)
|
||
|
{
|
||
|
TRACE;
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
struct device_node *of_parse_phandle(const struct device_node *np, const char *phandle_name, int index)
|
||
|
{
|
||
|
TRACE;
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
bool of_phy_is_fixed_link(struct device_node *np)
|
||
|
{
|
||
|
TRACE;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
int pinctrl_pm_select_default_state(struct device *dev)
|
||
|
{
|
||
|
TRACE;
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
int pinctrl_pm_select_sleep_state(struct device *dev)
|
||
|
{
|
||
|
TRACE;
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
struct resource *platform_get_resource(struct platform_device * d, unsigned r1, unsigned r2)
|
||
|
{
|
||
|
TRACE;
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
void pm_runtime_enable(struct device *dev)
|
||
|
{
|
||
|
TRACE;
|
||
|
}
|
||
|
|
||
|
void pm_runtime_get_noresume(struct device *dev)
|
||
|
{
|
||
|
TRACE;
|
||
|
}
|
||
|
|
||
|
int pm_runtime_set_active(struct device *dev)
|
||
|
{
|
||
|
TRACE;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
void pm_runtime_set_autosuspend_delay(struct device *dev, int delay)
|
||
|
{
|
||
|
TRACE;
|
||
|
}
|
||
|
|
||
|
void pm_runtime_use_autosuspend(struct device *dev)
|
||
|
{
|
||
|
TRACE;
|
||
|
}
|
||
|
|
||
|
struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info, struct device *parent)
|
||
|
{
|
||
|
TRACE;
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
int regulator_enable(struct regulator * d)
|
||
|
{
|
||
|
TRACE;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
int of_driver_match_device(struct device *dev, const struct device_driver *drv)
|
||
|
{
|
||
|
TRACE;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
int class_register(struct class_ *cls)
|
||
|
{
|
||
|
TRACE;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
int try_module_get(struct module *mod)
|
||
|
{
|
||
|
TRACE;
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
struct device *get_device(struct device *dev)
|
||
|
{
|
||
|
TRACE;
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
int device_bind_driver(struct device *dev)
|
||
|
{
|
||
|
TRACE;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
void netif_tx_start_all_queues(struct net_device *dev)
|
||
|
{
|
||
|
TRACE;
|
||
|
}
|
||
|
|
||
|
void netif_tx_lock_bh(struct net_device *dev)
|
||
|
{
|
||
|
TRACE;
|
||
|
}
|
||
|
|
||
|
int device_set_wakeup_enable(struct device *dev, bool enable)
|
||
|
{
|
||
|
TRACE;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
void trace_consume_skb(struct sk_buff * sb)
|
||
|
{
|
||
|
TRACE;
|
||
|
}
|
||
|
|
||
|
void trace_kfree_skb(struct sk_buff * sb, void * p)
|
||
|
{
|
||
|
TRACE;
|
||
|
}
|
||
|
|
||
|
void netif_tx_unlock_bh(struct net_device *dev)
|
||
|
{
|
||
|
TRACE;
|
||
|
}
|
||
|
|
||
|
void netif_wake_queue(struct net_device * d)
|
||
|
{
|
||
|
TRACE;
|
||
|
}
|
||
|
|
||
|
bool netdev_uses_dsa(struct net_device *dev)
|
||
|
{
|
||
|
TRACE;
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
void dma_sync_single_for_device(struct device *dev, dma_addr_t addr,
|
||
|
size_t size, enum dma_data_direction dir)
|
||
|
{
|
||
|
TRACE;
|
||
|
}
|
||
|
|
||
|
void dma_sync_single_for_cpu(struct device *dev, dma_addr_t addr, size_t size,
|
||
|
enum dma_data_direction dir)
|
||
|
{
|
||
|
TRACE;
|
||
|
}
|
||
|
|
||
|
}
|