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/*
* Copyright (C) 2020-2022 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#pragma once
#include "shared/source/helpers/non_copyable_or_moveable.h"
#include "shared/source/os_interface/linux/sys_calls.h"
#include "sysman/linux/os_sysman_imp.h"
#include "sysman/pci/os_pci.h"
namespace L0 {
class SysfsAccess;
class FsAccess;
class LinuxPciImp : public OsPci, NEO::NonCopyableOrMovableClass {
public:
ze_result_t getPciBdf(zes_pci_properties_t &pciProperties) override;
void getMaxLinkCaps(double &maxLinkSpeed, int32_t &maxLinkWidth) override;
ze_result_t getState(zes_pci_state_t *state) override;
ze_result_t getProperties(zes_pci_properties_t *properties) override;
bool resizableBarSupported() override;
bool resizableBarEnabled(uint32_t barIndex) override;
ze_result_t initializeBarProperties(std::vector<zes_pci_bar_properties_t *> &pBarProperties) override;
LinuxPciImp() = default;
LinuxPciImp(OsSysman *pOsSysman);
~LinuxPciImp() override = default;
protected:
SysfsAccess *pSysfsAccess = nullptr;
LinuxSysmanImp *pLinuxSysmanImp = nullptr;
std::unique_ptr<uint8_t[]> configMemory;
std::unique_ptr<uint8_t[]> uspConfigMemory;
void pciExtendedConfigRead();
void pciCardBusConfigRead();
decltype(&NEO::SysCalls::open) openFunction = NEO::SysCalls::open;
decltype(&NEO::SysCalls::close) closeFunction = NEO::SysCalls::close;
decltype(&NEO::SysCalls::pread) preadFunction = NEO::SysCalls::pread;
private:
static const std::string deviceDir;
static const std::string resourceFile;
static const std::string maxLinkSpeedFile;
static const std::string maxLinkWidthFile;
bool isLmemSupported = false;
uint32_t getDwordFromConfig(uint32_t pos) {
return configMemory[pos] | (configMemory[pos + 1] << 8) |
(configMemory[pos + 2] << 16) | (configMemory[pos + 3] << 24);
}
uint16_t getWordFromConfig(uint32_t pos, uint8_t *configMem) {
return configMem[pos] | (configMem[pos + 1] << 8);
}
uint8_t getByteFromConfig(uint32_t pos, uint8_t *configMem) {
return configMem[pos];
}
uint32_t getRebarCapabilityPos();
uint16_t getLinkCapabilityPos();
};
} // namespace L0
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