kernel/dev/interrupt/arm_gic/v3/arm_gicv3_pcie.cpp

// Copyright 2018 The Fuchsia Authors
// Copyright (c) 2012-2015 Travis Geiselbrecht
//
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file or at
// https://opensource.org/licenses/MIT

#if WITH_KERNEL_PCIE
#include <dev/pcie_bus_driver.h>
#include <dev/pcie_platform.h>
#include <dev/pcie_root.h>
#include <inttypes.h>
#include <lk/init.h>
#include <pdev/driver.h>
#include <pdev/interrupt.h>
#include <trace.h>
#include <zircon/boot/driver-config.h>
#include <zircon/types.h>

static void arm_gicv3_pcie_init(const void* driver_data, uint32_t length) {
    ASSERT(length >= sizeof(dcfg_arm_gicv3_driver_t));
    __UNUSED const dcfg_arm_gicv3_driver_t* driver =
        reinterpret_cast<const dcfg_arm_gicv3_driver_t*>(driver_data);

    // When GICv3 MSI support is added, initialize here

    // Initialize the PCI platform, claiming no MSI support
    static NoMsiPciePlatformInterface platform_pcie_support;

    zx_status_t res = PcieBusDriver::InitializeDriver(platform_pcie_support);
    if (res != ZX_OK) {
        TRACEF("Failed to initialize PCI bus driver (res %d).  "
               "PCI will be non-functional.\n",
               res);
    }
}

LK_PDEV_INIT(arm_gicv3_pcie_init, KDRV_ARM_GIC_V3, arm_gicv3_pcie_init, LK_INIT_LEVEL_PLATFORM);

#endif // if WITH_KERNEL_PCIE