nuttx/drivers/pci/pci_drivers.c

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/****************************************************************************
* drivers/pci/pci_drivers.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <debug.h>
#include <nuttx/pci/pci.h>
#include <nuttx/pci/pci_qemu_edu.h>
#include <nuttx/pci/pci_qemu_test.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: pci_register_drivers
*
* Description:
* Register all the pci drivers to pci bus
*
****************************************************************************/
int pci_register_drivers(void)
{
int ret;
/* Initialization pci qemu test driver */
#ifdef CONFIG_PCI_QEMU_TEST
ret = pci_register_qemu_test_driver();
if (ret < 0)
{
pcierr("pci_register_qemu_test_driver failed, ret=%d\n", ret);
}
2024-01-22 11:12:09 +01:00
#endif
Various fixes for PCI work Squashed commits: 1. Porting prior PCI work in place of jailhouse code At this point the PCI enumeration works for x86_64 including over pci-pci bridges. Running QEMU with this configuration we see the bridge and the device on the bridge. It also detected the qemu test device qemu-system-x86_64 \ -cpu host,+pcid,+x2apic,+tsc-deadline,+xsave,+rdrand \ --enable-kvm -smp 1 -m 2G -cdrom boot.iso --nographic -no-reboot \ -device pci-testdev \ -device pci-bridge,id=bridge0,chassis_nr=2 \ -device e1000,bus=bridge0,addr=0x3 qemu_pci_init: Initializing PCI Bus pci_probe_device: [00:00.0] Found 8086:1237, class/revision 06000002 pci_probe_device: [00:01.1] Found 8086:7010, class/revision 01018000 pci_probe_device: [00:01.2] Found ffff:ffff, class/revision ffffffff pci_probe_device: [00:01.3] Found 8086:7113, class/revision 06800003 pci_probe_device: [00:01.4] Found ffff:ffff, class/revision ffffffff pci_probe_device: [00:01.5] Found ffff:ffff, class/revision ffffffff pci_probe_device: [00:01.6] Found ffff:ffff, class/revision ffffffff pci_probe_device: [00:01.7] Found ffff:ffff, class/revision ffffffff pci_probe_device: [00:02.0] Found 1234:1111, class/revision 03000002 pci_probe_device: [00:03.0] Found 8086:100e, class/revision 02000003 pci_probe_device: [00:04.0] Found 1b36:0005, class/revision 00ff0000 pci_probe_device: [00:04.0] Probing pci_check_pci_bridge: [00:05.0] Found Bridge pci_probe_device: [01:03.0] Found 8086:100e, class/revision 02000003 pci_probe_device: [00:05.0] Found 1b36:0001, class/revision 06040000 2. Remove unused CONFIG_PCI_MAX_BDF option 3. Add a workaround for Jailhouse pci scanning 4. Extend BAR parsing and handle PIO and MMIO for pci-testdev Signed-off-by: Brennan Ashton <bashton@brennanashton.com> 5. PCI: Add initial support for QEMU 'edu' test device Signed-off-by: Brennan Ashton <bashton@brennanashton.com> 6. Bring up PCI later in boot process Signed-off-by: Brennan Ashton <bashton@brennanashton.com> 7. Add ISR and DMA support to QEMU edu test pci device Signed-off-by: Brennan Ashton <bashton@brennanashton.com> 8. Fix bad function prototype definition in qemu_edu 9. intel64: Add a pci test configuration and instructions Signed-off-by: Brennan Ashton <bashton@brennanashton.com> 10. PCI: Fix issue in identification of 64bit bar Signed-off-by: Brennan Ashton <bashton@brennanashton.com>
2020-05-07 11:59:29 +02:00
/* Initialization qemu edu driver */
#ifdef CONFIG_PCI_QEMU_EDU
ret = pci_register_qemu_edu_driver();
if (ret < 0)
{
pcierr("pci_register_qemu_edu_driver failed, ret=%d\n", ret);
}
#endif
UNUSED(ret);
return ret;
}