2020-05-04 11:44:11 +02:00
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/****************************************************************************
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2024-03-05 07:29:32 +01:00
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* drivers/pci/pci_drivers.c
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2020-05-04 11:44:11 +02:00
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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2024-03-05 07:29:32 +01:00
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#include <debug.h>
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2020-05-04 11:44:11 +02:00
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2024-03-05 07:29:32 +01:00
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#include <nuttx/pci/pci.h>
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2024-02-27 15:00:21 +01:00
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#include <nuttx/pci/pci_qemu_edu.h>
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2024-03-05 07:29:32 +01:00
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#include <nuttx/pci/pci_qemu_test.h>
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2020-05-04 11:44:11 +02:00
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/****************************************************************************
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2024-03-05 07:29:32 +01:00
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: pci_register_drivers
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*
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* Description:
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* Register all the pci drivers to pci bus
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*
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2020-05-04 11:44:11 +02:00
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****************************************************************************/
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2024-03-05 07:29:32 +01:00
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int pci_register_drivers(void)
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2020-05-04 11:44:11 +02:00
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{
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2024-03-05 07:29:32 +01:00
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int ret;
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2020-05-04 11:44:11 +02:00
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2024-03-05 07:29:32 +01:00
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/* Initialization pci qemu test driver */
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2020-05-04 11:44:11 +02:00
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2024-03-05 07:29:32 +01:00
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#ifdef CONFIG_PCI_QEMU_TEST
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ret = pci_register_qemu_test_driver();
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if (ret < 0)
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{
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pcierr("pci_register_qemu_test_driver failed, ret=%d\n", ret);
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}
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2024-01-22 11:12:09 +01:00
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#endif
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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
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2024-02-27 15:00:21 +01:00
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/* Initialization qemu edu driver */
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#ifdef CONFIG_PCI_QEMU_EDU
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ret = pci_register_qemu_edu_driver();
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if (ret < 0)
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{
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pcierr("pci_register_qemu_edu_driver failed, ret=%d\n", ret);
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}
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#endif
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2024-03-05 07:29:32 +01:00
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UNUSED(ret);
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return ret;
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2020-05-04 11:44:11 +02:00
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}
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