[PATCH RESEND 1/1] drm/amd/display: add DCN support for ARM64
Ao Zhong
hacc1225 at gmail.com
Thu Oct 27 10:46:49 PDT 2022
Here are some lshw information:
hacc-arm64-pc
description: Desktop Computer
product: HUAWEIPGU-WBY0 (C233)
vendor: HUAWEI
version: D1060
serial:
width: 64 bits
capabilities: smbios-3.2.0 dmi-3.2.0 smp cp15_barrier setend swp tagged_addr_disabled
configuration: chassis=desktop family=HUAWEI sku=C233 uuid=
*-core
description: Motherboard
product: HUAWEIPGU-WBY0-PCB
vendor: HUAWEI
physical id: 0
version: D1060
serial:
slot: Null
*-firmware
description: BIOS
vendor: Byosoft
physical id: 2
version: 1.11
date: 02/07/2020
size: 128KiB
capabilities: pci pnp upgrade cdboot bootselect edd acpi biosbootspecification uefi
*-cache:0
description: L1 cache
physical id: 5
slot: L1 Instruction Cache
size: 1536KiB
capacity: 1536KiB
capabilities: synchronous internal write-back instruction
configuration: level=1
*-cache:1
description: L1 cache
physical id: 6
slot: L1 Data Cache
size: 1536KiB
capacity: 1536KiB
capabilities: synchronous internal write-back data
configuration: level=1
*-cache:2
description: L2 cache
physical id: 7
slot: L2 Cache
size: 12MiB
capacity: 12MiB
capabilities: synchronous internal varies unified
configuration: level=2
*-cache:3
description: L3 cache
physical id: 8
slot: L3 Cache
size: 24MiB
capacity: 24MiB
capabilities: synchronous internal varies unified
configuration: level=3
*-cpu
description: CPU
product: ARM (NULL)
vendor: HISILICON
physical id: 9
bus info: cpu at 0
version: HUAWEI Kunpeng920 3211K
serial: NULL
slot: CPU0
size: 2600MHz
capacity: 2600MHz
clock: 100MHz
capabilities: lm
configuration: cores=24 enabledcores=24 threads=24
*-memory
description: System Memory
physical id: a
slot: System board or motherboard
size: 64GiB
*-bank:0
description: DIMM DDR4 Synchronous 3200 MHz (0,3 ns)
product: F4-3200C22-32GRS
vendor: Unknown
physical id: 0
serial:
slot: SODIMM_B
size: 32GiB
width: 64 bits
clock: 3200MHz (0.3ns)
*-bank:1
description: DIMM DDR4 Synchronous 3200 MHz (0,3 ns)
product: F4-3200C22-32GRS
vendor: Unknown
physical id: 1
serial:
slot: SODIMM_A
size: 32GiB
width: 64 bits
clock: 3200MHz (0.3ns)
*-pci:0
description: PCI bridge
product: HiSilicon PCIe Root Port with Gen4
vendor: Huawei Technologies Co., Ltd.
physical id: 100
bus info: pci at 0000:00:00.0
version: 21
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:30 ioport:1000(size=4096) memory:e0c00000-e0efffff ioport:80080000000(size=6442450944)
*-pci
description: PCI bridge
product: Navi 10 XL Upstream Port of PCI Express Switch
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci at 0000:01:00.0
version: c7
width: 32 bits
clock: 33MHz
capabilities: pci pm pciexpress msi normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:29 memory:e0e00000-e0e03fff ioport:1000(size=4096) memory:e0c00000-e0dfffff ioport:80080000000(size=6442450944)
*-pci
description: PCI bridge
product: Navi 10 XL Downstream Port of PCI Express Switch
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci at 0000:02:00.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: pci pm pciexpress msi normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:37 ioport:1000(size=4096) memory:e0c00000-e0dfffff ioport:80080000000(size=6442450944)
*-display
description: VGA compatible controller
product: Navi 24 [Radeon RX 6400 / 6500 XT]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci at 0000:03:00.0
logical name: /dev/fb0
version: c7
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi vga_controller bus_master cap_list rom fb
configuration: depth=32 driver=amdgpu latency=0 mode=3440x1440 resolution=3440,1440 visual=truecolor xres=3440 yres=1440
resources: iomemory:8010-800f iomemory:8000-7fff irq:250 memory:80100000000-801ffffffff memory:80080000000-800801fffff ioport:1000(size=256) memory:e0c00000-e0cfffff memory:e0d00000-e0d1ffff
*-multimedia
description: Audio device
product: Navi 21/23 HDMI/DP Audio Controller
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0.1
bus info: pci at 0000:03:00.1
logical name: card0
logical name: /dev/snd/controlC0
logical name: /dev/snd/hwC0D0
logical name: /dev/snd/pcmC0D3p
logical name: /dev/snd/pcmC0D7p
version: 00
width: 32 bits
clock: 33MHz
capabilities: pm pciexpress msi bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:248 memory:e0d20000-e0d23fff
*-input:0
product: HDA ATI HDMI HDMI/DP,pcm=3
physical id: 0
logical name: input4
logical name: /dev/input/event4
*-input:1
product: HDA ATI HDMI HDMI/DP,pcm=7
physical id: 1
logical name: input5
logical name: /dev/input/event5
*-pci:1
description: PCI bridge
product: HiSilicon PCIe Root Port with Gen4
vendor: Huawei Technologies Co., Ltd.
physical id: 101
bus info: pci at 0000:00:08.0
version: 21
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:31 ioport:2000(size=4096) memory:e0f00000-e10fffff ioport:80018000000(size=2097152)
*-nvme
description: NVMe device
product: KINGSTON SNV2S1000G
vendor: Kingston Technology Company, Inc.
physical id: 0
bus info: pci at 0000:04:00.0
logical name: /dev/nvme0
version: SBI02102
serial:
width: 64 bits
clock: 33MHz
capabilities: nvme pm msi pciexpress msix nvm_express bus_master cap_list
configuration: driver=nvme latency=0 nqn=nqn.2021-03.com.kingston:nvme:nvm-subsystem-sn- state=live
resources: irq:29 memory:e0f00000-e0f03fff
*-namespace:0
description: NVMe disk
physical id: 0
logical name: hwmon1
*-namespace:1
description: NVMe disk
physical id: 2
logical name: /dev/ng0n1
*-namespace:2
description: NVMe disk
physical id: 1
bus info: nvme at 0:1
logical name: /dev/nvme0n1
size: 931GiB (1TB)
capabilities: gpt-1.00 partitioned partitioned:gpt
configuration: guid= logicalsectorsize=512 sectorsize=512 wwid=eui.00000000000000000026b7784e21fbc5
*-volume:0 UNCLAIMED
description: Windows FAT volume
vendor: mkfs.fat
physical id: 1
bus info: nvme at 0:1,1
version: FAT32
serial:
size: 98MiB
capacity: 99MiB
capabilities: boot fat initialized
configuration: FATs=2 filesystem=fat
*-volume:1
description: EFI partition
physical id: 2
bus info: nvme at 0:1,2
logical name: /dev/nvme0n1p2
logical name: /
logical name: /home
serial:
capacity: 866GiB
configuration: mount.fstype=btrfs mount.options=rw,relatime,compress=zstd:1,ssd,discard=async,space_cache=v2,subvolid=257,subvol=/@home state=mounted
*-volume:2
description: EFI partition
physical id: 3
bus info: nvme at 0:1,3
logical name: /dev/nvme0n1p3
logical name: /boot
serial:
capacity: 1023MiB
configuration: mount.fstype=xfs mount.options=rw,relatime,attr2,discard,inode64,logbufs=8,logbsize=32k,noquota state=mounted
*-volume:3
description: Linux swap volume
vendor: Linux
physical id: 4
bus info: nvme at 0:1,4
logical name: /dev/nvme0n1p4
version: 1
serial:
size: 64GiB
capacity: 64GiB
capabilities: nofs swap initialized
configuration: filesystem=swap pagesize=4096
*-pci:2
description: PCI bridge
product: HiSilicon PCIe Root Port with Gen4
vendor: Huawei Technologies Co., Ltd.
physical id: 102
bus info: pci at 0000:00:0a.0
version: 21
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:32 ioport:3000(size=4096) memory:e1100000-e12fffff ioport:80018200000(size=2097152)
*-nvme
description: NVMe device
product: KXG60ZNV512G TOSHIBA
vendor: Toshiba Corporation
physical id: 0
bus info: pci at 0000:05:00.0
logical name: /dev/nvme1
version: AGXA4103
serial:
width: 64 bits
clock: 33MHz
capabilities: nvme pciexpress pm msi msix nvm_express bus_master cap_list
configuration: driver=nvme latency=0 nqn=nqn.2017-03.jp.co.toshiba:KXG60ZNV512G TOSHIBA: state=live
resources: irq:29 memory:e1100000-e1103fff
*-namespace:0
description: NVMe disk
physical id: 0
logical name: hwmon0
*-namespace:1
description: NVMe disk
physical id: 2
logical name: /dev/ng1n1
*-namespace:2
description: NVMe disk
physical id: 1
bus info: nvme at 1:1
logical name: /dev/nvme1n1
size: 476GiB (512GB)
capabilities: gpt-1.00 partitioned partitioned:gpt
configuration: guid= logicalsectorsize=512 sectorsize=512 wwid=eui.00000000000000018ce38e0300176ffe
*-volume
description: EFI partition
physical id: 1
bus info: nvme at 1:1,1
logical name: /dev/nvme1n1p1
logical name: /mnt/SSD2
serial:
capacity: 476GiB
configuration: mount.fstype=btrfs mount.options=rw,relatime,compress=zstd:1,ssd,discard=async,space_cache=v2,subvolid=5,subvol=/ state=mounted
*-pci:3
description: PCI bridge
product: HiSilicon PCIe Root Port with Gen4
vendor: Huawei Technologies Co., Ltd.
physical id: c
bus info: pci at 0000:00:0c.0
version: 21
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:33 ioport:4000(size=4096) memory:e0000000-e0bfffff ioport:80018400000(size=2097152)
*-network UNCLAIMED
description: Network controller
product: Huawei Technologies Co., Ltd.
vendor: Huawei Technologies Co., Ltd.
physical id: 0
bus info: pci at 0000:06:00.0
version: 02
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress cap_list
configuration: latency=0
resources: memory:e0000000-e07fffff memory:e0800000-e0803fff
*-pci:4
description: PCI bridge
product: HiSilicon PCIe Root Port with Gen4
vendor: Huawei Technologies Co., Ltd.
physical id: d
bus info: pci at 0000:00:0d.0
version: 21
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:34 ioport:5000(size=4096) memory:e1300000-e14fffff ioport:80018600000(size=2097152)
*-usb
description: USB controller
product: uPD720202 USB 3.0 Host Controller
vendor: Renesas Technology Corp.
physical id: 0
bus info: pci at 0000:07:00.0
version: 02
width: 64 bits
clock: 33MHz
capabilities: pm msi msix pciexpress xhci bus_master cap_list
configuration: driver=xhci_hcd latency=0
resources: irq:29 memory:e1300000-e1301fff
*-usbhost:0
product: xHCI Host Controller
vendor: Linux 6.0.5-gentoo-arm64 xhci-hcd
physical id: 0
bus info: usb at 2
logical name: usb2
version: 6.00
capabilities: usb-2.00
configuration: driver=hub slots=2 speed=480Mbit/s
*-usb:0
description: USB hub
product: 4-Port USB 2.1 Hub
vendor: Generic
physical id: 1
bus info: usb at 2:1
version: 1.01
capabilities: usb-2.10
configuration: driver=hub slots=4 speed=480Mbit/s
*-usb:1 UNCLAIMED
description: Communication device
product: Goodix Fingerprint Device
vendor: Shenzhen Goodix Technology Co.,Ltd.
physical id: 2
bus info: usb at 2:2
version: 2.00
capabilities: usb-2.00
configuration: maxpower=100mA speed=12Mbit/s
*-usbhost:1
product: xHCI Host Controller
vendor: Linux 6.0.5-gentoo-arm64 xhci-hcd
physical id: 1
bus info: usb at 3
logical name: usb3
version: 6.00
capabilities: usb-3.00
configuration: driver=hub slots=2 speed=5000Mbit/s
*-usb
description: USB hub
product: 4-Port USB 3.1 Hub
vendor: Generic
physical id: 1
bus info: usb at 3:1
version: 1.01
capabilities: usb-3.10
configuration: driver=hub slots=4 speed=5000Mbit/s
*-pci:5
description: PCI bridge
product: HiSilicon PCIe Root Port with Gen4
vendor: Huawei Technologies Co., Ltd.
physical id: e
bus info: pci at 0000:00:0e.0
version: 21
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:35 ioport:6000(size=4096) memory:e1500000-e16fffff ioport:80018800000(size=2097152)
*-pci:6
description: PCI bridge
product: HiSilicon PCIe Root Port with Gen4
vendor: Huawei Technologies Co., Ltd.
physical id: f
bus info: pci at 0000:00:0f.0
version: 21
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:36 ioport:7000(size=4096) memory:e1700000-e18fffff ioport:80018a00000(size=2097152)
*-pci:7
description: PCI bridge
product: HiSilicon PCI-PCI Bridge
vendor: Huawei Technologies Co., Ltd.
physical id: 103
bus info: pci at 0000:74:00.0
version: 20
width: 64 bits
clock: 33MHz
capabilities: pci pciexpress pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: iomemory:1010-100f irq:0
*-pci:8
description: PCI bridge
product: HiSilicon PCI-PCI Bridge
vendor: Huawei Technologies Co., Ltd.
physical id: 104
bus info: pci at 0000:74:01.0
version: 20
width: 64 bits
clock: 33MHz
capabilities: pci pciexpress pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: iomemory:1010-100f irq:0 ioport:141000000(size=8388608)
*-generic UNCLAIMED
description: Unassigned class
product: SafeNet (wrong ID)
vendor: SafeNet (wrong ID)
physical id: 0
bus info: pci at 0000:76:00.0
version: ff
width: 32 bits
clock: 66MHz
capabilities: bus_master vga_palette cap_list
configuration: latency=255 maxlatency=255 mingnt=255
resources: memory:141000000-1413fffff memory:141400000-1417effff
*-sas:0 UNCLAIMED
description: Serial Attached SCSI controller
product: HiSilicon SAS 3.0 HBA
vendor: Huawei Technologies Co., Ltd.
physical id: b
bus info: pci at 0000:74:02.0
version: 21
width: 32 bits
clock: 33MHz
capabilities: sas pciexpress msi pm cap_list
configuration: latency=0
resources: memory:a2000000-a2007fff
*-sata
description: SATA controller
product: HiSilicon AHCI HBA
vendor: Huawei Technologies Co., Ltd.
physical id: 3
bus info: pci at 0000:74:03.0
version: 21
width: 32 bits
clock: 33MHz
capabilities: sata pciexpress msi pm ahci_1.0 bus_master cap_list
configuration: driver=ahci latency=0
resources: irq:235 memory:a2010000-a2010fff
*-sas:1 UNCLAIMED
description: Serial Attached SCSI controller
product: HiSilicon SAS 3.0 HBA
vendor: Huawei Technologies Co., Ltd.
physical id: 4
bus info: pci at 0000:74:04.0
version: 21
width: 32 bits
clock: 33MHz
capabilities: sas pciexpress msi pm cap_list
configuration: latency=0
resources: memory:a2008000-a200ffff
*-pci:9
description: PCI bridge
product: HiSilicon PCI-PCI Bridge
vendor: Huawei Technologies Co., Ltd.
physical id: 105
bus info: pci at 0000:78:00.0
version: 20
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:0
*-raid UNCLAIMED
description: RAID bus controller
product: HiSilicon RDE Engine
vendor: Huawei Technologies Co., Ltd.
physical id: 10
bus info: pci at 0000:78:01.0
version: 21
width: 64 bits
clock: 33MHz
capabilities: raid pciexpress msi pm cap_list
configuration: latency=0
resources: iomemory:20-1f memory:208000000-2083fffff
*-usb:0
description: USB controller
product: HiSilicon USB 1.1 Host Controller
vendor: Huawei Technologies Co., Ltd.
physical id: 11
bus info: pci at 0000:7a:00.0
version: 21
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm ohci bus_master cap_list
configuration: driver=ohci-pci latency=0
resources: iomemory:20-1f irq:249 memory:20c100000-20c100fff
*-usbhost
product: OHCI PCI host controller
vendor: Linux 6.0.5-gentoo-arm64 ohci_hcd
physical id: 1
bus info: usb at 6
logical name: usb6
version: 6.00
capabilities: usb-1.10
configuration: driver=hub slots=2 speed=12Mbit/s
*-usb:1
description: USB controller
product: HiSilicon USB 2.0 2-port Host Controller
vendor: Huawei Technologies Co., Ltd.
physical id: 1
bus info: pci at 0000:7a:01.0
version: 21
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm ehci bus_master cap_list
configuration: driver=ehci-pci latency=0
resources: iomemory:20-1f irq:237 memory:20c101000-20c101fff
*-usbhost
product: EHCI Host Controller
vendor: Linux 6.0.5-gentoo-arm64 ehci_hcd
physical id: 1
bus info: usb at 1
logical name: usb1
version: 6.00
capabilities: usb-2.00
configuration: driver=hub slots=2 speed=480Mbit/s
*-usb
description: Audio device
product: Generic USB Audio
vendor: Generic
physical id: 1
bus info: usb at 1:1
logical name: card1
logical name: /dev/snd/controlC1
logical name: /dev/snd/pcmC1D0c
logical name: /dev/snd/pcmC1D0p
logical name: /dev/snd/pcmC1D1c
logical name: /dev/snd/pcmC1D1p
logical name: /dev/snd/pcmC1D2c
logical name: /dev/snd/pcmC1D2p
logical name: input1
logical name: /dev/input/event1
version: 0.13
capabilities: usb-2.00 audio-control usb
configuration: driver=usbhid maxpower=100mA speed=480Mbit/s
*-usb:2
description: USB controller
product: HiSilicon USB 3.0 Host Controller
vendor: Huawei Technologies Co., Ltd.
physical id: 12
bus info: pci at 0000:7a:02.0
version: 21
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm xhci bus_master cap_list
configuration: driver=xhci_hcd latency=0
resources: iomemory:20-1f irq:246 memory:20c000000-20c0fffff
*-usbhost:0
product: xHCI Host Controller
vendor: Linux 6.0.5-gentoo-arm64 xhci-hcd
physical id: 0
bus info: usb at 4
logical name: usb4
version: 6.00
capabilities: usb-2.00
configuration: driver=hub slots=1 speed=480Mbit/s
*-usb
description: USB hub
product: 4-Port USB 2.1 Hub
vendor: Generic
physical id: 1
bus info: usb at 4:1
version: 1.01
capabilities: usb-2.10
configuration: driver=hub slots=4 speed=480Mbit/s
*-usb:0
description: USB hub
product: USB2.1 Hub
vendor: GenesysLogic
physical id: 1
bus info: usb at 4:1.1
version: 6.63
capabilities: usb-2.10
configuration: driver=hub maxpower=100mA slots=4 speed=480Mbit/s
*-usb:0
description: Bluetooth wireless interface
product: Bluetooth Radio
vendor: Realtek
physical id: 1
bus info: usb at 4:1.1.1
version: 2.00
serial:
capabilities: bluetooth usb-1.10
configuration: driver=btusb maxpower=500mA speed=12Mbit/s
*-usb:1
description: Bluetooth wireless interface
product: Bluetooth Radio
vendor: Realtek
physical id: 2
bus info: usb at 4:1.1.2
version: 2.00
serial:
capabilities: bluetooth usb-1.10
configuration: driver=btusb maxpower=500mA speed=12Mbit/s
*-usb:2
description: Video
product: FHD Camera Microphone: FHD Came
vendor: SunplusIT Inc
physical id: 3
bus info: usb at 4:1.1.3
logical name: card3
logical name: /dev/snd/controlC3
logical name: /dev/snd/pcmC3D0c
logical name: input6
logical name: /dev/input/event6
version: 10.14
serial: 01.00.00
capabilities: usb-2.00 usb
configuration: driver=snd-usb-audio maxpower=500mA speed=480Mbit/s
*-usb:3
description: USB hub
product: HighSpeed Hub
vendor: NEC Corp.
physical id: 4
bus info: usb at 4:1.1.4
version: 1.00
capabilities: usb-2.00
configuration: driver=hub maxpower=100mA slots=3 speed=480Mbit/s
*-usb
description: Keyboard
product: Topre Corporation HHKB Professional
vendor: Topre Corporation
physical id: 1
bus info: usb at 4:1.1.4.1
logical name: input3
logical name: /dev/input/event3
logical name: input3::capslock
logical name: input3::compose
logical name: input3::kana
logical name: input3::numlock
logical name: input3::scrolllock
version: 1.02
capabilities: usb-1.10 usb
configuration: driver=usbhid maxpower=100mA speed=12Mbit/s
*-usb:1
description: Human interface device
product: SAVITECH Bravo-X USB Audio
vendor: SAVITECH
physical id: 2
bus info: usb at 4:1.2
logical name: card2
logical name: /dev/snd/controlC2
logical name: /dev/snd/pcmC2D0p
logical name: /dev/snd/pcmC2D1p
logical name: input2
logical name: /dev/input/event2
version: 0.01
capabilities: usb-1.10 usb
configuration: driver=snd-usb-audio maxpower=100mA speed=12Mbit/s
*-usbhost:1
product: xHCI Host Controller
vendor: Linux 6.0.5-gentoo-arm64 xhci-hcd
physical id: 1
bus info: usb at 5
logical name: usb5
version: 6.00
capabilities: usb-3.00
configuration: driver=hub slots=1 speed=5000Mbit/s
*-usb
description: USB hub
product: 4-Port USB 3.1 Hub
vendor: Generic
physical id: 1
bus info: usb at 5:1
version: 1.01
capabilities: usb-3.10
configuration: driver=hub slots=4 speed=5000Mbit/s
*-usb
description: USB hub
product: USB3.1 Hub
vendor: GenesysLogic
physical id: 1
bus info: usb at 5:1.1
version: 6.63
capabilities: usb-3.20
configuration: driver=hub slots=4 speed=5000Mbit/s
*-generic
description: System peripheral
product: HiSilicon Embedded DMA Engine
vendor: Huawei Technologies Co., Ltd.
physical id: 13
bus info: pci at 0000:7b:00.0
version: 21
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm bus_master cap_list
configuration: driver=hisi_dma latency=0
resources: iomemory:10-f irq:39 memory:148800000-148803fff
*-pci:10
description: PCI bridge
product: HiSilicon PCI-PCI Bridge
vendor: Huawei Technologies Co., Ltd.
physical id: 0
bus info: pci at 0000:7c:00.0
version: 20
width: 64 bits
clock: 33MHz
capabilities: pci pciexpress pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: iomemory:1010-100f irq:0 ioport:120000000(size=2097152)
*-network
description: Ethernet interface
product: HNS GE/10GE/25GE RDMA Network Controller
vendor: Huawei Technologies Co., Ltd.
physical id: 0
bus info: pci at 0000:7d:00.0
logical name: enp125s0f0
version: 21
serial:
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pciexpress msix pm bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=hns3 driverversion=6.0.5-gentoo-arm64 duplex=full firmware=1.8.15.0 ip=192.168.1.150 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: iomemory:10-f iomemory:10-f irq:0 memory:120100000-12010ffff memory:120000000-1200fffff
*-pnp00:00
product: 16550A-compatible COM port
physical id: 14
capabilities: pnp
configuration: driver=serial
*-input:0
product: Power Button
physical id: 1
logical name: input0
logical name: /dev/input/event0
capabilities: platform
*-input:1
product: MX Vertical Mouse
physical id: 2
logical name: input7
logical name: /dev/input/event7
logical name: /dev/input/mouse0
capabilities: bluetooth
Am 27.10.22 um 16:29 schrieb Rodrigo Siqueira:
> Hi Ao/Arnd/Stephen/Nathan,
>
> Ao,
>
> Thanks a lot for this new patch.
>
> Since you have an ARM64 + AMD GPU, could you also run a couple of tests in your setup? If so, this is a good set of tests imho:
>
> 1. Check plug and unplug displays (let says 5x)
> 2. Change resolutions
> 3. (most wanted test) Could you run some IGT tests?
>
> About IGT, this is the official repository:
>
> https://gitlab.freedesktop.org/drm/igt-gpu-tools
>
> It should be easy to run IGT in your system. Follow a brief summary:
>
> 1. Install dependencies
>
> (maybe I missed something)
>
> Debian
> apt install flex bison pkg-config x11proto-dri2-dev python-docutils valgrind peg libpciaccess-dev libkmod-dev libprocps-dev libunwind-dev libdw-dev zlib1g-dev liblzma-dev libcairo-dev libpixman-1-dev libudev-dev libgsl-dev libasound2-dev libjson-c-dev libcurl4-openssl-dev libxrandr-dev libxv-dev meson libdrm-dev qemu-user qemu-user-static
>
> ArchLinux
> pacman -S gcc flex bison pkg-config libpciaccess kmod procps-ng libunwind libdwarf zlib xz cairo pixman libudev0-shim gsl alsa-lib xmlrpc-c json-c curl libxrandr libxv xorgproto python-docutils valgrind peg meson libdrm libtool make autoconf automake gtk-doc python-docutils git vim sudo
>
> 2. Build IGT
>
> meson build && ninja -C build
>
> 3. Turn off your GUI
>
> (You must run IGT without any GUI)
>
> sudo systemctl isolate multi-user.target
>
> After run this command, you should see the TTY.
>
> 4. Try to run this IGT test
>
> sudo ./build/tests/kms_flip
>
> And let me know if this test looks ok for you.
>
> On 10/27/22 06:52, Arnd Bergmann wrote:
>> On Thu, Oct 27, 2022, at 02:25, Ao Zhong wrote:
>>> After moving all FPU code to the DML folder, we can enable DCN support
>>> for the ARM64 platform. Remove the -mgeneral-regs-only CFLAG from the
>>> code in the DML folder that needs to use hardware FPU, and add a control
>>> mechanism for ARM Neon.
>
> I recommend you to add the following info in your commit:
>
> 1. System that you use to validate this change (CPU name, monitor, distro, wayland/X, etc).
> 2. Describe the set of tests that you tried.
>
>>>
>>> Signed-off-by: Ao Zhong <hacc1225 at gmail.com>
>>
>> There have been problems with stack frame overflows on this code
>> in the past, how much have you tested this with random configurations
>> to see if we still hit them in corner cases on arm64 that may not
>> show up on x86 or powerpc? I would expect to see a few more of them
>> for every new architecture port.
>
> Hi Arnd,
>
> We followed your suggestion to isolate all FPU code inside a single place (DML), and we recently completed most of this task. As a result, all FPU flags are only used in the DML code. I guess we might have issues in other non-x86 platforms, but this is something that we can improve over time, and from Ao message, it looks like that DCN is working on ARM.
>
> At this point, my main concern is that enabling ARM64 may causes some compilation issues that we did not reproduce yet. I cross-compiled amd-staging-drm-next + this patch with aarch64-linux-gnu-gcc version 12.2.0 and everything looks fine.
>
> Nathan/Stephen,
>
> Maybe I'm wrong, but I think you have access to some sort of CI that tests multiple builds with different compiles and configs, right? Is it possible to check this patch + amd-staging-drm-next in the CI to help us to anticipate any compilation issue if we merge this change?
>
> Or should we merge it and wait until it gets merged on the mainline? In case of a problem, we can easily revert a small patch like this, right?
>
> Thanks
> Siqueira
>
>>> index d0c6cf61c676..3cdd109189e0 100644
>>> --- a/drivers/gpu/drm/amd/display/dc/dml/Makefile
>>> +++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile
>>> @@ -33,6 +33,12 @@ ifdef CONFIG_PPC64
>>> dml_ccflags := -mhard-float -maltivec
>>> endif
>>>
>>> +ifdef CONFIG_ARM64
>>> +ifdef CONFIG_DRM_AMD_DC_DCN
>>> +dml_rcflags_arm64 := -mgeneral-regs-only
>>> +endif
>>> +endif
>>> +
>>
>>> CFLAGS_$(AMDDALPATH)/dc/dml/calcs/dcn_calcs.o := $(dml_ccflags)
>>> CFLAGS_$(AMDDALPATH)/dc/dml/calcs/dcn_calc_auto.o := $(dml_ccflags)
>>> CFLAGS_$(AMDDALPATH)/dc/dml/calcs/dcn_calc_math.o := $(dml_ccflags)
>>> -Wno-tautological-compare
>>> -CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/display_mode_vba.o := $(dml_rcflags)
>>> +CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/display_mode_vba.o :=
>>> $(dml_rcflags) $(dml_rcflags_arm64)
>>
>> Why do you need separate $(dml_rcflags) and $(dml_rcflags_arm64)
>> rather than adding -mgeneral-regs-only to $(dml_rcflags) directly?
>>
>> Arnd
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