[PATCH v11 07/11] device-mapping: Introduce DMA range map, supplanting dma_pfn_offset

Nathan Chancellor natechancellor at gmail.com
Thu Sep 3 00:52:40 UTC 2020


On Wed, Sep 02, 2020 at 05:36:29PM -0700, Florian Fainelli wrote:
> 
> 
> On 9/2/2020 3:38 PM, Nathan Chancellor wrote:
> [snip]
> > > Hello Nathan,
> > > 
> > > Can you tell me how much memory your RPI has and if all of it is
> > 
> > This is the 4GB version.
> > 
> > > accessible by the PCIe device?  Could you also please include the DTS
> > > of the PCIe node?  IIRC, the RPI firmware does some mangling of the
> > > PCIe DT before Linux boots -- could you describe what is going on
> > > there?
> > 
> > Unfortunately, I am not familiar with how to get this information. If
> > you could provide some instructions for how to do so, I am more than
> > happy to. I am not very knowleagable about the inner working of the Pi,
> > I mainly use it as a test platform for making sure that LLVM does not
> > cause problems on real devices.
> 
> Can you bring the dtc application to your Pi root filesystem, and if so, can
> you run the following:
> 
> dtc -I fs -O dtb /proc/device-tree -f > /tmp/device.dtb

Sure, the result is attached.

> or cat /sys/firmware/fdt > device.dtb
> 
> and attach the resulting file?
> 
> > 
> > > Finally, can you attach the text of the full boot log?
> > 
> > I have attached a working and broken boot log. Thank you for the quick
> > response!
> 
> Is it possible for you to rebuild your kernel with CONFIG_MMC_DEBUG by any
> chance?

Of course. A new log is attached with the debug output from that config.

> I have a suspicion that this part of the DTS for the bcm2711.dtsi platform
> is at fault:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm/boot/dts/bcm2711.dtsi#n264
> 
> and the resulting dma-ranges parsing is just not working for reasons to be
> determined.
> --
> Florian

Let me know if you need anything else out of me.

Cheers,
Nathan
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[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd083]
[    0.000000] Linux version 5.9.0-rc3-next-20200902-dirty (nathan at ubuntu-n2-xlarge-x86) (ClangBuiltLinux clang version 12.0.0 (https://github.com/llvm/llvm-project.git b21ddded8f04fee925bbf9e6458347104b5b99eb), LLD 12.0.0 (https://github.com/llvm/llvm-project.git b21ddded8f04fee925bbf9e6458347104b5b99eb)) #1 SMP PREEMPT Wed Sep 2 17:41:42 MST 2020
[    0.000000] Machine model: Raspberry Pi 4 Model B Rev 1.2
[    0.000000] efi: UEFI not found.
[    0.000000] Reserved memory: created CMA memory pool at 0x0000000037400000, size 64 MiB
[    0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[    0.000000] NUMA: No NUMA configuration found
[    0.000000] NUMA: Faking a node at [mem 0x0000000000000000-0x00000000fbffffff]
[    0.000000] NUMA: NODE_DATA [mem 0xfb81f100-0xfb820fff]
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000000000000-0x000000003fffffff]
[    0.000000]   DMA32    [mem 0x0000000040000000-0x00000000fbffffff]
[    0.000000]   Normal   empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x000000003b3fffff]
[    0.000000]   node   0: [mem 0x0000000040000000-0x00000000fbffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x00000000fbffffff]
[    0.000000] percpu: Embedded 23 pages/cpu s54168 r8192 d31848 u94208
[    0.000000] Detected PIPT I-cache on CPU0
[    0.000000] CPU features: detected: EL2 vector hardening
[    0.000000] CPU features: kernel page table isolation forced ON by KASLR
[    0.000000] CPU features: detected: Kernel page table isolation (KPTI)
[    0.000000] ARM_SMCCC_ARCH_WORKAROUND_1 missing from firmware
[    0.000000] CPU features: detected: ARM errata 1165522, 1319367, or 1530923
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 996912
[    0.000000] Policy zone: DMA32
[    0.000000] Kernel command line:  dma.dmachans=0x71f5 bcm2709.boardrev=0xc03112 bcm2709.serial=0xb78d398 bcm2709.uart_clock=48000000 bcm2709.disk_led_gpio=42 bcm2709.disk_led_active_low=0 smsc95xx.macaddr=DC:A6:32:60:6C:87 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000  console=ttyS1,115200 console=tty1 root=PARTUUID=45a8dd8a-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait plymouth.ignore-serial-consoles
[    0.000000] Kernel parameter elevator= does not have any effect anymore.
[    0.000000] Please use sysfs to set IO scheduler for individual devices.
[    0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)
[    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] software IO TLB: mapped [mem 0x33400000-0x37400000] (64MB)
[    0.000000] Memory: 3812260K/4050944K available (14524K kernel code, 2636K rwdata, 7540K rodata, 1600K init, 615K bss, 173148K reserved, 65536K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000] rcu: 	RCU event tracing is enabled.
[    0.000000] rcu: 	RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=4.
[    0.000000] 	Trampoline variant of Tasks RCU enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] GIC: Using split EOI/Deactivate mode
[    0.000000] random: get_random_bytes called from start_kernel+0x1cc/0x3f4 with crng_init=0
[    0.000000] arch_timer: cp15 timer(s) running at 54.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0xc743ce346, max_idle_ns: 440795203123 ns
[    0.000006] sched_clock: 56 bits at 54MHz, resolution 18ns, wraps every 4398046511102ns
[    0.000195] Console: colour dummy device 80x25
[    0.000652] printk: console [tty1] enabled
[    0.000751] Calibrating delay loop (skipped), value calculated using timer frequency.. 108.00 BogoMIPS (lpj=216000)
[    0.000781] pid_max: default: 32768 minimum: 301
[    0.000866] LSM: Security Framework initializing
[    0.000997] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes, linear)
[    0.001081] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes, linear)
[    0.002840] rcu: Hierarchical SRCU implementation.
[    0.005054] EFI services will not be available.
[    0.005345] smp: Bringing up secondary CPUs ...
[    0.005851] Detected PIPT I-cache on CPU1
[    0.005911] CPU1: Booted secondary processor 0x0000000001 [0x410fd083]
[    0.006455] Detected PIPT I-cache on CPU2
[    0.006495] CPU2: Booted secondary processor 0x0000000002 [0x410fd083]
[    0.007007] Detected PIPT I-cache on CPU3
[    0.007046] CPU3: Booted secondary processor 0x0000000003 [0x410fd083]
[    0.007129] smp: Brought up 1 node, 4 CPUs
[    0.007193] SMP: Total of 4 processors activated.
[    0.007209] CPU features: detected: 32-bit EL0 Support
[    0.007224] CPU features: detected: CRC32 instructions
[    0.007240] CPU features: detected: 32-bit EL1 Support
[    0.030540] CPU: All CPU(s) started at EL2
[    0.030599] alternatives: patching kernel code
[    0.032564] devtmpfs: initialized
[    0.037682] KASLR enabled
[    0.038172] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.038206] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[    0.040116] pinctrl core: initialized pinctrl subsystem
[    0.041452] DMI not present or invalid.
[    0.042019] NET: Registered protocol family 16
[    0.043558] DMA: preallocated 512 KiB GFP_KERNEL pool for atomic allocations
[    0.043712] DMA: preallocated 512 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[    0.043990] DMA: preallocated 512 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[    0.044050] audit: initializing netlink subsys (disabled)
[    0.044242] audit: type=2000 audit(0.040:1): state=initialized audit_enabled=0 res=1
[    0.045301] thermal_sys: Registered thermal governor 'step_wise'
[    0.045309] thermal_sys: Registered thermal governor 'power_allocator'
[    0.045648] cpuidle: using governor menu
[    0.045945] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[    0.046047] ASID allocator initialised with 32768 entries
[    0.047600] Serial: AMBA PL011 UART driver
[    0.083025] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[    0.083061] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages
[    0.083078] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[    0.083094] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages
[    0.084421] cryptd: max_cpu_qlen set to 1000
[    0.087088] ACPI: Interpreter disabled.
[    0.089021] iommu: Default domain type: Translated 
[    0.089276] vgaarb: loaded
[    0.089611] SCSI subsystem initialized
[    0.090012] usbcore: registered new interface driver usbfs
[    0.090072] usbcore: registered new interface driver hub
[    0.090151] usbcore: registered new device driver usb
[    0.090330] usb_phy_generic phy: supply vcc not found, using dummy regulator
[    0.091142] pps_core: LinuxPPS API ver. 1 registered
[    0.091160] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti at linux.it>
[    0.091196] PTP clock support registered
[    0.091357] EDAC MC: Ver: 3.0.0
[    0.092760] FPGA manager framework
[    0.092865] Advanced Linux Sound Architecture Driver Initialized.
[    0.093701] clocksource: Switched to clocksource arch_sys_counter
[    0.093934] VFS: Disk quotas dquot_6.6.0
[    0.094010] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.094227] pnp: PnP ACPI: disabled
[    0.100879] NET: Registered protocol family 2
[    0.101392] tcp_listen_portaddr_hash hash table entries: 2048 (order: 3, 32768 bytes, linear)
[    0.101450] TCP established hash table entries: 32768 (order: 6, 262144 bytes, linear)
[    0.101659] TCP bind hash table entries: 32768 (order: 7, 524288 bytes, linear)
[    0.102140] TCP: Hash tables configured (established 32768 bind 32768)
[    0.102352] UDP hash table entries: 2048 (order: 4, 65536 bytes, linear)
[    0.102422] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes, linear)
[    0.102628] NET: Registered protocol family 1
[    0.103133] RPC: Registered named UNIX socket transport module.
[    0.103152] RPC: Registered udp transport module.
[    0.103165] RPC: Registered tcp transport module.
[    0.103178] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.103199] PCI: CLS 0 bytes, default 64
[    0.104385] hw perfevents: enabled with armv8_cortex_a72 PMU driver, 7 counters available
[    0.104540] kvm [1]: IPA Size Limit: 44bits
[    0.105680] kvm [1]: vgic interrupt IRQ1
[    0.105867] kvm [1]: Hyp mode initialized successfully
[    0.107728] Initialise system trusted keyrings
[    0.107883] workingset: timestamp_bits=44 max_order=20 bucket_order=0
[    0.114719] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.115521] NFS: Registering the id_resolver key type
[    0.115561] Key type id_resolver registered
[    0.115575] Key type id_legacy registered
[    0.115680] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.115865] 9p: Installing v9fs 9p2000 file system support
[    0.178003] Key type asymmetric registered
[    0.178022] Asymmetric key parser 'x509' registered
[    0.178076] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245)
[    0.178095] io scheduler mq-deadline registered
[    0.178108] io scheduler kyber registered
[    0.190559] EINJ: ACPI disabled.
[    0.208669] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    0.210741] printk: console [ttyS1] disabled
[    0.210844] fe215040.serial: ttyS1 at MMIO 0xfe215040 (irq = 18, base_baud = 24999999) is a 16550
[    1.116050] printk: console [ttyS1] enabled
[    1.121777] SuperH (H)SCI(F) driver initialized
[    1.127007] msm_serial: driver initialized
[    1.132787] cacheinfo: Unable to detect cache hierarchy for CPU 0
[    1.147454] loop: module loaded
[    1.151881] bcm2835-power bcm2835-power: Broadcom BCM2835 power domains driver
[    1.160186] megasas: 07.714.04.00-rc1
[    1.168988] libphy: Fixed MDIO Bus: probed
[    1.174593] tun: Universal TUN/TAP device driver, 1.6
[    1.180565] thunder_xcv, ver 1.0
[    1.183908] thunder_bgx, ver 1.0
[    1.187241] nicpf, ver 1.0
[    1.191216] hclge is initializing
[    1.194649] hns3: Hisilicon Ethernet Network Driver for Hip08 Family - version
[    1.202014] hns3: Copyright (c) 2017 Huawei Corporation.
[    1.207482] e1000: Intel(R) PRO/1000 Network Driver
[    1.212455] e1000: Copyright (c) 1999-2006 Intel Corporation.
[    1.218347] e1000e: Intel(R) PRO/1000 Network Driver
[    1.223407] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[    1.229481] igb: Intel(R) Gigabit Ethernet Network Driver
[    1.234987] igb: Copyright (c) 2007-2014 Intel Corporation.
[    1.240693] igbvf: Intel(R) Gigabit Virtual Function Network Driver
[    1.247076] igbvf: Copyright (c) 2009 - 2012 Intel Corporation.
[    1.253477] sky2: driver version 1.30
[    1.258420] VFIO - User Level meta-driver version: 0.3
[    1.265684] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.272366] ehci-pci: EHCI PCI platform driver
[    1.276933] ehci-platform: EHCI generic platform driver
[    1.282396] ehci-orion: EHCI orion driver
[    1.286594] ehci-exynos: EHCI Exynos driver
[    1.290961] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    1.297274] ohci-pci: OHCI PCI platform driver
[    1.301842] ohci-platform: OHCI generic platform driver
[    1.307292] ohci-exynos: OHCI Exynos driver
[    1.312095] usbcore: registered new interface driver usb-storage
[    1.321120] i2c /dev entries driver
[    1.330063] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer
[    1.338533] sdhci: Secure Digital Host Controller Interface driver
[    1.344845] sdhci: Copyright(c) Pierre Ossman
[    1.349891] Synopsys Designware Multimedia Card Interface Driver
[    1.357122] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.375006] ledtrig-cpu: registered to indicate activity on CPUs
[    1.382894] usbcore: registered new interface driver usbhid
[    1.388580] usbhid: USB HID core driver
[    1.393564] bcm2835-mbox fe00b880.mailbox: mailbox enabled
[    1.403535] NET: Registered protocol family 17
[    1.408294] 9pnet: Installing 9P2000 support
[    1.412713] Key type dns_resolver registered
[    1.417430] registered taskstats version 1
[    1.421626] Loading compiled-in X.509 certificates
[    1.431456] fe201000.serial: ttyAMA0 at MMIO 0xfe201000 (irq = 16, base_baud = 0) is a PL011 rev2
[    1.440702] serial serial0: tty port ttyAMA0 registered
[    1.462488] raspberrypi-firmware soc:firmware: Attached to firmware from 2020-08-24T18:50:56
[    1.503490] dwc2 fe980000.usb: supply vusb_d not found, using dummy regulator
[    1.510942] dwc2 fe980000.usb: supply vusb_a not found, using dummy regulator
[    1.619058] dwc2 fe980000.usb: EPs: 8, dedicated fifos, 4080 entries in SPRAM
[    1.631093] sdhci-iproc fe300000.sdhci: allocated mmc-pwrseq
[    1.656482] mmc0: Got data interrupt 0x00100000 even though no data operation was in progress.
[    1.665246] mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
[    1.671799] mmc0: sdhci: Sys addr:  0x00000000 | Version:  0x00009902
[    1.678349] mmc0: sdhci: Blk size:  0x00000000 | Blk cnt:  0x00000000
[    1.684899] mmc0: sdhci: Argument:  0x00000000 | Trn mode: 0x00000000
[    1.691448] mmc0: sdhci: Present:   0x01ff0000 | Host ctl: 0x00000000
[    1.697998] mmc0: sdhci: Power:     0x0000000f | Blk gap:  0x00000000
[    1.704548] mmc0: sdhci: Wake-up:   0x00000000 | Clock:    0x00003943
[    1.711097] mmc0: sdhci: Timeout:   0x00000000 | Int stat: 0x00000000
[    1.717646] mmc0: sdhci: Int enab:  0x00ff0003 | Sig enab: 0x00ff0003
[    1.724195] mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000
[    1.730745] mmc0: sdhci: Caps:      0x00000000 | Caps_1:   0x00000000
[    1.737293] mmc0: sdhci: Cmd:       0x00000000 | Max curr: 0x00000001
[    1.743842] mmc0: sdhci: Resp[0]:   0x00000000 | Resp[1]:  0x00000000
[    1.750390] mmc0: sdhci: Resp[2]:   0x00000000 | Resp[3]:  0x00000000
[    1.756939] mmc0: sdhci: Host ctl2: 0x00000000
[    1.761456] mmc0: sdhci: ============================================
[    1.780655] mmc0: SDHCI controller on fe300000.sdhci [fe300000.sdhci] using PIO
[    1.805771] mmc0: queuing unknown CIS tuple 0x80 (2 bytes)
[    1.813060] mmc0: queuing unknown CIS tuple 0x80 (3 bytes)
[    1.820345] mmc0: queuing unknown CIS tuple 0x80 (3 bytes)
[    1.828965] mmc0: queuing unknown CIS tuple 0x80 (7 bytes)
[    1.836403] mmc0: queuing unknown CIS tuple 0x80 (3 bytes)
[    1.845718] mmc1: SDHCI controller on fe340000.emmc2 [fe340000.emmc2] using ADMA
[    1.855465] ALSA device list:
[    1.858526]   No soundcards found.
[    1.862198] Waiting for root device PARTUUID=45a8dd8a-02...
[    1.902568] mmc1: unrecognised SCR structure version 4
[    1.907898] mmc1: error -22 whilst initialising SD card
[    1.913254] random: fast init done
[    1.929590] mmc0: new high speed SDIO card at address 0001
[    1.992339] mmc1: unrecognised SCR structure version 2
[    1.997586] mmc1: error -22 whilst initialising SD card
[    2.073236] mmc1: unrecognised SCR structure version 4
[    2.078483] mmc1: error -22 whilst initialising SD card
[    2.170487] mmc1: unrecognised SCR structure version 4
[    2.175734] mmc1: error -22 whilst initialising SD card
[    3.257662] mmc1: unrecognised SCR structure version 4
[    3.262908] mmc1: error -22 whilst initialising SD card
[    3.333247] mmc1: unrecognised SCR structure version 4
[    3.338491] mmc1: error -22 whilst initialising SD card
[    3.414071] mmc1: unrecognised SCR structure version 4
[    3.419316] mmc1: error -22 whilst initialising SD card
[    3.511237] mmc1: unrecognised SCR structure version 4
[    3.516480] mmc1: error -22 whilst initialising SD card
[    4.601638] mmc1: unrecognised SCR structure version 4
[    4.606884] mmc1: error -22 whilst initialising SD card
[    4.677201] mmc1: unrecognised SCR structure version 4
[    4.682446] mmc1: error -22 whilst initialising SD card
[    4.758107] mmc1: unrecognised SCR structure version 4
[    4.763350] mmc1: error -22 whilst initialising SD card
[    4.855243] mmc1: unrecognised SCR structure version 4
[    4.860490] mmc1: error -22 whilst initialising SD card
[    5.945660] mmc1: unrecognised SCR structure version 4
[    5.950907] mmc1: error -22 whilst initialising SD card
[    6.021221] mmc1: unrecognised SCR structure version 4
[    6.026465] mmc1: error -22 whilst initialising SD card
[    6.102080] mmc1: unrecognised SCR structure version 4
[    6.107324] mmc1: error -22 whilst initialising SD card
[    6.199241] mmc1: unrecognised SCR structure version 4
[    6.204484] mmc1: error -22 whilst initialising SD card
[    7.289614] mmc1: unrecognised SCR structure version 4
[    7.294860] mmc1: error -22 whilst initialising SD card
[    7.365166] mmc1: unrecognised SCR structure version 4
[    7.370409] mmc1: error -22 whilst initialising SD card
[    7.446022] mmc1: unrecognised SCR structure version 4
[    7.451265] mmc1: error -22 whilst initialising SD card
[    7.543170] mmc1: unrecognised SCR structure version 4
[    7.548413] mmc1: error -22 whilst initialising SD card
[    8.636441] mmc1: unrecognised SCR structure version 4
[    8.641697] mmc1: error -22 whilst initialising SD card
[    8.711995] mmc1: unrecognised SCR structure version 4
[    8.717238] mmc1: error -22 whilst initialising SD card
[    8.792928] mmc1: unrecognised SCR structure version 4
[    8.798171] mmc1: error -22 whilst initialising SD card
[    8.890158] mmc1: unrecognised SCR structure version 4
[    8.895402] mmc1: error -22 whilst initialising SD card
[    9.977661] mmc1: unrecognised SCR structure version 4
[    9.982907] mmc1: error -22 whilst initialising SD card
[   10.053223] mmc1: unrecognised SCR structure version 4
[   10.058467] mmc1: error -22 whilst initialising SD card
[   10.134126] mmc1: unrecognised SCR structure version 4
[   10.139370] mmc1: error -22 whilst initialising SD card
[   10.231286] mmc1: unrecognised SCR structure version 4
[   10.236528] mmc1: error -22 whilst initialising SD card
[   11.321615] mmc1: unrecognised SCR structure version 4
[   11.326861] mmc1: error -22 whilst initialising SD card
[   11.397149] mmc1: unrecognised SCR structure version 4
[   11.402394] mmc1: error -22 whilst initialising SD card
[   11.478010] mmc1: unrecognised SCR structure version 4
[   11.483252] mmc1: error -22 whilst initialising SD card
[   11.575174] mmc1: unrecognised SCR structure version 4
[   11.580416] mmc1: error -22 whilst initialising SD card


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