| Message ID | 20220118184448.852996-1-farosas@linux.ibm.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | target/ppc: powerpc_excp improvements [40x] (3/n) | expand |
On 1/18/22 19:44, Fabiano Rosas wrote: > changes from v1: > > - New patch that renames MSR_POW to MSR_WE for the 405. > > - New patch that adds just MSR_ME to the msr_mask. > > - New patches to cleanup exceptions I missed the first time around. > > - Dropped the patch that added all the missing MSR bits. We have an > issue when two different MSR bits share the same number in different > CPUs. Described in v1 here: > > https://lists.nongnu.org/archive/html/qemu-ppc/2022-01/msg00503.html > > - Dropped the patch that adds missing exception vectors because Linux > clearly cannot handle them. And I don't have access to real hardware > to confirm some of the questions raised, so let's keep things as they > are. > > - Kept the split in two patches. One that copies powerpc_excp_legacy > and other that does the changes. > > Based on legoater/ppc-7.0 > > With only the fixes from the above branch, the ref405ep machine boots > until the shell. This series doesn't change that. FYI, with a couple of extra patches, adding a hotfoot variant machine and its PCI controller, network comes up with a rtl8139 and a virtio-net-pci devices. I2C seems fine. The only open issue is the timer which is twice too fast. I will merge this series, unless Fabiano wants to send a v3, and the patch fixing the TLBs. The patches for the hotfoot variant can come later. Thanks, C. qemu-system-ppc -M ref405ep-hotfoot -serial null -kernel /path/to/linux.git/build_ppc40x/arch/powerpc/boot/cuImage.hotfoot.elf -initrd /home/legoater/work/buildroot/images//qemu_ppc_ref405ep-latest//rootfs.cpio -net nic,model=virtio-net-pci,netdev=net0,addr=3 -netdev bridge,id=net0,helper=/usr/libexec/qemu-bridge-helper,br=virbr0 -device ds1338,address=0x68 -serial mon:stdio -nographic Memory <- <0x0 0x8000000> (128MB) CPU clock-frequency <- 0x7f28155 (133MHz) CPU timebase-frequency <- 0x7f28155 (133MHz) /plb: clock-frequency <- 1fca055 (33MHz) /plb/opb: clock-frequency <- 1fca055 (33MHz) /plb/ebc: clock-frequency <- 1fca055 (33MHz) /plb/opb/serial@ef600300: clock-frequency <- 1d1079 (2MHz) /plb/opb/serial@ef600400: clock-frequency <- 1d1079 (2MHz) ethernet0: local-mac-address <- 00:00:00:00:00:00 ethernet1: local-mac-address <- 00:00:07:f2:81:55 Fixing devtree for 4M Flash zImage starting: loaded at 0x00700000 (sp: 0xfff7ff98) Decompression error: 'Not a gzip file' No valid compressed data found, assume uncompressed data Allocating 0x613ee0 bytes for kernel... 0x5f391c bytes of uncompressed data copied Using loader supplied ramdisk at 0x1800000-0x1c6d800 initrd head: 0x30373037 Linux/PowerPC load: Finalizing device tree... flat tree at 0xd1a960 Linux version 5.16.0-11200-g1d1df41c5a33-dirty (legoater@yukon) (powerpc64-linux-gnu-gcc (GCC) 11.2.1 20210728 (Red Hat Cross 11.2.1-1), GNU ld version 2.35.2-1.fc34) #127 Thu Jan 20 10:19:47 CET 2022 Found initrd at 0xc1800000:0xc1c6d800 Using PowerPC 40x Platform machine description printk: bootconsole [udbg0] enabled ----------------------------------------------------- phys_mem_size = 0x8000000 dcache_bsize = 0x20 icache_bsize = 0x20 cpu_features = 0x0000000000000100 possible = 0x0000000000000100 always = 0x0000000000000100 cpu_user_features = 0x86000000 0x00000000 mmu_features = 0x00000004 ----------------------------------------------------- Zone ranges: Normal [mem 0x0000000000000000-0x0000000007ffffff] Movable zone start for each node Early memory node ranges node 0: [mem 0x0000000000000000-0x0000000007ffffff] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff] MMU: Allocated 1088 bytes of context maps for 255 contexts Built 1 zonelists, mobility grouping on. Total pages: 32512 Kernel command line: Dentry cache hash table entries: 16384 (order: 4, 65536 bytes, linear) Inode-cache hash table entries: 8192 (order: 3, 32768 bytes, linear) mem auto-init: stack:off, heap alloc:off, heap free:off Kernel virtual memory layout: * 0xffbdf000..0xfffff000 : fixmap * 0xc9000000..0xffbdf000 : vmalloc & ioremap Memory: 119108K/131072K available (4372K kernel code, 248K rwdata, 1308K rodata, 168K init, 127K bss, 11964K reserved, 0K cma-reserved) SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 NR_IRQS: 512, nr_irqs: 512, preallocated irqs: 16 UIC0 (32 IRQ sources) at DCR 0xc0 clocksource: timebase: mask: 0xffffffffffffffff max_cycles: 0x1ec031343f, max_idle_ns: 440795203544 ns clocksource: timebase mult[7800000] shift[24] registered pid_max: default: 32768 minimum: 301 Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) devtmpfs: initialized random: get_random_u32 called from bucket_table_alloc.isra.0+0x74/0x170 with crng_init=0 clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns futex hash table entries: 256 (order: -1, 3072 bytes, linear) NET: Registered PF_NETLINK/PF_ROUTE protocol family DMA: preallocated 128 KiB GFP_KERNEL pool for atomic allocations thermal_sys: Registered thermal governor 'step_wise' PCI host bridge /plb/pci@ec000000 (primary) ranges: MEM 0x0000000080000000..0x000000009fffffff -> 0x0000000080000000 IO 0x00000000e8000000..0x00000000e800ffff -> 0x0000000000000000 4xx PCI DMA offset set to 0x00000000 4xx PCI DMA window base to 0x0000000000000000 DMA window size 0x0000000080000000 PCI: Probing PCI hardware PCI host bridge to bus 0008:00 pci_bus 0008:00: root bus resource [io 0x0000-0xffff] pci_bus 0008:00: root bus resource [mem 0x80000000-0x9fffffff] pci_bus 0008:00: root bus resource [bus 00-ff] pci_bus 0008:00: busn_res: [bus 00-ff] end is updated to ff pci 0008:00:00.0: [1014:027f] type 00 class 0x068000 PCI: Hiding 4xx host bridge resources 0008:00:00.0 pci 0008:00:03.0: [1af4:1000] type 00 class 0x020000 pci 0008:00:03.0: reg 0x10: [io 0x0000-0x001f] pci 0008:00:03.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref] pci 0008:00:03.0: reg 0x30: [mem 0x00000000-0x0003ffff pref] pci_bus 0008:00: busn_res: [bus 00-ff] end is updated to 00 pci 0008:00:03.0: BAR 6: assigned [mem 0x80000000-0x8003ffff pref] pci 0008:00:03.0: BAR 4: assigned [mem 0x80040000-0x80043fff 64bit pref] pci 0008:00:03.0: BAR 0: assigned [io 0x1000-0x101f] pci_bus 0008:00: resource 4 [io 0x0000-0xffff] pci_bus 0008:00: resource 5 [mem 0x80000000-0x9fffffff] vgaarb: loaded pps_core: LinuxPPS API ver. 1 registered pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it> PTP clock support registered clocksource: Switched to clocksource timebase NET: Registered PF_INET protocol family IP idents hash table entries: 2048 (order: 2, 16384 bytes, linear) tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear) TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear) TCP bind hash table entries: 1024 (order: 0, 4096 bytes, linear) TCP: Hash tables configured (established 1024 bind 1024) UDP hash table entries: 256 (order: 0, 4096 bytes, linear) UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear) NET: Registered PF_UNIX/PF_LOCAL protocol family PCI: CLS 0 bytes, default 32 Trying to unpack rootfs image as initramfs... workingset: timestamp_bits=30 max_order=15 bucket_order=0 io scheduler mq-deadline registered io scheduler kyber registered virtio-pci 0008:00:03.0: enabling device (0000 -> 0003) Freeing initrd memory: 4532K Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled printk: console [ttyS0] disabled serial8250.0: ttyS0 at MMIO 0xef600400 (irq = 16, base_baud = 119047) is a 16550A printk: console [ttyS0] enabled printk: console [ttyS0] enabled printk: bootconsole [udbg0] disabled printk: bootconsole [udbg0] disabled serial8250.0: ttyS1 at MMIO 0xef600300 (irq = 17, base_baud = 119047) is a 16550A printk: console [ttyS0] disabled printk: console [ttyS0] enabled ef600300.serial: ttyS1 at MMIO 0xef600300 (irq = 17, base_baud = 119047) is a 16550 brd: module loaded e1000: Intel(R) PRO/1000 Network Driver e1000: Copyright (c) 1999-2006 Intel Corporation. i2c_dev: i2c /dev entries driver rtc-ds1307 0-0068: registered as rtc0 rtc-ds1307 0-0068: setting system clock to 2022-01-20T09:22:34 UTC (1642670554) ibm-iic ef600500.i2c: using standard (100 kHz) mode lm75: probe of 0-004a failed with error -121 NET: Registered PF_PACKET protocol family drmem: No dynamic reconfiguration memory found Freeing unused kernel image (initmem) memory: 168K Kernel memory protection not selected by kernel config. Run /init as init process Starting syslogd: OK Starting klogd: OK Running sysctl: OK Saving random seed: random: dd: uninitialized urandom read (512 bytes read) OK Starting network: udhcpc: started, v1.34.1 random: mktemp: uninitialized urandom read (6 bytes read) udhcpc: broadcasting discover udhcpc: broadcasting select for 192.168.199.76, server 192.168.199.1 udhcpc: lease of 192.168.199.76 obtained from 192.168.199.1, lease time 3600 deleting routers random: mktemp: uninitialized urandom read (6 bytes read) adding dns 192.168.199.1 OK Welcome to Buildroot buildroot login: root # cat /proc/cpuinfo processor : 0 cpu : 405EP clock : 133.333333MHz revision : 9.80 (pvr 5121 0950) bogomips : 266.66 timebase : 133333333 platform : PowerPC 40x Platform model : est,hotfoot Memory : 128 MB # cat /proc/interrupts CPU0 16: 1552 UIC 1 Level ttyS0 23: 12 UIC 2 Level IBM IIC 27: 8 UIC 27 Level virtio0 LOC: 52166 Local timer interrupts for timer event device BCT: 0 Broadcast timer interrupts for timer event device LOC: 0 Local timer interrupts for others SPU: 0 Spurious interrupts PMI: 0 Performance monitoring interrupts MCE: 0 Machine check exceptions NMI: 0 System Reset interrupts # ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 52:54:00:12:34:56 brd ff:ff:ff:ff:ff:ff inet 192.168.199.76/24 brd 192.168.199.255 scope global eth0 valid_lft forever preferred_lft forever # hwclock random: fast init done Thu Jan 20 09:22:53 2022 0.000000 seconds #