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Message-ID: <96762cd2-65fc-bce5-8c5b-c03bc3baf0a1@xenosoft.de>
Date: Thu, 31 Jan 2019 13:48:26 +0100
From: Christian Zigotzky <chzigotzky@...osoft.de>
To: Christoph Hellwig <hch@....de>
Cc: linux-arch@...r.kernel.org,
Darren Stevens <darren@...vens-zone.net>,
linux-kernel@...r.kernel.org, Julian Margetson <runaway@...dw.ms>,
linux-mm@...ck.org, iommu@...ts.linux-foundation.org,
Paul Mackerras <paulus@...ba.org>,
Olof Johansson <olof@...om.net>, linuxppc-dev@...ts.ozlabs.org
Subject: Re: use generic DMA mapping code in powerpc V4
Hi Christoph,
I compiled kernels for the X5000 and X1000 from your branch
'powerpc-dma.6' today.
Gitweb:
http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/powerpc-dma.6
git clone git://git.infradead.org/users/hch/misc.git -b powerpc-dma.6 a
The X1000 and X5000 boot but unfortunately the P.A. Semi Ethernet
doesn't work.
Error messages (X1000):
[ 17.371736] pci 0000:00:1a.0: overflow 0x00000002691bf802+1646 of DMA
mask ffffffff bus mask 0
[ 17.371760] WARNING: CPU: 0 PID: 2496 at kernel/dma/direct.c:43
.dma_direct_map_page+0x11c/0x200
[ 17.371762] Modules linked in:
[ 17.371769] CPU: 0 PID: 2496 Comm: NetworkManager Not tainted
5.0.0-rc4-3_A-EON_AmigaOne_X1000_Nemo-54580-g8d7a724-dirty #2
[ 17.371772] NIP: c00000000010395c LR: c000000000103a30 CTR:
c000000000726f70
[ 17.371775] REGS: c00000026900e9a0 TRAP: 0700 Not tainted
(5.0.0-rc4-3_A-EON_AmigaOne_X1000_Nemo-54580-g8d7a724-dirty)
[ 17.371777] MSR: 9000000000029032 <SF,HV,EE,ME,IR,DR,RI> CR:
24002222 XER: 20000000
[ 17.371786] IRQMASK: 0
GPR00: c000000000103a30 c00000026900ec30
c000000001923f00 0000000000000052
GPR04: c00000026f206778 c00000026f20d458
0000000000000000 0000000000000346
GPR08: 0000000000000007 0000000000000000
0000000000000000 0000000000000010
GPR12: 0000000022002444 c000000001b10000
0000000000000000 0000000000000000
GPR16: 0000000010382410 0000000000000000
0000000000000000 c00000026bd9d820
GPR20: 0000000000000000 c00000026919c000
0000000000000000 0000000000000000
GPR24: 0000000000000800 c000000269190000
c0000002692a4180 c000000269190000
GPR28: c000000277ada1c8 000000000000066e
c00000026d3c68b0 0000000000000802
[ 17.371823] NIP [c00000000010395c] .dma_direct_map_page+0x11c/0x200
[ 17.371827] LR [c000000000103a30] .dma_direct_map_page+0x1f0/0x200
[ 17.371829] Call Trace:
[ 17.371833] [c00000026900ec30] [c000000000103a30]
.dma_direct_map_page+0x1f0/0x200 (unreliable)
[ 17.371840] [c00000026900ecd0] [c00000000099b7ec]
.pasemi_mac_replenish_rx_ring+0x12c/0x2a0
[ 17.371846] [c00000026900eda0] [c00000000099dc64]
.pasemi_mac_open+0x384/0x7c0
[ 17.371853] [c00000026900ee40] [c000000000c6f484] .__dev_open+0x134/0x1e0
[ 17.371858] [c00000026900eee0] [c000000000c6f9ec]
.__dev_change_flags+0x1bc/0x210
[ 17.371863] [c00000026900ef90] [c000000000c6fa88]
.dev_change_flags+0x48/0xa0
[ 17.371869] [c00000026900f030] [c000000000c8c88c] .do_setlink+0x3dc/0xf60
[ 17.371875] [c00000026900f1b0] [c000000000c8dd84]
.__rtnl_newlink+0x5e4/0x900
[ 17.371880] [c00000026900f5f0] [c000000000c8e10c] .rtnl_newlink+0x6c/0xb0
[ 17.371885] [c00000026900f680] [c000000000c89838]
.rtnetlink_rcv_msg+0x2e8/0x3d0
[ 17.371891] [c00000026900f760] [c000000000cc0f90]
.netlink_rcv_skb+0x120/0x170
[ 17.371896] [c00000026900f820] [c000000000c87318]
.rtnetlink_rcv+0x28/0x40
[ 17.371901] [c00000026900f8a0] [c000000000cc03f8]
.netlink_unicast+0x208/0x2f0
[ 17.371906] [c00000026900f950] [c000000000cc09a8]
.netlink_sendmsg+0x348/0x460
[ 17.371911] [c00000026900fa30] [c000000000c38774] .sock_sendmsg+0x44/0x70
[ 17.371915] [c00000026900fab0] [c000000000c3a79c]
.___sys_sendmsg+0x30c/0x320
[ 17.371920] [c00000026900fca0] [c000000000c3c3b4]
.__sys_sendmsg+0x74/0xf0
[ 17.371926] [c00000026900fd90] [c000000000cb4da0]
.__se_compat_sys_sendmsg+0x40/0x60
[ 17.371932] [c00000026900fe20] [c00000000000a21c] system_call+0x5c/0x70
[ 17.371934] Instruction dump:
[ 17.371937] 60000000 f8610070 3d20ffff 6129fffe 79290020 e8e70000
7fa74840 409d00b8
[ 17.371946] 3d420001 892acb59 2f890000 419e00b8 <0fe00000> 382100a0
3860ffff e8010010
[ 17.371954] ---[ end trace a81f3c344f625f76 ]---
[ 17.396654] IPv6: ADDRCONF(NETDEV_UP): enp0s20f3: link is not ready
--------
Additionally, Xorg doesn't start on a virtual e5500 QEMU machine
anymore. I tested with the following QEMU command:
./qemu-system-ppc64 -M ppce500 -cpu e5500 -m 2048 -kernel
/home/christian/Downloads/vmlinux-5.0-rc4-3-AmigaOne_X1000_X5000/X5000_and_QEMU_e5500/uImage-5.0
-drive
format=raw,file=/home/christian/Downloads/Fienix-Beta120418.img,index=0,if=virtio
-nic user,model=e1000 -append "rw root=/dev/vda" -device virtio-vga
-device virtio-mouse-pci -device virtio-keyboard-pci -usb -soundhw
es1370 -smp 4
Cheers,
Christian
On 30 January 2019 at 05:40AM, Christian Zigotzky wrote:
> Hi Christoph,
>
> Thanks a lot for the updates. I will test the full branch tomorrow.
>
> Cheers,
> Christian
>
> Sent from my iPhone
>
>> On 29. Jan 2019, at 17:34, Christoph Hellwig <hch@....de> wrote:
>>
>>> On Tue, Jan 29, 2019 at 05:14:11PM +0100, Christoph Hellwig wrote:
>>>> On Tue, Jan 29, 2019 at 04:03:32PM +0100, Christian Zigotzky wrote:
>>>> Hi Christoph,
>>>>
>>>> I compiled kernels for the X5000 and X1000 from your new branch
>>>> 'powerpc-dma.6-debug.2' today. The kernels boot and the P.A. Semi Ethernet
>>>> works!
>>> Thanks for testing! I'll prepare a new series that adds the other
>>> patches on top of this one.
>> And that was easier than I thought - we just had a few patches left
>> in powerpc-dma.6, so I've rebased that branch on top of
>> powerpc-dma.6-debug.2:
>>
>> git://git.infradead.org/users/hch/misc.git powerpc-dma.6
>>
>> Gitweb:
>>
>> http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/powerpc-dma.6
>>
>> I hope the other patches are simple enough, so just testing the full
>> branch checkout should be fine for now.
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