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From: Christian Zigotzky <chzigotzky@xenosoft.de>
To: Christoph Hellwig <hch@lst.de>
Cc: linux-arch@vger.kernel.org,
	Darren Stevens <darren@stevens-zone.net>,
	linux-kernel@vger.kernel.org, Julian Margetson <runaway@candw.ms>,
	linux-mm@kvack.org, iommu@lists.linux-foundation.org,
	Paul Mackerras <paulus@samba.org>,
	Olof Johansson <olof@lixom.net>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: use generic DMA mapping code in powerpc V4
Date: Sun, 10 Feb 2019 13:00:20 +0100	[thread overview]
Message-ID: <4e7137db-e600-0d20-6fb2-6d0f9739aca3@xenosoft.de> (raw)
In-Reply-To: <20190208091818.GA23491@lst.de>

Hi Christoph,

On 08 February 2019 at 10:18AM, Christoph Hellwig wrote:
> On Fri, Feb 08, 2019 at 10:01:46AM +0100, Christian Zigotzky wrote:
>> Hi Christoph,
>>
>> Your new patch fixes the problems with the P.A. Semi Ethernet! :-)
> Thanks a lot once again for testing!
>
> Now can you test with this patch and the whole series?
>
> I've updated the powerpc-dma.6 branch to include this fix.
>
I tested the whole series today. The kernels boot and the P.A. Semi 
Ethernet works! :-) Thanks a lot!

I also tested it in a virtual e5500 QEMU machine today. Unfortunately 
the kernel crashes.

Log:

[   54.624330] BUG: Unable to handle kernel data access at 
0xc06c008a0013014a
[   54.625640] Faulting instruction address: 0xc000000000027e7c
[   54.626140] Oops: Kernel access of bad area, sig: 11 [#1]
[   54.626456] BE SMP NR_CPUS=4 QEMU e500
[   54.626876] Modules linked in:
[   54.627284] CPU: 1 PID: 1876 Comm: systemd-journal Not tainted 
5.0.0-rc5-DMA_A1-X5000-54581-gda1d065-dirty #1
[   54.627819] NIP:  c000000000027e7c LR: c0000000000b5264 CTR: 
0000000000000000
[   54.628173] REGS: c00000007ffeb700 TRAP: 0300   Not tainted 
(5.0.0-rc5-DMA_A1-X5000-54581-gda1d065-dirty)
[   54.628607] MSR:  0000000080009000 <EE,ME>  CR: 44008486 XER: 00000000
[   54.629023] DEAR: c06c008a0013014a ESR: 0000000000800000 IRQMASK: 0
[   54.629023] GPR00: 0000000000005254 c00000007ffeb990 c0000000016b2000 
c06c008a0013014a
[   54.629023] GPR04: c00000007c54f8c0 0000000000000058 0000000000000006 
0000000000000000
[   54.629023] GPR08: 0000000000000000 000000007c54f8c0 006c008a0013014a 
c00000007c86c000
[   54.629023] GPR12: 0000000028002482 c00000003ffff8c0 0000000000000000 
c000000078dfaa70
[   54.629023] GPR16: c000000078366c00 0000000000000000 000000000000005e 
0000000000000000
[   54.629023] GPR20: 0000000000000000 c00000007c54f8c0 0000000000000007 
c000000078dfa000
[   54.629023] GPR24: 0000000000000000 0000000000000047 0000000000000000 
80000000003f6470
[   54.629023] GPR28: c00000007928d470 c000000078801dc0 000000000000005e 
c000000078dfa7c0
[   54.632572] NIP [c000000000027e7c] .memcpy+0x1fc/0x288
[   54.632886] LR [c0000000000b5264] .swiotlb_tbl_sync_single+0xb0/0xe4
[   54.633221] Call Trace:
[   54.633513] [c00000007ffeb990] [c00000007ffeba70] 0xc00000007ffeba70 
(unreliable)
[   54.633988] [c00000007ffeba00] [c0000000000b41e4] 
.dma_direct_sync_single_for_cpu+0x58/0x6c
[   54.634436] [c00000007ffeba70] [c000000000788da4] 
.e1000_clean_rx_irq+0x1bc/0x4c8
[   54.634857] [c00000007ffebb90] [c00000000078667c] 
.e1000_clean+0x714/0x8d4
[   54.635263] [c00000007ffebcc0] [c000000000a3f15c] 
.net_rx_action+0x11c/0x2a4
[   54.635712] [c00000007ffebdb0] [c000000000c48c20] 
.__do_softirq+0x150/0x2a8
[   54.636211] [c00000007ffebeb0] [c000000000064184] .irq_exit+0x6c/0xc4
[   54.636533] [c00000007ffebf20] [c000000000004124] .__do_irq+0x80/0x94
[   54.636985] [c00000007ffebf90] [c00000000000eca0] .call_do_irq+0x14/0x24
[   54.637371] [c00000007c86fd80] [c0000000000041c0] .do_IRQ+0x88/0xc4
[   54.637737] [c00000007c86fe20] [c000000000012920] 
exc_0x500_common+0xd8/0xdc
[   54.638104] Instruction dump:
[   54.638451] e861fff8 4e800020 7cd01120 7ca62850 38e00000 28a50010 
409f0010 88040000
[   54.638887] 98030000 38e70001 409e0010 7c07222e <7c071b2e> 38e70002 
409d000c 7c07202e
[   54.639594] ---[ end trace a4861de7e4c199f7 ]---
[   54.639873]
[   55.640484] Kernel panic - not syncing: Aiee, killing interrupt handler!
[   55.641556] Rebooting in 180 seconds..

-----

I tested with the following QEMU commands:

./qemu-system-ppc64 -M ppce500 -cpu e5500 -m 2048  -nographic -kernel 
/home/christian/Downloads/vmlinux-5.0-rc5-2-AmigaOne_X1000_X5000/X5000_and_QEMU_e5500/uImage-5.0 
-nic user,model=e1000 -drive 
format=raw,file=/home/christian/Downloads/MATE_PowerPC_Remix_2017_0.9.img,index=0,if=virtio 
-append "rw root=/dev/vda" -smp 4

./qemu-system-ppc64 -M ppce500 -cpu e5500 -m 2048 -kernel 
/home/christian/Downloads/vmlinux-5.0-rc5-2-AmigaOne_X1000_X5000/X5000_and_QEMU_e5500/uImage-5.0 
-drive 
format=raw,file=/home/christian/Downloads/MATE_PowerPC_Remix_2017_0.9.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

The RC5 of kernel 5.0 boots without any problems in this virtual machine.

Cheers,
Christian


  parent reply	other threads:[~2019-02-10 12:00 UTC|newest]

Thread overview: 192+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-14  8:22 use generic DMA mapping code in powerpc V4 Christoph Hellwig
2018-11-14  8:22 ` [PATCH 01/34] powerpc: use mm zones more sensibly Christoph Hellwig
2018-12-06 14:09   ` Christoph Hellwig
2018-12-07 12:18     ` Michael Ellerman
2018-12-07 14:09       ` Christoph Hellwig
2018-12-07 15:04         ` Christian Zigotzky
2018-11-14  8:22 ` [PATCH 02/34] powerpc: allow NOT_COHERENT_CACHE for amigaone Christoph Hellwig
2018-12-06 14:09   ` Christoph Hellwig
2018-11-14  8:22 ` [PATCH 03/34] powerpc/dma: remove the unused ARCH_HAS_DMA_MMAP_COHERENT define Christoph Hellwig
2018-12-06 14:09   ` Christoph Hellwig
2018-11-14  8:22 ` [PATCH 04/34] powerpc/dma: remove the unused ISA_DMA_THRESHOLD export Christoph Hellwig
2018-12-06 14:10   ` Christoph Hellwig
2018-11-14  8:22 ` [PATCH 05/34] powerpc/dma: remove the unused dma_iommu_ops export Christoph Hellwig
2018-12-06 14:10   ` Christoph Hellwig
2018-11-14  8:22 ` [PATCH 06/34] powerpc/dma: split the two __dma_alloc_coherent implementations Christoph Hellwig
2018-12-06 14:10   ` Christoph Hellwig
2018-11-14  8:22 ` [PATCH 07/34] powerpc/dma: remove the no-op dma_nommu_unmap_{page,sg} routines Christoph Hellwig
2018-12-06 14:10   ` [PATCH 07/34] powerpc/dma: remove the no-op dma_nommu_unmap_{page, sg} routines Christoph Hellwig
2018-11-14  8:22 ` [PATCH 08/34] powerpc/dma: untangle vio_dma_mapping_ops from dma_iommu_ops Christoph Hellwig
2018-12-06 14:10   ` Christoph Hellwig
2018-11-14  8:22 ` [PATCH 09/34] powerpc/dma: handle iommu bypass in dma_iommu_ops Christoph Hellwig
2018-11-14  8:22 ` [PATCH 10/34] powerpc/pseries: unwind dma_get_required_mask_pSeriesLP a bit Christoph Hellwig
2018-11-14  8:22 ` [PATCH 11/34] powerpc/pseries: use the generic iommu bypass code Christoph Hellwig
2018-11-14  8:22 ` [PATCH 12/34] powerpc/cell: move dma direct window setup out of dma_configure Christoph Hellwig
2018-12-09 10:23   ` Michael Ellerman
2018-12-12 14:36     ` Christoph Hellwig
2018-12-14 13:29       ` Michael Ellerman
2018-12-14 16:42         ` Christoph Hellwig
2018-11-14  8:22 ` [PATCH 13/34] powerpc/cell: use the generic iommu bypass code Christoph Hellwig
2018-11-14  8:22 ` [PATCH 14/34] powerpc/dart: remove dead cleanup code in iommu_init_early_dart Christoph Hellwig
2018-12-06 14:11   ` Christoph Hellwig
2018-11-14  8:22 ` [PATCH 15/34] powerpc/dart: use the generic iommu bypass code Christoph Hellwig
2018-11-14  8:22 ` [PATCH 16/34] powerpc/powernv: remove pnv_pci_ioda_pe_single_vendor Christoph Hellwig
2018-11-14  8:22 ` [PATCH 17/34] powerpc/powernv: remove pnv_npu_dma_set_mask Christoph Hellwig
2018-11-14  8:22 ` [PATCH 18/34] powerpc/powernv: use the generic iommu bypass code Christoph Hellwig
2018-11-14  8:22 ` [PATCH 19/34] cxl: drop the dma_set_mask callback from vphb Christoph Hellwig
2018-12-06 14:10   ` Christoph Hellwig
2018-11-14  8:23 ` [PATCH 20/34] powerpc/dma: stop overriding dma_get_required_mask Christoph Hellwig
2018-11-14  8:23 ` [PATCH 21/34] powerpc/pci: remove the dma_set_mask pci_controller ops methods Christoph Hellwig
2018-11-14  8:23 ` [PATCH 22/34] powerpc/dma: remove the iommu fallback for coherent allocations Christoph Hellwig
2018-11-14  8:23 ` [PATCH 23/34] powerpc/dma: remove get_pci_dma_ops Christoph Hellwig
2018-11-14  8:23 ` [PATCH 24/34] powerpc/dma: move pci_dma_dev_setup_swiotlb to fsl_pci.c Christoph Hellwig
2018-11-14  8:23 ` [PATCH 25/34] powerpc/dma: remove max_direct_dma_addr Christoph Hellwig
2018-11-14  8:23 ` [PATCH 26/34] powerpc/dma: fix an off-by-one in dma_capable Christoph Hellwig
2018-11-14  8:23 ` [PATCH 27/34] powerpc/fsl_pci: simplify fsl_pci_dma_set_mask Christoph Hellwig
2018-11-14  8:23 ` [PATCH 28/34] dma-mapping, powerpc: simplify the arch dma_set_mask override Christoph Hellwig
2018-11-14  8:23 ` [PATCH 29/34] powerpc/dma: use phys_to_dma instead of get_dma_offset Christoph Hellwig
2018-11-14  8:23 ` [PATCH 30/34] powerpc/dma: remove dma_nommu_mmap_coherent Christoph Hellwig
2018-11-14  8:23 ` [PATCH 31/34] powerpc/dma: use generic direct and swiotlb ops Christoph Hellwig
2018-11-14  8:23 ` [PATCH 32/34] powerpc/dma: remove get_dma_offset Christoph Hellwig
2018-11-14  8:23 ` [PATCH 33/34] powerpc/dma: remove set_dma_offset Christoph Hellwig
2018-11-14  8:23 ` [PATCH 34/34] powerpc/dma: trim the fat from <asm/dma-mapping.h> Christoph Hellwig
2018-11-27  7:42 ` use generic DMA mapping code in powerpc V4 Christoph Hellwig
2018-11-27 22:05   ` Benjamin Herrenschmidt
2018-11-28 11:05   ` Michael Ellerman
2018-11-28 15:55     ` Christian Zigotzky
2018-11-28 20:02       ` Christian Zigotzky
2018-11-28 20:35       ` Michal Suchánek
2018-11-29 17:03         ` Christoph Hellwig
2019-12-19 13:54       ` Christian Zigotzky
2018-11-29 12:05     ` Christian Zigotzky
2018-11-29 15:30       ` Christian Zigotzky
2018-11-29 17:03       ` Christoph Hellwig
2018-11-29 23:07         ` Christian Zigotzky
2018-11-30 10:53           ` Christoph Hellwig
2018-11-30 12:23             ` Christian Zigotzky
2018-11-30 13:10               ` Christoph Hellwig
2018-11-30 15:29                 ` Christian Zigotzky
2018-12-04  7:31                   ` Christian Zigotzky
2018-12-04  9:53                     ` Christian Zigotzky
2018-12-04 14:24                       ` Christoph Hellwig
2018-12-05  9:44                         ` Christian Zigotzky
2018-12-05 14:05                           ` Christoph Hellwig
2018-12-06 10:55                             ` Christian Zigotzky
2018-12-06 17:10                               ` Christian Zigotzky
2018-12-06 19:36                                 ` Christoph Hellwig
2018-12-07  7:48                                   ` Christian Zigotzky
2018-12-07 13:45                               ` Christian Zigotzky
2018-12-07 18:33                                 ` Christian Zigotzky
2018-12-08 10:29                                   ` Christian Zigotzky
2018-12-08 13:47                                     ` Christian Zigotzky
2018-12-09 14:20                                       ` Christian Zigotzky
2018-12-09 18:26                                         ` Christian Zigotzky
2018-12-10 15:54                                           ` Christian Zigotzky
2018-12-11 14:28                                             ` Christian Zigotzky
2018-12-11 18:17                                               ` Christian Zigotzky
2018-12-12  0:47                                                 ` Benjamin Herrenschmidt
2018-12-12  7:03                                                   ` Christian Zigotzky
2018-12-12 14:15                                                 ` Christoph Hellwig
2018-12-12 14:39                                                   ` Christian Zigotzky
2018-12-13  8:41                                                     ` Christian Zigotzky
2018-12-13  9:10                                                       ` Christoph Hellwig
2018-12-13  9:47                                                         ` Christian Zigotzky
2018-12-13 11:19                                                           ` Christian Zigotzky
2018-12-13 11:25                                                             ` Christoph Hellwig
2018-12-13 13:34                                                               ` Christian Zigotzky
2018-12-13 17:48                                                                 ` Christian Zigotzky
2018-12-13 21:53                                                                   ` Christian Zigotzky
2018-12-14 12:00                                                                     ` Christian Zigotzky
2018-12-14 16:45                                                                       ` Christoph Hellwig
2019-01-03  7:36                                                                       ` Christoph Hellwig
2019-01-03 19:26                                                                         ` Christian Zigotzky
2019-01-05 16:03                                                                           ` Christian Zigotzky
2019-01-09  9:31                                                                             ` Christian Zigotzky
2019-01-11  2:10                                                                               ` Christian Zigotzky
2019-01-12 18:14                                                                                 ` Christian Zigotzky
2019-01-15  8:07                                                                                   ` Christian Zigotzky
2019-01-15  8:49                                                                                     ` Christian Zigotzky
2019-01-15 10:55                                                                                       ` Christian Zigotzky
2019-01-15 13:35                                                                                         ` Christoph Hellwig
2019-01-15 13:56                                                                                           ` Christian Zigotzky
2019-01-15 15:17                                                                                             ` Christoph Hellwig
2019-01-17  9:21                                                                                               ` Christian Zigotzky
2019-01-17  9:31                                                                                                 ` Christoph Hellwig
2019-01-17  9:44                                                                                                   ` Christian Zigotzky
2019-01-18  8:35                                                                                                 ` Christoph Hellwig
2019-01-18 11:10                                                                                                   ` Christian Zigotzky
2019-01-18 11:28                                                                                                     ` Christoph Hellwig
2019-01-18 12:07                                                                                                       ` Christian Zigotzky
2019-01-18 12:18                                                                                                         ` Christoph Hellwig
2019-01-18 12:46                                                                                                           ` Christian Zigotzky
2019-01-18 12:55                                                                                                             ` Christoph Hellwig
2019-01-18 15:06                                                                                                               ` Christian Zigotzky
2019-01-19 11:40                                                                                                                 ` Christian Zigotzky
2019-01-19 11:52                                                                                                                   ` Christian Zigotzky
2019-01-19 13:02                                                                                                                     ` Christoph Hellwig
2019-01-19 14:04                                                                                                                       ` Christoph Hellwig
2019-01-21 14:38                                                                                                                         ` Christian Zigotzky
2019-01-23 14:34                                                                                                                           ` Christian Zigotzky
2019-01-25 13:37                                                                                                                             ` Christian Zigotzky
2019-01-27 13:13                                                                                                                               ` Christian Zigotzky
2019-01-28  7:04                                                                                                                                 ` Christoph Hellwig
     [not found]                                                                                                                                   ` <20190128070422.GA2772-jcswGhMUV9g@public.gmane.org>
2019-01-28 16:22                                                                                                                                     ` Christoph Hellwig
2019-01-28 16:22                                                                                                                                       ` Christoph Hellwig
2019-01-28 16:52                                                                                                                                       ` Christian Zigotzky
2019-01-28 16:52                                                                                                                                         ` Christian Zigotzky
2019-01-29 15:03                                                                                                                                         ` Christian Zigotzky
2019-01-29 16:14                                                                                                                                           ` Christoph Hellwig
2019-01-29 16:34                                                                                                                                             ` Christoph Hellwig
2019-01-30  4:40                                                                                                                                               ` Christian Zigotzky
2019-01-31 12:48                                                                                                                                                 ` Christian Zigotzky
2019-02-01  8:04                                                                                                                                                   ` Christoph Hellwig
2019-02-01 16:54                                                                                                                                                     ` Christian Zigotzky
2019-02-03 16:49                                                                                                                                                       ` Christian Zigotzky
2019-02-04  7:56                                                                                                                                                         ` Christoph Hellwig
2019-02-04 12:13                                                                                                                                                           ` Christian Zigotzky
2019-02-04 12:38                                                                                                                                                             ` Christoph Hellwig
2019-02-06 13:45                                                                                                                                                               ` Christian Zigotzky
2019-02-06 15:15                                                                                                                                                                 ` Christoph Hellwig
2019-02-06 15:16                                                                                                                                                                   ` Christoph Hellwig
2019-02-07  4:34                                                                                                                                                                     ` Christian Zigotzky
2019-02-08  9:01                                                                                                                                                                       ` Christian Zigotzky
2019-02-08  9:18                                                                                                                                                                         ` Christoph Hellwig
2019-02-08 10:59                                                                                                                                                                           ` Christian Zigotzky
2019-02-10 12:00                                                                                                                                                                           ` Christian Zigotzky [this message]
2019-02-11  7:16                                                                                                                                                                             ` Christian Zigotzky
2019-02-11  7:21                                                                                                                                                                               ` Christian Zigotzky
2019-02-11  7:38                                                                                                                                                                             ` Christoph Hellwig
2019-02-12 12:42                                                                                                                                                                               ` Christian Zigotzky
2019-02-12 15:25                                                                                                                                                                                 ` Christoph Hellwig
2019-02-12 19:31                                                                                                                                                                                   ` Christian Zigotzky
2019-02-12 19:50                                                                                                                                                                                     ` Christian Zigotzky
2019-02-12 19:52                                                                                                                                                                                       ` Christoph Hellwig
2019-11-05  7:56                                                                               ` Bug 205201 - overflow of DMA mask and bus mask Christian Zigotzky
2019-11-05 16:28                                                                                 ` Christoph Hellwig
2019-11-06 14:09                                                                                   ` Robin Murphy
2019-11-21 17:26                                                                                     ` Christoph Hellwig
2019-11-07  9:53                                                                                   ` Christian Zigotzky
2019-11-10  7:27                                                                                     ` Christian Zigotzky
2019-11-11  8:12                                                                                       ` Christian Zigotzky
2019-11-11  8:16                                                                                         ` Christian Zigotzky
2019-11-11 12:22                                                                                           ` Christian Zigotzky
2019-11-12 14:41                                                                                             ` Christoph Hellwig
2019-11-12 22:58                                                                                               ` Christian Zigotzky
2019-11-13 10:14                                                                                               ` Christian Zigotzky
2019-11-13 11:02                                                                                                 ` Christoph Hellwig
2018-11-29 17:02     ` use generic DMA mapping code in powerpc V4 Christoph Hellwig
2018-11-30  3:17   ` Benjamin Herrenschmidt
2018-12-08 17:03 ` Christoph Hellwig
2018-12-16 16:51 ` Christoph Hellwig
2018-12-17  1:14   ` Michael Ellerman
2018-11-29 19:45 Rui Salvaterra
2018-11-30 10:32 ` Christoph Hellwig
2018-11-30 11:44   ` Rui Salvaterra
2018-11-30 16:41     ` Rui Salvaterra
2018-12-02  6:11     ` Benjamin Herrenschmidt
2018-12-08 17:17       ` Christoph Hellwig
2018-12-10 17:04         ` Rui Salvaterra
2018-12-10 19:33           ` Christoph Hellwig
2018-12-10 20:03             ` Rui Salvaterra
2018-12-10 20:49             ` Benjamin Herrenschmidt
2018-12-11  9:37               ` Rui Salvaterra

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