Change queue/pipe split between amdkfd and amdgpu
oded.gabbay at gmail.com
Thu Feb 9 20:11:36 UTC 2017
I tried your patches on Kaveri with airlied's drm-next branch.
I used radeon+amdkfd
The following test failed: KFDQMTest.CreateMultipleCpQueues
However, I can't debug it because I don't have the sources of kfdtest.
In dmesg, I saw the following warning during boot:
WARNING: CPU: 0 PID: 150 at
[ 4.393796] Modules linked in: hid_logitech_hidpp hid_logitech_dj
hid_generic usbhid hid uas usb_storage amdkfd amd_iommu_v2 radeon(+)
i2c_algo_bit ttm drm_kms_helper syscopyarea ahci sysfillrect sysimgblt
libahci fb_sys_fops drm r8169 mii fjes video
[ 4.393811] CPU: 0 PID: 150 Comm: systemd-udevd Not tainted 4.10.0-rc5+ #1
[ 4.393811] Hardware name: Gigabyte Technology Co., Ltd. To be
filled by O.E.M./F2A88XM-D3H, BIOS F5 01/09/2014
[ 4.393812] Call Trace:
[ 4.393818] dump_stack+0x63/0x90
[ 4.393822] __warn+0xcb/0xf0
[ 4.393823] warn_slowpath_null+0x1d/0x20
[ 4.393830] start_cpsch+0xc5/0x220 [amdkfd]
[ 4.393836] ? initialize_cpsch+0xa0/0xb0 [amdkfd]
[ 4.393841] kgd2kfd_device_init+0x375/0x490 [amdkfd]
[ 4.393883] radeon_kfd_device_init+0xaf/0xd0 [radeon]
[ 4.393911] radeon_driver_load_kms+0x11e/0x1f0 [radeon]
[ 4.393933] drm_dev_register+0x14a/0x200 [drm]
[ 4.393946] drm_get_pci_dev+0x9d/0x160 [drm]
[ 4.393974] radeon_pci_probe+0xb8/0xe0 [radeon]
[ 4.393976] local_pci_probe+0x45/0xa0
[ 4.393978] pci_device_probe+0x103/0x150
[ 4.393981] driver_probe_device+0x2bf/0x460
[ 4.393982] __driver_attach+0xdf/0xf0
[ 4.393984] ? driver_probe_device+0x460/0x460
[ 4.393985] bus_for_each_dev+0x6c/0xc0
[ 4.393987] driver_attach+0x1e/0x20
[ 4.393988] bus_add_driver+0x1fd/0x270
[ 4.393989] ? 0xffffffffc05c8000
[ 4.393991] driver_register+0x60/0xe0
[ 4.393992] ? 0xffffffffc05c8000
[ 4.393993] __pci_register_driver+0x4c/0x50
[ 4.394007] drm_pci_init+0xeb/0x100 [drm]
[ 4.394008] ? 0xffffffffc05c8000
[ 4.394031] radeon_init+0x98/0xb6 [radeon]
[ 4.394034] do_one_initcall+0x53/0x1a0
[ 4.394037] ? __vunmap+0x81/0xd0
[ 4.394039] ? kmem_cache_alloc_trace+0x152/0x1c0
[ 4.394041] ? vfree+0x2e/0x70
[ 4.394044] do_init_module+0x5f/0x1ff
[ 4.394046] load_module+0x24cc/0x29f0
[ 4.394047] ? __symbol_put+0x60/0x60
[ 4.394050] ? security_kernel_post_read_file+0x6b/0x80
[ 4.394052] SYSC_finit_module+0xdf/0x110
[ 4.394054] SyS_finit_module+0xe/0x10
[ 4.394056] entry_SYSCALL_64_fastpath+0x1e/0xad
[ 4.394058] RIP: 0033:0x7f9cda77c8e9
[ 4.394059] RSP: 002b:00007ffe195d3378 EFLAGS: 00000246 ORIG_RAX:
[ 4.394060] RAX: ffffffffffffffda RBX: 00007f9cdb8dda7e RCX: 00007f9cda77c8e9
[ 4.394061] RDX: 0000000000000000 RSI: 00007f9cdac7ce2a RDI: 0000000000000013
[ 4.394062] RBP: 00007ffe195d2450 R08: 0000000000000000 R09: 0000000000000000
[ 4.394063] R10: 0000000000000013 R11: 0000000000000246 R12: 00007ffe195d245a
[ 4.394063] R13: 00007ffe195d1378 R14: 0000563f70cc93b0 R15: 0000563f70cba4d0
[ 4.394091] ---[ end trace 9c5af17304d998bb ]---
[ 4.394092] Invalid queue enabled by amdgpu: 9
I suggest you get a Kaveri/Carrizo machine to debug these issues.
Until that, I don't think we should merge this patch-set.
On Wed, Feb 8, 2017 at 9:47 PM, Andres Rodriguez <andresx7 at gmail.com> wrote:
> Thank you Oded.
> - Andres
> On 2017-02-08 02:32 PM, Oded Gabbay wrote:
>> On Wed, Feb 8, 2017 at 6:23 PM, Andres Rodriguez <andresx7 at gmail.com>
>>> Hey Felix,
>>> Thanks for the pointer to the ROCm mqd commit. I like that the
>>> are easy to spot. I'll add that to a new patch series I'm working on for
>>> some bug-fixes for perf being lower on pipes other than pipe 0.
>>> I haven't tested this yet on kaveri/carrizo. I'm hoping someone with the
>>> will be able to give it a go. I put in a few small hacks to get KFD to
>>> but do nothing on polaris10.
>>> On 2017-02-06 03:20 PM, Felix Kuehling wrote:
>>>> Hi Andres,
>>>> Thank you for tackling this task. It's more involved than I expected,
>>>> mostly because I didn't have much awareness of the MQD management in
>>>> I made one comment in a separate message about the unified MQD commit
>>>> function, if you want to bring that more in line with our latest ROCm
>>>> release on github.
>>>> Also, were you able to test the upstream KFD with your changes on a
>>>> Kaveri or Carrizo?
>>>> On 17-02-03 11:51 PM, Andres Rodriguez wrote:
>>>>> The current queue/pipe split policy is for amdgpu to take the first
>>>>> MEC0 and leave the rest for amdkfd to use. This policy is taken as an
>>>>> assumption in a few areas of the implementation.
>>>>> This patch series aims to allow for flexible/tunable queue/pipe split
>>>>> between kgd and kfd. It also updates the queue/pipe split policy to one
>>>>> allows better compute app concurrency for both drivers.
>>>>> In the process some duplicate code and hardcoded constants were
>>>>> Any suggestions or feedback on improvements welcome.
>>> amd-gfx mailing list
>>> amd-gfx at lists.freedesktop.org
>> Hi Andres,
>> I will try to find sometime to test it on my Kaveri machine.
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