From: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
To: "Christian König" <ckoenig.leichtzumerken@gmail.com>,
dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org,
linux-pci@vger.kernel.org, daniel.vetter@ffwll.ch,
Harry.Wentland@amd.com
Cc: ppaalanen@gmail.com, Alexander.Deucher@amd.com,
gregkh@linuxfoundation.org, helgaas@kernel.org,
Felix.Kuehling@amd.com
Subject: Re: [PATCH v7 12/16] drm/amdgpu: Fix hang on device removal.
Date: Mon, 17 May 2021 15:46:04 -0400 [thread overview]
Message-ID: <8997d1b0-8f7a-e8dd-fabe-212fd181e24a@amd.com> (raw)
In-Reply-To: <356d03bf-e221-86b1-f133-83def9d956bd@gmail.com>
Yep, you can take a look.
Andrey
On 2021-05-17 3:39 p.m., Christian König wrote:
> You need to note who you are pinging here.
>
> I'm still assuming you wait for feedback from Daniel. Or should I take a
> look?
>
> Christian.
>
> Am 17.05.21 um 16:40 schrieb Andrey Grodzovsky:
>> Ping
>>
>> Andrey
>>
>> On 2021-05-14 10:42 a.m., Andrey Grodzovsky wrote:
>>> Ping
>>>
>>> Andrey
>>>
>>> On 2021-05-12 10:26 a.m., Andrey Grodzovsky wrote:
>>>> If removing while commands in flight you cannot wait to flush the
>>>> HW fences on a ring since the device is gone.
>>>>
>>>> Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
>>>> ---
>>>> drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 16 ++++++++++------
>>>> 1 file changed, 10 insertions(+), 6 deletions(-)
>>>>
>>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
>>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
>>>> index 1ffb36bd0b19..fa03702ecbfb 100644
>>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
>>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
>>>> @@ -36,6 +36,7 @@
>>>> #include <linux/firmware.h>
>>>> #include <linux/pm_runtime.h>
>>>> +#include <drm/drm_drv.h>
>>>> #include "amdgpu.h"
>>>> #include "amdgpu_trace.h"
>>>> @@ -525,8 +526,7 @@ int amdgpu_fence_driver_init(struct
>>>> amdgpu_device *adev)
>>>> */
>>>> void amdgpu_fence_driver_fini_hw(struct amdgpu_device *adev)
>>>> {
>>>> - unsigned i, j;
>>>> - int r;
>>>> + int i, r;
>>>> for (i = 0; i < AMDGPU_MAX_RINGS; i++) {
>>>> struct amdgpu_ring *ring = adev->rings[i];
>>>> @@ -535,11 +535,15 @@ void amdgpu_fence_driver_fini_hw(struct
>>>> amdgpu_device *adev)
>>>> continue;
>>>> if (!ring->no_scheduler)
>>>> drm_sched_fini(&ring->sched);
>>>> - r = amdgpu_fence_wait_empty(ring);
>>>> - if (r) {
>>>> - /* no need to trigger GPU reset as we are unloading */
>>>> + /* You can't wait for HW to signal if it's gone */
>>>> + if (!drm_dev_is_unplugged(&adev->ddev))
>>>> + r = amdgpu_fence_wait_empty(ring);
>>>> + else
>>>> + r = -ENODEV;
>>>> + /* no need to trigger GPU reset as we are unloading */
>>>> + if (r)
>>>> amdgpu_fence_driver_force_completion(ring);
>>>> - }
>>>> +
>>>> if (ring->fence_drv.irq_src)
>>>> amdgpu_irq_put(adev, ring->fence_drv.irq_src,
>>>> ring->fence_drv.irq_type);
>>>>
>
next prev parent reply other threads:[~2021-05-17 19:46 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-12 14:26 [PATCH v7 00/16] RFC Support hot device unplug in amdgpu Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 01/16] drm/ttm: Remap all page faults to per process dummy page Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 02/16] drm/amdgpu: Split amdgpu_device_fini into early and late Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 03/16] drm/amdkfd: Split kfd suspend from device exit Andrey Grodzovsky
2021-05-12 20:33 ` Felix Kuehling
2021-05-12 20:38 ` Andrey Grodzovsky
2021-05-20 3:20 ` [PATCH] drm/amdgpu: Add early fini callback Andrey Grodzovsky
2021-05-20 3:29 ` Felix Kuehling
2021-05-20 3:58 ` Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 04/16] " Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 05/16] drm/amdgpu: Handle IOMMU enabled case Andrey Grodzovsky
2021-05-14 14:41 ` Andrey Grodzovsky
2021-05-14 16:25 ` Felix Kuehling
2021-05-14 16:26 ` Andrey Grodzovsky
2021-05-17 14:38 ` [PATCH] " Andrey Grodzovsky
2021-05-17 14:48 ` Felix Kuehling
2021-05-12 14:26 ` [PATCH v7 06/16] drm/amdgpu: Remap all page faults to per process dummy page Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 07/16] PCI: Add support for dev_groups to struct pci_driver Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 08/16] drm/amdgpu: Convert driver sysfs attributes to static attributes Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 09/16] drm/amdgpu: Guard against write accesses after device removal Andrey Grodzovsky
2021-05-12 20:17 ` Alex Deucher
2021-05-12 20:30 ` Andrey Grodzovsky
2021-05-12 20:50 ` Alex Deucher
2021-05-13 14:47 ` Andrey Grodzovsky
2021-05-13 14:54 ` Alex Deucher
2021-05-12 14:26 ` [PATCH v7 10/16] drm/sched: Make timeout timer rearm conditional Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 11/16] drm/amdgpu: Prevent any job recoveries after device is unplugged Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 12/16] drm/amdgpu: Fix hang on device removal Andrey Grodzovsky
2021-05-14 14:42 ` Andrey Grodzovsky
2021-05-17 14:40 ` Andrey Grodzovsky
2021-05-17 17:39 ` Alex Deucher
2021-05-17 19:39 ` Christian König
2021-05-17 19:46 ` Andrey Grodzovsky [this message]
2021-05-17 19:54 ` Christian König
2021-05-12 14:26 ` [PATCH v7 13/16] drm/scheduler: Fix hang when sched_entity released Andrey Grodzovsky
2021-05-18 14:07 ` Christian König
2021-05-18 15:03 ` Andrey Grodzovsky
2021-05-18 15:15 ` Christian König
2021-05-18 16:17 ` Andrey Grodzovsky
2021-05-18 16:33 ` Christian König
2021-05-18 17:43 ` Andrey Grodzovsky
2021-05-18 18:02 ` Christian König
2021-05-18 18:09 ` Andrey Grodzovsky
2021-05-18 18:13 ` Christian König
2021-05-18 18:48 ` Andrey Grodzovsky
2021-05-18 20:56 ` Andrey Grodzovsky
2021-05-19 10:57 ` Christian König
2021-05-19 11:03 ` Andrey Grodzovsky
2021-05-19 11:46 ` Christian König
2021-05-19 11:51 ` Andrey Grodzovsky
2021-05-19 11:56 ` Christian König
2021-05-19 14:14 ` [PATCH] drm/sched: Avoid data corruptions Andrey Grodzovsky
2021-05-19 14:15 ` Christian König
2021-05-12 14:26 ` [PATCH v7 14/16] drm/amd/display: Remove superfluous drm_mode_config_cleanup Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 15/16] drm/amdgpu: Verify DMA opearations from device are done Andrey Grodzovsky
2021-05-12 14:26 ` [PATCH v7 16/16] drm/amdgpu: Unmap all MMIO mappings Andrey Grodzovsky
2021-05-14 14:42 ` Andrey Grodzovsky
2021-05-17 14:41 ` Andrey Grodzovsky
2021-05-17 17:43 ` Alex Deucher
2021-05-17 18:46 ` Andrey Grodzovsky
2021-05-17 18:56 ` Alex Deucher
2021-05-17 19:22 ` Andrey Grodzovsky
2021-05-17 19:31 ` [PATCH] " Andrey Grodzovsky
2021-05-18 14:01 ` Andrey Grodzovsky
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