>-----Original Message-----
>From: Deucher, Alexander <Alexander.Deucher@xxxxxxx>
>Sent: Monday, March 29, 2021 10:41 PM
>To: Deng, Emily <Emily.Deng@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx
>Cc: Deng, Emily <Emily.Deng@xxxxxxx>
>Subject: RE: [PATCH 3/6] drm/amdgpu: Restore msix after FLR
>
>[AMD Public Use]
>
>> -----Original Message-----
>> From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of
>> Emily Deng
>> Sent: Monday, March 29, 2021 3:50 AM
>> To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
>> Cc: Deng, Emily <Emily.Deng@xxxxxxx>
>> Subject: [PATCH 3/6] drm/amdgpu: Restore msix after FLR
>>
>> From: "Emily.Deng" <Emily.Deng@xxxxxxx>
>>
>> After FLR, the msix will be cleared, so need to re-enable it.
>>
>> Signed-off-by: Emily.Deng <Emily.Deng@xxxxxxx>
>> ---
>> drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 13 +++++++++++++
>> 1 file changed, 13 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
>> index 03412543427a..f24263120f3a 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
>> @@ -277,6 +277,18 @@ static bool amdgpu_msi_ok(struct amdgpu_device
>> *adev)
>> return true;
>> }
>>
>> +void amdgpu_restore_msix(struct amdgpu_device *adev) { #ifdef
>> +PCI_IRQ_MSIX
>
>This should be static. Also please use the amdgpu_irq_ prefix for consistency.
>Additionally, the #ifdef should be on it's own line. Moreover, can we just drop
>the #ifdef?
>
>Alex
Hi Alex,
Thanks for your suggestion, will modify and send out v2 patch to review again.
>
>> + u16 ctrl;
>> +
>> + pci_read_config_word(adev->pdev, adev->pdev->msix_cap +
>> PCI_MSIX_FLAGS, &ctrl);
>> + ctrl &= ~PCI_MSIX_FLAGS_ENABLE;
>> + pci_write_config_word(adev->pdev, adev->pdev->msix_cap +
>> PCI_MSIX_FLAGS, ctrl);
>> + ctrl |= PCI_MSIX_FLAGS_ENABLE;
>> + pci_write_config_word(adev->pdev, adev->pdev->msix_cap +
>> +PCI_MSIX_FLAGS, ctrl); #endif }
>> /**
>> * amdgpu_irq_init - initialize interrupt handling
>> *
>> @@ -558,6 +570,7 @@ void amdgpu_irq_gpu_reset_resume_helper(struct
>> amdgpu_device *adev) {
>> int i, j, k;
>>
>> + amdgpu_restore_msix(adev);
>> for (i = 0; i < AMDGPU_IRQ_CLIENTID_MAX; ++i) {
>> if (!adev->irq.client[i].sources)
>> continue;
>> --
>> 2.25.1
>>
>> _______________________________________________
>> amd-gfx mailing list
>> amd-gfx@xxxxxxxxxxxxxxxxxxxxx
>> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.
>> freedesktop.org%2Fmailman%2Flistinfo%2Famd-
>> gfx&data=04%7C01%7Calexander.deucher%40amd.com%7C422d42ec3
>>
>d004b207e5908d8f2873f6c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7
>>
>C0%7C637526009994486807%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4w
>>
>LjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&am
>> p;sdata=0gZJU2qgZ1H%2F08YNVNN4RVAcgzXDbMZOw%2FuGvrimYtg%3D&a
>> mp;reserved=0
_______________________________________________
amd-gfx mailing list
amd-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
