mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-30 08:02:30 +00:00
Code Issues Releases Wiki Activity

drm/amdgpu: poll ras_controller_irq and err_event_athub_irq status

Browse source 
For the hardware that can not enable BIF ring for IH cookies for both
ras_controller_irq and err_event_athub_irq, the driver has to poll the
status register in irq handling and ack the hardware properly when there
is interrupt triggered

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hawking Zhang 2019-06-05 14:40:57 +08:00 committed by Alex Deucher
parent 4e644fffb5
commit a344db8e5e
1 changed files with 12 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
View file

@ -153,6 +153,18 @@ irqreturn_t amdgpu_irq_handler(int irq, void *arg)
ret = amdgpu_ih_process(adev, &adev->irq.ih);
if (ret == IRQ_HANDLED)
pm_runtime_mark_last_busy(dev->dev);
/* For the hardware that cannot enable bif ring for both ras_controller_irq
* and ras_err_evnet_athub_irq ih cookies, the driver has to poll status
* register to check whether the interrupt is triggered or not, and properly
* ack the interrupt if it is there
*/
if (adev->nbio.funcs->handle_ras_controller_intr_no_bifring)
adev->nbio.funcs->handle_ras_controller_intr_no_bifring(adev);
if (adev->nbio.funcs->handle_ras_err_event_athub_intr_no_bifring)
adev->nbio.funcs->handle_ras_err_event_athub_intr_no_bifring(adev);
return ret;
}