Commit f8085859 authored by Timur Kristóf's avatar Timur Kristóf Committed by Alex Deucher
Browse files

drm/amdgpu/tonga_ih: Enable soft IRQ handler ring 



We are going to use the soft IRQ handler ring on GMC v8
to process interrupts from VM faults.

Signed-off-by: default avatarTimur Kristóf <timur.kristof@gmail.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent f4fa4c9e

drivers/gpu/drm/amd/amdgpu/tonga_ih.c

+10 −0
Original line number Diff line number Diff line
@@ -159,6 +159,9 @@ static int tonga_ih_irq_init(struct amdgpu_device *adev) 
	/* enable interrupts */

	tonga_ih_enable_interrupts(adev);



	if (adev->irq.ih_soft.ring_size)

		adev->irq.ih_soft.enabled = true;



	return 0;

}
@@ -196,6 +199,9 @@ static u32 tonga_ih_get_wptr(struct amdgpu_device *adev, 


	wptr = le32_to_cpu(*ih->wptr_cpu);



	if (ih == &adev->irq.ih_soft)

		goto out;



	if (!REG_GET_FIELD(wptr, IH_RB_WPTR, RB_OVERFLOW))

		goto out;
@@ -306,6 +312,10 @@ static int tonga_ih_sw_init(struct amdgpu_ip_block *ip_block) 
	if (r)

		return r;



	r = amdgpu_ih_ring_init(adev, &adev->irq.ih_soft, IH_SW_RING_SIZE, true);

	if (r)

		return r;



	adev->irq.ih.use_doorbell = true;

	adev->irq.ih.doorbell_index = adev->doorbell_index.ih;