drm/amdgpu: add irq domain support
Hardware blocks on the GPU like ACP generate interrupts in
the GPU interrupt controller, but are driven by a separate
driver. Add an irq domain to the GPU driver so that
blocks like ACP can register a Linux interrupt.
Acked-by: Dave Airlie <airlied@redhat.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/iceland_ih.c b/drivers/gpu/drm/amd/amdgpu/iceland_ih.c
index 779532d..679e739 100644
--- a/drivers/gpu/drm/amd/amdgpu/iceland_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/iceland_ih.c
@@ -253,8 +253,14 @@
static int iceland_ih_early_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ int ret;
+
+ ret = amdgpu_irq_add_domain(adev);
+ if (ret)
+ return ret;
iceland_ih_set_interrupt_funcs(adev);
+
return 0;
}
@@ -278,6 +284,7 @@
amdgpu_irq_fini(adev);
amdgpu_ih_ring_fini(adev);
+ amdgpu_irq_remove_domain(adev);
return 0;
}