drm/amdgpu: Add prescreening stage in IH processing (v2)
To filter out high-frequency interrupts that can be safely ignored.
v2: squash in trivial typo fix for si (Alex)
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@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 7a0ea27..65ed6d3 100644
--- a/drivers/gpu/drm/amd/amdgpu/iceland_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/iceland_ih.c
@@ -208,6 +208,19 @@ static u32 iceland_ih_get_wptr(struct amdgpu_device *adev)
}
/**
+ * iceland_ih_prescreen_iv - prescreen an interrupt vector
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Returns true if the interrupt vector should be further processed.
+ */
+static bool iceland_ih_prescreen_iv(struct amdgpu_device *adev)
+{
+ /* Process all interrupts */
+ return true;
+}
+
+/**
* iceland_ih_decode_iv - decode an interrupt vector
*
* @adev: amdgpu_device pointer
@@ -412,6 +425,7 @@ static const struct amd_ip_funcs iceland_ih_ip_funcs = {
static const struct amdgpu_ih_funcs iceland_ih_funcs = {
.get_wptr = iceland_ih_get_wptr,
+ .prescreen_iv = iceland_ih_prescreen_iv,
.decode_iv = iceland_ih_decode_iv,
.set_rptr = iceland_ih_set_rptr
};