drm/amdgpu: pull ras controller int status only when ras enabled

ras_controller_irq and athub_err_event_irq are only registered
when PCIE_BIF ras is marked as supported. as the result, the driver
also just need pull the int status in such case.
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: John Clements <john.clements@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -55,6 +55,7 @@
 #include "amdgpu_connectors.h"
 #include "amdgpu_trace.h"
 #include "amdgpu_amdkfd.h"
+#include "amdgpu_ras.h"
 
 #include <linux/pm_runtime.h>
 
@@ -162,6 +163,7 @@ irqreturn_t amdgpu_irq_handler(int irq, void *arg)
 	 * register to check whether the interrupt is triggered or not, and properly
 	 * ack the interrupt if it is there
 	 */
+	if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__PCIE_BIF)) {
 		if (adev->nbio.funcs &&
 		    adev->nbio.funcs->handle_ras_controller_intr_no_bifring)
 			adev->nbio.funcs->handle_ras_controller_intr_no_bifring(adev);
@@ -169,6 +171,7 @@ irqreturn_t amdgpu_irq_handler(int irq, void *arg)
 		if (adev->nbio.funcs &&
 		    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;
 }