drm/amdgpu: check GFX RAS capability before reset counters

disallow the logical to be enabled on platforms that
don't support gfx ras at this stage, like sriov skus,
dgpu with legacy ras.etc
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Monk Liu <monk.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c

@@ -6306,6 +6306,9 @@ static void gfx_v9_0_reset_ras_error_count(struct amdgpu_device *adev)
 {
 	int i, j, k;
 
+	if (!amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__GFX))
+		return;
+
 	/* read back registers to clear the counters */
 	mutex_lock(&adev->grbm_idx_mutex);
 	for (i = 0; i < ARRAY_SIZE(gfx_v9_0_edc_counter_regs); i++) {

drivers/gpu/drm/amd/amdgpu/gfx_v9_4.c

@@ -897,6 +897,9 @@ void gfx_v9_4_reset_ras_error_count(struct amdgpu_device *adev)
 {
 	int i, j, k;
 
+	if (!amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__GFX))
+		return;
+
 	mutex_lock(&adev->grbm_idx_mutex);
 	for (i = 0; i < ARRAY_SIZE(gfx_v9_4_edc_counter_regs); i++) {
 		for (j = 0; j < gfx_v9_4_edc_counter_regs[i].se_num; j++) {