drm/amdgpu/gfx11: add FW version check for new CP GFX shadow feature

Use this to determine if we support the new SET_Q_PREEMPTION_MODE
packet.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h

@@ -380,6 +380,8 @@ struct amdgpu_gfx {
 	struct amdgpu_ring		sw_gfx_ring[AMDGPU_MAX_SW_GFX_RINGS];
 	struct amdgpu_ring_mux          muxer;
 
+	bool				cp_gfx_shadow; /* for gfx11 */
+
 	enum amdgpu_gfx_partition	partition_mode;
 	uint32_t			num_xcd;
 	uint32_t			num_xcc_per_xcp;

drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c

@@ -463,6 +463,18 @@ static int gfx_v11_0_init_toc_microcode(struct amdgpu_device *adev, const char *
 	return err;
 }
 
+static void gfx_v11_0_check_fw_cp_gfx_shadow(struct amdgpu_device *adev)
+{
+	switch (adev->ip_versions[GC_HWIP][0]) {
+	case IP_VERSION(11, 0, 0):
+	case IP_VERSION(11, 0, 2):
+	case IP_VERSION(11, 0, 3):
+	default:
+		adev->gfx.cp_gfx_shadow = false;
+		break;
+	}
+}
+
 static int gfx_v11_0_init_microcode(struct amdgpu_device *adev)
 {
 	char fw_name[40];
@@ -539,6 +551,7 @@ static int gfx_v11_0_init_microcode(struct amdgpu_device *adev)
 	/* only one MEC for gfx 11.0.0. */
 	adev->gfx.mec2_fw = NULL;
 
+	gfx_v11_0_check_fw_cp_gfx_shadow(adev);
 out:
 	if (err) {
 		amdgpu_ucode_release(&adev->gfx.pfp_fw);