drm/amdgpu: add print support for gfx9 ipdump

Add support of gfx9 ipdump print so devcoredump
could trigger it to dump the captured registers
in devcoredump.
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -6946,6 +6946,22 @@ static void gfx_v9_0_emit_wave_limit(struct amdgpu_ring *ring, bool enable)
 	}
 }
 
+static void gfx_v9_ip_print(void *handle, struct drm_printer *p)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	uint32_t i;
+	uint32_t reg_count = ARRAY_SIZE(gc_reg_list_9);
+
+	if (!adev->gfx.ip_dump_core)
+		return;
+
+	for (i = 0; i < reg_count; i++)
+		drm_printf(p, "%-50s \t 0x%08x\n",
+			   gc_reg_list_9[i].reg_name,
+			   adev->gfx.ip_dump_core[i]);
+
+}
+
 static void gfx_v9_ip_dump(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@@ -6979,7 +6995,7 @@ static const struct amd_ip_funcs gfx_v9_0_ip_funcs = {
 	.set_powergating_state = gfx_v9_0_set_powergating_state,
 	.get_clockgating_state = gfx_v9_0_get_clockgating_state,
 	.dump_ip_state = gfx_v9_ip_dump,
-	.print_ip_state = NULL,
+	.print_ip_state = gfx_v9_ip_print,
 };
 
 static const struct amdgpu_ring_funcs gfx_v9_0_ring_funcs_gfx = {