drm/xe: Introduce SR-IOV logging macros

To simplify logging and help identify SR-IOV specific messages
define set of helper macros that will prefix messages based on
the current SR-IOV mode.

Reviewed-by: Lucas De Marchi <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Michal Wajdeczko <[e-mail]>
Signed-off-by: Rodrigo Vivi <[e-mail]>

drivers/gpu/drm/xe/xe_sriov_printk.h

···
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef _XE_SRIOV_PRINTK_H_
+#define _XE_SRIOV_PRINTK_H_
+
+#include <drm/drm_print.h>
+
+#include "xe_device_types.h"
+#include "xe_sriov_types.h"
+
+#define xe_sriov_printk_prefix(xe) \
+	((xe)->sriov.__mode == XE_SRIOV_MODE_PF ? "PF: " : \
+	 (xe)->sriov.__mode == XE_SRIOV_MODE_VF ? "VF: " : "")
+
+#define xe_sriov_printk(xe, _level, fmt, ...) \
+	drm_##_level(&(xe)->drm, "%s" fmt, xe_sriov_printk_prefix(xe), ##__VA_ARGS__)
+
+#define xe_sriov_err(xe, fmt, ...) \
+	xe_sriov_printk((xe), err, fmt, ##__VA_ARGS__)
+
+#define xe_sriov_err_ratelimited(xe, fmt, ...) \
+	xe_sriov_printk((xe), err_ratelimited, fmt, ##__VA_ARGS__)
+
+#define xe_sriov_warn(xe, fmt, ...) \
+	xe_sriov_printk((xe), warn, fmt, ##__VA_ARGS__)
+
+#define xe_sriov_notice(xe, fmt, ...) \
+	xe_sriov_printk((xe), notice, fmt, ##__VA_ARGS__)
+
+#define xe_sriov_info(xe, fmt, ...) \
+	xe_sriov_printk((xe), info, fmt, ##__VA_ARGS__)
+
+#define xe_sriov_dbg(xe, fmt, ...) \
+	xe_sriov_printk((xe), dbg, fmt, ##__VA_ARGS__)
+
+/* for low level noisy debug messages */
+#ifdef CONFIG_DRM_XE_DEBUG_SRIOV
+#define xe_sriov_dbg_verbose(xe, fmt, ...) xe_sriov_dbg(xe, fmt, ##__VA_ARGS__)
+#else
+#define xe_sriov_dbg_verbose(xe, fmt, ...) typecheck(struct xe_device *, (xe))
+#endif
+
+#endif