intel_display_utils.h

 1/* SPDX-License-Identifier: MIT */
 2/* Copyright © 2025 Intel Corporation */
 3
 4#ifndef __INTEL_DISPLAY_UTILS__
 5#define __INTEL_DISPLAY_UTILS__
 6
 7#include <linux/bug.h>
 8#include <linux/types.h>
 9
10struct intel_display;
11
12#ifndef MISSING_CASE
13#define MISSING_CASE(x) WARN(1, "Missing case (%s == %ld)\n", \
14			     __stringify(x), (long)(x))
15#endif
16
17#ifndef fetch_and_zero
18#define fetch_and_zero(ptr) ({						\
19	typeof(*ptr) __T = *(ptr);					\
20	*(ptr) = (typeof(*ptr))0;					\
21	__T;								\
22})
23#endif
24
25#define KHz(x) (1000 * (x))
26#define MHz(x) KHz(1000 * (x))
27
28bool intel_display_run_as_guest(struct intel_display *display);
29bool intel_display_vtd_active(struct intel_display *display);
30
31#endif /* __INTEL_DISPLAY_UTILS__ */