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 10 struct 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 28 bool intel_display_run_as_guest(struct intel_display *display); 29 bool intel_display_vtd_active(struct intel_display *display); 30 31 #endif /* __INTEL_DISPLAY_UTILS__ */ 32