Commit cd81a70d authored by Jani Nikula's avatar Jani Nikula
Browse files

drm/i915/display: add intel_display_run_as_guest() 



Add intel_display_utils.c for display utilities that need more than a
header.

Start off with intel_display_run_as_guest(). The implementation is
intentional duplication of the i915_utils.h i915_run_as_guest(), with
the idea that it's small enough to not matter.

Reviewed-by: default avatarLuca Coelho <luciano.coelho@intel.com>
Link: https://patch.msgid.link/469f9c41e0c3e3099314a3cf1a7671bf36ec8ffd.1761146196.git.jani.nikula@intel.com


Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
parent 7c15791d

drivers/gpu/drm/i915/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -256,6 +256,7 @@ i915-y += \ 
	display/intel_display_rpm.o \

	display/intel_display_rps.o \

	display/intel_display_snapshot.o \

	display/intel_display_utils.o \

	display/intel_display_wa.o \

	display/intel_dmc.o \

	display/intel_dmc_wl.o \

drivers/gpu/drm/i915/display/intel_display_utils.c

0 → 100644
+18 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: MIT

/* Copyright © 2025 Intel Corporation */



#ifdef CONFIG_X86

#include <asm/hypervisor.h>

#endif



#include "intel_display_utils.h"



bool intel_display_run_as_guest(struct intel_display *display)

{

#if IS_ENABLED(CONFIG_X86)

	return !hypervisor_is_type(X86_HYPER_NATIVE);

#else

	/* Not supported yet */

	return false;

#endif

}

drivers/gpu/drm/i915/display/intel_display_utils.h

+6 −0
Original line number Diff line number Diff line
@@ -4,7 +4,13 @@ 
#ifndef __INTEL_DISPLAY_UTILS__

#define __INTEL_DISPLAY_UTILS__



#include <linux/types.h>



struct intel_display;



#define KHz(x) (1000 * (x))

#define MHz(x) KHz(1000 * (x))



bool intel_display_run_as_guest(struct intel_display *display);



#endif /* __INTEL_DISPLAY_UTILS__ */

drivers/gpu/drm/i915/display/intel_pch.c

+2 −2
Original line number Diff line number Diff line
@@ -5,8 +5,8 @@ 


#include <drm/drm_print.h>



#include "i915_utils.h"

#include "intel_display_core.h"

#include "intel_display_utils.h"

#include "intel_pch.h"



#define INTEL_PCH_DEVICE_ID_MASK		0xff80
@@ -328,7 +328,7 @@ void intel_pch_detect(struct intel_display *display) 
			    "Display disabled, reverting to NOP PCH\n");

		display->pch_type = PCH_NOP;

	} else if (!pch) {

		if (i915_run_as_guest() && HAS_DISPLAY(display)) {

		if (intel_display_run_as_guest(display) && HAS_DISPLAY(display)) {

			intel_virt_detect_pch(display, &id, &pch_type);

			display->pch_type = pch_type;

		} else {

drivers/gpu/drm/xe/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -254,6 +254,7 @@ xe-$(CONFIG_DRM_XE_DISPLAY) += \ 
	i915-display/intel_display_power_map.o \

	i915-display/intel_display_power_well.o \

	i915-display/intel_display_trace.o \

	i915-display/intel_display_utils.o \

	i915-display/intel_display_wa.o \

	i915-display/intel_dkl_phy.o \

	i915-display/intel_dmc.o \