Add display specific wrappers around the i915 and xe dedicated runtime
PM interfaces. There are no conversions here, just the wrappers.
Implement with_intel_display_rpm() without needing to provide a local
variable, which neatly narrows the scope and hides the type of the
wakeref cookie.
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/i915/Makefile | 1 +
.../gpu/drm/i915/display/intel_display_rpm.c | 68 ++++++++++++++++++
.../gpu/drm/i915/display/intel_display_rpm.h | 37 ++++++++++
drivers/gpu/drm/xe/Makefile | 1 +
drivers/gpu/drm/xe/display/xe_display_rpm.c | 71 +++++++++++++++++++
5 files changed, 178 insertions(+)
create mode 100644 drivers/gpu/drm/i915/display/intel_display_rpm.c
create mode 100644 drivers/gpu/drm/i915/display/intel_display_rpm.h
create mode 100644 drivers/gpu/drm/xe/display/xe_display_rpm.c
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index ed05b131ed3a..c8fc271b33b7 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -247,6 +247,7 @@ i915-y += \
display/intel_display_power_map.o \
display/intel_display_power_well.o \
display/intel_display_reset.o \
+ display/intel_display_rpm.o \
display/intel_display_rps.o \
display/intel_display_snapshot.o \
display/intel_display_wa.o \
diff --git a/drivers/gpu/drm/i915/display/intel_display_rpm.c b/drivers/gpu/drm/i915/display/intel_display_rpm.c
new file mode 100644
index 000000000000..48da67dd0136
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_display_rpm.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: MIT
+/* Copyright © 2025 Intel Corporation */
+
+#include "i915_drv.h"
+#include "intel_display_rpm.h"
+#include "intel_runtime_pm.h"
+
+static struct intel_runtime_pm *display_to_rpm(struct intel_display *display)
+{
+ struct drm_i915_private *i915 = to_i915(display->drm);
+
+ return &i915->runtime_pm;
+}
+
+struct ref_tracker *intel_display_rpm_get_raw(struct intel_display *display)
+{
+ return intel_runtime_pm_get_raw(display_to_rpm(display));
+}
+
+void intel_display_rpm_put_raw(struct intel_display *display, struct ref_tracker *wakeref)
+{
+ intel_runtime_pm_put_raw(display_to_rpm(display), wakeref);
+}
+
+struct ref_tracker *intel_display_rpm_get(struct intel_display *display)
+{
+ return intel_runtime_pm_get(display_to_rpm(display));
+}
+
+struct ref_tracker *intel_display_rpm_get_if_in_use(struct intel_display *display)
+{
+ return intel_runtime_pm_get_if_in_use(display_to_rpm(display));
+}
+
+struct ref_tracker *intel_display_rpm_get_noresume(struct intel_display *display)
+{
+ return intel_runtime_pm_get_noresume(display_to_rpm(display));
+}
+
+void intel_display_rpm_put(struct intel_display *display, struct ref_tracker *wakeref)
+{
+ intel_runtime_pm_put(display_to_rpm(display), wakeref);
+}
+
+void intel_display_rpm_put_unchecked(struct intel_display *display)
+{
+ intel_runtime_pm_put_unchecked(display_to_rpm(display));
+}
+
+bool intel_display_rpm_suspended(struct intel_display *display)
+{
+ return intel_runtime_pm_suspended(display_to_rpm(display));
+}
+
+void assert_display_rpm_held(struct intel_display *display)
+{
+ assert_rpm_wakelock_held(display_to_rpm(display));
+}
+
+void intel_display_rpm_assert_block(struct intel_display *display)
+{
+ disable_rpm_wakeref_asserts(display_to_rpm(display));
+}
+
+void intel_display_rpm_assert_unblock(struct intel_display *display)
+{
+ enable_rpm_wakeref_asserts(display_to_rpm(display));
+}
diff --git a/drivers/gpu/drm/i915/display/intel_display_rpm.h b/drivers/gpu/drm/i915/display/intel_display_rpm.h
new file mode 100644
index 000000000000..6ef48515f84b
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_display_rpm.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright © 2025 Intel Corporation */
+
+#ifndef __INTEL_DISPLAY_RPM__
+#define __INTEL_DISPLAY_RPM__
+
+#include <linux/types.h>
+
+struct intel_display;
+struct ref_tracker;
+
+struct ref_tracker *intel_display_rpm_get(struct intel_display *display);
+void intel_display_rpm_put(struct intel_display *display, struct ref_tracker *wakeref);
+
+#define __with_intel_display_rpm(__display, __wakeref) \
+ for (struct ref_tracker *(__wakeref) = intel_display_rpm_get(__display); (__wakeref); \
+ intel_display_rpm_put((__display), (__wakeref)), (__wakeref) = NULL)
+
+#define with_intel_display_rpm(__display) \
+ __with_intel_display_rpm((__display), __UNIQUE_ID(wakeref))
+
+/* Only for special cases. */
+bool intel_display_rpm_suspended(struct intel_display *display);
+
+void assert_display_rpm_held(struct intel_display *display);
+void intel_display_rpm_assert_block(struct intel_display *display);
+void intel_display_rpm_assert_unblock(struct intel_display *display);
+
+/* Only for display power implementation. */
+struct ref_tracker *intel_display_rpm_get_raw(struct intel_display *display);
+void intel_display_rpm_put_raw(struct intel_display *display, struct ref_tracker *wakeref);
+
+struct ref_tracker *intel_display_rpm_get_if_in_use(struct intel_display *display);
+struct ref_tracker *intel_display_rpm_get_noresume(struct intel_display *display);
+void intel_display_rpm_put_unchecked(struct intel_display *display);
+
+#endif /* __INTEL_DISPLAY_RPM__ */
diff --git a/drivers/gpu/drm/xe/Makefile b/drivers/gpu/drm/xe/Makefile
index 9699b08585f7..cd464fe26eb8 100644
--- a/drivers/gpu/drm/xe/Makefile
+++ b/drivers/gpu/drm/xe/Makefile
@@ -185,6 +185,7 @@ xe-$(CONFIG_DRM_XE_DISPLAY) += \
display/intel_fbdev_fb.o \
display/xe_display.o \
display/xe_display_misc.o \
+ display/xe_display_rpm.o \
display/xe_display_rps.o \
display/xe_display_wa.o \
display/xe_dsb_buffer.o \
diff --git a/drivers/gpu/drm/xe/display/xe_display_rpm.c b/drivers/gpu/drm/xe/display/xe_display_rpm.c
new file mode 100644
index 000000000000..1955153aadba
--- /dev/null
+++ b/drivers/gpu/drm/xe/display/xe_display_rpm.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: MIT
+/* Copyright © 2025 Intel Corporation */
+
+#include "intel_display_rpm.h"
+#include "xe_device_types.h"
+#include "xe_pm.h"
+
+static struct xe_device *display_to_xe(struct intel_display *display)
+{
+ return container_of(display, struct xe_device, display);
+}
+
+struct ref_tracker *intel_display_rpm_get_raw(struct intel_display *display)
+{
+ return intel_display_rpm_get(display);
+}
+
+void intel_display_rpm_put_raw(struct intel_display *display, struct ref_tracker *wakeref)
+{
+ intel_display_rpm_put(display, wakeref);
+}
+
+struct ref_tracker *intel_display_rpm_get(struct intel_display *display)
+{
+ return xe_pm_runtime_resume_and_get(display_to_xe(display)) ? INTEL_WAKEREF_DEF : NULL;
+}
+
+struct ref_tracker *intel_display_rpm_get_if_in_use(struct intel_display *display)
+{
+ return xe_pm_runtime_get_if_in_use(display_to_xe(display)) ? INTEL_WAKEREF_DEF : NULL;
+}
+
+struct ref_tracker *intel_display_rpm_get_noresume(struct intel_display *display)
+{
+ xe_pm_runtime_get_noresume(display_to_xe(display));
+
+ return INTEL_WAKEREF_DEF;
+}
+
+void intel_display_rpm_put(struct intel_display *display, struct ref_tracker *wakeref)
+{
+ if (wakeref)
+ xe_pm_runtime_put(display_to_xe(display));
+}
+
+void intel_display_rpm_put_unchecked(struct intel_display *display)
+{
+ xe_pm_runtime_put(display_to_xe(display));
+}
+
+bool intel_display_rpm_suspended(struct intel_display *display)
+{
+ struct xe_device *xe = display_to_xe(display);
+
+ return pm_runtime_suspended(xe->drm.dev);
+}
+
+void assert_display_rpm_held(struct intel_display *display)
+{
+ /* FIXME */
+}
+
+void intel_display_rpm_assert_block(struct intel_display *display)
+{
+ /* FIXME */
+}
+
+void intel_display_rpm_assert_unblock(struct intel_display *display)
+{
+ /* FIXME */
+}
--
2.39.5
