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drm/xe/display: add xe_display_pm_runtime_resume_early()

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Add new display runtime PM hook xe_display_pm_runtime_resume_early(), to
be called before IRQ resume. This is initially a no-op placeholder.

Add comments on the timing relative to irq suspend/resume to all the
runtime PM hooks.

v2: Add stub for CONFIG_DRM_XE_DISPLAY=n

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260702071457.2985893-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Jani Nikula
2026-07-02 10:14:57 +03:00
parent 402e84752c
commit fdd48cf3fc
3 changed files with 17 additions and 0 deletions
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13
drivers/gpu/drm/xe/display/xe_display.c
View File

@@ -349,6 +349,7 @@ static void xe_display_disable_d3cold(struct xe_device *xe)
intel_display_driver_runtime_pm_enable(display);
}
/* before irq suspend */
void xe_display_pm_runtime_suspend(struct xe_device *xe)
{
struct intel_display *display = xe->display;
@@ -364,6 +365,7 @@ void xe_display_pm_runtime_suspend(struct xe_device *xe)
intel_hpd_poll_enable(display);
}
/* after irq suspend */
void xe_display_pm_runtime_suspend_late(struct xe_device *xe)
{
struct intel_display *display = xe->display;
@@ -382,6 +384,17 @@ void xe_display_pm_runtime_suspend_late(struct xe_device *xe)
intel_dmc_wl_flush_release_work(display);
}
/* before irq resume */
void xe_display_pm_runtime_resume_early(struct xe_device *xe)
{
if (!xe->info.probe_display)
return;
if (xe->d3cold.allowed)
return;
}
/* after irq resume */
void xe_display_pm_runtime_resume(struct xe_device *xe)
{
struct intel_display *display = xe->display;

2
drivers/gpu/drm/xe/display/xe_display.h
View File

@@ -43,6 +43,7 @@ void xe_display_pm_resume_early(struct xe_device *xe);
void xe_display_pm_resume(struct xe_device *xe);
void xe_display_pm_runtime_suspend(struct xe_device *xe);
void xe_display_pm_runtime_suspend_late(struct xe_device *xe);
void xe_display_pm_runtime_resume_early(struct xe_device *xe);
void xe_display_pm_runtime_resume(struct xe_device *xe);
#define XE_DISPLAY_DRIVER_FEATURES (DRIVER_MODESET | DRIVER_ATOMIC)
@@ -80,6 +81,7 @@ static inline void xe_display_pm_resume_early(struct xe_device *xe) {}
static inline void xe_display_pm_resume(struct xe_device *xe) {}
static inline void xe_display_pm_runtime_suspend(struct xe_device *xe) {}
static inline void xe_display_pm_runtime_suspend_late(struct xe_device *xe) {}
static inline void xe_display_pm_runtime_resume_early(struct xe_device *xe) {}
static inline void xe_display_pm_runtime_resume(struct xe_device *xe) {}
#endif /* CONFIG_DRM_XE_DISPLAY */

2
drivers/gpu/drm/xe/xe_pm.c
View File

@@ -700,6 +700,8 @@ int xe_pm_runtime_resume(struct xe_device *xe)
if (xe->d3cold.allowed)
xe_sysctrl_pm_resume(xe);
xe_display_pm_runtime_resume_early(xe);
xe_irq_resume(xe);
for_each_gt(gt, xe, id) {