linux/drivers/gpu/drm/i915/display/intel_display_snapshot.c
Ville Syrjälä c778db2887 drm/i915/overlay: Remove GPU hang snapshot stuff
The overlay snapshot stuff is a bit annoying because some of
it more or less of belongs on the gt side, and some on the
display side. Remove the whole thing to avoid having to deal
with it when splitting the overlay code around the i915
vs. display boundary. I don't think I've ever actually used
this for anything, so no real loss from my POV. And it can
always be resurrected later should the need arise.

v2: Rebase due to kmalloc_obj()

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260226100738.29997-2-ville.syrjala@linux.intel.com
2026-02-27 10:13:00 +02:00

76 lines
1.9 KiB
C

// SPDX-License-Identifier: MIT
/* Copyright © 2024 Intel Corporation */
#include <linux/slab.h>
#include <drm/drm_drv.h>
#include "intel_display_core.h"
#include "intel_display_device.h"
#include "intel_display_irq.h"
#include "intel_display_params.h"
#include "intel_display_snapshot.h"
#include "intel_dmc.h"
#include "intel_overlay.h"
struct intel_display_snapshot {
struct intel_display *display;
struct intel_display_device_info info;
struct intel_display_runtime_info runtime_info;
struct intel_display_params params;
struct intel_dmc_snapshot *dmc;
struct intel_display_irq_snapshot *irq;
};
struct intel_display_snapshot *intel_display_snapshot_capture(struct intel_display *display)
{
struct intel_display_snapshot *snapshot;
snapshot = kzalloc_obj(*snapshot, GFP_ATOMIC);
if (!snapshot)
return NULL;
snapshot->display = display;
memcpy(&snapshot->info, DISPLAY_INFO(display), sizeof(snapshot->info));
memcpy(&snapshot->runtime_info, DISPLAY_RUNTIME_INFO(display),
sizeof(snapshot->runtime_info));
intel_display_params_copy(&snapshot->params);
snapshot->irq = intel_display_irq_snapshot_capture(display);
snapshot->dmc = intel_dmc_snapshot_capture(display);
return snapshot;
}
void intel_display_snapshot_print(const struct intel_display_snapshot *snapshot,
struct drm_printer *p)
{
struct intel_display *display;
if (!snapshot)
return;
display = snapshot->display;
intel_display_device_info_print(&snapshot->info, &snapshot->runtime_info, p);
intel_display_params_dump(&snapshot->params, display->drm->driver->name, p);
intel_display_irq_snapshot_print(snapshot->irq, p);
intel_dmc_snapshot_print(snapshot->dmc, p);
}
void intel_display_snapshot_free(struct intel_display_snapshot *snapshot)
{
if (!snapshot)
return;
intel_display_params_free(&snapshot->params);
kfree(snapshot->irq);
kfree(snapshot->dmc);
kfree(snapshot);
}