1 // SPDX-License-Identifier: MIT 2 /* Copyright © 2024 Intel Corporation */ 3 4 #include <linux/slab.h> 5 6 #include <drm/drm_drv.h> 7 8 #include "intel_display_core.h" 9 #include "intel_display_device.h" 10 #include "intel_display_irq.h" 11 #include "intel_display_params.h" 12 #include "intel_display_snapshot.h" 13 #include "intel_dmc.h" 14 #include "intel_overlay.h" 15 16 struct intel_display_snapshot { 17 struct intel_display *display; 18 19 struct intel_display_device_info info; 20 struct intel_display_runtime_info runtime_info; 21 struct intel_display_params params; 22 struct intel_overlay_snapshot *overlay; 23 struct intel_dmc_snapshot *dmc; 24 struct intel_display_irq_snapshot *irq; 25 }; 26 27 struct intel_display_snapshot *intel_display_snapshot_capture(struct intel_display *display) 28 { 29 struct intel_display_snapshot *snapshot; 30 31 snapshot = kzalloc(sizeof(*snapshot), GFP_ATOMIC); 32 if (!snapshot) 33 return NULL; 34 35 snapshot->display = display; 36 37 memcpy(&snapshot->info, DISPLAY_INFO(display), sizeof(snapshot->info)); 38 memcpy(&snapshot->runtime_info, DISPLAY_RUNTIME_INFO(display), 39 sizeof(snapshot->runtime_info)); 40 41 intel_display_params_copy(&snapshot->params); 42 43 snapshot->irq = intel_display_irq_snapshot_capture(display); 44 snapshot->overlay = intel_overlay_snapshot_capture(display); 45 snapshot->dmc = intel_dmc_snapshot_capture(display); 46 47 return snapshot; 48 } 49 50 void intel_display_snapshot_print(const struct intel_display_snapshot *snapshot, 51 struct drm_printer *p) 52 { 53 struct intel_display *display; 54 55 if (!snapshot) 56 return; 57 58 display = snapshot->display; 59 60 intel_display_device_info_print(&snapshot->info, &snapshot->runtime_info, p); 61 intel_display_params_dump(&snapshot->params, display->drm->driver->name, p); 62 63 intel_display_irq_snapshot_print(snapshot->irq, p); 64 intel_overlay_snapshot_print(snapshot->overlay, p); 65 intel_dmc_snapshot_print(snapshot->dmc, p); 66 } 67 68 void intel_display_snapshot_free(struct intel_display_snapshot *snapshot) 69 { 70 if (!snapshot) 71 return; 72 73 intel_display_params_free(&snapshot->params); 74 75 kfree(snapshot->irq); 76 kfree(snapshot->overlay); 77 kfree(snapshot->dmc); 78 kfree(snapshot); 79 } 80