forked from ~ljy/RK356X_SDK_RELEASE
blame | history | patch | commit | commitdiff
hc
2024-01-04 1543e317f1da31b75942316931e8f491a8920811 
 kernel/drivers/gpu/arm/bifrost/csf/mali_kbase_csf_firmware.h
....@@ -1,7 +1,7 @@
11 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
22 /*
33  *
4
- * (C) COPYRIGHT 2018-2021 ARM Limited. All rights reserved.
4
+ * (C) COPYRIGHT 2018-2022 ARM Limited. All rights reserved.
55  *
66  * This program is free software and is provided to you under the terms of the
77  * GNU General Public License version 2 as published by the Free Software
....@@ -23,7 +23,7 @@
2323 #define _KBASE_CSF_FIRMWARE_H_
2424 
2525 #include "device/mali_kbase_device.h"
26
-#include <uapi/gpu/arm/bifrost/csf/mali_gpu_csf_registers.h>
26
+#include <csf/mali_kbase_csf_registers.h>
2727 
2828 /*
2929  * PAGE_KERNEL_RO was only defined on 32bit ARM in 4.19 in:
....@@ -75,11 +75,8 @@
7575 #define MAX_SUPPORTED_CSGS 31
7676 /* GROUP_STREAM_NUM: At least 8 CSs per CSG, but no more than 32 */
7777 #define MIN_SUPPORTED_STREAMS_PER_GROUP 8
78
-/* Maximum CSs per csg. */
78
+/* MAX_SUPPORTED_STREAMS_PER_GROUP: Maximum CSs per csg. */
7979 #define MAX_SUPPORTED_STREAMS_PER_GROUP 32
80
-
81
-/* Waiting timeout for status change acknowledgment, in milliseconds */
82
-#define CSF_FIRMWARE_TIMEOUT_MS (3000) /* Relaxed to 3000ms from 800ms due to Android */
8380 
8481 struct kbase_device;
8582 
....@@ -327,36 +324,25 @@
327324 u32 kbase_csf_firmware_global_output(
328325 	const struct kbase_csf_global_iface *iface, u32 offset);
329326 
330
-/* Calculate the offset to the Hw doorbell page corresponding to the
331
- * doorbell number.
327
+/**
328
+ * kbase_csf_ring_doorbell() - Ring the doorbell
329
+ *
330
+ * @kbdev:       An instance of the GPU platform device
331
+ * @doorbell_nr: Index of the HW doorbell page
332332  */
333
-static u32 csf_doorbell_offset(int doorbell_nr)
334
-{
335
-	WARN_ON(doorbell_nr >= CSF_NUM_DOORBELL);
336
-
337
-	return CSF_HW_DOORBELL_PAGE_OFFSET +
338
-		(doorbell_nr * CSF_HW_DOORBELL_PAGE_SIZE);
339
-}
340
-
341
-static inline void kbase_csf_ring_doorbell(struct kbase_device *kbdev,
342
-					   int doorbell_nr)
343
-{
344
-	WARN_ON(doorbell_nr >= CSF_NUM_DOORBELL);
345
-
346
-	kbase_reg_write(kbdev, csf_doorbell_offset(doorbell_nr), (u32)1);
347
-}
333
+void kbase_csf_ring_doorbell(struct kbase_device *kbdev, int doorbell_nr);
348334 
349335 /**
350336  * kbase_csf_read_firmware_memory - Read a value in a GPU address
337
+ *
338
+ * @kbdev:     Device pointer
339
+ * @gpu_addr:  GPU address to read
340
+ * @value:     output pointer to which the read value will be written.
351341  *
352342  * This function read a value in a GPU address that belongs to
353343  * a private firmware memory region. The function assumes that the location
354344  * is not permanently mapped on the CPU address space, therefore it maps it
355345  * and then unmaps it to access it independently.
356
- *
357
- * @kbdev:     Device pointer
358
- * @gpu_addr:  GPU address to read
359
- * @value:     output pointer to which the read value will be written.
360346  */
361347 void kbase_csf_read_firmware_memory(struct kbase_device *kbdev,
362348 	u32 gpu_addr, u32 *value);
....@@ -364,20 +350,58 @@
364350 /**
365351  * kbase_csf_update_firmware_memory - Write a value in a GPU address
366352  *
353
+ * @kbdev:     Device pointer
354
+ * @gpu_addr:  GPU address to write
355
+ * @value:     Value to write
356
+ *
367357  * This function writes a given value in a GPU address that belongs to
368358  * a private firmware memory region. The function assumes that the destination
369359  * is not permanently mapped on the CPU address space, therefore it maps it
370360  * and then unmaps it to access it independently.
371
- *
372
- * @kbdev:     Device pointer
373
- * @gpu_addr:  GPU address to write
374
- * @value:     Value to write
375361  */
376362 void kbase_csf_update_firmware_memory(struct kbase_device *kbdev,
377363 	u32 gpu_addr, u32 value);
378364 
379365 /**
380
- * kbase_csf_firmware_early_init() - Early initializatin for the firmware.
366
+ * kbase_csf_read_firmware_memory_exe - Read a value in a GPU address in the
367
+ *                                      region of its final execution location.
368
+ *
369
+ * @kbdev:     Device pointer
370
+ * @gpu_addr:  GPU address to read
371
+ * @value:     Output pointer to which the read value will be written
372
+ *
373
+ * This function read a value in a GPU address that belongs to a private loaded
374
+ * firmware memory region based on its final execution location. The function
375
+ * assumes that the location is not permanently mapped on the CPU address space,
376
+ * therefore it maps it and then unmaps it to access it independently. This function
377
+ * needs to be used when accessing firmware memory regions which will be moved to
378
+ * their final execution location during firmware boot using an address based on the
379
+ * final execution location.
380
+ */
381
+void kbase_csf_read_firmware_memory_exe(struct kbase_device *kbdev,
382
+	u32 gpu_addr, u32 *value);
383
+
384
+/**
385
+ * kbase_csf_update_firmware_memory_exe - Write a value in a GPU address in the
386
+ *                                        region of its final execution location.
387
+ *
388
+ * @kbdev:     Device pointer
389
+ * @gpu_addr:  GPU address to write
390
+ * @value:     Value to write
391
+ *
392
+ * This function writes a value in a GPU address that belongs to a private loaded
393
+ * firmware memory region based on its final execution location. The function
394
+ * assumes that the location is not permanently mapped on the CPU address space,
395
+ * therefore it maps it and then unmaps it to access it independently. This function
396
+ * needs to be used when accessing firmware memory regions which will be moved to
397
+ * their final execution location during firmware boot using an address based on the
398
+ * final execution location.
399
+ */
400
+void kbase_csf_update_firmware_memory_exe(struct kbase_device *kbdev,
401
+	u32 gpu_addr, u32 value);
402
+
403
+/**
404
+ * kbase_csf_firmware_early_init() - Early initialization for the firmware.
381405  * @kbdev: Kbase device
382406  *
383407  * Initialize resources related to the firmware. Must be called at kbase probe.
....@@ -387,43 +411,109 @@
387411 int kbase_csf_firmware_early_init(struct kbase_device *kbdev);
388412 
389413 /**
390
- * kbase_csf_firmware_init() - Load the firmware for the CSF MCU
414
+ * kbase_csf_firmware_early_term() - Terminate resources related to the firmware
415
+ *                                   after the firmware unload has been done.
416
+ *
417
+ * @kbdev: Device pointer
418
+ *
419
+ * This should be called only when kbase probe fails or gets rmmoded.
420
+ */
421
+void kbase_csf_firmware_early_term(struct kbase_device *kbdev);
422
+
423
+/**
424
+ * kbase_csf_firmware_late_init() - Late initialization for the firmware.
425
+ * @kbdev: Kbase device
426
+ *
427
+ * Initialize resources related to the firmware. But must be called after
428
+ * backend late init is done. Must be used at probe time only.
429
+ *
430
+ * Return: 0 if successful, negative error code on failure
431
+ */
432
+int kbase_csf_firmware_late_init(struct kbase_device *kbdev);
433
+
434
+/**
435
+ * kbase_csf_firmware_load_init() - Load the firmware for the CSF MCU
391436  * @kbdev: Kbase device
392437  *
393438  * Request the firmware from user space and load it into memory.
394439  *
395440  * Return: 0 if successful, negative error code on failure
396441  */
397
-int kbase_csf_firmware_init(struct kbase_device *kbdev);
442
+int kbase_csf_firmware_load_init(struct kbase_device *kbdev);
398443 
399444 /**
400
- * kbase_csf_firmware_term() - Unload the firmware
445
+ * kbase_csf_firmware_unload_term() - Unload the firmware
401446  * @kbdev: Kbase device
402447  *
403
- * Frees the memory allocated by kbase_csf_firmware_init()
448
+ * Frees the memory allocated by kbase_csf_firmware_load_init()
404449  */
405
-void kbase_csf_firmware_term(struct kbase_device *kbdev);
450
+void kbase_csf_firmware_unload_term(struct kbase_device *kbdev);
451
+
452
+#if IS_ENABLED(CONFIG_MALI_CORESIGHT)
453
+/**
454
+ * kbase_csf_firmware_mcu_register_write - Write to MCU register
455
+ *
456
+ * @kbdev:    Instance of a gpu platform device that implements a csf interface.
457
+ * @reg_addr: Register address to write into
458
+ * @reg_val:  Value to be written
459
+ *
460
+ * Write a desired value to a register in MCU address space.
461
+ *
462
+ * return: 0 on success, or negative on failure.
463
+ */
464
+int kbase_csf_firmware_mcu_register_write(struct kbase_device *const kbdev, u32 const reg_addr,
465
+					  u32 const reg_val);
466
+/**
467
+ * kbase_csf_firmware_mcu_register_read - Read from MCU register
468
+ *
469
+ * @kbdev:    Instance of a gpu platform device that implements a csf interface.
470
+ * @reg_addr: Register address to read from
471
+ * @reg_val:  Value as present in reg_addr register
472
+ *
473
+ * Read a value from MCU address space.
474
+ *
475
+ * return: 0 on success, or negative on failure.
476
+ */
477
+int kbase_csf_firmware_mcu_register_read(struct kbase_device *const kbdev, u32 const reg_addr,
478
+					 u32 *reg_val);
479
+
480
+/**
481
+ * kbase_csf_firmware_mcu_register_poll - Poll MCU register
482
+ *
483
+ * @kbdev:    Instance of a gpu platform device that implements a csf interface.
484
+ * @reg_addr: Register address to read from
485
+ * @val_mask: Value to mask the read value for comparison
486
+ * @reg_val:  Value to be compared against
487
+ *
488
+ * Continue to read a value from MCU address space until it matches given mask and value.
489
+ *
490
+ * return: 0 on success, or negative on failure.
491
+ */
492
+int kbase_csf_firmware_mcu_register_poll(struct kbase_device *const kbdev, u32 const reg_addr,
493
+					 u32 const val_mask, u32 const reg_val);
494
+#endif /* IS_ENABLED(CONFIG_MALI_CORESIGHT) */
406495 
407496 /**
408497  * kbase_csf_firmware_ping - Send the ping request to firmware.
409498  *
410
- * The function sends the ping request to firmware.
411
- *
412499  * @kbdev: Instance of a GPU platform device that implements a CSF interface.
500
+ *
501
+ * The function sends the ping request to firmware.
413502  */
414503 void kbase_csf_firmware_ping(struct kbase_device *kbdev);
415504 
416505 /**
417506  * kbase_csf_firmware_ping_wait - Send the ping request to firmware and waits.
418507  *
508
+ * @kbdev: Instance of a GPU platform device that implements a CSF interface.
509
+ * @wait_timeout_ms: Timeout to get the acknowledgment for PING request from FW.
510
+ *
419511  * The function sends the ping request to firmware and waits to confirm it is
420512  * alive.
421513  *
422
- * @kbdev: Instance of a GPU platform device that implements a CSF interface.
423
- *
424514  * Return: 0 on success, or negative on failure.
425515  */
426
-int kbase_csf_firmware_ping_wait(struct kbase_device *kbdev);
516
+int kbase_csf_firmware_ping_wait(struct kbase_device *kbdev, unsigned int wait_timeout_ms);
427517 
428518 /**
429519  * kbase_csf_firmware_set_timeout - Set a hardware endpoint progress timeout.
....@@ -442,17 +532,37 @@
442532 
443533 /**
444534  * kbase_csf_enter_protected_mode - Send the Global request to firmware to
445
- *                                  enter protected mode and wait for its
446
- *                                  completion.
535
+ *                                  enter protected mode.
447536  *
448537  * @kbdev: Instance of a GPU platform device that implements a CSF interface.
538
+ *
539
+ * The function must be called with kbdev->csf.scheduler.interrupt_lock held
540
+ * and it does not wait for the protected mode entry to complete.
449541  */
450542 void kbase_csf_enter_protected_mode(struct kbase_device *kbdev);
451543 
544
+/**
545
+ * kbase_csf_wait_protected_mode_enter - Wait for the completion of PROTM_ENTER
546
+ *                                       Global request sent to firmware.
547
+ *
548
+ * @kbdev: Instance of a GPU platform device that implements a CSF interface.
549
+ *
550
+ * This function needs to be called after kbase_csf_enter_protected_mode() to
551
+ * wait for the GPU to actually enter protected mode. GPU reset is triggered if
552
+ * the wait is unsuccessful.
553
+ *
554
+ * Return: 0 on success, or negative on failure.
555
+ */
556
+int kbase_csf_wait_protected_mode_enter(struct kbase_device *kbdev);
557
+
452558 static inline bool kbase_csf_firmware_mcu_halted(struct kbase_device *kbdev)
453559 {
560
+#if IS_ENABLED(CONFIG_MALI_BIFROST_NO_MALI)
561
+	return true;
562
+#else
454563 	return (kbase_reg_read(kbdev, GPU_CONTROL_REG(MCU_STATUS)) ==
455564 		MCU_STATUS_HALTED);
565
+#endif /* CONFIG_MALI_BIFROST_NO_MALI */
456566 }
457567 
458568 /**
....@@ -470,24 +580,14 @@
470580  *
471581  * @kbdev: Instance of a GPU platform device that implements a CSF interface.
472582  */
473
-static inline void kbase_csf_firmware_enable_mcu(struct kbase_device *kbdev)
474
-{
475
-	/* Trigger the boot of MCU firmware, Use the AUTO mode as
476
-	 * otherwise on fast reset, to exit protected mode, MCU will
477
-	 * not reboot by itself to enter normal mode.
478
-	 */
479
-	kbase_reg_write(kbdev, GPU_CONTROL_REG(MCU_CONTROL), MCU_CNTRL_AUTO);
480
-}
583
+void kbase_csf_firmware_enable_mcu(struct kbase_device *kbdev);
481584 
482585 /**
483586  * kbase_csf_firmware_disable_mcu - Send the command to disable MCU
484587  *
485588  * @kbdev: Instance of a GPU platform device that implements a CSF interface.
486589  */
487
-static inline void kbase_csf_firmware_disable_mcu(struct kbase_device *kbdev)
488
-{
489
-	kbase_reg_write(kbdev, GPU_CONTROL_REG(MCU_CONTROL), MCU_CNTRL_DISABLE);
490
-}
590
+void kbase_csf_firmware_disable_mcu(struct kbase_device *kbdev);
491591 
492592 /**
493593  * kbase_csf_firmware_disable_mcu_wait - Wait for the MCU to reach disabled
....@@ -497,10 +597,30 @@
497597  */
498598 void kbase_csf_firmware_disable_mcu_wait(struct kbase_device *kbdev);
499599 
600
+#ifdef KBASE_PM_RUNTIME
500601 /**
501
- * kbase_trigger_firmware_reload - Trigger the reboot of MCU firmware, for the
502
- *                                 cold boot case firmware image would be
503
- *                                 reloaded from filesystem into memory.
602
+ * kbase_csf_firmware_trigger_mcu_sleep - Send the command to put MCU in sleep
603
+ *                                        state.
604
+ *
605
+ * @kbdev: Instance of a GPU platform device that implements a CSF interface.
606
+ */
607
+void kbase_csf_firmware_trigger_mcu_sleep(struct kbase_device *kbdev);
608
+
609
+/**
610
+ * kbase_csf_firmware_is_mcu_in_sleep - Check if sleep request has completed
611
+ *                                      and MCU has halted.
612
+ *
613
+ * @kbdev: Instance of a GPU platform device that implements a CSF interface.
614
+ *
615
+ * Return: true if sleep request has completed, otherwise false.
616
+ */
617
+bool kbase_csf_firmware_is_mcu_in_sleep(struct kbase_device *kbdev);
618
+#endif
619
+
620
+/**
621
+ * kbase_csf_firmware_trigger_reload() - Trigger the reboot of MCU firmware, for
622
+ *                                       the cold boot case firmware image would
623
+ *                                       be reloaded from filesystem into memory.
504624  *
505625  * @kbdev: Instance of a GPU platform device that implements a CSF interface.
506626  */
....@@ -529,9 +649,9 @@
529649  *                      requests, sent after the reboot of MCU firmware, have
530650  *                      completed or not.
531651  *
532
- * Return: true if the Global configuration requests completed otherwise false.
533
- *
534652  * @kbdev: Instance of a GPU platform device that implements a CSF interface.
653
+ *
654
+ * Return: true if the Global configuration requests completed otherwise false.
535655  */
536656 bool kbase_csf_firmware_global_reinit_complete(struct kbase_device *kbdev);
537657 
....@@ -556,17 +676,16 @@
556676  *                  request has completed or not, that was sent to update
557677  *                  the core attributes.
558678  *
679
+ * @kbdev: Instance of a GPU platform device that implements a CSF interface.
680
+ *
559681  * Return: true if the Global configuration request to update the core
560682  *         attributes has completed, otherwise false.
561
- *
562
- * @kbdev: Instance of a GPU platform device that implements a CSF interface.
563683  */
564684 bool kbase_csf_firmware_core_attr_updated(struct kbase_device *kbdev);
565685 
566686 /**
567
- * Request the global control block of CSF interface capabilities
568
- *
569
- * Return: Total number of CSs, summed across all groups.
687
+ * kbase_csf_firmware_get_glb_iface - Request the global control block of CSF
688
+ *                                      interface capabilities
570689  *
571690  * @kbdev:                 Kbase device.
572691  * @group_data:            Pointer where to store all the group data
....@@ -589,6 +708,8 @@
589708  * @instr_features:        Instrumentation features. Bits 7:4 hold the max size
590709  *                         of events. Bits 3:0 hold the offset update rate.
591710  *                         (csf >= 1,1,0)
711
+ *
712
+ * Return: Total number of CSs, summed across all groups.
592713  */
593714 u32 kbase_csf_firmware_get_glb_iface(
594715 	struct kbase_device *kbdev, struct basep_cs_group_control *group_data,
....@@ -597,20 +718,26 @@
597718 	u32 *group_num, u32 *prfcnt_size, u32 *instr_features);
598719 
599720 /**
600
- * Get CSF firmware header timeline metadata content
601
- *
602
- * Return: The firmware timeline metadata content which match @p name.
721
+ * kbase_csf_firmware_get_timeline_metadata - Get CSF firmware header timeline
722
+ *                                            metadata content
603723  *
604724  * @kbdev:        Kbase device.
605725  * @name:         Name of the metadata which metadata content to be returned.
606726  * @size:         Metadata size if specified metadata found.
727
+ *
728
+ * Return: The firmware timeline metadata content which match @p name.
607729  */
608730 const char *kbase_csf_firmware_get_timeline_metadata(struct kbase_device *kbdev,
609731 	const char *name, size_t *size);
610732 
611733 /**
612
- * kbase_csf_firmware_mcu_shared_mapping_init -
613
- * Allocate and map MCU shared memory.
734
+ * kbase_csf_firmware_mcu_shared_mapping_init - Allocate and map MCU shared memory.
735
+ *
736
+ * @kbdev:              Kbase device the memory mapping shall belong to.
737
+ * @num_pages:          Number of memory pages to map.
738
+ * @cpu_map_properties: Either PROT_READ or PROT_WRITE.
739
+ * @gpu_map_properties: Either KBASE_REG_GPU_RD or KBASE_REG_GPU_WR.
740
+ * @csf_mapping:        Object where to write metadata for the memory mapping.
614741  *
615742  * This helper function allocates memory and maps it on both the CPU
616743  * and the GPU address spaces. Most of the properties of the mapping
....@@ -622,12 +749,6 @@
622749  * will be ignored by the function.
623750  *
624751  * Return: 0 if success, or an error code on failure.
625
- *
626
- * @kbdev:              Kbase device the memory mapping shall belong to.
627
- * @num_pages:          Number of memory pages to map.
628
- * @cpu_map_properties: Either PROT_READ or PROT_WRITE.
629
- * @gpu_map_properties: Either KBASE_REG_GPU_RD or KBASE_REG_GPU_WR.
630
- * @csf_mapping:        Object where to write metadata for the memory mapping.
631752  */
632753 int kbase_csf_firmware_mcu_shared_mapping_init(
633754 		struct kbase_device *kbdev,
....@@ -645,36 +766,7 @@
645766 void kbase_csf_firmware_mcu_shared_mapping_term(
646767 		struct kbase_device *kbdev, struct kbase_csf_mapping *csf_mapping);
647768 
648
-#ifndef MALI_KBASE_BUILD
649
-/**
650
- * mali_kutf_process_fw_utf_entry() - Process the "Firmware UTF tests" section
651
- *
652
- * Read "Firmware UTF tests" section from the firmware image and create
653
- * necessary kutf app+suite+tests.
654
- *
655
- * Return: 0 if successful, negative error code on failure. In both cases
656
- * caller will have to invoke mali_kutf_fw_utf_entry_cleanup for the cleanup
657
- *
658
- * @kbdev: Kbase device structure
659
- * @fw_data: Pointer to the start of firmware binary image loaded from disk
660
- * @fw_size: Size (in bytes) of the firmware image
661
- * @entry: Pointer to the start of the section
662
- */
663
-int mali_kutf_process_fw_utf_entry(struct kbase_device *kbdev,
664
-	const void *fw_data, size_t fw_size, const u32 *entry);
665
-
666
-/**
667
- * mali_kutf_fw_utf_entry_cleanup() - Remove the Fw UTF tests debugfs entries
668
- *
669
- * Destroy the kutf apps+suites+tests created on parsing "Firmware UTF tests"
670
- * section from the firmware image.
671
- *
672
- * @kbdev: Kbase device structure
673
- */
674
-void mali_kutf_fw_utf_entry_cleanup(struct kbase_device *kbdev);
675
-#endif
676
-
677
-#ifdef CONFIG_MALI_BIFROST_DEBUG
769
+#ifdef CONFIG_MALI_BIFROST_DEBUG 
678770 extern bool fw_debug;
679771 #endif
680772 
....@@ -691,11 +783,11 @@
691783  * kbase_csf_firmware_enable_gpu_idle_timer() - Activate the idle hysteresis
692784  *                                              monitoring operation
693785  *
786
+ * @kbdev: Kbase device structure
787
+ *
694788  * Program the firmware interface with its configured hysteresis count value
695789  * and enable the firmware to act on it. The Caller is
696790  * assumed to hold the kbdev->csf.scheduler.interrupt_lock.
697
- *
698
- * @kbdev: Kbase device structure
699791  */
700792 void kbase_csf_firmware_enable_gpu_idle_timer(struct kbase_device *kbdev);
701793 
....@@ -703,10 +795,10 @@
703795  * kbase_csf_firmware_disable_gpu_idle_timer() - Disable the idle time
704796  *                                             hysteresis monitoring operation
705797  *
798
+ * @kbdev: Kbase device structure
799
+ *
706800  * Program the firmware interface to disable the idle hysteresis timer. The
707801  * Caller is assumed to hold the kbdev->csf.scheduler.interrupt_lock.
708
- *
709
- * @kbdev: Kbase device structure
710802  */
711803 void kbase_csf_firmware_disable_gpu_idle_timer(struct kbase_device *kbdev);
712804 
....@@ -741,18 +833,18 @@
741833 u32 kbase_csf_firmware_set_gpu_idle_hysteresis_time(struct kbase_device *kbdev, u32 dur);
742834 
743835 /**
744
- * kbase_csf_firmware_get_mcu_core_pwroff_time - Get the MCU core power-off
836
+ * kbase_csf_firmware_get_mcu_core_pwroff_time - Get the MCU shader Core power-off
745837  *                                               time value
746838  *
747839  * @kbdev:   Instance of a GPU platform device that implements a CSF interface.
748840  *
749
- * Return: the internally recorded MCU core power-off (nominal) value. The unit
841
+ * Return: the internally recorded MCU shader Core power-off (nominal) timeout value. The unit
750842  *         of the value is in micro-seconds.
751843  */
752844 u32 kbase_csf_firmware_get_mcu_core_pwroff_time(struct kbase_device *kbdev);
753845 
754846 /**
755
- * kbase_csf_firmware_set_mcu_core_pwroff_time - Set the MCU core power-off
847
+ * kbase_csf_firmware_set_mcu_core_pwroff_time - Set the MCU shader Core power-off
756848  *                                               time value
757849  *
758850  * @kbdev:   Instance of a GPU platform device that implements a CSF interface.
....@@ -769,7 +861,7 @@
769861  * returned value is the source configuration flag, and it is set to '1'
770862  * when CYCLE_COUNTER alternative source is used.
771863  *
772
- * The configured MCU core power-off timer will only have effect when the host
864
+ * The configured MCU shader Core power-off timer will only have effect when the host
773865  * driver has delegated the shader cores' power management to MCU.
774866  *
775867  * Return: the actual internal core power-off timer value in register defined
....@@ -780,7 +872,7 @@
780872 /**
781873  * kbase_csf_interface_version - Helper function to build the full firmware
782874  *                               interface version in a format compatible with
783
- *                               with GLB_VERSION register
875
+ *                               GLB_VERSION register
784876  *
785877  * @major:     major version of csf interface
786878  * @minor:     minor version of csf interface
....@@ -808,4 +900,17 @@
808900  * Return: 0 if success, or negative error code on failure.
809901  */
810902 int kbase_csf_trigger_firmware_config_update(struct kbase_device *kbdev);
903
+
904
+/**
905
+ * kbase_csf_firmware_req_core_dump - Request a firmware core dump
906
+ *
907
+ * @kbdev: Instance of a GPU platform device that implements a CSF interface.
908
+ *
909
+ * Request a firmware core dump and wait for for firmware to acknowledge.
910
+ * Firmware will enter infinite loop after the firmware core dump is created.
911
+ *
912
+ * Return: 0 if success, or negative error code on failure.
913
+ */
914
+int kbase_csf_firmware_req_core_dump(struct kbase_device *const kbdev);
915
+
811916 #endif