2 * Copyright (C) 2010-2014 ARM Limited. All rights reserved.
4 * This program is free software and is provided to you under the terms of the GNU General Public License version 2
5 * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
7 * A copy of the licence is included with the program, and can also be obtained from Free Software
8 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
13 * @file mali_kernel_linux.c
14 * Implementation of the Linux device driver entrypoints
16 #include "../platform/rk30/custom_log.h"
17 #include "../platform/rk30/rk_ext.h"
19 #include <linux/module.h> /* kernel module definitions */
20 #include <linux/fs.h> /* file system operations */
21 #include <linux/cdev.h> /* character device definitions */
22 #include <linux/mm.h> /* memory manager definitions */
23 #include <linux/mali/mali_utgard_ioctl.h>
24 #include <linux/version.h>
25 #include <linux/device.h>
26 #include "mali_kernel_license.h"
27 #include <linux/platform_device.h>
28 #include <linux/miscdevice.h>
29 #include <linux/bug.h>
32 #include <linux/mali/mali_utgard.h>
33 #include "mali_kernel_common.h"
34 #include "mali_session.h"
35 #include "mali_kernel_core.h"
37 #include "mali_kernel_linux.h"
39 #include "mali_ukk_wrappers.h"
40 #include "mali_kernel_sysfs.h"
42 #include "mali_kernel_license.h"
43 #include "mali_memory.h"
44 #include "mali_memory_dma_buf.h"
45 #if defined(CONFIG_MALI400_INTERNAL_PROFILING)
46 #include "mali_profiling_internal.h"
48 #if defined(CONFIG_MALI400_PROFILING) && defined(CONFIG_MALI_DVFS)
49 #include "mali_osk_profiling.h"
50 #include "mali_dvfs_policy.h"
51 static int is_first_resume = 1;
52 /*Store the clk and vol for boot/insmod and mali_resume*/
53 static struct mali_gpu_clk_item mali_gpu_clk[2];
56 /* Streamline support for the Mali driver */
57 #if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_MALI400_PROFILING)
58 /* Ask Linux to create the tracepoints */
59 #define CREATE_TRACE_POINTS
60 #include "mali_linux_trace.h"
62 EXPORT_TRACEPOINT_SYMBOL_GPL(mali_timeline_event);
63 EXPORT_TRACEPOINT_SYMBOL_GPL(mali_hw_counter);
64 EXPORT_TRACEPOINT_SYMBOL_GPL(mali_sw_counters);
65 #endif /* CONFIG_TRACEPOINTS */
67 /* from the __malidrv_build_info.c file that is generated during build */
68 extern const char *__malidrv_build_info(void);
70 /* Module parameter to control log level */
71 int mali_debug_level = 2;
72 module_param(mali_debug_level, int, S_IRUSR | S_IWUSR | S_IWGRP | S_IRGRP | S_IROTH); /* rw-rw-r-- */
73 MODULE_PARM_DESC(mali_debug_level, "Higher number, more dmesg output");
75 extern int mali_max_job_runtime;
76 module_param(mali_max_job_runtime, int, S_IRUSR | S_IWUSR | S_IWGRP | S_IRGRP | S_IROTH);
77 MODULE_PARM_DESC(mali_max_job_runtime, "Maximum allowed job runtime in msecs.\nJobs will be killed after this no matter what");
79 extern int mali_l2_max_reads;
80 module_param(mali_l2_max_reads, int, S_IRUSR | S_IRGRP | S_IROTH);
81 MODULE_PARM_DESC(mali_l2_max_reads, "Maximum reads for Mali L2 cache");
83 extern unsigned int mali_dedicated_mem_start;
84 module_param(mali_dedicated_mem_start, uint, S_IRUSR | S_IRGRP | S_IROTH);
85 MODULE_PARM_DESC(mali_dedicated_mem_start, "Physical start address of dedicated Mali GPU memory.");
87 extern unsigned int mali_dedicated_mem_size;
88 module_param(mali_dedicated_mem_size, uint, S_IRUSR | S_IRGRP | S_IROTH);
89 MODULE_PARM_DESC(mali_dedicated_mem_size, "Size of dedicated Mali GPU memory.");
91 extern unsigned int mali_shared_mem_size;
92 module_param(mali_shared_mem_size, uint, S_IRUSR | S_IRGRP | S_IROTH);
93 MODULE_PARM_DESC(mali_shared_mem_size, "Size of shared Mali GPU memory.");
95 #if defined(CONFIG_MALI400_PROFILING)
96 extern int mali_boot_profiling;
97 module_param(mali_boot_profiling, int, S_IRUSR | S_IRGRP | S_IROTH);
98 MODULE_PARM_DESC(mali_boot_profiling, "Start profiling as a part of Mali driver initialization");
101 extern int mali_max_pp_cores_group_1;
102 module_param(mali_max_pp_cores_group_1, int, S_IRUSR | S_IRGRP | S_IROTH);
103 MODULE_PARM_DESC(mali_max_pp_cores_group_1, "Limit the number of PP cores to use from first PP group.");
105 extern int mali_max_pp_cores_group_2;
106 module_param(mali_max_pp_cores_group_2, int, S_IRUSR | S_IRGRP | S_IROTH);
107 MODULE_PARM_DESC(mali_max_pp_cores_group_2, "Limit the number of PP cores to use from second PP group (Mali-450 only).");
109 #if defined(CONFIG_MALI_DVFS)
110 /** the max fps the same as display vsync default 60, can set by module insert parameter */
111 extern int mali_max_system_fps;
112 module_param(mali_max_system_fps, int, S_IRUSR | S_IWUSR | S_IWGRP | S_IRGRP | S_IROTH);
113 MODULE_PARM_DESC(mali_max_system_fps, "Max system fps the same as display VSYNC.");
115 /** a lower limit on their desired FPS default 58, can set by module insert parameter*/
116 extern int mali_desired_fps;
117 module_param(mali_desired_fps, int, S_IRUSR | S_IWUSR | S_IWGRP | S_IRGRP | S_IROTH);
118 MODULE_PARM_DESC(mali_desired_fps, "A bit lower than max_system_fps which user desired fps");
121 #if MALI_ENABLE_CPU_CYCLES
122 #include <linux/cpumask.h>
123 #include <linux/timer.h>
125 static struct timer_list mali_init_cpu_clock_timers[8];
126 static u32 mali_cpu_clock_last_value[8] = {0,};
129 /* Export symbols from common code: mali_user_settings.c */
130 #include "mali_user_settings_db.h"
131 EXPORT_SYMBOL(mali_set_user_setting);
132 EXPORT_SYMBOL(mali_get_user_setting);
134 static char mali_dev_name[] = "mali"; /* should be const, but the functions we call requires non-cost */
136 /* This driver only supports one Mali device, and this variable stores this single platform device */
137 struct platform_device *mali_platform_device = NULL;
139 /* This driver only supports one Mali device, and this variable stores the exposed misc device (/dev/mali) */
140 static struct miscdevice mali_miscdevice = { 0, };
142 static int mali_miscdevice_register(struct platform_device *pdev);
143 static void mali_miscdevice_unregister(void);
145 static int mali_open(struct inode *inode, struct file *filp);
146 static int mali_release(struct inode *inode, struct file *filp);
147 #ifdef HAVE_UNLOCKED_IOCTL
148 static long mali_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
150 static int mali_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg);
153 static int mali_probe(struct platform_device *pdev);
154 static int mali_remove(struct platform_device *pdev);
156 static int mali_driver_suspend_scheduler(struct device *dev);
157 static int mali_driver_resume_scheduler(struct device *dev);
159 #ifdef CONFIG_PM_RUNTIME
160 static int mali_driver_runtime_suspend(struct device *dev);
161 static int mali_driver_runtime_resume(struct device *dev);
162 static int mali_driver_runtime_idle(struct device *dev);
165 #if defined(MALI_FAKE_PLATFORM_DEVICE)
166 #if defined(CONFIG_MALI_DT)
167 extern int mali_platform_device_init(struct platform_device *device);
168 extern int mali_platform_device_deinit(struct platform_device *device);
170 extern int mali_platform_device_register(void);
171 extern int mali_platform_device_unregister(void);
175 /* Linux power management operations provided by the Mali device driver */
176 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29))
177 struct pm_ext_ops mali_dev_ext_pm_ops = {
180 .suspend = mali_driver_suspend_scheduler,
181 .resume = mali_driver_resume_scheduler,
182 .freeze = mali_driver_suspend_scheduler,
183 .thaw = mali_driver_resume_scheduler,
187 static const struct dev_pm_ops mali_dev_pm_ops = {
188 #ifdef CONFIG_PM_RUNTIME
189 .runtime_suspend = mali_driver_runtime_suspend,
190 .runtime_resume = mali_driver_runtime_resume,
191 .runtime_idle = mali_driver_runtime_idle,
193 .suspend = mali_driver_suspend_scheduler,
194 .resume = mali_driver_resume_scheduler,
195 .freeze = mali_driver_suspend_scheduler,
196 .thaw = mali_driver_resume_scheduler,
197 .poweroff = mali_driver_suspend_scheduler,
201 #ifdef CONFIG_MALI_DT
202 static struct of_device_id base_dt_ids[] = {
203 {.compatible = "arm,mali-300"},
204 /*-------------------------------------------------------*/
205 /* rk_ext : to use dts_for_mali_ko_befor_r5p0-01rel0. */
206 // {.compatible = "arm,mali-400"},
207 {.compatible = "arm,mali400"},
208 /*-------------------------------------------------------*/
209 {.compatible = "arm,mali-450"},
210 {.compatible = "arm,mali-utgard"},
214 MODULE_DEVICE_TABLE(of, base_dt_ids);
217 /* The Mali device driver struct */
218 static struct platform_driver mali_platform_driver = {
220 .remove = mali_remove,
221 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29))
222 .pm = &mali_dev_ext_pm_ops,
226 .name = MALI_GPU_NAME_UTGARD,
227 .owner = THIS_MODULE,
228 .bus = &platform_bus_type,
229 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 29))
230 .pm = &mali_dev_pm_ops,
232 #ifdef CONFIG_MALI_DT
233 .of_match_table = of_match_ptr(base_dt_ids),
238 /* Linux misc device operations (/dev/mali) */
239 struct file_operations mali_fops = {
240 .owner = THIS_MODULE,
242 .release = mali_release,
243 #ifdef HAVE_UNLOCKED_IOCTL
244 .unlocked_ioctl = mali_ioctl,
248 .compat_ioctl = mali_ioctl,
252 #if MALI_ENABLE_CPU_CYCLES
253 void mali_init_cpu_time_counters(int reset, int enable_divide_by_64)
255 /* The CPU assembly reference used is: ARM Architecture Reference Manual ARMv7-AR C.b */
258 /* See B4.1.116 PMCNTENSET, Performance Monitors Count Enable Set register, VMSA */
259 /* setting p15 c9 c12 1 to 0x8000000f==CPU_CYCLE_ENABLE |EVENT_3_ENABLE|EVENT_2_ENABLE|EVENT_1_ENABLE|EVENT_0_ENABLE */
260 asm volatile("mcr p15, 0, %0, c9, c12, 1" :: "r"(0x8000000f));
263 /* See B4.1.117 PMCR, Performance Monitors Control Register. Writing to p15, c9, c12, 0 */
264 write_value = 1 << 0; /* Bit 0 set. Enable counters */
266 write_value |= 1 << 1; /* Reset event counters */
267 write_value |= 1 << 2; /* Reset cycle counter */
269 if (enable_divide_by_64) {
270 write_value |= 1 << 3; /* Enable the Clock divider by 64 */
272 write_value |= 1 << 4; /* Export enable. Not needed */
273 asm volatile("MCR p15, 0, %0, c9, c12, 0\t\n" :: "r"(write_value));
275 /* PMOVSR Overflow Flag Status Register - Clear Clock and Event overflows */
276 asm volatile("MCR p15, 0, %0, c9, c12, 3\t\n" :: "r"(0x8000000f));
279 /* See B4.1.124 PMUSERENR - setting p15 c9 c14 to 1" */
280 /* User mode access to the Performance Monitors enabled. */
281 /* Lets User space read cpu clock cycles */
282 asm volatile("mcr p15, 0, %0, c9, c14, 0" :: "r"(1));
285 /** A timer function that configures the cycle clock counter on current CPU.
286 * The function \a mali_init_cpu_time_counters_on_all_cpus sets up this
287 * function to trigger on all Cpus during module load.
289 static void mali_init_cpu_clock_timer_func(unsigned long data)
291 int reset_counters, enable_divide_clock_counter_by_64;
292 int current_cpu = raw_smp_processor_id();
293 unsigned int sample0;
294 unsigned int sample1;
299 enable_divide_clock_counter_by_64 = 0;
300 mali_init_cpu_time_counters(reset_counters, enable_divide_clock_counter_by_64);
302 sample0 = mali_get_cpu_cyclecount();
303 sample1 = mali_get_cpu_cyclecount();
305 MALI_DEBUG_PRINT(3, ("Init Cpu %d cycle counter- First two samples: %08x %08x \n", current_cpu, sample0, sample1));
308 /** A timer functions for storing current time on all cpus.
309 * Used for checking if the clocks have similar values or if they are drifting.
311 static void mali_print_cpu_clock_timer_func(unsigned long data)
313 int current_cpu = raw_smp_processor_id();
314 unsigned int sample0;
317 sample0 = mali_get_cpu_cyclecount();
318 if (current_cpu < 8) {
319 mali_cpu_clock_last_value[current_cpu] = sample0;
323 /** Init the performance registers on all CPUs to count clock cycles.
324 * For init \a print_only should be 0.
325 * If \a print_only is 1, it will intead print the current clock value of all CPUs.
327 void mali_init_cpu_time_counters_on_all_cpus(int print_only)
335 jiffies_trigger = jiffies + jiffies_wait;
337 for (i = 0 ; i < 8 ; i++) {
338 init_timer(&mali_init_cpu_clock_timers[i]);
339 if (print_only) mali_init_cpu_clock_timers[i].function = mali_print_cpu_clock_timer_func;
340 else mali_init_cpu_clock_timers[i].function = mali_init_cpu_clock_timer_func;
341 mali_init_cpu_clock_timers[i].expires = jiffies_trigger ;
343 cpu_number = cpumask_first(cpu_online_mask);
344 for (i = 0 ; i < 8 ; i++) {
346 add_timer_on(&mali_init_cpu_clock_timers[i], cpu_number);
347 next_cpu = cpumask_next(cpu_number, cpu_online_mask);
348 if (next_cpu >= nr_cpu_ids) break;
349 cpu_number = next_cpu;
352 while (jiffies_wait) jiffies_wait = schedule_timeout_uninterruptible(jiffies_wait);
354 for (i = 0 ; i < 8 ; i++) {
355 del_timer_sync(&mali_init_cpu_clock_timers[i]);
359 if ((0 == mali_cpu_clock_last_value[2]) && (0 == mali_cpu_clock_last_value[3])) {
360 /* Diff can be printed if we want to check if the clocks are in sync
361 int diff = mali_cpu_clock_last_value[0] - mali_cpu_clock_last_value[1];*/
362 MALI_DEBUG_PRINT(2, ("CPU cycle counters readout all: %08x %08x\n", mali_cpu_clock_last_value[0], mali_cpu_clock_last_value[1]));
364 MALI_DEBUG_PRINT(2, ("CPU cycle counters readout all: %08x %08x %08x %08x\n", mali_cpu_clock_last_value[0], mali_cpu_clock_last_value[1], mali_cpu_clock_last_value[2], mali_cpu_clock_last_value[3]));
370 int mali_module_init(void)
374 MALI_DEBUG_PRINT(2, ("Inserting Mali v%d device driver. \n", _MALI_API_VERSION));
375 MALI_DEBUG_PRINT(2, ("Compiled: %s, time: %s.\n", __DATE__, __TIME__));
376 MALI_DEBUG_PRINT(2, ("Driver revision: %s\n", SVN_REV_STRING));
378 I("svn_rev_string_from_arm of this mali_ko is '%s', rk_ko_ver is '%d', built at '%s', on '%s'.",
384 #if MALI_ENABLE_CPU_CYCLES
385 mali_init_cpu_time_counters_on_all_cpus(0);
386 MALI_DEBUG_PRINT(2, ("CPU cycle counter setup complete\n"));
387 /* Printing the current cpu counters */
388 mali_init_cpu_time_counters_on_all_cpus(1);
391 /* Initialize module wide settings */
392 #ifdef MALI_FAKE_PLATFORM_DEVICE
393 #ifndef CONFIG_MALI_DT
394 MALI_DEBUG_PRINT(2, ("mali_module_init() registering device\n"));
395 err = mali_platform_device_register();
402 MALI_DEBUG_PRINT(2, ("mali_module_init() registering driver\n"));
404 err = platform_driver_register(&mali_platform_driver);
407 MALI_DEBUG_PRINT(2, ("mali_module_init() Failed to register driver (%d)\n", err));
408 #ifdef MALI_FAKE_PLATFORM_DEVICE
409 #ifndef CONFIG_MALI_DT
410 mali_platform_device_unregister();
413 mali_platform_device = NULL;
417 #if defined(CONFIG_MALI400_INTERNAL_PROFILING)
418 err = _mali_internal_profiling_init(mali_boot_profiling ? MALI_TRUE : MALI_FALSE);
420 /* No biggie if we wheren't able to initialize the profiling */
421 MALI_PRINT_ERROR(("Failed to initialize profiling, feature will be unavailable\n"));
425 /* Tracing the current frequency and voltage from boot/insmod*/
426 #if defined(CONFIG_MALI400_PROFILING) && defined(CONFIG_MALI_DVFS)
427 /* Just call mali_get_current_gpu_clk_item(),to record current clk info.*/
428 mali_get_current_gpu_clk_item(&mali_gpu_clk[0]);
429 _mali_osk_profiling_add_event(MALI_PROFILING_EVENT_TYPE_SINGLE |
430 MALI_PROFILING_EVENT_CHANNEL_GPU |
431 MALI_PROFILING_EVENT_REASON_SINGLE_GPU_FREQ_VOLT_CHANGE,
432 mali_gpu_clk[0].clock,
433 mali_gpu_clk[0].vol / 1000,
437 MALI_PRINT(("Mali device driver loaded\n"));
439 return 0; /* Success */
442 void mali_module_exit(void)
444 MALI_DEBUG_PRINT(2, ("Unloading Mali v%d device driver.\n", _MALI_API_VERSION));
446 MALI_DEBUG_PRINT(2, ("mali_module_exit() unregistering driver\n"));
448 platform_driver_unregister(&mali_platform_driver);
450 #if defined(MALI_FAKE_PLATFORM_DEVICE)
451 #ifndef CONFIG_MALI_DT
452 MALI_DEBUG_PRINT(2, ("mali_module_exit() unregistering device\n"));
453 mali_platform_device_unregister();
457 /* Tracing the current frequency and voltage from rmmod*/
458 _mali_osk_profiling_add_event(MALI_PROFILING_EVENT_TYPE_SINGLE |
459 MALI_PROFILING_EVENT_CHANNEL_GPU |
460 MALI_PROFILING_EVENT_REASON_SINGLE_GPU_FREQ_VOLT_CHANGE,
465 #if defined(CONFIG_MALI400_INTERNAL_PROFILING)
466 _mali_internal_profiling_term();
469 MALI_PRINT(("Mali device driver unloaded\n"));
472 static int mali_probe(struct platform_device *pdev)
476 MALI_DEBUG_PRINT(2, ("mali_probe(): Called for platform device %s\n", pdev->name));
478 if (NULL != mali_platform_device) {
479 /* Already connected to a device, return error */
480 MALI_PRINT_ERROR(("mali_probe(): The Mali driver is already connected with a Mali device."));
484 mali_platform_device = pdev;
486 dev_info(&pdev->dev, "mali_platform_device->num_resources = %d\n",
487 mali_platform_device->num_resources);
492 for(i = 0; i < mali_platform_device->num_resources; i++)
493 dev_info(&pdev->dev, "mali_platform_device->resource[%d].start = 0x%08x\n",
494 i, mali_platform_device->resource[i].start);
497 #ifdef CONFIG_MALI_DT
498 /* If we use DT to initialize our DDK, we have to prepare somethings. */
499 err = mali_platform_device_init(mali_platform_device);
501 MALI_PRINT_ERROR(("mali_probe(): Failed to initialize platform device."));
506 if (_MALI_OSK_ERR_OK == _mali_osk_wq_init()) {
507 /* Initialize the Mali GPU HW specified by pdev */
508 if (_MALI_OSK_ERR_OK == mali_initialize_subsystems()) {
509 /* Register a misc device (so we are accessible from user space) */
510 err = mali_miscdevice_register(pdev);
512 /* Setup sysfs entries */
513 err = mali_sysfs_register(mali_dev_name);
516 MALI_DEBUG_PRINT(2, ("mali_probe(): Successfully initialized driver for platform device %s\n", pdev->name));
520 MALI_PRINT_ERROR(("mali_probe(): failed to register sysfs entries"));
522 mali_miscdevice_unregister();
524 MALI_PRINT_ERROR(("mali_probe(): failed to register Mali misc device."));
526 mali_terminate_subsystems();
528 MALI_PRINT_ERROR(("mali_probe(): Failed to initialize Mali device driver."));
533 mali_platform_device = NULL;
537 static int mali_remove(struct platform_device *pdev)
539 MALI_DEBUG_PRINT(2, ("mali_remove() called for platform device %s\n", pdev->name));
540 mali_sysfs_unregister();
541 mali_miscdevice_unregister();
542 mali_terminate_subsystems();
544 #ifdef CONFIG_MALI_DT
545 mali_platform_device_deinit(mali_platform_device);
547 mali_platform_device = NULL;
551 static int mali_miscdevice_register(struct platform_device *pdev)
555 mali_miscdevice.minor = MISC_DYNAMIC_MINOR;
556 mali_miscdevice.name = mali_dev_name;
557 mali_miscdevice.fops = &mali_fops;
558 mali_miscdevice.parent = get_device(&pdev->dev);
560 err = misc_register(&mali_miscdevice);
562 MALI_PRINT_ERROR(("Failed to register misc device, misc_register() returned %d\n", err));
568 static void mali_miscdevice_unregister(void)
570 misc_deregister(&mali_miscdevice);
573 static int mali_driver_suspend_scheduler(struct device *dev)
575 mali_pm_os_suspend(MALI_TRUE);
576 /* Tracing the frequency and voltage after mali is suspended */
577 _mali_osk_profiling_add_event(MALI_PROFILING_EVENT_TYPE_SINGLE |
578 MALI_PROFILING_EVENT_CHANNEL_GPU |
579 MALI_PROFILING_EVENT_REASON_SINGLE_GPU_FREQ_VOLT_CHANGE,
586 static int mali_driver_resume_scheduler(struct device *dev)
588 /* Tracing the frequency and voltage after mali is resumed */
589 #if defined(CONFIG_MALI400_PROFILING) && defined(CONFIG_MALI_DVFS)
590 /* Just call mali_get_current_gpu_clk_item() once,to record current clk info.*/
591 if (is_first_resume == 1) {
592 mali_get_current_gpu_clk_item(&mali_gpu_clk[1]);
595 _mali_osk_profiling_add_event(MALI_PROFILING_EVENT_TYPE_SINGLE |
596 MALI_PROFILING_EVENT_CHANNEL_GPU |
597 MALI_PROFILING_EVENT_REASON_SINGLE_GPU_FREQ_VOLT_CHANGE,
598 mali_gpu_clk[1].clock,
599 mali_gpu_clk[1].vol / 1000,
606 #ifdef CONFIG_PM_RUNTIME
607 static int mali_driver_runtime_suspend(struct device *dev)
609 if (MALI_TRUE == mali_pm_runtime_suspend()) {
610 /* Tracing the frequency and voltage after mali is suspended */
611 _mali_osk_profiling_add_event(MALI_PROFILING_EVENT_TYPE_SINGLE |
612 MALI_PROFILING_EVENT_CHANNEL_GPU |
613 MALI_PROFILING_EVENT_REASON_SINGLE_GPU_FREQ_VOLT_CHANGE,
624 static int mali_driver_runtime_resume(struct device *dev)
626 /* Tracing the frequency and voltage after mali is resumed */
627 #if defined(CONFIG_MALI400_PROFILING) && defined(CONFIG_MALI_DVFS)
628 /* Just call mali_get_current_gpu_clk_item() once,to record current clk info.*/
629 if (is_first_resume == 1) {
630 mali_get_current_gpu_clk_item(&mali_gpu_clk[1]);
633 _mali_osk_profiling_add_event(MALI_PROFILING_EVENT_TYPE_SINGLE |
634 MALI_PROFILING_EVENT_CHANNEL_GPU |
635 MALI_PROFILING_EVENT_REASON_SINGLE_GPU_FREQ_VOLT_CHANGE,
636 mali_gpu_clk[1].clock,
637 mali_gpu_clk[1].vol / 1000,
641 mali_pm_runtime_resume();
645 static int mali_driver_runtime_idle(struct device *dev)
652 static int mali_open(struct inode *inode, struct file *filp)
654 struct mali_session_data *session_data;
655 _mali_osk_errcode_t err;
657 /* input validation */
658 if (mali_miscdevice.minor != iminor(inode)) {
659 MALI_PRINT_ERROR(("mali_open() Minor does not match\n"));
663 /* allocated struct to track this session */
664 err = _mali_ukk_open((void **)&session_data);
665 if (_MALI_OSK_ERR_OK != err) return map_errcode(err);
667 /* initialize file pointer */
670 /* link in our session data */
671 filp->private_data = (void *)session_data;
676 static int mali_release(struct inode *inode, struct file *filp)
678 _mali_osk_errcode_t err;
680 /* input validation */
681 if (mali_miscdevice.minor != iminor(inode)) {
682 MALI_PRINT_ERROR(("mali_release() Minor does not match\n"));
686 err = _mali_ukk_close((void **)&filp->private_data);
687 if (_MALI_OSK_ERR_OK != err) return map_errcode(err);
692 int map_errcode(_mali_osk_errcode_t err)
695 case _MALI_OSK_ERR_OK :
697 case _MALI_OSK_ERR_FAULT:
699 case _MALI_OSK_ERR_INVALID_FUNC:
701 case _MALI_OSK_ERR_INVALID_ARGS:
703 case _MALI_OSK_ERR_NOMEM:
705 case _MALI_OSK_ERR_TIMEOUT:
707 case _MALI_OSK_ERR_RESTARTSYSCALL:
709 case _MALI_OSK_ERR_ITEM_NOT_FOUND:
716 #ifdef HAVE_UNLOCKED_IOCTL
717 static long mali_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
719 static int mali_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg)
723 struct mali_session_data *session_data;
725 #ifndef HAVE_UNLOCKED_IOCTL
730 MALI_DEBUG_PRINT(7, ("Ioctl received 0x%08X 0x%08lX\n", cmd, arg));
732 session_data = (struct mali_session_data *)filp->private_data;
733 if (NULL == session_data) {
734 MALI_DEBUG_PRINT(7, ("filp->private_data was NULL\n"));
738 if (NULL == (void *)arg) {
739 MALI_DEBUG_PRINT(7, ("arg was NULL\n"));
744 case MALI_IOC_WAIT_FOR_NOTIFICATION:
745 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_wait_for_notification_s), sizeof(u64)));
746 err = wait_for_notification_wrapper(session_data, (_mali_uk_wait_for_notification_s __user *)arg);
749 case MALI_IOC_GET_API_VERSION_V2:
750 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_get_api_version_v2_s), sizeof(u64)));
751 err = get_api_version_v2_wrapper(session_data, (_mali_uk_get_api_version_v2_s __user *)arg);
754 case MALI_IOC_GET_API_VERSION:
755 err = get_api_version_wrapper(session_data, (_mali_uk_get_api_version_s __user *)arg);
758 case MALI_IOC_POST_NOTIFICATION:
759 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_post_notification_s), sizeof(u64)));
760 err = post_notification_wrapper(session_data, (_mali_uk_post_notification_s __user *)arg);
763 /* rk_ext : 从对 r5p0-01rel0 集成开始, 不再使用. */
765 case MALI_IOC_GET_MALI_VERSION_IN_RK30:
766 err = get_mali_version_in_rk30_wrapper(session_data, (_mali_uk_get_mali_version_in_rk30_s __user *)arg);
769 case MALI_IOC_GET_RK_KO_VERSION:
770 err = get_rk_ko_version_wrapper(session_data, (_mali_rk_ko_version_s __user *)arg);
774 case MALI_IOC_GET_USER_SETTINGS:
775 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_get_user_settings_s), sizeof(u64)));
776 err = get_user_settings_wrapper(session_data, (_mali_uk_get_user_settings_s __user *)arg);
779 case MALI_IOC_REQUEST_HIGH_PRIORITY:
780 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_request_high_priority_s), sizeof(u64)));
781 err = request_high_priority_wrapper(session_data, (_mali_uk_request_high_priority_s __user *)arg);
784 #if defined(CONFIG_MALI400_PROFILING)
785 case MALI_IOC_PROFILING_ADD_EVENT:
786 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_profiling_add_event_s), sizeof(u64)));
787 err = profiling_add_event_wrapper(session_data, (_mali_uk_profiling_add_event_s __user *)arg);
790 case MALI_IOC_PROFILING_REPORT_SW_COUNTERS:
791 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_sw_counters_report_s), sizeof(u64)));
792 err = profiling_report_sw_counters_wrapper(session_data, (_mali_uk_sw_counters_report_s __user *)arg);
796 case MALI_IOC_PROFILING_MEMORY_USAGE_GET:
797 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_profiling_memory_usage_get_s), sizeof(u64)));
798 err = profiling_memory_usage_get_wrapper(session_data, (_mali_uk_profiling_memory_usage_get_s __user *)arg);
803 case MALI_IOC_PROFILING_ADD_EVENT: /* FALL-THROUGH */
804 case MALI_IOC_PROFILING_REPORT_SW_COUNTERS: /* FALL-THROUGH */
805 case MALI_IOC_PROFILING_MEMORY_USAGE_GET: /* FALL-THROUGH */
806 MALI_DEBUG_PRINT(2, ("Profiling not supported\n"));
812 case MALI_IOC_MEM_WRITE_SAFE:
813 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_mem_write_safe_s), sizeof(u64)));
814 err = mem_write_safe_wrapper(session_data, (_mali_uk_mem_write_safe_s __user *)arg);
817 case MALI_IOC_MEM_MAP_EXT:
818 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_map_external_mem_s), sizeof(u64)));
819 err = mem_map_ext_wrapper(session_data, (_mali_uk_map_external_mem_s __user *)arg);
822 case MALI_IOC_MEM_UNMAP_EXT:
823 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_unmap_external_mem_s), sizeof(u64)));
824 err = mem_unmap_ext_wrapper(session_data, (_mali_uk_unmap_external_mem_s __user *)arg);
827 case MALI_IOC_MEM_QUERY_MMU_PAGE_TABLE_DUMP_SIZE:
828 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_query_mmu_page_table_dump_size_s), sizeof(u64)));
829 err = mem_query_mmu_page_table_dump_size_wrapper(session_data, (_mali_uk_query_mmu_page_table_dump_size_s __user *)arg);
832 case MALI_IOC_MEM_DUMP_MMU_PAGE_TABLE:
833 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_dump_mmu_page_table_s), sizeof(u64)));
834 err = mem_dump_mmu_page_table_wrapper(session_data, (_mali_uk_dump_mmu_page_table_s __user *)arg);
837 #if defined(CONFIG_MALI400_UMP)
839 case MALI_IOC_MEM_ATTACH_UMP:
840 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_attach_ump_mem_s), sizeof(u64)));
841 err = mem_attach_ump_wrapper(session_data, (_mali_uk_attach_ump_mem_s __user *)arg);
844 case MALI_IOC_MEM_RELEASE_UMP:
845 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_release_ump_mem_s), sizeof(u64)));
846 err = mem_release_ump_wrapper(session_data, (_mali_uk_release_ump_mem_s __user *)arg);
851 case MALI_IOC_MEM_ATTACH_UMP:
852 case MALI_IOC_MEM_RELEASE_UMP: /* FALL-THROUGH */
853 MALI_DEBUG_PRINT(2, ("UMP not supported\n"));
858 #ifdef CONFIG_DMA_SHARED_BUFFER
859 case MALI_IOC_MEM_ATTACH_DMA_BUF:
860 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_attach_dma_buf_s), sizeof(u64)));
861 err = mali_attach_dma_buf(session_data, (_mali_uk_attach_dma_buf_s __user *)arg);
864 case MALI_IOC_MEM_RELEASE_DMA_BUF:
865 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_release_dma_buf_s), sizeof(u64)));
866 err = mali_release_dma_buf(session_data, (_mali_uk_release_dma_buf_s __user *)arg);
869 case MALI_IOC_MEM_DMA_BUF_GET_SIZE:
870 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_dma_buf_get_size_s), sizeof(u64)));
871 err = mali_dma_buf_get_size(session_data, (_mali_uk_dma_buf_get_size_s __user *)arg);
875 case MALI_IOC_MEM_ATTACH_DMA_BUF: /* FALL-THROUGH */
876 case MALI_IOC_MEM_RELEASE_DMA_BUF: /* FALL-THROUGH */
877 case MALI_IOC_MEM_DMA_BUF_GET_SIZE: /* FALL-THROUGH */
878 MALI_DEBUG_PRINT(2, ("DMA-BUF not supported\n"));
883 case MALI_IOC_PP_START_JOB:
884 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_pp_start_job_s), sizeof(u64)));
885 err = pp_start_job_wrapper(session_data, (_mali_uk_pp_start_job_s __user *)arg);
888 case MALI_IOC_PP_AND_GP_START_JOB:
889 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_pp_and_gp_start_job_s), sizeof(u64)));
890 err = pp_and_gp_start_job_wrapper(session_data, (_mali_uk_pp_and_gp_start_job_s __user *)arg);
893 case MALI_IOC_PP_NUMBER_OF_CORES_GET:
894 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_get_pp_number_of_cores_s), sizeof(u64)));
895 err = pp_get_number_of_cores_wrapper(session_data, (_mali_uk_get_pp_number_of_cores_s __user *)arg);
898 case MALI_IOC_PP_CORE_VERSION_GET:
899 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_get_pp_core_version_s), sizeof(u64)));
900 err = pp_get_core_version_wrapper(session_data, (_mali_uk_get_pp_core_version_s __user *)arg);
903 case MALI_IOC_PP_DISABLE_WB:
904 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_pp_disable_wb_s), sizeof(u64)));
905 err = pp_disable_wb_wrapper(session_data, (_mali_uk_pp_disable_wb_s __user *)arg);
908 case MALI_IOC_GP2_START_JOB:
909 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_gp_start_job_s), sizeof(u64)));
910 err = gp_start_job_wrapper(session_data, (_mali_uk_gp_start_job_s __user *)arg);
913 case MALI_IOC_GP2_NUMBER_OF_CORES_GET:
914 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_get_gp_number_of_cores_s), sizeof(u64)));
915 err = gp_get_number_of_cores_wrapper(session_data, (_mali_uk_get_gp_number_of_cores_s __user *)arg);
918 case MALI_IOC_GP2_CORE_VERSION_GET:
919 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_get_gp_core_version_s), sizeof(u64)));
920 err = gp_get_core_version_wrapper(session_data, (_mali_uk_get_gp_core_version_s __user *)arg);
923 case MALI_IOC_GP2_SUSPEND_RESPONSE:
924 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_gp_suspend_response_s), sizeof(u64)));
925 err = gp_suspend_response_wrapper(session_data, (_mali_uk_gp_suspend_response_s __user *)arg);
928 case MALI_IOC_VSYNC_EVENT_REPORT:
929 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_vsync_event_report_s), sizeof(u64)));
930 err = vsync_event_report_wrapper(session_data, (_mali_uk_vsync_event_report_s __user *)arg);
933 case MALI_IOC_TIMELINE_GET_LATEST_POINT:
934 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_timeline_get_latest_point_s), sizeof(u64)));
935 err = timeline_get_latest_point_wrapper(session_data, (_mali_uk_timeline_get_latest_point_s __user *)arg);
937 case MALI_IOC_TIMELINE_WAIT:
938 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_timeline_wait_s), sizeof(u64)));
939 err = timeline_wait_wrapper(session_data, (_mali_uk_timeline_wait_s __user *)arg);
941 case MALI_IOC_TIMELINE_CREATE_SYNC_FENCE:
942 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_timeline_create_sync_fence_s), sizeof(u64)));
943 err = timeline_create_sync_fence_wrapper(session_data, (_mali_uk_timeline_create_sync_fence_s __user *)arg);
945 case MALI_IOC_SOFT_JOB_START:
946 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_soft_job_start_s), sizeof(u64)));
947 err = soft_job_start_wrapper(session_data, (_mali_uk_soft_job_start_s __user *)arg);
949 case MALI_IOC_SOFT_JOB_SIGNAL:
950 BUILD_BUG_ON(!IS_ALIGNED(sizeof(_mali_uk_soft_job_signal_s), sizeof(u64)));
951 err = soft_job_signal_wrapper(session_data, (_mali_uk_soft_job_signal_s __user *)arg);
955 MALI_DEBUG_PRINT(2, ("No handler for ioctl 0x%08X 0x%08lX\n", cmd, arg));
963 module_init(mali_module_init);
964 module_exit(mali_module_exit);
966 MODULE_LICENSE(MALI_KERNEL_LINUX_LICENSE);
967 MODULE_AUTHOR("ARM Ltd.");
968 MODULE_VERSION(SVN_REV_STRING);