| // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note |
| /* |
| * |
| * (C) COPYRIGHT 2019-2021 ARM Limited. All rights reserved. |
| * |
| * This program is free software and is provided to you under the terms of the |
| * GNU General Public License version 2 as published by the Free Software |
| * Foundation, and any use by you of this program is subject to the terms |
| * of such GNU license. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, you can access it online at |
| * http://www.gnu.org/licenses/gpl-2.0.html. |
| * |
| */ |
| |
| #include <device/mali_kbase_device_internal.h> |
| #include <device/mali_kbase_device.h> |
| #include <mali_kbase_hwaccess_instr.h> |
| |
| #include <mali_kbase_config_defaults.h> |
| #include <mali_kbase_hwaccess_backend.h> |
| #include <mali_kbase_ctx_sched.h> |
| #include <mali_kbase_reset_gpu.h> |
| |
| |
| #ifdef CONFIG_MALI_ARBITER_SUPPORT |
| #include <arbiter/mali_kbase_arbiter_pm.h> |
| #endif |
| |
| #include <mali_kbase.h> |
| #include <backend/gpu/mali_kbase_irq_internal.h> |
| #include <backend/gpu/mali_kbase_jm_internal.h> |
| #include <backend/gpu/mali_kbase_js_internal.h> |
| #include <backend/gpu/mali_kbase_pm_internal.h> |
| #include <mali_kbase_dummy_job_wa.h> |
| #include <backend/gpu/mali_kbase_clk_rate_trace_mgr.h> |
| |
| /** |
| * kbase_backend_late_init - Perform any backend-specific initialization. |
| * @kbdev: Device pointer |
| * |
| * Return: 0 on success, or an error code on failure. |
| */ |
| static int kbase_backend_late_init(struct kbase_device *kbdev) |
| { |
| int err; |
| |
| err = kbase_hwaccess_pm_init(kbdev); |
| if (err) |
| return err; |
| |
| err = kbase_reset_gpu_init(kbdev); |
| if (err) |
| goto fail_reset_gpu_init; |
| |
| err = kbase_hwaccess_pm_powerup(kbdev, PM_HW_ISSUES_DETECT); |
| if (err) |
| goto fail_pm_powerup; |
| |
| err = kbase_backend_timer_init(kbdev); |
| if (err) |
| goto fail_timer; |
| |
| #ifdef CONFIG_MALI_DEBUG |
| #ifndef CONFIG_MALI_NO_MALI |
| if (kbasep_common_test_interrupt_handlers(kbdev) != 0) { |
| dev_err(kbdev->dev, "Interrupt assignment check failed.\n"); |
| err = -EINVAL; |
| goto fail_interrupt_test; |
| } |
| #endif /* !CONFIG_MALI_NO_MALI */ |
| #endif /* CONFIG_MALI_DEBUG */ |
| |
| err = kbase_job_slot_init(kbdev); |
| if (err) |
| goto fail_job_slot; |
| |
| /* Do the initialisation of devfreq. |
| * Devfreq needs backend_timer_init() for completion of its |
| * initialisation and it also needs to catch the first callback |
| * occurrence of the runtime_suspend event for maintaining state |
| * coherence with the backend power management, hence needs to be |
| * placed before the kbase_pm_context_idle(). |
| */ |
| err = kbase_backend_devfreq_init(kbdev); |
| if (err) |
| goto fail_devfreq_init; |
| |
| /* Update gpuprops with L2_FEATURES if applicable */ |
| err = kbase_gpuprops_update_l2_features(kbdev); |
| if (err) |
| goto fail_update_l2_features; |
| |
| init_waitqueue_head(&kbdev->hwaccess.backend.reset_wait); |
| |
| /* Idle the GPU and/or cores, if the policy wants it to */ |
| kbase_pm_context_idle(kbdev); |
| |
| mutex_init(&kbdev->fw_load_lock); |
| |
| return 0; |
| |
| fail_update_l2_features: |
| kbase_backend_devfreq_term(kbdev); |
| fail_devfreq_init: |
| kbase_job_slot_term(kbdev); |
| fail_job_slot: |
| |
| #ifdef CONFIG_MALI_DEBUG |
| #ifndef CONFIG_MALI_NO_MALI |
| fail_interrupt_test: |
| #endif /* !CONFIG_MALI_NO_MALI */ |
| #endif /* CONFIG_MALI_DEBUG */ |
| |
| kbase_backend_timer_term(kbdev); |
| fail_timer: |
| kbase_pm_context_idle(kbdev); |
| kbase_hwaccess_pm_halt(kbdev); |
| fail_pm_powerup: |
| kbase_reset_gpu_term(kbdev); |
| fail_reset_gpu_init: |
| kbase_hwaccess_pm_term(kbdev); |
| |
| return err; |
| } |
| |
| /** |
| * kbase_backend_late_term - Perform any backend-specific termination. |
| * @kbdev: Device pointer |
| */ |
| static void kbase_backend_late_term(struct kbase_device *kbdev) |
| { |
| kbase_backend_devfreq_term(kbdev); |
| kbase_job_slot_halt(kbdev); |
| kbase_job_slot_term(kbdev); |
| kbase_backend_timer_term(kbdev); |
| kbase_hwaccess_pm_halt(kbdev); |
| kbase_reset_gpu_term(kbdev); |
| kbase_hwaccess_pm_term(kbdev); |
| } |
| |
| static int kbase_device_hwcnt_backend_jm_init(struct kbase_device *kbdev) |
| { |
| return kbase_hwcnt_backend_jm_create(kbdev, &kbdev->hwcnt_gpu_iface); |
| } |
| |
| static void kbase_device_hwcnt_backend_jm_term(struct kbase_device *kbdev) |
| { |
| kbase_hwcnt_backend_jm_destroy(&kbdev->hwcnt_gpu_iface); |
| } |
| |
| static const struct kbase_device_init dev_init[] = { |
| { assign_irqs, NULL, "IRQ search failed" }, |
| { registers_map, registers_unmap, "Register map failed" }, |
| { kbase_device_io_history_init, kbase_device_io_history_term, |
| "Register access history initialization failed" }, |
| { kbase_device_pm_init, kbase_device_pm_term, |
| "Power management initialization failed" }, |
| { kbase_device_early_init, kbase_device_early_term, |
| "Early device initialization failed" }, |
| { kbase_device_populate_max_freq, NULL, |
| "Populating max frequency failed" }, |
| { kbase_device_misc_init, kbase_device_misc_term, |
| "Miscellaneous device initialization failed" }, |
| { kbase_device_pcm_dev_init, kbase_device_pcm_dev_term, |
| "Priority control manager initialization failed" }, |
| { kbase_ctx_sched_init, kbase_ctx_sched_term, |
| "Context scheduler initialization failed" }, |
| { kbase_mem_init, kbase_mem_term, |
| "Memory subsystem initialization failed" }, |
| { kbase_device_coherency_init, NULL, "Device coherency init failed" }, |
| { kbase_protected_mode_init, kbase_protected_mode_term, |
| "Protected mode subsystem initialization failed" }, |
| { kbase_device_list_init, kbase_device_list_term, |
| "Device list setup failed" }, |
| { kbasep_js_devdata_init, kbasep_js_devdata_term, |
| "Job JS devdata initialization failed" }, |
| { kbase_device_timeline_init, kbase_device_timeline_term, |
| "Timeline stream initialization failed" }, |
| { kbase_clk_rate_trace_manager_init, kbase_clk_rate_trace_manager_term, |
| "Clock rate trace manager initialization failed" }, |
| { kbase_instr_backend_init, kbase_instr_backend_term, |
| "Instrumentation backend initialization failed" }, |
| { kbase_device_hwcnt_backend_jm_init, |
| kbase_device_hwcnt_backend_jm_term, |
| "GPU hwcnt backend creation failed" }, |
| { kbase_device_hwcnt_context_init, kbase_device_hwcnt_context_term, |
| "GPU hwcnt context initialization failed" }, |
| { kbase_device_hwcnt_virtualizer_init, |
| kbase_device_hwcnt_virtualizer_term, |
| "GPU hwcnt virtualizer initialization failed" }, |
| { kbase_device_vinstr_init, kbase_device_vinstr_term, |
| "Virtual instrumentation initialization failed" }, |
| { kbase_backend_late_init, kbase_backend_late_term, |
| "Late backend initialization failed" }, |
| #ifdef MALI_KBASE_BUILD |
| { kbase_debug_job_fault_dev_init, kbase_debug_job_fault_dev_term, |
| "Job fault debug initialization failed" }, |
| { kbase_device_debugfs_init, kbase_device_debugfs_term, |
| "DebugFS initialization failed" }, |
| /* Sysfs init needs to happen before registering the device with |
| * misc_register(), otherwise it causes a race condition between |
| * registering the device and a uevent event being generated for |
| * userspace, causing udev rules to run which might expect certain |
| * sysfs attributes present. As a result of the race condition |
| * we avoid, some Mali sysfs entries may have appeared to udev |
| * to not exist. |
| * For more information, see |
| * https://www.kernel.org/doc/Documentation/driver-model/device.txt, the |
| * paragraph that starts with "Word of warning", currently the |
| * second-last paragraph. |
| */ |
| { kbase_sysfs_init, kbase_sysfs_term, "SysFS group creation failed" }, |
| { kbase_device_misc_register, kbase_device_misc_deregister, |
| "Misc device registration failed" }, |
| { kbase_gpuprops_populate_user_buffer, kbase_gpuprops_free_user_buffer, |
| "GPU property population failed" }, |
| #endif |
| { NULL, kbase_dummy_job_wa_cleanup, NULL }, |
| { kbase_device_late_init, kbase_device_late_term, |
| "Late device initialization failed" }, |
| }; |
| |
| static void kbase_device_term_partial(struct kbase_device *kbdev, |
| unsigned int i) |
| { |
| while (i-- > 0) { |
| if (dev_init[i].term) |
| dev_init[i].term(kbdev); |
| } |
| } |
| |
| void kbase_device_term(struct kbase_device *kbdev) |
| { |
| kbase_device_term_partial(kbdev, ARRAY_SIZE(dev_init)); |
| kbasep_js_devdata_halt(kbdev); |
| kbase_mem_halt(kbdev); |
| } |
| |
| int kbase_device_init(struct kbase_device *kbdev) |
| { |
| int err = 0; |
| unsigned int i = 0; |
| |
| dev_info(kbdev->dev, "Kernel DDK version %s", MALI_RELEASE_NAME); |
| |
| kbase_device_id_init(kbdev); |
| kbase_disjoint_init(kbdev); |
| |
| for (i = 0; i < ARRAY_SIZE(dev_init); i++) { |
| if (dev_init[i].init) { |
| err = dev_init[i].init(kbdev); |
| if (err) { |
| if (err != -EPROBE_DEFER) |
| dev_err(kbdev->dev, "%s error = %d\n", |
| dev_init[i].err_mes, err); |
| kbase_device_term_partial(kbdev, i); |
| break; |
| } |
| } |
| } |
| |
| return err; |
| } |
| |
| int kbase_device_firmware_init_once(struct kbase_device *kbdev) |
| { |
| int ret = 0; |
| |
| mutex_lock(&kbdev->fw_load_lock); |
| |
| if (!kbdev->dummy_job_wa_loaded) { |
| ret = kbase_dummy_job_wa_load(kbdev); |
| if (!ret) |
| kbdev->dummy_job_wa_loaded = true; |
| } |
| |
| mutex_unlock(&kbdev->fw_load_lock); |
| |
| return ret; |
| } |
