// SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
|
/*
|
*
|
* (C) COPYRIGHT 2019-2023 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>
|
#include <hwcnt/mali_kbase_hwcnt_watchdog_if_timer.h>
|
#include <hwcnt/backend/mali_kbase_hwcnt_backend_jm.h>
|
#include <hwcnt/backend/mali_kbase_hwcnt_backend_jm_watchdog.h>
|
#include <backend/gpu/mali_kbase_model_linux.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_BIFROST_DEBUG
|
#if IS_ENABLED(CONFIG_MALI_REAL_HW)
|
if (kbasep_common_test_interrupt_handlers(kbdev) != 0) {
|
dev_err(kbdev->dev, "Interrupt assignment check failed.\n");
|
err = -EINVAL;
|
goto fail_interrupt_test;
|
}
|
#endif /* IS_ENABLED(CONFIG_MALI_REAL_HW) */
|
#endif /* CONFIG_MALI_BIFROST_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;
|
|
err = kbase_backend_time_init(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_BIFROST_DEBUG
|
#if IS_ENABLED(CONFIG_MALI_REAL_HW)
|
fail_interrupt_test:
|
#endif /* IS_ENABLED(CONFIG_MALI_REAL_HW) */
|
#endif /* CONFIG_MALI_BIFROST_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);
|
}
|
|
/**
|
* kbase_device_hwcnt_watchdog_if_init - Create hardware counter watchdog
|
* interface.
|
* @kbdev: Device pointer
|
* Return: 0 on success, or an error code on failure.
|
*/
|
static int kbase_device_hwcnt_watchdog_if_init(struct kbase_device *kbdev)
|
{
|
return kbase_hwcnt_watchdog_if_timer_create(&kbdev->hwcnt_watchdog_timer);
|
}
|
|
/**
|
* kbase_device_hwcnt_watchdog_if_term - Terminate hardware counter watchdog
|
* interface.
|
* @kbdev: Device pointer
|
*/
|
static void kbase_device_hwcnt_watchdog_if_term(struct kbase_device *kbdev)
|
{
|
kbase_hwcnt_watchdog_if_timer_destroy(&kbdev->hwcnt_watchdog_timer);
|
}
|
|
/**
|
* kbase_device_hwcnt_backend_jm_init - Create hardware counter backend.
|
* @kbdev: Device pointer
|
* Return: 0 on success, or an error code on failure.
|
*/
|
static int kbase_device_hwcnt_backend_jm_init(struct kbase_device *kbdev)
|
{
|
return kbase_hwcnt_backend_jm_create(kbdev, &kbdev->hwcnt_gpu_jm_backend);
|
}
|
|
/**
|
* kbase_device_hwcnt_backend_jm_term - Terminate hardware counter backend.
|
* @kbdev: Device pointer
|
*/
|
static void kbase_device_hwcnt_backend_jm_term(struct kbase_device *kbdev)
|
{
|
kbase_hwcnt_backend_jm_destroy(&kbdev->hwcnt_gpu_jm_backend);
|
}
|
|
/**
|
* kbase_device_hwcnt_backend_jm_watchdog_init - Create hardware counter watchdog backend.
|
* @kbdev: Device pointer
|
* Return: 0 on success, or an error code on failure.
|
*/
|
static int kbase_device_hwcnt_backend_jm_watchdog_init(struct kbase_device *kbdev)
|
{
|
return kbase_hwcnt_backend_jm_watchdog_create(&kbdev->hwcnt_gpu_jm_backend,
|
&kbdev->hwcnt_watchdog_timer,
|
&kbdev->hwcnt_gpu_iface);
|
}
|
|
/**
|
* kbase_device_hwcnt_backend_jm_watchdog_term - Terminate hardware counter watchdog backend.
|
* @kbdev: Device pointer
|
*/
|
static void kbase_device_hwcnt_backend_jm_watchdog_term(struct kbase_device *kbdev)
|
{
|
kbase_hwcnt_backend_jm_watchdog_destroy(&kbdev->hwcnt_gpu_iface);
|
}
|
|
static const struct kbase_device_init dev_init[] = {
|
#if !IS_ENABLED(CONFIG_MALI_REAL_HW)
|
{ kbase_gpu_device_create, kbase_gpu_device_destroy, "Dummy model initialization failed" },
|
#else /* !IS_ENABLED(CONFIG_MALI_REAL_HW) */
|
{ assign_irqs, NULL, "IRQ search failed" },
|
#endif /* !IS_ENABLED(CONFIG_MALI_REAL_HW) */
|
#if !IS_ENABLED(CONFIG_MALI_BIFROST_NO_MALI)
|
{ registers_map, registers_unmap, "Register map failed" },
|
#endif /* !IS_ENABLED(CONFIG_MALI_BIFROST_NO_MALI) */
|
{ 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_pm_lowest_gpu_freq_init, NULL, "Lowest freq initialization 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_watchdog_if_init, kbase_device_hwcnt_watchdog_if_term,
|
"GPU hwcnt backend watchdog interface creation failed" },
|
{ kbase_device_hwcnt_backend_jm_init, kbase_device_hwcnt_backend_jm_term,
|
"GPU hwcnt backend creation failed" },
|
{ kbase_device_hwcnt_backend_jm_watchdog_init, kbase_device_hwcnt_backend_jm_watchdog_term,
|
"GPU hwcnt watchdog 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_device_kinstr_prfcnt_init, kbase_device_kinstr_prfcnt_term,
|
"Performance counter instrumentation initialization failed" },
|
{ kbase_backend_late_init, kbase_backend_late_term, "Late backend initialization failed" },
|
{ 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" },
|
{ 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;
|
}
|
