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/*
*
* (C) COPYRIGHT 2014-2017 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 licence.
*
* 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.
*
* SPDX-License-Identifier: GPL-2.0
*
*/
/*
* Register-based HW access backend APIs
*/
#include <mali_kbase.h>
#include <mali_kbase_hwaccess_backend.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>
int kbase_backend_early_init(struct kbase_device *kbdev)
{
int err;
err = kbasep_platform_device_init(kbdev);
if (err)
return err;
err = kbase_pm_runtime_init(kbdev);
if (err)
goto fail_runtime_pm;
/* Ensure we can access the GPU registers */
kbase_pm_register_access_enable(kbdev);
/* Find out GPU properties based on the GPU feature registers */
kbase_gpuprops_set(kbdev);
/* We're done accessing the GPU registers for now. */
kbase_pm_register_access_disable(kbdev);
err = kbase_install_interrupts(kbdev);
if (err)
goto fail_interrupts;
err = kbase_hwaccess_pm_init(kbdev);
if (err)
goto fail_pm;
return 0;
fail_pm:
kbase_release_interrupts(kbdev);
fail_interrupts:
kbase_pm_runtime_term(kbdev);
fail_runtime_pm:
kbasep_platform_device_term(kbdev);
return err;
}
void kbase_backend_early_term(struct kbase_device *kbdev)
{
kbase_hwaccess_pm_term(kbdev);
kbase_release_interrupts(kbdev);
kbase_pm_runtime_term(kbdev);
kbasep_platform_device_term(kbdev);
}
int kbase_backend_late_init(struct kbase_device *kbdev)
{
int err;
err = kbase_hwaccess_pm_powerup(kbdev, PM_HW_ISSUES_DETECT);
if (err)
return err;
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 assigment 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;
init_waitqueue_head(&kbdev->hwaccess.backend.reset_wait);
return 0;
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_hwaccess_pm_halt(kbdev);
return err;
}
void kbase_backend_late_term(struct kbase_device *kbdev)
{
kbase_job_slot_halt(kbdev);
kbase_job_slot_term(kbdev);
kbase_backend_timer_term(kbdev);
kbase_hwaccess_pm_halt(kbdev);
}
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