/*
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*
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* (C) COPYRIGHT 2014-2016 ARM Limited. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the
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* GNU General Public License version 2 as published by the Free Software
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* Foundation, and any use by you of this program is subject to the terms
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* of such GNU licence.
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*
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* A copy of the licence is included with the program, and can also be obtained
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* from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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/*
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* Register-based HW access backend APIs
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*/
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#include <mali_kbase.h>
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#include <mali_kbase_hwaccess_backend.h>
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#include <backend/gpu/mali_kbase_irq_internal.h>
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#include <backend/gpu/mali_kbase_jm_internal.h>
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#include <backend/gpu/mali_kbase_js_internal.h>
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#include <backend/gpu/mali_kbase_pm_internal.h>
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int kbase_backend_early_init(struct kbase_device *kbdev)
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{
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int err;
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err = kbasep_platform_device_init(kbdev);
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if (err)
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return err;
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/* Ensure we can access the GPU registers */
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kbase_pm_register_access_enable(kbdev);
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/* Find out GPU properties based on the GPU feature registers */
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kbase_gpuprops_set(kbdev);
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/* We're done accessing the GPU registers for now. */
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kbase_pm_register_access_disable(kbdev);
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err = kbase_hwaccess_pm_init(kbdev);
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if (err)
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goto fail_pm;
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err = kbase_install_interrupts(kbdev);
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if (err)
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goto fail_interrupts;
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return 0;
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fail_interrupts:
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kbase_hwaccess_pm_term(kbdev);
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fail_pm:
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kbasep_platform_device_term(kbdev);
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return err;
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}
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void kbase_backend_early_term(struct kbase_device *kbdev)
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{
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kbase_release_interrupts(kbdev);
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kbase_hwaccess_pm_term(kbdev);
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kbasep_platform_device_term(kbdev);
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}
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int kbase_backend_late_init(struct kbase_device *kbdev)
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{
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int err;
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err = kbase_hwaccess_pm_powerup(kbdev, PM_HW_ISSUES_DETECT);
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if (err)
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return err;
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err = kbase_backend_timer_init(kbdev);
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if (err)
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goto fail_timer;
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#ifdef CONFIG_MALI_DEBUG
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#ifndef CONFIG_MALI_NO_MALI
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if (kbasep_common_test_interrupt_handlers(kbdev) != 0) {
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dev_err(kbdev->dev, "Interrupt assigment check failed.\n");
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err = -EINVAL;
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goto fail_interrupt_test;
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}
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#endif /* !CONFIG_MALI_NO_MALI */
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#endif /* CONFIG_MALI_DEBUG */
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err = kbase_job_slot_init(kbdev);
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if (err)
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goto fail_job_slot;
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init_waitqueue_head(&kbdev->hwaccess.backend.reset_wait);
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return 0;
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fail_job_slot:
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#ifdef CONFIG_MALI_DEBUG
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#ifndef CONFIG_MALI_NO_MALI
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fail_interrupt_test:
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#endif /* !CONFIG_MALI_NO_MALI */
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#endif /* CONFIG_MALI_DEBUG */
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kbase_backend_timer_term(kbdev);
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fail_timer:
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kbase_hwaccess_pm_halt(kbdev);
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return err;
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}
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void kbase_backend_late_term(struct kbase_device *kbdev)
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{
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kbase_job_slot_halt(kbdev);
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kbase_job_slot_term(kbdev);
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kbase_backend_timer_term(kbdev);
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kbase_hwaccess_pm_halt(kbdev);
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}
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