| /* |
| * |
| * (C) COPYRIGHT 2013-2018 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 |
| * |
| */ |
| |
| /* |
| * Base kernel core availability APIs |
| */ |
| |
| #include <mali_kbase.h> |
| #include <mali_kbase_pm.h> |
| #include <backend/gpu/mali_kbase_pm_internal.h> |
| #ifdef CONFIG_MALI_NO_MALI |
| #include <backend/gpu/mali_kbase_model_dummy.h> |
| #endif |
| |
| int kbase_pm_ca_init(struct kbase_device *kbdev) |
| { |
| #ifdef CONFIG_MALI_DEVFREQ |
| struct kbase_pm_backend_data *pm_backend = &kbdev->pm.backend; |
| |
| if (kbdev->current_core_mask) |
| pm_backend->ca_cores_enabled = kbdev->current_core_mask; |
| else |
| pm_backend->ca_cores_enabled = |
| kbdev->gpu_props.props.raw_props.shader_present; |
| #endif |
| |
| return 0; |
| } |
| |
| void kbase_pm_ca_term(struct kbase_device *kbdev) |
| { |
| } |
| |
| #ifdef CONFIG_MALI_DEVFREQ |
| void kbase_devfreq_set_core_mask(struct kbase_device *kbdev, u64 core_mask) |
| { |
| struct kbase_pm_backend_data *pm_backend = &kbdev->pm.backend; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&kbdev->hwaccess_lock, flags); |
| |
| if (!(core_mask & kbdev->pm.debug_core_mask_all)) { |
| dev_err(kbdev->dev, "OPP core mask 0x%llX does not intersect with debug mask 0x%llX\n", |
| core_mask, kbdev->pm.debug_core_mask_all); |
| goto unlock; |
| } |
| |
| pm_backend->ca_cores_enabled = core_mask; |
| |
| kbase_pm_update_state(kbdev); |
| |
| unlock: |
| spin_unlock_irqrestore(&kbdev->hwaccess_lock, flags); |
| |
| dev_dbg(kbdev->dev, "Devfreq policy : new core mask=%llX\n", |
| pm_backend->ca_cores_enabled); |
| } |
| #endif |
| |
| u64 kbase_pm_ca_get_core_mask(struct kbase_device *kbdev) |
| { |
| #ifdef CONFIG_MALI_DEVFREQ |
| struct kbase_pm_backend_data *pm_backend = &kbdev->pm.backend; |
| #endif |
| |
| lockdep_assert_held(&kbdev->hwaccess_lock); |
| |
| #ifdef CONFIG_MALI_DEVFREQ |
| return pm_backend->ca_cores_enabled & kbdev->pm.debug_core_mask_all; |
| #else |
| return kbdev->gpu_props.props.raw_props.shader_present & |
| kbdev->pm.debug_core_mask_all; |
| #endif |
| } |
| |
| KBASE_EXPORT_TEST_API(kbase_pm_ca_get_core_mask); |
| |
| u64 kbase_pm_ca_get_instr_core_mask(struct kbase_device *kbdev) |
| { |
| lockdep_assert_held(&kbdev->hwaccess_lock); |
| |
| #ifdef CONFIG_MALI_NO_MALI |
| return (((1ull) << KBASE_DUMMY_MODEL_MAX_SHADER_CORES) - 1); |
| #else |
| return kbdev->pm.backend.pm_shaders_core_mask; |
| #endif |
| } |