diff options
Diffstat (limited to 'dvalin/kernel/drivers/gpu/arm/midgard/arbiter/mali_kbase_arbiter_interface.h')
| -rw-r--r-- | dvalin/kernel/drivers/gpu/arm/midgard/arbiter/mali_kbase_arbiter_interface.h | 70 |
1 files changed, 44 insertions, 26 deletions
diff --git a/dvalin/kernel/drivers/gpu/arm/midgard/arbiter/mali_kbase_arbiter_interface.h b/dvalin/kernel/drivers/gpu/arm/midgard/arbiter/mali_kbase_arbiter_interface.h index 5d5d8a7..c0137f7 100644 --- a/dvalin/kernel/drivers/gpu/arm/midgard/arbiter/mali_kbase_arbiter_interface.h +++ b/dvalin/kernel/drivers/gpu/arm/midgard/arbiter/mali_kbase_arbiter_interface.h @@ -1,28 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * - * (C) COPYRIGHT 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 - * - *//* SPDX-License-Identifier: GPL-2.0 */ - -/* - * - * (C) COPYRIGHT 2019-2020 ARM Limited. All rights reserved. + * (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 @@ -38,7 +17,6 @@ * along with this program; if not, you can access it online at * http://www.gnu.org/licenses/gpl-2.0.html. * - * */ /** @@ -50,7 +28,7 @@ #define _MALI_KBASE_ARBITER_INTERFACE_H_ /** - * @brief Mali arbiter interface version + * Mali arbiter interface version * * This specifies the current version of the configuration interface. Whenever * the arbiter interface changes, so that integration effort is required, the @@ -61,8 +39,15 @@ * 1 - Added the Mali arbiter configuration interface. * 2 - Strip out reference code from header * 3 - Removed DVFS utilization interface (DVFS moved to arbiter side) + * 4 - Added max_config support + * 5 - Added GPU clock frequency reporting support from arbiter */ -#define MALI_KBASE_ARBITER_INTERFACE_VERSION 3 +#define MALI_KBASE_ARBITER_INTERFACE_VERSION 5 + +/** + * NO_FREQ is used in case platform doesn't support reporting frequency + */ +#define NO_FREQ 0 struct arbiter_if_dev; @@ -108,6 +93,27 @@ struct arbiter_if_arb_vm_ops { * If successful, will respond with a vm_arb_gpu_stopped message. */ void (*arb_vm_gpu_lost)(struct device *dev); + + /** + * arb_vm_max_config() - Send max config info to the VM + * @dev: The arbif kernel module device. + * @max_l2_slices: The maximum number of L2 slices. + * @max_core_mask: The largest core mask. + * + * Informs KBase the maximum resources that can be allocated to the + * partition in use. + */ + void (*arb_vm_max_config)(struct device *dev, uint32_t max_l2_slices, + uint32_t max_core_mask); + + /** + * arb_vm_update_freq() - GPU clock frequency has been updated + * @dev: The arbif kernel module device. + * @freq: GPU clock frequency value reported from arbiter + * + * Informs KBase that the GPU clock frequency has been updated. + */ + void (*arb_vm_update_freq)(struct device *dev, uint32_t freq); }; /** @@ -126,6 +132,11 @@ struct arbiter_if_vm_arb_ops { * @dev: The device structure to supply in the callbacks. * @ops: The callbacks that the device driver supports * (none are optional). + * + * Return: + * * 0 - successful. + * * -EINVAL - invalid argument. + * * -EPROBE_DEFER - module dependencies are not yet available. */ int (*vm_arb_register_dev)(struct arbiter_if_dev *arbif_dev, struct device *dev, struct arbiter_if_arb_vm_ops *ops); @@ -137,6 +148,13 @@ struct arbiter_if_vm_arb_ops { void (*vm_arb_unregister_dev)(struct arbiter_if_dev *arbif_dev); /** + * vm_arb_gpu_get_max_config() - Request the max config from the + * Arbiter. + * @arbif_dev: The arbiter interface we want to issue the request. + */ + void (*vm_arb_get_max_config)(struct arbiter_if_dev *arbif_dev); + + /** * vm_arb_gpu_request() - Ask the arbiter interface for GPU access. * @arbif_dev: The arbiter interface we want to issue the request. */ |