diff options
Diffstat (limited to 'dvalin/kernel/drivers/gpu/arm/midgard/ipa/mali_kbase_ipa.h')
| -rw-r--r-- | dvalin/kernel/drivers/gpu/arm/midgard/ipa/mali_kbase_ipa.h | 90 |
1 files changed, 69 insertions, 21 deletions
diff --git a/dvalin/kernel/drivers/gpu/arm/midgard/ipa/mali_kbase_ipa.h b/dvalin/kernel/drivers/gpu/arm/midgard/ipa/mali_kbase_ipa.h index 92aace9..c668af9 100644 --- a/dvalin/kernel/drivers/gpu/arm/midgard/ipa/mali_kbase_ipa.h +++ b/dvalin/kernel/drivers/gpu/arm/midgard/ipa/mali_kbase_ipa.h @@ -1,11 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * - * (C) COPYRIGHT 2016-2019 ARM Limited. All rights reserved. + * (C) COPYRIGHT 2016-2021 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 * Foundation, and any use by you of this program is subject to the terms - * of such GNU licence. + * 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 @@ -16,8 +17,6 @@ * 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 - * */ #ifndef _KBASE_IPA_H_ @@ -28,6 +27,20 @@ struct devfreq; /** + * enum kbase_ipa_block_type - Type of block for which power estimation is done. + * + * @KBASE_IPA_BLOCK_TYPE_TOP_LEVEL: Top-level block, that covers CSHW, + * MEMSYS, Tiler. + * @KBASE_IPA_BLOCK_TYPE_SHADER_CORES: All Shader cores. + * @KBASE_IPA_BLOCK_TYPE_NUM: Number of blocks. + */ +enum kbase_ipa_block_type { + KBASE_IPA_BLOCK_TYPE_TOP_LEVEL, + KBASE_IPA_BLOCK_TYPE_SHADER_CORES, + KBASE_IPA_BLOCK_TYPE_NUM +}; + +/** * struct kbase_ipa_model - Object describing a particular IPA model. * @kbdev: pointer to kbase device * @model_data: opaque pointer to model specific data, accessed @@ -89,7 +102,8 @@ struct kbase_ipa_model_ops { int (*init)(struct kbase_ipa_model *model); /* Called immediately after init(), or when a parameter is changed, so * that any coefficients derived from model parameters can be - * recalculated. */ + * recalculated + */ int (*recalculate)(struct kbase_ipa_model *model); void (*term)(struct kbase_ipa_model *model); /* @@ -101,7 +115,9 @@ struct kbase_ipa_model_ops { * is then scaled by the IPA framework according to the current OPP's * frequency and voltage. * - * Return: 0 on success, or an error code. + * Return: 0 on success, or an error code. -EOVERFLOW error code will + * indicate that sampling interval was too large and no meaningful + * scaling for GPU utiliation can be done. */ int (*get_dynamic_coeff)(struct kbase_ipa_model *model, u32 *coeffp); /* @@ -115,6 +131,18 @@ struct kbase_ipa_model_ops { * Return: 0 on success, or an error code. */ int (*get_static_coeff)(struct kbase_ipa_model *model, u32 *coeffp); + + /* + * reset_counter_data() - Reset the HW counter data used for calculating + * dynamic power coefficient + * @model: pointer to model + * + * This method is currently applicable only to the counter based model. + * The next call to get_dynamic_coeff() will have to calculate the + * dynamic power coefficient based on the HW counter data generated + * from this point onwards. + */ + void (*reset_counter_data)(struct kbase_ipa_model *model); }; /** @@ -164,6 +192,17 @@ const struct kbase_ipa_model_ops *kbase_ipa_model_ops_find(struct kbase_device * const char *name); /** + * kbase_ipa_counter_model_ops_find - Lookup an IPA counter model using its name + * @kbdev: pointer to kbase device + * @name: name of counter model to lookup + * + * Return: Pointer to counter model's 'ops' structure, or NULL if the lookup + * failed. + */ +const struct kbase_ipa_model_ops *kbase_ipa_counter_model_ops_find( + struct kbase_device *kbdev, const char *name); + +/** * kbase_ipa_model_name_from_id - Find the best model for a given GPU ID * @gpu_id: GPU ID of GPU the model will be used for * @@ -173,6 +212,16 @@ const struct kbase_ipa_model_ops *kbase_ipa_model_ops_find(struct kbase_device * const char *kbase_ipa_model_name_from_id(u32 gpu_id); /** + * kbase_ipa_counter_model_name_from_id - Find the best counter model for a + * given GPU ID + * @gpu_id: GPU ID of GPU the counter model will be used for + * + * Return: The name of the appropriate counter-based model, or NULL if the + * no counter model exists. + */ +const char *kbase_ipa_counter_model_name_from_id(u32 gpu_id); + +/** * kbase_ipa_init_model - Initilaize the particular IPA model * @kbdev: pointer to kbase device * @ops: pointer to object containing model specific methods. @@ -183,7 +232,7 @@ const char *kbase_ipa_model_name_from_id(u32 gpu_id); * Return: pointer to kbase_ipa_model on success, NULL on error */ struct kbase_ipa_model *kbase_ipa_init_model(struct kbase_device *kbdev, - const struct kbase_ipa_model_ops *ops); + const struct kbase_ipa_model_ops *ops); /** * kbase_ipa_term_model - Terminate the particular IPA model * @model: pointer to the IPA model object, already initialized @@ -202,16 +251,6 @@ void kbase_ipa_term_model(struct kbase_ipa_model *model); */ void kbase_ipa_protection_mode_switch_event(struct kbase_device *kbdev); -extern const struct kbase_ipa_model_ops kbase_g71_ipa_model_ops; -extern const struct kbase_ipa_model_ops kbase_g72_ipa_model_ops; -extern const struct kbase_ipa_model_ops kbase_g76_ipa_model_ops; -extern const struct kbase_ipa_model_ops kbase_g52_ipa_model_ops; -extern const struct kbase_ipa_model_ops kbase_g52_r1_ipa_model_ops; -extern const struct kbase_ipa_model_ops kbase_g51_ipa_model_ops; -extern const struct kbase_ipa_model_ops kbase_g77_ipa_model_ops; -extern const struct kbase_ipa_model_ops kbase_tnax_ipa_model_ops; -extern const struct kbase_ipa_model_ops kbase_tbex_ipa_model_ops; - /** * kbase_get_real_power() - get the real power consumption of the GPU * @df: dynamic voltage and frequency scaling information for the GPU. @@ -237,11 +276,20 @@ int kbase_get_real_power_locked(struct kbase_device *kbdev, u32 *power, unsigned long voltage); #endif /* MALI_UNIT_TEST */ -#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 4, 0) -extern struct devfreq_cooling_ops kbase_ipa_power_model_ops; -#else extern struct devfreq_cooling_power kbase_ipa_power_model_ops; -#endif + +/** + * kbase_ipa_reset_data() - Reset the data required for power estimation. + * @kbdev: Pointer to kbase device. + * + * This function is called to ensure a meaningful baseline for + * kbase_get_real_power(), when thermal governor starts the polling, and + * that is achieved by updating the GPU utilization metrics and retrieving + * the accumulated value of HW counters. + * Basically this function collects all the data required for power estimation + * but does not process it. + */ +void kbase_ipa_reset_data(struct kbase_device *kbdev); #else /* !(defined(CONFIG_MALI_DEVFREQ) && defined(CONFIG_DEVFREQ_THERMAL)) */ |