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c27787f2b7
Add the new panthor_pwr module, which provides basic power control management for Mali-G1 GPUs. The initial implementation includes infrastructure for initializing the PWR_CONTROL block, requesting and handling its IRQ, and checking for PWR_CONTROL support based on GPU architecture. The patch also integrates panthor_pwr with the device lifecycle (init, suspend, resume, and unplug) through the new API functions. It also registers the IRQ handler under the 'gpu' IRQ as the PWR_CONTROL block is located within the GPU_CONTROL block. Reviewed-by: Steven Price <steven.price@arm.com> Signed-off-by: Karunika Choo <karunika.choo@arm.com> Link: https://patch.msgid.link/20251125125548.3282320-4-karunika.choo@arm.com Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 or MIT */
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/* Copyright 2025 ARM Limited. All rights reserved. */
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#ifndef __PANTHOR_HW_H__
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#define __PANTHOR_HW_H__
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#include "panthor_device.h"
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#include "panthor_regs.h"
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/**
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* struct panthor_hw_ops - HW operations that are specific to a GPU
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*/
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struct panthor_hw_ops {
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/** @soft_reset: Soft reset function pointer */
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int (*soft_reset)(struct panthor_device *ptdev);
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/** @l2_power_off: L2 power off function pointer */
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void (*l2_power_off)(struct panthor_device *ptdev);
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/** @l2_power_on: L2 power on function pointer */
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int (*l2_power_on)(struct panthor_device *ptdev);
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};
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/**
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* struct panthor_hw - GPU specific register mapping and functions
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*/
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struct panthor_hw {
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/** @features: Bitmap containing panthor_hw_feature */
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/** @ops: Panthor HW specific operations */
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struct panthor_hw_ops ops;
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};
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int panthor_hw_init(struct panthor_device *ptdev);
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static inline int panthor_hw_soft_reset(struct panthor_device *ptdev)
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{
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return ptdev->hw->ops.soft_reset(ptdev);
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}
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static inline int panthor_hw_l2_power_on(struct panthor_device *ptdev)
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{
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return ptdev->hw->ops.l2_power_on(ptdev);
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}
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static inline void panthor_hw_l2_power_off(struct panthor_device *ptdev)
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{
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ptdev->hw->ops.l2_power_off(ptdev);
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}
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static inline bool panthor_hw_has_pwr_ctrl(struct panthor_device *ptdev)
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{
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return GPU_ARCH_MAJOR(ptdev->gpu_info.gpu_id) >= 14;
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}
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#endif /* __PANTHOR_HW_H__ */
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