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107 lines
3.1 KiB
107 lines
3.1 KiB
6 years ago
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/* Copyright (c) 2019-2020, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __HGSL_TCSR_H
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#define __HGSL_TCSR_H
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#include <linux/device.h>
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#include <linux/irqreturn.h>
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#include <linux/platform_device.h>
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/*
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* We need to separate bit slots between KMD and GMU,
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* to avoid one processor signaling back to itself.
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* GMU should have the same definitions.
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*
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* Allocated 4 bits for KMD and 2 for GMU. 3 KMD bits
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* can be used by submission and 1 GMU bits for TS
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* retire. The other 1 bit is reserved for furture use.
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*/
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#define TCSR_KMD_TRIGGER_IRQ_ID_0 0
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#define TCSR_KMD_TRIGGER_IRQ_ID_1 1
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#define TCSR_KMD_TRIGGER_IRQ_ID_2 2
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#define TCSR_KMD_TRIGGER_IRQ_ID_3 3
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#define TCSR_GMU_TRIGGER_IRQ_ID_0 8
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#define TCSR_GMU_TRIGGER_IRQ_ID_1 9
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/* Define Source and Destination IRQ for KMD */
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#define TCSR_SRC_IRQ_ID_0 TCSR_KMD_TRIGGER_IRQ_ID_0
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#define TCSR_SRC_IRQ_ID_1 TCSR_KMD_TRIGGER_IRQ_ID_1
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#define TCSR_SRC_IRQ_ID_2 TCSR_KMD_TRIGGER_IRQ_ID_2
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#define TCSR_SRC_IRQ_ID_3 TCSR_KMD_TRIGGER_IRQ_ID_3
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#define TCSR_DEST_IRQ_ID_0 TCSR_GMU_TRIGGER_IRQ_ID_0
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#define TCSR_DEST_IRQ_ID_1 TCSR_GMU_TRIGGER_IRQ_ID_1
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#define TCSR_DEST_IRQ_MASK_0 (1 << TCSR_DEST_IRQ_ID_0)
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#define TCSR_DEST_IRQ_MASK_1 (1 << TCSR_DEST_IRQ_ID_1)
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#define TCSR_DEST_IRQ_MASK (TCSR_DEST_IRQ_MASK_0 | TCSR_DEST_IRQ_MASK_1)
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enum hgsl_tcsr_role {
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HGSL_TCSR_ROLE_SENDER = 0,
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HGSL_TCSR_ROLE_RECEIVER = 1,
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HGSL_TCSR_ROLE_MAX,
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};
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struct hgsl_tcsr;
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#ifdef CONFIG_QCOM_HGSL_TCSR_SIGNAL
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struct hgsl_tcsr *hgsl_tcsr_request(struct platform_device *pdev,
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enum hgsl_tcsr_role role,
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struct device *client,
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irqreturn_t (*isr)(struct device *, u32));
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void hgsl_tcsr_free(struct hgsl_tcsr *tcsr);
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int hgsl_tcsr_enable(struct hgsl_tcsr *tcsr);
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void hgsl_tcsr_disable(struct hgsl_tcsr *tcsr);
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bool hgsl_tcsr_is_enabled(struct hgsl_tcsr *tcsr);
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void hgsl_tcsr_irq_trigger(struct hgsl_tcsr *tcsr, int irq_id);
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void hgsl_tcsr_irq_enable(struct hgsl_tcsr *tcsr, u32 mask, bool enable);
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#else
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static inline struct hgsl_tcsr *hgsl_tcsr_request(struct platform_device *pdev,
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enum hgsl_tcsr_role role,
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struct device *client,
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irqreturn_t (*isr)(struct device *, u32))
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{
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return NULL;
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}
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static inline void hgsl_tcsr_free(struct hgsl_tcsr *tcsr)
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{
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}
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static inline int hgsl_tcsr_enable(struct hgsl_tcsr *tcsr)
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{
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return -ENODEV;
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}
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static inline void hgsl_tcsr_disable(struct hgsl_tcsr *tcsr)
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{
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}
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static inline bool hgsl_tcsr_is_enabled(struct hgsl_tcsr *tcsr)
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{
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return false;
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}
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static inline void hgsl_tcsr_irq_trigger(struct hgsl_tcsr *tcsr, int irq_id)
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{
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}
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static inline void hgsl_tcsr_irq_enable(struct hgsl_tcsr *tcsr, u32 mask,
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bool enable)
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{
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}
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#endif
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#endif /* __HGSL_TCSR_H */
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