145 lines
3.1 KiB
C
145 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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#ifndef _SLBC_OPS_H_
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#define _SLBC_OPS_H_
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#include <linux/list.h>
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#include <linux/bitops.h>
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/* error code */
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#define EWAIT_RELEASE 1 /* wait for release */
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#define ENOT_AVAILABLE 2 /* not available for now */
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#define EREQ_DONE 3 /* already requested */
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#define EREQ_MASKED 4 /* req madk bit set */
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#define EDISABLED 5 /* req madk bit set */
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/* call back return value */
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#define CB_DONE 0 /* no need to use*/
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#define CB_OK 1 /* ready to use/release */
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/* slot status */
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#define SLOT_AVAILABLE 0 /* slot available*/
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#define SLOT_NOT_FOUND 1 /* slot not found */
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#define SLOT_USED 2 /* slot used */
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/* sid status */
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#define SID_NOT_FOUND 0xffff
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/* need to modify slbc_uid_str */
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enum slbc_uid {
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UID_MM_VENC = 1,
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UID_MM_DISP,
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UID_MM_MDP,
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UID_MM_VDEC,
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UID_MD_DPMAIF,
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UID_AI_MDLA,
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UID_AI_ISP,
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UID_GPU,
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UID_HIFI3,
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UID_CPU,
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UID_TEST,
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UID_MAX,
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};
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#define UID_MM_BITS_1 (BIT(UID_MM_DISP) | BIT(UID_MM_MDP))
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#define BIT_IN_MM_BITS_1(x) ((x) & UID_MM_BITS_1)
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enum slbc_type {
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TP_BUFFER = 0,
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TP_CACHE,
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};
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#define ACP_ONLY_BIT 2
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enum slbc_flag {
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FG_SECURE = BIT(0),
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FG_POWER = BIT(1),
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FG_ACP_ONLY = BIT(ACP_ONLY_BIT),
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FG_ACP_1_4 = BIT(ACP_ONLY_BIT + 1),
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FG_ACP_2_4 = BIT(ACP_ONLY_BIT + 2),
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FG_ACP_3_4 = BIT(ACP_ONLY_BIT + 3),
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FG_ACP_4_4 = BIT(ACP_ONLY_BIT + 4),
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};
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#define FG_ACP_BITS (FG_ACP_1_4 | FG_ACP_2_4 | FG_ACP_3_4 | FG_ACP_4_4)
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#define SLBC_TRY_FLAG_BIT(d, bit) (((d)->flag & (bit)) == (bit))
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struct slbc_data {
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unsigned int uid;
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int type;
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ssize_t size;
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int flag;
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/* below used by slbc driver */
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void __iomem *paddr;
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void __iomem *vaddr;
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unsigned int sid;
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int slot_used;
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void *config;
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int ref;
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int pwr_ref;
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};
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struct slbc_ops {
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struct list_head node;
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struct slbc_data *data;
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int (*activate)(struct slbc_data *data);
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void (*deactivate)(struct slbc_data *data);
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};
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#if IS_ENABLED(CONFIG_MTK_SLBC)
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extern int register_slbc_ops(struct slbc_ops *ops);
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extern int unregister_slbc_ops(struct slbc_ops *ops);
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extern int slbc_request(struct slbc_data *data);
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extern int slbc_release(struct slbc_data *data);
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extern int slbc_power_on(struct slbc_data *data);
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extern int slbc_power_off(struct slbc_data *data);
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extern int slbc_secure_on(struct slbc_data *data);
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extern int slbc_secure_off(struct slbc_data *data);
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#else
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__attribute__ ((weak))
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int register_slbc_ops(struct slbc_ops *ops)
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{
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return -EDISABLED;
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};
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__attribute__ ((weak))
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int unregister_slbc_ops(struct slbc_ops *ops)
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{
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return -EDISABLED;
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};
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__attribute__ ((weak))
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int slbc_request(struct slbc_data *data)
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{
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return -EDISABLED;
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};
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__attribute__ ((weak))
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int slbc_release(struct slbc_data *data)
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{
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return -EDISABLED;
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};
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__attribute__ ((weak))
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int slbc_power_on(struct slbc_data *data)
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{
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return -EDISABLED;
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};
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__attribute__ ((weak))
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int slbc_power_off(struct slbc_data *data)
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{
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return -EDISABLED;
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};
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__attribute__ ((weak))
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int slbc_secure_on(struct slbc_data *data)
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{
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return -EDISABLED;
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};
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__attribute__ ((weak))
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int slbc_secure_off(struct slbc_data *data)
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{
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return -EDISABLED;
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};
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#endif /* CONFIG_MTK_SLBC */
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#endif /* _SLBC_OPS_H_ */
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