1 /*
2 * Copyright (c) 2025, MediaTek Inc. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7 #include <errno.h>
8
9 #include <common/debug.h>
10
11 #include <mtk_bl31_interface.h>
12 #include <mtk_sip_svc.h>
13
14 #define MODULE_TAG "[SLBC]"
15
16 enum {
17 MTK_SLBC_KERNEL_OP_CPU_DCC = 0,
18 };
19
slbc_kernel_handler(u_register_t x1,u_register_t x2,u_register_t x3,u_register_t x4,void * handle,struct smccc_res * smccc_ret)20 static u_register_t slbc_kernel_handler(u_register_t x1, u_register_t x2,
21 u_register_t x3, u_register_t x4,
22 void *handle,
23 struct smccc_res *smccc_ret)
24 {
25 uint32_t request_ops = (uint32_t)x1;
26 u_register_t ret = 0;
27
28 switch (request_ops) {
29 case MTK_SLBC_KERNEL_OP_CPU_DCC:
30 cpu_qos_change_dcc(x2, x3);
31 break;
32 default:
33 ERROR("%s: %s, unknown request_ops = %x\n", MODULE_TAG, __func__, request_ops);
34 ret = EIO;
35 break;
36 }
37
38 VERBOSE("%s: %s, request_ops = %x, ret = %lu\n", MODULE_TAG, __func__, request_ops, ret);
39 return ret;
40 }
41
42 /* Register SiP SMC service */
43 DECLARE_SMC_HANDLER(MTK_SIP_KERNEL_SLBC_CONTROL, slbc_kernel_handler);
44