mirror of
git://nv-tegra.nvidia.com/linux-hwpm.git
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7f1249c9e9
Initial change for libnvsochwpm userspace library. Change-Id: I20b11f9d253b65583db97dfebd9ff78b4d33d50c Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/3267999 Reviewed-by: Vasuki Shankar <vasukis@nvidia.com> Reviewed-by: Yifei Wan <ywan@nvidia.com> GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
108 lines
4.3 KiB
C++
108 lines
4.3 KiB
C++
/* SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: GPL-2.0-only
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*/
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#ifndef __NV_SOC_HWPM_LOADER_H__
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#define __NV_SOC_HWPM_LOADER_H__
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#include <dlfcn.h>
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#include <stdio.h>
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#include <errno.h>
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#include "nv_soc_hwpm.h"
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typedef struct {
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void* handle;
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decltype(nv_soc_hwpm_init)* nv_soc_hwpm_init_fn;
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decltype(nv_soc_hwpm_exit)* nv_soc_hwpm_exit_fn;
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decltype(nv_soc_hwpm_system_get_info)* nv_soc_hwpm_system_get_info_fn;
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decltype(nv_soc_hwpm_get_devices)* nv_soc_hwpm_get_devices_fn;
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decltype(nv_soc_hwpm_device_get_info)* nv_soc_hwpm_device_get_info_fn;
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decltype(nv_soc_hwpm_ip_get_info)* nv_soc_hwpm_ip_get_info_fn;
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decltype(nv_soc_hwpm_resource_get_info)* nv_soc_hwpm_resource_get_info_fn;
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decltype(nv_soc_hwpm_session_alloc)* nv_soc_hwpm_session_alloc_fn;
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decltype(nv_soc_hwpm_session_free)* nv_soc_hwpm_session_free_fn;
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decltype(nv_soc_hwpm_session_get_info)* nv_soc_hwpm_session_get_info_fn;
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decltype(nv_soc_hwpm_session_reserve_resources)* nv_soc_hwpm_session_reserve_resources_fn;
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decltype(nv_soc_hwpm_session_reserve_all_resources)* nv_soc_hwpm_session_reserve_all_resources_fn;
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decltype(nv_soc_hwpm_session_alloc_pma)* nv_soc_hwpm_session_alloc_pma_fn;
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decltype(nv_soc_hwpm_session_set_get_pma_state)* nv_soc_hwpm_session_set_get_pma_state_fn;
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decltype(nv_soc_hwpm_session_get_hs_credits)* nv_soc_hwpm_session_get_hs_credits_fn;
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decltype(nv_soc_hwpm_session_config_hs_credits)* nv_soc_hwpm_session_config_hs_credits_fn;
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decltype(nv_soc_hwpm_session_start)* nv_soc_hwpm_session_start_fn;
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decltype(nv_soc_hwpm_session_regops)* nv_soc_hwpm_session_regops_fn;
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decltype(nv_soc_hwpm_session_setup_trigger)* nv_soc_hwpm_session_setup_trigger_fn;
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} nv_soc_hwpm_api_table;
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#define XSTR(a) STR(a)
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#define STR(a) #a
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#define GET_HWPM_SYM(table, name) GET_HWPM_SYM_FN(table, name, name ## _fn)
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#define GET_HWPM_SYM_FN(table, name, name_fn) \
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table->name_fn = (decltype(name)* )dlsym(table->handle, XSTR(name)); \
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if (table->name_fn == NULL) { \
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fprintf (stderr, "%s\n", dlerror()); \
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return -EINVAL; \
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}
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static inline int load_nv_soc_hwpm(const char* path, nv_soc_hwpm_api_table* table) {
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if (table == NULL)
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return -EINVAL;
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if (table->handle != NULL) {
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fprintf (stderr, "NvSocHwpm already loaded\n");
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return -EINVAL;
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}
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table->handle = dlopen (path, RTLD_LAZY);
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if (!table->handle) {
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fprintf (stderr, "Failed to load NvSocHwpm: %s\n", dlerror());
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return -EINVAL;
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}
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GET_HWPM_SYM(table, nv_soc_hwpm_init);
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GET_HWPM_SYM(table, nv_soc_hwpm_exit);
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GET_HWPM_SYM(table, nv_soc_hwpm_system_get_info);
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GET_HWPM_SYM(table, nv_soc_hwpm_get_devices);
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GET_HWPM_SYM(table, nv_soc_hwpm_device_get_info);
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GET_HWPM_SYM(table, nv_soc_hwpm_ip_get_info);
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GET_HWPM_SYM(table, nv_soc_hwpm_resource_get_info);
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GET_HWPM_SYM(table, nv_soc_hwpm_session_alloc);
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GET_HWPM_SYM(table, nv_soc_hwpm_session_free);
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GET_HWPM_SYM(table, nv_soc_hwpm_session_get_info);
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GET_HWPM_SYM(table, nv_soc_hwpm_session_reserve_resources);
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GET_HWPM_SYM(table, nv_soc_hwpm_session_reserve_all_resources);
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GET_HWPM_SYM(table, nv_soc_hwpm_session_alloc_pma);
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GET_HWPM_SYM(table, nv_soc_hwpm_session_set_get_pma_state);
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GET_HWPM_SYM(table, nv_soc_hwpm_session_get_hs_credits);
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GET_HWPM_SYM(table, nv_soc_hwpm_session_config_hs_credits);
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GET_HWPM_SYM(table, nv_soc_hwpm_session_start);
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GET_HWPM_SYM(table, nv_soc_hwpm_session_regops);
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GET_HWPM_SYM(table, nv_soc_hwpm_session_setup_trigger);
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return 0;
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}
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static inline int unload_nv_soc_hwpm(nv_soc_hwpm_api_table* table) {
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if (table == NULL)
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return -EINVAL;
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if (table->handle == NULL)
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return 0;
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dlclose(table->handle);
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table->handle = NULL;
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return 0;
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}
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#endif /* __NV_SOC_HWPM_LOADER_H__ */
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