mirror of
git://nv-tegra.nvidia.com/linux-hwpm.git
synced 2025-12-23 01:35:10 +03:00
dd86a4afb2
- Add resource_info IOCTL to return status of HWPM resources. - Remove TEGRA_SOC_HWPM_RESOURCE_MSS_NVLINK which is duplicate of MSS_GPU_HUB. - Add logic for resource_info IOCTL in the driver code. - Ptimer and TSC timer have 1:1 relation. Hence timer relation IOCTLs are not required. Bug 3573882 Change-Id: I937c6c72636f0c786391a74785673060038d385e Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2707447 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com> Reviewed-by: Vasuki Shankar <vasukis@nvidia.com> Reviewed-by: Seema Khowala <seemaj@nvidia.com> Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com> GVS: Gerrit_Virtual_Submit
116 lines
2.8 KiB
C
116 lines
2.8 KiB
C
/*
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* Copyright (c) 2021-2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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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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#include <soc/tegra/fuse.h>
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#include <uapi/linux/tegra-soc-hwpm-uapi.h>
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#include <tegra_hwpm_log.h>
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#include <tegra_hwpm.h>
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#include <tegra_hwpm_common.h>
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#include <tegra_hwpm_static_analysis.h>
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int tegra_hwpm_reserve_rtr(struct tegra_soc_hwpm *hwpm)
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{
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int err = 0;
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struct tegra_soc_hwpm_chip *active_chip = hwpm->active_chip;
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tegra_hwpm_fn(hwpm, " ");
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err = tegra_hwpm_func_single_ip(hwpm, NULL,
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TEGRA_HWPM_RESERVE_GIVEN_RESOURCE,
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active_chip->get_rtr_int_idx(hwpm));
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if (err != 0) {
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tegra_hwpm_err(hwpm, "failed to reserve IP %d",
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active_chip->get_rtr_int_idx(hwpm));
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return err;
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}
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return err;
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}
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int tegra_hwpm_release_rtr(struct tegra_soc_hwpm *hwpm)
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{
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int err = 0;
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struct tegra_soc_hwpm_chip *active_chip = hwpm->active_chip;
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tegra_hwpm_fn(hwpm, " ");
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err = tegra_hwpm_func_single_ip(hwpm, NULL,
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TEGRA_HWPM_RELEASE_ROUTER,
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active_chip->get_rtr_int_idx(hwpm));
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if (err != 0) {
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tegra_hwpm_err(hwpm, "failed to release IP %d",
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active_chip->get_rtr_int_idx(hwpm));
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return err;
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}
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return err;
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}
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int tegra_hwpm_reserve_resource(struct tegra_soc_hwpm *hwpm, u32 resource)
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{
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struct tegra_soc_hwpm_chip *active_chip = hwpm->active_chip;
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u32 ip_idx = TEGRA_SOC_HWPM_IP_INACTIVE;
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int err = 0;
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tegra_hwpm_fn(hwpm, " ");
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tegra_hwpm_dbg(hwpm, hwpm_info,
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"User requesting to reserve resource %d", resource);
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/* Translate resource to ip_idx */
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if (!active_chip->is_resource_active(hwpm, resource, &ip_idx)) {
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tegra_hwpm_err(hwpm, "Requested resource %d is unavailable",
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resource);
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return -EINVAL;
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}
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err = tegra_hwpm_func_single_ip(hwpm, NULL,
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TEGRA_HWPM_RESERVE_GIVEN_RESOURCE, ip_idx);
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if (err != 0) {
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tegra_hwpm_err(hwpm, "failed to reserve IP %d", ip_idx);
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return err;
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}
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return 0;
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}
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int tegra_hwpm_bind_resources(struct tegra_soc_hwpm *hwpm)
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{
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int err = 0;
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tegra_hwpm_fn(hwpm, " ");
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err = tegra_hwpm_func_all_ip(hwpm, NULL, TEGRA_HWPM_BIND_RESOURCES);
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if (err != 0) {
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tegra_hwpm_err(hwpm, "failed to bind resources");
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return err;
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}
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return err;
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}
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int tegra_hwpm_release_resources(struct tegra_soc_hwpm *hwpm)
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{
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int ret = 0;
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tegra_hwpm_fn(hwpm, " ");
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ret = tegra_hwpm_func_all_ip(hwpm, NULL, TEGRA_HWPM_RELEASE_RESOURCES);
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if (ret != 0) {
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tegra_hwpm_err(hwpm, "failed to release resources");
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return ret;
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}
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return 0;
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}
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