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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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898b1dead9
To avoid users accessing them before the module has finished initializing them and make sure they are only created if dpm has properly initialized. Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
318 lines
7.7 KiB
C
318 lines
7.7 KiB
C
/*
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* Copyright 2015 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: AMD
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*
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*/
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#include "atom.h"
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#include "amdgpu.h"
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#include "amd_shared.h"
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include "amdgpu_pm.h"
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#include <drm/amdgpu_drm.h>
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#include "amdgpu_powerplay.h"
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#include "cik_dpm.h"
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#include "vi_dpm.h"
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static int amdgpu_powerplay_init(struct amdgpu_device *adev)
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{
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int ret = 0;
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struct amd_powerplay *amd_pp;
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amd_pp = &(adev->powerplay);
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if (adev->pp_enabled) {
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#ifdef CONFIG_DRM_AMD_POWERPLAY
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struct amd_pp_init *pp_init;
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pp_init = kzalloc(sizeof(struct amd_pp_init), GFP_KERNEL);
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if (pp_init == NULL)
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return -ENOMEM;
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pp_init->chip_family = adev->family;
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pp_init->chip_id = adev->asic_type;
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pp_init->device = amdgpu_cgs_create_device(adev);
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ret = amd_powerplay_init(pp_init, amd_pp);
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kfree(pp_init);
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#endif
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} else {
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amd_pp->pp_handle = (void *)adev;
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switch (adev->asic_type) {
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#ifdef CONFIG_DRM_AMDGPU_CIK
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case CHIP_BONAIRE:
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case CHIP_HAWAII:
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amd_pp->ip_funcs = &ci_dpm_ip_funcs;
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break;
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case CHIP_KABINI:
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case CHIP_MULLINS:
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case CHIP_KAVERI:
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amd_pp->ip_funcs = &kv_dpm_ip_funcs;
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break;
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#endif
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case CHIP_TOPAZ:
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amd_pp->ip_funcs = &iceland_dpm_ip_funcs;
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break;
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case CHIP_TONGA:
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amd_pp->ip_funcs = &tonga_dpm_ip_funcs;
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break;
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case CHIP_FIJI:
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amd_pp->ip_funcs = &fiji_dpm_ip_funcs;
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break;
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case CHIP_CARRIZO:
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case CHIP_STONEY:
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amd_pp->ip_funcs = &cz_dpm_ip_funcs;
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break;
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default:
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ret = -EINVAL;
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break;
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}
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}
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return ret;
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}
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static int amdgpu_pp_early_init(void *handle)
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{
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struct amdgpu_device *adev = (struct amdgpu_device *)handle;
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int ret = 0;
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#ifdef CONFIG_DRM_AMD_POWERPLAY
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switch (adev->asic_type) {
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case CHIP_TONGA:
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case CHIP_FIJI:
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adev->pp_enabled = (amdgpu_powerplay == 0) ? false : true;
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break;
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default:
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adev->pp_enabled = (amdgpu_powerplay > 0) ? true : false;
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break;
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}
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#else
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adev->pp_enabled = false;
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#endif
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ret = amdgpu_powerplay_init(adev);
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if (ret)
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return ret;
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if (adev->powerplay.ip_funcs->early_init)
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ret = adev->powerplay.ip_funcs->early_init(
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adev->powerplay.pp_handle);
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return ret;
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}
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static int amdgpu_pp_late_init(void *handle)
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{
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int ret = 0;
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struct amdgpu_device *adev = (struct amdgpu_device *)handle;
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if (adev->powerplay.ip_funcs->late_init)
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ret = adev->powerplay.ip_funcs->late_init(
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adev->powerplay.pp_handle);
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#ifdef CONFIG_DRM_AMD_POWERPLAY
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if (adev->pp_enabled)
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amdgpu_pm_sysfs_init(adev);
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#endif
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return ret;
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}
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static int amdgpu_pp_sw_init(void *handle)
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{
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int ret = 0;
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struct amdgpu_device *adev = (struct amdgpu_device *)handle;
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if (adev->powerplay.ip_funcs->sw_init)
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ret = adev->powerplay.ip_funcs->sw_init(
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adev->powerplay.pp_handle);
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#ifdef CONFIG_DRM_AMD_POWERPLAY
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if (adev->pp_enabled) {
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if (amdgpu_dpm == 0)
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adev->pm.dpm_enabled = false;
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else
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adev->pm.dpm_enabled = true;
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}
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#endif
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return ret;
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}
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static int amdgpu_pp_sw_fini(void *handle)
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{
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int ret = 0;
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struct amdgpu_device *adev = (struct amdgpu_device *)handle;
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if (adev->powerplay.ip_funcs->sw_fini)
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ret = adev->powerplay.ip_funcs->sw_fini(
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adev->powerplay.pp_handle);
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if (ret)
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return ret;
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#ifdef CONFIG_DRM_AMD_POWERPLAY
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if (adev->pp_enabled) {
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amdgpu_pm_sysfs_fini(adev);
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amd_powerplay_fini(adev->powerplay.pp_handle);
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}
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#endif
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return ret;
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}
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static int amdgpu_pp_hw_init(void *handle)
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{
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int ret = 0;
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struct amdgpu_device *adev = (struct amdgpu_device *)handle;
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if (adev->pp_enabled && adev->firmware.smu_load)
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amdgpu_ucode_init_bo(adev);
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if (adev->powerplay.ip_funcs->hw_init)
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ret = adev->powerplay.ip_funcs->hw_init(
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adev->powerplay.pp_handle);
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return ret;
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}
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static int amdgpu_pp_hw_fini(void *handle)
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{
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int ret = 0;
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struct amdgpu_device *adev = (struct amdgpu_device *)handle;
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if (adev->powerplay.ip_funcs->hw_fini)
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ret = adev->powerplay.ip_funcs->hw_fini(
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adev->powerplay.pp_handle);
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if (adev->pp_enabled && adev->firmware.smu_load)
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amdgpu_ucode_fini_bo(adev);
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return ret;
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}
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static int amdgpu_pp_suspend(void *handle)
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{
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int ret = 0;
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struct amdgpu_device *adev = (struct amdgpu_device *)handle;
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if (adev->powerplay.ip_funcs->suspend)
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ret = adev->powerplay.ip_funcs->suspend(
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adev->powerplay.pp_handle);
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return ret;
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}
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static int amdgpu_pp_resume(void *handle)
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{
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int ret = 0;
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struct amdgpu_device *adev = (struct amdgpu_device *)handle;
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if (adev->powerplay.ip_funcs->resume)
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ret = adev->powerplay.ip_funcs->resume(
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adev->powerplay.pp_handle);
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return ret;
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}
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static int amdgpu_pp_set_clockgating_state(void *handle,
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enum amd_clockgating_state state)
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{
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int ret = 0;
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struct amdgpu_device *adev = (struct amdgpu_device *)handle;
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if (adev->powerplay.ip_funcs->set_clockgating_state)
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ret = adev->powerplay.ip_funcs->set_clockgating_state(
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adev->powerplay.pp_handle, state);
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return ret;
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}
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static int amdgpu_pp_set_powergating_state(void *handle,
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enum amd_powergating_state state)
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{
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int ret = 0;
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struct amdgpu_device *adev = (struct amdgpu_device *)handle;
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if (adev->powerplay.ip_funcs->set_powergating_state)
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ret = adev->powerplay.ip_funcs->set_powergating_state(
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adev->powerplay.pp_handle, state);
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return ret;
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}
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static bool amdgpu_pp_is_idle(void *handle)
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{
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bool ret = true;
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struct amdgpu_device *adev = (struct amdgpu_device *)handle;
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if (adev->powerplay.ip_funcs->is_idle)
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ret = adev->powerplay.ip_funcs->is_idle(
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adev->powerplay.pp_handle);
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return ret;
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}
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static int amdgpu_pp_wait_for_idle(void *handle)
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{
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int ret = 0;
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struct amdgpu_device *adev = (struct amdgpu_device *)handle;
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if (adev->powerplay.ip_funcs->wait_for_idle)
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ret = adev->powerplay.ip_funcs->wait_for_idle(
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adev->powerplay.pp_handle);
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return ret;
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}
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static int amdgpu_pp_soft_reset(void *handle)
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{
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int ret = 0;
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struct amdgpu_device *adev = (struct amdgpu_device *)handle;
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if (adev->powerplay.ip_funcs->soft_reset)
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ret = adev->powerplay.ip_funcs->soft_reset(
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adev->powerplay.pp_handle);
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return ret;
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}
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static void amdgpu_pp_print_status(void *handle)
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{
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struct amdgpu_device *adev = (struct amdgpu_device *)handle;
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if (adev->powerplay.ip_funcs->print_status)
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adev->powerplay.ip_funcs->print_status(
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adev->powerplay.pp_handle);
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}
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const struct amd_ip_funcs amdgpu_pp_ip_funcs = {
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.early_init = amdgpu_pp_early_init,
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.late_init = amdgpu_pp_late_init,
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.sw_init = amdgpu_pp_sw_init,
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.sw_fini = amdgpu_pp_sw_fini,
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.hw_init = amdgpu_pp_hw_init,
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.hw_fini = amdgpu_pp_hw_fini,
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.suspend = amdgpu_pp_suspend,
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.resume = amdgpu_pp_resume,
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.is_idle = amdgpu_pp_is_idle,
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.wait_for_idle = amdgpu_pp_wait_for_idle,
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.soft_reset = amdgpu_pp_soft_reset,
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.print_status = amdgpu_pp_print_status,
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.set_clockgating_state = amdgpu_pp_set_clockgating_state,
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.set_powergating_state = amdgpu_pp_set_powergating_state,
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};
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