/* * Copyright 2023 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. *
*/
if (enable && (adev->cg_flags & AMD_CG_SUPPORT_ATHUB_LS))
data |= ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK; else
data &= ~ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK;
if (def != data)
athub_v4_1_0_set_cg_cntl(adev, data);
}
int athub_v4_1_0_set_clockgating(struct amdgpu_device *adev, enum amd_clockgating_state state)
{ if (amdgpu_sriov_vf(adev)) return 0;
switch (amdgpu_ip_version(adev, ATHUB_HWIP, 0)) { case IP_VERSION(4, 1, 0):
athub_v4_1_0_update_medium_grain_clock_gating(adev,
state == AMD_CG_STATE_GATE);
athub_v4_1_0_update_medium_grain_light_sleep(adev,
state == AMD_CG_STATE_GATE); break; default: break;
}
return 0;
}
void athub_v4_1_0_get_clockgating(struct amdgpu_device *adev, u64 *flags)
{ int data;
/* AMD_CG_SUPPORT_ATHUB_MGCG */
data = athub_v4_1_0_get_cg_cntl(adev); if (data & ATHUB_MISC_CNTL__CG_ENABLE_MASK)
*flags |= AMD_CG_SUPPORT_ATHUB_MGCG;
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