blob: 8a0773b80864ca3cb3695421dc6980d6171b9d80 [file] [log] [blame]
/*
* 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.
*
*/
#include "amdgpu.h"
#include "athub_v4_1_0.h"
#include "athub/athub_4_1_0_offset.h"
#include "athub/athub_4_1_0_sh_mask.h"
#include "soc15_common.h"
static uint32_t athub_v4_1_0_get_cg_cntl(struct amdgpu_device *adev)
{
uint32_t data;
switch (amdgpu_ip_version(adev, ATHUB_HWIP, 0)) {
case IP_VERSION(4, 1, 0):
data = RREG32_SOC15(ATHUB, 0, regATHUB_MISC_CNTL);
break;
default:
data = 0;
break;
}
return data;
}
static void athub_v4_1_0_set_cg_cntl(struct amdgpu_device *adev, uint32_t data)
{
switch (amdgpu_ip_version(adev, ATHUB_HWIP, 0)) {
case IP_VERSION(4, 1, 0):
WREG32_SOC15(ATHUB, 0, regATHUB_MISC_CNTL, data);
break;
default:
break;
}
}
static void
athub_v4_1_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
bool enable)
{
uint32_t def, data;
def = data = athub_v4_1_0_get_cg_cntl(adev);
if (enable && (adev->cg_flags & AMD_CG_SUPPORT_ATHUB_MGCG))
data |= ATHUB_MISC_CNTL__CG_ENABLE_MASK;
else
data &= ~ATHUB_MISC_CNTL__CG_ENABLE_MASK;
if (def != data)
athub_v4_1_0_set_cg_cntl(adev, data);
}
static void
athub_v4_1_0_update_medium_grain_light_sleep(struct amdgpu_device *adev,
bool enable)
{
uint32_t def, data;
def = data = athub_v4_1_0_get_cg_cntl(adev);
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;
/* AMD_CG_SUPPORT_ATHUB_LS */
if (data & ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK)
*flags |= AMD_CG_SUPPORT_ATHUB_LS;
}