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/*
* Copyright 2018 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 "df_v3_6.h"
#include "df/df_3_6_default.h"
#include "df/df_3_6_offset.h"
#include "df/df_3_6_sh_mask.h"
static u32 df_v3_6_channel_number[] = {1, 2, 0, 4, 0, 8, 0,
16, 32, 0, 0, 0, 2, 4, 8};
static void df_v3_6_init(struct amdgpu_device *adev)
{
}
static void df_v3_6_enable_broadcast_mode(struct amdgpu_device *adev,
bool enable)
{
u32 tmp;
if (enable) {
tmp = RREG32_SOC15(DF, 0, mmFabricConfigAccessControl);
tmp &= ~FabricConfigAccessControl__CfgRegInstAccEn_MASK;
WREG32_SOC15(DF, 0, mmFabricConfigAccessControl, tmp);
} else
WREG32_SOC15(DF, 0, mmFabricConfigAccessControl,
mmFabricConfigAccessControl_DEFAULT);
}
static u32 df_v3_6_get_fb_channel_number(struct amdgpu_device *adev)
{
u32 tmp;
tmp = RREG32_SOC15(DF, 0, mmDF_CS_UMC_AON0_DramBaseAddress0);
tmp &= DF_CS_UMC_AON0_DramBaseAddress0__IntLvNumChan_MASK;
tmp >>= DF_CS_UMC_AON0_DramBaseAddress0__IntLvNumChan__SHIFT;
return tmp;
}
static u32 df_v3_6_get_hbm_channel_number(struct amdgpu_device *adev)
{
int fb_channel_number;
fb_channel_number = adev->df_funcs->get_fb_channel_number(adev);
if (fb_channel_number >= ARRAY_SIZE(df_v3_6_channel_number))
fb_channel_number = 0;
return df_v3_6_channel_number[fb_channel_number];
}
static void df_v3_6_update_medium_grain_clock_gating(struct amdgpu_device *adev,
bool enable)
{
u32 tmp;
if (adev->cg_flags & AMD_CG_SUPPORT_DF_MGCG) {
/* Put DF on broadcast mode */
adev->df_funcs->enable_broadcast_mode(adev, true);
if (enable) {
tmp = RREG32_SOC15(DF, 0,
mmDF_PIE_AON0_DfGlobalClkGater);
tmp &= ~DF_PIE_AON0_DfGlobalClkGater__MGCGMode_MASK;
tmp |= DF_V3_6_MGCG_ENABLE_15_CYCLE_DELAY;
WREG32_SOC15(DF, 0,
mmDF_PIE_AON0_DfGlobalClkGater, tmp);
} else {
tmp = RREG32_SOC15(DF, 0,
mmDF_PIE_AON0_DfGlobalClkGater);
tmp &= ~DF_PIE_AON0_DfGlobalClkGater__MGCGMode_MASK;
tmp |= DF_V3_6_MGCG_DISABLE;
WREG32_SOC15(DF, 0,
mmDF_PIE_AON0_DfGlobalClkGater, tmp);
}
/* Exit broadcast mode */
adev->df_funcs->enable_broadcast_mode(adev, false);
}
}
static void df_v3_6_get_clockgating_state(struct amdgpu_device *adev,
u32 *flags)
{
u32 tmp;
/* AMD_CG_SUPPORT_DF_MGCG */
tmp = RREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater);
if (tmp & DF_V3_6_MGCG_ENABLE_15_CYCLE_DELAY)
*flags |= AMD_CG_SUPPORT_DF_MGCG;
}
const struct amdgpu_df_funcs df_v3_6_funcs = {
.init = df_v3_6_init,
.enable_broadcast_mode = df_v3_6_enable_broadcast_mode,
.get_fb_channel_number = df_v3_6_get_fb_channel_number,
.get_hbm_channel_number = df_v3_6_get_hbm_channel_number,
.update_medium_grain_clock_gating =
df_v3_6_update_medium_grain_clock_gating,
.get_clockgating_state = df_v3_6_get_clockgating_state,
};
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