diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/df_v3_6.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/df_v3_6.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/df_v3_6.c b/drivers/gpu/drm/amd/amdgpu/df_v3_6.c new file mode 100644 index 000000000000..60608b3df881 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/df_v3_6.c @@ -0,0 +1,116 @@ +/* + * 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; + + /* Put DF on broadcast mode */ + adev->df_funcs->enable_broadcast_mode(adev, true); + + if (enable && (adev->cg_flags & AMD_CG_SUPPORT_DF_MGCG)) { + 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, +}; |