diff options
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/hwmgr/vega20_baco.c')
-rw-r--r-- | drivers/gpu/drm/amd/powerplay/hwmgr/vega20_baco.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_baco.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_baco.c new file mode 100644 index 000000000000..5e8602a79b1c --- /dev/null +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_baco.c @@ -0,0 +1,103 @@ +/* + * 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 "soc15.h" +#include "soc15_hw_ip.h" +#include "soc15_common.h" +#include "vega20_inc.h" +#include "vega20_ppsmc.h" +#include "vega20_baco.h" + + + +static const struct soc15_baco_cmd_entry clean_baco_tbl[] = +{ + {CMD_WRITE, SOC15_REG_ENTRY(NBIF, 0, mmBIOS_SCRATCH_6), 0, 0, 0, 0}, + {CMD_WRITE, SOC15_REG_ENTRY(NBIF, 0, mmBIOS_SCRATCH_7), 0, 0, 0, 0}, +}; + +int vega20_baco_get_capability(struct pp_hwmgr *hwmgr, bool *cap) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev); + uint32_t reg; + + *cap = false; + if (!phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_BACO)) + return 0; + + if (((RREG32(0x17569) & 0x20000000) >> 29) == 0x1) { + reg = RREG32_SOC15(NBIF, 0, mmRCC_BIF_STRAP0); + + if (reg & RCC_BIF_STRAP0__STRAP_PX_CAPABLE_MASK) + *cap = true; + } + + return 0; +} + +int vega20_baco_get_state(struct pp_hwmgr *hwmgr, enum BACO_STATE *state) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev); + uint32_t reg; + + reg = RREG32_SOC15(NBIF, 0, mmBACO_CNTL); + + if (reg & BACO_CNTL__BACO_MODE_MASK) + /* gfx has already entered BACO state */ + *state = BACO_STATE_IN; + else + *state = BACO_STATE_OUT; + return 0; +} + +int vega20_baco_set_state(struct pp_hwmgr *hwmgr, enum BACO_STATE state) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev); + enum BACO_STATE cur_state; + uint32_t data; + + vega20_baco_get_state(hwmgr, &cur_state); + + if (cur_state == state) + /* aisc already in the target state */ + return 0; + + if (state == BACO_STATE_IN) { + data = RREG32_SOC15(THM, 0, mmTHM_BACO_CNTL); + data |= 0x80000000; + WREG32_SOC15(THM, 0, mmTHM_BACO_CNTL, data); + + + if(smum_send_msg_to_smc_with_parameter(hwmgr, PPSMC_MSG_EnterBaco, 0)) + return -EINVAL; + + } else if (state == BACO_STATE_OUT) { + if (smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ExitBaco)) + return -EINVAL; + if (!soc15_baco_program_registers(hwmgr, clean_baco_tbl, + ARRAY_SIZE(clean_baco_tbl))) + return -EINVAL; + } + + return 0; +} |