diff options
Diffstat (limited to 'drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu9_baco.c')
-rw-r--r-- | drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu9_baco.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu9_baco.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu9_baco.c new file mode 100644 index 0000000000..de0a37f7c6 --- /dev/null +++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu9_baco.c @@ -0,0 +1,66 @@ +/* + * 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 "vega10_ip_offset.h" +#include "soc15_common.h" +#include "vega10_inc.h" +#include "smu9_baco.h" + +int smu9_baco_get_capability(struct pp_hwmgr *hwmgr, bool *cap) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev); + uint32_t reg, data; + + *cap = false; + if (!phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_BACO)) + return 0; + + WREG32(0x12074, 0xFFF0003B); + data = RREG32(0x12075); + + if (data == 0x1) { + reg = RREG32_SOC15(NBIF, 0, mmRCC_BIF_STRAP0); + + if (reg & RCC_BIF_STRAP0__STRAP_PX_CAPABLE_MASK) + *cap = true; + } + + return 0; +} + +int smu9_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; +} |