From 3177b3c52f62e262c6a8eff19358ca128c26d518 Mon Sep 17 00:00:00 2001 From: Jim Qu Date: Thu, 8 Nov 2018 13:02:00 +0800 Subject: drm/amdgpu/powerper: add vega20 BACO functions Signed-off-by: Jim Qu Reviewed-by: Alex Deucher Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/powerplay/hwmgr/vega20_baco.c | 81 +++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 drivers/gpu/drm/amd/powerplay/hwmgr/vega20_baco.c (limited to 'drivers/gpu/drm/amd/powerplay/hwmgr/vega20_baco.c') 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..0d883b358df2 --- /dev/null +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_baco.c @@ -0,0 +1,81 @@ +#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 -1; + + } else if (state == BACO_STATE_OUT) { + if (smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ExitBaco)) + return -1; + if (!soc15_baco_program_registers(hwmgr, clean_baco_tbl, + ARRAY_SIZE(clean_baco_tbl))) + return -1; + } + + return 0; +} -- cgit v1.2.3-55-g7522