diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c b/drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c index ed31d133f07a..233be735165a 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c @@ -344,6 +344,121 @@ static u32 nbio_v4_3_get_rom_offset(struct amdgpu_device *adev) return rom_offset; } +#ifdef CONFIG_PCIEASPM +static void nbio_v4_3_program_ltr(struct amdgpu_device *adev) +{ + uint32_t def, data; + + def = RREG32_SOC15(NBIO, 0, regRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL); + data = 0x35EB; + data &= ~EP_PCIE_TX_LTR_CNTL__LTR_PRIV_MSG_DIS_IN_PM_NON_D0_MASK; + data &= ~EP_PCIE_TX_LTR_CNTL__LTR_PRIV_RST_LTR_IN_DL_DOWN_MASK; + if (def != data) + WREG32_SOC15(NBIO, 0, regRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL, data); + + def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP2); + data &= ~RCC_BIF_STRAP2__STRAP_LTR_IN_ASPML1_DIS_MASK; + if (def != data) + WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP2, data); + + def = data = RREG32_SOC15(NBIO, 0, regBIF_CFG_DEV0_EPF0_DEVICE_CNTL2); + if (adev->pdev->ltr_path) + data |= BIF_CFG_DEV0_EPF0_DEVICE_CNTL2__LTR_EN_MASK; + else + data &= ~BIF_CFG_DEV0_EPF0_DEVICE_CNTL2__LTR_EN_MASK; + if (def != data) + WREG32_SOC15(NBIO, 0, regBIF_CFG_DEV0_EPF0_DEVICE_CNTL2, data); +} +#endif + +static void nbio_v4_3_program_aspm(struct amdgpu_device *adev) +{ +#ifdef CONFIG_PCIEASPM + uint32_t def, data; + + if (!(adev->ip_versions[PCIE_HWIP][0] == IP_VERSION(7, 4, 0)) && + !(adev->ip_versions[PCIE_HWIP][0] == IP_VERSION(7, 6, 0))) + return; + + def = data = RREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL); + data &= ~PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK; + data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK; + data |= PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK; + if (def != data) + WREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL, data); + + def = data = RREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL7); + data |= PCIE_LC_CNTL7__LC_NBIF_ASPM_INPUT_EN_MASK; + if (def != data) + WREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL7, data); + + def = data = RREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL3); + data |= PCIE_LC_CNTL3__LC_DSC_DONT_ENTER_L23_AFTER_PME_ACK_MASK; + if (def != data) + WREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL3, data); + + def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP3); + data &= ~RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER_MASK; + data &= ~RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER_MASK; + if (def != data) + WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP3, data); + + def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP5); + data &= ~RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER_MASK; + if (def != data) + WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP5, data); + + def = data = RREG32_SOC15(NBIO, 0, regBIF_CFG_DEV0_EPF0_DEVICE_CNTL2); + data &= ~BIF_CFG_DEV0_EPF0_DEVICE_CNTL2__LTR_EN_MASK; + if (def != data) + WREG32_SOC15(NBIO, 0, regBIF_CFG_DEV0_EPF0_DEVICE_CNTL2, data); + + WREG32_SOC15(NBIO, 0, regBIF_CFG_DEV0_EPF0_PCIE_LTR_CAP, 0x10011001); + + def = data = RREG32_SOC15(NBIO, 0, regPSWUSP0_PCIE_LC_CNTL2); + data |= PSWUSP0_PCIE_LC_CNTL2__LC_ALLOW_PDWN_IN_L1_MASK | + PSWUSP0_PCIE_LC_CNTL2__LC_ALLOW_PDWN_IN_L23_MASK; + data &= ~PSWUSP0_PCIE_LC_CNTL2__LC_RCV_L0_TO_RCV_L0S_DIS_MASK; + if (def != data) + WREG32_SOC15(NBIO, 0, regPSWUSP0_PCIE_LC_CNTL2, data); + + def = data = RREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL4); + data |= PCIE_LC_CNTL4__LC_L1_POWERDOWN_MASK; + if (def != data) + WREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL4, data); + + def = data = RREG32_SOC15(NBIO, 0, regPCIE_LC_RXRECOVER_RXSTANDBY_CNTL); + data |= PCIE_LC_RXRECOVER_RXSTANDBY_CNTL__LC_RX_L0S_STANDBY_EN_MASK; + if (def != data) + WREG32_SOC15(NBIO, 0, regPCIE_LC_RXRECOVER_RXSTANDBY_CNTL, data); + + nbio_v4_3_program_ltr(adev); + + def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP3); + data |= 0x5DE0 << RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER__SHIFT; + data |= 0x0010 << RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER__SHIFT; + if (def != data) + WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP3, data); + + def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP5); + data |= 0x0010 << RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER__SHIFT; + if (def != data) + WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP5, data); + + def = data = RREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL); + data |= 0x0 << PCIE_LC_CNTL__LC_L0S_INACTIVITY__SHIFT; + data |= 0x9 << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT; + data &= ~PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK; + if (def != data) + WREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL, data); + + def = data = RREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL3); + data &= ~PCIE_LC_CNTL3__LC_DSC_DONT_ENTER_L23_AFTER_PME_ACK_MASK; + if (def != data) + WREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL3, data); +#endif +} + const struct amdgpu_nbio_funcs nbio_v4_3_funcs = { .get_hdp_flush_req_offset = nbio_v4_3_get_hdp_flush_req_offset, .get_hdp_flush_done_offset = nbio_v4_3_get_hdp_flush_done_offset, @@ -365,4 +480,5 @@ const struct amdgpu_nbio_funcs nbio_v4_3_funcs = { .init_registers = nbio_v4_3_init_registers, .remap_hdp_registers = nbio_v4_3_remap_hdp_registers, .get_rom_offset = nbio_v4_3_get_rom_offset, + .program_aspm = nbio_v4_3_program_aspm, }; |