diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c b/drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c index 315d57bb373d..754b11dea6f0 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c @@ -490,6 +490,18 @@ static void nbio_v2_3_apply_lc_spc_mode_wa(struct amdgpu_device *adev) } } +static void nbio_v2_3_apply_l1_link_width_reconfig_wa(struct amdgpu_device *adev) +{ + uint32_t reg_data = 0; + + if (adev->asic_type != CHIP_NAVI10) + return; + + reg_data = RREG32_PCIE(smnPCIE_LC_LINK_WIDTH_CNTL); + reg_data |= PCIE_LC_LINK_WIDTH_CNTL__LC_L1_RECONFIG_EN_MASK; + WREG32_PCIE(smnPCIE_LC_LINK_WIDTH_CNTL, reg_data); +} + const struct amdgpu_nbio_funcs nbio_v2_3_funcs = { .get_hdp_flush_req_offset = nbio_v2_3_get_hdp_flush_req_offset, .get_hdp_flush_done_offset = nbio_v2_3_get_hdp_flush_done_offset, @@ -512,4 +524,5 @@ const struct amdgpu_nbio_funcs nbio_v2_3_funcs = { .enable_aspm = nbio_v2_3_enable_aspm, .program_aspm = nbio_v2_3_program_aspm, .apply_lc_spc_mode_wa = nbio_v2_3_apply_lc_spc_mode_wa, + .apply_l1_link_width_reconfig_wa = nbio_v2_3_apply_l1_link_width_reconfig_wa, }; |