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| author | Le Ma <le.ma@amd.com> | 2022-04-02 14:39:59 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 16:45:29 +0300 |
| commit | 0c552ed38780f24b7ac235c3d10c6c94686ecfdf (patch) | |
| tree | 5c8bb30c898f2c3db5dc639888226b9069090fa8 /drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c | |
| parent | 1526ec9a3ed90e7ad36de7ef8aa2768b60af14df (diff) | |
| download | linux-0c552ed38780f24b7ac235c3d10c6c94686ecfdf.tar.xz | |
drm/amdgpu: add indirect r/w interface for smn address greater than 32bits
On multiple AIDs platform, bit[34:32] in SMD address is leveraged to access
nonAID0 register smn address and new PCI_INDEX_HI register is introduced
to access the higher bits.
v2: rebase on latest register accessors (Alex)
Signed-off-by: Le Ma <le.ma@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c index 962627005961..92e9c5ed95df 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c @@ -319,6 +319,11 @@ static u32 nbio_v7_9_get_pcie_data_offset(struct amdgpu_device *adev) return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX0_PCIE_DATA2); } +static u32 nbio_v7_9_get_pcie_index_hi_offset(struct amdgpu_device *adev) +{ + return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX0_PCIE_INDEX2_HI); +} + const struct nbio_hdp_flush_reg nbio_v7_9_hdp_flush_reg = { .ref_and_mask_cp0 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP0_MASK, .ref_and_mask_cp1 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP1_MASK, @@ -382,6 +387,7 @@ const struct amdgpu_nbio_funcs nbio_v7_9_funcs = { .get_hdp_flush_done_offset = nbio_v7_9_get_hdp_flush_done_offset, .get_pcie_index_offset = nbio_v7_9_get_pcie_index_offset, .get_pcie_data_offset = nbio_v7_9_get_pcie_data_offset, + .get_pcie_index_hi_offset = nbio_v7_9_get_pcie_index_hi_offset, .get_rev_id = nbio_v7_9_get_rev_id, .mc_access_enable = nbio_v7_9_mc_access_enable, .get_memsize = nbio_v7_9_get_memsize, |