Query the sub-revision field in the IP Discovery table for the VFs to obtain their revision ID. Meanwhile, read the revision ID from the strap register for the PF.
Signed-off-by: Perry Yuan <[email protected]> Reviewed-by: Hawking Zhang <[email protected]> --- drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 4 ++++ drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c | 24 +++++++++++++----------- 2 files changed, 17 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 2041737a5fbe..72897cf1ac81 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -1841,6 +1841,10 @@ static void gmc_v9_4_3_init_vram_info(struct amdgpu_device *adev) if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(9, 5, 0)) adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM3E; + if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(9, 4, 4) && + adev->rev_id == 0x3) + adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM3E; + if (!(adev->flags & AMD_IS_APU) && !amdgpu_sriov_vf(adev)) { vram_info = RREG32(regBIF_BIOS_SCRATCH_4); adev->gmc.vram_vendor = vram_info & 0xF; diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c index 1c22bc11c1f8..bdfd2917e3ca 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c @@ -41,19 +41,21 @@ static void nbio_v7_9_remap_hdp_registers(struct amdgpu_device *adev) static u32 nbio_v7_9_get_rev_id(struct amdgpu_device *adev) { - u32 tmp; - - tmp = IP_VERSION_SUBREV(amdgpu_ip_version_full(adev, NBIO_HWIP, 0)); - /* If it is VF or subrevision holds a non-zero value, that should be used */ - if (tmp || amdgpu_sriov_vf(adev)) - return tmp; + u32 rev_id; - /* If discovery subrev is not updated, use register version */ - tmp = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_DEV0_EPF0_STRAP0); - tmp = REG_GET_FIELD(tmp, RCC_STRAP0_RCC_DEV0_EPF0_STRAP0, - STRAP_ATI_REV_ID_DEV0_F0); + /* + * fetch the sub-revision field from the IP-discovery table + * (returns zero if the table entry is not populated). + */ + if (amdgpu_sriov_vf(adev)) { + rev_id = IP_VERSION_SUBREV(amdgpu_ip_version_full(adev, NBIO_HWIP, 0)); + } else { + rev_id = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_DEV0_EPF0_STRAP0); + rev_id = REG_GET_FIELD(rev_id, RCC_STRAP0_RCC_DEV0_EPF0_STRAP0, + STRAP_ATI_REV_ID_DEV0_F0); + } - return tmp; + return rev_id; } static void nbio_v7_9_mc_access_enable(struct amdgpu_device *adev, bool enable) -- 2.34.1
