diff options
| author | shaoyunl <shaoyun.liu@amd.com> | 2021-09-08 22:12:55 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-09-14 15:57:11 -0400 |
| commit | 8e6d0b699635ecc5bad8629b8da685621aa416ca (patch) | |
| tree | 2c23b8c8a1b658ed6b38b15e8cd10d7bb1180431 /drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | |
| parent | 3da35006fef89d15d101622445d7f4760953a5f1 (diff) | |
drm/amdgpu: Get atomicOps info from Host for sriov setup
The AtomicOp Requester Enable bit is reserved in VFs and the PF value applies to all
associated VFs. so guest driver can not directly enable the atomicOps for VF, it
depends on PF to enable it. In current design, amdgpu driver will get the enabled
atomicOps bits through private pf2vf data
Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 41c6b3aacd37..aefa96bcbbab 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -3530,17 +3530,6 @@ int amdgpu_device_init(struct amdgpu_device *adev, DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)adev->rmmio_base); DRM_INFO("register mmio size: %u\n", (unsigned)adev->rmmio_size); - /* enable PCIE atomic ops */ - r = pci_enable_atomic_ops_to_root(adev->pdev, - PCI_EXP_DEVCAP2_ATOMIC_COMP32 | - PCI_EXP_DEVCAP2_ATOMIC_COMP64); - if (r) { - adev->have_atomics_support = false; - DRM_INFO("PCIE atomic ops is not supported\n"); - } else { - adev->have_atomics_support = true; - } - amdgpu_device_get_pcie_info(adev); if (amdgpu_mcbp) @@ -3563,6 +3552,19 @@ int amdgpu_device_init(struct amdgpu_device *adev, if (r) return r; + /* enable PCIE atomic ops */ + if (amdgpu_sriov_vf(adev)) + adev->have_atomics_support = ((struct amd_sriov_msg_pf2vf_info *) + adev->virt.fw_reserve.p_pf2vf)->pcie_atomic_ops_enabled_flags == + (PCI_EXP_DEVCAP2_ATOMIC_COMP32 | PCI_EXP_DEVCAP2_ATOMIC_COMP64); + else + adev->have_atomics_support = + !pci_enable_atomic_ops_to_root(adev->pdev, + PCI_EXP_DEVCAP2_ATOMIC_COMP32 | + PCI_EXP_DEVCAP2_ATOMIC_COMP64); + if (!adev->have_atomics_support) + dev_info(adev->dev, "PCIE atomic ops is not supported\n"); + /* doorbell bar mapping and doorbell index init*/ amdgpu_device_doorbell_init(adev); |