diff options
| author |   Jack Xiao <Jack.Xiao@amd.com> | 2019-05-24 00:13:14 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-07-01 14:54:40 -0500 |
| commit | b2109d8ed6976569ba20da4db6eb64392ec7879d (patch) | |
| tree | 9b9d65151831953d8135ded1ca9ea892aea363d6 | |
| parent | drm/amdgpu: add field indicating if has PCIE atomics support (diff) | |
| download | linux-dev-b2109d8ed6976569ba20da4db6eb64392ec7879d.tar.xz linux-dev-b2109d8ed6976569ba20da4db6eb64392ec7879d.zip | |
drm/amdgpu: enable PCIE atomics ops support
GPU atomics operation depends on PCIE atomics support.
Always enable PCIE atomics ops support in case that
it hasn't been enabled.
Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index ea79763577c6..802809aa801d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2596,6 +2596,17 @@ int amdgpu_device_init(struct amdgpu_device *adev, if (adev->rio_mem == NULL) DRM_INFO("PCI I/O BAR is not found.\n"); + /* 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) |