Commit b2109d8e authored by Jack Xiao's avatar Jack Xiao Committed by Alex Deucher
Browse files

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: default avatarJack Xiao <Jack.Xiao@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent bae17d2a

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

+11 −0
Original line number Diff line number Diff line
@@ -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)

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