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drm/amdgpu: set gfx9 onwards APU atomics support to be true

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APUs w/ gfx9 onwards doesn't reply on PCIe atomics, rather
it is internal path w/ native atomic support. Set have_atomics_support
to true.

Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Reviewed-by: Lang Yu <lang.yu@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Yifan Zhang 2023-04-27 14:01:05 +08:00 committed by Alex Deucher
parent 09d8a67912
commit 0e768043bf
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View file

@ -3758,6 +3758,12 @@ int amdgpu_device_init(struct amdgpu_device *adev,
adev->have_atomics_support = ((struct amd_sriov_msg_pf2vf_info *)
adev->virt.fw_reserve.p_pf2vf)->pcie_atomic_ops_support_flags ==
(PCI_EXP_DEVCAP2_ATOMIC_COMP32 | PCI_EXP_DEVCAP2_ATOMIC_COMP64);
/* APUs w/ gfx9 onwards doesn't reply on PCIe atomics, rather it is a
* internal path natively support atomics, set have_atomics_support to true.
*/
else if ((adev->flags & AMD_IS_APU) &&
(adev->ip_versions[GC_HWIP][0] > IP_VERSION(9, 0, 0)))
adev->have_atomics_support = true;
else
adev->have_atomics_support =
!pci_enable_atomic_ops_to_root(adev->pdev,