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

[ Upstream commit af7828fbceed4f9e503034111066a0adef3db383 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yifan Zhang 2023-04-27 14:01:05 +08:00 committed by Greg Kroah-Hartman
parent 5ae4a618a1
commit 3e336ad6f5

View File

@ -3734,6 +3734,12 @@ 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,