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authorYifan Zhang <yifan1.zhang@amd.com>2023-04-27 14:01:05 +0800
committerAlex Deucher <alexander.deucher@amd.com>2023-05-11 01:04:50 -0400
commitaf7828fbceed4f9e503034111066a0adef3db383 (patch)
treeae8719fdfe9b2abc60a67207eef8bbd824769a0e
parent476ac50fc30540e29191615a26aaf5f9dee91c49 (diff)
drm/amdgpu: set gfx9 onwards APU atomics support to be true
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>
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_device.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 981a9cfb63b5..e348a62ec0ec 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3757,6 +3757,12 @@ 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,