drm/amd: Check that a system is a NUMA system before looking for SRAT

It's pointless on laptops to look for the SRAT table as these are not
NUMA.  Check the number of possible nodes is > 1 to decide whether to
look for SRAT.

Suggested-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
index 950af6820153b24db59a944e7a492bf0760f2ace..3dcd8f8bc98e56aa680ad1100a02e74cb4573697 100644 (file)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
@@ -2041,7 +2041,8 @@ static int kfd_fill_gpu_direct_io_link_to_cpu(int *avail_size,
        sub_type_hdr->proximity_domain_from = proximity_domain;
 
 #ifdef CONFIG_ACPI_NUMA
-       if (kdev->adev->pdev->dev.numa_node == NUMA_NO_NODE)
+       if (kdev->adev->pdev->dev.numa_node == NUMA_NO_NODE &&
+           num_possible_nodes() > 1)
                kfd_find_numa_node_in_srat(kdev);
 #endif
 #ifdef CONFIG_NUMA