In some configuration, there is CPU-only (no memory) numa node. Don't
create crat memory sub-table for such node.
Signed-off-by: Oak Zeng <oak.z...@amd.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_crat.c | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
index 56e6dff..dd7772c 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
@@ -1583,7 +1583,8 @@ static int kfd_fill_cu_for_cpu(int numa_node_id, int
*avail_size,
* @avail_size: Available size in the memory
* @sub_type_hdr: Memory into which compute info will be filled in
*
- * Return 0 if successful else return -ve value
+ * Return memory size in bytes if successful else return -ve value
+ * Returning 0 means this numa node has no memory
*/
static int kfd_fill_mem_info_for_cpu(int numa_node_id, int *avail_size,
int proximity_domain,
@@ -1619,7 +1620,7 @@ static int kfd_fill_mem_info_for_cpu(int numa_node_id,
int *avail_size,
sub_type_hdr->length_high = upper_32_bits(mem_in_bytes);
sub_type_hdr->proximity_domain = proximity_domain;
- return 0;
+ return mem_in_bytes;
}
#ifdef CONFIG_X86_64
@@ -1746,11 +1747,15 @@ static int kfd_create_vcrat_image_cpu(void
*pcrat_image, size_t *size)
pr_err("fill mem for cpu failed\n");
return ret;
}
- crat_table->length += sub_type_hdr->length;
- crat_table->total_entries++;
- sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr +
- sub_type_hdr->length);
+ /* ret == 0: this node has no memory */
+ if (ret > 0) {
+ crat_table->length += sub_type_hdr->length;
+ crat_table->total_entries++;
+
+ sub_type_hdr = (typeof(sub_type_hdr))((char
*)sub_type_hdr +
+ sub_type_hdr->length);
+ }
if (kfd_numa_node_to_apic_id(numa_node_id) != -1) {
/* Fill in Subtype: IO Link */
--
2.7.4
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