On 1/30/2025 1:16 PM, Krzysztof Kozlowski wrote:

On 30/01/2025 05:35, Raj Kumar Bhagat wrote:

quoted

@@ -2646,6 +2663,136 @@ static int ath12k_qmi_alloc_target_mem_chunk(struct ath12k_base *ab)
 	return ret;
 }
 
+static int ath12k_qmi_assign_target_mem_chunk(struct ath12k_base *ab)
+{
+	struct device_node *mem_node;
+	struct resource res, m3_res;
+	u32 bdf_start_addr;
+	int i, idx, ret;
+
+	for (i = 0, idx = 0; i < ab->qmi.mem_seg_count; i++) {
+		switch (ab->qmi.target_mem[i].type) {
+		case HOST_DDR_REGION_TYPE:
+			mem_node = ath12k_core_get_reserved_mem_by_name(ab, "q6-region");

Why cannot you use existing API for reserved memory -
of_reserved_mem_lookup()?

The of_reserved_mem_lookup() requires reserved memory node to read the memory and
return in the structure "struct reserved_mem".

The of_reserved_mem_lookup() would be used after we get the reserved memory node
using the API - ath12k_core_get_reserved_mem_by_name(ab, "q6-region");

In next version we would use of_reserved_mem_lookup(), Something like below:
    mem_node = ath12k_core_get_reserved_mem_by_name(ab, "q6-region");
    struct reserved_mem res = of_reserved_mem_lookup(mem_node)