qcacmn: split srng history into small trunks

ring history array size is large. Change is aimed
to split the allocation into small trunks to avoid
memory allocation failure.

Change-Id: If977baab23718d0186ad2ce6d33319b52096f2f9
CRs-Fixed: 3479226

hal/wifi3.0/hal_internal.h

@@ -875,7 +875,7 @@ struct hal_srng {
 	uint8_t pointer_num_threshold;
 #ifdef HAL_SRNG_REG_HIS_DEBUG
 	/* pointer register writing history for this srng */
-	struct hal_srng_reg_his_ctx reg_his_ctx;
+	struct hal_srng_reg_his_ctx *reg_his_ctx;
 #endif
 };
 
@@ -890,7 +890,7 @@ struct hal_srng {
 static inline
 void hal_srng_reg_his_init(struct hal_srng *srng)
 {
-	qdf_atomic_set(&srng->reg_his_ctx.current_idx, -1);
+	qdf_atomic_set(&srng->reg_his_ctx->current_idx, -1);
 }
 
 /**
@@ -907,10 +907,10 @@ void hal_srng_reg_his_add(struct hal_srng *srng, uint32_t reg_val)
 	uint32_t write_idx;
 	struct hal_srng_reg_his_entry *reg_his_entry;
 
-	write_idx = qdf_atomic_inc_return(&srng->reg_his_ctx.current_idx);
+	write_idx = qdf_atomic_inc_return(&srng->reg_his_ctx->current_idx);
 	write_idx = write_idx & (HAL_SRNG_REG_MAX_ENTRIES - 1);
 
-	reg_his_entry = &srng->reg_his_ctx.reg_his_arr[write_idx];
+	reg_his_entry = &srng->reg_his_ctx->reg_his_arr[write_idx];
 
 	reg_his_entry->write_time = qdf_get_log_timestamp();
 	reg_his_entry->write_value = reg_val;

hal/wifi3.0/hal_srng.c

@@ -1117,6 +1117,42 @@ void hal_delayed_reg_write(struct hal_soc *hal_soc,
 #endif
 #endif
 
+#ifdef HAL_SRNG_REG_HIS_DEBUG
+inline void hal_free_srng_history(struct hal_soc *hal)
+{
+	int i;
+
+	for (i = 0; i < HAL_SRNG_ID_MAX; i++)
+		qdf_mem_free(hal->srng_list[i].reg_his_ctx);
+}
+
+inline bool hal_alloc_srng_history(struct hal_soc *hal)
+{
+	int i;
+
+	for (i = 0; i < HAL_SRNG_ID_MAX; i++) {
+		hal->srng_list[i].reg_his_ctx =
+			qdf_mem_malloc(sizeof(struct hal_srng_reg_his_ctx));
+		if (!hal->srng_list[i].reg_his_ctx) {
+			hal_err("srng_hist alloc failed");
+			hal_free_srng_history(hal);
+			return false;
+		}
+	}
+
+	return true;
+}
+#else
+inline void hal_free_srng_history(struct hal_soc *hal)
+{
+}
+
+inline bool hal_alloc_srng_history(struct hal_soc *hal)
+{
+	return true;
+}
+#endif
+
 void *hal_attach(struct hif_opaque_softc *hif_handle, qdf_device_t qdf_dev)
 {
 	struct hal_soc *hal;
@@ -1160,6 +1196,9 @@ void *hal_attach(struct hif_opaque_softc *hif_handle, qdf_device_t qdf_dev)
 	qdf_mem_zero(hal->shadow_wrptr_mem_vaddr,
 		sizeof(*(hal->shadow_wrptr_mem_vaddr)) * HAL_MAX_LMAC_RINGS);
 
+	if (!hal_alloc_srng_history(hal))
+		goto fail2;
+
 	for (i = 0; i < HAL_SRNG_ID_MAX; i++) {
 		hal->srng_list[i].initialized = 0;
 		hal->srng_list[i].ring_id = i;
@@ -1240,6 +1279,7 @@ void hal_detach(void *hal_soc)
 	qdf_minidump_remove(hal, sizeof(*hal), "hal_soc");
 	qdf_mem_free(hal->ops);
 
+	hal_free_srng_history(hal);
 	qdf_mem_free_consistent(hal->qdf_dev, hal->qdf_dev->dev,
 		sizeof(*(hal->shadow_rdptr_mem_vaddr)) * HAL_SRNG_ID_MAX,
 		hal->shadow_rdptr_mem_vaddr, hal->shadow_rdptr_mem_paddr, 0);