1 files changed, 87 insertions, 56 deletions

diff --git a/drivers/net/wireless/ath/ath11k/qmi.c b/drivers/net/wireless/ath/ath11k/qmi.c
index 41fad03a3025..ff6a97e328b8 100644
--- a/drivers/net/wireless/ath/ath11k/qmi.c
+++ b/drivers/net/wireless/ath/ath11k/qmi.c
@@ -1,17 +1,19 @@
 // SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
- * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2025 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
  */
 
 #include <linux/elf.h>
+#include <linux/export.h>
 
 #include "qmi.h"
 #include "core.h"
 #include "debug.h"
 #include "hif.h"
 #include <linux/of.h>
-#include <linux/of_address.h>
+#include <linux/of_reserved_mem.h>
 #include <linux/ioport.h>
 #include <linux/firmware.h>
 #include <linux/of_irq.h>
@@ -1704,7 +1706,9 @@ static const struct qmi_elem_info qmi_wlfw_fw_init_done_ind_msg_v01_ei[] = {
 	},
 };
 
-static int ath11k_qmi_host_cap_send(struct ath11k_base *ab)
+/* clang stack usage explodes if this is inlined */
+static noinline_for_stack
+int ath11k_qmi_host_cap_send(struct ath11k_base *ab)
 {
 	struct qmi_wlanfw_host_cap_req_msg_v01 req;
 	struct qmi_wlanfw_host_cap_resp_msg_v01 resp;
@@ -1955,13 +1959,15 @@ static void ath11k_qmi_free_target_mem_chunk(struct ath11k_base *ab)
 	int i;
 
 	for (i = 0; i < ab->qmi.mem_seg_count; i++) {
-		if ((ab->hw_params.fixed_mem_region ||
-		     test_bit(ATH11K_FLAG_FIXED_MEM_RGN, &ab->dev_flags)) &&
-		     ab->qmi.target_mem[i].iaddr)
-			iounmap(ab->qmi.target_mem[i].iaddr);
+		if (!ab->qmi.target_mem[i].anyaddr)
+			continue;
 
-		if (!ab->qmi.target_mem[i].vaddr)
+		if (ab->hw_params.fixed_mem_region ||
+		    test_bit(ATH11K_FLAG_FIXED_MEM_RGN, &ab->dev_flags)) {
+			iounmap(ab->qmi.target_mem[i].iaddr);
+			ab->qmi.target_mem[i].iaddr = NULL;
 			continue;
+		}
 
 		dma_free_coherent(ab->dev,
 				  ab->qmi.target_mem[i].prev_size,
@@ -1989,6 +1995,15 @@ static int ath11k_qmi_alloc_target_mem_chunk(struct ath11k_base *ab)
 			    chunk->prev_size == chunk->size)
 				continue;
 
+			if (ab->qmi.mem_seg_count <= ATH11K_QMI_FW_MEM_REQ_SEGMENT_CNT) {
+				ath11k_dbg(ab, ATH11K_DBG_QMI,
+					   "size/type mismatch (current %d %u) (prev %d %u), try later with small size\n",
+					    chunk->size, chunk->type,
+					    chunk->prev_size, chunk->prev_type);
+				ab->qmi.target_mem_delayed = true;
+				return 0;
+			}
+
 			/* cannot reuse the existing chunk */
 			dma_free_coherent(ab->dev, chunk->prev_size,
 					  chunk->vaddr, chunk->paddr);
@@ -2025,23 +2040,14 @@ static int ath11k_qmi_alloc_target_mem_chunk(struct ath11k_base *ab)
 static int ath11k_qmi_assign_target_mem_chunk(struct ath11k_base *ab)
 {
 	struct device *dev = ab->dev;
-	struct device_node *hremote_node = NULL;
-	struct resource res;
+	struct resource res = {};
 	u32 host_ddr_sz;
 	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:
-			hremote_node = of_parse_phandle(dev->of_node, "memory-region", 0);
-			if (!hremote_node) {
-				ath11k_dbg(ab, ATH11K_DBG_QMI,
-					   "fail to get hremote_node\n");
-				return -ENODEV;
-			}
-
-			ret = of_address_to_resource(hremote_node, 0, &res);
-			of_node_put(hremote_node);
+			ret = of_reserved_mem_region_to_resource(dev->of_node, 0, &res);
 			if (ret) {
 				ath11k_dbg(ab, ATH11K_DBG_QMI,
 					   "fail to get reg from hremote\n");
@@ -2068,7 +2074,7 @@ static int ath11k_qmi_assign_target_mem_chunk(struct ath11k_base *ab)
 			break;
 		case BDF_MEM_REGION_TYPE:
 			ab->qmi.target_mem[idx].paddr = ab->hw_params.bdf_addr;
-			ab->qmi.target_mem[idx].vaddr = NULL;
+			ab->qmi.target_mem[idx].iaddr = NULL;
 			ab->qmi.target_mem[idx].size = ab->qmi.target_mem[i].size;
 			ab->qmi.target_mem[idx].type = ab->qmi.target_mem[i].type;
 			idx++;
@@ -2080,7 +2086,7 @@ static int ath11k_qmi_assign_target_mem_chunk(struct ath11k_base *ab)
 			}
 
 			if (ath11k_core_coldboot_cal_support(ab)) {
-				if (hremote_node) {
+				if (resource_size(&res)) {
 					ab->qmi.target_mem[idx].paddr =
 							res.start + host_ddr_sz;
 					ab->qmi.target_mem[idx].iaddr =
@@ -2091,10 +2097,11 @@ static int ath11k_qmi_assign_target_mem_chunk(struct ath11k_base *ab)
 				} else {
 					ab->qmi.target_mem[idx].paddr =
 						ATH11K_QMI_CALDB_ADDRESS;
+					ab->qmi.target_mem[idx].iaddr = NULL;
 				}
 			} else {
 				ab->qmi.target_mem[idx].paddr = 0;
-				ab->qmi.target_mem[idx].vaddr = NULL;
+				ab->qmi.target_mem[idx].iaddr = NULL;
 			}
 			ab->qmi.target_mem[idx].size = ab->qmi.target_mem[i].size;
 			ab->qmi.target_mem[idx].type = ab->qmi.target_mem[i].type;
@@ -2180,6 +2187,9 @@ static int ath11k_qmi_request_device_info(struct ath11k_base *ab)
 	ab->mem = bar_addr_va;
 	ab->mem_len = resp.bar_size;
 
+	if (!ab->hw_params.ce_remap)
+		ab->mem_ce = ab->mem;
+
 	return 0;
 out:
 	return ret;
@@ -2293,7 +2303,7 @@ static int ath11k_qmi_load_file_target_mem(struct ath11k_base *ab,
 	struct qmi_txn txn;
 	const u8 *temp = data;
 	void __iomem *bdf_addr = NULL;
-	int ret;
+	int ret = 0;
 	u32 remaining = len;
 
 	req = kzalloc(sizeof(*req), GFP_KERNEL);
@@ -2502,38 +2512,56 @@ out:
 static int ath11k_qmi_m3_load(struct ath11k_base *ab)
 {
 	struct m3_mem_region *m3_mem = &ab->qmi.m3_mem;
-	const struct firmware *fw;
+	const struct firmware *fw = NULL;
+	const void *m3_data;
 	char path[100];
+	size_t m3_len;
 	int ret;
 
-	fw = ath11k_core_firmware_request(ab, ATH11K_M3_FILE);
-	if (IS_ERR(fw)) {
-		ret = PTR_ERR(fw);
-		ath11k_core_create_firmware_path(ab, ATH11K_M3_FILE,
-						 path, sizeof(path));
-		ath11k_err(ab, "failed to load %s: %d\n", path, ret);
-		return ret;
-	}
+	if (m3_mem->vaddr)
+		/* m3 firmware buffer is already available in the DMA buffer */
+		return 0;
+
+	if (ab->fw.m3_data && ab->fw.m3_len > 0) {
+		/* firmware-N.bin had a m3 firmware file so use that */
+		m3_data = ab->fw.m3_data;
+		m3_len = ab->fw.m3_len;
+	} else {
+		/* No m3 file in firmware-N.bin so try to request old
+		 * separate m3.bin.
+		 */
+		fw = ath11k_core_firmware_request(ab, ATH11K_M3_FILE);
+		if (IS_ERR(fw)) {
+			ret = PTR_ERR(fw);
+			ath11k_core_create_firmware_path(ab, ATH11K_M3_FILE,
+							 path, sizeof(path));
+			ath11k_err(ab, "failed to load %s: %d\n", path, ret);
+			return ret;
+		}
 
-	if (m3_mem->vaddr || m3_mem->size)
-		goto skip_m3_alloc;
+		m3_data = fw->data;
+		m3_len = fw->size;
+	}
 
 	m3_mem->vaddr = dma_alloc_coherent(ab->dev,
-					   fw->size, &m3_mem->paddr,
+					   m3_len, &m3_mem->paddr,
 					   GFP_KERNEL);
 	if (!m3_mem->vaddr) {
 		ath11k_err(ab, "failed to allocate memory for M3 with size %zu\n",
-			   fw->size);
-		release_firmware(fw);
-		return -ENOMEM;
+			   m3_len);
+		ret = -ENOMEM;
+		goto out;
 	}
 
-skip_m3_alloc:
-	memcpy(m3_mem->vaddr, fw->data, fw->size);
-	m3_mem->size = fw->size;
+	memcpy(m3_mem->vaddr, m3_data, m3_len);
+	m3_mem->size = m3_len;
+
+	ret = 0;
+
+out:
 	release_firmware(fw);
 
-	return 0;
+	return ret;
 }
 
 static void ath11k_qmi_m3_free(struct ath11k_base *ab)
@@ -2549,7 +2577,9 @@ static void ath11k_qmi_m3_free(struct ath11k_base *ab)
 	m3_mem->size = 0;
 }
 
-static int ath11k_qmi_wlanfw_m3_info_send(struct ath11k_base *ab)
+/* clang stack usage explodes if this is inlined */
+static noinline_for_stack
+int ath11k_qmi_wlanfw_m3_info_send(struct ath11k_base *ab)
 {
 	struct m3_mem_region *m3_mem = &ab->qmi.m3_mem;
 	struct qmi_wlanfw_m3_info_req_msg_v01 req;
@@ -2841,7 +2871,7 @@ int ath11k_qmi_firmware_start(struct ath11k_base *ab,
 
 int ath11k_qmi_fwreset_from_cold_boot(struct ath11k_base *ab)
 {
-	int timeout;
+	long time_left;
 
 	if (!ath11k_core_coldboot_cal_support(ab) ||
 	    ab->hw_params.cbcal_restart_fw == 0)
@@ -2849,17 +2879,17 @@ int ath11k_qmi_fwreset_from_cold_boot(struct ath11k_base *ab)
 
 	ath11k_dbg(ab, ATH11K_DBG_QMI, "wait for cold boot done\n");
 
-	timeout = wait_event_timeout(ab->qmi.cold_boot_waitq,
-				     (ab->qmi.cal_done == 1),
-				     ATH11K_COLD_BOOT_FW_RESET_DELAY);
+	time_left = wait_event_timeout(ab->qmi.cold_boot_waitq,
+				       (ab->qmi.cal_done == 1),
+				       ATH11K_COLD_BOOT_FW_RESET_DELAY);
 
-	if (timeout <= 0) {
+	if (time_left <= 0) {
 		ath11k_warn(ab, "Coldboot Calibration timed out\n");
 		return -ETIMEDOUT;
 	}
 
 	/* reset the firmware */
-	ath11k_hif_power_down(ab);
+	ath11k_hif_power_down(ab, false);
 	ath11k_hif_power_up(ab);
 	ath11k_dbg(ab, ATH11K_DBG_QMI, "exit wait for cold boot done\n");
 	return 0;
@@ -2868,7 +2898,7 @@ EXPORT_SYMBOL(ath11k_qmi_fwreset_from_cold_boot);
 
 static int ath11k_qmi_process_coldboot_calibration(struct ath11k_base *ab)
 {
-	int timeout;
+	long time_left;
 	int ret;
 
 	ret = ath11k_qmi_wlanfw_mode_send(ab, ATH11K_FIRMWARE_MODE_COLD_BOOT);
@@ -2879,10 +2909,10 @@ static int ath11k_qmi_process_coldboot_calibration(struct ath11k_base *ab)
 
 	ath11k_dbg(ab, ATH11K_DBG_QMI, "Coldboot calibration wait started\n");
 
-	timeout = wait_event_timeout(ab->qmi.cold_boot_waitq,
-				     (ab->qmi.cal_done  == 1),
-				     ATH11K_COLD_BOOT_FW_RESET_DELAY);
-	if (timeout <= 0) {
+	time_left = wait_event_timeout(ab->qmi.cold_boot_waitq,
+				       (ab->qmi.cal_done  == 1),
+				       ATH11K_COLD_BOOT_FW_RESET_DELAY);
+	if (time_left <= 0) {
 		ath11k_warn(ab, "coldboot calibration timed out\n");
 		return 0;
 	}
@@ -3147,7 +3177,7 @@ static int ath11k_qmi_ops_new_server(struct qmi_handle *qmi_hdl,
 	sq->sq_node = service->node;
 	sq->sq_port = service->port;
 
-	ret = kernel_connect(qmi_hdl->sock, (struct sockaddr *)sq,
+	ret = kernel_connect(qmi_hdl->sock, (struct sockaddr_unsized *)sq,
 			     sizeof(*sq), 0);
 	if (ret) {
 		ath11k_warn(ab, "failed to connect to qmi remote service: %d\n", ret);
@@ -3231,7 +3261,8 @@ static void ath11k_qmi_driver_event_work(struct work_struct *work)
 		case ATH11K_QMI_EVENT_FW_INIT_DONE:
 			clear_bit(ATH11K_FLAG_QMI_FAIL, &ab->dev_flags);
 			if (test_bit(ATH11K_FLAG_REGISTERED, &ab->dev_flags)) {
-				ath11k_hal_dump_srng_stats(ab);
+				if (ab->is_reset)
+					ath11k_hal_dump_srng_stats(ab);
 				queue_work(ab->workqueue, &ab->restart_work);
 				break;
 			}