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7224072e6e
Add QCN6122 platform support. QCN6122 is a PCIe based solution that is attached to and enumerated by the WPSS (Wireless Processor SubSystem) Q6 processor. Though it is a PCIe device, since it is not attached to APSS processor (Application Processor SubSystem), APSS will be unaware of such a decice and hence it is registered to the APSS processor as a platform device(AHB). Because of this hybrid nature, it is called as a hybrid bus device. As such, QCN6122 is a hybrid bus type device and follows the same codepath as for WCN6750. Co-developed-by: George Moussalem <george.moussalem@outlook.com> Signed-off-by: Sowmiya Sree Elavalagan <ssreeela@codeaurora.org> Signed-off-by: George Moussalem <george.moussalem@outlook.com>
111 lines
3.7 KiB
Diff
111 lines
3.7 KiB
Diff
From: George Moussalem <george.moussalem@outlook.com>
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Date: Wed, 27 Oct 2024 16:34:11 +0400
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Subject: [PATCH] wifi: ath11k: add multipd support for QCN6122
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IPQ5018/QCN6122 platforms use multi PD (protection domains) to avoid having
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one instance of the running Q6 firmware crashing resulting in crashing the
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others. See below patch for more info:
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https://lore.kernel.org/all/20231110091939.3025413-1-quic_mmanikan@quicinc.com/
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The IPQ5018 platform can have multiple (2) QCN6122 wifi cards. To differentiate
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the two, the PD instance number (1 or 2) is added to the QMI service instance
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ID, which the QCN6122 firmware also expects. IPQ5018 is always the first PD, so
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the QCN6122 cards should be the second or third.
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Signed-off-by: George Moussalem <george.moussalem@outlook.com>
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---
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--- a/drivers/net/wireless/ath/ath11k/ahb.c
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+++ b/drivers/net/wireless/ath/ath11k/ahb.c
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@@ -434,6 +434,7 @@ static void ath11k_ahb_init_qmi_ce_confi
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cfg->svc_to_ce_map_len = ab->hw_params.svc_to_ce_map_len;
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cfg->svc_to_ce_map = ab->hw_params.svc_to_ce_map;
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ab->qmi.service_ins_id = ab->hw_params.qmi_service_ins_id;
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+ ab->qmi.service_ins_id += ab->userpd_id;
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}
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static void ath11k_ahb_free_ext_irq(struct ath11k_base *ab)
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@@ -1082,6 +1083,27 @@ err_unregister:
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return ret;
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}
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+static int ath11k_get_userpd_id(struct device *dev)
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+{
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+ int ret;
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+ int userpd_id = 0;
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+ const char *subsys_name;
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+
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+ ret = of_property_read_string(dev->of_node,
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+ "qcom,userpd-subsys-name",
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+ &subsys_name);
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+ if (ret)
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+ return 0;
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+
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+ if (strcmp(subsys_name, "q6v5_wcss_userpd2") == 0)
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+ userpd_id = ATH11K_QCN6122_USERPD_2;
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+ else if (strcmp(subsys_name, "q6v5_wcss_userpd3") == 0)
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+ userpd_id = ATH11K_QCN6122_USERPD_3;
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+ dev_info(dev, "Multipd architecture - userpd: %d\n", userpd_id + 1);
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+
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+ return userpd_id;
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+}
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+
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static int ath11k_ahb_fw_resource_deinit(struct ath11k_base *ab)
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{
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struct ath11k_ahb *ab_ahb = ath11k_ahb_priv(ab);
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@@ -1124,7 +1146,7 @@ static int ath11k_ahb_probe(struct platf
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const struct ath11k_hif_ops *hif_ops;
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const struct ath11k_pci_ops *pci_ops;
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enum ath11k_hw_rev hw_rev;
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- int ret;
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+ int ret, userpd_id;
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of_id = of_match_device(ath11k_ahb_of_match, &pdev->dev);
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if (!of_id) {
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@@ -1154,6 +1176,7 @@ static int ath11k_ahb_probe(struct platf
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return -EOPNOTSUPP;
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}
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+ userpd_id = ath11k_get_userpd_id(&pdev->dev);
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ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
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if (ret) {
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dev_err(&pdev->dev, "failed to set 32-bit consistent dma\n");
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@@ -1170,6 +1193,7 @@ static int ath11k_ahb_probe(struct platf
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ab->hif.ops = hif_ops;
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ab->pdev = pdev;
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ab->hw_rev = hw_rev;
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+ ab->userpd_id = userpd_id;
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ab->fw_mode = ATH11K_FIRMWARE_MODE_NORMAL;
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platform_set_drvdata(pdev, ab);
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--- a/drivers/net/wireless/ath/ath11k/core.h
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+++ b/drivers/net/wireless/ath/ath11k/core.h
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@@ -42,6 +42,9 @@
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#define ATH11K_INVALID_HW_MAC_ID 0xFF
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#define ATH11K_CONNECTION_LOSS_HZ (3 * HZ)
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+#define ATH11K_QCN6122_USERPD_2 1
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+#define ATH11K_QCN6122_USERPD_3 2
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+
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/* SMBIOS type containing Board Data File Name Extension */
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#define ATH11K_SMBIOS_BDF_EXT_TYPE 0xF8
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@@ -903,6 +906,7 @@ struct ath11k_base {
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struct list_head peers;
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wait_queue_head_t peer_mapping_wq;
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u8 mac_addr[ETH_ALEN];
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+ int userpd_id;
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int irq_num[ATH11K_IRQ_NUM_MAX];
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struct ath11k_ext_irq_grp ext_irq_grp[ATH11K_EXT_IRQ_GRP_NUM_MAX];
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struct ath11k_targ_cap target_caps;
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--- a/drivers/net/wireless/ath/ath11k/pci.c
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+++ b/drivers/net/wireless/ath/ath11k/pci.c
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@@ -388,6 +388,8 @@ static void ath11k_pci_init_qmi_ce_confi
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} else
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ab->qmi.service_ins_id = ab->hw_params.qmi_service_ins_id;
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+ ab->qmi.service_ins_id += ab->userpd_id;
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+
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ath11k_ce_get_shadow_config(ab, &cfg->shadow_reg_v2,
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&cfg->shadow_reg_v2_len);
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}
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