From: Kiran K <kiran.k@intel.com>
Date: Tue, 4 Mar 2025 16:21:35 +0000 (+0530)
Subject: Bluetooth: btintel_pcie: Trigger device coredump on hardware exception
X-Git-Tag: v6.15-rc1~160^2~3^2~19
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=15f6f62114c872a833f692f6268bb558fe55db92;p=thirdparty%2Flinux.git

Bluetooth: btintel_pcie: Trigger device coredump on hardware exception

Driver dumps device core dump on firmware exception.

Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
---

diff --git a/drivers/bluetooth/btintel_pcie.c b/drivers/bluetooth/btintel_pcie.c
index a499bad58b53f..f3ab5b41b0507 100644
--- a/drivers/bluetooth/btintel_pcie.c
+++ b/drivers/bluetooth/btintel_pcie.c
@@ -60,6 +60,7 @@ MODULE_DEVICE_TABLE(pci, btintel_pcie_table);
 #define BTINTEL_PCIE_MAGIC_NUM	0xA5A5A5A5
 
 #define BTINTEL_PCIE_TRIGGER_REASON_USER_TRIGGER	0x17A2
+#define BTINTEL_PCIE_TRIGGER_REASON_FW_ASSERT		0x1E61
 
 /* Alive interrupt context */
 enum {
@@ -1202,6 +1203,11 @@ static void btintel_pcie_msix_hw_exp_handler(struct btintel_pcie_data *data)
 
 	if (test_and_set_bit(BTINTEL_PCIE_HWEXP_INPROGRESS, &data->flags))
 		return;
+
+	/* Trigger device core dump when there is HW  exception */
+	if (!test_and_set_bit(BTINTEL_PCIE_COREDUMP_INPROGRESS, &data->flags))
+		data->dmp_hdr.trigger_reason = BTINTEL_PCIE_TRIGGER_REASON_FW_ASSERT;
+
 	queue_work(data->workqueue, &data->rx_work);
 }