#include "internal.h"
#include "iwl-fh.h"
#include "pcie/iwl-context-info-v2.h"
+#include "pcie/utils.h"
/* extended range in FW SRAM */
#define IWL_FW_MEM_EXTENDED_START 0x40000
#define IWL_FW_MEM_EXTENDED_END 0x57FFF
-void iwl_trans_pcie_dump_regs(struct iwl_trans *trans)
-{
-#define PCI_DUMP_SIZE 352
-#define PCI_MEM_DUMP_SIZE 64
-#define PCI_PARENT_DUMP_SIZE 524
-#define PREFIX_LEN 32
- struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
- struct pci_dev *pdev = trans_pcie->pci_dev;
- u32 i, pos, alloc_size, *ptr, *buf;
- char *prefix;
-
- if (trans_pcie->pcie_dbg_dumped_once)
- return;
-
- /* Should be a multiple of 4 */
- BUILD_BUG_ON(PCI_DUMP_SIZE > 4096 || PCI_DUMP_SIZE & 0x3);
- BUILD_BUG_ON(PCI_MEM_DUMP_SIZE > 4096 || PCI_MEM_DUMP_SIZE & 0x3);
- BUILD_BUG_ON(PCI_PARENT_DUMP_SIZE > 4096 || PCI_PARENT_DUMP_SIZE & 0x3);
-
- /* Alloc a max size buffer */
- alloc_size = PCI_ERR_ROOT_ERR_SRC + 4 + PREFIX_LEN;
- alloc_size = max_t(u32, alloc_size, PCI_DUMP_SIZE + PREFIX_LEN);
- alloc_size = max_t(u32, alloc_size, PCI_MEM_DUMP_SIZE + PREFIX_LEN);
- alloc_size = max_t(u32, alloc_size, PCI_PARENT_DUMP_SIZE + PREFIX_LEN);
-
- buf = kmalloc(alloc_size, GFP_ATOMIC);
- if (!buf)
- return;
- prefix = (char *)buf + alloc_size - PREFIX_LEN;
-
- IWL_ERR(trans, "iwlwifi transaction failed, dumping registers\n");
-
- /* Print wifi device registers */
- sprintf(prefix, "iwlwifi %s: ", pci_name(pdev));
- IWL_ERR(trans, "iwlwifi device config registers:\n");
- for (i = 0, ptr = buf; i < PCI_DUMP_SIZE; i += 4, ptr++)
- if (pci_read_config_dword(pdev, i, ptr))
- goto err_read;
- print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32, 4, buf, i, 0);
-
- IWL_ERR(trans, "iwlwifi device memory mapped registers:\n");
- for (i = 0, ptr = buf; i < PCI_MEM_DUMP_SIZE; i += 4, ptr++)
- *ptr = iwl_read32(trans, i);
- print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32, 4, buf, i, 0);
-
- pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR);
- if (pos) {
- IWL_ERR(trans, "iwlwifi device AER capability structure:\n");
- for (i = 0, ptr = buf; i < PCI_ERR_ROOT_COMMAND; i += 4, ptr++)
- if (pci_read_config_dword(pdev, pos + i, ptr))
- goto err_read;
- print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET,
- 32, 4, buf, i, 0);
- }
-
- /* Print parent device registers next */
- if (!pdev->bus->self)
- goto out;
-
- pdev = pdev->bus->self;
- sprintf(prefix, "iwlwifi %s: ", pci_name(pdev));
-
- IWL_ERR(trans, "iwlwifi parent port (%s) config registers:\n",
- pci_name(pdev));
- for (i = 0, ptr = buf; i < PCI_PARENT_DUMP_SIZE; i += 4, ptr++)
- if (pci_read_config_dword(pdev, i, ptr))
- goto err_read;
- print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32, 4, buf, i, 0);
-
- /* Print root port AER registers */
- pos = 0;
- pdev = pcie_find_root_port(pdev);
- if (pdev)
- pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR);
- if (pos) {
- IWL_ERR(trans, "iwlwifi root port (%s) AER cap structure:\n",
- pci_name(pdev));
- sprintf(prefix, "iwlwifi %s: ", pci_name(pdev));
- for (i = 0, ptr = buf; i <= PCI_ERR_ROOT_ERR_SRC; i += 4, ptr++)
- if (pci_read_config_dword(pdev, pos + i, ptr))
- goto err_read;
- print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32,
- 4, buf, i, 0);
- }
- goto out;
-
-err_read:
- print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32, 4, buf, i, 0);
- IWL_ERR(trans, "Read failed at 0x%X\n", i);
-out:
- trans_pcie->pcie_dbg_dumped_once = 1;
- kfree(buf);
-}
-
int iwl_trans_pcie_sw_reset(struct iwl_trans *trans, bool retake_ownership)
{
/* Reset entire device - do controller reset (results in SHRD_HW_RST) */
trans_pcie->ucode_write_complete, 5 * HZ);
if (!ret) {
IWL_ERR(trans, "Failed to load firmware chunk!\n");
- iwl_trans_pcie_dump_regs(trans);
+ iwl_trans_pcie_dump_regs(trans, trans_pcie->pci_dev);
return -ETIMEDOUT;
}
"Timeout waiting for hardware access (CSR_GP_CNTRL 0x%08x)\n",
cntrl);
- iwl_trans_pcie_dump_regs(trans);
+ iwl_trans_pcie_dump_regs(trans, trans_pcie->pci_dev);
if (iwlwifi_mod_params.remove_when_gone && cntrl == ~0U)
iwl_trans_pcie_reset(trans,
IMR_D2S_REQUESTED, 5 * HZ);
if (!ret || trans_pcie->imr_status == IMR_D2S_ERROR) {
IWL_ERR(trans, "Failed to copy IMR Memory chunk!\n");
- iwl_trans_pcie_dump_regs(trans);
+ iwl_trans_pcie_dump_regs(trans, trans_pcie->pci_dev);
return -ETIMEDOUT;
}
trans_pcie->imr_status = IMR_D2S_IDLE;
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/*
+ * Copyright (C) 2025 Intel Corporation
+ */
+
+#include <linux/pci.h>
+#include <linux/gfp.h>
+
+#include "iwl-io.h"
+#include "pcie/utils.h"
+
+void iwl_trans_pcie_dump_regs(struct iwl_trans *trans, struct pci_dev *pdev)
+{
+#define PCI_DUMP_SIZE 352
+#define PCI_MEM_DUMP_SIZE 64
+#define PCI_PARENT_DUMP_SIZE 524
+#define PREFIX_LEN 32
+
+ static bool pcie_dbg_dumped_once = 0;
+ u32 i, pos, alloc_size, *ptr, *buf;
+ char *prefix;
+
+ if (pcie_dbg_dumped_once)
+ return;
+
+ /* Should be a multiple of 4 */
+ BUILD_BUG_ON(PCI_DUMP_SIZE > 4096 || PCI_DUMP_SIZE & 0x3);
+ BUILD_BUG_ON(PCI_MEM_DUMP_SIZE > 4096 || PCI_MEM_DUMP_SIZE & 0x3);
+ BUILD_BUG_ON(PCI_PARENT_DUMP_SIZE > 4096 || PCI_PARENT_DUMP_SIZE & 0x3);
+
+ /* Alloc a max size buffer */
+ alloc_size = PCI_ERR_ROOT_ERR_SRC + 4 + PREFIX_LEN;
+ alloc_size = max_t(u32, alloc_size, PCI_DUMP_SIZE + PREFIX_LEN);
+ alloc_size = max_t(u32, alloc_size, PCI_MEM_DUMP_SIZE + PREFIX_LEN);
+ alloc_size = max_t(u32, alloc_size, PCI_PARENT_DUMP_SIZE + PREFIX_LEN);
+
+ buf = kmalloc(alloc_size, GFP_ATOMIC);
+ if (!buf)
+ return;
+ prefix = (char *)buf + alloc_size - PREFIX_LEN;
+
+ IWL_ERR(trans, "iwlwifi transaction failed, dumping registers\n");
+
+ /* Print wifi device registers */
+ sprintf(prefix, "iwlwifi %s: ", pci_name(pdev));
+ IWL_ERR(trans, "iwlwifi device config registers:\n");
+ for (i = 0, ptr = buf; i < PCI_DUMP_SIZE; i += 4, ptr++)
+ if (pci_read_config_dword(pdev, i, ptr))
+ goto err_read;
+ print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32, 4, buf, i, 0);
+
+ IWL_ERR(trans, "iwlwifi device memory mapped registers:\n");
+ for (i = 0, ptr = buf; i < PCI_MEM_DUMP_SIZE; i += 4, ptr++)
+ *ptr = iwl_read32(trans, i);
+ print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32, 4, buf, i, 0);
+
+ pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR);
+ if (pos) {
+ IWL_ERR(trans, "iwlwifi device AER capability structure:\n");
+ for (i = 0, ptr = buf; i < PCI_ERR_ROOT_COMMAND; i += 4, ptr++)
+ if (pci_read_config_dword(pdev, pos + i, ptr))
+ goto err_read;
+ print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET,
+ 32, 4, buf, i, 0);
+ }
+
+ /* Print parent device registers next */
+ if (!pdev->bus->self)
+ goto out;
+
+ pdev = pdev->bus->self;
+ sprintf(prefix, "iwlwifi %s: ", pci_name(pdev));
+
+ IWL_ERR(trans, "iwlwifi parent port (%s) config registers:\n",
+ pci_name(pdev));
+ for (i = 0, ptr = buf; i < PCI_PARENT_DUMP_SIZE; i += 4, ptr++)
+ if (pci_read_config_dword(pdev, i, ptr))
+ goto err_read;
+ print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32, 4, buf, i, 0);
+
+ /* Print root port AER registers */
+ pos = 0;
+ pdev = pcie_find_root_port(pdev);
+ if (pdev)
+ pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR);
+ if (pos) {
+ IWL_ERR(trans, "iwlwifi root port (%s) AER cap structure:\n",
+ pci_name(pdev));
+ sprintf(prefix, "iwlwifi %s: ", pci_name(pdev));
+ for (i = 0, ptr = buf; i <= PCI_ERR_ROOT_ERR_SRC; i += 4, ptr++)
+ if (pci_read_config_dword(pdev, pos + i, ptr))
+ goto err_read;
+ print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32,
+ 4, buf, i, 0);
+ }
+ goto out;
+
+err_read:
+ print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32, 4, buf, i, 0);
+ IWL_ERR(trans, "Read failed at 0x%X\n", i);
+out:
+ pcie_dbg_dumped_once = 1;
+ kfree(buf);
+}
projects / thirdparty / kernel / stable.git / commitdiff
