diff options
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/Makefile | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/core.c | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/core.h | 5 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/coredump.c | 52 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/coredump.h | 79 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/hif.h | 7 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/mhi.c | 5 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/mhi.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/pci.c | 188 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/qmi.h | 1 |
10 files changed, 341 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath11k/Makefile b/drivers/net/wireless/ath/ath11k/Makefile index 43d2d8ddcdc0..d9092414b362 100644 --- a/drivers/net/wireless/ath/ath11k/Makefile +++ b/drivers/net/wireless/ath/ath11k/Makefile @@ -27,6 +27,7 @@ ath11k-$(CONFIG_ATH11K_TRACING) += trace.o ath11k-$(CONFIG_THERMAL) += thermal.o ath11k-$(CONFIG_ATH11K_SPECTRAL) += spectral.o ath11k-$(CONFIG_PM) += wow.o +ath11k-$(CONFIG_DEV_COREDUMP) += coredump.o obj-$(CONFIG_ATH11K_AHB) += ath11k_ahb.o ath11k_ahb-y += ahb.o diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c index 12dd37c2e904..65bba0ae69a9 100644 --- a/drivers/net/wireless/ath/ath11k/core.c +++ b/drivers/net/wireless/ath/ath11k/core.c @@ -2258,6 +2258,7 @@ static void ath11k_core_reset(struct work_struct *work) reinit_completion(&ab->recovery_start); atomic_set(&ab->recovery_start_count, 0); + ath11k_coredump_collect(ab); ath11k_core_pre_reconfigure_recovery(ab); reinit_completion(&ab->reconfigure_complete); @@ -2393,6 +2394,7 @@ struct ath11k_base *ath11k_core_alloc(struct device *dev, size_t priv_size, INIT_WORK(&ab->restart_work, ath11k_core_restart); INIT_WORK(&ab->update_11d_work, ath11k_update_11d); INIT_WORK(&ab->reset_work, ath11k_core_reset); + INIT_WORK(&ab->dump_work, ath11k_coredump_upload); timer_setup(&ab->rx_replenish_retry, ath11k_ce_rx_replenish_retry, 0); init_completion(&ab->htc_suspend); init_completion(&ab->wow.wakeup_completed); diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h index 9842a4d65c7b..1a3d0de4afde 100644 --- a/drivers/net/wireless/ath/ath11k/core.h +++ b/drivers/net/wireless/ath/ath11k/core.h @@ -32,6 +32,7 @@ #include "spectral.h" #include "wow.h" #include "fw.h" +#include "coredump.h" #define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK) @@ -904,6 +905,10 @@ struct ath11k_base { /* HW channel counters frequency value in hertz common to all MACs */ u32 cc_freq_hz; + struct ath11k_dump_file_data *dump_data; + size_t ath11k_coredump_len; + struct work_struct dump_work; + struct ath11k_htc htc; struct ath11k_dp dp; diff --git a/drivers/net/wireless/ath/ath11k/coredump.c b/drivers/net/wireless/ath/ath11k/coredump.c new file mode 100644 index 000000000000..b8bad358cebe --- /dev/null +++ b/drivers/net/wireless/ath/ath11k/coredump.c @@ -0,0 +1,52 @@ +// SPDX-License-Identifier: BSD-3-Clause-Clear +/* + * Copyright (c) 2020 The Linux Foundation. All rights reserved. + * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ +#include <linux/devcoredump.h> +#include "hif.h" +#include "coredump.h" +#include "debug.h" + +enum +ath11k_fw_crash_dump_type ath11k_coredump_get_dump_type(int type) +{ + enum ath11k_fw_crash_dump_type dump_type; + + switch (type) { + case HOST_DDR_REGION_TYPE: + dump_type = FW_CRASH_DUMP_REMOTE_MEM_DATA; + break; + case M3_DUMP_REGION_TYPE: + dump_type = FW_CRASH_DUMP_M3_DUMP; + break; + case PAGEABLE_MEM_REGION_TYPE: + dump_type = FW_CRASH_DUMP_PAGEABLE_DATA; + break; + case BDF_MEM_REGION_TYPE: + case CALDB_MEM_REGION_TYPE: + dump_type = FW_CRASH_DUMP_NONE; + break; + default: + dump_type = FW_CRASH_DUMP_TYPE_MAX; + break; + } + + return dump_type; +} +EXPORT_SYMBOL(ath11k_coredump_get_dump_type); + +void ath11k_coredump_upload(struct work_struct *work) +{ + struct ath11k_base *ab = container_of(work, struct ath11k_base, dump_work); + + ath11k_info(ab, "Uploading coredump\n"); + /* dev_coredumpv() takes ownership of the buffer */ + dev_coredumpv(ab->dev, ab->dump_data, ab->ath11k_coredump_len, GFP_KERNEL); + ab->dump_data = NULL; +} + +void ath11k_coredump_collect(struct ath11k_base *ab) +{ + ath11k_hif_coredump_download(ab); +} diff --git a/drivers/net/wireless/ath/ath11k/coredump.h b/drivers/net/wireless/ath/ath11k/coredump.h new file mode 100644 index 000000000000..3960d9385261 --- /dev/null +++ b/drivers/net/wireless/ath/ath11k/coredump.h @@ -0,0 +1,79 @@ +/* SPDX-License-Identifier: BSD-3-Clause-Clear */ +/* + * Copyright (c) 2020 The Linux Foundation. All rights reserved. + * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ +#ifndef _ATH11K_COREDUMP_H_ +#define _ATH11K_COREDUMP_H_ + +#define ATH11K_FW_CRASH_DUMP_V2 2 + +enum ath11k_fw_crash_dump_type { + FW_CRASH_DUMP_PAGING_DATA, + FW_CRASH_DUMP_RDDM_DATA, + FW_CRASH_DUMP_REMOTE_MEM_DATA, + FW_CRASH_DUMP_PAGEABLE_DATA, + FW_CRASH_DUMP_M3_DUMP, + FW_CRASH_DUMP_NONE, + + /* keep last */ + FW_CRASH_DUMP_TYPE_MAX, +}; + +#define COREDUMP_TLV_HDR_SIZE 8 + +struct ath11k_tlv_dump_data { + /* see ath11k_fw_crash_dump_type above */ + __le32 type; + + /* in bytes */ + __le32 tlv_len; + + /* pad to 32-bit boundaries as needed */ + u8 tlv_data[]; +} __packed; + +struct ath11k_dump_file_data { + /* "ATH11K-FW-DUMP" */ + char df_magic[16]; + /* total dump len in bytes */ + __le32 len; + /* file dump version */ + __le32 version; + /* pci device id */ + __le32 chip_id; + /* qrtr instance id */ + __le32 qrtr_id; + /* pci domain id */ + __le32 bus_id; + guid_t guid; + /* time-of-day stamp */ + __le64 tv_sec; + /* time-of-day stamp, nano-seconds */ + __le64 tv_nsec; + /* room for growth w/out changing binary format */ + u8 unused[128]; + u8 data[]; +} __packed; + +#ifdef CONFIG_DEV_COREDUMP +enum ath11k_fw_crash_dump_type ath11k_coredump_get_dump_type(int type); +void ath11k_coredump_upload(struct work_struct *work); +void ath11k_coredump_collect(struct ath11k_base *ab); +#else +static inline enum +ath11k_fw_crash_dump_type ath11k_coredump_get_dump_type(int type) +{ + return FW_CRASH_DUMP_TYPE_MAX; +} + +static inline void ath11k_coredump_upload(struct work_struct *work) +{ +} + +static inline void ath11k_coredump_collect(struct ath11k_base *ab) +{ +} +#endif + +#endif diff --git a/drivers/net/wireless/ath/ath11k/hif.h b/drivers/net/wireless/ath/ath11k/hif.h index 674ff772b181..770c39ff99b4 100644 --- a/drivers/net/wireless/ath/ath11k/hif.h +++ b/drivers/net/wireless/ath/ath11k/hif.h @@ -31,6 +31,7 @@ struct ath11k_hif_ops { void (*ce_irq_enable)(struct ath11k_base *ab); void (*ce_irq_disable)(struct ath11k_base *ab); void (*get_ce_msi_idx)(struct ath11k_base *ab, u32 ce_id, u32 *msi_idx); + void (*coredump_download)(struct ath11k_base *ab); }; static inline void ath11k_hif_ce_irq_enable(struct ath11k_base *ab) @@ -146,4 +147,10 @@ static inline void ath11k_get_ce_msi_idx(struct ath11k_base *ab, u32 ce_id, *msi_data_idx = ce_id; } +static inline void ath11k_hif_coredump_download(struct ath11k_base *ab) +{ + if (ab->hif.ops->coredump_download) + ab->hif.ops->coredump_download(ab); +} + #endif /* _HIF_H_ */ diff --git a/drivers/net/wireless/ath/ath11k/mhi.c b/drivers/net/wireless/ath/ath11k/mhi.c index 6e45f464a429..fc77eac83e95 100644 --- a/drivers/net/wireless/ath/ath11k/mhi.c +++ b/drivers/net/wireless/ath/ath11k/mhi.c @@ -491,3 +491,8 @@ int ath11k_mhi_resume(struct ath11k_pci *ab_pci) return 0; } + +void ath11k_mhi_coredump(struct mhi_controller *mhi_ctrl, bool in_panic) +{ + mhi_download_rddm_image(mhi_ctrl, in_panic); +} diff --git a/drivers/net/wireless/ath/ath11k/mhi.h b/drivers/net/wireless/ath/ath11k/mhi.h index a682aad52fc5..651470091bd5 100644 --- a/drivers/net/wireless/ath/ath11k/mhi.h +++ b/drivers/net/wireless/ath/ath11k/mhi.h @@ -26,5 +26,6 @@ void ath11k_mhi_clear_vector(struct ath11k_base *ab); int ath11k_mhi_suspend(struct ath11k_pci *ar_pci); int ath11k_mhi_resume(struct ath11k_pci *ar_pci); +void ath11k_mhi_coredump(struct mhi_controller *mhi_ctrl, bool in_panic); #endif diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c index f1121e331719..6565ac1917b7 100644 --- a/drivers/net/wireless/ath/ath11k/pci.c +++ b/drivers/net/wireless/ath/ath11k/pci.c @@ -8,6 +8,8 @@ #include <linux/msi.h> #include <linux/pci.h> #include <linux/of.h> +#include <linux/time.h> +#include <linux/vmalloc.h> #include "pci.h" #include "core.h" @@ -610,6 +612,187 @@ static void ath11k_pci_aspm_restore(struct ath11k_pci *ab_pci) PCI_EXP_LNKCTL_ASPMC); } +#ifdef CONFIG_DEV_COREDUMP +static int ath11k_pci_coredump_calculate_size(struct ath11k_base *ab, u32 *dump_seg_sz) +{ + struct ath11k_pci *ab_pci = ath11k_pci_priv(ab); + struct mhi_controller *mhi_ctrl = ab_pci->mhi_ctrl; + struct image_info *rddm_img, *fw_img; + struct ath11k_tlv_dump_data *dump_tlv; + enum ath11k_fw_crash_dump_type mem_type; + u32 len = 0, rddm_tlv_sz = 0, paging_tlv_sz = 0; + struct ath11k_dump_file_data *file_data; + int i; + + rddm_img = mhi_ctrl->rddm_image; + if (!rddm_img) { + ath11k_err(ab, "No RDDM dump found\n"); + return 0; + } + + fw_img = mhi_ctrl->fbc_image; + + for (i = 0; i < fw_img->entries ; i++) { + if (!fw_img->mhi_buf[i].buf) + continue; + + paging_tlv_sz += fw_img->mhi_buf[i].len; + } + dump_seg_sz[FW_CRASH_DUMP_PAGING_DATA] = paging_tlv_sz; + + for (i = 0; i < rddm_img->entries; i++) { + if (!rddm_img->mhi_buf[i].buf) + continue; + + rddm_tlv_sz += rddm_img->mhi_buf[i].len; + } + dump_seg_sz[FW_CRASH_DUMP_RDDM_DATA] = rddm_tlv_sz; + + for (i = 0; i < ab->qmi.mem_seg_count; i++) { + mem_type = ath11k_coredump_get_dump_type(ab->qmi.target_mem[i].type); + + if (mem_type == FW_CRASH_DUMP_NONE) + continue; + + if (mem_type == FW_CRASH_DUMP_TYPE_MAX) { + ath11k_dbg(ab, ATH11K_DBG_PCI, + "target mem region type %d not supported", + ab->qmi.target_mem[i].type); + continue; + } + + if (!ab->qmi.target_mem[i].anyaddr) + continue; + + dump_seg_sz[mem_type] += ab->qmi.target_mem[i].size; + } + + for (i = 0; i < FW_CRASH_DUMP_TYPE_MAX; i++) { + if (!dump_seg_sz[i]) + continue; + + len += sizeof(*dump_tlv) + dump_seg_sz[i]; + } + + if (len) + len += sizeof(*file_data); + + return len; +} + +static void ath11k_pci_coredump_download(struct ath11k_base *ab) +{ + struct ath11k_pci *ab_pci = ath11k_pci_priv(ab); + struct mhi_controller *mhi_ctrl = ab_pci->mhi_ctrl; + struct image_info *rddm_img, *fw_img; + struct timespec64 timestamp; + int i, len, mem_idx; + enum ath11k_fw_crash_dump_type mem_type; + struct ath11k_dump_file_data *file_data; + struct ath11k_tlv_dump_data *dump_tlv; + size_t hdr_len = sizeof(*file_data); + void *buf; + u32 dump_seg_sz[FW_CRASH_DUMP_TYPE_MAX] = { 0 }; + + ath11k_mhi_coredump(mhi_ctrl, false); + + len = ath11k_pci_coredump_calculate_size(ab, dump_seg_sz); + if (!len) { + ath11k_warn(ab, "No crash dump data found for devcoredump"); + return; + } + + rddm_img = mhi_ctrl->rddm_image; + fw_img = mhi_ctrl->fbc_image; + + /* dev_coredumpv() requires vmalloc data */ + buf = vzalloc(len); + if (!buf) + return; + + ab->dump_data = buf; + ab->ath11k_coredump_len = len; + file_data = ab->dump_data; + strscpy(file_data->df_magic, "ATH11K-FW-DUMP", sizeof(file_data->df_magic)); + file_data->len = cpu_to_le32(len); + file_data->version = cpu_to_le32(ATH11K_FW_CRASH_DUMP_V2); + file_data->chip_id = cpu_to_le32(ab_pci->dev_id); + file_data->qrtr_id = cpu_to_le32(ab_pci->ab->qmi.service_ins_id); + file_data->bus_id = cpu_to_le32(pci_domain_nr(ab_pci->pdev->bus)); + guid_gen(&file_data->guid); + ktime_get_real_ts64(×tamp); + file_data->tv_sec = cpu_to_le64(timestamp.tv_sec); + file_data->tv_nsec = cpu_to_le64(timestamp.tv_nsec); + buf += hdr_len; + dump_tlv = buf; + dump_tlv->type = cpu_to_le32(FW_CRASH_DUMP_PAGING_DATA); + dump_tlv->tlv_len = cpu_to_le32(dump_seg_sz[FW_CRASH_DUMP_PAGING_DATA]); + buf += COREDUMP_TLV_HDR_SIZE; + + /* append all segments together as they are all part of a single contiguous + * block of memory + */ + for (i = 0; i < fw_img->entries ; i++) { + if (!fw_img->mhi_buf[i].buf) + continue; + + memcpy_fromio(buf, (void const __iomem *)fw_img->mhi_buf[i].buf, + fw_img->mhi_buf[i].len); + buf += fw_img->mhi_buf[i].len; + } + + dump_tlv = buf; + dump_tlv->type = cpu_to_le32(FW_CRASH_DUMP_RDDM_DATA); + dump_tlv->tlv_len = cpu_to_le32(dump_seg_sz[FW_CRASH_DUMP_RDDM_DATA]); + buf += COREDUMP_TLV_HDR_SIZE; + + /* append all segments together as they are all part of a single contiguous + * block of memory + */ + for (i = 0; i < rddm_img->entries; i++) { + if (!rddm_img->mhi_buf[i].buf) + continue; + + memcpy_fromio(buf, (void const __iomem *)rddm_img->mhi_buf[i].buf, + rddm_img->mhi_buf[i].len); + buf += rddm_img->mhi_buf[i].len; + } + + mem_idx = FW_CRASH_DUMP_REMOTE_MEM_DATA; + for (; mem_idx < FW_CRASH_DUMP_TYPE_MAX; mem_idx++) { + if (mem_idx == FW_CRASH_DUMP_NONE) + continue; + + for (i = 0; i < ab->qmi.mem_seg_count; i++) { + mem_type = ath11k_coredump_get_dump_type + (ab->qmi.target_mem[i].type); + + if (mem_type != mem_idx) + continue; + + if (!ab->qmi.target_mem[i].anyaddr) { + ath11k_dbg(ab, ATH11K_DBG_PCI, + "Skipping mem region type %d", + ab->qmi.target_mem[i].type); + continue; + } + + dump_tlv = buf; + dump_tlv->type = cpu_to_le32(mem_idx); + dump_tlv->tlv_len = cpu_to_le32(dump_seg_sz[mem_idx]); + buf += COREDUMP_TLV_HDR_SIZE; + + memcpy_fromio(buf, ab->qmi.target_mem[i].iaddr, + ab->qmi.target_mem[i].size); + + buf += ab->qmi.target_mem[i].size; + } + } + + queue_work(ab->workqueue, &ab->dump_work); +} +#endif + static int ath11k_pci_power_up(struct ath11k_base *ab) { struct ath11k_pci *ab_pci = ath11k_pci_priv(ab); @@ -713,6 +896,9 @@ static const struct ath11k_hif_ops ath11k_pci_hif_ops = { .ce_irq_enable = ath11k_pci_hif_ce_irq_enable, .ce_irq_disable = ath11k_pci_hif_ce_irq_disable, .get_ce_msi_idx = ath11k_pcic_get_ce_msi_idx, +#ifdef CONFIG_DEV_COREDUMP + .coredump_download = ath11k_pci_coredump_download, +#endif }; static void ath11k_pci_read_hw_version(struct ath11k_base *ab, u32 *major, u32 *minor) @@ -981,6 +1167,8 @@ static void ath11k_pci_remove(struct pci_dev *pdev) set_bit(ATH11K_FLAG_UNREGISTERING, &ab->dev_flags); + cancel_work_sync(&ab->reset_work); + cancel_work_sync(&ab->dump_work); ath11k_core_deinit(ab); qmi_fail: diff --git a/drivers/net/wireless/ath/ath11k/qmi.h b/drivers/net/wireless/ath/ath11k/qmi.h index fdf9b5f8c19f..7968ab122b65 100644 --- a/drivers/net/wireless/ath/ath11k/qmi.h +++ b/drivers/net/wireless/ath/ath11k/qmi.h @@ -157,6 +157,7 @@ struct ath11k_qmi { #define BDF_MEM_REGION_TYPE 0x2 #define M3_DUMP_REGION_TYPE 0x3 #define CALDB_MEM_REGION_TYPE 0x4 +#define PAGEABLE_MEM_REGION_TYPE 0x9 struct qmi_wlanfw_host_cap_req_msg_v01 { u8 num_clients_valid; |