diff options
Diffstat (limited to 'fw/pnvm.c')
| -rw-r--r-- | fw/pnvm.c | 49 |
1 files changed, 34 insertions, 15 deletions
diff --git a/fw/pnvm.c b/fw/pnvm.c index 650e4bde9c17..1195e708caa9 100644 --- a/fw/pnvm.c +++ b/fw/pnvm.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright(c) 2020-2023 Intel Corporation + * Copyright(c) 2020-2024 Intel Corporation */ #include "iwl-drv.h" @@ -12,6 +12,8 @@ #include "fw/api/alive.h" #include "fw/uefi.h" +#define IWL_PNVM_REDUCED_CAP_BIT BIT(25) + struct iwl_pnvm_section { __le32 offset; const u8 data[]; @@ -173,6 +175,7 @@ static int iwl_pnvm_parse(struct iwl_trans *trans, const u8 *data, while (len >= sizeof(*tlv)) { u32 tlv_len, tlv_type; + u32 rf_type; len -= sizeof(*tlv); tlv = (const void *)data; @@ -201,6 +204,16 @@ static int iwl_pnvm_parse(struct iwl_trans *trans, const u8 *data, data += sizeof(*tlv) + ALIGN(tlv_len, 4); len -= ALIGN(tlv_len, 4); + trans->reduced_cap_sku = false; + rf_type = CSR_HW_RFID_TYPE(trans->hw_rf_id); + if ((trans->sku_id[0] & IWL_PNVM_REDUCED_CAP_BIT) && + rf_type == IWL_CFG_RF_TYPE_FM) + trans->reduced_cap_sku = true; + + IWL_DEBUG_FW(trans, + "Reduced SKU device %d\n", + trans->reduced_cap_sku); + if (trans->sku_id[0] == le32_to_cpu(sku_id->data[0]) && trans->sku_id[1] == le32_to_cpu(sku_id->data[1]) && trans->sku_id[2] == le32_to_cpu(sku_id->data[2])) { @@ -239,7 +252,7 @@ static int iwl_pnvm_get_from_fs(struct iwl_trans *trans, u8 **data, size_t *len) } new_len = pnvm->size; - *data = kmemdup(pnvm->data, pnvm->size, GFP_KERNEL); + *data = kvmemdup(pnvm->data, pnvm->size, GFP_KERNEL); release_firmware(pnvm); if (!*data) @@ -255,21 +268,27 @@ static u8 *iwl_get_pnvm_image(struct iwl_trans *trans_p, size_t *len) struct pnvm_sku_package *package; u8 *image = NULL; - /* First attempt to get the PNVM from BIOS */ - package = iwl_uefi_get_pnvm(trans_p, len); - if (!IS_ERR_OR_NULL(package)) { - if (*len >= sizeof(*package)) { - /* we need only the data */ - *len -= sizeof(*package); - image = kmemdup(package->data, *len, GFP_KERNEL); + /* Get PNVM from BIOS for non-Intel SKU */ + if (trans_p->sku_id[2]) { + package = iwl_uefi_get_pnvm(trans_p, len); + if (!IS_ERR_OR_NULL(package)) { + if (*len >= sizeof(*package)) { + /* we need only the data */ + *len -= sizeof(*package); + image = kvmemdup(package->data, + *len, GFP_KERNEL); + } + /* + * free package regardless of whether kmemdup + * succeeded + */ + kfree(package); + if (image) + return image; } - /* free package regardless of whether kmemdup succeeded */ - kfree(package); - if (image) - return image; } - /* If it's not available, try from the filesystem */ + /* If it's not available, or for Intel SKU, try from the filesystem */ if (iwl_pnvm_get_from_fs(trans_p, &image, len)) return NULL; return image; @@ -314,7 +333,7 @@ static void iwl_pnvm_load_pnvm_to_trans(struct iwl_trans *trans, set: iwl_trans_set_pnvm(trans, capa); free: - kfree(data); + kvfree(data); kfree(pnvm_data); } |