diff options
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-csr.h | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-fw.h | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-prph.h | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans.h | 14 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/fw-api.h | 26 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/fw.c | 76 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/ops.c | 1 |
7 files changed, 128 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-csr.h b/drivers/net/wireless/iwlwifi/iwl-csr.h index fa716618735e..543abeaffcf0 100644 --- a/drivers/net/wireless/iwlwifi/iwl-csr.h +++ b/drivers/net/wireless/iwlwifi/iwl-csr.h @@ -200,6 +200,7 @@ #define CSR_INT_BIT_FH_TX (1 << 27) /* Tx DMA FH_INT[1:0] */ #define CSR_INT_BIT_SCD (1 << 26) /* TXQ pointer advanced */ #define CSR_INT_BIT_SW_ERR (1 << 25) /* uCode error */ +#define CSR_INT_BIT_PAGING (1 << 24) /* SDIO PAGING */ #define CSR_INT_BIT_RF_KILL (1 << 7) /* HW RFKILL switch GP_CNTRL[27] toggled */ #define CSR_INT_BIT_CT_KILL (1 << 6) /* Critical temp (chip too hot) rfkill */ #define CSR_INT_BIT_SW_RX (1 << 3) /* Rx, command responses */ @@ -210,6 +211,7 @@ CSR_INT_BIT_HW_ERR | \ CSR_INT_BIT_FH_TX | \ CSR_INT_BIT_SW_ERR | \ + CSR_INT_BIT_PAGING | \ CSR_INT_BIT_RF_KILL | \ CSR_INT_BIT_SW_RX | \ CSR_INT_BIT_WAKEUP | \ diff --git a/drivers/net/wireless/iwlwifi/iwl-fw.h b/drivers/net/wireless/iwlwifi/iwl-fw.h index 0d9d6f51766e..45e732150d28 100644 --- a/drivers/net/wireless/iwlwifi/iwl-fw.h +++ b/drivers/net/wireless/iwlwifi/iwl-fw.h @@ -163,6 +163,9 @@ struct iwl_sf_region { /* maximum image size 1024KB */ #define MAX_PAGING_IMAGE_SIZE (NUM_OF_BLOCK_PER_IMAGE * PAGING_BLOCK_SIZE) +/* Virtual address signature */ +#define PAGING_ADDR_SIG 0xAA000000 + #define PAGING_CMD_IS_SECURED BIT(9) #define PAGING_CMD_IS_ENABLED BIT(8) #define PAGING_CMD_NUM_OF_PAGES_IN_LAST_GRP_POS 0 diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h index c4e7a713af0f..3ab777f79e4f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-prph.h +++ b/drivers/net/wireless/iwlwifi/iwl-prph.h @@ -392,4 +392,10 @@ enum { LMPM_CHICK_EXTENDED_ADDR_SPACE = BIT(0), }; +/* FW chicken bits */ +#define LMPM_PAGE_PASS_NOTIF 0xA03824 +enum { + LMPM_PAGE_PASS_NOTIF_POS = BIT(20), +}; + #endif /* __iwl_prph_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h index 151e3de2247f..9d8b5cb06343 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans.h @@ -668,6 +668,12 @@ enum iwl_d0i3_mode { * @dbg_conf_tlv: array of pointers to configuration TLVs for debug * @dbg_trigger_tlv: array of pointers to triggers TLVs for debug * @dbg_dest_reg_num: num of reg_ops in %dbg_dest_tlv + * @paging_req_addr: The location were the FW will upload / download the pages + * from. The address is set by the opmode + * @paging_db: Pointer to the opmode paging data base, the pointer is set by + * the opmode. + * @paging_download_buf: Buffer used for copying all of the pages before + * downloading them to the FW. The buffer is allocated in the opmode */ struct iwl_trans { const struct iwl_trans_ops *ops; @@ -705,6 +711,14 @@ struct iwl_trans { struct iwl_fw_dbg_trigger_tlv * const *dbg_trigger_tlv; u8 dbg_dest_reg_num; + /* + * Paging parameters - All of the parameters should be set by the + * opmode when paging is enabled + */ + u32 paging_req_addr; + struct iwl_fw_paging *paging_db; + void *paging_download_buf; + enum iwl_d0i3_mode d0i3_mode; bool wowlan_d0i3; diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h index 9c6b153f2e12..4af7513adda2 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h +++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h @@ -120,6 +120,9 @@ enum { ADD_STA = 0x18, REMOVE_STA = 0x19, + /* paging get item */ + FW_GET_ITEM_CMD = 0x1a, + /* TX */ TX_CMD = 0x1c, TXPATH_FLUSH = 0x1e, @@ -394,6 +397,29 @@ struct iwl_fw_paging_cmd { __le32 device_phy_addr[NUM_OF_FW_PAGING_BLOCKS]; } __packed; /* FW_PAGING_BLOCK_CMD_API_S_VER_1 */ +/* + * Fw items ID's + * + * @IWL_FW_ITEM_ID_PAGING: Address of the pages that the FW will upload + * download + */ +enum iwl_fw_item_id { + IWL_FW_ITEM_ID_PAGING = 3, +}; + +/* + * struct iwl_fw_get_item_cmd - get an item from the fw + */ +struct iwl_fw_get_item_cmd { + __le32 item_id; +} __packed; /* FW_GET_ITEM_CMD_API_S_VER_1 */ + +struct iwl_fw_get_item_resp { + __le32 item_id; + __le32 item_byte_cnt; + __le32 item_val; +} __packed; /* FW_GET_ITEM_RSP_S_VER_1 */ + /** * struct iwl_nvm_access_resp_ver2 - response to NVM_ACCESS_CMD * @offset: offset in bytes into the section diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c index aff5bbf3f141..4a0ce83315bd 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw.c +++ b/drivers/net/wireless/iwlwifi/mvm/fw.c @@ -125,6 +125,7 @@ static void iwl_free_fw_paging(struct iwl_mvm *mvm) __free_pages(mvm->fw_paging_db[i].fw_paging_block, get_order(mvm->fw_paging_db[i].fw_paging_size)); } + kfree(mvm->trans->paging_download_buf); memset(mvm->fw_paging_db, 0, sizeof(mvm->fw_paging_db)); } @@ -258,6 +259,9 @@ static int iwl_alloc_fw_paging_mem(struct iwl_mvm *mvm, return -ENOMEM; } mvm->fw_paging_db[blk_idx].fw_paging_phys = phys; + } else { + mvm->fw_paging_db[blk_idx].fw_paging_phys = PAGING_ADDR_SIG | + blk_idx << BLOCK_2_EXP_SIZE; } IWL_DEBUG_FW(mvm, @@ -294,6 +298,10 @@ static int iwl_alloc_fw_paging_mem(struct iwl_mvm *mvm, return -ENOMEM; } mvm->fw_paging_db[blk_idx].fw_paging_phys = phys; + } else { + mvm->fw_paging_db[blk_idx].fw_paging_phys = + PAGING_ADDR_SIG | + blk_idx << BLOCK_2_EXP_SIZE; } IWL_DEBUG_FW(mvm, @@ -344,6 +352,60 @@ static int iwl_send_paging_cmd(struct iwl_mvm *mvm, const struct fw_img *fw) 0, sizeof(fw_paging_cmd), &fw_paging_cmd); } +/* + * Send paging item cmd to FW in case CPU2 has paging image + */ +static int iwl_trans_get_paging_item(struct iwl_mvm *mvm) +{ + int ret; + struct iwl_fw_get_item_cmd fw_get_item_cmd = { + .item_id = cpu_to_le32(IWL_FW_ITEM_ID_PAGING), + }; + + struct iwl_fw_get_item_resp *item_resp; + struct iwl_host_cmd cmd = { + .id = iwl_cmd_id(FW_GET_ITEM_CMD, IWL_ALWAYS_LONG_GROUP, 0), + .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, + .data = { &fw_get_item_cmd, }, + }; + + cmd.len[0] = sizeof(struct iwl_fw_get_item_cmd); + + ret = iwl_mvm_send_cmd(mvm, &cmd); + if (ret) { + IWL_ERR(mvm, + "Paging: Failed to send FW_GET_ITEM_CMD cmd (err = %d)\n", + ret); + return ret; + } + + item_resp = (void *)((struct iwl_rx_packet *)cmd.resp_pkt)->data; + if (item_resp->item_id != cpu_to_le32(IWL_FW_ITEM_ID_PAGING)) { + IWL_ERR(mvm, + "Paging: got wrong item in FW_GET_ITEM_CMD resp (item_id = %u)\n", + le32_to_cpu(item_resp->item_id)); + ret = -EIO; + goto exit; + } + + mvm->trans->paging_download_buf = kzalloc(MAX_PAGING_IMAGE_SIZE, + GFP_KERNEL); + if (!mvm->trans->paging_download_buf) { + ret = -ENOMEM; + goto exit; + } + mvm->trans->paging_req_addr = le32_to_cpu(item_resp->item_val); + mvm->trans->paging_db = mvm->fw_paging_db; + IWL_DEBUG_FW(mvm, + "Paging: got paging request address (paging_req_addr 0x%08x)\n", + mvm->trans->paging_req_addr); + +exit: + iwl_free_resp(&cmd); + + return ret; +} + static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait, struct iwl_rx_packet *pkt, void *data) { @@ -517,6 +579,20 @@ static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm, * included in the IWL_UCODE_INIT image. */ if (fw->paging_mem_size) { + /* + * When dma is not enabled, the driver needs to copy / write + * the downloaded / uploaded page to / from the smem. + * This gets the location of the place were the pages are + * stored. + */ + if (!is_device_dma_capable(mvm->trans->dev)) { + ret = iwl_trans_get_paging_item(mvm); + if (ret) { + IWL_ERR(mvm, "failed to get FW paging item\n"); + return ret; + } + } + ret = iwl_save_fw_paging(mvm, fw); if (ret) { IWL_ERR(mvm, "failed to save the FW paging image\n"); diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c index 48731124afe1..5d577c13db5b 100644 --- a/drivers/net/wireless/iwlwifi/mvm/ops.c +++ b/drivers/net/wireless/iwlwifi/mvm/ops.c @@ -291,6 +291,7 @@ static const char *const iwl_mvm_cmd_strings[REPLY_MAX] = { CMD(FW_PAGING_BLOCK_CMD), CMD(ADD_STA_KEY), CMD(ADD_STA), + CMD(FW_GET_ITEM_CMD), CMD(REMOVE_STA), CMD(LQ_CMD), CMD(SCAN_OFFLOAD_CONFIG_CMD), |