From patchwork Thu Jan 22 20:33:06 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Emmanuel Grumbach X-Patchwork-Id: 5688031 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id D3C429F358 for ; Thu, 22 Jan 2015 20:34:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0436C20251 for ; Thu, 22 Jan 2015 20:34:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ECF512024F for ; Thu, 22 Jan 2015 20:34:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754533AbbAVUeS (ORCPT ); Thu, 22 Jan 2015 15:34:18 -0500 Received: from mga09.intel.com ([134.134.136.24]:42471 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754445AbbAVUeE (ORCPT ); Thu, 22 Jan 2015 15:34:04 -0500 Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga102.jf.intel.com with ESMTP; 22 Jan 2015 12:31:02 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,862,1389772800"; d="scan'208";a="443878182" Received: from ygoren-mobl1.ger.corp.intel.com (HELO egrumbacBox.ger.corp.intel.com) ([10.255.200.254]) by FMSMGA003.fm.intel.com with ESMTP; 22 Jan 2015 12:20:37 -0800 From: Emmanuel Grumbach To: linux-wireless@vger.kernel.org Cc: Ido Yariv , Ido Yariv , Emmanuel Grumbach Subject: [PATCH 15/38] iwlwifi: mvm: add support for dumping a secondary SRAM Date: Thu, 22 Jan 2015 22:33:06 +0200 Message-Id: <1421958809-3371-15-git-send-email-emmanuel.grumbach@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1421958313.6424.2.camel@egrumbacBox> References: <1421958313.6424.2.camel@egrumbacBox> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Ido Yariv Some HW modules have two SRAMs. In such cases add the secondary SRAM to the list of dumped segments. Signed-off-by: Ido Yariv Reviewed-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/iwl-8000.c | 4 ++++ drivers/net/wireless/iwlwifi/iwl-config.h | 4 ++++ drivers/net/wireless/iwlwifi/mvm/mac80211.c | 28 ++++++++++++++++++++++++---- 3 files changed, 32 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-8000.c b/drivers/net/wireless/iwlwifi/iwl-8000.c index 9eca533..d6c05eab 100644 --- a/drivers/net/wireless/iwlwifi/iwl-8000.c +++ b/drivers/net/wireless/iwlwifi/iwl-8000.c @@ -84,6 +84,8 @@ /* Memory offsets and lengths */ #define IWL8260_DCCM_OFFSET 0x800000 #define IWL8260_DCCM_LEN 0x18000 +#define IWL8260_DCCM2_OFFSET 0x880000 +#define IWL8260_DCCM2_LEN 0x8000 #define IWL8260_SMEM_OFFSET 0x400000 #define IWL8260_SMEM_LEN 0x68000 @@ -134,6 +136,8 @@ static const struct iwl_ht_params iwl8000_ht_params = { .non_shared_ant = ANT_A, \ .dccm_offset = IWL8260_DCCM_OFFSET, \ .dccm_len = IWL8260_DCCM_LEN, \ + .dccm2_offset = IWL8260_DCCM2_OFFSET, \ + .dccm2_len = IWL8260_DCCM2_LEN, \ .smem_offset = IWL8260_SMEM_OFFSET, \ .smem_len = IWL8260_SMEM_LEN diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h index 0eaafd8..445bff6 100644 --- a/drivers/net/wireless/iwlwifi/iwl-config.h +++ b/drivers/net/wireless/iwlwifi/iwl-config.h @@ -263,6 +263,8 @@ struct iwl_pwr_tx_backoff { * station can receive in VHT * @dccm_offset: offset from which DCCM begins * @dccm_len: length of DCCM (including runtime stack CCM) + * @dccm2_offset: offset from which the second DCCM begins + * @dccm2_len: length of the second DCCM * @smem_offset: offset from which the SMEM begins * @smem_len: the length of SMEM * @@ -310,6 +312,8 @@ struct iwl_cfg { unsigned int max_vht_ampdu_exponent; const u32 dccm_offset; const u32 dccm_len; + const u32 dccm2_offset; + const u32 dccm2_len; const u32 smem_offset; const u32 smem_len; }; diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c index c4552b5..b5f401d 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c @@ -778,14 +778,19 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) unsigned long flags; int reg_val; u32 smem_len = mvm->cfg->smem_len; + u32 sram2_len = mvm->cfg->dccm2_len; lockdep_assert_held(&mvm->mutex); /* W/A for 8000 HW family A-step */ - if (mvm->cfg->smem_len && - mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 && - CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_A_STEP) - smem_len = 0x38000; + if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 && + CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_A_STEP) { + if (smem_len) + smem_len = 0x38000; + + if (sram2_len) + sram2_len = 0x10000; + } fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL); if (!fw_error_dump) @@ -820,6 +825,10 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) if (smem_len) file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len; + /* Make room for the secondary SRAM, if it exists */ + if (sram2_len) + file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len; + dump_file = vzalloc(file_len); if (!dump_file) { kfree(fw_error_dump); @@ -884,6 +893,17 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) dump_mem->data, smem_len); } + if (sram2_len) { + dump_data = iwl_fw_error_next_data(dump_data); + dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); + dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem)); + dump_mem = (void *)dump_data->data; + dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM); + dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset); + iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset, + dump_mem->data, sram2_len); + } + fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans); fw_error_dump->op_mode_len = file_len; if (fw_error_dump->trans_ptr)