From: Sara Sharon Date: Thu, 23 Jun 2016 09:04:55 +0000 (+0300) Subject: iwlwifi: centralize 64 bit HW registers write X-Git-Tag: v4.8-rc1~140^2~121^2~40^2~5 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=12a17458a2078342de874a0bdc5d7b3e4ac01289;p=linux.git iwlwifi: centralize 64 bit HW registers write Move the write_prph_64 of pcie to be transport agnostic. Add direct write as well, as it is needed for a000 HW. Signed-off-by: Sara Sharon Signed-off-by: Luca Coelho --- diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-io.h b/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-io.h index 27914eedc146..1dccae6532cf 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-io.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-devtrace-io.h @@ -1,6 +1,7 @@ /****************************************************************************** * * Copyright(c) 2009 - 2014 Intel Corporation. All rights reserved. + * Copyright(c) 2016 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -83,6 +84,23 @@ TRACE_EVENT(iwlwifi_dev_iowrite32, __get_str(dev), __entry->offs, __entry->val) ); +TRACE_EVENT(iwlwifi_dev_iowrite64, + TP_PROTO(const struct device *dev, u64 offs, u64 val), + TP_ARGS(dev, offs, val), + TP_STRUCT__entry( + DEV_ENTRY + __field(u64, offs) + __field(u64, val) + ), + TP_fast_assign( + DEV_ASSIGN; + __entry->offs = offs; + __entry->val = val; + ), + TP_printk("[%s] write io[%llu] = %llu)", + __get_str(dev), __entry->offs, __entry->val) +); + TRACE_EVENT(iwlwifi_dev_iowrite_prph32, TP_PROTO(const struct device *dev, u32 offs, u32 val), TP_ARGS(dev, offs, val), @@ -100,6 +118,23 @@ TRACE_EVENT(iwlwifi_dev_iowrite_prph32, __get_str(dev), __entry->offs, __entry->val) ); +TRACE_EVENT(iwlwifi_dev_iowrite_prph64, + TP_PROTO(const struct device *dev, u64 offs, u64 val), + TP_ARGS(dev, offs, val), + TP_STRUCT__entry( + DEV_ENTRY + __field(u64, offs) + __field(u64, val) + ), + TP_fast_assign( + DEV_ASSIGN; + __entry->offs = offs; + __entry->val = val; + ), + TP_printk("[%s] write PRPH[%llu] = %llu)", + __get_str(dev), __entry->offs, __entry->val) +); + TRACE_EVENT(iwlwifi_dev_ioread_prph32, TP_PROTO(const struct device *dev, u32 offs, u32 val), TP_ARGS(dev, offs, val), diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-io.c b/drivers/net/wireless/intel/iwlwifi/iwl-io.c index d8b430688872..92c8b5f9a9cb 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-io.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-io.c @@ -51,6 +51,14 @@ void iwl_write32(struct iwl_trans *trans, u32 ofs, u32 val) } IWL_EXPORT_SYMBOL(iwl_write32); +void iwl_write64(struct iwl_trans *trans, u64 ofs, u64 val) +{ + trace_iwlwifi_dev_iowrite64(trans->dev, ofs, val); + iwl_trans_write32(trans, ofs, val & 0xffffffff); + iwl_trans_write32(trans, ofs + 4, val >> 32); +} +IWL_EXPORT_SYMBOL(iwl_write64); + u32 iwl_read32(struct iwl_trans *trans, u32 ofs) { u32 val = iwl_trans_read32(trans, ofs); @@ -102,6 +110,17 @@ void iwl_write_direct32(struct iwl_trans *trans, u32 reg, u32 value) } IWL_EXPORT_SYMBOL(iwl_write_direct32); +void iwl_write_direct64(struct iwl_trans *trans, u64 reg, u64 value) +{ + unsigned long flags; + + if (iwl_trans_grab_nic_access(trans, &flags)) { + iwl_write64(trans, reg, value); + iwl_trans_release_nic_access(trans, &flags); + } +} +IWL_EXPORT_SYMBOL(iwl_write_direct64); + int iwl_poll_direct_bit(struct iwl_trans *trans, u32 addr, u32 mask, int timeout) { @@ -133,6 +152,14 @@ void iwl_write_prph_no_grab(struct iwl_trans *trans, u32 ofs, u32 val) } IWL_EXPORT_SYMBOL(iwl_write_prph_no_grab); +void iwl_write_prph64_no_grab(struct iwl_trans *trans, u64 ofs, u64 val) +{ + trace_iwlwifi_dev_iowrite_prph64(trans->dev, ofs, val); + iwl_write_prph_no_grab(trans, ofs, val & 0xffffffff); + iwl_write_prph_no_grab(trans, ofs + 4, val >> 32); +} +IWL_EXPORT_SYMBOL(iwl_write_prph64_no_grab); + u32 iwl_read_prph(struct iwl_trans *trans, u32 ofs) { unsigned long flags; diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-io.h b/drivers/net/wireless/intel/iwlwifi/iwl-io.h index a9bcc788cae1..5c8c0e130194 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-io.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-io.h @@ -34,6 +34,7 @@ void iwl_write8(struct iwl_trans *trans, u32 ofs, u8 val); void iwl_write32(struct iwl_trans *trans, u32 ofs, u32 val); +void iwl_write64(struct iwl_trans *trans, u64 ofs, u64 val); u32 iwl_read32(struct iwl_trans *trans, u32 ofs); static inline void iwl_set_bit(struct iwl_trans *trans, u32 reg, u32 mask) @@ -53,11 +54,13 @@ int iwl_poll_direct_bit(struct iwl_trans *trans, u32 addr, u32 mask, u32 iwl_read_direct32(struct iwl_trans *trans, u32 reg); void iwl_write_direct32(struct iwl_trans *trans, u32 reg, u32 value); +void iwl_write_direct64(struct iwl_trans *trans, u64 reg, u64 value); u32 iwl_read_prph_no_grab(struct iwl_trans *trans, u32 ofs); u32 iwl_read_prph(struct iwl_trans *trans, u32 ofs); void iwl_write_prph_no_grab(struct iwl_trans *trans, u32 ofs, u32 val); +void iwl_write_prph64_no_grab(struct iwl_trans *trans, u64 ofs, u64 val); void iwl_write_prph(struct iwl_trans *trans, u32 ofs, u32 val); int iwl_poll_prph_bit(struct iwl_trans *trans, u32 addr, u32 bits, u32 mask, int timeout); diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c index 153b3084de0b..5c36e6d00622 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c @@ -161,13 +161,6 @@ static inline __le32 iwl_pcie_dma_addr2rbd_ptr(dma_addr_t dma_addr) return cpu_to_le32((u32)(dma_addr >> 8)); } -static void iwl_pcie_write_prph_64_no_grab(struct iwl_trans *trans, u64 ofs, - u64 val) -{ - iwl_write_prph_no_grab(trans, ofs, val & 0xffffffff); - iwl_write_prph_no_grab(trans, ofs + 4, val >> 32); -} - /* * iwl_pcie_rx_stop - stops the Rx DMA */ @@ -817,17 +810,17 @@ static void iwl_pcie_rx_mq_hw_init(struct iwl_trans *trans) for (i = 0; i < trans->num_rx_queues; i++) { /* Tell device where to find RBD free table in DRAM */ - iwl_pcie_write_prph_64_no_grab(trans, - RFH_Q_FRBDCB_BA_LSB(i), - trans_pcie->rxq[i].bd_dma); + iwl_write_prph64_no_grab(trans, + RFH_Q_FRBDCB_BA_LSB(i), + trans_pcie->rxq[i].bd_dma); /* Tell device where to find RBD used table in DRAM */ - iwl_pcie_write_prph_64_no_grab(trans, - RFH_Q_URBDCB_BA_LSB(i), - trans_pcie->rxq[i].used_bd_dma); + iwl_write_prph64_no_grab(trans, + RFH_Q_URBDCB_BA_LSB(i), + trans_pcie->rxq[i].used_bd_dma); /* Tell device where in DRAM to update its Rx status */ - iwl_pcie_write_prph_64_no_grab(trans, - RFH_Q_URBD_STTS_WPTR_LSB(i), - trans_pcie->rxq[i].rb_stts_dma); + iwl_write_prph64_no_grab(trans, + RFH_Q_URBD_STTS_WPTR_LSB(i), + trans_pcie->rxq[i].rb_stts_dma); /* Reset device indice tables */ iwl_write_prph_no_grab(trans, RFH_Q_FRBDCB_WIDX(i), 0); iwl_write_prph_no_grab(trans, RFH_Q_FRBDCB_RIDX(i), 0);