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path: root/drivers/net/wireless
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-rw-r--r--drivers/net/wireless/iwlwifi/pcie/rx.c28
-rw-r--r--drivers/net/wireless/iwlwifi/pcie/trans.c23
-rw-r--r--drivers/net/wireless/iwlwifi/pcie/tx.c10
3 files changed, 26 insertions, 35 deletions
diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c
index 2e11512ca353..7ab510e4be41 100644
--- a/drivers/net/wireless/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/rx.c
@@ -379,13 +379,12 @@ static void iwl_pcie_rxq_free_rbs(struct iwl_trans *trans)
379static void iwl_pcie_rx_replenish(struct iwl_trans *trans) 379static void iwl_pcie_rx_replenish(struct iwl_trans *trans)
380{ 380{
381 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); 381 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
382 unsigned long flags;
383 382
384 iwl_pcie_rxq_alloc_rbs(trans, GFP_KERNEL); 383 iwl_pcie_rxq_alloc_rbs(trans, GFP_KERNEL);
385 384
386 spin_lock_irqsave(&trans_pcie->irq_lock, flags); 385 spin_lock(&trans_pcie->irq_lock);
387 iwl_pcie_rxq_restock(trans); 386 iwl_pcie_rxq_restock(trans);
388 spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); 387 spin_unlock(&trans_pcie->irq_lock);
389} 388}
390 389
391static void iwl_pcie_rx_replenish_now(struct iwl_trans *trans) 390static void iwl_pcie_rx_replenish_now(struct iwl_trans *trans)
@@ -541,10 +540,10 @@ int iwl_pcie_rx_init(struct iwl_trans *trans)
541 540
542 iwl_pcie_rx_hw_init(trans, rxq); 541 iwl_pcie_rx_hw_init(trans, rxq);
543 542
544 spin_lock_irqsave(&trans_pcie->irq_lock, flags); 543 spin_lock(&trans_pcie->irq_lock);
545 rxq->need_update = 1; 544 rxq->need_update = 1;
546 iwl_pcie_rxq_inc_wr_ptr(trans, rxq); 545 iwl_pcie_rxq_inc_wr_ptr(trans, rxq);
547 spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); 546 spin_unlock(&trans_pcie->irq_lock);
548 547
549 return 0; 548 return 0;
550} 549}
@@ -895,12 +894,11 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id)
895 struct isr_statistics *isr_stats = &trans_pcie->isr_stats; 894 struct isr_statistics *isr_stats = &trans_pcie->isr_stats;
896 u32 inta = 0; 895 u32 inta = 0;
897 u32 handled = 0; 896 u32 handled = 0;
898 unsigned long flags;
899 u32 i; 897 u32 i;
900 898
901 lock_map_acquire(&trans->sync_cmd_lockdep_map); 899 lock_map_acquire(&trans->sync_cmd_lockdep_map);
902 900
903 spin_lock_irqsave(&trans_pcie->irq_lock, flags); 901 spin_lock(&trans_pcie->irq_lock);
904 902
905 /* dram interrupt table not set yet, 903 /* dram interrupt table not set yet,
906 * use legacy interrupt. 904 * use legacy interrupt.
@@ -937,7 +935,7 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id)
937 */ 935 */
938 if (test_bit(STATUS_INT_ENABLED, &trans->status)) 936 if (test_bit(STATUS_INT_ENABLED, &trans->status))
939 iwl_enable_interrupts(trans); 937 iwl_enable_interrupts(trans);
940 spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); 938 spin_unlock(&trans_pcie->irq_lock);
941 lock_map_release(&trans->sync_cmd_lockdep_map); 939 lock_map_release(&trans->sync_cmd_lockdep_map);
942 return IRQ_NONE; 940 return IRQ_NONE;
943 } 941 }
@@ -948,7 +946,7 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id)
948 * already raised an interrupt. 946 * already raised an interrupt.
949 */ 947 */
950 IWL_WARN(trans, "HARDWARE GONE?? INTA == 0x%08x\n", inta); 948 IWL_WARN(trans, "HARDWARE GONE?? INTA == 0x%08x\n", inta);
951 spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); 949 spin_unlock(&trans_pcie->irq_lock);
952 goto out; 950 goto out;
953 } 951 }
954 952
@@ -969,7 +967,7 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id)
969 IWL_DEBUG_ISR(trans, "inta 0x%08x, enabled 0x%08x\n", 967 IWL_DEBUG_ISR(trans, "inta 0x%08x, enabled 0x%08x\n",
970 inta, iwl_read32(trans, CSR_INT_MASK)); 968 inta, iwl_read32(trans, CSR_INT_MASK));
971 969
972 spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); 970 spin_unlock(&trans_pcie->irq_lock);
973 971
974 /* Now service all interrupt bits discovered above. */ 972 /* Now service all interrupt bits discovered above. */
975 if (inta & CSR_INT_BIT_HW_ERR) { 973 if (inta & CSR_INT_BIT_HW_ERR) {
@@ -1194,12 +1192,11 @@ void iwl_pcie_reset_ict(struct iwl_trans *trans)
1194{ 1192{
1195 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); 1193 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
1196 u32 val; 1194 u32 val;
1197 unsigned long flags;
1198 1195
1199 if (!trans_pcie->ict_tbl) 1196 if (!trans_pcie->ict_tbl)
1200 return; 1197 return;
1201 1198
1202 spin_lock_irqsave(&trans_pcie->irq_lock, flags); 1199 spin_lock(&trans_pcie->irq_lock);
1203 iwl_disable_interrupts(trans); 1200 iwl_disable_interrupts(trans);
1204 1201
1205 memset(trans_pcie->ict_tbl, 0, ICT_SIZE); 1202 memset(trans_pcie->ict_tbl, 0, ICT_SIZE);
@@ -1216,18 +1213,17 @@ void iwl_pcie_reset_ict(struct iwl_trans *trans)
1216 trans_pcie->ict_index = 0; 1213 trans_pcie->ict_index = 0;
1217 iwl_write32(trans, CSR_INT, trans_pcie->inta_mask); 1214 iwl_write32(trans, CSR_INT, trans_pcie->inta_mask);
1218 iwl_enable_interrupts(trans); 1215 iwl_enable_interrupts(trans);
1219 spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); 1216 spin_unlock(&trans_pcie->irq_lock);
1220} 1217}
1221 1218
1222/* Device is going down disable ict interrupt usage */ 1219/* Device is going down disable ict interrupt usage */
1223void iwl_pcie_disable_ict(struct iwl_trans *trans) 1220void iwl_pcie_disable_ict(struct iwl_trans *trans)
1224{ 1221{
1225 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); 1222 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
1226 unsigned long flags;
1227 1223
1228 spin_lock_irqsave(&trans_pcie->irq_lock, flags); 1224 spin_lock(&trans_pcie->irq_lock);
1229 trans_pcie->use_ict = false; 1225 trans_pcie->use_ict = false;
1230 spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); 1226 spin_unlock(&trans_pcie->irq_lock);
1231} 1227}
1232 1228
1233irqreturn_t iwl_pcie_isr(int irq, void *data) 1229irqreturn_t iwl_pcie_isr(int irq, void *data)
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index 721050735ee6..9a07cf3062ea 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -271,13 +271,12 @@ static void iwl_pcie_apm_stop(struct iwl_trans *trans)
271static int iwl_pcie_nic_init(struct iwl_trans *trans) 271static int iwl_pcie_nic_init(struct iwl_trans *trans)
272{ 272{
273 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); 273 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
274 unsigned long flags;
275 274
276 /* nic_init */ 275 /* nic_init */
277 spin_lock_irqsave(&trans_pcie->irq_lock, flags); 276 spin_lock(&trans_pcie->irq_lock);
278 iwl_pcie_apm_init(trans); 277 iwl_pcie_apm_init(trans);
279 278
280 spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); 279 spin_unlock(&trans_pcie->irq_lock);
281 280
282 iwl_pcie_set_pwr(trans, false); 281 iwl_pcie_set_pwr(trans, false);
283 282
@@ -635,13 +634,12 @@ static void iwl_trans_pcie_fw_alive(struct iwl_trans *trans, u32 scd_addr)
635static void iwl_trans_pcie_stop_device(struct iwl_trans *trans) 634static void iwl_trans_pcie_stop_device(struct iwl_trans *trans)
636{ 635{
637 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); 636 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
638 unsigned long flags;
639 bool hw_rfkill; 637 bool hw_rfkill;
640 638
641 /* tell the device to stop sending interrupts */ 639 /* tell the device to stop sending interrupts */
642 spin_lock_irqsave(&trans_pcie->irq_lock, flags); 640 spin_lock(&trans_pcie->irq_lock);
643 iwl_disable_interrupts(trans); 641 iwl_disable_interrupts(trans);
644 spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); 642 spin_unlock(&trans_pcie->irq_lock);
645 643
646 /* device going down, Stop using ICT table */ 644 /* device going down, Stop using ICT table */
647 iwl_pcie_disable_ict(trans); 645 iwl_pcie_disable_ict(trans);
@@ -673,9 +671,9 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans)
673 /* Upon stop, the APM issues an interrupt if HW RF kill is set. 671 /* Upon stop, the APM issues an interrupt if HW RF kill is set.
674 * Clean again the interrupt here 672 * Clean again the interrupt here
675 */ 673 */
676 spin_lock_irqsave(&trans_pcie->irq_lock, flags); 674 spin_lock(&trans_pcie->irq_lock);
677 iwl_disable_interrupts(trans); 675 iwl_disable_interrupts(trans);
678 spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); 676 spin_unlock(&trans_pcie->irq_lock);
679 677
680 /* stop and reset the on-board processor */ 678 /* stop and reset the on-board processor */
681 iwl_write32(trans, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); 679 iwl_write32(trans, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
@@ -821,18 +819,17 @@ static int iwl_trans_pcie_start_hw(struct iwl_trans *trans)
821static void iwl_trans_pcie_op_mode_leave(struct iwl_trans *trans) 819static void iwl_trans_pcie_op_mode_leave(struct iwl_trans *trans)
822{ 820{
823 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); 821 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
824 unsigned long flags;
825 822
826 /* disable interrupts - don't enable HW RF kill interrupt */ 823 /* disable interrupts - don't enable HW RF kill interrupt */
827 spin_lock_irqsave(&trans_pcie->irq_lock, flags); 824 spin_lock(&trans_pcie->irq_lock);
828 iwl_disable_interrupts(trans); 825 iwl_disable_interrupts(trans);
829 spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); 826 spin_unlock(&trans_pcie->irq_lock);
830 827
831 iwl_pcie_apm_stop(trans); 828 iwl_pcie_apm_stop(trans);
832 829
833 spin_lock_irqsave(&trans_pcie->irq_lock, flags); 830 spin_lock(&trans_pcie->irq_lock);
834 iwl_disable_interrupts(trans); 831 iwl_disable_interrupts(trans);
835 spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); 832 spin_unlock(&trans_pcie->irq_lock);
836 833
837 iwl_pcie_disable_ict(trans); 834 iwl_pcie_disable_ict(trans);
838} 835}
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index 8df24787c141..b49a185355e4 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -737,10 +737,9 @@ int iwl_pcie_tx_stop(struct iwl_trans *trans)
737{ 737{
738 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); 738 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
739 int ch, txq_id, ret; 739 int ch, txq_id, ret;
740 unsigned long flags;
741 740
742 /* Turn off all Tx DMA fifos */ 741 /* Turn off all Tx DMA fifos */
743 spin_lock_irqsave(&trans_pcie->irq_lock, flags); 742 spin_lock(&trans_pcie->irq_lock);
744 743
745 iwl_pcie_txq_set_sched(trans, 0); 744 iwl_pcie_txq_set_sched(trans, 0);
746 745
@@ -757,7 +756,7 @@ int iwl_pcie_tx_stop(struct iwl_trans *trans)
757 iwl_read_direct32(trans, 756 iwl_read_direct32(trans,
758 FH_TSSR_TX_STATUS_REG)); 757 FH_TSSR_TX_STATUS_REG));
759 } 758 }
760 spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); 759 spin_unlock(&trans_pcie->irq_lock);
761 760
762 if (!trans_pcie->txq) { 761 if (!trans_pcie->txq) {
763 IWL_WARN(trans, 762 IWL_WARN(trans,
@@ -865,7 +864,6 @@ int iwl_pcie_tx_init(struct iwl_trans *trans)
865 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); 864 struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
866 int ret; 865 int ret;
867 int txq_id, slots_num; 866 int txq_id, slots_num;
868 unsigned long flags;
869 bool alloc = false; 867 bool alloc = false;
870 868
871 if (!trans_pcie->txq) { 869 if (!trans_pcie->txq) {
@@ -875,7 +873,7 @@ int iwl_pcie_tx_init(struct iwl_trans *trans)
875 alloc = true; 873 alloc = true;
876 } 874 }
877 875
878 spin_lock_irqsave(&trans_pcie->irq_lock, flags); 876 spin_lock(&trans_pcie->irq_lock);
879 877
880 /* Turn off all Tx DMA fifos */ 878 /* Turn off all Tx DMA fifos */
881 iwl_write_prph(trans, SCD_TXFACT, 0); 879 iwl_write_prph(trans, SCD_TXFACT, 0);
@@ -884,7 +882,7 @@ int iwl_pcie_tx_init(struct iwl_trans *trans)
884 iwl_write_direct32(trans, FH_KW_MEM_ADDR_REG, 882 iwl_write_direct32(trans, FH_KW_MEM_ADDR_REG,
885 trans_pcie->kw.dma >> 4); 883 trans_pcie->kw.dma >> 4);
886 884
887 spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); 885 spin_unlock(&trans_pcie->irq_lock);
888 886
889 /* Alloc and init all Tx queues, including the command queue (#4/#9) */ 887 /* Alloc and init all Tx queues, including the command queue (#4/#9) */
890 for (txq_id = 0; txq_id < trans->cfg->base_params->num_of_queues; 888 for (txq_id = 0; txq_id < trans->cfg->base_params->num_of_queues;