Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into mips-for-linux-next

Conflicts:
    include/linux/ssb/ssb_driver_gige.h

Also resolves a logical merge conflict in drivers/net/ethernet/broadcom/-
bgmac.c due to change of an API.

1 files changed, 145 insertions, 19 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index b76532e238c1..8c7bec6b9a0b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -5,7 +5,7 @@
  *
  * GPL LICENSE SUMMARY
  *
- * Copyright(c) 2007 - 2012 Intel Corporation. All rights reserved.
+ * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved.
  *
  * 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
@@ -30,7 +30,7 @@
  *
  * BSD LICENSE
  *
- * Copyright(c) 2005 - 2012 Intel Corporation. All rights reserved.
+ * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -65,6 +65,7 @@
 
 #include <linux/ieee80211.h>
 #include <linux/mm.h> /* for page_address */
+#include <linux/lockdep.h>
 
 #include "iwl-debug.h"
 #include "iwl-config.h"
@@ -193,11 +194,11 @@ struct iwl_rx_packet {
  * @CMD_ON_DEMAND: This command is sent by the test mode pipe.
  */
 enum CMD_MODE {
-	CMD_SYNC = 0,
-	CMD_ASYNC = BIT(0),
-	CMD_WANT_SKB = BIT(1),
-	CMD_WANT_HCMD = BIT(2),
-	CMD_ON_DEMAND = BIT(3),
+	CMD_SYNC		= 0,
+	CMD_ASYNC		= BIT(0),
+	CMD_WANT_SKB		= BIT(1),
+	CMD_WANT_HCMD		= BIT(2),
+	CMD_ON_DEMAND		= BIT(3),
 };
 
 #define DEF_CMD_PAYLOAD_SIZE 320
@@ -274,6 +275,7 @@ struct iwl_rx_cmd_buffer {
 	struct page *_page;
 	int _offset;
 	bool _page_stolen;
+	u32 _rx_page_order;
 	unsigned int truesize;
 };
 
@@ -294,6 +296,11 @@ static inline struct page *rxb_steal_page(struct iwl_rx_cmd_buffer *r)
 	return r->_page;
 }
 
+static inline void iwl_free_rxb(struct iwl_rx_cmd_buffer *r)
+{
+	__free_pages(r->_page, r->_rx_page_order);
+}
+
 #define MAX_NO_RECLAIM_CMDS	6
 
 #define IWL_MASK(lo, hi) ((1 << (hi)) | ((1 << (hi)) - (1 << (lo))))
@@ -308,6 +315,16 @@ static inline struct page *rxb_steal_page(struct iwl_rx_cmd_buffer *r)
 #define IWL_FRAME_LIMIT	64
 
 /**
+ * enum iwl_wowlan_status - WoWLAN image/device status
+ * @IWL_D3_STATUS_ALIVE: firmware is still running after resume
+ * @IWL_D3_STATUS_RESET: device was reset while suspended
+ */
+enum iwl_d3_status {
+	IWL_D3_STATUS_ALIVE,
+	IWL_D3_STATUS_RESET,
+};
+
+/**
  * struct iwl_trans_config - transport configuration
  *
  * @op_mode: pointer to the upper layer.
@@ -321,6 +338,8 @@ static inline struct page *rxb_steal_page(struct iwl_rx_cmd_buffer *r)
  * @n_no_reclaim_cmds: # of commands in list
  * @rx_buf_size_8k: 8 kB RX buffer size needed for A-MSDUs,
  *	if unset 4k will be the RX buffer size
+ * @bc_table_dword: set to true if the BC table expects the byte count to be
+ *	in DWORD (as opposed to bytes)
  * @queue_watchdog_timeout: time (in ms) after which queues
  *	are considered stuck and will trigger device restart
  * @command_names: array of command names, must be 256 entries
@@ -335,6 +354,7 @@ struct iwl_trans_config {
 	int n_no_reclaim_cmds;
 
 	bool rx_buf_size_8k;
+	bool bc_table_dword;
 	unsigned int queue_watchdog_timeout;
 	const char **command_names;
 };
@@ -360,9 +380,12 @@ struct iwl_trans;
  *	May sleep
  * @stop_device:stops the whole device (embedded CPU put to reset)
  *	May sleep
- * @wowlan_suspend: put the device into the correct mode for WoWLAN during
+ * @d3_suspend: put the device into the correct mode for WoWLAN during
  *	suspend. This is optional, if not implemented WoWLAN will not be
  *	supported. This callback may sleep.
+ * @d3_resume: resume the device after WoWLAN, enabling the opmode to
+ *	talk to the WoWLAN image to get its status. This is optional, if not
+ *	implemented WoWLAN will not be supported. This callback may sleep.
  * @send_cmd:send a host command. Must return -ERFKILL if RFkill is asserted.
  *	If RFkill is asserted in the middle of a SYNC host command, it must
  *	return -ERFKILL straight away.
@@ -387,20 +410,31 @@ struct iwl_trans;
  * @read32: read a u32 register at offset ofs from the BAR
  * @read_prph: read a DWORD from a periphery register
  * @write_prph: write a DWORD to a periphery register
+ * @read_mem: read device's SRAM in DWORD
+ * @write_mem: write device's SRAM in DWORD. If %buf is %NULL, then the memory
+ *	will be zeroed.
  * @configure: configure parameters required by the transport layer from
  *	the op_mode. May be called several times before start_fw, can't be
  *	called after that.
  * @set_pmi: set the power pmi state
+ * @grab_nic_access: wake the NIC to be able to access non-HBUS regs.
+ *	Sleeping is not allowed between grab_nic_access and
+ *	release_nic_access.
+ * @release_nic_access: let the NIC go to sleep. The "flags" parameter
+ *	must be the same one that was sent before to the grab_nic_access.
+ * @set_bits_mask - set SRAM register according to value and mask.
  */
 struct iwl_trans_ops {
 
 	int (*start_hw)(struct iwl_trans *iwl_trans);
 	void (*stop_hw)(struct iwl_trans *iwl_trans, bool op_mode_leaving);
-	int (*start_fw)(struct iwl_trans *trans, const struct fw_img *fw);
+	int (*start_fw)(struct iwl_trans *trans, const struct fw_img *fw,
+			bool run_in_rfkill);
 	void (*fw_alive)(struct iwl_trans *trans, u32 scd_addr);
 	void (*stop_device)(struct iwl_trans *trans);
 
-	void (*wowlan_suspend)(struct iwl_trans *trans);
+	void (*d3_suspend)(struct iwl_trans *trans);
+	int (*d3_resume)(struct iwl_trans *trans, enum iwl_d3_status *status);
 
 	int (*send_cmd)(struct iwl_trans *trans, struct iwl_host_cmd *cmd);
 
@@ -424,9 +458,19 @@ struct iwl_trans_ops {
 	u32 (*read32)(struct iwl_trans *trans, u32 ofs);
 	u32 (*read_prph)(struct iwl_trans *trans, u32 ofs);
 	void (*write_prph)(struct iwl_trans *trans, u32 ofs, u32 val);
+	int (*read_mem)(struct iwl_trans *trans, u32 addr,
+			void *buf, int dwords);
+	int (*write_mem)(struct iwl_trans *trans, u32 addr,
+			 void *buf, int dwords);
 	void (*configure)(struct iwl_trans *trans,
 			  const struct iwl_trans_config *trans_cfg);
 	void (*set_pmi)(struct iwl_trans *trans, bool state);
+	bool (*grab_nic_access)(struct iwl_trans *trans, bool silent,
+				unsigned long *flags);
+	void (*release_nic_access)(struct iwl_trans *trans,
+				   unsigned long *flags);
+	void (*set_bits_mask)(struct iwl_trans *trans, u32 reg, u32 mask,
+			      u32 value);
 };
 
 /**
@@ -446,7 +490,6 @@ enum iwl_trans_state {
  * @ops - pointer to iwl_trans_ops
  * @op_mode - pointer to the op_mode
  * @cfg - pointer to the configuration
- * @reg_lock - protect hw register access
  * @dev - pointer to struct device * that represents the device
  * @hw_id: a u32 with the ID of the device / subdevice.
  *	Set during transport allocation.
@@ -467,7 +510,6 @@ struct iwl_trans {
 	struct iwl_op_mode *op_mode;
 	const struct iwl_cfg *cfg;
 	enum iwl_trans_state state;
-	spinlock_t reg_lock;
 
 	struct device *dev;
 	u32 hw_rev;
@@ -485,6 +527,10 @@ struct iwl_trans {
 
 	struct dentry *dbgfs_dir;
 
+#ifdef CONFIG_LOCKDEP
+	struct lockdep_map sync_cmd_lockdep_map;
+#endif
+
 	/* pointer to trans specific struct */
 	/*Ensure that this pointer will always be aligned to sizeof pointer */
 	char trans_specific[0] __aligned(sizeof(void *));
@@ -528,13 +574,14 @@ static inline void iwl_trans_fw_alive(struct iwl_trans *trans, u32 scd_addr)
 }
 
 static inline int iwl_trans_start_fw(struct iwl_trans *trans,
-				     const struct fw_img *fw)
+				     const struct fw_img *fw,
+				     bool run_in_rfkill)
 {
 	might_sleep();
 
 	WARN_ON_ONCE(!trans->rx_mpdu_cmd);
 
-	return trans->ops->start_fw(trans, fw);
+	return trans->ops->start_fw(trans, fw, run_in_rfkill);
 }
 
 static inline void iwl_trans_stop_device(struct iwl_trans *trans)
@@ -546,19 +593,36 @@ static inline void iwl_trans_stop_device(struct iwl_trans *trans)
 	trans->state = IWL_TRANS_NO_FW;
 }
 
-static inline void iwl_trans_wowlan_suspend(struct iwl_trans *trans)
+static inline void iwl_trans_d3_suspend(struct iwl_trans *trans)
 {
 	might_sleep();
-	trans->ops->wowlan_suspend(trans);
+	trans->ops->d3_suspend(trans);
+}
+
+static inline int iwl_trans_d3_resume(struct iwl_trans *trans,
+				      enum iwl_d3_status *status)
+{
+	might_sleep();
+	return trans->ops->d3_resume(trans, status);
 }
 
 static inline int iwl_trans_send_cmd(struct iwl_trans *trans,
-				struct iwl_host_cmd *cmd)
+				     struct iwl_host_cmd *cmd)
 {
+	int ret;
+
 	WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE,
 		  "%s bad state = %d", __func__, trans->state);
 
-	return trans->ops->send_cmd(trans, cmd);
+	if (!(cmd->flags & CMD_ASYNC))
+		lock_map_acquire_read(&trans->sync_cmd_lockdep_map);
+
+	ret = trans->ops->send_cmd(trans, cmd);
+
+	if (!(cmd->flags & CMD_ASYNC))
+		lock_map_release(&trans->sync_cmd_lockdep_map);
+
+	return ret;
 }
 
 static inline struct iwl_device_cmd *
@@ -636,7 +700,7 @@ static inline int iwl_trans_wait_tx_queue_empty(struct iwl_trans *trans)
 }
 
 static inline int iwl_trans_dbgfs_register(struct iwl_trans *trans,
-					    struct dentry *dir)
+					   struct dentry *dir)
 {
 	return trans->ops->dbgfs_register(trans, dir);
 }
@@ -679,15 +743,77 @@ static inline void iwl_trans_write_prph(struct iwl_trans *trans, u32 ofs,
 	return trans->ops->write_prph(trans, ofs, val);
 }
 
+static inline int iwl_trans_read_mem(struct iwl_trans *trans, u32 addr,
+				     void *buf, int dwords)
+{
+	return trans->ops->read_mem(trans, addr, buf, dwords);
+}
+
+#define iwl_trans_read_mem_bytes(trans, addr, buf, bufsize)		      \
+	do {								      \
+		if (__builtin_constant_p(bufsize))			      \
+			BUILD_BUG_ON((bufsize) % sizeof(u32));		      \
+		iwl_trans_read_mem(trans, addr, buf, (bufsize) / sizeof(u32));\
+	} while (0)
+
+static inline u32 iwl_trans_read_mem32(struct iwl_trans *trans, u32 addr)
+{
+	u32 value;
+
+	if (WARN_ON(iwl_trans_read_mem(trans, addr, &value, 1)))
+		return 0xa5a5a5a5;
+
+	return value;
+}
+
+static inline int iwl_trans_write_mem(struct iwl_trans *trans, u32 addr,
+				      void *buf, int dwords)
+{
+	return trans->ops->write_mem(trans, addr, buf, dwords);
+}
+
+static inline u32 iwl_trans_write_mem32(struct iwl_trans *trans, u32 addr,
+					u32 val)
+{
+	return iwl_trans_write_mem(trans, addr, &val, 1);
+}
+
 static inline void iwl_trans_set_pmi(struct iwl_trans *trans, bool state)
 {
 	trans->ops->set_pmi(trans, state);
 }
 
+static inline void
+iwl_trans_set_bits_mask(struct iwl_trans *trans, u32 reg, u32 mask, u32 value)
+{
+	trans->ops->set_bits_mask(trans, reg, mask, value);
+}
+
+#define iwl_trans_grab_nic_access(trans, silent, flags)	\
+	__cond_lock(nic_access,				\
+		    likely((trans)->ops->grab_nic_access(trans, silent, flags)))
+
+static inline void __releases(nic_access)
+iwl_trans_release_nic_access(struct iwl_trans *trans, unsigned long *flags)
+{
+	trans->ops->release_nic_access(trans, flags);
+	__release(nic_access);
+}
+
 /*****************************************************
 * driver (transport) register/unregister functions
 ******************************************************/
 int __must_check iwl_pci_register_driver(void);
 void iwl_pci_unregister_driver(void);
 
+static inline void trans_lockdep_init(struct iwl_trans *trans)
+{
+#ifdef CONFIG_LOCKDEP
+	static struct lock_class_key __key;
+
+	lockdep_init_map(&trans->sync_cmd_lockdep_map, "sync_cmd_lockdep_map",
+			 &__key, 0);
+#endif
+}
+
 #endif /* __iwl_trans_h__ */