From 87a32eaa3b83d4c7ceae29a4feff07518dbe31bd Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 1 Jun 2017 11:37:25 +0200
Subject: [PATCH 120/146] iwlwifi: mvm: remove version 2 of paging command
Git-commit: 4f2210ee8498faa3499a927f0a40027ff972ec3a
Patch-mainline: v4.13-rc1
References: FATE#322675

Only a000-series devices were going to use this, but actually
initialize using the context info, which includes paging, so
this code is never invoked; remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/fw-api.h |   25 +--------------
 drivers/net/wireless/intel/iwlwifi/mvm/fw.c     |   39 +++++++-----------------
 2 files changed, 15 insertions(+), 49 deletions(-)

--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw-api.h
@@ -326,7 +326,7 @@ enum iwl_legacy_cmds {
 
 	/**
 	 * @FW_PAGING_BLOCK_CMD:
-	 * &struct iwl_fw_paging_cmd or &struct iwl_fw_paging_cmd_v1
+	 * &struct iwl_fw_paging_cmd
 	 */
 	FW_PAGING_BLOCK_CMD = 0x4f,
 
@@ -1003,25 +1003,6 @@ struct iwl_nvm_access_cmd {
 #define NUM_OF_FW_PAGING_BLOCKS	33 /* 32 for data and 1 block for CSS */
 
 /**
- * struct iwl_fw_paging_cmd_v1 - paging layout
- *
- * (FW_PAGING_BLOCK_CMD = 0x4f)
- *
- * Send to FW the paging layout in the driver.
- *
- * @flags: various flags for the command
- * @block_size: the block size in powers of 2
- * @block_num: number of blocks specified in the command.
- * @device_phy_addr: virtual addresses from device side
- */
-struct iwl_fw_paging_cmd_v1 {
-	__le32 flags;
-	__le32 block_size;
-	__le32 block_num;
-	__le32 device_phy_addr[NUM_OF_FW_PAGING_BLOCKS];
-} __packed; /* FW_PAGING_BLOCK_CMD_API_S_VER_1 */
-
-/**
  * struct iwl_fw_paging_cmd - paging layout
  *
  * (FW_PAGING_BLOCK_CMD = 0x4f)
@@ -1037,8 +1018,8 @@ struct iwl_fw_paging_cmd {
 	__le32 flags;
 	__le32 block_size;
 	__le32 block_num;
-	__le64 device_phy_addr[NUM_OF_FW_PAGING_BLOCKS];
-} __packed; /* FW_PAGING_BLOCK_CMD_API_S_VER_2 */
+	__le32 device_phy_addr[NUM_OF_FW_PAGING_BLOCKS];
+} __packed; /* FW_PAGING_BLOCK_CMD_API_S_VER_1 */
 
 /*
  * Fw items ID's
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -384,44 +384,29 @@ static int iwl_save_fw_paging(struct iwl
 /* send paging cmd to FW in case CPU2 has paging image */
 static int iwl_send_paging_cmd(struct iwl_mvm *mvm, const struct fw_img *fw)
 {
-	union {
-		struct iwl_fw_paging_cmd v2;
-		struct iwl_fw_paging_cmd_v1 v1;
-	} paging_cmd = {
-		.v2.flags =
-			cpu_to_le32(PAGING_CMD_IS_SECURED |
-				    PAGING_CMD_IS_ENABLED |
-				    (mvm->num_of_pages_in_last_blk <<
-				    PAGING_CMD_NUM_OF_PAGES_IN_LAST_GRP_POS)),
-		.v2.block_size = cpu_to_le32(BLOCK_2_EXP_SIZE),
-		.v2.block_num = cpu_to_le32(mvm->num_of_paging_blk),
+	struct iwl_fw_paging_cmd paging_cmd = {
+		.flags = cpu_to_le32(PAGING_CMD_IS_SECURED |
+				     PAGING_CMD_IS_ENABLED |
+				     (mvm->num_of_pages_in_last_blk <<
+				      PAGING_CMD_NUM_OF_PAGES_IN_LAST_GRP_POS)),
+		.block_size = cpu_to_le32(BLOCK_2_EXP_SIZE),
+		.block_num = cpu_to_le32(mvm->num_of_paging_blk),
 	};
-	int blk_idx, size = sizeof(paging_cmd.v2);
-
-	/* A bit hard coded - but this is the old API and will be deprecated */
-	if (!iwl_mvm_has_new_tx_api(mvm))
-		size = sizeof(paging_cmd.v1);
+	int blk_idx;
 
 	/* loop for for all paging blocks + CSS block */
 	for (blk_idx = 0; blk_idx < mvm->num_of_paging_blk + 1; blk_idx++) {
 		dma_addr_t addr = mvm->fw_paging_db[blk_idx].fw_paging_phys;
+		__le32 phy_addr;
 
 		addr = addr >> PAGE_2_EXP_SIZE;
-
-		if (iwl_mvm_has_new_tx_api(mvm)) {
-			__le64 phy_addr = cpu_to_le64(addr);
-
-			paging_cmd.v2.device_phy_addr[blk_idx] = phy_addr;
-		} else {
-			__le32 phy_addr = cpu_to_le32(addr);
-
-			paging_cmd.v1.device_phy_addr[blk_idx] = phy_addr;
-		}
+		phy_addr = cpu_to_le32(addr);
+		paging_cmd.device_phy_addr[blk_idx] = phy_addr;
 	}
 
 	return iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(FW_PAGING_BLOCK_CMD,
 						    IWL_ALWAYS_LONG_GROUP, 0),
-				    0, size, &paging_cmd);
+				    0, sizeof(paging_cmd), &paging_cmd);
 }
 
 /*