Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

15 files changed, 61 insertions, 34 deletions

diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c
index 2abce965c7b..a0fe6e3fce6 100644
--- a/drivers/net/ethernet/ibm/emac/core.c
+++ b/drivers/net/ethernet/ibm/emac/core.c
@@ -1,5 +1,5 @@
 /*
- * drivers/net/ibm_newemac/core.c
+ * drivers/net/ethernet/ibm/emac/core.c
  *
  * Driver for PowerPC 4xx on-chip ethernet controller.
  *
@@ -434,6 +434,11 @@ static inline u32 emac_iff2rmr(struct net_device *ndev)
 	else if (!netdev_mc_empty(ndev))
 		r |= EMAC_RMR_MAE;
 
+	if (emac_has_feature(dev, EMAC_APM821XX_REQ_JUMBO_FRAME_SIZE)) {
+		r &= ~EMAC4_RMR_MJS_MASK;
+		r |= EMAC4_RMR_MJS(ndev->mtu);
+	}
+
 	return r;
 }
 
@@ -965,6 +970,7 @@ static int emac_resize_rx_ring(struct emac_instance *dev, int new_mtu)
 	int rx_sync_size = emac_rx_sync_size(new_mtu);
 	int rx_skb_size = emac_rx_skb_size(new_mtu);
 	int i, ret = 0;
+	int mr1_jumbo_bit_change = 0;
 
 	mutex_lock(&dev->link_lock);
 	emac_netif_stop(dev);
@@ -1013,7 +1019,15 @@ static int emac_resize_rx_ring(struct emac_instance *dev, int new_mtu)
 	}
  skip:
 	/* Check if we need to change "Jumbo" bit in MR1 */
-	if ((new_mtu > ETH_DATA_LEN) ^ (dev->ndev->mtu > ETH_DATA_LEN)) {
+	if (emac_has_feature(dev, EMAC_APM821XX_REQ_JUMBO_FRAME_SIZE)) {
+		mr1_jumbo_bit_change = (new_mtu > ETH_DATA_LEN) ||
+				(dev->ndev->mtu > ETH_DATA_LEN);
+	} else {
+		mr1_jumbo_bit_change = (new_mtu > ETH_DATA_LEN) ^
+				(dev->ndev->mtu > ETH_DATA_LEN);
+	}
+
+	if (mr1_jumbo_bit_change) {
 		/* This is to prevent starting RX channel in emac_rx_enable() */
 		set_bit(MAL_COMMAC_RX_STOPPED, &dev->commac.flags);
 
@@ -2471,6 +2485,7 @@ static int __devinit emac_init_phy(struct emac_instance *dev)
 
 	/* Disable any PHY features not supported by the platform */
 	dev->phy.def->features &= ~dev->phy_feat_exc;
+	dev->phy.features &= ~dev->phy_feat_exc;
 
 	/* Setup initial link parameters */
 	if (dev->phy.features & SUPPORTED_Autoneg) {
@@ -2568,6 +2583,11 @@ static int __devinit emac_init_config(struct emac_instance *dev)
 		if (of_device_is_compatible(np, "ibm,emac-405ex") ||
 		    of_device_is_compatible(np, "ibm,emac-405exr"))
 			dev->features |= EMAC_FTR_440EP_PHY_CLK_FIX;
+		if (of_device_is_compatible(np, "ibm,emac-apm821xx")) {
+			dev->features |= (EMAC_APM821XX_REQ_JUMBO_FRAME_SIZE |
+					  EMAC_FTR_APM821XX_NO_HALF_DUPLEX |
+					  EMAC_FTR_460EX_PHY_CLK_FIX);
+		}
 	} else if (of_device_is_compatible(np, "ibm,emac4")) {
 		dev->features |= EMAC_FTR_EMAC4;
 		if (of_device_is_compatible(np, "ibm,emac-440gx"))
@@ -2706,11 +2726,9 @@ static int __devinit emac_probe(struct platform_device *ofdev)
 	/* Allocate our net_device structure */
 	err = -ENOMEM;
 	ndev = alloc_etherdev(sizeof(struct emac_instance));
-	if (!ndev) {
-		printk(KERN_ERR "%s: could not allocate ethernet device!\n",
-		       np->full_name);
+	if (!ndev)
 		goto err_gone;
-	}
+
 	dev = netdev_priv(ndev);
 	dev->ndev = ndev;
 	dev->ofdev = ofdev;
@@ -2818,6 +2836,13 @@ static int __devinit emac_probe(struct platform_device *ofdev)
 	dev->stop_timeout = STOP_TIMEOUT_100;
 	INIT_DELAYED_WORK(&dev->link_work, emac_link_timer);
 
+	/* Some SoCs like APM821xx does not support Half Duplex mode. */
+	if (emac_has_feature(dev, EMAC_FTR_APM821XX_NO_HALF_DUPLEX)) {
+		dev->phy_feat_exc = (SUPPORTED_1000baseT_Half |
+				     SUPPORTED_100baseT_Half |
+				     SUPPORTED_10baseT_Half);
+	}
+
 	/* Find PHY if any */
 	err = emac_init_phy(dev);
 	if (err != 0)
diff --git a/drivers/net/ethernet/ibm/emac/core.h b/drivers/net/ethernet/ibm/emac/core.h
index fa3ec57935f..70074792bde 100644
--- a/drivers/net/ethernet/ibm/emac/core.h
+++ b/drivers/net/ethernet/ibm/emac/core.h
@@ -1,5 +1,5 @@
 /*
- * drivers/net/ibm_newemac/core.h
+ * drivers/net/ethernet/ibm/emac/core.h
  *
  * Driver for PowerPC 4xx on-chip ethernet controller.
  *
@@ -325,7 +325,14 @@ struct emac_instance {
  * Set if we need phy clock workaround for 460ex or 460gt
  */
 #define EMAC_FTR_460EX_PHY_CLK_FIX	0x00000400
-
+/*
+ * APM821xx requires Jumbo frame size set explicitly
+ */
+#define EMAC_APM821XX_REQ_JUMBO_FRAME_SIZE	0x00000800
+/*
+ * APM821xx does not support Half Duplex mode
+ */
+#define EMAC_FTR_APM821XX_NO_HALF_DUPLEX	0x00001000
 
 /* Right now, we don't quite handle the always/possible masks on the
  * most optimal way as we don't have a way to say something like
@@ -353,7 +360,9 @@ enum {
 	    EMAC_FTR_NO_FLOW_CONTROL_40x |
 #endif
 	EMAC_FTR_460EX_PHY_CLK_FIX |
-	EMAC_FTR_440EP_PHY_CLK_FIX,
+	EMAC_FTR_440EP_PHY_CLK_FIX |
+	EMAC_APM821XX_REQ_JUMBO_FRAME_SIZE |
+	EMAC_FTR_APM821XX_NO_HALF_DUPLEX,
 };
 
 static inline int emac_has_feature(struct emac_instance *dev,
diff --git a/drivers/net/ethernet/ibm/emac/debug.c b/drivers/net/ethernet/ibm/emac/debug.c
index 8c6c1e2a875..b16b4828b64 100644
--- a/drivers/net/ethernet/ibm/emac/debug.c
+++ b/drivers/net/ethernet/ibm/emac/debug.c
@@ -1,5 +1,5 @@
 /*
- * drivers/net/ibm_newemac/debug.c
+ * drivers/net/ethernet/ibm/emac/debug.c
  *
  * Driver for PowerPC 4xx on-chip ethernet controller, debug print routines.
  *
diff --git a/drivers/net/ethernet/ibm/emac/debug.h b/drivers/net/ethernet/ibm/emac/debug.h
index 90477fe69d0..59a92d5870b 100644
--- a/drivers/net/ethernet/ibm/emac/debug.h
+++ b/drivers/net/ethernet/ibm/emac/debug.h
@@ -1,5 +1,5 @@
 /*
- * drivers/net/ibm_newemac/debug.h
+ * drivers/net/ethernet/ibm/emac/debug.h
  *
  * Driver for PowerPC 4xx on-chip ethernet controller, debug print routines.
  *
diff --git a/drivers/net/ethernet/ibm/emac/emac.h b/drivers/net/ethernet/ibm/emac/emac.h
index 1568278d759..5afcc27ceeb 100644
--- a/drivers/net/ethernet/ibm/emac/emac.h
+++ b/drivers/net/ethernet/ibm/emac/emac.h
@@ -1,5 +1,5 @@
 /*
- * drivers/net/ibm_newemac/emac.h
+ * drivers/net/ethernet/ibm/emac/emac.h
  *
  * Register definitions for PowerPC 4xx on-chip ethernet contoller
  *
@@ -212,6 +212,8 @@ struct emac_regs {
 #define EMAC4_RMR_RFAF_64_1024		0x00000006
 #define EMAC4_RMR_RFAF_128_2048		0x00000007
 #define EMAC4_RMR_BASE			EMAC4_RMR_RFAF_128_2048
+#define EMAC4_RMR_MJS_MASK              0x0001fff8
+#define EMAC4_RMR_MJS(s)                (((s) << 3) & EMAC4_RMR_MJS_MASK)
 
 /* EMACx_ISR & EMACx_ISER */
 #define EMAC4_ISR_TXPE			0x20000000
diff --git a/drivers/net/ethernet/ibm/emac/mal.c b/drivers/net/ethernet/ibm/emac/mal.c
index f3c50b97ec6..479e43e2f1e 100644
--- a/drivers/net/ethernet/ibm/emac/mal.c
+++ b/drivers/net/ethernet/ibm/emac/mal.c
@@ -1,5 +1,5 @@
 /*
- * drivers/net/ibm_newemac/mal.c
+ * drivers/net/ethernet/ibm/emac/mal.c
  *
  * Memory Access Layer (MAL) support
  *
diff --git a/drivers/net/ethernet/ibm/emac/mal.h b/drivers/net/ethernet/ibm/emac/mal.h
index d06f985bda3..e431a32e3d6 100644
--- a/drivers/net/ethernet/ibm/emac/mal.h
+++ b/drivers/net/ethernet/ibm/emac/mal.h
@@ -1,5 +1,5 @@
 /*
- * drivers/net/ibm_newemac/mal.h
+ * drivers/net/ethernet/ibm/emac/mal.h
  *
  * Memory Access Layer (MAL) support
  *
diff --git a/drivers/net/ethernet/ibm/emac/phy.c b/drivers/net/ethernet/ibm/emac/phy.c
index ab4e5969fe6..d3b9d103353 100644
--- a/drivers/net/ethernet/ibm/emac/phy.c
+++ b/drivers/net/ethernet/ibm/emac/phy.c
@@ -1,5 +1,5 @@
 /*
- * drivers/net/ibm_newemac/phy.c
+ * drivers/net/ethernet/ibm/emac/phy.c
  *
  * Driver for PowerPC 4xx on-chip ethernet controller, PHY support.
  * Borrowed from sungem_phy.c, though I only kept the generic MII
diff --git a/drivers/net/ethernet/ibm/emac/phy.h b/drivers/net/ethernet/ibm/emac/phy.h
index 5d2bf4cbe50..d7e41ec3746 100644
--- a/drivers/net/ethernet/ibm/emac/phy.h
+++ b/drivers/net/ethernet/ibm/emac/phy.h
@@ -1,5 +1,5 @@
 /*
- * drivers/net/ibm_newemac/phy.h
+ * drivers/net/ethernet/ibm/emac/phy.h
  *
  * Driver for PowerPC 4xx on-chip ethernet controller, PHY support
  *
diff --git a/drivers/net/ethernet/ibm/emac/rgmii.c b/drivers/net/ethernet/ibm/emac/rgmii.c
index 4fa53f3def6..d3123282e18 100644
--- a/drivers/net/ethernet/ibm/emac/rgmii.c
+++ b/drivers/net/ethernet/ibm/emac/rgmii.c
@@ -1,5 +1,5 @@
 /*
- * drivers/net/ibm_newemac/rgmii.c
+ * drivers/net/ethernet/ibm/emac/rgmii.c
  *
  * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support.
  *
@@ -237,11 +237,8 @@ static int __devinit rgmii_probe(struct platform_device *ofdev)
 
 	rc = -ENOMEM;
 	dev = kzalloc(sizeof(struct rgmii_instance), GFP_KERNEL);
-	if (dev == NULL) {
-		printk(KERN_ERR "%s: could not allocate RGMII device!\n",
-		       np->full_name);
+	if (dev == NULL)
 		goto err_gone;
-	}
 
 	mutex_init(&dev->lock);
 	dev->ofdev = ofdev;
diff --git a/drivers/net/ethernet/ibm/emac/rgmii.h b/drivers/net/ethernet/ibm/emac/rgmii.h
index 9296b6c5f92..668bceeff4a 100644
--- a/drivers/net/ethernet/ibm/emac/rgmii.h
+++ b/drivers/net/ethernet/ibm/emac/rgmii.h
@@ -1,5 +1,5 @@
 /*
- * drivers/net/ibm_newemac/rgmii.h
+ * drivers/net/ethernet/ibm/emac/rgmii.h
  *
  * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support.
  *
diff --git a/drivers/net/ethernet/ibm/emac/tah.c b/drivers/net/ethernet/ibm/emac/tah.c
index 5f51bf7c9dc..872912ef518 100644
--- a/drivers/net/ethernet/ibm/emac/tah.c
+++ b/drivers/net/ethernet/ibm/emac/tah.c
@@ -1,5 +1,5 @@
 /*
- * drivers/net/ibm_newemac/tah.c
+ * drivers/net/ethernet/ibm/emac/tah.c
  *
  * Driver for PowerPC 4xx on-chip ethernet controller, TAH support.
  *
@@ -96,11 +96,8 @@ static int __devinit tah_probe(struct platform_device *ofdev)
 
 	rc = -ENOMEM;
 	dev = kzalloc(sizeof(struct tah_instance), GFP_KERNEL);
-	if (dev == NULL) {
-		printk(KERN_ERR "%s: could not allocate TAH device!\n",
-		       np->full_name);
+	if (dev == NULL)
 		goto err_gone;
-	}
 
 	mutex_init(&dev->lock);
 	dev->ofdev = ofdev;
diff --git a/drivers/net/ethernet/ibm/emac/tah.h b/drivers/net/ethernet/ibm/emac/tah.h
index 3437ab4964c..350b7096a04 100644
--- a/drivers/net/ethernet/ibm/emac/tah.h
+++ b/drivers/net/ethernet/ibm/emac/tah.h
@@ -1,5 +1,5 @@
 /*
- * drivers/net/ibm_newemac/tah.h
+ * drivers/net/ethernet/ibm/emac/tah.h
  *
  * Driver for PowerPC 4xx on-chip ethernet controller, TAH support.
  *
diff --git a/drivers/net/ethernet/ibm/emac/zmii.c b/drivers/net/ethernet/ibm/emac/zmii.c
index 97449e786d6..415e9b4d540 100644
--- a/drivers/net/ethernet/ibm/emac/zmii.c
+++ b/drivers/net/ethernet/ibm/emac/zmii.c
@@ -1,5 +1,5 @@
 /*
- * drivers/net/ibm_newemac/zmii.c
+ * drivers/net/ethernet/ibm/emac/zmii.c
  *
  * Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support.
  *
@@ -240,11 +240,8 @@ static int __devinit zmii_probe(struct platform_device *ofdev)
 
 	rc = -ENOMEM;
 	dev = kzalloc(sizeof(struct zmii_instance), GFP_KERNEL);
-	if (dev == NULL) {
-		printk(KERN_ERR "%s: could not allocate ZMII device!\n",
-		       np->full_name);
+	if (dev == NULL)
 		goto err_gone;
-	}
 
 	mutex_init(&dev->lock);
 	dev->ofdev = ofdev;
diff --git a/drivers/net/ethernet/ibm/emac/zmii.h b/drivers/net/ethernet/ibm/emac/zmii.h
index ceaed823a83..455bfb08549 100644
--- a/drivers/net/ethernet/ibm/emac/zmii.h
+++ b/drivers/net/ethernet/ibm/emac/zmii.h
@@ -1,5 +1,5 @@
 /*
- * drivers/net/ibm_newemac/zmii.h
+ * drivers/net/ethernet/ibm/emac/zmii.h
  *
  * Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support.
  *