Merge branch 'for-2.6.26' of master.kernel.org:/pub/scm/linux/kernel/git/olof/pasemi

arch/powerpc/platforms/pasemi/iommu.c

 /*
- * Copyright (C) 2005-2007, PA Semi, Inc
+ * Copyright (C) 2005-2008, PA Semi, Inc
  *
  * Maintained by: Olof Johansson <olof@lixom.net>
  *
@@ -27,7 +27,6 @@
 #include <asm/abs_addr.h>
 #include <asm/firmware.h>
 
-
 #define IOBMAP_PAGE_SHIFT	12
 #define IOBMAP_PAGE_SIZE	(1 << IOBMAP_PAGE_SHIFT)
 #define IOBMAP_PAGE_MASK	(IOBMAP_PAGE_SIZE - 1)
@@ -35,13 +34,13 @@
 #define IOB_BASE		0xe0000000
 #define IOB_SIZE		0x3000
 /* Configuration registers */
-#define IOBCAP_REG		0x10
-#define IOBCOM_REG		0x40
+#define IOBCAP_REG		0x40
+#define IOBCOM_REG		0x100
 /* Enable IOB address translation */
 #define IOBCOM_ATEN		0x00000100
 
 /* Address decode configuration register */
-#define IOB_AD_REG		0x53
+#define IOB_AD_REG		0x14c
 /* IOBCOM_AD_REG fields */
 #define IOB_AD_VGPRT		0x00000e00
 #define IOB_AD_VGAEN		0x00000100
@@ -56,13 +55,13 @@
 #define IOB_AD_TRNG_2G		0x00000001
 #define IOB_AD_TRNG_128G	0x00000003
 
-#define IOB_TABLEBASE_REG	0x55
+#define IOB_TABLEBASE_REG	0x154
 
 /* Base of the 64 4-byte L1 registers */
-#define IOB_XLT_L1_REGBASE	0xac0
+#define IOB_XLT_L1_REGBASE	0x2b00
 
 /* Register to invalidate TLB entries */
-#define IOB_AT_INVAL_TLB_REG	0xb40
+#define IOB_AT_INVAL_TLB_REG	0x2d00
 
 /* The top two bits of the level 1 entry contains valid and type flags */
 #define IOBMAP_L1E_V		0x40000000
@@ -76,7 +75,7 @@
 #define IOBMAP_L2E_V		0x80000000
 #define IOBMAP_L2E_V_CACHED	0xc0000000
 
-static u32 __iomem *iob;
+static void __iomem *iob;
 static u32 iob_l1_emptyval;
 static u32 iob_l2_emptyval;
 static u32 *iob_l2_base;
@@ -219,7 +218,7 @@ int __init iob_init(struct device_node *dn)
 	for (i = 0; i < 64; i++) {
 		/* Each L1 covers 32MB, i.e. 8K entries = 32K of ram */
 		regword = IOBMAP_L1E_V | (__pa(iob_l2_base + i*0x2000) >> 12);
-		out_le32(iob+IOB_XLT_L1_REGBASE+i, regword);
+		out_le32(iob+IOB_XLT_L1_REGBASE+i*4, regword);
 	}
 
 	/* set 2GB translation window, based at 0 */

arch/powerpc/sysdev/mpic.c

@@ -1410,11 +1410,6 @@ void mpic_cpu_set_priority(int prio)
 	mpic_cpu_write(MPIC_INFO(CPU_CURRENT_TASK_PRI), prio);
 }
 
-/*
- * XXX: someone who knows mpic should check this.
- * do we need to eoi the ipi including for kexec cpu here (see xics comments)?
- * or can we reset the mpic in the new kernel?
- */
 void mpic_teardown_this_cpu(int secondary)
 {
 	struct mpic *mpic = mpic_primary;
@@ -1434,6 +1429,10 @@ void mpic_teardown_this_cpu(int secondary)
 
 	/* Set current processor priority to max */
 	mpic_cpu_write(MPIC_INFO(CPU_CURRENT_TASK_PRI), 0xf);
+	/* We need to EOI the IPI since not all platforms reset the MPIC
+	 * on boot and new interrupts wouldn't get delivered otherwise.
+	 */
+	mpic_eoi(mpic);
 
 	spin_unlock_irqrestore(&mpic_lock, flags);
 }

drivers/net/pasemi_mac.c

@@ -404,6 +404,7 @@ static void pasemi_mac_free_csring(struct pasemi_mac_csring *csring)
 	pasemi_dma_free_flag(csring->events[1]);
 	pasemi_dma_free_ring(&csring->chan);
 	pasemi_dma_free_chan(&csring->chan);
+	pasemi_dma_free_fun(csring->fun);
 }
 
 static int pasemi_mac_setup_rx_resources(const struct net_device *dev)
@@ -1150,7 +1151,10 @@ static int pasemi_mac_open(struct net_device *dev)
 	if (!mac->tx)
 		goto out_tx_ring;
 
-	if (dev->mtu > 1500) {
+	/* We might already have allocated rings in case mtu was changed
+	 * before interface was brought up.
+	 */
+	if (dev->mtu > 1500 && !mac->num_cs) {
 		pasemi_mac_setup_csrings(mac);
 		if (!mac->num_cs)
 			goto out_tx_ring;
@@ -1388,8 +1392,12 @@ static int pasemi_mac_close(struct net_device *dev)
 	free_irq(mac->tx->chan.irq, mac->tx);
 	free_irq(mac->rx->chan.irq, mac->rx);
 
-	for (i = 0; i < mac->num_cs; i++)
+	for (i = 0; i < mac->num_cs; i++) {
 		pasemi_mac_free_csring(mac->cs[i]);
+		mac->cs[i] = NULL;
+	}
+
+	mac->num_cs = 0;
 
 	/* Free resources */
 	pasemi_mac_free_rx_resources(mac);
@@ -1640,6 +1648,26 @@ static int pasemi_mac_poll(struct napi_struct *napi, int budget)
 	return pkts;
 }
 
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling 'interrupt' - used by things like netconsole to send skbs
+ * without having to re-enable interrupts. It's not called while
+ * the interrupt routine is executing.
+ */
+static void pasemi_mac_netpoll(struct net_device *dev)
+{
+	const struct pasemi_mac *mac = netdev_priv(dev);
+
+	disable_irq(mac->tx->chan.irq);
+	pasemi_mac_tx_intr(mac->tx->chan.irq, mac->tx);
+	enable_irq(mac->tx->chan.irq);
+
+	disable_irq(mac->rx->chan.irq);
+	pasemi_mac_rx_intr(mac->rx->chan.irq, mac->rx);
+	enable_irq(mac->rx->chan.irq);
+}
+#endif
+
 static int pasemi_mac_change_mtu(struct net_device *dev, int new_mtu)
 {
 	struct pasemi_mac *mac = netdev_priv(dev);
@@ -1799,6 +1827,9 @@ pasemi_mac_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	dev->mtu = PE_DEF_MTU;
 	/* 1500 MTU + ETH_HLEN + VLAN_HLEN + 2 64B cachelines */
 	mac->bufsz = dev->mtu + ETH_HLEN + ETH_FCS_LEN + LOCAL_SKB_ALIGN + 128;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	dev->poll_controller = pasemi_mac_netpoll;
+#endif
 
 	dev->change_mtu = pasemi_mac_change_mtu;
 	dev->ethtool_ops = &pasemi_mac_ethtool_ops;