Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (202 commits)
  [POWERPC] Fix compile breakage for 64-bit UP configs
  [POWERPC] Define copy_siginfo_from_user32
  [POWERPC] Add compat handler for PTRACE_GETSIGINFO
  [POWERPC] i2c: Fix build breakage introduced by OF helpers
  [POWERPC] Optimize fls64() on 64-bit processors
  [POWERPC] irqtrace support for 64-bit powerpc
  [POWERPC] Stacktrace support for lockdep
  [POWERPC] Move stackframe definitions to common header
  [POWERPC] Fix device-tree locking vs. interrupts
  [POWERPC] Make pci_bus_to_host()'s struct pci_bus * argument const
  [POWERPC] Remove unused __max_memory variable
  [POWERPC] Simplify xics direct/lpar irq_host setup
  [POWERPC] Use pseries_setup_i8259_cascade() in pseries_mpic_init_IRQ()
  [POWERPC] Turn xics_setup_8259_cascade() into a generic pseries_setup_i8259_cascade()
  [POWERPC] Move xics_setup_8259_cascade() into platforms/pseries/setup.c
  [POWERPC] Use asm-generic/bitops/find.h in bitops.h
  [POWERPC] 83xx: mpc8315 - fix USB UTMI Host setup
  [POWERPC] 85xx: Fix the size of qe muram for MPC8568E
  [POWERPC] 86xx: mpc86xx_hpcn - Temporarily accept old dts node identifier.
  [POWERPC] 86xx: mark functions static, other minor cleanups
  ...

2 files changed, 153 insertions, 10 deletions

diff --git a/arch/powerpc/platforms/pasemi/dma_lib.c b/arch/powerpc/platforms/pasemi/dma_lib.c
index c529d8dff395..217af321b0ca 100644
--- a/arch/powerpc/platforms/pasemi/dma_lib.c
+++ b/arch/powerpc/platforms/pasemi/dma_lib.c
@@ -17,6 +17,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
+#include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/pci.h>
@@ -26,6 +27,8 @@
 
 #define MAX_TXCH 64
 #define MAX_RXCH 64
+#define MAX_FLAGS 64
+#define MAX_FUN 8
 
 static struct pasdma_status *dma_status;
 
@@ -43,6 +46,8 @@ static struct pci_dev *dma_pdev;
 
 static DECLARE_BITMAP(txch_free, MAX_TXCH);
 static DECLARE_BITMAP(rxch_free, MAX_RXCH);
+static DECLARE_BITMAP(flags_free, MAX_FLAGS);
+static DECLARE_BITMAP(fun_free, MAX_FUN);
 
 /* pasemi_read_iob_reg - read IOB register
  * @reg: Register to read (offset into PCI CFG space)
@@ -373,6 +378,106 @@ void pasemi_dma_free_buf(struct pasemi_dmachan *chan, int size,
 }
 EXPORT_SYMBOL(pasemi_dma_free_buf);
 
+/* pasemi_dma_alloc_flag - Allocate a flag (event) for channel syncronization
+ *
+ * Allocates a flag for use with channel syncronization (event descriptors).
+ * Returns allocated flag (0-63), < 0 on error.
+ */
+int pasemi_dma_alloc_flag(void)
+{
+	int bit;
+
+retry:
+	bit = find_next_bit(flags_free, MAX_FLAGS, 0);
+	if (bit >= MAX_FLAGS)
+		return -ENOSPC;
+	if (!test_and_clear_bit(bit, flags_free))
+		goto retry;
+
+	return bit;
+}
+EXPORT_SYMBOL(pasemi_dma_alloc_flag);
+
+
+/* pasemi_dma_free_flag - Deallocates a flag (event)
+ * @flag: Flag number to deallocate
+ *
+ * Frees up a flag so it can be reused for other purposes.
+ */
+void pasemi_dma_free_flag(int flag)
+{
+	BUG_ON(test_bit(flag, flags_free));
+	BUG_ON(flag >= MAX_FLAGS);
+	set_bit(flag, flags_free);
+}
+EXPORT_SYMBOL(pasemi_dma_free_flag);
+
+
+/* pasemi_dma_set_flag - Sets a flag (event) to 1
+ * @flag: Flag number to set active
+ *
+ * Sets the flag provided to 1.
+ */
+void pasemi_dma_set_flag(int flag)
+{
+	BUG_ON(flag >= MAX_FLAGS);
+	if (flag < 32)
+		pasemi_write_dma_reg(PAS_DMA_TXF_SFLG0, 1 << flag);
+	else
+		pasemi_write_dma_reg(PAS_DMA_TXF_SFLG1, 1 << flag);
+}
+EXPORT_SYMBOL(pasemi_dma_set_flag);
+
+/* pasemi_dma_clear_flag - Sets a flag (event) to 0
+ * @flag: Flag number to set inactive
+ *
+ * Sets the flag provided to 0.
+ */
+void pasemi_dma_clear_flag(int flag)
+{
+	BUG_ON(flag >= MAX_FLAGS);
+	if (flag < 32)
+		pasemi_write_dma_reg(PAS_DMA_TXF_CFLG0, 1 << flag);
+	else
+		pasemi_write_dma_reg(PAS_DMA_TXF_CFLG1, 1 << flag);
+}
+EXPORT_SYMBOL(pasemi_dma_clear_flag);
+
+/* pasemi_dma_alloc_fun - Allocate a function engine
+ *
+ * Allocates a function engine to use for crypto/checksum offload
+ * Returns allocated engine (0-8), < 0 on error.
+ */
+int pasemi_dma_alloc_fun(void)
+{
+	int bit;
+
+retry:
+	bit = find_next_bit(fun_free, MAX_FLAGS, 0);
+	if (bit >= MAX_FLAGS)
+		return -ENOSPC;
+	if (!test_and_clear_bit(bit, fun_free))
+		goto retry;
+
+	return bit;
+}
+EXPORT_SYMBOL(pasemi_dma_alloc_fun);
+
+
+/* pasemi_dma_free_fun - Deallocates a function engine
+ * @flag: Engine number to deallocate
+ *
+ * Frees up a function engine so it can be used for other purposes.
+ */
+void pasemi_dma_free_fun(int fun)
+{
+	BUG_ON(test_bit(fun, fun_free));
+	BUG_ON(fun >= MAX_FLAGS);
+	set_bit(fun, fun_free);
+}
+EXPORT_SYMBOL(pasemi_dma_free_fun);
+
+
 static void *map_onedev(struct pci_dev *p, int index)
 {
 	struct device_node *dn;
@@ -410,6 +515,7 @@ int pasemi_dma_init(void)
 	struct resource res;
 	struct device_node *dn;
 	int i, intf, err = 0;
+	unsigned long timeout;
 	u32 tmp;
 
 	if (!machine_is(pasemi))
@@ -478,6 +584,44 @@ int pasemi_dma_init(void)
 	for (i = 0; i < MAX_RXCH; i++)
 		__set_bit(i, rxch_free);
 
+	timeout = jiffies + HZ;
+	pasemi_write_dma_reg(PAS_DMA_COM_RXCMD, 0);
+	while (pasemi_read_dma_reg(PAS_DMA_COM_RXSTA) & 1) {
+		if (time_after(jiffies, timeout)) {
+			pr_warning("Warning: Could not disable RX section\n");
+			break;
+		}
+	}
+
+	timeout = jiffies + HZ;
+	pasemi_write_dma_reg(PAS_DMA_COM_TXCMD, 0);
+	while (pasemi_read_dma_reg(PAS_DMA_COM_TXSTA) & 1) {
+		if (time_after(jiffies, timeout)) {
+			pr_warning("Warning: Could not disable TX section\n");
+			break;
+		}
+	}
+
+	/* setup resource allocations for the different DMA sections */
+	tmp = pasemi_read_dma_reg(PAS_DMA_COM_CFG);
+	pasemi_write_dma_reg(PAS_DMA_COM_CFG, tmp | 0x18000000);
+
+	/* enable tx section */
+	pasemi_write_dma_reg(PAS_DMA_COM_TXCMD, PAS_DMA_COM_TXCMD_EN);
+
+	/* enable rx section */
+	pasemi_write_dma_reg(PAS_DMA_COM_RXCMD, PAS_DMA_COM_RXCMD_EN);
+
+	for (i = 0; i < MAX_FLAGS; i++)
+		__set_bit(i, flags_free);
+
+	for (i = 0; i < MAX_FUN; i++)
+		__set_bit(i, fun_free);
+
+	/* clear all status flags */
+	pasemi_write_dma_reg(PAS_DMA_TXF_CFLG0, 0xffffffff);
+	pasemi_write_dma_reg(PAS_DMA_TXF_CFLG1, 0xffffffff);
+
 	printk(KERN_INFO "PA Semi PWRficient DMA library initialized "
 		"(%d tx, %d rx channels)\n", num_txch, num_rxch);
 
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index 5803f11c77fc..86967bdd8774 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -1,5 +1,5 @@
 /*
- * 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 */