Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/tile: check kmalloc() result
  arch/tile: catch up on various minor cleanups.
  arch/tile: avoid erroneous error return for PTRACE_POKEUSR.
  tile: set ARCH_KMALLOC_MINALIGN
  tile: remove homegrown L1_CACHE_ALIGN macro
  arch/tile: Miscellaneous cleanup changes.
  arch/tile: Split the icache flush code off to a generic <arch> header.
  arch/tile: Fix bug in support for atomic64_xx() ops.
  arch/tile: Shrink the tile-opcode files considerably.
  arch/tile: Add driver to enable access to the user dynamic network.
  arch/tile: Enable more sophisticated IRQ model for 32-bit chips.
  Move list types from <linux/list.h> to <linux/types.h>.
  Add wait4() back to the set of <asm-generic/unistd.h> syscalls.
  Revert adding some arch-specific signal syscalls to <linux/syscalls.h>.
  arch/tile: Do not use GFP_KERNEL for dma_alloc_coherent(). Feedback from fujita.tomonori@lab.ntt.co.jp.
  arch/tile: core support for Tilera 32-bit chips.
  Fix up the "generic" unistd.h ABI to be more useful.

1 files changed, 128 insertions, 0 deletions

diff --git a/arch/tile/include/asm/pci.h b/arch/tile/include/asm/pci.h
new file mode 100644
index 00000000000..b0c15da2d5d
--- /dev/null
+++ b/arch/tile/include/asm/pci.h
@@ -0,0 +1,128 @@
+/*
+ * Copyright 2010 Tilera Corporation. All Rights Reserved.
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation, version 2.
+ *
+ *   This program is distributed in the hope that it will be useful, but
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ *   NON INFRINGEMENT.  See the GNU General Public License for
+ *   more details.
+ */
+
+#ifndef _ASM_TILE_PCI_H
+#define _ASM_TILE_PCI_H
+
+#include <asm/pci-bridge.h>
+
+/*
+ * The hypervisor maps the entirety of CPA-space as bus addresses, so
+ * bus addresses are physical addresses.  The networking and block
+ * device layers use this boolean for bounce buffer decisions.
+ */
+#define PCI_DMA_BUS_IS_PHYS     1
+
+struct pci_controller *pci_bus_to_hose(int bus);
+unsigned char __init common_swizzle(struct pci_dev *dev, unsigned char *pinp);
+int __init tile_pci_init(void);
+void pci_iounmap(struct pci_dev *dev, void __iomem *addr);
+void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
+void __devinit pcibios_fixup_bus(struct pci_bus *bus);
+
+int __devinit _tile_cfg_read(struct pci_controller *hose,
+				    int bus,
+				    int slot,
+				    int function,
+				    int offset,
+				    int size,
+				    u32 *val);
+int __devinit _tile_cfg_write(struct pci_controller *hose,
+				     int bus,
+				     int slot,
+				     int function,
+				     int offset,
+				     int size,
+				     u32 val);
+
+/*
+ * These are used to to config reads and writes in the early stages of
+ * setup before the driver infrastructure has been set up enough to be
+ * able to do config reads and writes.
+ */
+#define early_cfg_read(where, size, value) \
+	_tile_cfg_read(controller, \
+		       current_bus, \
+		       pci_slot, \
+		       pci_fn, \
+		       where, \
+		       size, \
+		       value)
+
+#define early_cfg_write(where, size, value) \
+	_tile_cfg_write(controller, \
+		       current_bus, \
+		       pci_slot, \
+		       pci_fn, \
+		       where, \
+		       size, \
+		       value)
+
+
+
+#define PCICFG_BYTE	1
+#define PCICFG_WORD	2
+#define PCICFG_DWORD	4
+
+#define	TILE_NUM_PCIE	2
+
+#define pci_domain_nr(bus) (((struct pci_controller *)(bus)->sysdata)->index)
+
+/*
+ * This decides whether to display the domain number in /proc.
+ */
+static inline int pci_proc_domain(struct pci_bus *bus)
+{
+	return 1;
+}
+
+/*
+ * I/O space is currently not supported.
+ */
+
+#define TILE_PCIE_LOWER_IO		0x0
+#define TILE_PCIE_UPPER_IO		0x10000
+#define TILE_PCIE_PCIE_IO_SIZE		0x0000FFFF
+
+#define _PAGE_NO_CACHE		0
+#define _PAGE_GUARDED		0
+
+
+#define pcibios_assign_all_busses()    pci_assign_all_buses
+extern int pci_assign_all_buses;
+
+static inline void pcibios_set_master(struct pci_dev *dev)
+{
+	/* No special bus mastering setup handling */
+}
+
+#define PCIBIOS_MIN_MEM		0
+#define PCIBIOS_MIN_IO		TILE_PCIE_LOWER_IO
+
+/*
+ * This flag tells if the platform is TILEmpower that needs
+ * special configuration for the PLX switch chip.
+ */
+extern int blade_pci;
+
+/* implement the pci_ DMA API in terms of the generic device dma_ one */
+#include <asm-generic/pci-dma-compat.h>
+
+/* generic pci stuff */
+#include <asm-generic/pci.h>
+
+/* Use any cpu for PCI. */
+#define cpumask_of_pcibus(bus) cpu_online_mask
+
+#endif /* _ASM_TILE_PCI_H */