Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

Conflicts:

	arch/x86/kernel/io_apic.c

12 files changed, 217 insertions, 50 deletions

diff --git a/arch/arm/mach-realview/include/mach/board-eb.h b/arch/arm/mach-realview/include/mach/board-eb.h
index 8d699fd324d..268d7701fa9 100644
--- a/arch/arm/mach-realview/include/mach/board-eb.h
+++ b/arch/arm/mach-realview/include/mach/board-eb.h
@@ -49,16 +49,14 @@
 #ifdef CONFIG_REALVIEW_EB_ARM11MP_REVB
 #define REALVIEW_EB11MP_SCU_BASE	0x10100000	/* SCU registers */
 #define REALVIEW_EB11MP_GIC_CPU_BASE	0x10100100	/* Generic interrupt controller CPU interface */
-#define REALVIEW_EB11MP_TWD_BASE	0x10100700
-#define REALVIEW_EB11MP_TWD_SIZE	0x00000100
+#define REALVIEW_EB11MP_TWD_BASE	0x10100600
 #define REALVIEW_EB11MP_GIC_DIST_BASE	0x10101000	/* Generic interrupt controller distributor */
 #define REALVIEW_EB11MP_L220_BASE	0x10102000	/* L220 registers */
 #define REALVIEW_EB11MP_SYS_PLD_CTRL1	0xD8		/* Register offset for MPCore sysctl */
 #else
 #define REALVIEW_EB11MP_SCU_BASE	0x1F000000	/* SCU registers */
 #define REALVIEW_EB11MP_GIC_CPU_BASE	0x1F000100	/* Generic interrupt controller CPU interface */
-#define REALVIEW_EB11MP_TWD_BASE	0x1F000700
-#define REALVIEW_EB11MP_TWD_SIZE	0x00000100
+#define REALVIEW_EB11MP_TWD_BASE	0x1F000600
 #define REALVIEW_EB11MP_GIC_DIST_BASE	0x1F001000	/* Generic interrupt controller distributor */
 #define REALVIEW_EB11MP_L220_BASE	0x1F002000	/* L220 registers */
 #define REALVIEW_EB11MP_SYS_PLD_CTRL1	0x74		/* Register offset for MPCore sysctl */
@@ -163,7 +161,7 @@
 #define NR_IRQS			NR_IRQS_EB
 #endif
 
-#if defined(CONFIG_REALVIEW_EB_ARM11MP) \
+#if defined(CONFIG_REALVIEW_EB_ARM11MP) || defined(CONFIG_REALVIEW_EB_A9MP) \
 	&& (!defined(MAX_GIC_NR) || (MAX_GIC_NR < NR_GIC_EB11MP))
 #undef MAX_GIC_NR
 #define MAX_GIC_NR		NR_GIC_EB11MP
@@ -177,6 +175,7 @@
 #define REALVIEW_EB_PROC_ARM9		0x02000000
 #define REALVIEW_EB_PROC_ARM11		0x04000000
 #define REALVIEW_EB_PROC_ARM11MP	0x06000000
+#define REALVIEW_EB_PROC_A9MP		0x0C000000
 
 #define check_eb_proc(proc_type)						\
 	((readl(__io_address(REALVIEW_SYS_PROCID)) & REALVIEW_EB_PROC_MASK)	\
@@ -188,4 +187,13 @@
 #define core_tile_eb11mp()	0
 #endif
 
+#ifdef CONFIG_REALVIEW_EB_A9MP
+#define core_tile_a9mp()	check_eb_proc(REALVIEW_EB_PROC_A9MP)
+#else
+#define core_tile_a9mp()	0
+#endif
+
+#define machine_is_realview_eb_mp() \
+	(machine_is_realview_eb() && (core_tile_eb11mp() || core_tile_a9mp()))
+
 #endif	/* __ASM_ARCH_BOARD_EB_H */
diff --git a/arch/arm/mach-realview/include/mach/board-pb11mp.h b/arch/arm/mach-realview/include/mach/board-pb11mp.h
index ecd80e58631..53ea0e7a126 100644
--- a/arch/arm/mach-realview/include/mach/board-pb11mp.h
+++ b/arch/arm/mach-realview/include/mach/board-pb11mp.h
@@ -77,8 +77,7 @@
  */
 #define REALVIEW_TC11MP_SCU_BASE		0x1F000000	/* IRQ, Test chip */
 #define REALVIEW_TC11MP_GIC_CPU_BASE		0x1F000100	/* Test chip interrupt controller CPU interface */
-#define REALVIEW_TC11MP_TWD_BASE		0x1F000700
-#define REALVIEW_TC11MP_TWD_SIZE		0x00000100
+#define REALVIEW_TC11MP_TWD_BASE		0x1F000600
 #define REALVIEW_TC11MP_GIC_DIST_BASE		0x1F001000	/* Test chip interrupt controller distributor */
 #define REALVIEW_TC11MP_L220_BASE		0x1F002000	/* L220 registers */
 
diff --git a/arch/arm/mach-realview/include/mach/board-pba8.h b/arch/arm/mach-realview/include/mach/board-pba8.h
new file mode 100644
index 00000000000..c8bed8f58ba
--- /dev/null
+++ b/arch/arm/mach-realview/include/mach/board-pba8.h
@@ -0,0 +1,152 @@
+/*
+ * include/asm-arm/arch-realview/board-pba8.h
+ *
+ * Copyright (C) 2008 ARM Limited
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#ifndef __ASM_ARCH_BOARD_PBA8_H
+#define __ASM_ARCH_BOARD_PBA8_H
+
+#include <mach/platform.h>
+
+/*
+ * Peripheral addresses
+ */
+#define REALVIEW_PBA8_UART0_BASE		0x10009000	/* UART 0 */
+#define REALVIEW_PBA8_UART1_BASE		0x1000A000	/* UART 1 */
+#define REALVIEW_PBA8_UART2_BASE		0x1000B000	/* UART 2 */
+#define REALVIEW_PBA8_UART3_BASE		0x1000C000	/* UART 3 */
+#define REALVIEW_PBA8_SSP_BASE			0x1000D000	/* Synchronous Serial Port */
+#define REALVIEW_PBA8_WATCHDOG0_BASE		0x1000F000	/* Watchdog 0 */
+#define REALVIEW_PBA8_WATCHDOG_BASE		0x10010000	/* watchdog interface */
+#define REALVIEW_PBA8_TIMER0_1_BASE		0x10011000	/* Timer 0 and 1 */
+#define REALVIEW_PBA8_TIMER2_3_BASE		0x10012000	/* Timer 2 and 3 */
+#define REALVIEW_PBA8_GPIO0_BASE		0x10013000	/* GPIO port 0 */
+#define REALVIEW_PBA8_RTC_BASE			0x10017000	/* Real Time Clock */
+#define REALVIEW_PBA8_TIMER4_5_BASE		0x10018000	/* Timer 4/5 */
+#define REALVIEW_PBA8_TIMER6_7_BASE		0x10019000	/* Timer 6/7 */
+#define REALVIEW_PBA8_SCTL_BASE			0x1001A000	/* System Controller */
+#define REALVIEW_PBA8_CLCD_BASE			0x10020000	/* CLCD */
+#define REALVIEW_PBA8_ONB_SRAM_BASE		0x10060000	/* On-board SRAM */
+#define REALVIEW_PBA8_DMC_BASE			0x100E0000	/* DMC configuration */
+#define REALVIEW_PBA8_SMC_BASE			0x100E1000	/* SMC configuration */
+#define REALVIEW_PBA8_CAN_BASE			0x100E2000	/* CAN bus */
+#define REALVIEW_PBA8_CF_BASE			0x18000000	/* Compact flash */
+#define REALVIEW_PBA8_CF_MEM_BASE		0x18003000	/* SMC for Compact flash */
+#define REALVIEW_PBA8_GIC_CPU_BASE		0x1E000000	/* Generic interrupt controller CPU interface */
+#define REALVIEW_PBA8_FLASH0_BASE		0x40000000
+#define REALVIEW_PBA8_FLASH0_SIZE		SZ_64M
+#define REALVIEW_PBA8_FLASH1_BASE		0x44000000
+#define REALVIEW_PBA8_FLASH1_SIZE		SZ_64M
+#define REALVIEW_PBA8_ETH_BASE			0x4E000000	/* Ethernet */
+#define REALVIEW_PBA8_USB_BASE			0x4F000000	/* USB */
+#define REALVIEW_PBA8_GIC_DIST_BASE		0x1E001000	/* Generic interrupt controller distributor */
+#define REALVIEW_PBA8_LT_BASE			0xC0000000	/* Logic Tile expansion */
+#define REALVIEW_PBA8_SDRAM6_BASE		0x70000000	/* SDRAM bank 6 256MB */
+#define REALVIEW_PBA8_SDRAM7_BASE		0x80000000	/* SDRAM bank 7 256MB */
+
+#define REALVIEW_PBA8_SYS_PLD_CTRL1		0x74
+
+/*
+ * PBA8 PCI regions
+ */
+#define REALVIEW_PBA8_PCI_BASE			0x90040000	/* PCI-X Unit base */
+#define REALVIEW_PBA8_PCI_IO_BASE		0x90050000	/* IO Region on AHB */
+#define REALVIEW_PBA8_PCI_MEM_BASE		0xA0000000	/* MEM Region on AHB */
+
+#define REALVIEW_PBA8_PCI_BASE_SIZE		0x10000		/* 16 Kb */
+#define REALVIEW_PBA8_PCI_IO_SIZE		0x1000		/* 4 Kb */
+#define REALVIEW_PBA8_PCI_MEM_SIZE		0x20000000	/* 512 MB */
+
+/*
+ * Irqs
+ */
+#define IRQ_PBA8_GIC_START			32
+
+/* L220
+#define IRQ_PBA8_L220_EVENT	(IRQ_PBA8_GIC_START + 29)
+#define IRQ_PBA8_L220_SLAVE	(IRQ_PBA8_GIC_START + 30)
+#define IRQ_PBA8_L220_DECODE	(IRQ_PBA8_GIC_START + 31)
+*/
+
+/*
+ * PB-A8 on-board gic irq sources
+ */
+#define IRQ_PBA8_WATCHDOG	(IRQ_PBA8_GIC_START + 0)	/* Watchdog timer */
+#define IRQ_PBA8_SOFT		(IRQ_PBA8_GIC_START + 1)	/* Software interrupt */
+#define IRQ_PBA8_COMMRx		(IRQ_PBA8_GIC_START + 2)	/* Debug Comm Rx interrupt */
+#define IRQ_PBA8_COMMTx		(IRQ_PBA8_GIC_START + 3)	/* Debug Comm Tx interrupt */
+#define IRQ_PBA8_TIMER0_1	(IRQ_PBA8_GIC_START + 4)	/* Timer 0/1 (default timer) */
+#define IRQ_PBA8_TIMER2_3	(IRQ_PBA8_GIC_START + 5)	/* Timer 2/3 */
+#define IRQ_PBA8_GPIO0		(IRQ_PBA8_GIC_START + 6)	/* GPIO 0 */
+#define IRQ_PBA8_GPIO1		(IRQ_PBA8_GIC_START + 7)	/* GPIO 1 */
+#define IRQ_PBA8_GPIO2		(IRQ_PBA8_GIC_START + 8)	/* GPIO 2 */
+								/* 9 reserved */
+#define IRQ_PBA8_RTC		(IRQ_PBA8_GIC_START + 10)	/* Real Time Clock */
+#define IRQ_PBA8_SSP		(IRQ_PBA8_GIC_START + 11)	/* Synchronous Serial Port */
+#define IRQ_PBA8_UART0		(IRQ_PBA8_GIC_START + 12)	/* UART 0 on development chip */
+#define IRQ_PBA8_UART1		(IRQ_PBA8_GIC_START + 13)	/* UART 1 on development chip */
+#define IRQ_PBA8_UART2		(IRQ_PBA8_GIC_START + 14)	/* UART 2 on development chip */
+#define IRQ_PBA8_UART3		(IRQ_PBA8_GIC_START + 15)	/* UART 3 on development chip */
+#define IRQ_PBA8_SCI		(IRQ_PBA8_GIC_START + 16)	/* Smart Card Interface */
+#define IRQ_PBA8_MMCI0A		(IRQ_PBA8_GIC_START + 17)	/* Multimedia Card 0A */
+#define IRQ_PBA8_MMCI0B		(IRQ_PBA8_GIC_START + 18)	/* Multimedia Card 0B */
+#define IRQ_PBA8_AACI		(IRQ_PBA8_GIC_START + 19)	/* Audio Codec */
+#define IRQ_PBA8_KMI0		(IRQ_PBA8_GIC_START + 20)	/* Keyboard/Mouse port 0 */
+#define IRQ_PBA8_KMI1		(IRQ_PBA8_GIC_START + 21)	/* Keyboard/Mouse port 1 */
+#define IRQ_PBA8_CHARLCD	(IRQ_PBA8_GIC_START + 22)	/* Character LCD */
+#define IRQ_PBA8_CLCD		(IRQ_PBA8_GIC_START + 23)	/* CLCD controller */
+#define IRQ_PBA8_DMAC		(IRQ_PBA8_GIC_START + 24)	/* DMA controller */
+#define IRQ_PBA8_PWRFAIL	(IRQ_PBA8_GIC_START + 25)	/* Power failure */
+#define IRQ_PBA8_PISMO		(IRQ_PBA8_GIC_START + 26)	/* PISMO interface */
+#define IRQ_PBA8_DoC		(IRQ_PBA8_GIC_START + 27)	/* Disk on Chip memory controller */
+#define IRQ_PBA8_ETH		(IRQ_PBA8_GIC_START + 28)	/* Ethernet controller */
+#define IRQ_PBA8_USB		(IRQ_PBA8_GIC_START + 29)	/* USB controller */
+#define IRQ_PBA8_TSPEN		(IRQ_PBA8_GIC_START + 30)	/* Touchscreen pen */
+#define IRQ_PBA8_TSKPAD		(IRQ_PBA8_GIC_START + 31)	/* Touchscreen keypad */
+
+/* ... */
+#define IRQ_PBA8_PCI0		(IRQ_PBA8_GIC_START + 50)
+#define IRQ_PBA8_PCI1		(IRQ_PBA8_GIC_START + 51)
+#define IRQ_PBA8_PCI2		(IRQ_PBA8_GIC_START + 52)
+#define IRQ_PBA8_PCI3		(IRQ_PBA8_GIC_START + 53)
+
+#define IRQ_PBA8_SMC		-1
+#define IRQ_PBA8_SCTL		-1
+
+#define NR_GIC_PBA8		1
+
+/*
+ * Only define NR_IRQS if less than NR_IRQS_PBA8
+ */
+#define NR_IRQS_PBA8		(IRQ_PBA8_GIC_START + 64)
+
+#if defined(CONFIG_MACH_REALVIEW_PBA8)
+
+#if !defined(NR_IRQS) || (NR_IRQS < NR_IRQS_PBA8)
+#undef NR_IRQS
+#define NR_IRQS			NR_IRQS_PBA8
+#endif
+
+#if !defined(MAX_GIC_NR) || (MAX_GIC_NR < NR_GIC_PBA8)
+#undef MAX_GIC_NR
+#define MAX_GIC_NR		NR_GIC_PBA8
+#endif
+
+#endif	/* CONFIG_MACH_REALVIEW_PBA8 */
+
+#endif	/* __ASM_ARCH_BOARD_PBA8_H */
diff --git a/arch/arm/mach-realview/include/mach/clkdev.h b/arch/arm/mach-realview/include/mach/clkdev.h
new file mode 100644
index 00000000000..04b37a89801
--- /dev/null
+++ b/arch/arm/mach-realview/include/mach/clkdev.h
@@ -0,0 +1,7 @@
+#ifndef __ASM_MACH_CLKDEV_H
+#define __ASM_MACH_CLKDEV_H
+
+#define __clk_get(clk) ({ 1; })
+#define __clk_put(clk) do { } while (0)
+
+#endif
diff --git a/arch/arm/mach-realview/include/mach/debug-macro.S b/arch/arm/mach-realview/include/mach/debug-macro.S
index 7196bcadff0..92dbcb9e179 100644
--- a/arch/arm/mach-realview/include/mach/debug-macro.S
+++ b/arch/arm/mach-realview/include/mach/debug-macro.S
@@ -8,15 +8,36 @@
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
- *
-*/
+ */
+
+#if defined(CONFIG_MACH_REALVIEW_EB) || \
+    defined(CONFIG_MACH_REALVIEW_PB11MP) || \
+    defined(CONFIG_MACH_REALVIEW_PBA8)
+#ifndef DEBUG_LL_UART_OFFSET
+#define DEBUG_LL_UART_OFFSET	0x00009000
+#elif DEBUG_LL_UART_OFFSET != 0x00009000
+#warning "DEBUG_LL_UART_OFFSET already defined to a different value"
+#endif
+#endif
+
+#ifdef CONFIG_MACH_REALVIEW_PB1176
+#ifndef DEBUG_LL_UART_OFFSET
+#define DEBUG_LL_UART_OFFSET	0x0010c000
+#elif DEBUG_LL_UART_OFFSET != 0x0010c000
+#warning "DEBUG_LL_UART_OFFSET already defined to a different value"
+#endif
+#endif
+
+#ifndef DEBUG_LL_UART_OFFSET
+#error "Unknown RealView platform"
+#endif
 
 		.macro	addruart,rx
 		mrc	p15, 0, \rx, c1, c0
 		tst	\rx, #1			@ MMU enabled?
 		moveq	\rx,      #0x10000000
-		movne	\rx,      #0xf0000000	@ virtual base
-		orr	\rx, \rx, #0x00009000
+		movne	\rx,      #0xfb000000	@ virtual base
+		orr	\rx, \rx, #DEBUG_LL_UART_OFFSET
 		.endm
 
 #include <asm/hardware/debug-pl01x.S>
diff --git a/arch/arm/mach-realview/include/mach/dma.h b/arch/arm/mach-realview/include/mach/dma.h
deleted file mode 100644
index f1a5a1a1095..00000000000
--- a/arch/arm/mach-realview/include/mach/dma.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- *  arch/arm/mach-realview/include/mach/dma.h
- *
- *  Copyright (C) 2003 ARM Limited.
- *  Copyright (C) 1997,1998 Russell King
- *
- * 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; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
diff --git a/arch/arm/mach-realview/include/mach/hardware.h b/arch/arm/mach-realview/include/mach/hardware.h
index 79a93b3dfca..b42c14f89ac 100644
--- a/arch/arm/mach-realview/include/mach/hardware.h
+++ b/arch/arm/mach-realview/include/mach/hardware.h
@@ -25,7 +25,14 @@
 #include <asm/sizes.h>
 
 /* macro to get at IO space when running virtually */
-#define IO_ADDRESS(x)		(((x) & 0x0fffffff) + 0xf0000000)
+/*
+ * Statically mapped addresses:
+ *
+ * 10xx xxxx -> fbxx xxxx
+ * 1exx xxxx -> fdxx xxxx
+ * 1fxx xxxx -> fexx xxxx
+ */
+#define IO_ADDRESS(x)		(((x) & 0x03ffffff) + 0xfb000000)
 #define __io_address(n)		__io(IO_ADDRESS(n))
 
 #endif
diff --git a/arch/arm/mach-realview/include/mach/io.h b/arch/arm/mach-realview/include/mach/io.h
index aa069424d31..f05bcdf605d 100644
--- a/arch/arm/mach-realview/include/mach/io.h
+++ b/arch/arm/mach-realview/include/mach/io.h
@@ -22,12 +22,7 @@
 
 #define IO_SPACE_LIMIT 0xffffffff
 
-static inline void __iomem *__io(unsigned long addr)
-{
-	return (void __iomem *)addr;
-}
-
-#define __io(a)			__io(a)
-#define __mem_pci(a)		(a)
+#define __io(a)		__typesafe_io(a)
+#define __mem_pci(a)	(a)
 
 #endif
diff --git a/arch/arm/mach-realview/include/mach/irqs.h b/arch/arm/mach-realview/include/mach/irqs.h
index 02a918529db..fe5cb987aa2 100644
--- a/arch/arm/mach-realview/include/mach/irqs.h
+++ b/arch/arm/mach-realview/include/mach/irqs.h
@@ -25,6 +25,7 @@
 #include <mach/board-eb.h>
 #include <mach/board-pb11mp.h>
 #include <mach/board-pb1176.h>
+#include <mach/board-pba8.h>
 
 #define IRQ_LOCALTIMER		29
 #define IRQ_LOCALWDOG		30
diff --git a/arch/arm/mach-realview/include/mach/memory.h b/arch/arm/mach-realview/include/mach/memory.h
index 0e673483a14..293c30025e7 100644
--- a/arch/arm/mach-realview/include/mach/memory.h
+++ b/arch/arm/mach-realview/include/mach/memory.h
@@ -23,16 +23,10 @@
 /*
  * Physical DRAM offset.
  */
+#ifdef CONFIG_REALVIEW_HIGH_PHYS_OFFSET
+#define PHYS_OFFSET		UL(0x70000000)
+#else
 #define PHYS_OFFSET		UL(0x00000000)
-
-/*
- * Virtual view <-> DMA view memory address translations
- * virt_to_bus: Used to translate the virtual address to an
- *              address suitable to be passed to set_dma_addr
- * bus_to_virt: Used to convert an address for DMA operations
- *              to an address that the kernel can use.
- */
-#define __virt_to_bus(x)	((x) - PAGE_OFFSET)
-#define __bus_to_virt(x)	((x) + PAGE_OFFSET)
+#endif
 
 #endif
diff --git a/arch/arm/mach-realview/include/mach/uncompress.h b/arch/arm/mach-realview/include/mach/uncompress.h
index 79f50f218e7..415d634d52a 100644
--- a/arch/arm/mach-realview/include/mach/uncompress.h
+++ b/arch/arm/mach-realview/include/mach/uncompress.h
@@ -23,6 +23,7 @@
 #include <mach/board-eb.h>
 #include <mach/board-pb11mp.h>
 #include <mach/board-pb1176.h>
+#include <mach/board-pba8.h>
 
 #define AMBA_UART_DR(base)	(*(volatile unsigned char *)((base) + 0x00))
 #define AMBA_UART_LCRH(base)	(*(volatile unsigned char *)((base) + 0x2c))
@@ -40,6 +41,8 @@ static inline unsigned long get_uart_base(void)
 		return REALVIEW_PB11MP_UART0_BASE;
 	else if (machine_is_realview_pb1176())
 		return REALVIEW_PB1176_UART0_BASE;
+	else if (machine_is_realview_pba8())
+		return REALVIEW_PBA8_UART0_BASE;
 	else
 		return 0;
 }
diff --git a/arch/arm/mach-realview/include/mach/vmalloc.h b/arch/arm/mach-realview/include/mach/vmalloc.h
index 48cbcc873db..fe0de1b507a 100644
--- a/arch/arm/mach-realview/include/mach/vmalloc.h
+++ b/arch/arm/mach-realview/include/mach/vmalloc.h
@@ -18,4 +18,4 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
-#define VMALLOC_END		(PAGE_OFFSET + 0x18000000)
+#define VMALLOC_END		0xf8000000