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common.h
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/*
* (C) Copyright 2000-2009
* Wolfgang Denk, DENX Software Engineering, [email protected].
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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
*/
#ifndef __COMMON_H_
#define __COMMON_H_ 1
#undef _LINUX_CONFIG_H
#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */
#ifndef __ASSEMBLY__ /* put C only stuff in this section */
typedef unsigned char uchar;
typedef volatile unsigned long vu_long;
typedef volatile unsigned short vu_short;
typedef volatile unsigned char vu_char;
#include <config.h>
#include <linux/bitops.h>
#include <linux/types.h>
#include <linux/string.h>
#include <asm/ptrace.h>
#include <stdarg.h>
#if defined(CONFIG_PCI) && (defined(CONFIG_4xx) && !defined(CONFIG_AP1000))
#include <pci.h>
#endif
#if defined(CONFIG_8xx)
#include <asm/8xx_immap.h>
#if defined(CONFIG_MPC852) || defined(CONFIG_MPC852T) || \
defined(CONFIG_MPC859) || defined(CONFIG_MPC859T) || \
defined(CONFIG_MPC859DSL) || \
defined(CONFIG_MPC866) || defined(CONFIG_MPC866T) || \
defined(CONFIG_MPC866P)
# define CONFIG_MPC866_FAMILY 1
#elif defined(CONFIG_MPC870) \
|| defined(CONFIG_MPC875) \
|| defined(CONFIG_MPC880) \
|| defined(CONFIG_MPC885)
# define CONFIG_MPC885_FAMILY 1
#endif
#if defined(CONFIG_MPC860) \
|| defined(CONFIG_MPC860T) \
|| defined(CONFIG_MPC866_FAMILY) \
|| defined(CONFIG_MPC885_FAMILY)
# define CONFIG_MPC86x 1
#endif
#elif defined(CONFIG_5xx)
#include <asm/5xx_immap.h>
#elif defined(CONFIG_MPC5xxx)
#include <mpc5xxx.h>
#elif defined(CONFIG_MPC512X)
#include <asm/immap_512x.h>
#elif defined(CONFIG_MPC8220)
#include <asm/immap_8220.h>
#elif defined(CONFIG_8260)
#if defined(CONFIG_MPC8247) \
|| defined(CONFIG_MPC8248) \
|| defined(CONFIG_MPC8271) \
|| defined(CONFIG_MPC8272)
#define CONFIG_MPC8272_FAMILY 1
#endif
#if defined(CONFIG_MPC8272_FAMILY)
#define CONFIG_MPC8260 1
#endif
#include <asm/immap_8260.h>
#endif
#ifdef CONFIG_MPC86xx
#include <mpc86xx.h>
#include <asm/immap_86xx.h>
#endif
#ifdef CONFIG_MPC85xx
#include <mpc85xx.h>
#include <asm/immap_85xx.h>
#endif
#ifdef CONFIG_MPC83xx
#include <mpc83xx.h>
#include <asm/immap_83xx.h>
#endif
#ifdef CONFIG_4xx
#include <ppc4xx.h>
#endif
#ifdef CONFIG_HYMOD
#include <board/hymod/hymod.h>
#endif
#ifdef CONFIG_ARM
#define asmlinkage /* nothing */
#endif
#ifdef CONFIG_BLACKFIN
#include <asm/blackfin.h>
#endif
#ifdef CONFIG_SOC_DA8XX
#include <asm/arch/hardware.h>
#endif
#include <part.h>
#include <flash.h>
#include <image.h>
#ifdef DEBUG
#define debug(fmt,args...) printf (fmt ,##args)
#define debugX(level,fmt,args...) if (DEBUG>=level) printf(fmt,##args);
#else
#define debug(fmt,args...)
#define debugX(level,fmt,args...)
#endif /* DEBUG */
#define error(fmt, args...) do { \
printf("ERROR: " fmt "\nat %s:%d/%s()\n", \
##args, __FILE__, __LINE__, __func__); \
} while (0)
#ifndef BUG
#define BUG() do { \
printf("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
panic("BUG!"); \
} while (0)
#define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0)
#endif /* BUG */
typedef void (interrupt_handler_t)(void *);
#include <asm/u-boot.h> /* boot information for Linux kernel */
#include <asm/global_data.h> /* global data used for startup functions */
/*
* enable common handling for all TQM8xxL/M boards:
* - CONFIG_TQM8xxM will be defined for all TQM8xxM boards
* - CONFIG_TQM8xxL will be defined for all TQM8xxL _and_ TQM8xxM boards
* and for the TQM885D board
*/
#if defined(CONFIG_TQM823M) || defined(CONFIG_TQM850M) || \
defined(CONFIG_TQM855M) || defined(CONFIG_TQM860M) || \
defined(CONFIG_TQM862M) || defined(CONFIG_TQM866M)
# ifndef CONFIG_TQM8xxM
# define CONFIG_TQM8xxM
# endif
#endif
#if defined(CONFIG_TQM823L) || defined(CONFIG_TQM850L) || \
defined(CONFIG_TQM855L) || defined(CONFIG_TQM860L) || \
defined(CONFIG_TQM862L) || defined(CONFIG_TQM8xxM) || \
defined(CONFIG_TQM885D)
# ifndef CONFIG_TQM8xxL
# define CONFIG_TQM8xxL
# endif
#endif
#ifndef CONFIG_SERIAL_MULTI
#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2) \
|| defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
|| defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
#define CONFIG_SERIAL_MULTI 1
#endif
#endif /* CONFIG_SERIAL_MULTI */
/*
* General Purpose Utilities
*/
#define min(X, Y) \
({ typeof (X) __x = (X), __y = (Y); \
(__x < __y) ? __x : __y; })
#define max(X, Y) \
({ typeof (X) __x = (X), __y = (Y); \
(__x > __y) ? __x : __y; })
#define MIN(x, y) min(x, y)
#define MAX(x, y) max(x, y)
/**
* container_of - cast a member of a structure out to the containing structure
* @ptr: the pointer to the member.
* @type: the type of the container struct this is embedded in.
* @member: the name of the member within the struct.
*
*/
#define container_of(ptr, type, member) ({ \
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
(type *)( (char *)__mptr - offsetof(type,member) );})
/*
* Function Prototypes
*/
#ifdef CONFIG_SERIAL_SOFTWARE_FIFO
void serial_buffered_init (void);
void serial_buffered_putc (const char);
void serial_buffered_puts (const char *);
int serial_buffered_getc (void);
int serial_buffered_tstc (void);
#endif /* CONFIG_SERIAL_SOFTWARE_FIFO */
void hang (void) __attribute__ ((noreturn));
/* */
phys_size_t initdram (int);
int display_options (void);
void print_size(unsigned long long, const char *);
int print_buffer (ulong addr, void* data, uint width, uint count, uint linelen);
/* common/main.c */
void main_loop (void);
int run_command (const char *cmd, int flag);
int readline (const char *const prompt);
int readline_into_buffer (const char *const prompt, char * buffer);
int parse_line (char *, char *[]);
void init_cmd_timeout(void);
void reset_cmd_timeout(void);
/* arch/$(ARCH)/lib/board.c */
void board_init_f (ulong) __attribute__ ((noreturn));
void board_init_r (gd_t *, ulong) __attribute__ ((noreturn));
int checkboard (void);
int checkflash (void);
int checkdram (void);
int last_stage_init(void);
extern ulong monitor_flash_len;
int mac_read_from_eeprom(void);
/* common/flash.c */
void flash_perror (int);
/* common/cmd_source.c */
int source (ulong addr, const char *fit_uname);
extern ulong load_addr; /* Default Load Address */
/* common/cmd_doc.c */
void doc_probe(unsigned long physadr);
/* common/cmd_nvedit.c */
int env_init (void);
void env_relocate (void);
int envmatch (uchar *, int);
char *getenv (char *);
int getenv_f (char *name, char *buf, unsigned len);
int saveenv (void);
#ifdef CONFIG_PPC /* ARM version to be fixed! */
int inline setenv (char *, char *);
#else
int setenv (char *, char *);
#ifdef CONFIG_HAS_UID
void forceenv (char *, char *);
#endif
#endif /* CONFIG_PPC */
#ifdef CONFIG_ARM
# include <asm/mach-types.h>
# include <asm/setup.h>
# include <asm/u-boot-arm.h> /* ARM version to be fixed! */
#endif /* CONFIG_ARM */
#ifdef CONFIG_I386 /* x86 version to be fixed! */
# include <asm/u-boot-i386.h>
#endif /* CONFIG_I386 */
#ifdef CONFIG_AUTO_COMPLETE
int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf);
#endif
int get_env_id (void);
void pci_init (void);
void pci_init_board(void);
void pciinfo (int, int);
#if defined(CONFIG_PCI) && (defined(CONFIG_4xx) && !defined(CONFIG_AP1000))
int pci_pre_init (struct pci_controller *);
int is_pci_host (struct pci_controller *);
#endif
#if defined(CONFIG_PCI) && (defined(CONFIG_440) || defined(CONFIG_405EX))
# if defined(CONFIG_SYS_PCI_TARGET_INIT)
void pci_target_init (struct pci_controller *);
# endif
# if defined(CONFIG_SYS_PCI_MASTER_INIT)
void pci_master_init (struct pci_controller *);
# endif
#if defined(CONFIG_440SPE) || \
defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
defined(CONFIG_405EX)
void pcie_setup_hoses(int busno);
#endif
#endif
int misc_init_f (void);
int misc_init_r (void);
/* common/exports.c */
void jumptable_init(void);
/* common/kallsysm.c */
const char *symbol_lookup(unsigned long addr, unsigned long *caddr);
/* api/api.c */
void api_init (void);
/* common/memsize.c */
long get_ram_size (volatile long *, long);
/* $(BOARD)/$(BOARD).c */
void reset_phy (void);
void fdc_hw_init (void);
/* $(BOARD)/eeprom.c */
void eeprom_init (void);
#ifndef CONFIG_SPI
int eeprom_probe (unsigned dev_addr, unsigned offset);
#endif
int eeprom_read (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
int eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
#ifdef CONFIG_LWMON
extern uchar pic_read (uchar reg);
extern void pic_write (uchar reg, uchar val);
#endif
/*
* Set this up regardless of board
* type, to prevent errors.
*/
#if defined(CONFIG_SPI) || !defined(CONFIG_SYS_I2C_EEPROM_ADDR)
# define CONFIG_SYS_DEF_EEPROM_ADDR 0
#else
#if !defined(CONFIG_ENV_EEPROM_IS_ON_I2C)
# define CONFIG_SYS_DEF_EEPROM_ADDR CONFIG_SYS_I2C_EEPROM_ADDR
#endif
#endif /* CONFIG_SPI || !defined(CONFIG_SYS_I2C_EEPROM_ADDR) */
#if defined(CONFIG_SPI)
extern void spi_init_f (void);
extern void spi_init_r (void);
extern ssize_t spi_read (uchar *, int, uchar *, int);
extern ssize_t spi_write (uchar *, int, uchar *, int);
#endif
#ifdef CONFIG_RPXCLASSIC
void rpxclassic_init (void);
#endif
void rpxlite_init (void);
#ifdef CONFIG_MBX
/* $(BOARD)/mbx8xx.c */
void mbx_init (void);
void board_serial_init (void);
void board_ether_init (void);
#endif
#ifdef CONFIG_HERMES
/* $(BOARD)/hermes.c */
void hermes_start_lxt980 (int speed);
#endif
#ifdef CONFIG_EVB64260
void evb64260_init(void);
void debug_led(int, int);
void display_mem_map(void);
void perform_soft_reset(void);
#endif
/* $(BOARD)/$(BOARD).c */
int board_early_init_f (void);
int board_late_init (void);
int board_postclk_init (void); /* after clocks/timebase, before env/serial */
int board_early_init_r (void);
void board_poweroff (void);
#if defined(CONFIG_SYS_DRAM_TEST)
int testdram(void);
#endif /* CONFIG_SYS_DRAM_TEST */
/* $(CPU)/start.S */
#if defined(CONFIG_5xx) || \
defined(CONFIG_8xx)
uint get_immr (uint);
#endif
uint get_pir (void);
#if defined(CONFIG_MPC5xxx)
uint get_svr (void);
#endif
uint get_pvr (void);
uint get_svr (void);
uint rd_ic_cst (void);
void wr_ic_cst (uint);
void wr_ic_adr (uint);
uint rd_dc_cst (void);
void wr_dc_cst (uint);
void wr_dc_adr (uint);
int icache_status (void);
void icache_enable (void);
void icache_disable(void);
int dcache_status (void);
void dcache_enable (void);
void dcache_disable(void);
void relocate_code (ulong, gd_t *, ulong) __attribute__ ((noreturn));
ulong get_endaddr (void);
void trap_init (ulong);
#if defined (CONFIG_4xx) || \
defined (CONFIG_MPC5xxx) || \
defined (CONFIG_74xx_7xx) || \
defined (CONFIG_74x) || \
defined (CONFIG_75x) || \
defined (CONFIG_74xx) || \
defined (CONFIG_MPC8220) || \
defined (CONFIG_MPC85xx) || \
defined (CONFIG_MPC86xx) || \
defined (CONFIG_MPC83xx)
unsigned char in8(unsigned int);
void out8(unsigned int, unsigned char);
unsigned short in16(unsigned int);
unsigned short in16r(unsigned int);
void out16(unsigned int, unsigned short value);
void out16r(unsigned int, unsigned short value);
unsigned long in32(unsigned int);
unsigned long in32r(unsigned int);
void out32(unsigned int, unsigned long value);
void out32r(unsigned int, unsigned long value);
void ppcDcbf(unsigned long value);
void ppcDcbi(unsigned long value);
void ppcSync(void);
void ppcDcbz(unsigned long value);
#endif
#if defined (CONFIG_MICROBLAZE)
unsigned short in16(unsigned int);
void out16(unsigned int, unsigned short value);
#endif
#if defined (CONFIG_MPC83xx)
void ppcDWload(unsigned int *addr, unsigned int *ret);
void ppcDWstore(unsigned int *addr, unsigned int *value);
#endif
/* $(CPU)/cpu.c */
int cpu_numcores (void);
int probecpu (void);
int checkcpu (void);
int checkicache (void);
int checkdcache (void);
void upmconfig (unsigned int, unsigned int *, unsigned int);
ulong get_tbclk (void);
void reset_cpu (ulong addr);
#if defined (CONFIG_OF_LIBFDT) && defined (CONFIG_OF_BOARD_SETUP)
void ft_cpu_setup(void *blob, bd_t *bd);
#ifdef CONFIG_PCI
void ft_pci_setup(void *blob, bd_t *bd);
#endif
#endif
/* $(CPU)/serial.c */
int serial_init (void);
void serial_exit (void);
void serial_setbrg (void);
void serial_putc (const char);
void serial_putc_raw(const char);
void serial_puts (const char *);
int serial_getc (void);
int serial_tstc (void);
void _serial_setbrg (const int);
void _serial_putc (const char, const int);
void _serial_putc_raw(const char, const int);
void _serial_puts (const char *, const int);
int _serial_getc (const int);
int _serial_tstc (const int);
/* $(CPU)/speed.c */
int get_clocks (void);
int get_clocks_866 (void);
int sdram_adjust_866 (void);
int adjust_sdram_tbs_8xx (void);
#if defined(CONFIG_8260)
int prt_8260_clks (void);
#elif defined(CONFIG_MPC5xxx)
int prt_mpc5xxx_clks (void);
#endif
#if defined(CONFIG_MPC512X)
int prt_mpc512xxx_clks (void);
#endif
#if defined(CONFIG_MPC8220)
int prt_mpc8220_clks (void);
#endif
#ifdef CONFIG_4xx
ulong get_OPB_freq (void);
ulong get_PCI_freq (void);
#endif
#if defined(CONFIG_S3C24X0) || \
defined(CONFIG_LH7A40X) || \
defined(CONFIG_S3C6400) || \
defined(CONFIG_EP93XX)
ulong get_FCLK (void);
ulong get_HCLK (void);
ulong get_PCLK (void);
ulong get_UCLK (void);
#endif
#if defined(CONFIG_LH7A40X)
ulong get_PLLCLK (void);
#endif
#if defined CONFIG_INCA_IP
uint incaip_get_cpuclk (void);
#endif
#if defined(CONFIG_IMX)
ulong get_systemPLLCLK(void);
ulong get_FCLK(void);
ulong get_HCLK(void);
ulong get_BCLK(void);
ulong get_PERCLK1(void);
ulong get_PERCLK2(void);
ulong get_PERCLK3(void);
#endif
ulong get_bus_freq (ulong);
#if defined(CONFIG_MPC85xx)
typedef MPC85xx_SYS_INFO sys_info_t;
void get_sys_info ( sys_info_t * );
ulong get_ddr_freq (ulong);
#endif
#if defined(CONFIG_MPC86xx)
typedef MPC86xx_SYS_INFO sys_info_t;
void get_sys_info ( sys_info_t * );
#endif
#if defined(CONFIG_4xx) || defined(CONFIG_IOP480)
# if defined(CONFIG_440)
# if defined(CONFIG_440SPE)
unsigned long determine_sysper(void);
unsigned long determine_pci_clock_per(void);
# endif
# endif
typedef PPC4xx_SYS_INFO sys_info_t;
int ppc440spe_revB(void);
void get_sys_info ( sys_info_t * );
#endif
/* $(CPU)/cpu_init.c */
#if defined(CONFIG_8xx) || defined(CONFIG_8260)
void cpu_init_f (volatile immap_t *immr);
#endif
#if defined(CONFIG_4xx) || defined(CONFIG_MPC85xx) || defined(CONFIG_MCF52x2) ||defined(CONFIG_MPC86xx)
void cpu_init_f (void);
#endif
int cpu_init_r (void);
#if defined(CONFIG_8260)
int prt_8260_rsr (void);
#elif defined(CONFIG_MPC83xx)
int prt_83xx_rsr (void);
#endif
/* $(CPU)/interrupts.c */
int interrupt_init (void);
void timer_interrupt (struct pt_regs *);
void external_interrupt (struct pt_regs *);
void irq_install_handler(int, interrupt_handler_t *, void *);
void irq_free_handler (int);
void reset_timer (void);
ulong get_timer (ulong base);
void set_timer (ulong t);
void enable_interrupts (void);
int disable_interrupts (void);
/* $(CPU)/.../commproc.c */
int dpram_init (void);
uint dpram_base(void);
uint dpram_base_align(uint align);
uint dpram_alloc(uint size);
uint dpram_alloc_align(uint size,uint align);
void bootcount_store (ulong);
ulong bootcount_load (void);
#define BOOTCOUNT_MAGIC 0xB001C041
/* $(CPU)/.../<eth> */
void mii_init (void);
/* $(CPU)/.../lcd.c */
ulong lcd_setmem (ulong);
/* $(CPU)/.../vfd.c */
ulong vfd_setmem (ulong);
/* $(CPU)/.../video.c */
ulong video_setmem (ulong);
/* arch/$(ARCH)/lib/cache.c */
void flush_cache (unsigned long, unsigned long);
void flush_dcache_range(unsigned long start, unsigned long stop);
void invalidate_dcache_range(unsigned long start, unsigned long stop);
/* arch/$(ARCH)/lib/ticks.S */
unsigned long long get_ticks(void);
void wait_ticks (unsigned long);
/* arch/$(ARCH)/lib/time.c */
void __udelay (unsigned long);
ulong usec2ticks (unsigned long usec);
ulong ticks2usec (unsigned long ticks);
int init_timebase (void);
/* lib/gunzip.c */
int gunzip(void *, int, unsigned char *, unsigned long *);
int zunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp,
int stoponerr, int offset);
/* lib/net_utils.c */
#include <net.h>
static inline IPaddr_t getenv_IPaddr (char *var)
{
return (string_to_ip(getenv(var)));
}
/* lib/time.c */
void udelay (unsigned long);
/* lib/vsprintf.c */
ulong simple_strtoul(const char *cp,char **endp,unsigned int base);
unsigned long long simple_strtoull(const char *cp,char **endp,unsigned int base);
long simple_strtol(const char *cp,char **endp,unsigned int base);
void panic(const char *fmt, ...)
__attribute__ ((format (__printf__, 1, 2)));
int sprintf(char * buf, const char *fmt, ...)
__attribute__ ((format (__printf__, 2, 3)));
int vsprintf(char *buf, const char *fmt, va_list args);
/* lib/strmhz.c */
char * strmhz(char *buf, long hz);
/* lib/crc32.c */
#include <u-boot/crc.h>
/* common/console.c */
int console_init_f(void); /* Before relocation; uses the serial stuff */
int console_init_r(void); /* After relocation; uses the console stuff */
int console_assign (int file, char *devname); /* Assign the console */
int ctrlc (void);
int had_ctrlc (void); /* have we had a Control-C since last clear? */
void clear_ctrlc (void); /* clear the Control-C condition */
int disable_ctrlc (int); /* 1 to disable, 0 to enable Control-C detect */
/*
* STDIO based functions (can always be used)
*/
/* serial stuff */
int serial_printf (const char *fmt, ...)
__attribute__ ((format (__printf__, 1, 2)));
/* stdin */
int getc(void);
int tstc(void);
/* stdout */
void putc(const char c);
void puts(const char *s);
int printf(const char *fmt, ...)
__attribute__ ((format (__printf__, 1, 2)));
int vprintf(const char *fmt, va_list args);
/* stderr */
#define eputc(c) fputc(stderr, c)
#define eputs(s) fputs(stderr, s)
#define eprintf(fmt,args...) fprintf(stderr,fmt ,##args)
/*
* FILE based functions (can only be used AFTER relocation!)
*/
#define stdin 0
#define stdout 1
#define stderr 2
#define MAX_FILES 3
int fprintf(int file, const char *fmt, ...)
__attribute__ ((format (__printf__, 2, 3)));
void fputs(int file, const char *s);
void fputc(int file, const char c);
int ftstc(int file);
int fgetc(int file);
/*
* CONSOLE multiplexing.
*/
#ifdef CONFIG_CONSOLE_MUX
#include <iomux.h>
#endif
int pcmcia_init (void);
#ifdef CONFIG_STATUS_LED
# include <status_led.h>
#endif
/*
* Board-specific Platform code can reimplement show_boot_progress () if needed
*/
void show_boot_progress(int val);
/* Multicore arch functions */
#ifdef CONFIG_MP
int cpu_status(int nr);
int cpu_reset(int nr);
int cpu_disable(int nr);
int cpu_release(int nr, int argc, char * const argv[]);
#endif
#endif /* __ASSEMBLY__ */
/* Put only stuff here that the assembler can digest */
#ifdef CONFIG_POST
#define CONFIG_HAS_POST
#ifndef CONFIG_POST_ALT_LIST
#define CONFIG_POST_STD_LIST
#endif
#endif
#ifdef CONFIG_INIT_CRITICAL
#error CONFIG_INIT_CRITICAL is deprecated!
#error Read section CONFIG_SKIP_LOWLEVEL_INIT in README.
#endif
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#define ROUND(a,b) (((a) + (b)) & ~((b) - 1))
#define DIV_ROUND(n,d) (((n) + ((d)/2)) / (d))
#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
#define ALIGN(x,a) __ALIGN_MASK((x),(typeof(x))(a)-1)
#define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask))
#endif /* __COMMON_H_ */