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| System | : | Linux MiraNet 3.0.0-14-generic-pae #23-Ubuntu SMP Mon Nov 21 22:07:10 UTC 2011 i686 |
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Disabled Functions: pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,
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/
usr/
src/
linux-headers-3.0.0-14/
arch/
score/
include/
asm/
- drwxr-xr-x
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Viewing file:  fixmap.h (2.34 KB) -rw-r--r--Select action/file-type:  ( +) |  ( +) |  ( +) | Code ( +) | Session ( +) |  ( +) | SDB ( +) |  ( +) |  ( +) |  ( +) |  ( +) |  ( +) |
#ifndef _ASM_SCORE_FIXMAP_H
#define _ASM_SCORE_FIXMAP_H
#include <asm/page.h>
#define PHY_RAM_BASE 0x00000000
#define PHY_IO_BASE 0x10000000
#define VIRTUAL_RAM_BASE 0xa0000000
#define VIRTUAL_IO_BASE 0xb0000000
#define RAM_SPACE_SIZE 0x10000000
#define IO_SPACE_SIZE 0x10000000
/* Kernel unmapped, cached 512MB */
#define KSEG1 0xa0000000
/*
* Here we define all the compile-time 'special' virtual
* addresses. The point is to have a constant address at
* compile time, but to set the physical address only
* in the boot process. We allocate these special addresses
* from the end of virtual memory (0xfffff000) backwards.
* Also this lets us do fail-safe vmalloc(), we
* can guarantee that these special addresses and
* vmalloc()-ed addresses never overlap.
*
* these 'compile-time allocated' memory buffers are
* fixed-size 4k pages. (or larger if used with an increment
* highger than 1) use fixmap_set(idx,phys) to associate
* physical memory with fixmap indices.
*
* TLB entries of such buffers will not be flushed across
* task switches.
*/
/*
* on UP currently we will have no trace of the fixmap mechanizm,
* no page table allocations, etc. This might change in the
* future, say framebuffers for the console driver(s) could be
* fix-mapped?
*/
enum fixed_addresses {
#define FIX_N_COLOURS 8
FIX_CMAP_BEGIN,
FIX_CMAP_END = FIX_CMAP_BEGIN + FIX_N_COLOURS,
__end_of_fixed_addresses
};
/*
* used by vmalloc.c.
*
* Leave one empty page between vmalloc'ed areas and
* the start of the fixmap, and leave one page empty
* at the top of mem..
*/
#define FIXADDR_TOP ((unsigned long)(long)(int)0xfefe0000)
#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
#define __virt_to_fix(x) \
((FIXADDR_TOP - ((x) & PAGE_MASK)) >> PAGE_SHIFT)
extern void __this_fixmap_does_not_exist(void);
/*
* 'index to address' translation. If anyone tries to use the idx
* directly without tranlation, we catch the bug with a NULL-deference
* kernel oops. Illegal ranges of incoming indices are caught too.
*/
static inline unsigned long fix_to_virt(const unsigned int idx)
{
return __fix_to_virt(idx);
}
static inline unsigned long virt_to_fix(const unsigned long vaddr)
{
return __virt_to_fix(vaddr);
}
#endif /* _ASM_SCORE_FIXMAP_H */
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