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< div class = "header" >
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< a href = "#define-members" > Macros< / a > |
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< a href = "#func-members" > Functions< / a > < / div >
< div class = "headertitle" >
< div class = "title" > paging.h File Reference< / div > < / div >
< / div > <!-- header -->
< div class = "contents" >
< p > < a href = "paging_8h_source.html" > Go to the source code of this file.< / a > < / p >
< table class = "memberdecls" >
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< tr class = "heading" > < td colspan = "2" > < h2 class = "groupheader" > < a name = "define-members" > < / a >
Macros< / h2 > < / td > < / tr >
< tr class = "memitem:a7e912ae10cea398cf910621105ba481c" > < td class = "memItemLeft" align = "right" valign = "top" > #define  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "paging_8h.html#a7e912ae10cea398cf910621105ba481c" > RUN_IN_ADDRESS_SPACE< / a > (addr_space, codeblock)< / td > < / tr >
< tr class = "separator:a7e912ae10cea398cf910621105ba481c" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< / table > < table class = "memberdecls" >
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< tr class = "heading" > < td colspan = "2" > < h2 class = "groupheader" > < a name = "func-members" > < / a >
Functions< / h2 > < / td > < / tr >
< tr class = "memitem:a2370886c08cc1b84fa1d81fc8022db9b" > < td class = "memItemLeft" align = "right" valign = "top" > void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "paging_8h.html#a2370886c08cc1b84fa1d81fc8022db9b" > map_pages< / a > (void *virt_addr_ptr, void *phys_addr_ptr, int num_pages, char usr, char wr)< / td > < / tr >
< tr class = "separator:a2370886c08cc1b84fa1d81fc8022db9b" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:a8c15ffa3d18088ca41f78d5c632f6b02" > < td class = "memItemLeft" align = "right" valign = "top" > void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "paging_8h.html#a8c15ffa3d18088ca41f78d5c632f6b02" > unmap_pages< / a > (void *start_virt, int num_pages)< / td > < / tr >
< tr class = "separator:a8c15ffa3d18088ca41f78d5c632f6b02" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:a64db1d6c4d8861128d9e6e7f671213d8" > < td class = "memItemLeft" align = "right" valign = "top" > void *  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "paging_8h.html#a64db1d6c4d8861128d9e6e7f671213d8" > alloc_pages< / a > (int num_pages)< / td > < / tr >
< tr class = "separator:a64db1d6c4d8861128d9e6e7f671213d8" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:a0f831aadf41672c296645a7b0df4a5c6" > < td class = "memItemLeft" align = "right" valign = "top" > void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "paging_8h.html#a0f831aadf41672c296645a7b0df4a5c6" > alloc_pages_virt< / a > (int num_pages, void *addr)< / td > < / tr >
< tr class = "separator:a0f831aadf41672c296645a7b0df4a5c6" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< tr class = "memitem:a6acaea424d9bee06bf95ceb299d75a11" > < td class = "memItemLeft" align = "right" valign = "top" > void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "paging_8h.html#a6acaea424d9bee06bf95ceb299d75a11" > dealloc_pages< / a > (int num_pages, void *addr)< / td > < / tr >
< tr class = "separator:a6acaea424d9bee06bf95ceb299d75a11" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< tr class = "memitem:a569adfd13ea3c63741f64108821b1712" > < td class = "memItemLeft" align = "right" valign = "top" > void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "paging_8h.html#a569adfd13ea3c63741f64108821b1712" > paging_init< / a > ()< / td > < / tr >
< tr class = "separator:a569adfd13ea3c63741f64108821b1712" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:a8b1cb213f5783b7137f40279db762ffc" > < td class = "memItemLeft" align = "right" valign = "top" > void *  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "paging_8h.html#a8b1cb213f5783b7137f40279db762ffc" > paging_new_address_space< / a > ()< / td > < / tr >
< tr class = "separator:a8b1cb213f5783b7137f40279db762ffc" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< tr class = "memitem:aee63ef1cb665a5aa68a15ab2461d20cd" > < td class = "memItemLeft" align = "right" valign = "top" > void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "paging_8h.html#aee63ef1cb665a5aa68a15ab2461d20cd" > load_address_space< / a > (void *address_space)< / td > < / tr >
< tr class = "separator:aee63ef1cb665a5aa68a15ab2461d20cd" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< tr class = "memitem:af473eee5243c70174a1245d70a5c16fa" > < td class = "memItemLeft" align = "right" valign = "top" > void *  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "paging_8h.html#af473eee5243c70174a1245d70a5c16fa" > virt_to_phys< / a > (void *virt_addr)< / td > < / tr >
< tr class = "separator:af473eee5243c70174a1245d70a5c16fa" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:a1675ea0f8e4994b4fbbbe3984ca522b1" > < td class = "memItemLeft" align = "right" valign = "top" > void *  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "paging_8h.html#a1675ea0f8e4994b4fbbbe3984ca522b1" > find_free_pages< / a > (int num_pages)< / td > < / tr >
< tr class = "separator:a1675ea0f8e4994b4fbbbe3984ca522b1" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< tr class = "memitem:a7554d075a99f52e3303d1ffd90d8c166" > < td class = "memItemLeft" align = "right" valign = "top" > void *  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "paging_8h.html#a7554d075a99f52e3303d1ffd90d8c166" > get_address_space< / a > ()< / td > < / tr >
< tr class = "separator:a7554d075a99f52e3303d1ffd90d8c166" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< / table >
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< h2 class = "groupheader" > Macro Definition Documentation< / h2 >
< a id = "a7e912ae10cea398cf910621105ba481c" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#a7e912ae10cea398cf910621105ba481c" > ◆ < / a > < / span > RUN_IN_ADDRESS_SPACE< / h2 >
< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > #define RUN_IN_ADDRESS_SPACE< / td >
< td > (< / td >
< td class = "paramtype" >   < / td >
< td class = "paramname" > addr_space, < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" >   < / td >
< td class = "paramname" > codeblock  < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< b > Value:< / b > < div class = "fragment" > < div class = "line" > < span class = "keywordflow" > do< / span > { \< / div >
< div class = "line" > void* old_address_space=< a class = "code" href = "paging_8h.html#a7554d075a99f52e3303d1ffd90d8c166" > get_address_space< / a > (); \< / div >
< div class = "line" > load_address_space(addr_space); \< / div >
< div class = "line" > codeblock; \< / div >
< div class = "line" > load_address_space(old_address_space); \< / div >
< div class = "line" > } < span class = "keywordflow" > while< / span > (0);< / div >
< / div > <!-- fragment --> < p > Run a block of code in a different address space < / p > < dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramname" > addr_space< / td > < td > the address space to use < / td > < / tr >
< tr > < td class = "paramname" > codeblock< / td > < td > the block of code to run < / td > < / tr >
< / table >
< / dd >
< / dl >
< / div >
< / div >
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< h2 class = "groupheader" > Function Documentation< / h2 >
< a id = "a64db1d6c4d8861128d9e6e7f671213d8" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#a64db1d6c4d8861128d9e6e7f671213d8" > ◆ < / a > < / span > alloc_pages()< / h2 >
< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > void* alloc_pages < / td >
< td > (< / td >
< td class = "paramtype" > int  < / td >
< td class = "paramname" > < em > num_pages< / em > < / td > < td > )< / td >
< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
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< p > Allocate virtual pages & map them to newly allocated physical memory. < / p > < dl class = "params" > < dt > Parameters< / dt > < dd >
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< table class = "params" >
< tr > < td class = "paramname" > num_pages< / td > < td > The number of pages to allocate. < / td > < / tr >
< / table >
< / dd >
< / dl >
< dl class = "section return" > < dt > Returns< / dt > < dd > a pointer to the allocated pages. < / dd > < / dl >
< / div >
< / div >
< a id = "a0f831aadf41672c296645a7b0df4a5c6" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#a0f831aadf41672c296645a7b0df4a5c6" > ◆ < / a > < / span > alloc_pages_virt()< / h2 >
< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > void alloc_pages_virt < / td >
< td > (< / td >
< td class = "paramtype" > int  < / td >
< td class = "paramname" > < em > num_pages< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > void *  < / td >
< td class = "paramname" > < em > addr< / em >   < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
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< p > Allocate virtual pages at a specific address & map them to newly allocated physical memory. < / p > < dl class = "params" > < dt > Parameters< / dt > < dd >
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< table class = "params" >
< tr > < td class = "paramname" > num_pages< / td > < td > The number of pages to allocate. < / td > < / tr >
< tr > < td class = "paramname" > addr< / td > < td > The adress to start allocation at. < / td > < / tr >
< / table >
< / dd >
< / dl >
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< / div >
< / div >
< a id = "a6acaea424d9bee06bf95ceb299d75a11" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#a6acaea424d9bee06bf95ceb299d75a11" > ◆ < / a > < / span > dealloc_pages()< / h2 >
< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > void dealloc_pages < / td >
< td > (< / td >
< td class = "paramtype" > int  < / td >
< td class = "paramname" > < em > num_pages< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > void *  < / td >
< td class = "paramname" > < em > addr< / em >   < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > Deallocate the physical memory for pages and unmap them < / p > < dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramname" > num_pages< / td > < td > The number of pages to deallocate. < / td > < / tr >
< tr > < td class = "paramname" > addr< / td > < td > The adress to start deallocation at. < / td > < / tr >
< / table >
< / dd >
< / dl >
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< / div >
< / div >
< a id = "a1675ea0f8e4994b4fbbbe3984ca522b1" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#a1675ea0f8e4994b4fbbbe3984ca522b1" > ◆ < / a > < / span > find_free_pages()< / h2 >
< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > void* find_free_pages < / td >
< td > (< / td >
< td class = "paramtype" > int  < / td >
< td class = "paramname" > < em > num_pages< / em > < / td > < td > )< / td >
< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > Finds free virtual pages and returns the start address < / p > < dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramname" > num_pages< / td > < td > The minimum size of the free area < / td > < / tr >
< / table >
< / dd >
< / dl >
< dl class = "section return" > < dt > Returns< / dt > < dd > the start of the free area < / dd > < / dl >
< / div >
< / div >
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< a id = "a7554d075a99f52e3303d1ffd90d8c166" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#a7554d075a99f52e3303d1ffd90d8c166" > ◆ < / a > < / span > get_address_space()< / h2 >
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< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
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< td class = "memname" > void* get_address_space < / td >
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< td > (< / td >
< td class = "paramname" > < / td > < td > )< / td >
< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > Get the current address space < / p > < dl class = "section return" > < dt > Returns< / dt > < dd > a pointer to the current address space in physical memory. < / dd > < / dl >
< / div >
< / div >
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< a id = "aee63ef1cb665a5aa68a15ab2461d20cd" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#aee63ef1cb665a5aa68a15ab2461d20cd" > ◆ < / a > < / span > load_address_space()< / h2 >
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< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > void load_address_space < / td >
< td > (< / td >
< td class = "paramtype" > void *  < / td >
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< td class = "paramname" > < em > address_space< / em > < / td > < td > )< / td >
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< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > Load an address space < / p > < dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
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< tr > < td class = "paramname" > address_space< / td > < td > The address space to load < / td > < / tr >
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< / table >
< / dd >
< / dl >
< / div >
< / div >
< a id = "a2370886c08cc1b84fa1d81fc8022db9b" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#a2370886c08cc1b84fa1d81fc8022db9b" > ◆ < / a > < / span > map_pages()< / h2 >
< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > void map_pages < / td >
< td > (< / td >
< td class = "paramtype" > void *  < / td >
< td class = "paramname" > < em > virt_addr_ptr< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > void *  < / td >
< td class = "paramname" > < em > phys_addr_ptr< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > int  < / td >
< td class = "paramname" > < em > num_pages< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > char  < / td >
< td class = "paramname" > < em > usr< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > char  < / td >
< td class = "paramname" > < em > wr< / em >   < / td >
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< td > )< / td >
< td > < / td > < td > < / td >
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< p > Map virtual pages to physical frames. < / p > < dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramname" > virt_addr_ptr< / td > < td > The start of the virtual range to map. < / td > < / tr >
< tr > < td class = "paramname" > phys_addr_ptr< / td > < td > The start of the physical range to map. < / td > < / tr >
< tr > < td class = "paramname" > num_pages< / td > < td > The number of pages to map. < / td > < / tr >
< tr > < td class = "paramname" > usr< / td > < td > Are the pages acessible by user mode code < / td > < / tr >
< tr > < td class = "paramname" > wr< / td > < td > Are the pages writable by user mode code (kernel always has write permissions) < / td > < / tr >
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< / dd >
< / dl >
< / div >
< / div >
< a id = "a569adfd13ea3c63741f64108821b1712" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#a569adfd13ea3c63741f64108821b1712" > ◆ < / a > < / span > paging_init()< / h2 >
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< div class = "memproto" >
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< td class = "memname" > void paging_init < / td >
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< td class = "paramname" > < / td > < td > )< / td >
< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > Initialize paging < / p >
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< a id = "a8b1cb213f5783b7137f40279db762ffc" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#a8b1cb213f5783b7137f40279db762ffc" > ◆ < / a > < / span > paging_new_address_space()< / h2 >
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< td class = "memname" > void* paging_new_address_space < / td >
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< td class = "paramname" > < / td > < td > )< / td >
< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > Create a new address space < / p > < dl class = "section return" > < dt > Returns< / dt > < dd > a pointer to the new address space in physical memory. < / dd > < / dl >
< / div >
< / div >
< a id = "a8c15ffa3d18088ca41f78d5c632f6b02" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#a8c15ffa3d18088ca41f78d5c632f6b02" > ◆ < / a > < / span > unmap_pages()< / h2 >
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< table class = "memname" >
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< td class = "memname" > void unmap_pages < / td >
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< td class = "paramname" > < em > start_virt< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > int  < / td >
< td class = "paramname" > < em > num_pages< / em >   < / td >
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< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
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< / div > < div class = "memdoc" >
< p > Unmap virtual pages, < / p > < dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramname" > start_virt< / td > < td > The start of the virtual range to unmap. < / td > < / tr >
< tr > < td class = "paramname" > num_pages< / td > < td > The number of pages to map. < / td > < / tr >
< / table >
< / dd >
< / dl >
< / div >
< / div >
< a id = "af473eee5243c70174a1245d70a5c16fa" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#af473eee5243c70174a1245d70a5c16fa" > ◆ < / a > < / span > virt_to_phys()< / h2 >
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< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > void* virt_to_phys < / td >
< td > (< / td >
< td class = "paramtype" > void *  < / td >
< td class = "paramname" > < em > virt_addr< / em > < / td > < td > )< / td >
< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > Convert a virtual address to a physical one. < / p > < dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramname" > virt_addr< / td > < td > The virtual address to convert < / td > < / tr >
< / table >
< / dd >
< / dl >
< dl class = "section return" > < dt > Returns< / dt > < dd > the physical adress it maps to, or NULL if it is not mapped. < / dd > < / dl >
< / div >
< / div >
< / div > <!-- contents -->
< / div > <!-- doc - content -->
2020-07-29 14:00:21 +00:00
< div class = "ttc" id = "apaging_8h_html_a7554d075a99f52e3303d1ffd90d8c166" > < div class = "ttname" > < a href = "paging_8h.html#a7554d075a99f52e3303d1ffd90d8c166" > get_address_space< / a > < / div > < div class = "ttdeci" > void * get_address_space()< / div > < div class = "ttdef" > < b > Definition:< / b > paging.c:210< / div > < / div >
2020-07-25 23:50:03 +00:00
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