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<type>struct <ref refid="structspinLock" kindref="compound">spinLock</ref></type>
<definition>struct spinLock fvpSpinLock</definition>
<argsstring></argsstring>
<name>fvpSpinLock</name>
<initializer>= <ref refid="spinlock_8h_1a0fe85a4f3642683148b25916d6c5eafd" kindref="member">SPIN_LOCK_INITIALIZER</ref></initializer>
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<type>void *</type>
<definition>void* vmm_getFreeVirtualPage</definition>
<argsstring>(pidType pid, int count, int type)</argsstring>
<name>vmm_getFreeVirtualPage</name>
<param>
<type><ref refid="include_2sys_2types_8h_1ae438ba74394b14d7b24b6df3b3b8c252" kindref="member">pidType</ref></type>
<declname>pid</declname>
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<param>
<type>int</type>
<declname>count</declname>
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<param>
<type>int</type>
<declname>type</declname>
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<references refid="armv6_2spinlock_8c_1a71f03d2ba55111c715b6068254847a53" compoundref="armv6_2spinlock_8c" startline="55" endline="61">spinLock</references>
<referencedby refid="vmm__mmap_8c_1a34f95e2ffa8a4bb4ca88918a3a3af580" compoundref="vmm__mmap_8c" startline="162" endline="220">sys_mmap</referencedby>
<referencedby refid="kernel_2syscall_8c_1aa023f30aed656a766f6aca5d9eeb5f46" compoundref="kernel_2syscall_8c" startline="179" endline="184">sysGetFreePage</referencedby>
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<codeline lineno="1"><highlight class="normal"><sp/></highlight><highlight class="comment">/*-</highlight></codeline>
<codeline lineno="2"><highlight class="comment"><sp/>*<sp/>Copyright<sp/>(c)<sp/>2002-2018<sp/>The<sp/>UbixOS<sp/>Project.</highlight></codeline>
<codeline lineno="3"><highlight class="comment"><sp/>*<sp/>All<sp/>rights<sp/>reserved.</highlight></codeline>
<codeline lineno="4"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="5"><highlight class="comment"><sp/>*<sp/>This<sp/>was<sp/>developed<sp/>by<sp/>Christopher<sp/>W.<sp/>Olsen<sp/>for<sp/>the<sp/>UbixOS<sp/>Project.</highlight></codeline>
<codeline lineno="6"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="7"><highlight class="comment"><sp/>*<sp/>Redistribution<sp/>and<sp/>use<sp/>in<sp/>source<sp/>and<sp/>binary<sp/>forms,<sp/>with<sp/>or<sp/>without<sp/>modification,<sp/>are<sp/>permitted</highlight></codeline>
<codeline lineno="8"><highlight class="comment"><sp/>*<sp/>provided<sp/>that<sp/>the<sp/>following<sp/>conditions<sp/>are<sp/>met:</highlight></codeline>
<codeline lineno="9"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="10"><highlight class="comment"><sp/>*<sp/>1)<sp/>Redistributions<sp/>of<sp/>source<sp/>code<sp/>must<sp/>retain<sp/>the<sp/>above<sp/>copyright<sp/>notice,<sp/>this<sp/>list<sp/>of</highlight></codeline>
<codeline lineno="11"><highlight class="comment"><sp/>*<sp/><sp/><sp/><sp/>conditions,<sp/>the<sp/>following<sp/>disclaimer<sp/>and<sp/>the<sp/>list<sp/>of<sp/>authors.</highlight></codeline>
<codeline lineno="12"><highlight class="comment"><sp/>*<sp/>2)<sp/>Redistributions<sp/>in<sp/>binary<sp/>form<sp/>must<sp/>reproduce<sp/>the<sp/>above<sp/>copyright<sp/>notice,<sp/>this<sp/>list<sp/>of</highlight></codeline>
<codeline lineno="13"><highlight class="comment"><sp/>*<sp/><sp/><sp/><sp/>conditions,<sp/>the<sp/>following<sp/>disclaimer<sp/>and<sp/>the<sp/>list<sp/>of<sp/>authors<sp/>in<sp/>the<sp/>documentation<sp/>and/or</highlight></codeline>
<codeline lineno="14"><highlight class="comment"><sp/>*<sp/><sp/><sp/><sp/>other<sp/>materials<sp/>provided<sp/>with<sp/>the<sp/>distribution.</highlight></codeline>
<codeline lineno="15"><highlight class="comment"><sp/>*<sp/>3)<sp/>Neither<sp/>the<sp/>name<sp/>of<sp/>the<sp/>UbixOS<sp/>Project<sp/>nor<sp/>the<sp/>names<sp/>of<sp/>its<sp/>contributors<sp/>may<sp/>be<sp/>used<sp/>to</highlight></codeline>
<codeline lineno="16"><highlight class="comment"><sp/>*<sp/><sp/><sp/><sp/>endorse<sp/>or<sp/>promote<sp/>products<sp/>derived<sp/>from<sp/>this<sp/>software<sp/>without<sp/>specific<sp/>prior<sp/>written</highlight></codeline>
<codeline lineno="17"><highlight class="comment"><sp/>*<sp/><sp/><sp/><sp/>permission.</highlight></codeline>
<codeline lineno="18"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="19"><highlight class="comment"><sp/>*<sp/>THIS<sp/>SOFTWARE<sp/>IS<sp/>PROVIDED<sp/>BY<sp/>THE<sp/>AUTHOR<sp/>AND<sp/>CONTRIBUTORS<sp/>"AS<sp/>IS"<sp/>AND<sp/>ANY<sp/>EXPRESS<sp/>OR<sp/>IMPLIED</highlight></codeline>
<codeline lineno="20"><highlight class="comment"><sp/>*<sp/>WARRANTIES,<sp/>INCLUDING,<sp/>BUT<sp/>NOT<sp/>LIMITED<sp/>TO,<sp/>THE<sp/>IMPLIED<sp/>WARRANTIES<sp/>OF<sp/>MERCHANTABILITY<sp/>AND<sp/>FITNESS</highlight></codeline>
<codeline lineno="21"><highlight class="comment"><sp/>*<sp/>FOR<sp/>A<sp/>PARTICULAR<sp/>PURPOSE<sp/>ARE<sp/>DISCLAIMED.<sp/>IN<sp/>NO<sp/>EVENT<sp/>SHALL<sp/>THE<sp/>COPYRIGHT<sp/>OWNER<sp/>OR<sp/>CONTRIBUTORS</highlight></codeline>
<codeline lineno="22"><highlight class="comment"><sp/>*<sp/>BE<sp/>LIABLE<sp/>FOR<sp/>ANY<sp/>DIRECT,<sp/>INDIRECT,<sp/>INCIDENTAL,<sp/>SPECIAL,<sp/>EXEMPLARY,<sp/>OR<sp/>CONSEQUENTIAL<sp/>DAMAGES</highlight></codeline>
<codeline lineno="23"><highlight class="comment"><sp/>*<sp/>(INCLUDING,<sp/>BUT<sp/>NOT<sp/>LIMITED<sp/>TO,<sp/>PROCUREMENT<sp/>OF<sp/>SUBSTITUTE<sp/>GOODS<sp/>OR<sp/>SERVICES;<sp/>LOSS<sp/>OF<sp/>USE,<sp/>DATA,</highlight></codeline>
<codeline lineno="24"><highlight class="comment"><sp/>*<sp/>OR<sp/>PROFITS;<sp/>OR<sp/>BUSINESS<sp/>INTERRUPTION)<sp/>HOWEVER<sp/>CAUSED<sp/>AND<sp/>ON<sp/>ANY<sp/>THEORY<sp/>OF<sp/>LIABILITY,<sp/>WHETHER<sp/>IN</highlight></codeline>
<codeline lineno="25"><highlight class="comment"><sp/>*<sp/>CONTRACT,<sp/>STRICT<sp/>LIABILITY,<sp/>OR<sp/>TORT<sp/>(INCLUDING<sp/>NEGLIGENCE<sp/>OR<sp/>OTHERWISE)<sp/>ARISING<sp/>IN<sp/>ANY<sp/>WAY<sp/>OUT</highlight></codeline>
<codeline lineno="26"><highlight class="comment"><sp/>*<sp/>OF<sp/>THE<sp/>USE<sp/>OF<sp/>THIS<sp/>SOFTWARE,<sp/>EVEN<sp/>IF<sp/>ADVISED<sp/>OF<sp/>THE<sp/>POSSIBILITY<sp/>OF<sp/>SUCH<sp/>DAMAGE.</highlight></codeline>
<codeline lineno="27"><highlight class="comment"><sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="28"><highlight class="normal"></highlight></codeline>
<codeline lineno="29"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/><<ref refid="vmm_8h" kindref="compound">vmm/vmm.h</ref>></highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="30"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/><<ref refid="sched_8h" kindref="compound">ubixos/sched.h</ref>></highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="31"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/><<ref refid="kpanic_8h" kindref="compound">ubixos/kpanic.h</ref>></highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="32"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/><<ref refid="spinlock_8h" kindref="compound">ubixos/spinlock.h</ref>></highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="33"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/><<ref refid="kprintf_8h" kindref="compound">lib/kprintf.h</ref>></highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="34"><highlight class="normal"></highlight></codeline>
<codeline lineno="35"><highlight class="normal"></highlight><highlight class="keyword">static</highlight><highlight class="normal"><sp/></highlight><highlight class="keyword">struct<sp/></highlight><highlight class="normal"><ref refid="structspinLock" kindref="compound">spinLock</ref><sp/>fvpSpinLock<sp/>=<sp/><ref refid="spinlock_8h_1a0fe85a4f3642683148b25916d6c5eafd" kindref="member">SPIN_LOCK_INITIALIZER</ref>;</highlight></codeline>
<codeline lineno="36"><highlight class="normal"></highlight></codeline>
<codeline lineno="37"><highlight class="normal"></highlight><highlight class="comment">/************************************************************************</highlight></codeline>
<codeline lineno="38"><highlight class="comment"></highlight></codeline>
<codeline lineno="39"><highlight class="comment"><sp/>Function:<sp/>void<sp/>*vmm_getFreeVirtualPage(pidType<sp/>pid,int<sp/>count);</highlight></codeline>
<codeline lineno="40"><highlight class="comment"><sp/>Description:<sp/>Returns<sp/>A<sp/>Free<sp/>Page<sp/>Mapped<sp/>To<sp/>The<sp/>VM<sp/>Space</highlight></codeline>
<codeline lineno="41"><highlight class="comment"><sp/>Notes:</highlight></codeline>
<codeline lineno="42"><highlight class="comment"></highlight></codeline>
<codeline lineno="43"><highlight class="comment"><sp/>2016-01-21<sp/>MrOlsen<sp/>-<sp/>I'm<sp/>not<sp/>100%<sp/>happy<sp/>with<sp/>this,<sp/>i<sp/>know<sp/>I<sp/>can<sp/>make<sp/>the<sp/>calculations<sp/>much<sp/>faster</highlight></codeline>
<codeline lineno="44"><highlight class="comment"></highlight></codeline>
<codeline lineno="45"><highlight class="comment"><sp/>08/11/02<sp/>-<sp/>This<sp/>Will<sp/>Return<sp/>Next<sp/>Avilable<sp/>Free<sp/>Page<sp/>Of<sp/>Tasks<sp/>VM<sp/>Space</highlight></codeline>
<codeline lineno="46"><highlight class="comment"></highlight></codeline>
<codeline lineno="47" refid="getfreevirtualpage_8c_1a53d26f1c6ecf9d6242ab538b5f55e31b" refkind="member"><highlight class="comment"><sp/>************************************************************************/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="48"><highlight class="normal"></highlight><highlight class="keywordtype">void</highlight><highlight class="normal"><sp/>*<ref refid="getfreevirtualpage_8c_1a53d26f1c6ecf9d6242ab538b5f55e31b" kindref="member">vmm_getFreeVirtualPage</ref>(<ref refid="include_2sys_2types_8h_1ae438ba74394b14d7b24b6df3b3b8c252" kindref="member">pidType</ref><sp/>pid,<sp/></highlight><highlight class="keywordtype">int</highlight><highlight class="normal"><sp/>count,<sp/></highlight><highlight class="keywordtype">int</highlight><highlight class="normal"><sp/>type)<sp/>{</highlight></codeline>
<codeline lineno="49"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordtype">int</highlight><highlight class="normal"><sp/>y<sp/>=<sp/>0,<sp/>counter<sp/>=<sp/>0,<sp/>pdI<sp/>=<sp/>0x0,<sp/>ptI<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="50"><highlight class="normal"></highlight></codeline>
<codeline lineno="51"><highlight class="normal"><sp/><sp/><ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*pageDirectory<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="52"><highlight class="normal"><sp/><sp/><ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*pageTable<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="53"><highlight class="normal"></highlight></codeline>
<codeline lineno="54"><highlight class="normal"><sp/><sp/><ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>start_page<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="55"><highlight class="normal"><sp/><sp/><ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>map_from<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="56"><highlight class="normal"></highlight></codeline>
<codeline lineno="57"><highlight class="normal"><sp/><sp/><ref refid="armv6_2spinlock_8c_1a71f03d2ba55111c715b6068254847a53" kindref="member">spinLock</ref>(&fvpSpinLock);</highlight></codeline>
<codeline lineno="58"><highlight class="normal"></highlight></codeline>
<codeline lineno="59"><highlight class="normal"><sp/><sp/>pageDirectory<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*)<sp/><ref refid="paging_8h_1a1b0f37794d3da1a86f1df77e503ed98f" kindref="member">PD_BASE_ADDR</ref>;</highlight></codeline>
<codeline lineno="60"><highlight class="normal"></highlight></codeline>
<codeline lineno="61"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Lets<sp/>Search<sp/>For<sp/>A<sp/>Free<sp/>Page<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="62"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(<ref refid="armv6_2sched_8c_1a54397bfe18d5da4d50ff03b15f540858" kindref="member">_current</ref>-><ref refid="structtaskStruct_1a0933c70230d4ac8bc9953640c979f8d7" kindref="member">oInfo</ref>.<ref refid="structosInfo_1a2833c1fa4a221941b5d1141dfa5beefd" kindref="member">vmStart</ref><sp/><=<sp/>0x100000)</highlight></codeline>
<codeline lineno="63"><highlight class="normal"><sp/><sp/><sp/><sp/><ref refid="armv6_2kpanic_8c_1adb9a182aa071791a306163d50d653deb" kindref="member">kpanic</ref>(</highlight><highlight class="stringliteral">"Invalid<sp/>vmStart\n"</highlight><highlight class="normal">);</highlight></codeline>
<codeline lineno="64"><highlight class="normal"></highlight></codeline>
<codeline lineno="65"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Get<sp/>Our<sp/>Starting<sp/>Address<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="66"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(type<sp/>==<sp/><ref refid="paging_8h_1a4ede4e8b3e149ef94678acdae7de0e18" kindref="member">VM_THRD</ref>)<sp/>{</highlight></codeline>
<codeline lineno="67"><highlight class="normal"><sp/><sp/><sp/><sp/>start_page<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/>(<ref refid="armv6_2sched_8c_1a54397bfe18d5da4d50ff03b15f540858" kindref="member">_current</ref>-><ref refid="structtaskStruct_1a481c2e7084fec272e616d3fb984036e2" kindref="member">td</ref>.<ref refid="structthread_1ae4165d082b98f27dab6bfeeefb76e060" kindref="member">vm_daddr</ref><sp/>+<sp/><ref refid="paging_8h_1a071caea8a82a06e754daca63317d3c07" kindref="member">ctob</ref>(<ref refid="armv6_2sched_8c_1a54397bfe18d5da4d50ff03b15f540858" kindref="member">_current</ref>-><ref refid="structtaskStruct_1a481c2e7084fec272e616d3fb984036e2" kindref="member">td</ref>.<ref refid="structthread_1ac5ce95b5be4422e5f5a61f081547d425" kindref="member">vm_dsize</ref>));</highlight></codeline>
<codeline lineno="68"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="69"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">else</highlight><highlight class="normal"><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(type<sp/>==<sp/><ref refid="paging_8h_1a59a518704bf2f0b56603476bcb1eebbf" kindref="member">VM_TASK</ref>)<sp/>{</highlight></codeline>
<codeline lineno="70"><highlight class="normal"><sp/><sp/><sp/><sp/>start_page<sp/>=<sp/><ref refid="armv6_2sched_8c_1a54397bfe18d5da4d50ff03b15f540858" kindref="member">_current</ref>-><ref refid="structtaskStruct_1a0933c70230d4ac8bc9953640c979f8d7" kindref="member">oInfo</ref>.<ref refid="structosInfo_1a2833c1fa4a221941b5d1141dfa5beefd" kindref="member">vmStart</ref>;</highlight></codeline>
<codeline lineno="71"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="72"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">else</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="73"><highlight class="normal"><sp/><sp/><sp/><sp/><ref refid="kpanic_8h_1aa5193288597f00c4f8e3b2939aa6c0ce" kindref="member">K_PANIC</ref>(</highlight><highlight class="stringliteral">"Invalid<sp/>Type"</highlight><highlight class="normal">);</highlight></codeline>
<codeline lineno="74"><highlight class="normal"></highlight></codeline>
<codeline lineno="75"><highlight class="normal"></highlight></codeline>
<codeline lineno="76"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Locate<sp/>Initial<sp/>Page<sp/>Table<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="77"><highlight class="normal"><sp/><sp/>keepMapping:</highlight></codeline>
<codeline lineno="78"><highlight class="normal"><sp/><sp/>pdI<sp/>=<sp/><ref refid="paging_8h_1ac96f9536624cb5d2e7634f37fa919c4c" kindref="member">PD_INDEX</ref>(start_page);</highlight></codeline>
<codeline lineno="79"><highlight class="normal"></highlight></codeline>
<codeline lineno="80"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(pdI<sp/>><sp/><ref refid="paging_8h_1ac96f9536624cb5d2e7634f37fa919c4c" kindref="member">PD_INDEX</ref>(<ref refid="vmm_8h_1a71bd5e4901787995ae8f9cc3e1a888f9" kindref="member">VMM_USER_END</ref>))<sp/>{</highlight></codeline>
<codeline lineno="81"><highlight class="normal"><sp/><sp/><sp/><sp/>map_from<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="82"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">goto</highlight><highlight class="normal"><sp/>doneMapping;</highlight></codeline>
<codeline lineno="83"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="84"><highlight class="normal"></highlight></codeline>
<codeline lineno="85"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>If<sp/>Page<sp/>Directory<sp/>Is<sp/>Not<sp/>Yet<sp/>Allocated<sp/>Allocate<sp/>It<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="86"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((pageDirectory[pdI]<sp/>&<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)<sp/>!=<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)<sp/>{</highlight></codeline>
<codeline lineno="87"><highlight class="normal"><sp/><sp/><sp/><sp/><ref refid="vmm_8h_1acba8d9cc298370338bc5bea5187183b2" kindref="member">vmm_allocPageTable</ref>(pdI,<sp/>pid);</highlight></codeline>
<codeline lineno="88"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="89"><highlight class="normal"></highlight></codeline>
<codeline lineno="90"><highlight class="normal"><sp/><sp/>pageTable<sp/>=<sp/>(<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref><sp/>*)<sp/>(<ref refid="paging_8h_1a8d42a9a09d9dea53cab3044f51482acc" kindref="member">PT_BASE_ADDR</ref><sp/>+<sp/>(pdI<sp/>*<sp/><ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref>));</highlight></codeline>
<codeline lineno="91"><highlight class="normal"></highlight></codeline>
<codeline lineno="92"><highlight class="normal"><sp/><sp/>ptI<sp/>=<sp/><ref refid="paging_8h_1a2c6e29890bb0209384b6d012db48e2f7" kindref="member">PT_INDEX</ref>(start_page);</highlight></codeline>
<codeline lineno="93"><highlight class="normal"></highlight></codeline>
<codeline lineno="94"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">for</highlight><highlight class="normal"><sp/>(y<sp/>=<sp/>ptI;<sp/>y<sp/><<sp/><ref refid="paging_8h_1adc9776583e54abf06ae7b99f1f3036a6" kindref="member">PT_ENTRIES</ref><sp/>&&<sp/>counter<sp/><<sp/>count;<sp/>y++,<sp/>counter++)<sp/>{</highlight></codeline>
<codeline lineno="95"><highlight class="normal"></highlight></codeline>
<codeline lineno="96"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Loop<sp/>Through<sp/>The<sp/>Page<sp/>Table<sp/>Find<sp/>An<sp/>UnAllocated<sp/>Page<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="97"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((pageTable[y]<sp/>&<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)<sp/>==<sp/><ref refid="paging_8h_1a122dfc414a40e260fd35dbe9743db26f" kindref="member">PAGE_PRESENT</ref>)<sp/>{</highlight></codeline>
<codeline lineno="98"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((pageTable[y]<sp/>&<sp/><ref refid="paging_8h_1a57d743cb60fe478f6720c42315e7e813" kindref="member">PAGE_COW</ref>)<sp/>==<sp/><ref refid="paging_8h_1a57d743cb60fe478f6720c42315e7e813" kindref="member">PAGE_COW</ref>)</highlight></codeline>
<codeline lineno="99"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="kprintf_8h_1a20b56810edb62a6fe59917015c30848f" kindref="member">kprintf</ref>(</highlight><highlight class="stringliteral">"COW<sp/>PAGE<sp/>NOT<sp/>CLEANED!"</highlight><highlight class="normal">);</highlight></codeline>
<codeline lineno="100"><highlight class="normal"></highlight></codeline>
<codeline lineno="101"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>start_page<sp/>+=<sp/>(<ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref><sp/>*<sp/>counter);</highlight></codeline>
<codeline lineno="102"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>map_from<sp/>=<sp/>0x0;</highlight></codeline>
<codeline lineno="103"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>counter<sp/>=<sp/>0;</highlight></codeline>
<codeline lineno="104"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">goto</highlight><highlight class="normal"><sp/>keepMapping;</highlight></codeline>
<codeline lineno="105"><highlight class="normal"><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="106"><highlight class="normal"></highlight></codeline>
<codeline lineno="107"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(map_from<sp/>==<sp/>0x0)</highlight></codeline>
<codeline lineno="108"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>map_from<sp/>=<sp/>start_page;</highlight></codeline>
<codeline lineno="109"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="110"><highlight class="normal"></highlight></codeline>
<codeline lineno="111"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(counter<sp/><<sp/>count)<sp/>{</highlight></codeline>
<codeline lineno="112"><highlight class="normal"><sp/><sp/><sp/><sp/>start_page<sp/>+=<sp/>(<ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref><sp/>*<sp/>counter);</highlight></codeline>
<codeline lineno="113"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">goto</highlight><highlight class="normal"><sp/>keepMapping;</highlight></codeline>
<codeline lineno="114"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="115"><highlight class="normal"></highlight></codeline>
<codeline lineno="116"><highlight class="normal"><sp/><sp/>gotPages:</highlight></codeline>
<codeline lineno="117"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(type<sp/>==<sp/><ref refid="paging_8h_1a4ede4e8b3e149ef94678acdae7de0e18" kindref="member">VM_THRD</ref>)</highlight></codeline>
<codeline lineno="118"><highlight class="normal"><sp/><sp/><sp/><sp/><ref refid="armv6_2sched_8c_1a54397bfe18d5da4d50ff03b15f540858" kindref="member">_current</ref>-><ref refid="structtaskStruct_1a481c2e7084fec272e616d3fb984036e2" kindref="member">td</ref>.<ref refid="structthread_1ac5ce95b5be4422e5f5a61f081547d425" kindref="member">vm_dsize</ref><sp/>+=<sp/><ref refid="paging_8h_1a0851ee42f36c8a00e9eafe739c8ffaaa" kindref="member">btoc</ref>(count<sp/>*<sp/><ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref>);</highlight></codeline>
<codeline lineno="119"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">else</highlight><highlight class="normal"><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(type<sp/>==<sp/><ref refid="paging_8h_1a59a518704bf2f0b56603476bcb1eebbf" kindref="member">VM_TASK</ref>)</highlight></codeline>
<codeline lineno="120"><highlight class="normal"><sp/><sp/><sp/><sp/><ref refid="armv6_2sched_8c_1a54397bfe18d5da4d50ff03b15f540858" kindref="member">_current</ref>-><ref refid="structtaskStruct_1a0933c70230d4ac8bc9953640c979f8d7" kindref="member">oInfo</ref>.<ref refid="structosInfo_1a2833c1fa4a221941b5d1141dfa5beefd" kindref="member">vmStart</ref><sp/>=<sp/>map_from<sp/>+<sp/>(count<sp/>*<sp/><ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref>);</highlight></codeline>
<codeline lineno="121"><highlight class="normal"></highlight></codeline>
<codeline lineno="122"><highlight class="normal"><sp/></highlight><highlight class="comment">//_current->oInfo.vmStart<sp/>+=<sp/>(count<sp/>*<sp/>PAGE_SIZE);</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="123"><highlight class="normal"></highlight></codeline>
<codeline lineno="124"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">for</highlight><highlight class="normal"><sp/>(counter<sp/>=<sp/>0;<sp/>counter<sp/><<sp/>count;<sp/>counter++)<sp/>{</highlight></codeline>
<codeline lineno="125"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>((<ref refid="paging_8h_1adea68f248df43bddee62a09d945304b0" kindref="member">vmm_remapPage</ref>((<ref refid="include_2sys_2types_8h_1a0238af00180b6d9278fa1c6aa790fdf4" kindref="member">uint32_t</ref>)<sp/><ref refid="vmm_8h_1ab8e4e189a7b1df2a03072ce5b75c89fe" kindref="member">vmm_findFreePage</ref>(pid),<sp/>(map_from<sp/>+<sp/>(counter<sp/>*<sp/><ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref>)),<sp/><ref refid="paging_8h_1af0fff7a38cd2c7a32d580787423b94ea" kindref="member">PAGE_DEFAULT</ref>,<sp/>pid,<sp/>0))<sp/>==<sp/>0x0)</highlight></codeline>
<codeline lineno="126"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="armv6_2kpanic_8c_1adb9a182aa071791a306163d50d653deb" kindref="member">kpanic</ref>(</highlight><highlight class="stringliteral">"vmmRemapPage:<sp/>getFreeVirtualPage-1:<sp/>(%i)[0x%X]\n"</highlight><highlight class="normal">,<sp/>type,<sp/>map_from<sp/>+<sp/>(counter<sp/>*<sp/><ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref>));</highlight></codeline>
<codeline lineno="127"><highlight class="normal"></highlight></codeline>
<codeline lineno="128"><highlight class="normal"><sp/><sp/><sp/><sp/><ref refid="gpt_8h_1a310ac455ac45de9713bd7dcb0b5500ad" kindref="member">bzero</ref>((map_from<sp/>+<sp/>(counter<sp/>*<sp/><ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref>)),<sp/><ref refid="paging_8h_1a7d467c1d283fdfa1f2081ba1e0d01b6e" kindref="member">PAGE_SIZE</ref>);</highlight></codeline>
<codeline lineno="129"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="130"><highlight class="normal"></highlight></codeline>
<codeline lineno="131"><highlight class="normal"><sp/><sp/>doneMapping:</highlight></codeline>
<codeline lineno="132"><highlight class="normal"><sp/><sp/><ref refid="armv6_2spinlock_8c_1ae29ab191c93f9ead066cb462dd2e7247" kindref="member">spinUnlock</ref>(&fvpSpinLock);</highlight></codeline>
<codeline lineno="133"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal"><sp/>(map_from);</highlight></codeline>
<codeline lineno="134"><highlight class="normal">}</highlight></codeline>
</programlisting>
<location file="C:/Dev/git/UbixOS/sys/vmm/getfreevirtualpage.c"/>
</compounddef>
</doxygen>
