templeos-info/public/Wb/Demo/Lectures/PCIInterrupts.HC.HTML

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2024-03-24 21:24:44 +00:00
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<a name="l1"></a><span class=cF2>//See </span><span class=cF4><u>PCI</u></span><span class=cF2>.</span><span class=cF0>
<a name="l2"></a>
<a name="l3"></a>#</span><span class=cF1>if</span><span class=cF0> </span><span class=cFB>mp_cnt</span><span class=cF0>&gt;1
<a name="l4"></a>#</span><span class=cF1>define</span><span class=cF0> DEST_CPU 1
<a name="l5"></a>#</span><span class=cF1>else</span><span class=cF0>
<a name="l6"></a>#</span><span class=cF1>define</span><span class=cF0> DEST_CPU 0
<a name="l7"></a>#</span><span class=cF1>endif</span><span class=cF0>
<a name="l8"></a>
<a name="l9"></a>#</span><span class=cF1>assert</span><span class=cF0> </span><span class=cF3>I_USER</span><span class=cF0>==0x40
<a name="l10"></a>
<a name="l11"></a></span><span class=cF1>interrupt</span><span class=cF0> </span><span class=cF1>U0</span><span class=cF0> IntMy40()
<a name="l12"></a>{
<a name="l13"></a> </span><span class=cF1>lock</span><span class=cF0> </span><span class=cF7>{</span><span class=cFB>progress1</span><span class=cF0>++;</span><span class=cF7>}</span><span class=cF0>
<a name="l14"></a>*(</span><span class=cFB>dev</span><span class=cF0>.uncached_alias+</span><span class=cF3>LAPIC_EOI</span><span class=cF0>)(</span><span class=cF9>U32</span><span class=cF0> *)=0;
<a name="l15"></a>}
<a name="l16"></a>
<a name="l17"></a></span><span class=cF1>interrupt</span><span class=cF0> </span><span class=cF1>U0</span><span class=cF0> IntMy41()
<a name="l18"></a>{
<a name="l19"></a> </span><span class=cF1>lock</span><span class=cF0> </span><span class=cF7>{</span><span class=cFB>progress2</span><span class=cF0>++;</span><span class=cF7>}</span><span class=cF0>
<a name="l20"></a>*(</span><span class=cFB>dev</span><span class=cF0>.uncached_alias+</span><span class=cF3>LAPIC_EOI</span><span class=cF0>)(</span><span class=cF9>U32</span><span class=cF0> *)=0;
<a name="l21"></a>}
<a name="l22"></a>
<a name="l23"></a></span><span class=cF1>interrupt</span><span class=cF0> </span><span class=cF1>U0</span><span class=cF0> IntMy42()
<a name="l24"></a>{
<a name="l25"></a> </span><span class=cF1>lock</span><span class=cF0> </span><span class=cF7>{</span><span class=cFB>progress3</span><span class=cF0>++;</span><span class=cF7>}</span><span class=cF0>
<a name="l26"></a>*(</span><span class=cFB>dev</span><span class=cF0>.uncached_alias+</span><span class=cF3>LAPIC_EOI</span><span class=cF0>)(</span><span class=cF9>U32</span><span class=cF0> *)=0;
<a name="l27"></a>}
<a name="l28"></a>
<a name="l29"></a></span><span class=cF1>interrupt</span><span class=cF0> </span><span class=cF1>U0</span><span class=cF0> IntMy43()
<a name="l30"></a>{
<a name="l31"></a> </span><span class=cF1>lock</span><span class=cF0> </span><span class=cF7>{</span><span class=cFB>progress4</span><span class=cF0>++;</span><span class=cF7>}</span><span class=cF0>
<a name="l32"></a>*(</span><span class=cFB>dev</span><span class=cF0>.uncached_alias+</span><span class=cF3>LAPIC_EOI</span><span class=cF0>)(</span><span class=cF9>U32</span><span class=cF0> *)=0;
<a name="l33"></a>}
<a name="l34"></a>
<a name="l35"></a></span><span class=cF9>I64</span><span class=cF0> vect[4]={&amp;IntMy40,&amp;IntMy41,&amp;IntMy42,&amp;IntMy43};
<a name="l36"></a>
<a name="l37"></a></span><span class=cF1>U0</span><span class=cF0> Main()
<a name="l38"></a>{
<a name="l39"></a> </span><span class=cF9>I64</span><span class=cF0> i;
<a name="l40"></a> </span><span class=cF1>U8</span><span class=cF0> *da=</span><span class=cFB>dev</span><span class=cF0>.uncached_alias+</span><span class=cF3>IOAPIC_REG</span><span class=cF0>;
<a name="l41"></a> </span><span class=cF9>U32</span><span class=cF0> *_d=</span><span class=cFB>dev</span><span class=cF0>.uncached_alias+</span><span class=cF3>IOAPIC_DATA</span><span class=cF0>;
<a name="l42"></a>
<a name="l43"></a> </span><span class=cF5>ProgressBarsRst</span><span class=cF0>;
<a name="l44"></a> </span><span class=cF1>for</span><span class=cF0> (i=</span><span class=cF3>I_USER</span><span class=cF0>;i&lt;</span><span class=cF3>I_USER</span><span class=cF0>+4;i++)
<a name="l45"></a> </span><span class=cF5>IntEntrySet</span><span class=cF0>(i,vect[i&amp;3],</span><span class=cF3>IDTET_IRQ</span><span class=cF0>);
<a name="l46"></a>
<a name="l47"></a> </span><span class=cF2>//There are like 4*6 vects. Bus zero</span><span class=cF0>
<a name="l48"></a> </span><span class=cF2>//has the first four vects.</span><span class=cF0>
<a name="l49"></a> </span><span class=cF1>for</span><span class=cF0> (i=</span><span class=cF3>IOREDTAB</span><span class=cF0>;i&lt;</span><span class=cF3>IOREDTAB</span><span class=cF0>+4*2;i+=2) </span><span class=cF7>{</span><span class=cF0>
<a name="l50"></a> *da=i+1;
<a name="l51"></a> *_d=</span><span class=cFB>dev</span><span class=cF0>.mp_apic_ids[DEST_CPU]&lt;&lt;24;
<a name="l52"></a> *da=i;
<a name="l53"></a> *_d=0x4000+0x40+(i-</span><span class=cF3>IOREDTAB</span><span class=cF0>)/2;
<a name="l54"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l55"></a>
<a name="l56"></a> </span><span class=cF5>Sleep</span><span class=cF0>(1000);
<a name="l57"></a> </span><span class=cF6>&quot;The keyboard and timer seem to be active.\n&quot;</span><span class=cF0>
<a name="l58"></a> </span><span class=cF6>&quot;IntA:%d IntB:%d IntC:%d IntD:%d\n\n&quot;</span><span class=cF0>
<a name="l59"></a> </span><span class=cF6>&quot;IntB is my keybaord and regs a single KEY-UP.\n&quot;</span><span class=cF0>
<a name="l60"></a> </span><span class=cF6>&quot;Rerun and press a few keys.\n&quot;</span><span class=cF0>,
<a name="l61"></a> </span><span class=cFB>progress1</span><span class=cF0>,</span><span class=cFB>progress2</span><span class=cF0>,</span><span class=cFB>progress3</span><span class=cF0>,</span><span class=cFB>progress4</span><span class=cF0>;
<a name="l62"></a>
<a name="l63"></a> </span><span class=cF2>//Disable vects</span><span class=cF0>
<a name="l64"></a> </span><span class=cF1>for</span><span class=cF0> (i=</span><span class=cF3>IOREDTAB</span><span class=cF0>;i&lt;</span><span class=cF3>IOREDTAB</span><span class=cF0>+4*2;i+=2) </span><span class=cF7>{</span><span class=cF0>
<a name="l65"></a> *da=i+1;
<a name="l66"></a> *_d=</span><span class=cFB>dev</span><span class=cF0>.mp_apic_ids[DEST_CPU]&lt;&lt;24;
<a name="l67"></a> *da=i;
<a name="l68"></a> *_d=0x14000+0x40+(i-</span><span class=cF3>IOREDTAB</span><span class=cF0>)/2;
<a name="l69"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l70"></a> </span><span class=cF5>ProgressBarsRst</span><span class=cF0>;
<a name="l71"></a>}
<a name="l72"></a>
<a name="l73"></a>Main;
</span></pre></body>
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