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| <td width="10%" class="headerItem">Current view:</td> |
| <td width="10%" class="headerValue"><a href="../index.html">top level</a> - <a href="index.html">include</a> - timebase.h<span style="font-size: 80%;"> (source / <a href="timebase.h.func-c.html">functions</a>)</span></td> |
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| <td width="5%" class="headerCovTableHead">Coverage</td> |
| <td width="5%" class="headerCovTableHead" title="Covered + Uncovered code">Total</td> |
| <td width="5%" class="headerCovTableHead" title="Exercised code only">Hit</td> |
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| <td class="headerItem">Test:</td> |
| <td class="headerValue">skiboot.info</td> |
| <td></td> |
| <td class="headerItem">Lines:</td> |
| <td class="headerCovTableEntryHi">100.0 %</td> |
| <td class="headerCovTableEntry">18</td> |
| <td class="headerCovTableEntry">18</td> |
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| <td class="headerItem">Test Date:</td> |
| <td class="headerValue">2025-06-27 16:54:26</td> |
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| <td class="headerItem">Functions:</td> |
| <td class="headerCovTableEntryHi">100.0 %</td> |
| <td class="headerCovTableEntry">8</td> |
| <td class="headerCovTableEntry">8</td> |
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| <pre class="sourceHeading"> Branch data Line data Source code</pre> |
| <pre class="source"> |
| <span id="L1"><span class="lineNum"> 1</span> : : // SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later</span> |
| <span id="L2"><span class="lineNum"> 2</span> : : /*</span> |
| <span id="L3"><span class="lineNum"> 3</span> : : * Timebase helpers.</span> |
| <span id="L4"><span class="lineNum"> 4</span> : : *</span> |
| <span id="L5"><span class="lineNum"> 5</span> : : * Note: Only use after the TODs are in sync !</span> |
| <span id="L6"><span class="lineNum"> 6</span> : : *</span> |
| <span id="L7"><span class="lineNum"> 7</span> : : * Copyright 2013-2016 IBM Corp.</span> |
| <span id="L8"><span class="lineNum"> 8</span> : : */</span> |
| <span id="L9"><span class="lineNum"> 9</span> : : </span> |
| <span id="L10"><span class="lineNum"> 10</span> : : #ifndef __TIME_H</span> |
| <span id="L11"><span class="lineNum"> 11</span> : : #define __TIME_H</span> |
| <span id="L12"><span class="lineNum"> 12</span> : : </span> |
| <span id="L13"><span class="lineNum"> 13</span> : : #include <time.h></span> |
| <span id="L14"><span class="lineNum"> 14</span> : : </span> |
| <span id="L15"><span class="lineNum"> 15</span> : : #ifndef __TEST__</span> |
| <span id="L16"><span class="lineNum"> 16</span> : : static inline unsigned long mftb(void)</span> |
| <span id="L17"><span class="lineNum"> 17</span> : : {</span> |
| <span id="L18"><span class="lineNum"> 18</span> : : unsigned long tb;</span> |
| <span id="L19"><span class="lineNum"> 19</span> : : </span> |
| <span id="L20"><span class="lineNum"> 20</span> : : /* We use a memory clobber to avoid this being</span> |
| <span id="L21"><span class="lineNum"> 21</span> : : * moved in the instruction stream</span> |
| <span id="L22"><span class="lineNum"> 22</span> : : */</span> |
| <span id="L23"><span class="lineNum"> 23</span> : : asm volatile("mftb %0" : "=r"(tb) : : "memory");</span> |
| <span id="L24"><span class="lineNum"> 24</span> : : return tb;</span> |
| <span id="L25"><span class="lineNum"> 25</span> : : }</span> |
| <span id="L26"><span class="lineNum"> 26</span> : : #endif</span> |
| <span id="L27"><span class="lineNum"> 27</span> : : </span> |
| <span id="L28"><span class="lineNum"> 28</span> : : enum tb_cmpval {</span> |
| <span id="L29"><span class="lineNum"> 29</span> : : TB_ABEFOREB = -1,</span> |
| <span id="L30"><span class="lineNum"> 30</span> : : TB_AEQUALB = 0,</span> |
| <span id="L31"><span class="lineNum"> 31</span> : : TB_AAFTERB = 1</span> |
| <span id="L32"><span class="lineNum"> 32</span> : : };</span> |
| <span id="L33"><span class="lineNum"> 33</span> : : </span> |
| <span id="L34"><span class="lineNum"> 34</span> :<span class="tlaGNC tlaBgGNC"> 3 : static inline enum tb_cmpval tb_compare(unsigned long a,</span></span> |
| <span id="L35"><span class="lineNum"> 35</span> : : unsigned long b)</span> |
| <span id="L36"><span class="lineNum"> 36</span> : : {</span> |
| <span id="L37"><span class="lineNum"> 37</span> :<span class="tlaGNC"> 3 : if (a == b)</span></span> |
| <span id="L38"><span class="lineNum"> 38</span> :<span class="tlaGNC"> 1 : return TB_AEQUALB;</span></span> |
| <span id="L39"><span class="lineNum"> 39</span> :<span class="tlaGNC"> 2 : return ((long)(b - a)) > 0 ? TB_ABEFOREB : TB_AAFTERB;</span></span> |
| <span id="L40"><span class="lineNum"> 40</span> : : }</span> |
| <span id="L41"><span class="lineNum"> 41</span> : : </span> |
| <span id="L42"><span class="lineNum"> 42</span> : : /* Architected timebase */</span> |
| <span id="L43"><span class="lineNum"> 43</span> : : extern unsigned long tb_hz;</span> |
| <span id="L44"><span class="lineNum"> 44</span> : : </span> |
| <span id="L45"><span class="lineNum"> 45</span> :<span class="tlaGNC"> 3 : static inline unsigned long secs_to_tb(unsigned long secs)</span></span> |
| <span id="L46"><span class="lineNum"> 46</span> : : {</span> |
| <span id="L47"><span class="lineNum"> 47</span> :<span class="tlaGNC"> 3 : return secs * tb_hz;</span></span> |
| <span id="L48"><span class="lineNum"> 48</span> : : }</span> |
| <span id="L49"><span class="lineNum"> 49</span> : : </span> |
| <span id="L50"><span class="lineNum"> 50</span> :<span class="tlaGNC"> 1902 : static inline unsigned long tb_to_secs(unsigned long tb)</span></span> |
| <span id="L51"><span class="lineNum"> 51</span> : : {</span> |
| <span id="L52"><span class="lineNum"> 52</span> :<span class="tlaGNC"> 1902 : return tb / tb_hz;</span></span> |
| <span id="L53"><span class="lineNum"> 53</span> : : }</span> |
| <span id="L54"><span class="lineNum"> 54</span> : : </span> |
| <span id="L55"><span class="lineNum"> 55</span> :<span class="tlaGNC"> 11 : static inline unsigned long tb_remaining_nsecs(unsigned long tb)</span></span> |
| <span id="L56"><span class="lineNum"> 56</span> : : {</span> |
| <span id="L57"><span class="lineNum"> 57</span> :<span class="tlaGNC"> 11 : return tb % tb_hz;</span></span> |
| <span id="L58"><span class="lineNum"> 58</span> : : }</span> |
| <span id="L59"><span class="lineNum"> 59</span> : : </span> |
| <span id="L60"><span class="lineNum"> 60</span> :<span class="tlaGNC"> 7 : static inline unsigned long msecs_to_tb(unsigned long msecs)</span></span> |
| <span id="L61"><span class="lineNum"> 61</span> : : {</span> |
| <span id="L62"><span class="lineNum"> 62</span> :<span class="tlaGNC"> 7 : return msecs * (tb_hz / 1000);</span></span> |
| <span id="L63"><span class="lineNum"> 63</span> : : }</span> |
| <span id="L64"><span class="lineNum"> 64</span> : : </span> |
| <span id="L65"><span class="lineNum"> 65</span> :<span class="tlaGNC"> 1 : static inline unsigned long tb_to_msecs(unsigned long tb)</span></span> |
| <span id="L66"><span class="lineNum"> 66</span> : : {</span> |
| <span id="L67"><span class="lineNum"> 67</span> :<span class="tlaGNC"> 1 : return (tb * 1000) / tb_hz;</span></span> |
| <span id="L68"><span class="lineNum"> 68</span> : : }</span> |
| <span id="L69"><span class="lineNum"> 69</span> : : </span> |
| <span id="L70"><span class="lineNum"> 70</span> :<span class="tlaGNC"> 5 : static inline unsigned long usecs_to_tb(unsigned long usecs)</span></span> |
| <span id="L71"><span class="lineNum"> 71</span> : : {</span> |
| <span id="L72"><span class="lineNum"> 72</span> :<span class="tlaGNC"> 5 : return usecs * (tb_hz / 1000000);</span></span> |
| <span id="L73"><span class="lineNum"> 73</span> : : }</span> |
| <span id="L74"><span class="lineNum"> 74</span> : : </span> |
| <span id="L75"><span class="lineNum"> 75</span> :<span class="tlaGNC"> 2 : static inline unsigned long tb_to_usecs(unsigned long tb)</span></span> |
| <span id="L76"><span class="lineNum"> 76</span> : : {</span> |
| <span id="L77"><span class="lineNum"> 77</span> :<span class="tlaGNC"> 2 : return (tb * 1000000) / tb_hz;</span></span> |
| <span id="L78"><span class="lineNum"> 78</span> : : }</span> |
| <span id="L79"><span class="lineNum"> 79</span> : : </span> |
| <span id="L80"><span class="lineNum"> 80</span> : : extern unsigned long timespec_to_tb(const struct timespec *ts);</span> |
| <span id="L81"><span class="lineNum"> 81</span> : : </span> |
| <span id="L82"><span class="lineNum"> 82</span> : : /* time_wait - Wait a certain number of TB ticks while polling FSP */</span> |
| <span id="L83"><span class="lineNum"> 83</span> : : extern void time_wait(unsigned long duration);</span> |
| <span id="L84"><span class="lineNum"> 84</span> : : extern void time_wait_nopoll(unsigned long duration);</span> |
| <span id="L85"><span class="lineNum"> 85</span> : : </span> |
| <span id="L86"><span class="lineNum"> 86</span> : : /* time_wait_ms - Wait a certain number of milliseconds while polling FSP */</span> |
| <span id="L87"><span class="lineNum"> 87</span> : : extern void time_wait_ms(unsigned long ms);</span> |
| <span id="L88"><span class="lineNum"> 88</span> : : extern void time_wait_ms_nopoll(unsigned long ms);</span> |
| <span id="L89"><span class="lineNum"> 89</span> : : </span> |
| <span id="L90"><span class="lineNum"> 90</span> : : /* time_wait_us - Wait a certain number of microseconds while polling FSP */</span> |
| <span id="L91"><span class="lineNum"> 91</span> : : extern void time_wait_us(unsigned long us);</span> |
| <span id="L92"><span class="lineNum"> 92</span> : : extern void time_wait_us_nopoll(unsigned long us);</span> |
| <span id="L93"><span class="lineNum"> 93</span> : : </span> |
| <span id="L94"><span class="lineNum"> 94</span> : : /* nanosleep_nopoll - variant for use from hostservices */</span> |
| <span id="L95"><span class="lineNum"> 95</span> : : extern int nanosleep_nopoll(const struct timespec *req, struct timespec *rem);</span> |
| <span id="L96"><span class="lineNum"> 96</span> : : #endif /* __TIME_H */</span> |
| </pre> |
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