wok rev 25513

memtest: update sleep()
author Pascal Bellard <pascal.bellard@slitaz.org>
date Tue Feb 14 15:41:57 2023 +0000 (15 months ago)
parents e92394c9bae5
children a7a39e042b62
files memtest/receipt memtest/stuff/memtest86+-6-386.patch
line diff
     1.1 --- a/memtest/receipt	Tue Feb 14 07:20:48 2023 +0000
     1.2 +++ b/memtest/receipt	Tue Feb 14 15:41:57 2023 +0000
     1.3 @@ -75,7 +75,7 @@
     1.4  	objdump -t boot/startup.o | \
     1.5  	awk '/patch/ { print "sed -i \"s|" $5 "|0x" $1 "|\" ../boot/setup.S" }' | sh
     1.6  	make memtest.bin
     1.7 -	tune_lzma memtest.bin 208,mf=bt2 LC 3 PB 2
     1.8 +	tune_lzma memtest.bin 161,mf=bt2 LC 3 PB 2
     1.9  } 
    1.10  
    1.11  
     2.1 --- a/memtest/stuff/memtest86+-6-386.patch	Tue Feb 14 07:20:48 2023 +0000
     2.2 +++ b/memtest/stuff/memtest86+-6-386.patch	Tue Feb 14 15:41:57 2023 +0000
     2.3 @@ -1,6 +1,17 @@
     2.4  --- system/cpuinfo.c
     2.5  +++ system/cpuinfo.c
     2.6 -@@ -848,6 +848,12 @@
     2.7 +@@ -490,6 +490,10 @@
     2.8 + 
     2.9 + static void determine_cpu_model(void)
    2.10 + {
    2.11 ++    if (cpuid_info.version.family <= 4) {
    2.12 ++        pause_at_start = false;
    2.13 ++    }
    2.14 ++
    2.15 +     // If we can get a brand string use it, and we are done.
    2.16 +     if (cpuid_info.max_xcpuid >= 0x80000004) {
    2.17 +         cpu_model = cpuid_info.brand_id.str;
    2.18 +@@ -848,6 +852,12 @@
    2.19         default:
    2.20           // Unknown processor - make a guess at the family.
    2.21           switch (cpuid_info.version.family) {
    2.22 @@ -43,18 +54,16 @@
    2.23   
    2.24   //------------------------------------------------------------------------------
    2.25   // Public Variables
    2.26 -@@ -24,6 +45,17 @@
    2.27 +@@ -24,6 +45,15 @@
    2.28       uint32_t reg[4];
    2.29       char *p, *q;
    2.30   
    2.31  +    switch (has_cpuid(AC_BIT|CPUID_BIT)) {
    2.32  +    case 0:
    2.33  +        cpuid_info.version.family = 3;
    2.34 -+        pause_at_start = false;
    2.35  +        return;
    2.36  +    case AC_BIT:
    2.37  +        cpuid_info.version.family = 4;
    2.38 -+        pause_at_start = false;
    2.39  +        return;
    2.40  +    }
    2.41  +
    2.42 @@ -200,3 +209,40 @@
    2.43                   window_end   = VM_WINDOW_SIZE;
    2.44                   break;
    2.45                 default:
    2.46 +--- lib/unistd.c
    2.47 ++++ lib/unistd.c
    2.48 +@@ -5,10 +5,17 @@
    2.49 + 
    2.50 + #include "cpuinfo.h"
    2.51 + #include "tsc.h"
    2.52 ++#include "io.h"
    2.53 + 
    2.54 + #include "unistd.h"
    2.55 + 
    2.56 + //------------------------------------------------------------------------------
    2.57 ++// Constants
    2.58 ++//------------------------------------------------------------------------------
    2.59 ++
    2.60 ++#define PIT_TICKS_50mS      59659       // PIT clock is 1.193182MHz
    2.61 ++
    2.62 ++//------------------------------------------------------------------------------
    2.63 + // Public Functions
    2.64 + //------------------------------------------------------------------------------
    2.65 + 
    2.66 +@@ -22,9 +29,14 @@
    2.67 +             __builtin_ia32_pause();
    2.68 +         } while ((get_tsc() - t0) < cycles);
    2.69 +     } else {
    2.70 +-        // This will be highly inaccurate, but should give at least the requested delay.
    2.71 +-        volatile uint64_t count = (uint64_t)usec * 1000;
    2.72 ++        volatile uint64_t count = (uint64_t)usec / 50000;
    2.73 +         while (count > 0) {
    2.74 ++            // Use PIT Timer
    2.75 ++            outb((inb(0x61) & ~0x02) | 0x01, 0x61);
    2.76 ++            outb(0xb0, 0x43);
    2.77 ++            outb(PIT_TICKS_50mS & 0xff, 0x42);
    2.78 ++            outb(PIT_TICKS_50mS >> 8, 0x42);
    2.79 ++            while ((inb(0x61) & 0x20) == 0);
    2.80 +             count--;
    2.81 +         }
    2.82 +     }