search for: __ms_timer

Displaying 3 results from an estimated 3 matches for "__ms_timer".

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2016 Mar 02
0
"Tick-counting" vs "Tick-less" timekeeping issues on VMs emulating BIOS PCs
...ate the BIOS_timer at 0x046C but it has problems emulating a "real" timer interrupt to be hooked... That's the real problem. Just testing I have replaced the timing functions #define BIOS_timer 0x046C // Timer ticks typedef uint32_t jiffies_t; extern volatile jiffies_t __jiffies, __ms_timer; static inline jiffies_t jiffies(void) { return (*(volatile uint32_t *)BIOS_timer); } typedef uint32_t mstime_t; typedef int32_t mstimediff_t; static inline mstime_t ms_timer(void) { return ((*(volatile uint32_t *)BIOS_timer) * 55); } lpxelinux.0 hangs while legacy works OK. I think we should...
2016 Mar 02
2
"Tick-counting" vs "Tick-less" timekeeping issues on VMs emulating BIOS PCs
On 03/01/16 21:11, H. Peter Anvin via Syslinux wrote: > On 03/01/16 07:21, Patrick Masotta via Syslinux wrote: >> >> At the moment I'm seeing timing issues on TFTP transfers (lwIP depends >> on the new interrupt based timer). I have consistently detected >> >> multiple Requests, double ACKs, etc. All these problems seem to be >> >> sourced on the
2011 Feb 17
5
[PATCH 0/4] Reduce core size
From: Matt Fleming <matt.fleming at linux.intel.com> These patches are based on the elflink branch. This set of patches is my attempt at moving the command-line interface functionality out of the core and into an ELF module to reduce the size of the core. The most interesting patch is [PATCH 4/4] which moves the cli code out of core/elflink and into com32/elflink/modules. [PATCH 4/4] is