John Demme teqdruid

teqdruid / spatialc.cf

Last active August 29, 2015 14:25

BNFC Output

	PDefs.Program ::= [Def] ;

	DefImport. Def ::= "import" [PackageName] ";" ;
	DefPackage. Def ::= "package" [PackageName] ";" ;
	DefModule. Def ::= "module" Id "{" [ModDef] "}" ;
	terminator Def "" ;

	DefStorage. ModDef ::= Type Id ";" ;
	DefInput. ModDef ::= "input" Type Id ";" ;
	DefOutput. ModDef ::= "output" Type Id ";" ;

teqdruid / gist:cb095c58fef94f4aad23

Created June 24, 2014 19:40

Zynq PMU initialization module

	/*
	* Kernel module to initialize counters
	*/

	#include <linux/module.h> /* Needed by all modules */
	#include <linux/kernel.h> /* Needed for KERN_ERR */
	#include <asm/io.h>
	#include <linux/fs.h>
	#include <linux/slab.h>
	#include <asm/uaccess.h>

teqdruid / Console output -- no Sleep

Created August 7, 2012 20:25

An attempt at making an ARMv7 kernel module for performance counting

	# depmod -a; modprobe pmu_sync_sample ; sleep 0; modprobe -r pmu_sync_sample

	dmesg output
	[91376.479217] Found 6 counters
	[91376.479339] Hello, ARM from core 0
	[91376.479492] PMNC registers dump:
	[91376.479583] PMNC =0x41093001
	[91376.479736] CNTENS=0x8000003f
	[91376.479827] INTENS=0x00000000
	[91376.479919] FLAGS =0x00000000

teqdruid / perf_event_template.c

Created April 23, 2012 18:59

Template for using perf_event

	/*
	============================================================================
	Name : branch_mispred.c
	Author : John Demme
	Version : Mar 21, 2011
	Description : A template for perf_event. Requires Linux 2.6.32 or higher
	============================================================================
	*/

	#define _GNU_SOURCE