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sandip4n / qemu-cmdline.txt
Created December 8, 2020 09:09
./qemu/build/ppc64-softmmu/qemu-system-ppc64 -enable-kvm \
-m 64G,maxmem=512G,slots=16 \
-smp 16,threads=1 \
-object memory-backend-ram,size=16G,id=node0-ram0 \
-object memory-backend-ram,size=16G,id=node0-ram1 \
-object memory-backend-ram,size=16G,id=node1-ram0 \
-object memory-backend-ram,size=16G,id=node1-ram1 \
-object memory-backend-ram,size=16G,id=node2-ram0 \
-object memory-backend-ram,size=16G,id=node2-ram1 \
-object memory-backend-ram,size=16G,id=node3-ram0 \
@sandip4n
sandip4n / kvm-client.c
Created October 30, 2020 09:49
#ifndef __powerpc64__
#error "unsupported architecture"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
@sandip4n
sandip4n / esp8266-ntp-clock.ino
Created October 22, 2020 11:07
#undef __DEBUG__
/*
* Connections
* NodeMCU D1 --> I2C LCD SCL
* NodeMCU D2 --> I2C LCD SDA
* NodeMCU VIN --> I2C LCD VCC
* NodeMCU GND --> I2C LCD GND
*
* P.S. This assumes that the NodeMCU board is powered
@sandip4n
sandip4n / pages-demo.c
Last active July 28, 2021 09:22
/*
* SPDX-License-Identifier: GPL-2.0-or-later
* Author: Sandipan Das
*/
#if !defined(__x86_64__) && !defined(__powerpc64__)
#error "unsupported architecture"
#endif
#define _GNU_SOURCE
@sandip4n
sandip4n / run-mbw.sh
Created October 7, 2020 10:21
#!/usr/bin/fish
if not set -q argv[1]; or not set -q argv[2]; or not set -q argv[3]; or not set -q argv[4]
echo "usage: run-mbw <instances> <node> <iterations> <size>"
exit 1
end
for i in (seq $argv[1])
set result[$i] (mktemp)
numactl --cpunodebind=$argv[2] --membind=$argv[2] mbw -b 65536 -n $argv[3] $argv[4] > $result[$i] &
@sandip4n
sandip4n / page-demo.c
Created September 20, 2020 10:10
#ifndef __powerpc64__
#error "unsupported architecture"
#endif
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
@sandip4n
sandip4n / vma-coverage.c
Created May 27, 2020 02:02
/*
* Compile as:
* powerpc64-linux-gnu-gcc -o vma-coverage -g -O0 \
* -mcpu=powerpc64 -mno-altivec \
* -mno-vsx -nostdlib -static \
* vma-coverage.c
*/
#ifndef __powerpc64__
#error "unsupported architecture"
@sandip4n
sandip4n / mmap-jump.c
Created May 11, 2020 03:43
#ifndef __powerpc64__
#error "unsupported architecture"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <unistd.h>
#include <sys/mman.h>
@sandip4n
sandip4n / glibc-ppc64-vector-free.patch
Created April 28, 2020 15:15
diff --git a/sysdeps/powerpc/powerpc64/multiarch/bcopy.c b/sysdeps/powerpc/powerpc64/multiarch/bcopy.c
index 2aebfc0a8e..5163cdeea3 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/bcopy.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/bcopy.c
@@ -24,6 +24,8 @@ extern __typeof (bcopy) __bcopy_ppc attribute_hidden;
extern __typeof (bcopy) __bcopy_power7 attribute_hidden;
libc_ifunc (bcopy,
+ (hwcap2 & PPC_FEATURE2_ARCH_3_00)
+ ? __bcopy_ppc :
@sandip4n
sandip4n / radix-stress.c
Created April 28, 2020 14:51
/*
* Compile as:
* powerpc64-linux-gnu-gcc -o radix-stress -g -O0 \
* -mcpu=powerpc64 -mno-altivec \
* -mno-vsx -nostdlib -static \
* radix-stress.c
*/
#ifndef __powerpc64__
#error "unsupported architecture"