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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2010 Thomas Martitz, Andree Buschmann
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "plugin.h"
PLUGIN_HEADER
#if PLUGIN_BUFFER_SIZE <= 0x8000
#define BUF_SIZE (1<<12) /* 16 KB = (1<<12)*sizeof(int) */
#else
#define BUF_SIZE (1<<13) /* 32 KB = (1<<13)*sizeof(int) */
#endif
#define LOOP_REPEAT_DRAM 256
static volatile int buf_dram[BUF_SIZE];
#if defined(PLUGIN_USE_IRAM)
#define LOOP_REPEAT_IRAM 1024
static volatile int buf_iram[BUF_SIZE] IBSS_ATTR;
#endif
/* (Byte per loop * loops)>>20 * ticks per s * 10 / ticks = dMB per s */
#define dMB_PER_SEC(cnt, delta) ((((BUF_SIZE*sizeof(int)*cnt)>>20)*HZ*10)/delta)
void memset_test(volatile int *buf, int buf_size, int loop_cnt,
int line, char *ramtype)
{
int delta, dMB, i;
int last_tick = *rb->current_tick;
for(i=0; i < loop_cnt; i++)
{
memset((void *)buf, 0xff, buf_size*sizeof(int));
}
delta = *rb->current_tick - last_tick;
delta = delta>0 ? delta : delta+1;
dMB = dMB_PER_SEC(loop_cnt, delta);
rb->screens[0]->putsf(0, line, "%s st: %3d.%d MB/s (%3d ticks for %d MB)",
ramtype, dMB/10, dMB%10, delta,
(loop_cnt*BUF_SIZE*4)>>20);
}
void memcpy_test(volatile int *buf, int buf_size, int loop_cnt,
int line, char *ramtype)
{
int delta, dMB, i;
int last_tick = *rb->current_tick;
/* double loop count to compensate for half size memcpy */
for(i=0; i < loop_cnt*2; i++)
{
memcpy((void *)buf+(buf_size*sizeof(int)/2),
(void *)buf, buf_size*sizeof(int)/2);
}
delta = *rb->current_tick - last_tick;
delta = delta>0 ? delta : delta+1;
dMB = dMB_PER_SEC(loop_cnt, delta);
rb->screens[0]->putsf(0, line, "%s cp: %3d.%d MB/s (%3d ticks for %d MB)",
ramtype, dMB/10, dMB%10, delta,
(loop_cnt*BUF_SIZE*4)>>21);
}
void write_test(volatile int *buf, int buf_size, int loop_cnt,
int line, char *ramtype)
{
int delta, dMB;
int last_tick = *rb->current_tick;
#if defined(CPU_ARM)
asm volatile (
"mov r0, #0 \n"
"mov r1, #1 \n"
"mov r2, #2 \n"
"mov r3, #3 \n"
"mov r6, %[loops] \n"
".outer_loop_read: \n"
"mov r4, %[buf_p] \n"
"mov r5, %[size] \n"
".inner_loop_read: \n"
"stmia r4!, {r0-r3} \n"
"stmia r4!, {r0-r3} \n"
"subs r5, r5, #8 \n"
"bgt .inner_loop_read \n"
"subs r6, r6, #1 \n"
"bgt .outer_loop_read \n"
:
: [loops] "r" (loop_cnt), [size] "r" (buf_size), [buf_p] "r" (buf)
: "r0", "r1", "r2", "r3", "r4", "r5", "r6", "memory", "cc"
);
#else
int i, j;
for(i = 0; i < loop_cnt; i++)
{
for (j = 0; j < buf_size; j+=4)
{
buf[j ] = j;
buf[j+1] = j+1;
buf[j+2] = j+2;
buf[j+3] = j+3;
}
}
#endif
delta = *rb->current_tick - last_tick;
delta = delta>0 ? delta : delta+1;
dMB = dMB_PER_SEC(loop_cnt, delta);
rb->screens[0]->putsf(0, line, "%s wr: %3d.%d MB/s (%3d ticks for %d MB)",
ramtype, dMB/10, dMB%10, delta,
(loop_cnt*BUF_SIZE*4)>>20);
}
void read_test(volatile int *buf, int buf_size, int loop_cnt,
int line, char *ramtype)
{
int delta, dMB;
int last_tick = *rb->current_tick;
#if defined(CPU_ARM)
asm volatile (
"mov r6, %[loops] \n"
".outer_loop_write: \n"
"mov r4, %[buf_p] \n"
"mov r5, %[size] \n"
".inner_loop_write: \n"
"ldmia r4!, {r0-r3} \n"
"ldmia r4!, {r0-r3} \n"
"subs r5, r5, #8 \n"
"bgt .inner_loop_write \n"
"subs r6, r6, #1 \n"
"bgt .outer_loop_write \n"
:
: [loops] "r" (loop_cnt), [size] "r" (buf_size), [buf_p] "r" (buf)
: "r0", "r1", "r2", "r3", "r4", "r5", "r6", "memory", "cc"
);
#else
int i, j, x;
for(i = 0; i < loop_cnt; i++)
{
for(j = 0; j < buf_size; j+=4)
{
x = buf[j ];
x = buf[j+2];
x = buf[j+3];
x = buf[j+4];
}
}
#endif
delta = *rb->current_tick - last_tick;
delta = delta>0 ? delta : delta+1;
dMB = dMB_PER_SEC(loop_cnt, delta);
rb->screens[0]->putsf(0, line, "%s rd: %3d.%d MB/s (%3d ticks for %d MB)",
ramtype, dMB/10, dMB%10, delta,
(loop_cnt*BUF_SIZE*4)>>20);
}
enum plugin_status plugin_start(const void* parameter)
{
(void)parameter;
bool done = false;
bool boost = false;
int count = 0;
#ifdef HAVE_LCD_BITMAP
rb->lcd_setfont(FONT_SYSFIXED);
#endif
rb->screens[0]->clear_display();
rb->screens[0]->putsf(0, 0, "patience, may take some seconds...");
rb->screens[0]->update();
while (!done)
{
int line = 0;
rb->screens[0]->clear_display();
rb->screens[0]->putsf(0, line++, "%s", boost?"boosted":"unboosted");
#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
rb->screens[0]->putsf(0, line++, "clock: %d Hz", *rb->cpu_frequency);
#endif
rb->screens[0]->putsf(0, line++, "loop#: %d", ++count);
read_test (buf_dram, BUF_SIZE, LOOP_REPEAT_DRAM, line++, "DRAM");
write_test (buf_dram, BUF_SIZE, LOOP_REPEAT_DRAM, line++, "DRAM");
memset_test(buf_dram, BUF_SIZE, LOOP_REPEAT_DRAM, line++, "DRAM");
memcpy_test(buf_dram, BUF_SIZE, LOOP_REPEAT_DRAM, line++, "DRAM");
#if defined(PLUGIN_USE_IRAM)
read_test (buf_iram, BUF_SIZE, LOOP_REPEAT_IRAM, line++, "IRAM");
write_test (buf_iram, BUF_SIZE, LOOP_REPEAT_IRAM, line++, "IRAM");
memset_test(buf_iram, BUF_SIZE, LOOP_REPEAT_DRAM, line++, "IRAM");
memcpy_test(buf_iram, BUF_SIZE, LOOP_REPEAT_DRAM, line++, "IRAM");
#endif
rb->screens[0]->update();
switch (rb->get_action(CONTEXT_STD, HZ/5))
{
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
case ACTION_STD_PREV:
if (!boost)
{
rb->cpu_boost(true);
boost = true;
}
break;
case ACTION_STD_NEXT:
if (boost)
{
rb->cpu_boost(false);
boost = false;
}
break;
#endif
case ACTION_STD_CANCEL:
done = true;
break;
}
}
return PLUGIN_OK;
}
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