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/* -*- c++ -*- */
/*
* Copyright 2008 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio 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 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <gc_declare_proc.h>
#include <string.h>
#include <stdio.h>
#include <spu_intrinsics.h>
#include <spu_mfcio.h>
#define MAX_QA_BYTES 1024
#define MAX_OFFSET 32
#define ALIGNMENT 16
#define K 0xA5
// FIXME should be passed at gcell init time
//static const int TIMEBASE = 79800000; // ps3
static const int TIMEBASE = 26666666; // qs21
typedef void* (*memset_fptr)(void *s, int val, size_t n);
void *
memset_ref(void *sv, int c, size_t n)
{
unsigned char *s = (unsigned char *) sv;
size_t i;
for (i = 0; i < n; i++)
s[i] = c;
return sv;
}
static bool
check_before(unsigned char *buf, size_t len, size_t offset)
{
unsigned char *p = buf + sizeof(vector unsigned char) + offset;
bool ok = true;
int i;
for (i = -16; i < 0; i++){
unsigned char expected = (&p[i] - buf) & 0xff;
if (p[i] != expected){
printf("b:memset(%p, 0x%x, %zu) <offset %2zd> [%3d] expected %02x, got %02x\n",
p, K, len, offset, i, K, p[i]);
ok = false;
}
}
return ok;
}
static bool
check_middle(unsigned char *buf, size_t len, size_t offset)
{
unsigned char *p = buf + sizeof(vector unsigned char) + offset;
bool ok = true;
size_t i;
for (i = 0; i < len; i++){
unsigned char expected = K;
if (p[i] != expected){
printf("m:memset(%p, 0x%x, %zu) <offset %2zd> [%3zd] expected %02x, got %02x\n",
p, K, len, offset, i, expected, p[i]);
ok = false;
}
}
return ok;
}
static bool
check_after(unsigned char *buf, size_t len, size_t offset)
{
unsigned char *p = buf + sizeof(vector unsigned char) + offset;
bool ok = true;
size_t i;
for (i = len; i < len + 16; i++){
unsigned char expected = (&p[i] - buf) & 0xff;
if (p[i] != expected){
printf("a:memset(%p, 0x%x, %zu) <offset %2zd> [%3zd] expected %02x, got %02x\n",
p, K, len, offset, i, expected, p[i]);
ok = false;
}
}
return ok;
}
static bool
test_memset_aux(memset_fptr f,
unsigned char *buf, size_t buflen, size_t len, size_t offset)
{
size_t i;
// init buffer to non-zero known state
for (i = 0; i < buflen; i++)
buf[i] = i;
// Our working buffer. Starts 16 bytes + offset into buf.
// We offset by 16 so that we can see if data before is getting damaged.
unsigned char *p = buf + sizeof(vector unsigned char) + offset;
(*f)(p, K, len);
bool ok = true;
ok &= check_before(buf, len, offset);
ok &= check_middle(buf, len, offset);
ok &= check_after(buf, len, offset);
return ok;
}
bool
test_memset(memset_fptr f)
{
size_t BUFLEN = MAX_QA_BYTES + 2*sizeof(vector unsigned char) + MAX_OFFSET;
unsigned char unaligned_buf[BUFLEN + ALIGNMENT -1];
unsigned char *aligned_buf =
(unsigned char *)((((intptr_t) unaligned_buf) + ALIGNMENT - 1) & -ALIGNMENT);
// printf("unaligned = %p\n", unaligned_buf);
// printf("aligned = %p\n", aligned_buf);
size_t len;
size_t offset;
bool ok = true;
for (len = 0; len < MAX_QA_BYTES; len++){
for (offset = 0; offset <= MAX_OFFSET; offset++){
ok &= test_memset_aux(f, aligned_buf, BUFLEN, len, offset);
}
}
return ok;
}
// returns bytes/s
float
benchmark_memset(memset_fptr f, bool aligned)
{
static const int SIZE = 32768;
unsigned char buf[SIZE];
uint32_t t0, t1;
int nbytes;
spu_write_decrementer(0xffffffff);
if (aligned){
nbytes = SIZE;
t0 = spu_read_decrementer();
(*f)(buf, 0x55, nbytes);
(*f)(buf, 0x55, nbytes);
(*f)(buf, 0x55, nbytes);
(*f)(buf, 0x55, nbytes);
t1 = spu_read_decrementer();
}
else {
nbytes = SIZE - 2;
t0 = spu_read_decrementer();
(*f)(buf + 1, 0x55, nbytes);
(*f)(buf + 1, 0x55, nbytes);
(*f)(buf + 1, 0x55, nbytes);
(*f)(buf + 1, 0x55, nbytes);
t1 = spu_read_decrementer();
}
//printf("delta ticks: %d\n", t0 - t1);
return (float) nbytes * 4 / ((t0 - t1) * 1.0/TIMEBASE);
}
/*
* Implement the standard QA stub.
* No input arguments, 1 bool output.
*/
static void
gcs_qa_memset(const gc_job_direct_args_t *input _UNUSED,
gc_job_direct_args_t *output,
const gc_job_ea_args_t *eaa _UNUSED)
{
bool ok = test_memset(memset);
output->arg[0].u32 = ok;
}
GC_DECLARE_PROC(gcs_qa_memset, "qa_memset");
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