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/**
* Copyright (C) ARM Limited 2014. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include "MaliVideoDriver.h"
#include <unistd.h>
#include "Buffer.h"
#include "Counter.h"
#include "Logging.h"
#include "SessionData.h"
// From instr/src/mve_instr_comm_protocol.h
typedef enum mve_instr_configuration_type {
MVE_INSTR_RAW = 1 << 0,
MVE_INSTR_COUNTERS = 1 << 1,
MVE_INSTR_EVENTS = 1 << 2,
MVE_INSTR_ACTIVITIES = 1 << 3,
// Raw always pushed regardless
MVE_INSTR_PULL = 1 << 12,
// Raw always unpacked regardless
MVE_INSTR_PACKED_COMM = 1 << 13,
// Don’t send ACKt response
MVE_INSTR_NO_AUTO_ACK = 1 << 14,
} mve_instr_configuration_type_t;
static const char COUNTER[] = "ARM_Mali-V500_cnt";
static const char EVENT[] = "ARM_Mali-V500_evn";
static const char ACTIVITY[] = "ARM_Mali-V500_act";
class MaliVideoCounter {
public:
MaliVideoCounter(MaliVideoCounter *next, const char *name, const MaliVideoCounterType type, const int id) : mNext(next), mName(name), mType(type), mId(id), mKey(getEventKey()), mEnabled(false) {
}
~MaliVideoCounter() {
delete mName;
}
MaliVideoCounter *getNext() const { return mNext; }
const char *getName() const { return mName; }
MaliVideoCounterType getType() const { return mType; }
int getId() const { return mId; }
int getKey() const { return mKey; }
bool isEnabled() const { return mEnabled; }
void setEnabled(const bool enabled) { mEnabled = enabled; }
private:
MaliVideoCounter *const mNext;
const char *const mName;
const MaliVideoCounterType mType;
// Mali Video id
const int mId;
// Streamline key
const int mKey;
bool mEnabled;
};
MaliVideoDriver::MaliVideoDriver() : mCounters(NULL), mActivityCount(0) {
}
MaliVideoDriver::~MaliVideoDriver() {
while (mCounters != NULL) {
MaliVideoCounter *counter = mCounters;
mCounters = counter->getNext();
delete counter;
}
}
void MaliVideoDriver::setup(mxml_node_t *const xml) {
// hwmon does not currently work with perf
if (gSessionData->perf.isSetup()) {
return;
}
mxml_node_t *node = xml;
while (true) {
node = mxmlFindElement(node, xml, "event", NULL, NULL, MXML_DESCEND);
if (node == NULL) {
break;
}
const char *counter = mxmlElementGetAttr(node, "counter");
if (counter == NULL) {
// Ignore
} else if (strncmp(counter, COUNTER, sizeof(COUNTER) - 1) == 0) {
const int i = strtol(counter + sizeof(COUNTER) - 1, NULL, 10);
mCounters = new MaliVideoCounter(mCounters, strdup(counter), MVCT_COUNTER, i);
} else if (strncmp(counter, EVENT, sizeof(EVENT) - 1) == 0) {
const int i = strtol(counter + sizeof(EVENT) - 1, NULL, 10);
mCounters = new MaliVideoCounter(mCounters, strdup(counter), MVCT_EVENT, i);
} else if (strcmp(counter, ACTIVITY) == 0) {
mCounters = new MaliVideoCounter(mCounters, strdup(ACTIVITY), MVCT_ACTIVITY, 0);
mActivityCount = 0;
while (true) {
char buf[32];
snprintf(buf, sizeof(buf), "activity%i", mActivityCount + 1);
if (mxmlElementGetAttr(node, buf) == NULL) {
break;
}
++mActivityCount;
}
}
}
}
MaliVideoCounter *MaliVideoDriver::findCounter(const Counter &counter) const {
for (MaliVideoCounter *maliVideoCounter = mCounters; maliVideoCounter != NULL; maliVideoCounter = maliVideoCounter->getNext()) {
if (strcmp(maliVideoCounter->getName(), counter.getType()) == 0) {
return maliVideoCounter;
}
}
return NULL;
}
bool MaliVideoDriver::claimCounter(const Counter &counter) const {
return findCounter(counter) != NULL;
}
bool MaliVideoDriver::countersEnabled() const {
for (MaliVideoCounter * counter = mCounters; counter != NULL; counter = counter->getNext()) {
if (counter->isEnabled()) {
return true;
}
}
return false;
}
void MaliVideoDriver::resetCounters() {
for (MaliVideoCounter * counter = mCounters; counter != NULL; counter = counter->getNext()) {
counter->setEnabled(false);
}
}
void MaliVideoDriver::setupCounter(Counter &counter) {
MaliVideoCounter *const maliVideoCounter = findCounter(counter);
if (maliVideoCounter == NULL) {
counter.setEnabled(false);
return;
}
maliVideoCounter->setEnabled(true);
counter.setKey(maliVideoCounter->getKey());
}
int MaliVideoDriver::writeCounters(mxml_node_t *root) const {
if (access("/dev/mv500", F_OK) != 0) {
return 0;
}
int count = 0;
for (MaliVideoCounter * counter = mCounters; counter != NULL; counter = counter->getNext()) {
mxml_node_t *node = mxmlNewElement(root, "counter");
mxmlElementSetAttr(node, "name", counter->getName());
++count;
}
return count;
}
void MaliVideoDriver::marshalEnable(const MaliVideoCounterType type, char *const buf, const size_t bufsize, int &pos) {
// size
int numEnabled = 0;
for (MaliVideoCounter * counter = mCounters; counter != NULL; counter = counter->getNext()) {
if (counter->isEnabled() && (counter->getType() == type)) {
++numEnabled;
}
}
Buffer::packInt(buf, bufsize, pos, numEnabled*sizeof(uint32_t));
for (MaliVideoCounter * counter = mCounters; counter != NULL; counter = counter->getNext()) {
if (counter->isEnabled() && (counter->getType() == type)) {
Buffer::packInt(buf, bufsize, pos, counter->getId());
}
}
}
bool MaliVideoDriver::start(const int mveUds) {
char buf[256];
int pos = 0;
// code - MVE_INSTR_STARTUP
buf[pos++] = 'C';
buf[pos++] = 'L';
buf[pos++] = 'N';
buf[pos++] = 'T';
// size
Buffer::packInt(buf, sizeof(buf), pos, sizeof(uint32_t));
// client_version_number
Buffer::packInt(buf, sizeof(buf), pos, 1);
// code - MVE_INSTR_CONFIGURE
buf[pos++] = 'C';
buf[pos++] = 'N';
buf[pos++] = 'F';
buf[pos++] = 'G';
// size
Buffer::packInt(buf, sizeof(buf), pos, 5*sizeof(uint32_t));
// configuration
Buffer::packInt(buf, sizeof(buf), pos, MVE_INSTR_COUNTERS | MVE_INSTR_EVENTS | MVE_INSTR_ACTIVITIES | MVE_INSTR_PACKED_COMM);
// communication_protocol_version
Buffer::packInt(buf, sizeof(buf), pos, 1);
// data_protocol_version
Buffer::packInt(buf, sizeof(buf), pos, 1);
// sample_rate - convert samples/second to ms/sample
Buffer::packInt(buf, sizeof(buf), pos, 1000/gSessionData->mSampleRate);
// live_rate - convert ns/flush to ms/flush
Buffer::packInt(buf, sizeof(buf), pos, gSessionData->mLiveRate/1000000);
// code - MVE_INSTR_ENABLE_COUNTERS
buf[pos++] = 'C';
buf[pos++] = 'F';
buf[pos++] = 'G';
buf[pos++] = 'c';
marshalEnable(MVCT_COUNTER, buf, sizeof(buf), pos);
// code - MVE_INSTR_ENABLE_EVENTS
buf[pos++] = 'C';
buf[pos++] = 'F';
buf[pos++] = 'G';
buf[pos++] = 'e';
marshalEnable(MVCT_EVENT, buf, sizeof(buf), pos);
/*
// code - MVE_INSTR_ENABLE_ACTIVITIES
buf[pos++] = 'C';
buf[pos++] = 'F';
buf[pos++] = 'G';
buf[pos++] = 'a';
// size
Buffer::packInt(buf, sizeof(buf), pos, mActivityCount*sizeof(uint32_t));
for (int i = 0; i < mActivityCount; ++i) {
// activity_id
Buffer::packInt(buf, sizeof(buf), pos, i);
}
*/
int written = 0;
while (written < pos) {
size_t bytes = ::write(mveUds, buf + written, pos - written);
if (bytes <= 0) {
logg->logMessage("%s(%s:%i): write failed", __FUNCTION__, __FILE__, __LINE__);
return false;
}
written += bytes;
}
return true;
}
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