diff options
Diffstat (limited to 'tools/gator/daemon/MaliVideoDriver.cpp')
-rw-r--r-- | tools/gator/daemon/MaliVideoDriver.cpp | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/tools/gator/daemon/MaliVideoDriver.cpp b/tools/gator/daemon/MaliVideoDriver.cpp new file mode 100644 index 000000000000..5eef2643ab15 --- /dev/null +++ b/tools/gator/daemon/MaliVideoDriver.cpp @@ -0,0 +1,191 @@ +/** + * 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 DriverCounter { +public: + MaliVideoCounter(DriverCounter *next, const char *name, const MaliVideoCounterType type, const int id) : DriverCounter(next, name), mType(type), mId(id) { + } + + ~MaliVideoCounter() { + } + + MaliVideoCounterType getType() const { return mType; } + int getId() const { return mId; } + +private: + const MaliVideoCounterType mType; + // Mali Video id + const int mId; +}; + +MaliVideoDriver::MaliVideoDriver() { +} + +MaliVideoDriver::~MaliVideoDriver() { +} + +void MaliVideoDriver::readEvents(mxml_node_t *const xml) { + 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); + setCounters(new MaliVideoCounter(getCounters(), strdup(counter), MVCT_COUNTER, i)); + } else if (strncmp(counter, EVENT, sizeof(EVENT) - 1) == 0) { + const int i = strtol(counter + sizeof(EVENT) - 1, NULL, 10); + setCounters(new MaliVideoCounter(getCounters(), strdup(counter), MVCT_EVENT, i)); + } else if (strncmp(counter, ACTIVITY, sizeof(ACTIVITY) - 1) == 0) { + const int i = strtol(counter + sizeof(ACTIVITY) - 1, NULL, 10); + setCounters(new MaliVideoCounter(getCounters(), strdup(counter), MVCT_ACTIVITY, i)); + } + } +} + +int MaliVideoDriver::writeCounters(mxml_node_t *root) const { + if (access("/dev/mv500", F_OK) != 0) { + return 0; + } + + return super::writeCounters(root); +} + +void MaliVideoDriver::marshalEnable(const MaliVideoCounterType type, char *const buf, const size_t bufsize, int &pos) { + // size + int numEnabled = 0; + for (MaliVideoCounter *counter = static_cast<MaliVideoCounter *>(getCounters()); counter != NULL; counter = static_cast<MaliVideoCounter *>(counter->getNext())) { + if (counter->isEnabled() && (counter->getType() == type)) { + ++numEnabled; + } + } + Buffer::packInt(buf, bufsize, pos, numEnabled*sizeof(uint32_t)); + for (MaliVideoCounter *counter = static_cast<MaliVideoCounter *>(getCounters()); counter != NULL; counter = static_cast<MaliVideoCounter *>(counter->getNext())) { + if (counter->isEnabled() && (counter->getType() == type)) { + Buffer::packInt(buf, bufsize, pos, counter->getId()); + } + } +} + +static bool writeAll(const int mveUds, const char *const buf, const int pos) { + 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; +} + +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'; + marshalEnable(MVCT_ACTIVITY, buf, sizeof(buf), pos); + + return writeAll(mveUds, buf, pos); +} + +void MaliVideoDriver::stop(const int mveUds) { + char buf[8]; + int pos = 0; + + // code - MVE_INSTR_STOP + buf[pos++] = 'S'; + buf[pos++] = 'T'; + buf[pos++] = 'O'; + buf[pos++] = 'P'; + marshalEnable(MVCT_COUNTER, buf, sizeof(buf), pos); + + writeAll(mveUds, buf, pos); + + close(mveUds); +} |