lib/magma/src/tools/info.cc

// Copyright 2017 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h> // for close

#include <fuchsia/gpu/magma/c/fidl.h>
#include <lib/fdio/unsafe.h>

#include "magma_util/macros.h"

const char* kGpuDeviceName = "/dev/class/gpu/000";

int main(int argc, char** argv)
{
    int fd = open(kGpuDeviceName, O_RDONLY);
    if (fd < 0) {
        printf("Failed to open magma device %s\n", kGpuDeviceName);
        return -1;
    }

    uint32_t dump_type = 0;
    if (argc >= 2) {
        dump_type = atoi(argv[1]);
    }

    fdio_t* fdio = fdio_unsafe_fd_to_io(fd);
    if (!fdio) {
        printf("invalid fd: %d", fd);
        return -1;
    }

    zx_status_t status =
        fuchsia_gpu_magma_DeviceDumpState(fdio_unsafe_borrow_channel(fdio), dump_type);
    fdio_unsafe_release(fdio);

    if (status != ZX_OK) {
        printf("magma_DeviceDumpStatus failed: %d", status);
        return -1;
    }
    magma::log(magma::LOG_INFO, "Dumping system driver status to system log");

    close(fd);
    return 0;
}