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/*
* Copyright © 2019 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include "igt.h"
#include <stdbool.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <inttypes.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/time.h>
#include "drm.h"
#include "i915/gem.h"
#include "i915/gem_create.h"
IGT_TEST_DESCRIPTION("A very simple workload for the HuC.");
#define HUC_COPY_DATA_BUF_SIZE 4096
static void
compare_huc_copy_result(int drm_fd, uint32_t src_handle, uint32_t dst_handle)
{
char src_output[HUC_COPY_DATA_BUF_SIZE];
char dst_output[HUC_COPY_DATA_BUF_SIZE];
gem_read(drm_fd, src_handle, 0, src_output, HUC_COPY_DATA_BUF_SIZE);
gem_read(drm_fd, dst_handle, 0, dst_output, HUC_COPY_DATA_BUF_SIZE);
for (int i = 0; i < HUC_COPY_DATA_BUF_SIZE; i++)
igt_assert_f(src_output[i] == dst_output[i],
"Exepected %c, found %c at %4d.\n",
src_output[i], dst_output[i], i);
}
static int get_huc_status(int fd, int *status)
{
drm_i915_getparam_t gp = {
.param = I915_PARAM_HUC_STATUS,
.value = status,
};
if (igt_ioctl(fd, DRM_IOCTL_I915_GETPARAM, &gp))
return -errno;
errno = 0;
return errno;
}
static void test_huc_load(int fd)
{
int err;
int status = 0;
err = get_huc_status(fd, &status);
igt_skip_on_f(err == -ENODEV,
"HuC is not present on this platform!\n");
igt_skip_on_f(err == -EOPNOTSUPP,
"HuC firmware is disabled!\n");
igt_fail_on_f(err < 0, "HuC firmware loading error: %i, %s\n",
-err, strerror(-err));
igt_fail_on_f(status == 0, "HuC firmware is not running!\n");
}
igt_main
{
int drm_fd = -1;
uint32_t devid;
igt_huc_copyfunc_t huc_copy;
uint64_t ahnd;
igt_fixture {
drm_fd = drm_open_driver(DRIVER_INTEL);
igt_require_gem(drm_fd);
devid = intel_get_drm_devid(drm_fd);
huc_copy = igt_get_huc_copyfunc(devid);
igt_require_f(huc_copy, "no huc_copy function\n");
ahnd = get_reloc_ahnd(drm_fd, 0);
}
igt_describe("Make sure that Huc firmware works"
"by copying a char array using Huc"
"and verifying the copied result");
igt_subtest("huc-copy") {
char inputs[HUC_COPY_DATA_BUF_SIZE];
struct drm_i915_gem_exec_object2 obj[3];
uint64_t objsize[3] = { HUC_COPY_DATA_BUF_SIZE,
HUC_COPY_DATA_BUF_SIZE,
4096 };
test_huc_load(drm_fd);
/* Initialize src buffer randomly */
srand(time(NULL));
for (int i = 0; i < HUC_COPY_DATA_BUF_SIZE; i++)
inputs[i] = (char) (rand() % 256);
memset(obj, 0, sizeof(obj));
/* source buffer object for storing input */
obj[0].handle = gem_create(drm_fd, HUC_COPY_DATA_BUF_SIZE);
/* destination buffer object to receive input */
obj[1].handle = gem_create(drm_fd, HUC_COPY_DATA_BUF_SIZE);
/* execution buffer object */
obj[2].handle = gem_create(drm_fd, 4096);
gem_write(drm_fd, obj[0].handle, 0, inputs, HUC_COPY_DATA_BUF_SIZE);
huc_copy(drm_fd, ahnd, obj, objsize);
compare_huc_copy_result(drm_fd, obj[0].handle, obj[1].handle);
gem_close(drm_fd, obj[0].handle);
gem_close(drm_fd, obj[1].handle);
gem_close(drm_fd, obj[2].handle);
}
igt_fixture {
put_ahnd(ahnd);
close(drm_fd);
}
}
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