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/*
* Copyright © 2017 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 "config.h"
#include "igt.h"
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <libgen.h>
#include <unistd.h>
#ifdef __linux__
#include <linux/limits.h>
#endif
#define TOOLS "../tools/"
struct line_check {
int found;
const char *substr;
};
/**
* Our igt_log_buffer_inspect handler. Checks the output of the
* intel_l3_parity tool and increments line_check::found if a specific
* substring is found.
*/
static bool check_cmd_output(const char *line, void *data)
{
struct line_check *check = data;
if (strstr(line, check->substr)) {
check->found++;
}
return false;
}
static void assert_cmd_success(int exec_return)
{
igt_skip_on_f(exec_return == IGT_EXIT_SKIP,
"intel_l3_parity not supported\n");
igt_assert_eq(exec_return, IGT_EXIT_SUCCESS);
}
static bool chdir_to_tools_dir(void)
{
char path[PATH_MAX];
char *cwd;
cwd = getcwd(NULL, 0);
igt_info("Current working directory: %s\n", cwd);
free(cwd);
/* Try TOOLS relative to cwd */
igt_info("Trying to cd to %s\n", TOOLS);
if (chdir(TOOLS) == 0)
return true;
igt_info("Failed to cd to %s\n", TOOLS);
/* Try TOOLS and install dir relative to test binary */
memset(path, 0, sizeof(path)); /* readlink() does not append NUL */
if (readlink("/proc/self/exe", path, sizeof(path)-1) > 0) {
igt_info("/proc/self/exe point to %s, going to dirname()\n", path);
chdir(dirname(path));
}
cwd = getcwd(NULL, 0);
igt_info("Current working directory: %s\n", cwd);
free(cwd);
igt_info("Trying to cd to %s or ../../bin\n", TOOLS);
return chdir(TOOLS) == 0 || chdir("../../bin") == 0;
}
igt_main
{
igt_fixture {
char *path;
igt_require_f(chdir_to_tools_dir(),
"Unable to determine the tools directory, expecting them in $cwd/" TOOLS " or $path/" TOOLS "\n");
path = getcwd(NULL, 0);
igt_info("Using tools from %s\n", path);
free(path);
}
igt_subtest("sysfs_l3_parity") {
int exec_return;
struct line_check line;
igt_require(access("intel_l3_parity", X_OK) == 0);
/* Sanity check that l3 parity tool is usable: Enable
* row,bank,subbank 0,0,0.
*
* TODO: Better way to find intel_l3_parity. This path
* is relative to piglit's path, when run through
* piglit.
*/
igt_system_cmd(exec_return,
"./intel_l3_parity -r 0 -b 0 "
"-s 0 -e");
assert_cmd_success(exec_return);
/* Disable row,bank,subbank 0,0,0. */
igt_system_cmd(exec_return,
"./intel_l3_parity -r 0 -b 0 "
"-s 0 -d");
assert_cmd_success(exec_return);
/* Check that disabling was successful */
igt_system_cmd(exec_return,
"./intel_l3_parity -l");
assert_cmd_success(exec_return);
line.substr = "Row 0, Bank 0, Subbank 0 is disabled";
line.found = 0;
igt_log_buffer_inspect(check_cmd_output, &line);
igt_assert_eq(line.found, 1);
/* Re-enable row,bank,subbank 0,0,0 */
igt_system_cmd(exec_return,
"./intel_l3_parity -r 0 -b 0 "
"-s 0 -e");
assert_cmd_success(exec_return);
/* Check that re-enabling was successful:
* intel_l3_parity -l should now not print that Row 0,
* Bank 0, Subbank 0 is disabled.
*
* The previously printed line is already in the log
* buffer so we check for count 1.
*/
igt_system_cmd(exec_return,
"./intel_l3_parity -l");
assert_cmd_success(exec_return);
line.substr = "Row 0, Bank 0, Subbank 0 is disabled";
line.found = 0;
igt_log_buffer_inspect(check_cmd_output,
&line);
igt_assert_eq(line.found, 1);
}
igt_subtest("tools_test") {
igt_require(access("intel_reg", X_OK) == 0);
igt_assert_eq(igt_system_quiet("./intel_reg read 0x4030"),
IGT_EXIT_SUCCESS);
igt_assert_eq(igt_system_quiet("./intel_reg dump"),
IGT_EXIT_SUCCESS);
}
}
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