| /* |
| * 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> |
| #include <linux/limits.h> |
| |
| #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]; |
| |
| /* Try TOOLS relative to cwd */ |
| if (chdir(TOOLS) == 0) |
| return true; |
| |
| /* Try TOOLS and install dir relative to test binary */ |
| if (readlink("/proc/self/exe", path, sizeof(path)) > 0) |
| chdir(dirname(path)); |
| |
| return chdir(TOOLS) == 0 || chdir("../../bin") == 0; |
| } |
| |
| igt_main |
| { |
| igt_skip_on_simulation(); |
| |
| 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 = get_current_dir_name(); |
| 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); |
| } |
| } |