[igt-dev] [PATCH V2] tests/amdgpu: Add amdgpu module reload test
Rodrigo Siqueira
Rodrigo.Siqueira at amd.com
Wed Jun 16 22:08:19 UTC 2021
On 06/16, Anson Jacob wrote:
> From: Victor Lu <victorchengchi.lu at amd.com>
>
> Test to ensure unloading and loading of amdgpu driver works
>
> Tested on:
> ASIC: NAVI14
>
> Changes since v1:
> * Added documentaion
> * Updated commit message
>
> Signed-off-by: Victor Lu <victorchengchi.lu at amd.com>
> Co-developed-by: Anson Jacob <Anson.Jacob at amd.com>
> Cc: Petri Latvala <petri.latvala at intel.com>
> Cc: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
> Cc: Harry Wentland <harry.wentland at amd.com>
> Cc: Mark Yacoub <markyacoub at google.com>
> ---
> lib/igt_kmod.c | 59 ++++++++++++++++++++++++
> lib/igt_kmod.h | 3 ++
> tests/amdgpu/amd_module_load.c | 83 ++++++++++++++++++++++++++++++++++
> tests/amdgpu/meson.build | 1 +
> 4 files changed, 146 insertions(+)
> create mode 100644 tests/amdgpu/amd_module_load.c
>
> diff --git a/lib/igt_kmod.c b/lib/igt_kmod.c
> index 55295fa5d09d..10e983844066 100644
> --- a/lib/igt_kmod.c
> +++ b/lib/igt_kmod.c
> @@ -433,6 +433,65 @@ igt_i915_driver_unload(void)
> return IGT_EXIT_SUCCESS;
> }
>
> +/**
> + * igt_amdgpu_driver_load:
> + * @opts: options to pass to amdgpu driver
> + *
> + * Returns: IGT_EXIT_SUCCESS or IGT_EXIT_FAILURE.
> + *
> + * Loads the amdgpu driver and its dependencies.
> + *
> + */
> +int
> +igt_amdgpu_driver_load(const char *opts)
> +{
> + if (opts)
> + igt_info("Reloading amdgpu with %s\n\n", opts);
> +
> + if (igt_kmod_load("amdgpu", opts)) {
> + igt_warn("Could not load amdgpu\n");
> + return IGT_EXIT_FAILURE;
> + }
> +
> + bind_fbcon(true);
> +
> + return IGT_EXIT_SUCCESS;
> +}
> +
> +/**
> + * igt_amdgpu_driver_unload:
> + *
> + * Returns: IGT_EXIT_SUCCESS on success, IGT_EXIT_FAILURE on failure
> + * and IGT_EXIT_SKIP if amdgpu could not be unloaded.
> + *
> + * Unloads the amdgpu driver and its dependencies.
> + *
> + */
> +int
> +igt_amdgpu_driver_unload(void)
> +{
> + bind_fbcon(false);
> +
> + if (igt_kmod_is_loaded("amdgpu")) {
> + if (igt_kmod_unload("amdgpu", 0)) {
> + igt_warn("Could not unload amdgpu\n");
> + igt_kmod_list_loaded();
> + igt_lsof("/dev/dri");
> + return IGT_EXIT_SKIP;
> + }
> + }
> +
> + igt_kmod_unload("drm_kms_helper", 0);
> + igt_kmod_unload("drm", 0);
> +
> + if (igt_kmod_is_loaded("amdgpu")) {
> + igt_warn("amdgpu.ko still loaded!\n");
> + return IGT_EXIT_FAILURE;
> + }
> +
> + return IGT_EXIT_SUCCESS;
> +}
> +
> static void kmsg_dump(int fd)
> {
> char record[4096 + 1];
> diff --git a/lib/igt_kmod.h b/lib/igt_kmod.h
> index c71ec147621a..04c87516f1e6 100644
> --- a/lib/igt_kmod.h
> +++ b/lib/igt_kmod.h
> @@ -39,6 +39,9 @@ int igt_kmod_unload(const char *mod_name, unsigned int flags);
> int igt_i915_driver_load(const char *opts);
> int igt_i915_driver_unload(void);
>
> +int igt_amdgpu_driver_load(const char *opts);
> +int igt_amdgpu_driver_unload(void);
> +
> void igt_kselftests(const char *module_name,
> const char *module_options,
> const char *result_option,
> diff --git a/tests/amdgpu/amd_module_load.c b/tests/amdgpu/amd_module_load.c
> new file mode 100644
> index 000000000000..77df96d50bb6
> --- /dev/null
> +++ b/tests/amdgpu/amd_module_load.c
> @@ -0,0 +1,83 @@
> +/*
> + * Copyright 2021 Advanced Micro Devices, Inc.
> + *
> + * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 "igt_kmod.h"
> +
> +#include <amdgpu.h>
> +#include <amdgpu_drm.h>
> +#include <sys/ioctl.h>
> +
> +/**
> + * sanity_check:
> + *
> + * Ensures the driver is able to respond to DRM_IOCTL_AMDGPU_INFO ioctl
> + * with a timeout.
> + *
> + */
> +static void sanity_check(void)
> +{
> + int err = 0;
> + int fd;
> + int arg_ret;
> + struct drm_amdgpu_info args = {0};
> +
> + args.return_pointer = (uintptr_t) &arg_ret;
> + args.return_size = sizeof(int);
> + args.query = AMDGPU_INFO_HW_IP_INFO;
> + args.query_hw_ip.type = AMDGPU_HW_IP_COMPUTE;
> +
> + fd = drm_open_driver(DRIVER_AMDGPU);
> + igt_set_timeout(1, "Module reload timeout!");
> +
> + if (ioctl(fd, DRM_IOCTL_AMDGPU_INFO, &args) < 0)
> + err = -errno;
> +
> + igt_set_timeout(0, NULL);
> + close(fd);
> +
> + igt_assert_eq(err, 0);
> +}
> +
> +igt_main
> +{
> + igt_describe("Make sure reloading amdgpu drivers works");
> + igt_subtest("reload") {
> + int err;
> + igt_amdgpu_driver_unload();
> +
> + err = igt_amdgpu_driver_load(NULL);
> +
> + igt_assert_eq(err, 0);
> +
> + sanity_check();
> +
> + igt_amdgpu_driver_unload();
> + }
> +
> + igt_fixture
> + {
> + /* load the module back in */
> + igt_amdgpu_driver_load(NULL);
> + }
> +}
> diff --git a/tests/amdgpu/meson.build b/tests/amdgpu/meson.build
> index b92aa22b78e6..84179410b8d3 100644
> --- a/tests/amdgpu/meson.build
> +++ b/tests/amdgpu/meson.build
> @@ -9,6 +9,7 @@ if libdrm_amdgpu.found()
> 'amd_cs_nop',
> 'amd_info',
> 'amd_prime',
> + 'amd_module_load',
> ]
> amdgpu_deps += libdrm_amdgpu
> endif
> --
> 2.25.1
>
lgtm, thanks
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
--
Rodrigo Siqueira
https://siqueira.tech
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: not available
URL: <https://lists.freedesktop.org/archives/igt-dev/attachments/20210616/9d5f6644/attachment.sig>
More information about the igt-dev
mailing list