[PATCH i-g-t v5 3/4] tests/xe_pm: Add d3-mmap IGT test
Nilawar, Badal
badal.nilawar at intel.com
Fri Jan 19 15:33:15 UTC 2024
On 19-01-2024 19:58, Anshuman Gupta wrote:
> Adding a test to validate mmap memory mappings along with runtime
> suspend and resume for both xe device and it's pci parent bridge
> in device hierarchy.
>
> v2:
> - Use 0xc00fee pattern. [Rodrigo]
> - Test the pagefault case on read and write the mapping. [Rodrigo]
>
> v3:
> - Cosmetic comment. [Kamil]
> - Use MAGIC macro for 0xc0ffe and 0xdeadbeef. [Kamil]
> - Fix xe_bo_create() with respect to Xe uapi.
> - Set auto_suspend delay to 1000ms and restore it.
>
> v4:
> - Set autosuspend delay to 1 sec for entire test. [Badal]
>
> Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
> Signed-off-by: Anshuman Gupta <anshuman.gupta at intel.com>
> Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
> ---
> tests/intel/xe_pm.c | 99 +++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 99 insertions(+)
>
> diff --git a/tests/intel/xe_pm.c b/tests/intel/xe_pm.c
> index f793fd24e..9cb25d47c 100644
> --- a/tests/intel/xe_pm.c
> +++ b/tests/intel/xe_pm.c
> @@ -30,6 +30,8 @@
> #define NO_RPM -1
>
> #define SIZE (4096 * 1024)
> +#define MAGIC_1 0xc0ffee
> +#define MAGIC_2 0xdeadbeef
>
> typedef struct {
> int fd_xe;
> @@ -476,6 +478,79 @@ static void test_vram_d3cold_threshold(device_t device, int sysfs_fd)
> igt_assert(in_d3(device, IGT_ACPI_D3Cold));
> }
>
> +/**
> + * SUBTEST: d3-mmap-%s
> + * Description:
> + * Validate mmap memory mapping with d3 state, for %arg[1] region,
> + * if supported by device.
> + * arg[1]:
> + *
> + * @vram: vram region
> + * @system: system region
> + *
> + * Functionality: pm-d3
> + * Run type: FULL
> + */
> +static void test_mmap(device_t device, uint32_t placement, uint32_t flags)
> +{
> + size_t bo_size = 8192;
> + uint32_t *map = NULL;
> + uint32_t bo;
> + int i;
> +
> + igt_require_f(placement, "Device doesn't support such memory region\n");
> +
> + bo_size = ALIGN(bo_size, xe_get_default_alignment(device.fd_xe));
> +
> + bo = xe_bo_create(device.fd_xe, 0, bo_size, placement, flags);
> + map = xe_bo_map(device.fd_xe, bo, bo_size);
> + igt_assert(map);
> + memset(map, 0, bo_size);
> +
> + fw_handle = igt_debugfs_open(device.fd_xe, "forcewake_all", O_RDONLY);
> +
> + igt_assert(fw_handle >= 0);
> + igt_assert(igt_get_runtime_pm_status() == IGT_RUNTIME_PM_STATUS_ACTIVE);
> +
> + for (i = 0; i < bo_size / sizeof(*map); i++)
> + map[i] = MAGIC_1;
> +
> + for (i = 0; i < bo_size / sizeof(*map); i++)
> + igt_assert(map[i] == MAGIC_1);
> +
> + /* Runtime suspend and validate the pattern and changed the pattern */
> + close(fw_handle);
> + igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED));
> +
> + for (i = 0; i < bo_size / sizeof(*map); i++)
> + igt_assert(map[i] == MAGIC_1);
> +
> + /* dgfx page-fault on mmaping should wake the gpu */
> + if (xe_has_vram(device.fd_xe))
> + igt_assert(igt_get_runtime_pm_status() == IGT_RUNTIME_PM_STATUS_ACTIVE);
> +
> + igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED));
> +
> + for (i = 0; i < bo_size / sizeof(*map); i++)
> + map[i] = MAGIC_2;
> +
> + if (xe_has_vram(device.fd_xe))
> + igt_assert(igt_get_runtime_pm_status() == IGT_RUNTIME_PM_STATUS_ACTIVE);
> +
> + igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED));
> +
> + /* Runtime resume and check the pattern */
> + fw_handle = igt_debugfs_open(device.fd_xe, "forcewake_all", O_RDONLY);
> + igt_assert(fw_handle >= 0);
> + igt_assert(igt_get_runtime_pm_status() == IGT_RUNTIME_PM_STATUS_ACTIVE);
> + for (i = 0; i < bo_size / sizeof(*map); i++)
> + igt_assert(map[i] == MAGIC_2);
> +
> + igt_assert(munmap(map, bo_size) == 0);
> + gem_close(device.fd_xe, bo);
> + close(fw_handle);
> +}
> +
> igt_main
> {
> struct drm_xe_engine_class_instance *hwe;
> @@ -591,6 +666,30 @@ igt_main
> igt_install_exit_handler(vram_d3cold_threshold_restore);
> test_vram_d3cold_threshold(device, sysfs_fd);
> }
> +
> + igt_describe("Validate mmap memory mappings with system region,"
> + "when device along with parent bridge in d3");
> + igt_subtest("d3-mmap-system") {
> + test_mmap(device, system_memory(device.fd_xe), 0);
> + }
> +
> + igt_describe("Validate mmap memory mappings with vram region,"
> + "when device along with parent bridge in d3");
> + igt_subtest("d3-mmap-vram") {
> + int delay_ms;
> +
> + if (device.pci_root != device.pci_xe) {
> + igt_pm_enable_pci_card_runtime_pm(device.pci_root, NULL);
> + igt_pm_set_d3cold_allowed(device.pci_slot_name, 1);
> + }
> +
> + delay_ms = igt_pm_get_autosuspend_delay(device.pci_xe);
> +
> + /* Give some auto suspend delay to validate rpm active during page fault */
> + igt_pm_set_autosuspend_delay(device.pci_xe, 1000);
> + test_mmap(device, vram_memory(device.fd_xe, 0), DRM_XE_GEM_CREATE_FLAG_NEEDS_VISIBLE_VRAM);
> + igt_pm_set_autosuspend_delay(device.pci_xe, delay_ms);
LGTM:
Reviewed-by: Badal Nilawar <badal.nilawar at intel.com>
Thanks,
Badal
> + }
> }
>
> igt_fixture {
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