The transition to PCI device state D3 is not instantaneous and only started when runtime suspended. Allow the driver/hardware a little bit of time to complete the transition before declaring a test failure.
References: https://bugs.freedesktop.org/show_bug.cgi?id=93123 Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk> --- tests/pm_rpm.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/tests/pm_rpm.c b/tests/pm_rpm.c index e84a9d3..03ef2eb 100644 --- a/tests/pm_rpm.c +++ b/tests/pm_rpm.c @@ -1337,15 +1337,13 @@ static void reg_read_ioctl_subtest(void) static bool device_in_pci_d3(void) { - struct pci_device *pci_dev; - int rc; uint16_t val; + int rc; - pci_dev = intel_get_pci_device(); - - rc = pci_device_cfg_read_u16(pci_dev, &val, 0xd4); + rc = pci_device_cfg_read_u16(intel_get_pci_device(), &val, 0xd4); igt_assert_eq(rc, 0); + igt_debug("%s: PCI D3 state=%d\n", __func__, val & 0x3); return (val & 0x3) == 0x3; } @@ -1354,11 +1352,9 @@ static void pci_d3_state_subtest(void) igt_require(has_runtime_pm); disable_all_screens_and_wait(&ms_data); - - igt_assert(device_in_pci_d3()); + igt_assert(igt_wait(device_in_pci_d3(), 2000, 100)); enable_one_screen_and_wait(&ms_data); - igt_assert(!device_in_pci_d3()); } -- 2.7.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
