Semaphores seem to fix most of the hangs on SNB and IVB, and do not cause any known regressions as of now. Let's re-enable them by default to provide a wider testing and coverage. Acked-by: Keith Packard <keithp at keithp.com> CC: Jesse Barnes <jbarnes at virtuousgeek.org> CC: Daniel Vetter <daniel.vetter at ffwll.ch> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=42696 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=40564 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41353 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38862 Signed-off-by: Eugeni Dodonov <eugeni.dodonov at intel.com> --- drivers/gpu/drm/i915/i915_drv.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index cc531bb..71f887a 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -58,10 +58,10 @@ module_param_named(powersave, i915_powersave, int, 0600); MODULE_PARM_DESC(powersave, "Enable powersavings, fbc, downclocking, etc. (default: true)"); -unsigned int i915_semaphores __read_mostly = 0; +unsigned int i915_semaphores __read_mostly = 1; module_param_named(semaphores, i915_semaphores, int, 0600); MODULE_PARM_DESC(semaphores, - "Use semaphores for inter-ring sync (default: false)"); + "Use semaphores for inter-ring sync (default: true)"); unsigned int i915_enable_rc6 __read_mostly = 0; module_param_named(i915_enable_rc6, i915_enable_rc6, int, 0600); -- 1.7.7.3
