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authorfred gao <fred.gao@intel.com>2017-07-17 14:52:05 +0800
committerZhenyu Wang <zhenyuw@linux.intel.com>2017-07-17 17:09:04 +0800
commitf43aa31fe7dc43b808ec619b0d407180cd3725c0 (patch)
tree5d73caa9ab4e6c2c79793b6ba202198d61ad9e64 /drivers/gpu/drm/i915/i915_oa_hsw.c
parent0cf5ec41839d82ee7f8fbb47f137b7afc562b9f1 (diff)
drm/i915/gvt: Fix the vblank timer close issue after shutdown VMs in reverse
Once the Windows guest is shutdown, the display pipe will be disabled and intel_gvt_check_vblank_emulation will be called to check if the vblank timer is turned off. Given the scenario of creating VM1 ,VM2, destoying VM2 in current code, VM1 has pipe enabled and continues to check VM2, the flag have_enabled_pipe is always false since all the VM2 pipes are disabled, so the vblank timer will be canceled and TDR happens in Windows VM1 guest due to the vsync timeout. In this patch the vblank timer will be never canceled once one pipe is enabled. v2: - remove have_enabled_pipe flag and check pipe enabled directly. (Zhenyu) Cc: Wang Hongbo <hongbo.wang@intel.com> Signed-off-by: fred gao <fred.gao@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_oa_hsw.c')
0 files changed, 0 insertions, 0 deletions