diff options
| author | Chuanxiao Dong <chuanxiao.dong@intel.com> | 2017-08-04 08:08:59 +0300 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2017-08-10 05:26:10 +0300 |
| commit | 4d3e67bb6fa26e50eb087799d98ec232acfb630d (patch) | |
| tree | 65487359f32dec651bdd1877d20db86c8c28796a /drivers/gpu/drm/i915/gvt/gtt.c | |
| parent | 4b2dbbc22541e44e10e22836149050ab6dbd879e (diff) | |
| download | linux-4d3e67bb6fa26e50eb087799d98ec232acfb630d.tar.xz | |
drm/i915/gvt: Refine the intel_vgpu_reset_gtt reset function
When doing the VGPU reset, we don't need to do the gtt/ppgtt reset.
This will make the GVT to do the ppgtt shadow every time for
a workload and caused really bad performance after a VGPU reset.
This patch will make sure ppgtt clean only happen at device module
level reset to fix this.
Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/gtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/gtt.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c index e397f5e0722f..f862681c70d1 100644 --- a/drivers/gpu/drm/i915/gvt/gtt.c +++ b/drivers/gpu/drm/i915/gvt/gtt.c @@ -2352,13 +2352,12 @@ void intel_vgpu_reset_ggtt(struct intel_vgpu *vgpu) /** * intel_vgpu_reset_gtt - reset the all GTT related status * @vgpu: a vGPU - * @dmlr: true for vGPU Device Model Level Reset, false for GT Reset * * This function is called from vfio core to reset reset all * GTT related status, including GGTT, PPGTT, scratch page. * */ -void intel_vgpu_reset_gtt(struct intel_vgpu *vgpu, bool dmlr) +void intel_vgpu_reset_gtt(struct intel_vgpu *vgpu) { int i; @@ -2370,9 +2369,6 @@ void intel_vgpu_reset_gtt(struct intel_vgpu *vgpu, bool dmlr) */ intel_vgpu_free_mm(vgpu, INTEL_GVT_MM_PPGTT); - if (!dmlr) - return; - intel_vgpu_reset_ggtt(vgpu); /* clear scratch page for security */ |