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| author | Zhi Wang <zhi.wang.linux@gmail.com> | 2018-02-07 18:12:14 +0800 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2018-03-19 14:51:20 +0800 |
| commit | 730c8ead53bf3011d33de69ff5a6cebf51e697b5 (patch) | |
| tree | 570b9749a49cd6c5f7820232df3af9c45c08c85c /drivers/gpu | |
| parent | 5cd4223ea3bd29e4a17d0bd8f2adbe50e50b2e57 (diff) | |
| download | op-kernel-dev-730c8ead53bf3011d33de69ff5a6cebf51e697b5.zip op-kernel-dev-730c8ead53bf3011d33de69ff5a6cebf51e697b5.tar.gz | |
drm/i915/gvt: Invalidate vGPU PPGTT mm objects during a vGPU reset.
As different OSes might handling GVT PPGTT creation/destroy notification
differently during a vGPU reset. A better approach is invalidating all
vGPU PPGTT mm objects during vGPU reset.
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/gtt.c | 22 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/gtt.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/vgpu.c | 1 |
3 files changed, 24 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c index 8eb76be..d292812 100644 --- a/drivers/gpu/drm/i915/gvt/gtt.c +++ b/drivers/gpu/drm/i915/gvt/gtt.c @@ -2291,6 +2291,28 @@ void intel_gvt_clean_gtt(struct intel_gvt *gvt) } /** + * intel_vgpu_invalidate_ppgtt - invalidate PPGTT instances + * @vgpu: a vGPU + * + * This function is called when invalidate all PPGTT instances of a vGPU. + * + */ +void intel_vgpu_invalidate_ppgtt(struct intel_vgpu *vgpu) +{ + struct list_head *pos, *n; + struct intel_vgpu_mm *mm; + + list_for_each_safe(pos, n, &vgpu->gtt.ppgtt_mm_list_head) { + mm = container_of(pos, struct intel_vgpu_mm, ppgtt_mm.list); + if (mm->type == INTEL_GVT_MM_PPGTT) { + list_del_init(&mm->ppgtt_mm.lru_list); + if (mm->ppgtt_mm.shadowed) + invalidate_ppgtt_mm(mm); + } + } +} + +/** * intel_vgpu_reset_ggtt - reset the GGTT entry * @vgpu: a vGPU * diff --git a/drivers/gpu/drm/i915/gvt/gtt.h b/drivers/gpu/drm/i915/gvt/gtt.h index e831507..a8b369c 100644 --- a/drivers/gpu/drm/i915/gvt/gtt.h +++ b/drivers/gpu/drm/i915/gvt/gtt.h @@ -194,6 +194,7 @@ struct intel_vgpu_gtt { extern int intel_vgpu_init_gtt(struct intel_vgpu *vgpu); extern void intel_vgpu_clean_gtt(struct intel_vgpu *vgpu); void intel_vgpu_reset_ggtt(struct intel_vgpu *vgpu); +void intel_vgpu_invalidate_ppgtt(struct intel_vgpu *vgpu); extern int intel_gvt_init_gtt(struct intel_gvt *gvt); void intel_vgpu_reset_gtt(struct intel_vgpu *vgpu); diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c index 41f76e8..2e0a02a 100644 --- a/drivers/gpu/drm/i915/gvt/vgpu.c +++ b/drivers/gpu/drm/i915/gvt/vgpu.c @@ -522,6 +522,7 @@ void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr, /* full GPU reset or device model level reset */ if (engine_mask == ALL_ENGINES || dmlr) { intel_vgpu_select_submission_ops(vgpu, ALL_ENGINES, 0); + intel_vgpu_invalidate_ppgtt(vgpu); /*fence will not be reset during virtual reset */ if (dmlr) { intel_vgpu_reset_gtt(vgpu); |
