diff options
| author | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2020-04-30 10:53:20 +0300 |
|---|---|---|
| committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2020-04-30 10:53:21 +0300 |
| commit | 8b46ed57f34df111c224d4319c891b43e0e03806 (patch) | |
| tree | b5431e2125f695677e6c5fa40fc5ca39f8bd0e2e /drivers/gpu/drm/i915/gvt/gtt.c | |
| parent | 79eb8c7f015a6c2b307b86ca4176c5f0ed987219 (diff) | |
| parent | fb55c735522352704c35d899d0b253453cf0e799 (diff) | |
| download | linux-8b46ed57f34df111c224d4319c891b43e0e03806.tar.xz | |
Merge tag 'gvt-next-2020-04-22' of https://github.com/intel/gvt-linux into drm-intel-next-queued
gvt-next-2020-04-22
- remove non-upstream xen support bits (Christoph)
- guest context shadow copy optimization (Yan)
- guest context tracking for shadow skip optimization (Yan)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
From: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200422051230.GH11247@zhen-hp.sh.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/gtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/gtt.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c index 2a4b23f8aa74..d2b0d85b39bc 100644 --- a/drivers/gpu/drm/i915/gvt/gtt.c +++ b/drivers/gpu/drm/i915/gvt/gtt.c @@ -2341,12 +2341,27 @@ int intel_vgpu_emulate_ggtt_mmio_write(struct intel_vgpu *vgpu, { const struct intel_gvt_device_info *info = &vgpu->gvt->device_info; int ret; + struct intel_vgpu_submission *s = &vgpu->submission; + struct intel_engine_cs *engine; + int i; if (bytes != 4 && bytes != 8) return -EINVAL; off -= info->gtt_start_offset; ret = emulate_ggtt_mmio_write(vgpu, off, p_data, bytes); + + /* if ggtt of last submitted context is written, + * that context is probably got unpinned. + * Set last shadowed ctx to invalid. + */ + for_each_engine(engine, vgpu->gvt->gt, i) { + if (!s->last_ctx[i].valid) + continue; + + if (s->last_ctx[i].lrca == (off >> info->gtt_entry_size_shift)) + s->last_ctx[i].valid = false; + } return ret; } |