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| author | Xiaolin Zhang <xiaolin.zhang@intel.com> | 2019-06-03 05:55:53 +0300 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2019-06-03 08:18:36 +0300 |
| commit | 15e7f52a4596b496ce3da2fa4c1f94c6fb0023f2 (patch) | |
| tree | cd80b905a97fafd33ca1c9bb165a2b51b417cd10 /include | |
| parent | 3fcb01f8ab9d1c1cdd68142078243b675e17041d (diff) | |
| download | linux-15e7f52a4596b496ce3da2fa4c1f94c6fb0023f2.tar.xz | |
drm/i915/gvt: save RING_HEAD into vreg when vgpu switched out
Save RING_HEAD into vgpu reg when vgpu switched out and report
it's value back to guest.
v6: addressed comment for ring head wrap count support. (Zhenyu)
v5: ring head wrap count support.
v4: updated HEAD/TAIL with guest value, not host value. (Yan Zhao)
v3: save RING HEAD/TAIL vgpu reg in save_ring_hw_state. (Zhenyu Wang)
v2: save RING_TAIL as well during vgpu mmio switch to meet ring_is_idle
condition. (Fred Gao)
v1: based on input from Weinan. (Weinan Li)
[zhenyuw: Include this fix for possible future guest kernel that
would utilize RING_HEAD for hangcheck.]
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Xiaolin Zhang <xiaolin.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions