drm/i915/gvt: GVT pin/unpin shadow context

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When handling guest request, GVT needs to populate/update shadow_ctx
with guest context. This behavior needs to make sure the shadow_ctx
is pinned. The current implementation is relying on i195 allocate request
to pin but this way cannot guarantee the i915 not to unpin the shadow_ctx
when GVT update the guest context from shadow_ctx. So GVT should pin/unpin
the shadow_ctx by itself.

Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

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Chuanxiao Dong 2017-03-16 09:47:58 +08:00 • committed by Zhenyu Wang

parent 17f1b1a6d4

commit 3cd23b828b

1 changed files with 27 additions and 0 deletions

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drivers/gpu/drm/i915/gvt/scheduler.c

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