diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-01-07 17:28:42 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-01-07 22:31:45 +0000 |
| commit | d7cb6975f11ee4615c37a73144ca58a5ccf65894 (patch) | |
| tree | cec4e4c089f9547f24ac3ebfbef147386543228b /drivers/gpu/drm/i915/gt | |
| parent | 2c86e55d2ab55b036d901384eae43fdae4487459 (diff) | |
drm/i915/gt: Always force restore freshly pinned contexts
It is highly unlikely, but still conceivable, that we submit a context
with the same GGTT address as last active on the HW. In this case, with
a matching LRCA, the HW would not restore the new context image causing
a potential violation of our context isolation.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200107172842.3315449-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/gt')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_lrc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c index 5f171e43f79c..bd74b76c6403 100644 --- a/drivers/gpu/drm/i915/gt/intel_lrc.c +++ b/drivers/gpu/drm/i915/gt/intel_lrc.c @@ -2583,7 +2583,7 @@ __execlists_context_pin(struct intel_context *ce, goto unpin_active; } - ce->lrc_desc = lrc_descriptor(ce, engine); + ce->lrc_desc = lrc_descriptor(ce, engine) | CTX_DESC_FORCE_RESTORE; ce->lrc_reg_state = vaddr + LRC_STATE_PN * PAGE_SIZE; __execlists_update_reg_state(ce, engine); |