When the GPU is reset or state lost through suspend, every default
legacy context needs to reload their state - both the golden render
state and the L3 mapping. Only context images explicitly saved to memory
(i.e. all execlists and non-default legacy contexts) will retain their
state across the reset.
v2: Rebase
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem_context.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index 60967b935d72..223d6c871c39 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -438,6 +438,18 @@ void i915_gem_context_lost(struct drm_i915_private *dev_priv)
/* Force the GPU state to be restored on enabling */
if (!i915.enable_execlists) {
+ struct i915_gem_context *ctx;
+
+ list_for_each_entry(ctx, &dev_priv->context_list, link) {
+ if (!i915_gem_context_is_default(ctx))
+ continue;
+
+ for_each_engine(engine, dev_priv)
+ ctx->engine[engine->id].initialised = false;
+
+ ctx->remap_slice = ALL_L3_SLICES(dev_priv);
+ }
+
for_each_engine(engine, dev_priv) {
struct intel_context *kce =
&dev_priv->kernel_context->engine[engine->id];
@@ -445,7 +457,6 @@ void i915_gem_context_lost(struct drm_i915_private *dev_priv)
kce->initialised = true;
}
}
- dev_priv->kernel_context->remap_slice = ALL_L3_SLICES(dev_priv);
}
void i915_gem_context_fini(struct drm_device *dev)
--
2.8.1
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