Avoid injecting hangs in to the i915->kernel_context in case the GPU reset leaves corruption in the context image in its wake (leading to continual failures and system hangs after the selftests are ostensibly complete). Use a sacrificial kernel_context instead.
Signed-off-by: Chris Wilson <[email protected]> Cc: Mika Kuoppala <[email protected]> Cc: Michel Thierry <[email protected] --- drivers/gpu/drm/i915/selftests/intel_hangcheck.c | 41 ++++++++++++++---------- 1 file changed, 24 insertions(+), 17 deletions(-) diff --git a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c index d1f91a533afa..e800286f064c 100644 --- a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c +++ b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c @@ -33,6 +33,7 @@ struct hang { struct drm_i915_private *i915; struct drm_i915_gem_object *hws; struct drm_i915_gem_object *obj; + struct i915_gem_context *ctx; u32 *seqno; u32 *batch; }; @@ -45,9 +46,15 @@ static int hang_init(struct hang *h, struct drm_i915_private *i915) memset(h, 0, sizeof(*h)); h->i915 = i915; + h->ctx = i915_gem_context_create_kernel(i915, I915_PRIORITY_MAX); + if (IS_ERR(h->ctx)) + return PTR_ERR(h->ctx); + h->hws = i915_gem_object_create_internal(i915, PAGE_SIZE); - if (IS_ERR(h->hws)) - return PTR_ERR(h->hws); + if (IS_ERR(h->hws)) { + err = PTR_ERR(h->hws); + goto err_ctx; + } h->obj = i915_gem_object_create_internal(i915, PAGE_SIZE); if (IS_ERR(h->obj)) { @@ -79,6 +86,9 @@ static int hang_init(struct hang *h, struct drm_i915_private *i915) i915_gem_object_put(h->obj); err_hws: i915_gem_object_put(h->hws); +err_ctx: + i915_gem_context_set_closed(h->ctx); + i915_gem_context_put(h->ctx); return err; } @@ -196,9 +206,7 @@ static int emit_recurse_batch(struct hang *h, } static struct drm_i915_gem_request * -hang_create_request(struct hang *h, - struct intel_engine_cs *engine, - struct i915_gem_context *ctx) +hang_create_request(struct hang *h, struct intel_engine_cs *engine) { struct drm_i915_gem_request *rq; int err; @@ -225,7 +233,7 @@ hang_create_request(struct hang *h, h->batch = vaddr; } - rq = i915_gem_request_alloc(engine, ctx); + rq = i915_gem_request_alloc(engine, h->ctx); if (IS_ERR(rq)) return rq; @@ -255,6 +263,9 @@ static void hang_fini(struct hang *h) i915_gem_object_unpin_map(h->hws); i915_gem_object_put(h->hws); + i915_gem_context_set_closed(h->ctx); + i915_gem_context_put(h->ctx); + i915_gem_wait_for_idle(h->i915, I915_WAIT_LOCKED); } @@ -290,7 +301,7 @@ static int igt_hang_sanitycheck(void *arg) if (!intel_engine_can_store_dword(engine)) continue; - rq = hang_create_request(&h, engine, i915->kernel_context); + rq = hang_create_request(&h, engine); if (IS_ERR(rq)) { err = PTR_ERR(rq); pr_err("Failed to create request for %s, err=%d\n", @@ -427,8 +438,7 @@ static int __igt_reset_engine(struct drm_i915_private *i915, bool active) struct drm_i915_gem_request *rq; mutex_lock(&i915->drm.struct_mutex); - rq = hang_create_request(&h, engine, - i915->kernel_context); + rq = hang_create_request(&h, engine); if (IS_ERR(rq)) { err = PTR_ERR(rq); mutex_unlock(&i915->drm.struct_mutex); @@ -633,8 +643,7 @@ static int __igt_reset_engine_others(struct drm_i915_private *i915, struct drm_i915_gem_request *rq; mutex_lock(&i915->drm.struct_mutex); - rq = hang_create_request(&h, engine, - i915->kernel_context); + rq = hang_create_request(&h, engine); if (IS_ERR(rq)) { err = PTR_ERR(rq); mutex_unlock(&i915->drm.struct_mutex); @@ -787,7 +796,7 @@ static int igt_wait_reset(void *arg) if (err) goto unlock; - rq = hang_create_request(&h, i915->engine[RCS], i915->kernel_context); + rq = hang_create_request(&h, i915->engine[RCS]); if (IS_ERR(rq)) { err = PTR_ERR(rq); goto fini; @@ -866,7 +875,7 @@ static int igt_reset_queue(void *arg) if (!intel_engine_can_store_dword(engine)) continue; - prev = hang_create_request(&h, engine, i915->kernel_context); + prev = hang_create_request(&h, engine); if (IS_ERR(prev)) { err = PTR_ERR(prev); goto fini; @@ -880,9 +889,7 @@ static int igt_reset_queue(void *arg) struct drm_i915_gem_request *rq; unsigned int reset_count; - rq = hang_create_request(&h, - engine, - i915->kernel_context); + rq = hang_create_request(&h, engine); if (IS_ERR(rq)) { err = PTR_ERR(rq); goto fini; @@ -989,7 +996,7 @@ static int igt_handle_error(void *arg) if (err) goto err_unlock; - rq = hang_create_request(&h, engine, i915->kernel_context); + rq = hang_create_request(&h, engine); if (IS_ERR(rq)) { err = PTR_ERR(rq); goto err_fini; -- 2.15.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
