diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-10-10 08:14:26 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-10-11 09:43:06 +0100 |
| commit | c97fb526ca0666e515e94f96e922dfc50467fd01 (patch) | |
| tree | 3a88ba3c98ccff1da15ae64512624bd2c8e8f53c /drivers | |
| parent | 9c4a14f8cceeffa01334e3229888746aa7dd95fe (diff) | |
| download | linux-c97fb526ca0666e515e94f96e922dfc50467fd01.tar.bz2 | |
drm/i915/execlists: Leave tell-tales as to why pending[] is bad
Before we BUG out with bad pending state, leave a telltale as to which
test failed.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191010071434.31195-2-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_lrc.c | 30 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.h | 11 |
2 files changed, 32 insertions, 9 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c index bd8ba98e35df..fd609ce4313a 100644 --- a/drivers/gpu/drm/i915/gt/intel_lrc.c +++ b/drivers/gpu/drm/i915/gt/intel_lrc.c @@ -1089,25 +1089,45 @@ assert_pending_valid(const struct intel_engine_execlists *execlists, trace_ports(execlists, msg, execlists->pending); - if (!execlists->pending[0]) + if (!execlists->pending[0]) { + GEM_TRACE_ERR("Nothing pending for promotion!\n"); return false; + } - if (execlists->pending[execlists_num_ports(execlists)]) + if (execlists->pending[execlists_num_ports(execlists)]) { + GEM_TRACE_ERR("Excess pending[%d] for promotion!\n", + execlists_num_ports(execlists)); return false; + } for (port = execlists->pending; (rq = *port); port++) { - if (ce == rq->hw_context) + if (ce == rq->hw_context) { + GEM_TRACE_ERR("Duplicate context in pending[%zd]\n", + port - execlists->pending); return false; + } ce = rq->hw_context; if (i915_request_completed(rq)) continue; - if (i915_active_is_idle(&ce->active)) + if (i915_active_is_idle(&ce->active)) { + GEM_TRACE_ERR("Inactive context in pending[%zd]\n", + port - execlists->pending); + return false; + } + + if (!i915_vma_is_pinned(ce->state)) { + GEM_TRACE_ERR("Unpinned context in pending[%zd]\n", + port - execlists->pending); return false; + } - if (!i915_vma_is_pinned(ce->state)) + if (!i915_vma_is_pinned(ce->ring->vma)) { + GEM_TRACE_ERR("Unpinned ringbuffer in pending[%zd]\n", + port - execlists->pending); return false; + } } return ce; diff --git a/drivers/gpu/drm/i915/i915_gem.h b/drivers/gpu/drm/i915/i915_gem.h index 6795f1daa3d5..db20d2b0842b 100644 --- a/drivers/gpu/drm/i915/i915_gem.h +++ b/drivers/gpu/drm/i915/i915_gem.h @@ -37,10 +37,8 @@ struct drm_i915_private; #define GEM_SHOW_DEBUG() (drm_debug & DRM_UT_DRIVER) #define GEM_BUG_ON(condition) do { if (unlikely((condition))) { \ - pr_err("%s:%d GEM_BUG_ON(%s)\n", \ - __func__, __LINE__, __stringify(condition)); \ - GEM_TRACE("%s:%d GEM_BUG_ON(%s)\n", \ - __func__, __LINE__, __stringify(condition)); \ + GEM_TRACE_ERR("%s:%d GEM_BUG_ON(%s)\n", \ + __func__, __LINE__, __stringify(condition)); \ BUG(); \ } \ } while(0) @@ -66,11 +64,16 @@ struct drm_i915_private; #if IS_ENABLED(CONFIG_DRM_I915_TRACE_GEM) #define GEM_TRACE(...) trace_printk(__VA_ARGS__) +#define GEM_TRACE_ERR(...) do { \ + pr_err(__VA_ARGS__); \ + trace_printk(__VA_ARGS__); \ +} while (0) #define GEM_TRACE_DUMP() ftrace_dump(DUMP_ALL) #define GEM_TRACE_DUMP_ON(expr) \ do { if (expr) ftrace_dump(DUMP_ALL); } while (0) #else #define GEM_TRACE(...) do { } while (0) +#define GEM_TRACE_ERR(...) do { } while (0) #define GEM_TRACE_DUMP() do { } while (0) #define GEM_TRACE_DUMP_ON(expr) BUILD_BUG_ON_INVALID(expr) #endif |