diff options
author | Ben Widawsky <ben@bwidawsk.net> | 2014-06-30 09:53:41 -0700 |
---|---|---|
committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-07-07 23:16:54 +0200 |
commit | 0ca36d78391dc97b7d3e3d26e4518e30f3e88c16 (patch) | |
tree | bfb229c131b226be5761aebee7df39e0bfb912a0 | |
parent | 87f85ebc8dd089842e9efafd811486e5997b2265 (diff) | |
download | op-kernel-dev-0ca36d78391dc97b7d3e3d26e4518e30f3e88c16.zip op-kernel-dev-0ca36d78391dc97b7d3e3d26e4518e30f3e88c16.tar.gz |
drm/i915/bdw: collect semaphore error state
Since the semaphore information is in an object, just dump it, and let
the user parse it later.
NOTE: The page being used for the semaphores are incoherent with the
CPU. No matter what I do, I cannot figure out a way to read anything but
0s. Note that the semaphore waits are indeed working.
v2: Don't print signal, and wait (they should be the same). Instead,
print sync_seqno (Chris)
v3: Free the semaphore error object (Chris)
v4: Fix semaphore offset calculation during error state collection
(Ville)
v5: VCS2 rebase
Make semaphore object error capture coding style consistent (Ville)
Do the proper math for the signal offset (Ville)
v6: Fix small conflicts on rebase and s/ring_buffer/engine_cs (Rodrigo)
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
-rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/i915_gpu_error.c | 51 |
2 files changed, 48 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 7ef67b6..44f26eb 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -324,6 +324,7 @@ struct drm_i915_error_state { u64 fence[I915_MAX_NUM_FENCES]; struct intel_overlay_error_state *overlay; struct intel_display_error_state *display; + struct drm_i915_error_object *semaphore_obj; struct drm_i915_error_ring { bool valid; diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index 9d42b6a..45b6191 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -327,6 +327,7 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m, struct drm_device *dev = error_priv->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_error_state *error = error_priv->error; + struct drm_i915_error_object *obj; int i, j, offset, elt; int max_hangcheck_score; @@ -395,8 +396,6 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m, error->pinned_bo_count[0]); for (i = 0; i < ARRAY_SIZE(error->ring); i++) { - struct drm_i915_error_object *obj; - obj = error->ring[i].batchbuffer; if (obj) { err_puts(m, dev_priv->ring[i].name); @@ -459,6 +458,18 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m, } } + if ((obj = error->semaphore_obj)) { + err_printf(m, "Semaphore page = 0x%08x\n", obj->gtt_offset); + for (elt = 0; elt < PAGE_SIZE/16; elt += 4) { + err_printf(m, "[%04x] %08x %08x %08x %08x\n", + elt * 4, + obj->pages[0][elt], + obj->pages[0][elt+1], + obj->pages[0][elt+2], + obj->pages[0][elt+3]); + } + } + if (error->overlay) intel_overlay_print_error_state(m, error->overlay); @@ -529,6 +540,7 @@ static void i915_error_state_free(struct kref *error_ref) kfree(error->ring[i].requests); } + i915_error_object_free(error->semaphore_obj); kfree(error->active_bo); kfree(error->overlay); kfree(error->display); @@ -747,6 +759,33 @@ static void i915_gem_record_fences(struct drm_device *dev, } +static void gen8_record_semaphore_state(struct drm_i915_private *dev_priv, + struct drm_i915_error_state *error, + struct intel_engine_cs *ring, + struct drm_i915_error_ring *ering) +{ + struct intel_engine_cs *useless; + int i; + + if (!i915_semaphore_is_enabled(dev_priv->dev)) + return; + + if (!error->semaphore_obj) + error->semaphore_obj = + i915_error_object_create(dev_priv, + dev_priv->semaphore_obj, + &dev_priv->gtt.base); + + for_each_ring(useless, dev_priv, i) { + u16 signal_offset = + (GEN8_SIGNAL_OFFSET(ring, i) & PAGE_MASK) / 4; + u32 *tmp = error->semaphore_obj->pages[0]; + + ering->semaphore_mboxes[i] = tmp[signal_offset]; + ering->semaphore_seqno[i] = ring->semaphore.sync_seqno[i]; + } +} + static void gen6_record_semaphore_state(struct drm_i915_private *dev_priv, struct intel_engine_cs *ring, struct drm_i915_error_ring *ering) @@ -764,6 +803,7 @@ static void gen6_record_semaphore_state(struct drm_i915_private *dev_priv, } static void i915_record_ring_state(struct drm_device *dev, + struct drm_i915_error_state *error, struct intel_engine_cs *ring, struct drm_i915_error_ring *ering) { @@ -772,7 +812,10 @@ static void i915_record_ring_state(struct drm_device *dev, if (INTEL_INFO(dev)->gen >= 6) { ering->rc_psmi = I915_READ(ring->mmio_base + 0x50); ering->fault_reg = I915_READ(RING_FAULT_REG(ring)); - gen6_record_semaphore_state(dev_priv, ring, ering); + if (INTEL_INFO(dev)->gen >= 8) + gen8_record_semaphore_state(dev_priv, error, ring, ering); + else + gen6_record_semaphore_state(dev_priv, ring, ering); } if (INTEL_INFO(dev)->gen >= 4) { @@ -901,7 +944,7 @@ static void i915_gem_record_rings(struct drm_device *dev, error->ring[i].valid = true; - i915_record_ring_state(dev, ring, &error->ring[i]); + i915_record_ring_state(dev, error, ring, &error->ring[i]); request = i915_gem_find_active_request(ring); if (request) { |