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drm/i915: Record default HW state in the GPU error state

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It may be of interest to both compare the active HW context against the
default (aka NULL) context, to see what has been changed and if either are
corrupt.

v2: Rename the fake vma as fake.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171126220901.14735-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
This commit is contained in:
Chris Wilson 2017-11-26 22:09:01 +00:00
parent c82297fcfa
commit 4e90a6e222
2 changed files with 24 additions and 0 deletions
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1
drivers/gpu/drm/i915/i915_drv.h
View File

@ -1009,6 +1009,7 @@ struct i915_gpu_state {
long user_bo_count;
struct drm_i915_error_object *wa_ctx;
struct drm_i915_error_object *default_state;
struct drm_i915_error_request {
long jiffies;

23
drivers/gpu/drm/i915/i915_gpu_error.c
View File

@ -791,6 +791,9 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
print_error_obj(m, dev_priv->engine[i],
"WA batchbuffer", ee->wa_batchbuffer);
print_error_obj(m, dev_priv->engine[i],
"NULL context", ee->default_state);
}
if (error->overlay)
@ -1414,6 +1417,23 @@ static void request_record_user_bo(struct drm_i915_gem_request *request,
ee->user_bo_count = count;
}
static struct drm_i915_error_object *
capture_object(struct drm_i915_private *dev_priv,
struct drm_i915_gem_object *obj)
{
if (obj && i915_gem_object_has_pages(obj)) {
struct i915_vma fake = {
.node = { .start = U64_MAX, .size = obj->base.size },
.pages = obj->mm.pages,
.obj = obj,
};
return i915_error_object_create(dev_priv, &fake);
} else {
return NULL;
}
}
static void i915_gem_record_rings(struct drm_i915_private *dev_priv,
struct i915_gpu_state *error)
{
@ -1485,6 +1505,9 @@ static void i915_gem_record_rings(struct drm_i915_private *dev_priv,
ee->wa_ctx =
i915_error_object_create(dev_priv, engine->wa_ctx.vma);
ee->default_state =
capture_object(dev_priv, engine->default_state);
}
}