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drm/i915: Clear fence registers on GPU reset

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When the GPU is reset, the fence registers are invalidated, so release
the objects and clear them out.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2010-09-30 16:53:18 +01:00
parent 812ed49243
commit 069efc1dac
3 changed files with 15 additions and 3 deletions
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2
drivers/gpu/drm/i915/i915_drv.c
View file

@ -395,7 +395,7 @@ int i915_reset(struct drm_device *dev, u8 flags)
mutex_lock(&dev->struct_mutex);
i915_gem_reset_lists(dev);
i915_gem_reset(dev);
/*
* Set the domains we want to reset (GRDOM/bits 2 and 3) as

2
drivers/gpu/drm/i915/i915_drv.h
View file

@ -1033,7 +1033,7 @@ int i915_gem_object_get_fence_reg(struct drm_gem_object *obj,
int i915_gem_object_put_fence_reg(struct drm_gem_object *obj,
bool interruptible);
void i915_gem_retire_requests(struct drm_device *dev);
void i915_gem_reset_lists(struct drm_device *dev);
void i915_gem_reset(struct drm_device *dev);
void i915_gem_clflush_object(struct drm_gem_object *obj);
int i915_gem_object_set_domain(struct drm_gem_object *obj,
uint32_t read_domains,

14
drivers/gpu/drm/i915/i915_gem.c
View file

@ -1826,10 +1826,11 @@ static void i915_gem_reset_ring_lists(struct drm_i915_private *dev_priv,
}
}
void i915_gem_reset_lists(struct drm_device *dev)
void i915_gem_reset(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj_priv;
int i;
i915_gem_reset_ring_lists(dev_priv, &dev_priv->render_ring);
if (HAS_BSD(dev))
@ -1858,6 +1859,17 @@ void i915_gem_reset_lists(struct drm_device *dev)
{
obj_priv->base.read_domains &= ~I915_GEM_GPU_DOMAINS;
}
/* The fence registers are invalidated so clear them out */
for (i = 0; i < 16; i++) {
struct drm_i915_fence_reg *reg;
reg = &dev_priv->fence_regs[i];
if (!reg->obj)
continue;
i915_gem_clear_fence_reg(reg->obj);
}
}
/**