static void context_close(struct i915_gem_context *ctx)
{
i915_gem_context_set_closed(ctx);
if (ctx->ppgtt)
i915_ppgtt_close(&ctx->ppgtt->base);
ctx->file_priv = ERR_PTR(-EBADF);
i915_gem_context_put(ctx);
}
void mock_context_close(struct i915_gem_context *ctx)
{
i915_gem_context_set_closed(ctx);
i915_ppgtt_close(&ctx->ppgtt->base);
i915_gem_context_put(ctx);
}
struct i915_gem_context *
mock_context(struct drm_i915_private *i915,
const char *name)
{
struct i915_gem_context *ctx;
int ret;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return NULL;
kref_init(&ctx->ref);
INIT_LIST_HEAD(&ctx->link);
ctx->i915 = i915;
ctx->vma_lut.ht_bits = VMA_HT_BITS;
ctx->vma_lut.ht_size = BIT(VMA_HT_BITS);
ctx->vma_lut.ht = kcalloc(ctx->vma_lut.ht_size,
sizeof(*ctx->vma_lut.ht),
GFP_KERNEL);
if (!ctx->vma_lut.ht)
goto err_free;
ret = ida_simple_get(&i915->context_hw_ida,
0, MAX_CONTEXT_HW_ID, GFP_KERNEL);
if (ret < 0)
goto err_vma_ht;
ctx->hw_id = ret;
if (name) {
ctx->name = kstrdup(name, GFP_KERNEL);
if (!ctx->name)
goto err_put;
ctx->ppgtt = mock_ppgtt(i915, name);
if (!ctx->ppgtt)
goto err_put;
}
return ctx;
err_vma_ht:
kvfree(ctx->vma_lut.ht);
err_free:
kfree(ctx);
return NULL;
err_put:
i915_gem_context_set_closed(ctx);
i915_gem_context_put(ctx);
return NULL;
}
void intel_context_unpin(struct intel_context *ce)
{
if (likely(atomic_add_unless(&ce->pin_count, -1, 1)))
return;
/* We may be called from inside intel_context_pin() to evict another */
intel_context_get(ce);
mutex_lock_nested(&ce->pin_mutex, SINGLE_DEPTH_NESTING);
if (likely(atomic_dec_and_test(&ce->pin_count))) {
ce->ops->unpin(ce);
i915_gem_context_put(ce->gem_context);
intel_context_put(ce);
}
mutex_unlock(&ce->pin_mutex);
intel_context_put(ce);
}
