forked from Minki/linux
79f0f4724d
If all goes well, resetting one engine should not affect the operation of any others. So to test this, we setup a continuous stream of requests onto to each of the "innocent" engines whilst constantly resetting our target engine. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Michel Thierry <michel.thierry@intel.com> Reviewed-by: Michel Thierry <michel.thierry@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170721123238.16428-16-chris@chris-wilson.co.uk Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
106 lines
2.7 KiB
C
106 lines
2.7 KiB
C
/*
|
|
* Copyright © 2016 Intel Corporation
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
* IN THE SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#include "mock_context.h"
|
|
#include "mock_gtt.h"
|
|
|
|
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->contexts.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 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);
|
|
}
|
|
|
|
void mock_init_contexts(struct drm_i915_private *i915)
|
|
{
|
|
INIT_LIST_HEAD(&i915->contexts.list);
|
|
ida_init(&i915->contexts.hw_ida);
|
|
|
|
INIT_WORK(&i915->contexts.free_work, contexts_free_worker);
|
|
init_llist_head(&i915->contexts.free_list);
|
|
}
|
|
|
|
struct i915_gem_context *
|
|
live_context(struct drm_i915_private *i915, struct drm_file *file)
|
|
{
|
|
lockdep_assert_held(&i915->drm.struct_mutex);
|
|
|
|
return i915_gem_create_context(i915, file->driver_priv);
|
|
}
|