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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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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
/*
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* Copyright © 2016 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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*/
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#include "mock_context.h"
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#include "mock_gtt.h"
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struct i915_gem_context *
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mock_context(struct drm_i915_private *i915,
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const char *name)
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{
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struct i915_gem_context *ctx;
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int ret;
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ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
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if (!ctx)
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return NULL;
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kref_init(&ctx->ref);
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INIT_LIST_HEAD(&ctx->link);
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ctx->i915 = i915;
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ctx->vma_lut.ht_bits = VMA_HT_BITS;
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ctx->vma_lut.ht_size = BIT(VMA_HT_BITS);
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ctx->vma_lut.ht = kcalloc(ctx->vma_lut.ht_size,
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sizeof(*ctx->vma_lut.ht),
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GFP_KERNEL);
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if (!ctx->vma_lut.ht)
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goto err_free;
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ret = ida_simple_get(&i915->contexts.hw_ida,
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0, MAX_CONTEXT_HW_ID, GFP_KERNEL);
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if (ret < 0)
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goto err_vma_ht;
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ctx->hw_id = ret;
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if (name) {
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ctx->name = kstrdup(name, GFP_KERNEL);
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if (!ctx->name)
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goto err_put;
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ctx->ppgtt = mock_ppgtt(i915, name);
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if (!ctx->ppgtt)
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goto err_put;
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}
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return ctx;
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err_vma_ht:
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kvfree(ctx->vma_lut.ht);
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err_free:
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kfree(ctx);
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return NULL;
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err_put:
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i915_gem_context_set_closed(ctx);
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i915_gem_context_put(ctx);
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return NULL;
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}
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void mock_context_close(struct i915_gem_context *ctx)
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{
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i915_gem_context_set_closed(ctx);
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i915_ppgtt_close(&ctx->ppgtt->base);
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i915_gem_context_put(ctx);
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}
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void mock_init_contexts(struct drm_i915_private *i915)
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{
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INIT_LIST_HEAD(&i915->contexts.list);
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ida_init(&i915->contexts.hw_ida);
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INIT_WORK(&i915->contexts.free_work, contexts_free_worker);
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init_llist_head(&i915->contexts.free_list);
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}
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struct i915_gem_context *
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live_context(struct drm_i915_private *i915, struct drm_file *file)
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{
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lockdep_assert_held(&i915->drm.struct_mutex);
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return i915_gem_create_context(i915, file->driver_priv);
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}
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