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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 16:15:29 +07:00
1fc44d9b1a
To ease the frequent and ugly pointer dance of
&request->gem_context->engine[request->engine->id] during request
submission, store that pointer as request->hw_context. One major
advantage that we will exploit later is that this decouples the logical
context state from the engine itself.
v2: Set mock_context->ops so we don't crash and burn in selftests.
Cleanups from Tvrtko.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180517212633.24934-3-chris@chris-wilson.co.uk
113 lines
2.9 KiB
C
113 lines
2.9 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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unsigned int n;
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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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INIT_RADIX_TREE(&ctx->handles_vma, GFP_KERNEL);
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INIT_LIST_HEAD(&ctx->handles_list);
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for (n = 0; n < ARRAY_SIZE(ctx->__engine); n++) {
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struct intel_context *ce = &ctx->__engine[n];
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ce->gem_context = ctx;
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}
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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_handles;
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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_handles:
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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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context_close(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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struct i915_gem_context *
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kernel_context(struct drm_i915_private *i915)
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{
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return i915_gem_context_create_kernel(i915, I915_PRIORITY_NORMAL);
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}
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void kernel_context_close(struct i915_gem_context *ctx)
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{
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context_close(ctx);
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}
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