130a95e909
Use the same engine_idle_release() routine for cleaning all old ctx->engine[] state, closing any potential races with concurrent execbuf submission. v2ish: Use the ce->pin_count to close the execbuf gap. Closes: https://gitlab.freedesktop.org/drm/intel/issues/1241 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200303080546.1140508-1-chris@chris-wilson.co.uk
122 lines
2.2 KiB
C
122 lines
2.2 KiB
C
/*
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* SPDX-License-Identifier: MIT
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*
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* Copyright © 2016 Intel Corporation
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*/
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#include "mock_context.h"
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#include "selftests/mock_drm.h"
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#include "selftests/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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struct i915_gem_engines *e;
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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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spin_lock_init(&ctx->stale.lock);
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INIT_LIST_HEAD(&ctx->stale.engines);
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i915_gem_context_set_persistence(ctx);
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mutex_init(&ctx->engines_mutex);
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e = default_engines(ctx);
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if (IS_ERR(e))
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goto err_free;
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RCU_INIT_POINTER(ctx->engines, e);
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INIT_RADIX_TREE(&ctx->handles_vma, GFP_KERNEL);
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mutex_init(&ctx->mutex);
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if (name) {
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struct i915_ppgtt *ppgtt;
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strncpy(ctx->name, name, sizeof(ctx->name) - 1);
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ppgtt = mock_ppgtt(i915, name);
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if (!ppgtt)
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goto err_put;
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mutex_lock(&ctx->mutex);
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__set_ppgtt(ctx, &ppgtt->vm);
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mutex_unlock(&ctx->mutex);
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i915_vm_put(&ppgtt->vm);
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}
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return ctx;
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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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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_contexts(&i915->gem.contexts);
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}
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struct i915_gem_context *
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live_context(struct drm_i915_private *i915, struct file *file)
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{
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struct i915_gem_context *ctx;
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int err;
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u32 id;
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ctx = i915_gem_create_context(i915, 0);
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if (IS_ERR(ctx))
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return ctx;
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i915_gem_context_set_no_error_capture(ctx);
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err = gem_context_register(ctx, to_drm_file(file)->driver_priv, &id);
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if (err < 0)
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goto err_ctx;
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return ctx;
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err_ctx:
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context_close(ctx);
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return ERR_PTR(err);
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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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struct i915_gem_context *ctx;
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ctx = i915_gem_create_context(i915, 0);
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if (IS_ERR(ctx))
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return ctx;
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i915_gem_context_clear_bannable(ctx);
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i915_gem_context_set_persistence(ctx);
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i915_gem_context_set_no_error_capture(ctx);
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return ctx;
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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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