diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gem/selftests/mock_context.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gem/selftests/mock_context.c | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gem/selftests/mock_context.c b/drivers/gpu/drm/i915/gem/selftests/mock_context.c new file mode 100644 index 000000000..8ac6726ec --- /dev/null +++ b/drivers/gpu/drm/i915/gem/selftests/mock_context.c @@ -0,0 +1,180 @@ +/* + * SPDX-License-Identifier: MIT + * + * Copyright © 2016 Intel Corporation + */ + +#include "i915_file_private.h" +#include "mock_context.h" +#include "selftests/mock_drm.h" +#include "selftests/mock_gtt.h" + +struct i915_gem_context * +mock_context(struct drm_i915_private *i915, + const char *name) +{ + struct i915_gem_context *ctx; + struct i915_gem_engines *e; + struct intel_sseu null_sseu = {}; + + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return NULL; + + kref_init(&ctx->ref); + INIT_LIST_HEAD(&ctx->link); + ctx->i915 = i915; + INIT_WORK(&ctx->release_work, i915_gem_context_release_work); + + mutex_init(&ctx->mutex); + + spin_lock_init(&ctx->stale.lock); + INIT_LIST_HEAD(&ctx->stale.engines); + + i915_gem_context_set_persistence(ctx); + + if (name) { + struct i915_ppgtt *ppgtt; + + strncpy(ctx->name, name, sizeof(ctx->name) - 1); + + ppgtt = mock_ppgtt(i915, name); + if (!ppgtt) + goto err_free; + + ctx->vm = &ppgtt->vm; + } + + mutex_init(&ctx->engines_mutex); + e = default_engines(ctx, null_sseu); + if (IS_ERR(e)) + goto err_vm; + RCU_INIT_POINTER(ctx->engines, e); + + INIT_RADIX_TREE(&ctx->handles_vma, GFP_KERNEL); + mutex_init(&ctx->lut_mutex); + + return ctx; + +err_vm: + if (ctx->vm) + i915_vm_put(ctx->vm); +err_free: + kfree(ctx); + return NULL; +} + +void mock_context_close(struct i915_gem_context *ctx) +{ + context_close(ctx); +} + +void mock_init_contexts(struct drm_i915_private *i915) +{ + init_contexts(&i915->gem.contexts); +} + +struct i915_gem_context * +live_context(struct drm_i915_private *i915, struct file *file) +{ + struct drm_i915_file_private *fpriv = to_drm_file(file)->driver_priv; + struct i915_gem_proto_context *pc; + struct i915_gem_context *ctx; + int err; + u32 id; + + pc = proto_context_create(i915, 0); + if (IS_ERR(pc)) + return ERR_CAST(pc); + + ctx = i915_gem_create_context(i915, pc); + proto_context_close(i915, pc); + if (IS_ERR(ctx)) + return ctx; + + i915_gem_context_set_no_error_capture(ctx); + + err = xa_alloc(&fpriv->context_xa, &id, NULL, xa_limit_32b, GFP_KERNEL); + if (err < 0) + goto err_ctx; + + gem_context_register(ctx, fpriv, id); + + return ctx; + +err_ctx: + context_close(ctx); + return ERR_PTR(err); +} + +struct i915_gem_context * +live_context_for_engine(struct intel_engine_cs *engine, struct file *file) +{ + struct i915_gem_engines *engines; + struct i915_gem_context *ctx; + struct intel_sseu null_sseu = {}; + struct intel_context *ce; + + engines = alloc_engines(1); + if (!engines) + return ERR_PTR(-ENOMEM); + + ctx = live_context(engine->i915, file); + if (IS_ERR(ctx)) { + __free_engines(engines, 0); + return ctx; + } + + ce = intel_context_create(engine); + if (IS_ERR(ce)) { + __free_engines(engines, 0); + return ERR_CAST(ce); + } + + intel_context_set_gem(ce, ctx, null_sseu); + engines->engines[0] = ce; + engines->num_engines = 1; + + mutex_lock(&ctx->engines_mutex); + i915_gem_context_set_user_engines(ctx); + engines = rcu_replace_pointer(ctx->engines, engines, 1); + mutex_unlock(&ctx->engines_mutex); + + engines_idle_release(ctx, engines); + + return ctx; +} + +struct i915_gem_context * +kernel_context(struct drm_i915_private *i915, + struct i915_address_space *vm) +{ + struct i915_gem_context *ctx; + struct i915_gem_proto_context *pc; + + pc = proto_context_create(i915, 0); + if (IS_ERR(pc)) + return ERR_CAST(pc); + + if (vm) { + if (pc->vm) + i915_vm_put(pc->vm); + pc->vm = i915_vm_get(vm); + } + + ctx = i915_gem_create_context(i915, pc); + proto_context_close(i915, pc); + if (IS_ERR(ctx)) + return ctx; + + i915_gem_context_clear_bannable(ctx); + i915_gem_context_set_persistence(ctx); + i915_gem_context_set_no_error_capture(ctx); + + return ctx; +} + +void kernel_context_close(struct i915_gem_context *ctx) +{ + context_close(ctx); +} |