mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 05:49:33 +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
/*
|
|
* 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;
|
|
unsigned int n;
|
|
int ret;
|
|
|
|
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
|
|
if (!ctx)
|
|
return NULL;
|
|
|
|
kref_init(&ctx->ref);
|
|
INIT_LIST_HEAD(&ctx->link);
|
|
ctx->i915 = i915;
|
|
|
|
INIT_RADIX_TREE(&ctx->handles_vma, GFP_KERNEL);
|
|
INIT_LIST_HEAD(&ctx->handles_list);
|
|
|
|
for (n = 0; n < ARRAY_SIZE(ctx->__engine); n++) {
|
|
struct intel_context *ce = &ctx->__engine[n];
|
|
|
|
ce->gem_context = ctx;
|
|
}
|
|
|
|
ret = ida_simple_get(&i915->contexts.hw_ida,
|
|
0, MAX_CONTEXT_HW_ID, GFP_KERNEL);
|
|
if (ret < 0)
|
|
goto err_handles;
|
|
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_handles:
|
|
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)
|
|
{
|
|
context_close(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);
|
|
}
|
|
|
|
struct i915_gem_context *
|
|
kernel_context(struct drm_i915_private *i915)
|
|
{
|
|
return i915_gem_context_create_kernel(i915, I915_PRIORITY_NORMAL);
|
|
}
|
|
|
|
void kernel_context_close(struct i915_gem_context *ctx)
|
|
{
|
|
context_close(ctx);
|
|
}
|