mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-21 18:14:48 +08:00
5f09a9c8ab
If we move the actual cleanup of the context to a worker, we can allow the final free to be called from any context and avoid undue latency in the caller. v2: Negotiate handling the delayed contexts free by flushing the workqueue before calling i915_gem_context_fini() and performing the final free of the kernel context directly v3: Flush deferred frees before new context allocations Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170620110547.15947-2-chris@chris-wilson.co.uk
98 lines
2.5 KiB
C
98 lines
2.5 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;
|
|
int ret;
|
|
|
|
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
|
|
if (!ctx)
|
|
return NULL;
|
|
|
|
kref_init(&ctx->ref);
|
|
INIT_LIST_HEAD(&ctx->link);
|
|
ctx->i915 = i915;
|
|
|
|
ctx->vma_lut.ht_bits = VMA_HT_BITS;
|
|
ctx->vma_lut.ht_size = BIT(VMA_HT_BITS);
|
|
ctx->vma_lut.ht = kcalloc(ctx->vma_lut.ht_size,
|
|
sizeof(*ctx->vma_lut.ht),
|
|
GFP_KERNEL);
|
|
if (!ctx->vma_lut.ht)
|
|
goto err_free;
|
|
|
|
ret = ida_simple_get(&i915->contexts.hw_ida,
|
|
0, MAX_CONTEXT_HW_ID, GFP_KERNEL);
|
|
if (ret < 0)
|
|
goto err_vma_ht;
|
|
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_vma_ht:
|
|
kvfree(ctx->vma_lut.ht);
|
|
err_free:
|
|
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)
|
|
{
|
|
i915_gem_context_set_closed(ctx);
|
|
|
|
i915_ppgtt_close(&ctx->ppgtt->base);
|
|
|
|
i915_gem_context_put(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);
|
|
}
|