/*
* Copyright 2008 Advanced Micro Devices, Inc.
* Copyright 2008 Red Hat Inc.
* Copyright 2009 Jerome Glisse.
*
* 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
*
* Authors: Dave Airlie
* Alex Deucher
* Jerome Glisse
*/
#include <linux/ktime.h>
#include <linux/module.h>
#include <linux/pagemap.h>
#include <linux/pci.h>
#include <linux/dma-buf.h>
#include <drm/amdgpu_drm.h>
#include <drm/drm_drv.h>
#include <drm/drm_exec.h>
#include <drm/drm_gem_ttm_helper.h>
#include <drm/ttm/ttm_tt.h>
#include <drm/drm_syncobj.h>
#include "amdgpu.h"
#include "amdgpu_display.h"
#include "amdgpu_dma_buf.h"
#include "amdgpu_hmm.h"
#include "amdgpu_xgmi.h"
#include "amdgpu_vm.h"
static int
amdgpu_gem_add_input_fence(struct drm_file *filp,
uint64_t syncobj_handles_array,
uint32_t num_syncobj_handles)
{
struct dma_fence *fence;
uint32_t *syncobj_handles;
int ret, i;
if (!num_syncobj_handles)
return 0;
syncobj_handles = memdup_user(u64_to_user_ptr(syncobj_handles_array),
size_mul(sizeof(uint32_t), num_syncobj_handles));
if (IS_ERR(syncobj_handles))
return PTR_ERR(syncobj_handles);
for (i = 0; i < num_syncobj_handles; i++) {
if (!syncobj_handles[i]) {
ret = -EINVAL;
goto free_memdup;
}
ret = drm_syncobj_find_fence(filp, syncobj_handles[i], 0, 0, &fence);
if (ret)
goto free_memdup;
dma_fence_wait(fence, false);
/* TODO: optimize async handling */
dma_fence_put(fence);
}
free_memdup:
kfree(syncobj_handles);
return ret;
}
static int
amdgpu_gem_update_timeline_node(struct drm_file *filp,
uint32_t syncobj_handle,
uint64_t point,
struct drm_syncobj **syncobj,
struct dma_fence_chain **chain)
{
if (!syncobj_handle)
return 0;
/* Find the sync object */
