Files
linux-nvgpu/drivers/gpu/nvgpu/os/posix/posix-vm.c
Alex Waterman b75ee294d5 gpu: nvgpu: Remove BUG in POSIX nvgpu_vm_find_mapping()
Remove a BUG() call in nvgpu_vm_find_mapping(). This bug was
present to ensure that we evaluate whether this function is
necessary or useful before deleting it.

nvgpu_vm_find_mapping() facilitates map caching in the VM
layer. This feature is not necessary for unit testing at the
moment. As such delete the BUG() and allow this code to run.

JIRA NVGPU-1352

Change-Id: If7cdf3c0dfe0e94e32061d7775d2eef7318cf63f
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1987807
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: svc-misra-checker <svc-misra-checker@nvidia.com>
Reviewed-by: Adeel Raza <araza@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2019-01-09 09:35:09 -08:00

51 lines
1.6 KiB
C

/*
* Copyright (c) 2018-2019, NVIDIA CORPORATION. All rights reserved.
*
* 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 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 <stdlib.h>
#include <nvgpu/vm.h>
#include <nvgpu/bug.h>
#include <nvgpu/posix/vm.h>
u64 nvgpu_os_buf_get_size(struct nvgpu_os_buffer *os_buf)
{
return os_buf->size;
}
struct nvgpu_mapped_buf *nvgpu_vm_find_mapping(struct vm_gk20a *vm,
struct nvgpu_os_buffer *os_buf,
u64 map_addr,
u32 flags,
int kind)
{
/*
* No map caching for now.
*/
return NULL;
}
void nvgpu_vm_unmap_system(struct nvgpu_mapped_buf *mapped_buffer)
{
free(mapped_buffer->os_priv.buf);
}