forked from mirrors/linux
6348be02ee
fdget() is the first thing done in scope, all matching fdput() are immediately followed by leaving the scope. Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
131 lines
3.3 KiB
C
131 lines
3.3 KiB
C
/*
|
|
* Copyright 2017 Valve 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 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: Andres Rodriguez <andresx7@gmail.com>
|
|
*/
|
|
|
|
#include <linux/file.h>
|
|
#include <linux/pid.h>
|
|
|
|
#include <drm/amdgpu_drm.h>
|
|
|
|
#include "amdgpu.h"
|
|
#include "amdgpu_sched.h"
|
|
#include "amdgpu_vm.h"
|
|
|
|
static int amdgpu_sched_process_priority_override(struct amdgpu_device *adev,
|
|
int fd,
|
|
int32_t priority)
|
|
{
|
|
CLASS(fd, f)(fd);
|
|
struct amdgpu_fpriv *fpriv;
|
|
struct amdgpu_ctx_mgr *mgr;
|
|
struct amdgpu_ctx *ctx;
|
|
uint32_t id;
|
|
int r;
|
|
|
|
if (fd_empty(f))
|
|
return -EINVAL;
|
|
|
|
r = amdgpu_file_to_fpriv(fd_file(f), &fpriv);
|
|
if (r)
|
|
return r;
|
|
|
|
mgr = &fpriv->ctx_mgr;
|
|
mutex_lock(&mgr->lock);
|
|
idr_for_each_entry(&mgr->ctx_handles, ctx, id)
|
|
amdgpu_ctx_priority_override(ctx, priority);
|
|
mutex_unlock(&mgr->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int amdgpu_sched_context_priority_override(struct amdgpu_device *adev,
|
|
int fd,
|
|
unsigned ctx_id,
|
|
int32_t priority)
|
|
{
|
|
CLASS(fd, f)(fd);
|
|
struct amdgpu_fpriv *fpriv;
|
|
struct amdgpu_ctx *ctx;
|
|
int r;
|
|
|
|
if (fd_empty(f))
|
|
return -EINVAL;
|
|
|
|
r = amdgpu_file_to_fpriv(fd_file(f), &fpriv);
|
|
if (r)
|
|
return r;
|
|
|
|
ctx = amdgpu_ctx_get(fpriv, ctx_id);
|
|
|
|
if (!ctx)
|
|
return -EINVAL;
|
|
|
|
amdgpu_ctx_priority_override(ctx, priority);
|
|
amdgpu_ctx_put(ctx);
|
|
return 0;
|
|
}
|
|
|
|
int amdgpu_sched_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *filp)
|
|
{
|
|
union drm_amdgpu_sched *args = data;
|
|
struct amdgpu_device *adev = drm_to_adev(dev);
|
|
int r;
|
|
|
|
/* First check the op, then the op's argument.
|
|
*/
|
|
switch (args->in.op) {
|
|
case AMDGPU_SCHED_OP_PROCESS_PRIORITY_OVERRIDE:
|
|
case AMDGPU_SCHED_OP_CONTEXT_PRIORITY_OVERRIDE:
|
|
break;
|
|
default:
|
|
DRM_ERROR("Invalid sched op specified: %d\n", args->in.op);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!amdgpu_ctx_priority_is_valid(args->in.priority)) {
|
|
WARN(1, "Invalid context priority %d\n", args->in.priority);
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (args->in.op) {
|
|
case AMDGPU_SCHED_OP_PROCESS_PRIORITY_OVERRIDE:
|
|
r = amdgpu_sched_process_priority_override(adev,
|
|
args->in.fd,
|
|
args->in.priority);
|
|
break;
|
|
case AMDGPU_SCHED_OP_CONTEXT_PRIORITY_OVERRIDE:
|
|
r = amdgpu_sched_context_priority_override(adev,
|
|
args->in.fd,
|
|
args->in.ctx_id,
|
|
args->in.priority);
|
|
break;
|
|
default:
|
|
/* Impossible.
|
|
*/
|
|
r = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
return r;
|
|
}
|