mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-08-23 15:26:50 -04:00
847fb1c216
IDR is deprecated so let's convert the context manager to xarray. In doing so we remove the context manager mutex and switch call sites which required the guarantee context cannot go away while they walk the list of context, or otherwise operate on them, to use reference counting. This allows us to use the built in xarray spinlock for all operations and just temporarily drop it when we need to call sleeping functions. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
130 lines
3.3 KiB
C
130 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;
|
|
unsigned long 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;
|
|
xa_lock(&mgr->ctx_handles);
|
|
xa_for_each(&mgr->ctx_handles, id, ctx)
|
|
amdgpu_ctx_priority_override(ctx, priority);
|
|
xa_unlock(&mgr->ctx_handles);
|
|
|
|
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))
|
|
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;
|
|
}
|