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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
/*
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* Copyright 2017 Valve Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Andres Rodriguez <andresx7@gmail.com>
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*/
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#include <linux/file.h>
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#include <linux/pid.h>
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#include <drm/amdgpu_drm.h>
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#include "amdgpu.h"
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#include "amdgpu_sched.h"
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#include "amdgpu_vm.h"
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static int amdgpu_sched_process_priority_override(struct amdgpu_device *adev,
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int fd,
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int32_t priority)
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{
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CLASS(fd, f)(fd);
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struct amdgpu_fpriv *fpriv;
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struct amdgpu_ctx_mgr *mgr;
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struct amdgpu_ctx *ctx;
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uint32_t id;
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int r;
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if (fd_empty(f))
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return -EINVAL;
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r = amdgpu_file_to_fpriv(fd_file(f), &fpriv);
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if (r)
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return r;
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mgr = &fpriv->ctx_mgr;
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mutex_lock(&mgr->lock);
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idr_for_each_entry(&mgr->ctx_handles, ctx, id)
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amdgpu_ctx_priority_override(ctx, priority);
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mutex_unlock(&mgr->lock);
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return 0;
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}
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static int amdgpu_sched_context_priority_override(struct amdgpu_device *adev,
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int fd,
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unsigned ctx_id,
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int32_t priority)
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{
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CLASS(fd, f)(fd);
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struct amdgpu_fpriv *fpriv;
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struct amdgpu_ctx *ctx;
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int r;
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if (fd_empty(f))
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return -EINVAL;
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r = amdgpu_file_to_fpriv(fd_file(f), &fpriv);
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if (r)
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return r;
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ctx = amdgpu_ctx_get(fpriv, ctx_id);
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if (!ctx)
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return -EINVAL;
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amdgpu_ctx_priority_override(ctx, priority);
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amdgpu_ctx_put(ctx);
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return 0;
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}
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int amdgpu_sched_ioctl(struct drm_device *dev, void *data,
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struct drm_file *filp)
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{
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union drm_amdgpu_sched *args = data;
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struct amdgpu_device *adev = drm_to_adev(dev);
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int r;
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/* First check the op, then the op's argument.
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*/
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switch (args->in.op) {
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case AMDGPU_SCHED_OP_PROCESS_PRIORITY_OVERRIDE:
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case AMDGPU_SCHED_OP_CONTEXT_PRIORITY_OVERRIDE:
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break;
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default:
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DRM_ERROR("Invalid sched op specified: %d\n", args->in.op);
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return -EINVAL;
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}
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if (!amdgpu_ctx_priority_is_valid(args->in.priority)) {
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WARN(1, "Invalid context priority %d\n", args->in.priority);
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return -EINVAL;
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}
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switch (args->in.op) {
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case AMDGPU_SCHED_OP_PROCESS_PRIORITY_OVERRIDE:
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r = amdgpu_sched_process_priority_override(adev,
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args->in.fd,
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args->in.priority);
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break;
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case AMDGPU_SCHED_OP_CONTEXT_PRIORITY_OVERRIDE:
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r = amdgpu_sched_context_priority_override(adev,
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args->in.fd,
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args->in.ctx_id,
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args->in.priority);
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break;
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default:
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/* Impossible.
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*/
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r = -EINVAL;
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break;
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}
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return r;
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}
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