summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c109
1 files changed, 109 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c
new file mode 100644
index 000000000000..290cc3f9c433
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c
@@ -0,0 +1,109 @@
+/*
+ * 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/fdtable.h>
+#include <linux/pid.h>
+#include <drm/amdgpu_drm.h>
+#include "amdgpu.h"
+
+#include "amdgpu_vm.h"
+
+enum amd_sched_priority amdgpu_to_sched_priority(int amdgpu_priority)
+{
+ switch (amdgpu_priority) {
+ case AMDGPU_CTX_PRIORITY_VERY_HIGH:
+ return AMD_SCHED_PRIORITY_HIGH_HW;
+ case AMDGPU_CTX_PRIORITY_HIGH:
+ return AMD_SCHED_PRIORITY_HIGH_SW;
+ case AMDGPU_CTX_PRIORITY_NORMAL:
+ return AMD_SCHED_PRIORITY_NORMAL;
+ case AMDGPU_CTX_PRIORITY_LOW:
+ case AMDGPU_CTX_PRIORITY_VERY_LOW:
+ return AMD_SCHED_PRIORITY_LOW;
+ case AMDGPU_CTX_PRIORITY_UNSET:
+ return AMD_SCHED_PRIORITY_UNSET;
+ default:
+ WARN(1, "Invalid context priority %d\n", amdgpu_priority);
+ return AMD_SCHED_PRIORITY_INVALID;
+ }
+}
+
+static int amdgpu_sched_process_priority_override(struct amdgpu_device *adev,
+ int fd,
+ enum amd_sched_priority priority)
+{
+ struct file *filp = fcheck(fd);
+ struct drm_file *file;
+ struct pid *pid;
+ struct amdgpu_fpriv *fpriv;
+ struct amdgpu_ctx *ctx;
+ uint32_t id;
+
+ if (!filp)
+ return -EINVAL;
+
+ pid = get_pid(((struct drm_file *)filp->private_data)->pid);
+
+ mutex_lock(&adev->ddev->filelist_mutex);
+ list_for_each_entry(file, &adev->ddev->filelist, lhead) {
+ if (file->pid != pid)
+ continue;
+
+ fpriv = file->driver_priv;
+ idr_for_each_entry(&fpriv->ctx_mgr.ctx_handles, ctx, id)
+ amdgpu_ctx_priority_override(ctx, priority);
+ }
+ mutex_unlock(&adev->ddev->filelist_mutex);
+
+ put_pid(pid);
+
+ 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 = dev->dev_private;
+ enum amd_sched_priority priority;
+ int r;
+
+ priority = amdgpu_to_sched_priority(args->in.priority);
+ if (args->in.flags || priority == AMD_SCHED_PRIORITY_INVALID)
+ return -EINVAL;
+
+ switch (args->in.op) {
+ case AMDGPU_SCHED_OP_PROCESS_PRIORITY_OVERRIDE:
+ r = amdgpu_sched_process_priority_override(adev,
+ args->in.fd,
+ priority);
+ break;
+ default:
+ DRM_ERROR("Invalid sched op specified: %d\n", args->in.op);
+ r = -EINVAL;
+ break;
+ }
+
+ return r;
+}