1 /* 2 * Copyright 2017 Valve Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Andres Rodriguez <andresx7@gmail.com> 23 */ 24 25 #include <linux/fdtable.h> 26 #include <linux/file.h> 27 #include <linux/pid.h> 28 29 #include <drm/amdgpu_drm.h> 30 31 #include "amdgpu.h" 32 #include "amdgpu_sched.h" 33 #include "amdgpu_vm.h" 34 35 static int amdgpu_sched_process_priority_override(struct amdgpu_device *adev, 36 int fd, 37 int32_t priority) 38 { 39 STUB(); 40 return -ENOSYS; 41 #ifdef notyet 42 struct fd f = fdget(fd); 43 struct amdgpu_fpriv *fpriv; 44 struct amdgpu_ctx *ctx; 45 uint32_t id; 46 int r; 47 48 if (!f.file) 49 return -EINVAL; 50 51 r = amdgpu_file_to_fpriv(f.file, &fpriv); 52 if (r) { 53 fdput(f); 54 return r; 55 } 56 57 idr_for_each_entry(&fpriv->ctx_mgr.ctx_handles, ctx, id) 58 amdgpu_ctx_priority_override(ctx, priority); 59 60 fdput(f); 61 return 0; 62 #endif 63 } 64 65 static int amdgpu_sched_context_priority_override(struct amdgpu_device *adev, 66 int fd, 67 unsigned ctx_id, 68 int32_t priority) 69 { 70 STUB(); 71 return -ENOSYS; 72 #ifdef notyet 73 struct fd f = fdget(fd); 74 struct amdgpu_fpriv *fpriv; 75 struct amdgpu_ctx *ctx; 76 int r; 77 78 if (!f.file) 79 return -EINVAL; 80 81 r = amdgpu_file_to_fpriv(f.file, &fpriv); 82 if (r) { 83 fdput(f); 84 return r; 85 } 86 87 ctx = amdgpu_ctx_get(fpriv, ctx_id); 88 89 if (!ctx) { 90 fdput(f); 91 return -EINVAL; 92 } 93 94 amdgpu_ctx_priority_override(ctx, priority); 95 amdgpu_ctx_put(ctx); 96 fdput(f); 97 98 return 0; 99 #endif 100 } 101 102 int amdgpu_sched_ioctl(struct drm_device *dev, void *data, 103 struct drm_file *filp) 104 { 105 union drm_amdgpu_sched *args = data; 106 struct amdgpu_device *adev = drm_to_adev(dev); 107 int r; 108 109 /* First check the op, then the op's argument. 110 */ 111 switch (args->in.op) { 112 case AMDGPU_SCHED_OP_PROCESS_PRIORITY_OVERRIDE: 113 case AMDGPU_SCHED_OP_CONTEXT_PRIORITY_OVERRIDE: 114 break; 115 default: 116 DRM_ERROR("Invalid sched op specified: %d\n", args->in.op); 117 return -EINVAL; 118 } 119 120 if (!amdgpu_ctx_priority_is_valid(args->in.priority)) { 121 WARN(1, "Invalid context priority %d\n", args->in.priority); 122 return -EINVAL; 123 } 124 125 switch (args->in.op) { 126 case AMDGPU_SCHED_OP_PROCESS_PRIORITY_OVERRIDE: 127 r = amdgpu_sched_process_priority_override(adev, 128 args->in.fd, 129 args->in.priority); 130 break; 131 case AMDGPU_SCHED_OP_CONTEXT_PRIORITY_OVERRIDE: 132 r = amdgpu_sched_context_priority_override(adev, 133 args->in.fd, 134 args->in.ctx_id, 135 args->in.priority); 136 break; 137 default: 138 /* Impossible. 139 */ 140 r = -EINVAL; 141 break; 142 } 143 144 return r; 145 } 146