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24 #include "amdgpu_xcp.h"
25 #include "amdgpu_drv.h"
27 #include <drm/drm_drv.h>
28 #include "../amdxcp/amdgpu_xcp_drv.h"
30 static int __amdgpu_xcp_run(struct amdgpu_xcp_mgr *xcp_mgr,
31 struct amdgpu_xcp_ip *xcp_ip, int xcp_state)
33 int (*run_func)(void *handle, uint32_t inst_mask);
36 if (!xcp_ip || !xcp_ip->valid || !xcp_ip->ip_funcs)
42 case AMDGPU_XCP_PREPARE_SUSPEND:
43 run_func = xcp_ip->ip_funcs->prepare_suspend;
45 case AMDGPU_XCP_SUSPEND:
46 run_func = xcp_ip->ip_funcs->suspend;
48 case AMDGPU_XCP_PREPARE_RESUME:
49 run_func = xcp_ip->ip_funcs->prepare_resume;
51 case AMDGPU_XCP_RESUME:
52 run_func = xcp_ip->ip_funcs->resume;
57 ret = run_func(xcp_mgr->adev, xcp_ip->inst_mask);
62 static int amdgpu_xcp_run_transition(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id,
65 struct amdgpu_xcp_ip *xcp_ip;
66 struct amdgpu_xcp *xcp;
69 if (xcp_id >= MAX_XCP || !xcp_mgr->xcp[xcp_id].valid)
72 xcp = &xcp_mgr->xcp[xcp_id];
73 for (i = 0; i < AMDGPU_XCP_MAX_BLOCKS; ++i) {
75 ret = __amdgpu_xcp_run(xcp_mgr, xcp_ip, state);
83 int amdgpu_xcp_prepare_suspend(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id)
85 return amdgpu_xcp_run_transition(xcp_mgr, xcp_id,
86 AMDGPU_XCP_PREPARE_SUSPEND);
89 int amdgpu_xcp_suspend(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id)
91 return amdgpu_xcp_run_transition(xcp_mgr, xcp_id, AMDGPU_XCP_SUSPEND);
94 int amdgpu_xcp_prepare_resume(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id)
96 return amdgpu_xcp_run_transition(xcp_mgr, xcp_id,
97 AMDGPU_XCP_PREPARE_RESUME);
100 int amdgpu_xcp_resume(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id)
102 return amdgpu_xcp_run_transition(xcp_mgr, xcp_id, AMDGPU_XCP_RESUME);
105 static void __amdgpu_xcp_add_block(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id,
106 struct amdgpu_xcp_ip *ip)
108 struct amdgpu_xcp *xcp;
113 xcp = &xcp_mgr->xcp[xcp_id];
114 xcp->ip[ip->ip_id] = *ip;
115 xcp->ip[ip->ip_id].valid = true;
120 int amdgpu_xcp_init(struct amdgpu_xcp_mgr *xcp_mgr, int num_xcps, int mode)
122 struct amdgpu_device *adev = xcp_mgr->adev;
123 struct amdgpu_xcp_ip ip;
127 if (!num_xcps || num_xcps > MAX_XCP)
130 xcp_mgr->mode = mode;
132 for (i = 0; i < MAX_XCP; ++i)
133 xcp_mgr->xcp[i].valid = false;
135 for (i = 0; i < num_xcps; ++i) {
136 for (j = AMDGPU_XCP_GFXHUB; j < AMDGPU_XCP_MAX_BLOCKS; ++j) {
137 ret = xcp_mgr->funcs->get_ip_details(xcp_mgr, i, j,
142 __amdgpu_xcp_add_block(xcp_mgr, i, &ip);
145 xcp_mgr->xcp[i].id = i;
147 if (xcp_mgr->funcs->get_xcp_mem_id) {
148 ret = xcp_mgr->funcs->get_xcp_mem_id(
149 xcp_mgr, &xcp_mgr->xcp[i], &mem_id);
153 xcp_mgr->xcp[i].mem_id = mem_id;
157 xcp_mgr->num_xcps = num_xcps;
158 amdgpu_xcp_update_partition_sched_list(adev);
160 xcp_mgr->num_xcp_per_mem_partition = num_xcps / xcp_mgr->adev->gmc.num_mem_partitions;
164 int amdgpu_xcp_switch_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, int mode)
166 int ret, curr_mode, num_xcps = 0;
168 if (!xcp_mgr || mode == AMDGPU_XCP_MODE_NONE)
171 if (xcp_mgr->mode == mode)
174 if (!xcp_mgr->funcs || !xcp_mgr->funcs->switch_partition_mode)
177 mutex_lock(&xcp_mgr->xcp_lock);
179 curr_mode = xcp_mgr->mode;
180 /* State set to transient mode */
181 xcp_mgr->mode = AMDGPU_XCP_MODE_TRANS;
183 ret = xcp_mgr->funcs->switch_partition_mode(xcp_mgr, mode, &num_xcps);
186 /* Failed, get whatever mode it's at now */
187 if (xcp_mgr->funcs->query_partition_mode)
188 xcp_mgr->mode = amdgpu_xcp_query_partition_mode(
189 xcp_mgr, AMDGPU_XCP_FL_LOCKED);
191 xcp_mgr->mode = curr_mode;
197 mutex_unlock(&xcp_mgr->xcp_lock);
202 int amdgpu_xcp_query_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, u32 flags)
206 if (xcp_mgr->mode == AMDGPU_XCP_MODE_NONE)
207 return xcp_mgr->mode;
209 if (!xcp_mgr->funcs || !xcp_mgr->funcs->query_partition_mode)
210 return xcp_mgr->mode;
212 if (!(flags & AMDGPU_XCP_FL_LOCKED))
213 mutex_lock(&xcp_mgr->xcp_lock);
214 mode = xcp_mgr->funcs->query_partition_mode(xcp_mgr);
215 if (xcp_mgr->mode != AMDGPU_XCP_MODE_TRANS && mode != xcp_mgr->mode)
218 "Cached partition mode %d not matching with device mode %d",
219 xcp_mgr->mode, mode);
221 if (!(flags & AMDGPU_XCP_FL_LOCKED))
222 mutex_unlock(&xcp_mgr->xcp_lock);
227 static int amdgpu_xcp_dev_alloc(struct amdgpu_device *adev)
229 struct drm_device *p_ddev;
230 struct drm_device *ddev;
233 ddev = adev_to_drm(adev);
235 for (i = 0; i < MAX_XCP; i++) {
236 ret = amdgpu_xcp_drm_dev_alloc(&p_ddev);
240 /* Redirect all IOCTLs to the primary device */
241 adev->xcp_mgr->xcp[i].rdev = p_ddev->render->dev;
242 adev->xcp_mgr->xcp[i].pdev = p_ddev->primary->dev;
243 adev->xcp_mgr->xcp[i].driver = (struct drm_driver *)p_ddev->driver;
244 adev->xcp_mgr->xcp[i].vma_offset_manager = p_ddev->vma_offset_manager;
245 p_ddev->render->dev = ddev;
246 p_ddev->primary->dev = ddev;
247 p_ddev->vma_offset_manager = ddev->vma_offset_manager;
248 p_ddev->driver = &amdgpu_partition_driver;
249 adev->xcp_mgr->xcp[i].ddev = p_ddev;
255 int amdgpu_xcp_mgr_init(struct amdgpu_device *adev, int init_mode,
257 struct amdgpu_xcp_mgr_funcs *xcp_funcs)
259 struct amdgpu_xcp_mgr *xcp_mgr;
261 if (!xcp_funcs || !xcp_funcs->switch_partition_mode ||
262 !xcp_funcs->get_ip_details)
265 xcp_mgr = kzalloc(sizeof(*xcp_mgr), GFP_KERNEL);
270 xcp_mgr->adev = adev;
271 xcp_mgr->funcs = xcp_funcs;
272 xcp_mgr->mode = init_mode;
273 mutex_init(&xcp_mgr->xcp_lock);
275 if (init_mode != AMDGPU_XCP_MODE_NONE)
276 amdgpu_xcp_init(xcp_mgr, init_num_xcps, init_mode);
278 adev->xcp_mgr = xcp_mgr;
280 return amdgpu_xcp_dev_alloc(adev);
283 int amdgpu_xcp_get_partition(struct amdgpu_xcp_mgr *xcp_mgr,
284 enum AMDGPU_XCP_IP_BLOCK ip, int instance)
286 struct amdgpu_xcp *xcp;
289 if (ip >= AMDGPU_XCP_MAX_BLOCKS)
292 for (i = 0; i < xcp_mgr->num_xcps; ++i) {
293 xcp = &xcp_mgr->xcp[i];
294 if ((xcp->valid) && (xcp->ip[ip].valid) &&
295 (xcp->ip[ip].inst_mask & BIT(instance)))
305 int amdgpu_xcp_get_inst_details(struct amdgpu_xcp *xcp,
306 enum AMDGPU_XCP_IP_BLOCK ip,
309 if (!xcp->valid || !inst_mask || !(xcp->ip[ip].valid))
312 *inst_mask = xcp->ip[ip].inst_mask;
317 int amdgpu_xcp_dev_register(struct amdgpu_device *adev,
318 const struct pci_device_id *ent)
325 for (i = 0; i < MAX_XCP; i++) {
326 ret = drm_dev_register(adev->xcp_mgr->xcp[i].ddev, ent->driver_data);
334 void amdgpu_xcp_dev_unplug(struct amdgpu_device *adev)
336 struct drm_device *p_ddev;
342 for (i = 0; i < MAX_XCP; i++) {
343 p_ddev = adev->xcp_mgr->xcp[i].ddev;
344 drm_dev_unplug(p_ddev);
345 p_ddev->render->dev = adev->xcp_mgr->xcp[i].rdev;
346 p_ddev->primary->dev = adev->xcp_mgr->xcp[i].pdev;
347 p_ddev->driver = adev->xcp_mgr->xcp[i].driver;
348 p_ddev->vma_offset_manager = adev->xcp_mgr->xcp[i].vma_offset_manager;
352 int amdgpu_xcp_open_device(struct amdgpu_device *adev,
353 struct amdgpu_fpriv *fpriv,
354 struct drm_file *file_priv)
362 for (i = 0; i < MAX_XCP; ++i) {
363 if (!adev->xcp_mgr->xcp[i].ddev)
366 if (file_priv->minor == adev->xcp_mgr->xcp[i].ddev->render) {
367 if (adev->xcp_mgr->xcp[i].valid == FALSE) {
368 dev_err(adev->dev, "renderD%d partition %d not valid!",
369 file_priv->minor->index, i);
372 dev_dbg(adev->dev, "renderD%d partition %d opened!",
373 file_priv->minor->index, i);
379 fpriv->vm.mem_id = fpriv->xcp_id == ~0 ? -1 :
380 adev->xcp_mgr->xcp[fpriv->xcp_id].mem_id;
384 void amdgpu_xcp_release_sched(struct amdgpu_device *adev,
385 struct amdgpu_ctx_entity *entity)
387 struct drm_gpu_scheduler *sched;
388 struct amdgpu_ring *ring;
393 sched = entity->entity.rq->sched;
395 ring = to_amdgpu_ring(entity->entity.rq->sched);
396 atomic_dec(&adev->xcp_mgr->xcp[ring->xcp_id].ref_cnt);