1 /*
2  * Copyright 2021 Advanced Micro Devices, Inc.
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 #include <linux/mmu_context.h>
23 #include "amdgpu.h"
24 #include "amdgpu_amdkfd.h"
25 #include "gc/gc_11_0_0_offset.h"
26 #include "gc/gc_11_0_0_sh_mask.h"
27 #include "oss/osssys_6_0_0_offset.h"
28 #include "oss/osssys_6_0_0_sh_mask.h"
29 #include "soc15_common.h"
30 #include "soc15d.h"
31 #include "v11_structs.h"
32 #include "soc21.h"
33 #include <uapi/linux/kfd_ioctl.h>
34 
35 enum hqd_dequeue_request_type {
36 	NO_ACTION = 0,
37 	DRAIN_PIPE,
38 	RESET_WAVES,
39 	SAVE_WAVES
40 };
41 
lock_srbm(struct amdgpu_device * adev,uint32_t mec,uint32_t pipe,uint32_t queue,uint32_t vmid)42 static void lock_srbm(struct amdgpu_device *adev, uint32_t mec, uint32_t pipe,
43 			uint32_t queue, uint32_t vmid)
44 {
45 	mutex_lock(&adev->srbm_mutex);
46 	soc21_grbm_select(adev, mec, pipe, queue, vmid);
47 }
48 
unlock_srbm(struct amdgpu_device * adev)49 static void unlock_srbm(struct amdgpu_device *adev)
50 {
51 	soc21_grbm_select(adev, 0, 0, 0, 0);
52 	mutex_unlock(&adev->srbm_mutex);
53 }
54 
acquire_queue(struct amdgpu_device * adev,uint32_t pipe_id,uint32_t queue_id)55 static void acquire_queue(struct amdgpu_device *adev, uint32_t pipe_id,
56 				uint32_t queue_id)
57 {
58 	uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
59 	uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
60 
61 	lock_srbm(adev, mec, pipe, queue_id, 0);
62 }
63 
get_queue_mask(struct amdgpu_device * adev,uint32_t pipe_id,uint32_t queue_id)64 static uint64_t get_queue_mask(struct amdgpu_device *adev,
65 			       uint32_t pipe_id, uint32_t queue_id)
66 {
67 	unsigned int bit = pipe_id * adev->gfx.mec.num_queue_per_pipe +
68 			queue_id;
69 
70 	return 1ull << bit;
71 }
72 
release_queue(struct amdgpu_device * adev)73 static void release_queue(struct amdgpu_device *adev)
74 {
75 	unlock_srbm(adev);
76 }
77 
program_sh_mem_settings_v11(struct amdgpu_device * adev,uint32_t vmid,uint32_t sh_mem_config,uint32_t sh_mem_ape1_base,uint32_t sh_mem_ape1_limit,uint32_t sh_mem_bases,uint32_t inst)78 static void program_sh_mem_settings_v11(struct amdgpu_device *adev, uint32_t vmid,
79 					uint32_t sh_mem_config,
80 					uint32_t sh_mem_ape1_base,
81 					uint32_t sh_mem_ape1_limit,
82 					uint32_t sh_mem_bases, uint32_t inst)
83 {
84 	lock_srbm(adev, 0, 0, 0, vmid);
85 
86 	WREG32(SOC15_REG_OFFSET(GC, 0, regSH_MEM_CONFIG), sh_mem_config);
87 	WREG32(SOC15_REG_OFFSET(GC, 0, regSH_MEM_BASES), sh_mem_bases);
88 
89 	unlock_srbm(adev);
90 }
91 
set_pasid_vmid_mapping_v11(struct amdgpu_device * adev,unsigned int pasid,unsigned int vmid,uint32_t inst)92 static int set_pasid_vmid_mapping_v11(struct amdgpu_device *adev, unsigned int pasid,
93 					unsigned int vmid, uint32_t inst)
94 {
95 	uint32_t value = pasid << IH_VMID_0_LUT__PASID__SHIFT;
96 
97 	/* Mapping vmid to pasid also for IH block */
98 	pr_debug("mapping vmid %d -> pasid %d in IH block for GFX client\n",
99 			vmid, pasid);
100 	WREG32(SOC15_REG_OFFSET(OSSSYS, 0, regIH_VMID_0_LUT) + vmid, value);
101 
102 	return 0;
103 }
104 
init_interrupts_v11(struct amdgpu_device * adev,uint32_t pipe_id,uint32_t inst)105 static int init_interrupts_v11(struct amdgpu_device *adev, uint32_t pipe_id,
106 				uint32_t inst)
107 {
108 	uint32_t mec;
109 	uint32_t pipe;
110 
111 	mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
112 	pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
113 
114 	lock_srbm(adev, mec, pipe, 0, 0);
115 
116 	WREG32_SOC15(GC, 0, regCPC_INT_CNTL,
117 		CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK |
118 		CP_INT_CNTL_RING0__OPCODE_ERROR_INT_ENABLE_MASK);
119 
120 	unlock_srbm(adev);
121 
122 	return 0;
123 }
124 
get_sdma_rlc_reg_offset(struct amdgpu_device * adev,unsigned int engine_id,unsigned int queue_id)125 static uint32_t get_sdma_rlc_reg_offset(struct amdgpu_device *adev,
126 				unsigned int engine_id,
127 				unsigned int queue_id)
128 {
129 	uint32_t sdma_engine_reg_base = 0;
130 	uint32_t sdma_rlc_reg_offset;
131 
132 	switch (engine_id) {
133 	case 0:
134 		sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA0, 0,
135 				regSDMA0_QUEUE0_RB_CNTL) - regSDMA0_QUEUE0_RB_CNTL;
136 		break;
137 	case 1:
138 		sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA1, 0,
139 				regSDMA1_QUEUE0_RB_CNTL) - regSDMA0_QUEUE0_RB_CNTL;
140 		break;
141 	default:
142 		BUG();
143 	}
144 
145 	sdma_rlc_reg_offset = sdma_engine_reg_base
146 		+ queue_id * (regSDMA0_QUEUE1_RB_CNTL - regSDMA0_QUEUE0_RB_CNTL);
147 
148 	pr_debug("RLC register offset for SDMA%d RLC%d: 0x%x\n", engine_id,
149 			queue_id, sdma_rlc_reg_offset);
150 
151 	return sdma_rlc_reg_offset;
152 }
153 
get_mqd(void * mqd)154 static inline struct v11_compute_mqd *get_mqd(void *mqd)
155 {
156 	return (struct v11_compute_mqd *)mqd;
157 }
158 
get_sdma_mqd(void * mqd)159 static inline struct v11_sdma_mqd *get_sdma_mqd(void *mqd)
160 {
161 	return (struct v11_sdma_mqd *)mqd;
162 }
163 
hqd_load_v11(struct amdgpu_device * adev,void * mqd,uint32_t pipe_id,uint32_t queue_id,uint32_t __user * wptr,uint32_t wptr_shift,uint32_t wptr_mask,struct mm_struct * mm,uint32_t inst)164 static int hqd_load_v11(struct amdgpu_device *adev, void *mqd, uint32_t pipe_id,
165 			uint32_t queue_id, uint32_t __user *wptr,
166 			uint32_t wptr_shift, uint32_t wptr_mask,
167 			struct mm_struct *mm, uint32_t inst)
168 {
169 	struct v11_compute_mqd *m;
170 	uint32_t *mqd_hqd;
171 	uint32_t reg, hqd_base, data;
172 
173 	m = get_mqd(mqd);
174 
175 	pr_debug("Load hqd of pipe %d queue %d\n", pipe_id, queue_id);
176 	acquire_queue(adev, pipe_id, queue_id);
177 
178 	/* HIQ is set during driver init period with vmid set to 0*/
179 	if (m->cp_hqd_vmid == 0) {
180 		uint32_t value, mec, pipe;
181 
182 		mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
183 		pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
184 
185 		pr_debug("kfd: set HIQ, mec:%d, pipe:%d, queue:%d.\n",
186 			mec, pipe, queue_id);
187 		value = RREG32(SOC15_REG_OFFSET(GC, 0, regRLC_CP_SCHEDULERS));
188 		value = REG_SET_FIELD(value, RLC_CP_SCHEDULERS, scheduler1,
189 			((mec << 5) | (pipe << 3) | queue_id | 0x80));
190 		WREG32(SOC15_REG_OFFSET(GC, 0, regRLC_CP_SCHEDULERS), value);
191 	}
192 
193 	/* HQD registers extend from CP_MQD_BASE_ADDR to CP_HQD_EOP_WPTR_MEM. */
194 	mqd_hqd = &m->cp_mqd_base_addr_lo;
195 	hqd_base = SOC15_REG_OFFSET(GC, 0, regCP_MQD_BASE_ADDR);
196 
197 	for (reg = hqd_base;
198 	     reg <= SOC15_REG_OFFSET(GC, 0, regCP_HQD_PQ_WPTR_HI); reg++)
199 		WREG32(reg, mqd_hqd[reg - hqd_base]);
200 
201 
202 	/* Activate doorbell logic before triggering WPTR poll. */
203 	data = REG_SET_FIELD(m->cp_hqd_pq_doorbell_control,
204 			     CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 1);
205 	WREG32(SOC15_REG_OFFSET(GC, 0, regCP_HQD_PQ_DOORBELL_CONTROL), data);
206 
207 	if (wptr) {
208 		/* Don't read wptr with get_user because the user
209 		 * context may not be accessible (if this function
210 		 * runs in a work queue). Instead trigger a one-shot
211 		 * polling read from memory in the CP. This assumes
212 		 * that wptr is GPU-accessible in the queue's VMID via
213 		 * ATC or SVM. WPTR==RPTR before starting the poll so
214 		 * the CP starts fetching new commands from the right
215 		 * place.
216 		 *
217 		 * Guessing a 64-bit WPTR from a 32-bit RPTR is a bit
218 		 * tricky. Assume that the queue didn't overflow. The
219 		 * number of valid bits in the 32-bit RPTR depends on
220 		 * the queue size. The remaining bits are taken from
221 		 * the saved 64-bit WPTR. If the WPTR wrapped, add the
222 		 * queue size.
223 		 */
224 		uint32_t queue_size =
225 			2 << REG_GET_FIELD(m->cp_hqd_pq_control,
226 					   CP_HQD_PQ_CONTROL, QUEUE_SIZE);
227 		uint64_t guessed_wptr = m->cp_hqd_pq_rptr & (queue_size - 1);
228 
229 		if ((m->cp_hqd_pq_wptr_lo & (queue_size - 1)) < guessed_wptr)
230 			guessed_wptr += queue_size;
231 		guessed_wptr += m->cp_hqd_pq_wptr_lo & ~(queue_size - 1);
232 		guessed_wptr += (uint64_t)m->cp_hqd_pq_wptr_hi << 32;
233 
234 		WREG32(SOC15_REG_OFFSET(GC, 0, regCP_HQD_PQ_WPTR_LO),
235 		       lower_32_bits(guessed_wptr));
236 		WREG32(SOC15_REG_OFFSET(GC, 0, regCP_HQD_PQ_WPTR_HI),
237 		       upper_32_bits(guessed_wptr));
238 		WREG32(SOC15_REG_OFFSET(GC, 0, regCP_HQD_PQ_WPTR_POLL_ADDR),
239 		       lower_32_bits((uint64_t)wptr));
240 		WREG32(SOC15_REG_OFFSET(GC, 0, regCP_HQD_PQ_WPTR_POLL_ADDR_HI),
241 		       upper_32_bits((uint64_t)wptr));
242 		pr_debug("%s setting CP_PQ_WPTR_POLL_CNTL1 to %x\n", __func__,
243 			 (uint32_t)get_queue_mask(adev, pipe_id, queue_id));
244 		WREG32(SOC15_REG_OFFSET(GC, 0, regCP_PQ_WPTR_POLL_CNTL1),
245 		       (uint32_t)get_queue_mask(adev, pipe_id, queue_id));
246 	}
247 
248 	/* Start the EOP fetcher */
249 	WREG32(SOC15_REG_OFFSET(GC, 0, regCP_HQD_EOP_RPTR),
250 	       REG_SET_FIELD(m->cp_hqd_eop_rptr,
251 			     CP_HQD_EOP_RPTR, INIT_FETCHER, 1));
252 
253 	data = REG_SET_FIELD(m->cp_hqd_active, CP_HQD_ACTIVE, ACTIVE, 1);
254 	WREG32(SOC15_REG_OFFSET(GC, 0, regCP_HQD_ACTIVE), data);
255 
256 	release_queue(adev);
257 
258 	return 0;
259 }
260 
hiq_mqd_load_v11(struct amdgpu_device * adev,void * mqd,uint32_t pipe_id,uint32_t queue_id,uint32_t doorbell_off,uint32_t inst)261 static int hiq_mqd_load_v11(struct amdgpu_device *adev, void *mqd,
262 			      uint32_t pipe_id, uint32_t queue_id,
263 			      uint32_t doorbell_off, uint32_t inst)
264 {
265 	struct amdgpu_ring *kiq_ring = &adev->gfx.kiq[0].ring;
266 	struct v11_compute_mqd *m;
267 	uint32_t mec, pipe;
268 	int r;
269 
270 	m = get_mqd(mqd);
271 
272 	acquire_queue(adev, pipe_id, queue_id);
273 
274 	mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
275 	pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
276 
277 	pr_debug("kfd: set HIQ, mec:%d, pipe:%d, queue:%d.\n",
278 		 mec, pipe, queue_id);
279 
280 	spin_lock(&adev->gfx.kiq[0].ring_lock);
281 	r = amdgpu_ring_alloc(kiq_ring, 7);
282 	if (r) {
283 		pr_err("Failed to alloc KIQ (%d).\n", r);
284 		goto out_unlock;
285 	}
286 
287 	amdgpu_ring_write(kiq_ring, PACKET3(PACKET3_MAP_QUEUES, 5));
288 	amdgpu_ring_write(kiq_ring,
289 			  PACKET3_MAP_QUEUES_QUEUE_SEL(0) | /* Queue_Sel */
290 			  PACKET3_MAP_QUEUES_VMID(m->cp_hqd_vmid) | /* VMID */
291 			  PACKET3_MAP_QUEUES_QUEUE(queue_id) |
292 			  PACKET3_MAP_QUEUES_PIPE(pipe) |
293 			  PACKET3_MAP_QUEUES_ME((mec - 1)) |
294 			  PACKET3_MAP_QUEUES_QUEUE_TYPE(0) | /*queue_type: normal compute queue */
295 			  PACKET3_MAP_QUEUES_ALLOC_FORMAT(0) | /* alloc format: all_on_one_pipe */
296 			  PACKET3_MAP_QUEUES_ENGINE_SEL(1) | /* engine_sel: hiq */
297 			  PACKET3_MAP_QUEUES_NUM_QUEUES(1)); /* num_queues: must be 1 */
298 	amdgpu_ring_write(kiq_ring,
299 			PACKET3_MAP_QUEUES_DOORBELL_OFFSET(doorbell_off));
300 	amdgpu_ring_write(kiq_ring, m->cp_mqd_base_addr_lo);
301 	amdgpu_ring_write(kiq_ring, m->cp_mqd_base_addr_hi);
302 	amdgpu_ring_write(kiq_ring, m->cp_hqd_pq_wptr_poll_addr_lo);
303 	amdgpu_ring_write(kiq_ring, m->cp_hqd_pq_wptr_poll_addr_hi);
304 	amdgpu_ring_commit(kiq_ring);
305 
306 out_unlock:
307 	spin_unlock(&adev->gfx.kiq[0].ring_lock);
308 	release_queue(adev);
309 
310 	return r;
311 }
312 
hqd_dump_v11(struct amdgpu_device * adev,uint32_t pipe_id,uint32_t queue_id,uint32_t (** dump)[2],uint32_t * n_regs,uint32_t inst)313 static int hqd_dump_v11(struct amdgpu_device *adev,
314 			uint32_t pipe_id, uint32_t queue_id,
315 			uint32_t (**dump)[2], uint32_t *n_regs, uint32_t inst)
316 {
317 	uint32_t i = 0, reg;
318 #define HQD_N_REGS 56
319 #define DUMP_REG(addr) do {				\
320 		if (WARN_ON_ONCE(i >= HQD_N_REGS))	\
321 			break;				\
322 		(*dump)[i][0] = (addr) << 2;		\
323 		(*dump)[i++][1] = RREG32(addr);		\
324 	} while (0)
325 
326 	*dump = kmalloc(HQD_N_REGS*2*sizeof(uint32_t), GFP_KERNEL);
327 	if (*dump == NULL)
328 		return -ENOMEM;
329 
330 	acquire_queue(adev, pipe_id, queue_id);
331 
332 	for (reg = SOC15_REG_OFFSET(GC, 0, regCP_MQD_BASE_ADDR);
333 	     reg <= SOC15_REG_OFFSET(GC, 0, regCP_HQD_PQ_WPTR_HI); reg++)
334 		DUMP_REG(reg);
335 
336 	release_queue(adev);
337 
338 	WARN_ON_ONCE(i != HQD_N_REGS);
339 	*n_regs = i;
340 
341 	return 0;
342 }
343 
hqd_sdma_load_v11(struct amdgpu_device * adev,void * mqd,uint32_t __user * wptr,struct mm_struct * mm)344 static int hqd_sdma_load_v11(struct amdgpu_device *adev, void *mqd,
345 			     uint32_t __user *wptr, struct mm_struct *mm)
346 {
347 	struct v11_sdma_mqd *m;
348 	uint32_t sdma_rlc_reg_offset;
349 	unsigned long end_jiffies;
350 	uint32_t data;
351 	uint64_t data64;
352 	uint64_t __user *wptr64 = (uint64_t __user *)wptr;
353 
354 	m = get_sdma_mqd(mqd);
355 	sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, m->sdma_engine_id,
356 					    m->sdma_queue_id);
357 
358 	WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_CNTL,
359 		m->sdmax_rlcx_rb_cntl & (~SDMA0_QUEUE0_RB_CNTL__RB_ENABLE_MASK));
360 
361 	end_jiffies = msecs_to_jiffies(2000) + jiffies;
362 	while (true) {
363 		data = RREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_CONTEXT_STATUS);
364 		if (data & SDMA0_QUEUE0_CONTEXT_STATUS__IDLE_MASK)
365 			break;
366 		if (time_after(jiffies, end_jiffies)) {
367 			pr_err("SDMA RLC not idle in %s\n", __func__);
368 			return -ETIME;
369 		}
370 		usleep_range(500, 1000);
371 	}
372 
373 	WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_DOORBELL_OFFSET,
374 	       m->sdmax_rlcx_doorbell_offset);
375 
376 	data = REG_SET_FIELD(m->sdmax_rlcx_doorbell, SDMA0_QUEUE0_DOORBELL,
377 			     ENABLE, 1);
378 	WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_DOORBELL, data);
379 	WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_RPTR,
380 				m->sdmax_rlcx_rb_rptr);
381 	WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_RPTR_HI,
382 				m->sdmax_rlcx_rb_rptr_hi);
383 
384 	WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_MINOR_PTR_UPDATE, 1);
385 	if (read_user_wptr(mm, wptr64, data64)) {
386 		WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_WPTR,
387 		       lower_32_bits(data64));
388 		WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_WPTR_HI,
389 		       upper_32_bits(data64));
390 	} else {
391 		WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_WPTR,
392 		       m->sdmax_rlcx_rb_rptr);
393 		WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_WPTR_HI,
394 		       m->sdmax_rlcx_rb_rptr_hi);
395 	}
396 	WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_MINOR_PTR_UPDATE, 0);
397 
398 	WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_BASE, m->sdmax_rlcx_rb_base);
399 	WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_BASE_HI,
400 			m->sdmax_rlcx_rb_base_hi);
401 	WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_RPTR_ADDR_LO,
402 			m->sdmax_rlcx_rb_rptr_addr_lo);
403 	WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_RPTR_ADDR_HI,
404 			m->sdmax_rlcx_rb_rptr_addr_hi);
405 
406 	data = REG_SET_FIELD(m->sdmax_rlcx_rb_cntl, SDMA0_QUEUE0_RB_CNTL,
407 			     RB_ENABLE, 1);
408 	WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_CNTL, data);
409 
410 	return 0;
411 }
412 
hqd_sdma_dump_v11(struct amdgpu_device * adev,uint32_t engine_id,uint32_t queue_id,uint32_t (** dump)[2],uint32_t * n_regs)413 static int hqd_sdma_dump_v11(struct amdgpu_device *adev,
414 			     uint32_t engine_id, uint32_t queue_id,
415 			     uint32_t (**dump)[2], uint32_t *n_regs)
416 {
417 	uint32_t sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev,
418 			engine_id, queue_id);
419 	uint32_t i = 0, reg;
420 #undef HQD_N_REGS
421 #define HQD_N_REGS (7+11+1+12+12)
422 
423 	*dump = kmalloc(HQD_N_REGS*2*sizeof(uint32_t), GFP_KERNEL);
424 	if (*dump == NULL)
425 		return -ENOMEM;
426 
427 	for (reg = regSDMA0_QUEUE0_RB_CNTL;
428 	     reg <= regSDMA0_QUEUE0_RB_WPTR_HI; reg++)
429 		DUMP_REG(sdma_rlc_reg_offset + reg);
430 	for (reg = regSDMA0_QUEUE0_RB_RPTR_ADDR_HI;
431 	     reg <= regSDMA0_QUEUE0_DOORBELL; reg++)
432 		DUMP_REG(sdma_rlc_reg_offset + reg);
433 	for (reg = regSDMA0_QUEUE0_DOORBELL_LOG;
434 	     reg <= regSDMA0_QUEUE0_DOORBELL_LOG; reg++)
435 		DUMP_REG(sdma_rlc_reg_offset + reg);
436 	for (reg = regSDMA0_QUEUE0_DOORBELL_OFFSET;
437 	     reg <= regSDMA0_QUEUE0_RB_PREEMPT; reg++)
438 		DUMP_REG(sdma_rlc_reg_offset + reg);
439 	for (reg = regSDMA0_QUEUE0_MIDCMD_DATA0;
440 	     reg <= regSDMA0_QUEUE0_MIDCMD_CNTL; reg++)
441 		DUMP_REG(sdma_rlc_reg_offset + reg);
442 
443 	WARN_ON_ONCE(i != HQD_N_REGS);
444 	*n_regs = i;
445 
446 	return 0;
447 }
448 
hqd_is_occupied_v11(struct amdgpu_device * adev,uint64_t queue_address,uint32_t pipe_id,uint32_t queue_id,uint32_t inst)449 static bool hqd_is_occupied_v11(struct amdgpu_device *adev, uint64_t queue_address,
450 				uint32_t pipe_id, uint32_t queue_id, uint32_t inst)
451 {
452 	uint32_t act;
453 	bool retval = false;
454 	uint32_t low, high;
455 
456 	acquire_queue(adev, pipe_id, queue_id);
457 	act = RREG32(SOC15_REG_OFFSET(GC, 0, regCP_HQD_ACTIVE));
458 	if (act) {
459 		low = lower_32_bits(queue_address >> 8);
460 		high = upper_32_bits(queue_address >> 8);
461 
462 		if (low == RREG32(SOC15_REG_OFFSET(GC, 0, regCP_HQD_PQ_BASE)) &&
463 		   high == RREG32(SOC15_REG_OFFSET(GC, 0, regCP_HQD_PQ_BASE_HI)))
464 			retval = true;
465 	}
466 	release_queue(adev);
467 	return retval;
468 }
469 
hqd_sdma_is_occupied_v11(struct amdgpu_device * adev,void * mqd)470 static bool hqd_sdma_is_occupied_v11(struct amdgpu_device *adev, void *mqd)
471 {
472 	struct v11_sdma_mqd *m;
473 	uint32_t sdma_rlc_reg_offset;
474 	uint32_t sdma_rlc_rb_cntl;
475 
476 	m = get_sdma_mqd(mqd);
477 	sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, m->sdma_engine_id,
478 					    m->sdma_queue_id);
479 
480 	sdma_rlc_rb_cntl = RREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_CNTL);
481 
482 	if (sdma_rlc_rb_cntl & SDMA0_QUEUE0_RB_CNTL__RB_ENABLE_MASK)
483 		return true;
484 
485 	return false;
486 }
487 
hqd_destroy_v11(struct amdgpu_device * adev,void * mqd,enum kfd_preempt_type reset_type,unsigned int utimeout,uint32_t pipe_id,uint32_t queue_id,uint32_t inst)488 static int hqd_destroy_v11(struct amdgpu_device *adev, void *mqd,
489 				enum kfd_preempt_type reset_type,
490 				unsigned int utimeout, uint32_t pipe_id,
491 				uint32_t queue_id, uint32_t inst)
492 {
493 	enum hqd_dequeue_request_type type;
494 	unsigned long end_jiffies;
495 	uint32_t temp;
496 	struct v11_compute_mqd *m = get_mqd(mqd);
497 
498 	acquire_queue(adev, pipe_id, queue_id);
499 
500 	if (m->cp_hqd_vmid == 0)
501 		WREG32_FIELD15_PREREG(GC, 0, RLC_CP_SCHEDULERS, scheduler1, 0);
502 
503 	switch (reset_type) {
504 	case KFD_PREEMPT_TYPE_WAVEFRONT_DRAIN:
505 		type = DRAIN_PIPE;
506 		break;
507 	case KFD_PREEMPT_TYPE_WAVEFRONT_RESET:
508 		type = RESET_WAVES;
509 		break;
510 	default:
511 		type = DRAIN_PIPE;
512 		break;
513 	}
514 
515 	WREG32(SOC15_REG_OFFSET(GC, 0, regCP_HQD_DEQUEUE_REQUEST), type);
516 
517 	end_jiffies = (utimeout * HZ / 1000) + jiffies;
518 	while (true) {
519 		temp = RREG32(SOC15_REG_OFFSET(GC, 0, regCP_HQD_ACTIVE));
520 		if (!(temp & CP_HQD_ACTIVE__ACTIVE_MASK))
521 			break;
522 		if (time_after(jiffies, end_jiffies)) {
523 			pr_err("cp queue pipe %d queue %d preemption failed\n",
524 					pipe_id, queue_id);
525 			release_queue(adev);
526 			return -ETIME;
527 		}
528 		usleep_range(500, 1000);
529 	}
530 
531 	release_queue(adev);
532 	return 0;
533 }
534 
hqd_sdma_destroy_v11(struct amdgpu_device * adev,void * mqd,unsigned int utimeout)535 static int hqd_sdma_destroy_v11(struct amdgpu_device *adev, void *mqd,
536 				unsigned int utimeout)
537 {
538 	struct v11_sdma_mqd *m;
539 	uint32_t sdma_rlc_reg_offset;
540 	uint32_t temp;
541 	unsigned long end_jiffies = (utimeout * HZ / 1000) + jiffies;
542 
543 	m = get_sdma_mqd(mqd);
544 	sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, m->sdma_engine_id,
545 					    m->sdma_queue_id);
546 
547 	temp = RREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_CNTL);
548 	temp = temp & ~SDMA0_QUEUE0_RB_CNTL__RB_ENABLE_MASK;
549 	WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_CNTL, temp);
550 
551 	while (true) {
552 		temp = RREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_CONTEXT_STATUS);
553 		if (temp & SDMA0_QUEUE0_CONTEXT_STATUS__IDLE_MASK)
554 			break;
555 		if (time_after(jiffies, end_jiffies)) {
556 			pr_err("SDMA RLC not idle in %s\n", __func__);
557 			return -ETIME;
558 		}
559 		usleep_range(500, 1000);
560 	}
561 
562 	WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_DOORBELL, 0);
563 	WREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_CNTL,
564 		RREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_CNTL) |
565 		SDMA0_QUEUE0_RB_CNTL__RB_ENABLE_MASK);
566 
567 	m->sdmax_rlcx_rb_rptr = RREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_RPTR);
568 	m->sdmax_rlcx_rb_rptr_hi =
569 		RREG32(sdma_rlc_reg_offset + regSDMA0_QUEUE0_RB_RPTR_HI);
570 
571 	return 0;
572 }
573 
wave_control_execute_v11(struct amdgpu_device * adev,uint32_t gfx_index_val,uint32_t sq_cmd,uint32_t inst)574 static int wave_control_execute_v11(struct amdgpu_device *adev,
575 					uint32_t gfx_index_val,
576 					uint32_t sq_cmd, uint32_t inst)
577 {
578 	uint32_t data = 0;
579 
580 	mutex_lock(&adev->grbm_idx_mutex);
581 
582 	WREG32(SOC15_REG_OFFSET(GC, 0, regGRBM_GFX_INDEX), gfx_index_val);
583 	WREG32(SOC15_REG_OFFSET(GC, 0, regSQ_CMD), sq_cmd);
584 
585 	data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
586 		INSTANCE_BROADCAST_WRITES, 1);
587 	data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
588 		SA_BROADCAST_WRITES, 1);
589 	data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
590 		SE_BROADCAST_WRITES, 1);
591 
592 	WREG32(SOC15_REG_OFFSET(GC, 0, regGRBM_GFX_INDEX), data);
593 	mutex_unlock(&adev->grbm_idx_mutex);
594 
595 	return 0;
596 }
597 
set_vm_context_page_table_base_v11(struct amdgpu_device * adev,uint32_t vmid,uint64_t page_table_base)598 static void set_vm_context_page_table_base_v11(struct amdgpu_device *adev,
599 		uint32_t vmid, uint64_t page_table_base)
600 {
601 	if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid)) {
602 		pr_err("trying to set page table base for wrong VMID %u\n",
603 		       vmid);
604 		return;
605 	}
606 
607 	/* SDMA is on gfxhub as well for gfx11 adapters */
608 	adev->gfxhub.funcs->setup_vm_pt_regs(adev, vmid, page_table_base);
609 }
610 
611 /*
612  * Returns TRAP_EN, EXCP_EN and EXCP_REPLACE.
613  *
614  * restore_dbg_registers is ignored here but is a general interface requirement
615  * for devices that support GFXOFF and where the RLC save/restore list
616  * does not support hw registers for debugging i.e. the driver has to manually
617  * initialize the debug mode registers after it has disabled GFX off during the
618  * debug session.
619  */
kgd_gfx_v11_enable_debug_trap(struct amdgpu_device * adev,bool restore_dbg_registers,uint32_t vmid)620 static uint32_t kgd_gfx_v11_enable_debug_trap(struct amdgpu_device *adev,
621 					    bool restore_dbg_registers,
622 					    uint32_t vmid)
623 {
624 	uint32_t data = 0;
625 
626 	data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, TRAP_EN, 1);
627 	data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_EN, 0);
628 	data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_REPLACE, 0);
629 
630 	return data;
631 }
632 
633 /* Returns TRAP_EN, EXCP_EN and EXCP_REPLACE. */
kgd_gfx_v11_disable_debug_trap(struct amdgpu_device * adev,bool keep_trap_enabled,uint32_t vmid)634 static uint32_t kgd_gfx_v11_disable_debug_trap(struct amdgpu_device *adev,
635 						bool keep_trap_enabled,
636 						uint32_t vmid)
637 {
638 	uint32_t data = 0;
639 
640 	data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, TRAP_EN, 1);
641 	data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_EN, 0);
642 	data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_REPLACE, 0);
643 
644 	return data;
645 }
646 
kgd_gfx_v11_validate_trap_override_request(struct amdgpu_device * adev,uint32_t trap_override,uint32_t * trap_mask_supported)647 static int kgd_gfx_v11_validate_trap_override_request(struct amdgpu_device *adev,
648 							uint32_t trap_override,
649 							uint32_t *trap_mask_supported)
650 {
651 	*trap_mask_supported &= KFD_DBG_TRAP_MASK_FP_INVALID |
652 				KFD_DBG_TRAP_MASK_FP_INPUT_DENORMAL |
653 				KFD_DBG_TRAP_MASK_FP_DIVIDE_BY_ZERO |
654 				KFD_DBG_TRAP_MASK_FP_OVERFLOW |
655 				KFD_DBG_TRAP_MASK_FP_UNDERFLOW |
656 				KFD_DBG_TRAP_MASK_FP_INEXACT |
657 				KFD_DBG_TRAP_MASK_INT_DIVIDE_BY_ZERO |
658 				KFD_DBG_TRAP_MASK_DBG_ADDRESS_WATCH |
659 				KFD_DBG_TRAP_MASK_DBG_MEMORY_VIOLATION;
660 
661 	if (adev->ip_versions[GC_HWIP][0] >= IP_VERSION(11, 0, 4))
662 		*trap_mask_supported |= KFD_DBG_TRAP_MASK_TRAP_ON_WAVE_START |
663 					KFD_DBG_TRAP_MASK_TRAP_ON_WAVE_END;
664 
665 	if (trap_override != KFD_DBG_TRAP_OVERRIDE_OR &&
666 			trap_override != KFD_DBG_TRAP_OVERRIDE_REPLACE)
667 		return -EPERM;
668 
669 	return 0;
670 }
671 
trap_mask_map_sw_to_hw(uint32_t mask)672 static uint32_t trap_mask_map_sw_to_hw(uint32_t mask)
673 {
674 	uint32_t trap_on_start = (mask & KFD_DBG_TRAP_MASK_TRAP_ON_WAVE_START) ? 1 : 0;
675 	uint32_t trap_on_end = (mask & KFD_DBG_TRAP_MASK_TRAP_ON_WAVE_END) ? 1 : 0;
676 	uint32_t excp_en = mask & (KFD_DBG_TRAP_MASK_FP_INVALID |
677 			KFD_DBG_TRAP_MASK_FP_INPUT_DENORMAL |
678 			KFD_DBG_TRAP_MASK_FP_DIVIDE_BY_ZERO |
679 			KFD_DBG_TRAP_MASK_FP_OVERFLOW |
680 			KFD_DBG_TRAP_MASK_FP_UNDERFLOW |
681 			KFD_DBG_TRAP_MASK_FP_INEXACT |
682 			KFD_DBG_TRAP_MASK_INT_DIVIDE_BY_ZERO |
683 			KFD_DBG_TRAP_MASK_DBG_ADDRESS_WATCH |
684 			KFD_DBG_TRAP_MASK_DBG_MEMORY_VIOLATION);
685 	uint32_t ret;
686 
687 	ret = REG_SET_FIELD(0, SPI_GDBG_PER_VMID_CNTL, EXCP_EN, excp_en);
688 	ret = REG_SET_FIELD(ret, SPI_GDBG_PER_VMID_CNTL, TRAP_ON_START, trap_on_start);
689 	ret = REG_SET_FIELD(ret, SPI_GDBG_PER_VMID_CNTL, TRAP_ON_END, trap_on_end);
690 
691 	return ret;
692 }
693 
trap_mask_map_hw_to_sw(uint32_t mask)694 static uint32_t trap_mask_map_hw_to_sw(uint32_t mask)
695 {
696 	uint32_t ret = REG_GET_FIELD(mask, SPI_GDBG_PER_VMID_CNTL, EXCP_EN);
697 
698 	if (REG_GET_FIELD(mask, SPI_GDBG_PER_VMID_CNTL, TRAP_ON_START))
699 		ret |= KFD_DBG_TRAP_MASK_TRAP_ON_WAVE_START;
700 
701 	if (REG_GET_FIELD(mask, SPI_GDBG_PER_VMID_CNTL, TRAP_ON_END))
702 		ret |= KFD_DBG_TRAP_MASK_TRAP_ON_WAVE_END;
703 
704 	return ret;
705 }
706 
707 /* Returns TRAP_EN, EXCP_EN and EXCP_REPLACE. */
kgd_gfx_v11_set_wave_launch_trap_override(struct amdgpu_device * adev,uint32_t vmid,uint32_t trap_override,uint32_t trap_mask_bits,uint32_t trap_mask_request,uint32_t * trap_mask_prev,uint32_t kfd_dbg_trap_cntl_prev)708 static uint32_t kgd_gfx_v11_set_wave_launch_trap_override(struct amdgpu_device *adev,
709 					uint32_t vmid,
710 					uint32_t trap_override,
711 					uint32_t trap_mask_bits,
712 					uint32_t trap_mask_request,
713 					uint32_t *trap_mask_prev,
714 					uint32_t kfd_dbg_trap_cntl_prev)
715 {
716 	uint32_t data = 0;
717 
718 	*trap_mask_prev = trap_mask_map_hw_to_sw(kfd_dbg_trap_cntl_prev);
719 
720 	data = (trap_mask_bits & trap_mask_request) | (*trap_mask_prev & ~trap_mask_request);
721 	data = trap_mask_map_sw_to_hw(data);
722 
723 	data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, TRAP_EN, 1);
724 	data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, EXCP_REPLACE, trap_override);
725 
726 	return data;
727 }
728 
kgd_gfx_v11_set_wave_launch_mode(struct amdgpu_device * adev,uint8_t wave_launch_mode,uint32_t vmid)729 static uint32_t kgd_gfx_v11_set_wave_launch_mode(struct amdgpu_device *adev,
730 					uint8_t wave_launch_mode,
731 					uint32_t vmid)
732 {
733 	uint32_t data = 0;
734 
735 	data = REG_SET_FIELD(data, SPI_GDBG_PER_VMID_CNTL, LAUNCH_MODE, wave_launch_mode);
736 
737 	return data;
738 }
739 
740 #define TCP_WATCH_STRIDE (regTCP_WATCH1_ADDR_H - regTCP_WATCH0_ADDR_H)
kgd_gfx_v11_set_address_watch(struct amdgpu_device * adev,uint64_t watch_address,uint32_t watch_address_mask,uint32_t watch_id,uint32_t watch_mode,uint32_t debug_vmid,uint32_t inst)741 static uint32_t kgd_gfx_v11_set_address_watch(struct amdgpu_device *adev,
742 					uint64_t watch_address,
743 					uint32_t watch_address_mask,
744 					uint32_t watch_id,
745 					uint32_t watch_mode,
746 					uint32_t debug_vmid,
747 					uint32_t inst)
748 {
749 	uint32_t watch_address_high;
750 	uint32_t watch_address_low;
751 	uint32_t watch_address_cntl;
752 
753 	watch_address_cntl = 0;
754 	watch_address_low = lower_32_bits(watch_address);
755 	watch_address_high = upper_32_bits(watch_address) & 0xffff;
756 
757 	watch_address_cntl = REG_SET_FIELD(watch_address_cntl,
758 			TCP_WATCH0_CNTL,
759 			MODE,
760 			watch_mode);
761 
762 	watch_address_cntl = REG_SET_FIELD(watch_address_cntl,
763 			TCP_WATCH0_CNTL,
764 			MASK,
765 			watch_address_mask >> 7);
766 
767 	watch_address_cntl = REG_SET_FIELD(watch_address_cntl,
768 			TCP_WATCH0_CNTL,
769 			VALID,
770 			1);
771 
772 	WREG32_RLC((SOC15_REG_OFFSET(GC, 0, regTCP_WATCH0_ADDR_H) +
773 			(watch_id * TCP_WATCH_STRIDE)),
774 			watch_address_high);
775 
776 	WREG32_RLC((SOC15_REG_OFFSET(GC, 0, regTCP_WATCH0_ADDR_L) +
777 			(watch_id * TCP_WATCH_STRIDE)),
778 			watch_address_low);
779 
780 	return watch_address_cntl;
781 }
782 
kgd_gfx_v11_clear_address_watch(struct amdgpu_device * adev,uint32_t watch_id)783 static uint32_t kgd_gfx_v11_clear_address_watch(struct amdgpu_device *adev,
784 						uint32_t watch_id)
785 {
786 	return 0;
787 }
788 
789 const struct kfd2kgd_calls gfx_v11_kfd2kgd = {
790 	.program_sh_mem_settings = program_sh_mem_settings_v11,
791 	.set_pasid_vmid_mapping = set_pasid_vmid_mapping_v11,
792 	.init_interrupts = init_interrupts_v11,
793 	.hqd_load = hqd_load_v11,
794 	.hiq_mqd_load = hiq_mqd_load_v11,
795 	.hqd_sdma_load = hqd_sdma_load_v11,
796 	.hqd_dump = hqd_dump_v11,
797 	.hqd_sdma_dump = hqd_sdma_dump_v11,
798 	.hqd_is_occupied = hqd_is_occupied_v11,
799 	.hqd_sdma_is_occupied = hqd_sdma_is_occupied_v11,
800 	.hqd_destroy = hqd_destroy_v11,
801 	.hqd_sdma_destroy = hqd_sdma_destroy_v11,
802 	.wave_control_execute = wave_control_execute_v11,
803 	.get_atc_vmid_pasid_mapping_info = NULL,
804 	.set_vm_context_page_table_base = set_vm_context_page_table_base_v11,
805 	.enable_debug_trap = kgd_gfx_v11_enable_debug_trap,
806 	.disable_debug_trap = kgd_gfx_v11_disable_debug_trap,
807 	.validate_trap_override_request = kgd_gfx_v11_validate_trap_override_request,
808 	.set_wave_launch_trap_override = kgd_gfx_v11_set_wave_launch_trap_override,
809 	.set_wave_launch_mode = kgd_gfx_v11_set_wave_launch_mode,
810 	.set_address_watch = kgd_gfx_v11_set_address_watch,
811 	.clear_address_watch = kgd_gfx_v11_clear_address_watch
812 };
813