1 /*
2 * Copyright 2019 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/module.h>
23 #include <linux/fdtable.h>
24 #include <linux/uaccess.h>
25 #include <linux/firmware.h>
26 #include "amdgpu.h"
27 #include "amdgpu_amdkfd.h"
28 #include "sdma0/sdma0_4_2_2_offset.h"
29 #include "sdma0/sdma0_4_2_2_sh_mask.h"
30 #include "sdma1/sdma1_4_2_2_offset.h"
31 #include "sdma1/sdma1_4_2_2_sh_mask.h"
32 #include "sdma2/sdma2_4_2_2_offset.h"
33 #include "sdma2/sdma2_4_2_2_sh_mask.h"
34 #include "sdma3/sdma3_4_2_2_offset.h"
35 #include "sdma3/sdma3_4_2_2_sh_mask.h"
36 #include "sdma4/sdma4_4_2_2_offset.h"
37 #include "sdma4/sdma4_4_2_2_sh_mask.h"
38 #include "sdma5/sdma5_4_2_2_offset.h"
39 #include "sdma5/sdma5_4_2_2_sh_mask.h"
40 #include "sdma6/sdma6_4_2_2_offset.h"
41 #include "sdma6/sdma6_4_2_2_sh_mask.h"
42 #include "sdma7/sdma7_4_2_2_offset.h"
43 #include "sdma7/sdma7_4_2_2_sh_mask.h"
44 #include "v9_structs.h"
45 #include "soc15.h"
46 #include "soc15d.h"
47 #include "amdgpu_amdkfd_gfx_v9.h"
48 #include "gfxhub_v1_0.h"
49 #include "mmhub_v9_4.h"
50
51 #define HQD_N_REGS 56
52 #define DUMP_REG(addr) do { \
53 if (WARN_ON_ONCE(i >= HQD_N_REGS)) \
54 break; \
55 (*dump)[i][0] = (addr) << 2; \
56 (*dump)[i++][1] = RREG32(addr); \
57 } while (0)
58
get_amdgpu_device(struct kgd_dev * kgd)59 static inline struct amdgpu_device *get_amdgpu_device(struct kgd_dev *kgd)
60 {
61 return (struct amdgpu_device *)kgd;
62 }
63
get_sdma_mqd(void * mqd)64 static inline struct v9_sdma_mqd *get_sdma_mqd(void *mqd)
65 {
66 return (struct v9_sdma_mqd *)mqd;
67 }
68
get_sdma_rlc_reg_offset(struct amdgpu_device * adev,unsigned int engine_id,unsigned int queue_id)69 static uint32_t get_sdma_rlc_reg_offset(struct amdgpu_device *adev,
70 unsigned int engine_id,
71 unsigned int queue_id)
72 {
73 uint32_t sdma_engine_reg_base = 0;
74 uint32_t sdma_rlc_reg_offset;
75
76 switch (engine_id) {
77 default:
78 dev_warn(adev->dev,
79 "Invalid sdma engine id (%d), using engine id 0\n",
80 engine_id);
81 fallthrough;
82 case 0:
83 sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA0, 0,
84 mmSDMA0_RLC0_RB_CNTL) - mmSDMA0_RLC0_RB_CNTL;
85 break;
86 case 1:
87 sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA1, 0,
88 mmSDMA1_RLC0_RB_CNTL) - mmSDMA1_RLC0_RB_CNTL;
89 break;
90 case 2:
91 sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA2, 0,
92 mmSDMA2_RLC0_RB_CNTL) - mmSDMA2_RLC0_RB_CNTL;
93 break;
94 case 3:
95 sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA3, 0,
96 mmSDMA3_RLC0_RB_CNTL) - mmSDMA3_RLC0_RB_CNTL;
97 break;
98 case 4:
99 sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA4, 0,
100 mmSDMA4_RLC0_RB_CNTL) - mmSDMA4_RLC0_RB_CNTL;
101 break;
102 case 5:
103 sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA5, 0,
104 mmSDMA5_RLC0_RB_CNTL) - mmSDMA5_RLC0_RB_CNTL;
105 break;
106 case 6:
107 sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA6, 0,
108 mmSDMA6_RLC0_RB_CNTL) - mmSDMA6_RLC0_RB_CNTL;
109 break;
110 case 7:
111 sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA7, 0,
112 mmSDMA7_RLC0_RB_CNTL) - mmSDMA7_RLC0_RB_CNTL;
113 break;
114 }
115
116 sdma_rlc_reg_offset = sdma_engine_reg_base
117 + queue_id * (mmSDMA0_RLC1_RB_CNTL - mmSDMA0_RLC0_RB_CNTL);
118
119 pr_debug("RLC register offset for SDMA%d RLC%d: 0x%x\n", engine_id,
120 queue_id, sdma_rlc_reg_offset);
121
122 return sdma_rlc_reg_offset;
123 }
124
kgd_hqd_sdma_load(struct kgd_dev * kgd,void * mqd,uint32_t __user * wptr,struct mm_struct * mm)125 static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd,
126 uint32_t __user *wptr, struct mm_struct *mm)
127 {
128 struct amdgpu_device *adev = get_amdgpu_device(kgd);
129 struct v9_sdma_mqd *m;
130 uint32_t sdma_rlc_reg_offset;
131 unsigned long end_jiffies;
132 uint32_t data;
133 uint64_t data64;
134 uint64_t __user *wptr64 = (uint64_t __user *)wptr;
135
136 m = get_sdma_mqd(mqd);
137 sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, m->sdma_engine_id,
138 m->sdma_queue_id);
139
140 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL,
141 m->sdmax_rlcx_rb_cntl & (~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK));
142
143 end_jiffies = msecs_to_jiffies(2000) + jiffies;
144 while (true) {
145 data = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_CONTEXT_STATUS);
146 if (data & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
147 break;
148 if (time_after(jiffies, end_jiffies)) {
149 pr_err("SDMA RLC not idle in %s\n", __func__);
150 return -ETIME;
151 }
152 usleep_range(500, 1000);
153 }
154
155 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL_OFFSET,
156 m->sdmax_rlcx_doorbell_offset);
157
158 data = REG_SET_FIELD(m->sdmax_rlcx_doorbell, SDMA0_RLC0_DOORBELL,
159 ENABLE, 1);
160 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL, data);
161 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR,
162 m->sdmax_rlcx_rb_rptr);
163 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_HI,
164 m->sdmax_rlcx_rb_rptr_hi);
165
166 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_MINOR_PTR_UPDATE, 1);
167 if (read_user_wptr(mm, wptr64, data64)) {
168 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR,
169 lower_32_bits(data64));
170 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR_HI,
171 upper_32_bits(data64));
172 } else {
173 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR,
174 m->sdmax_rlcx_rb_rptr);
175 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR_HI,
176 m->sdmax_rlcx_rb_rptr_hi);
177 }
178 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_MINOR_PTR_UPDATE, 0);
179
180 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_BASE, m->sdmax_rlcx_rb_base);
181 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_BASE_HI,
182 m->sdmax_rlcx_rb_base_hi);
183 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_ADDR_LO,
184 m->sdmax_rlcx_rb_rptr_addr_lo);
185 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_ADDR_HI,
186 m->sdmax_rlcx_rb_rptr_addr_hi);
187
188 data = REG_SET_FIELD(m->sdmax_rlcx_rb_cntl, SDMA0_RLC0_RB_CNTL,
189 RB_ENABLE, 1);
190 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, data);
191
192 return 0;
193 }
194
kgd_hqd_sdma_dump(struct kgd_dev * kgd,uint32_t engine_id,uint32_t queue_id,uint32_t (** dump)[2],uint32_t * n_regs)195 static int kgd_hqd_sdma_dump(struct kgd_dev *kgd,
196 uint32_t engine_id, uint32_t queue_id,
197 uint32_t (**dump)[2], uint32_t *n_regs)
198 {
199 struct amdgpu_device *adev = get_amdgpu_device(kgd);
200 uint32_t sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev,
201 engine_id, queue_id);
202 uint32_t i = 0, reg;
203 #undef HQD_N_REGS
204 #define HQD_N_REGS (19+6+7+10)
205
206 *dump = kmalloc_array(HQD_N_REGS * 2, sizeof(uint32_t), GFP_KERNEL);
207 if (*dump == NULL)
208 return -ENOMEM;
209
210 for (reg = mmSDMA0_RLC0_RB_CNTL; reg <= mmSDMA0_RLC0_DOORBELL; reg++)
211 DUMP_REG(sdma_rlc_reg_offset + reg);
212 for (reg = mmSDMA0_RLC0_STATUS; reg <= mmSDMA0_RLC0_CSA_ADDR_HI; reg++)
213 DUMP_REG(sdma_rlc_reg_offset + reg);
214 for (reg = mmSDMA0_RLC0_IB_SUB_REMAIN;
215 reg <= mmSDMA0_RLC0_MINOR_PTR_UPDATE; reg++)
216 DUMP_REG(sdma_rlc_reg_offset + reg);
217 for (reg = mmSDMA0_RLC0_MIDCMD_DATA0;
218 reg <= mmSDMA0_RLC0_MIDCMD_CNTL; reg++)
219 DUMP_REG(sdma_rlc_reg_offset + reg);
220
221 WARN_ON_ONCE(i != HQD_N_REGS);
222 *n_regs = i;
223
224 return 0;
225 }
226
kgd_hqd_sdma_is_occupied(struct kgd_dev * kgd,void * mqd)227 static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd)
228 {
229 struct amdgpu_device *adev = get_amdgpu_device(kgd);
230 struct v9_sdma_mqd *m;
231 uint32_t sdma_rlc_reg_offset;
232 uint32_t sdma_rlc_rb_cntl;
233
234 m = get_sdma_mqd(mqd);
235 sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, m->sdma_engine_id,
236 m->sdma_queue_id);
237
238 sdma_rlc_rb_cntl = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL);
239
240 if (sdma_rlc_rb_cntl & SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK)
241 return true;
242
243 return false;
244 }
245
kgd_hqd_sdma_destroy(struct kgd_dev * kgd,void * mqd,unsigned int utimeout)246 static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd,
247 unsigned int utimeout)
248 {
249 struct amdgpu_device *adev = get_amdgpu_device(kgd);
250 struct v9_sdma_mqd *m;
251 uint32_t sdma_rlc_reg_offset;
252 uint32_t temp;
253 unsigned long end_jiffies = (utimeout * HZ / 1000) + jiffies;
254
255 m = get_sdma_mqd(mqd);
256 sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, m->sdma_engine_id,
257 m->sdma_queue_id);
258
259 temp = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL);
260 temp = temp & ~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK;
261 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, temp);
262
263 while (true) {
264 temp = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_CONTEXT_STATUS);
265 if (temp & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
266 break;
267 if (time_after(jiffies, end_jiffies)) {
268 pr_err("SDMA RLC not idle in %s\n", __func__);
269 return -ETIME;
270 }
271 usleep_range(500, 1000);
272 }
273
274 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL, 0);
275 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL,
276 RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL) |
277 SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK);
278
279 m->sdmax_rlcx_rb_rptr = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR);
280 m->sdmax_rlcx_rb_rptr_hi =
281 RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_HI);
282
283 return 0;
284 }
285
286 const struct kfd2kgd_calls arcturus_kfd2kgd = {
287 .program_sh_mem_settings = kgd_gfx_v9_program_sh_mem_settings,
288 .set_pasid_vmid_mapping = kgd_gfx_v9_set_pasid_vmid_mapping,
289 .init_interrupts = kgd_gfx_v9_init_interrupts,
290 .hqd_load = kgd_gfx_v9_hqd_load,
291 .hiq_mqd_load = kgd_gfx_v9_hiq_mqd_load,
292 .hqd_sdma_load = kgd_hqd_sdma_load,
293 .hqd_dump = kgd_gfx_v9_hqd_dump,
294 .hqd_sdma_dump = kgd_hqd_sdma_dump,
295 .hqd_is_occupied = kgd_gfx_v9_hqd_is_occupied,
296 .hqd_sdma_is_occupied = kgd_hqd_sdma_is_occupied,
297 .hqd_destroy = kgd_gfx_v9_hqd_destroy,
298 .hqd_sdma_destroy = kgd_hqd_sdma_destroy,
299 .address_watch_disable = kgd_gfx_v9_address_watch_disable,
300 .address_watch_execute = kgd_gfx_v9_address_watch_execute,
301 .wave_control_execute = kgd_gfx_v9_wave_control_execute,
302 .address_watch_get_offset = kgd_gfx_v9_address_watch_get_offset,
303 .get_atc_vmid_pasid_mapping_info =
304 kgd_gfx_v9_get_atc_vmid_pasid_mapping_info,
305 .set_vm_context_page_table_base =
306 kgd_gfx_v9_set_vm_context_page_table_base,
307 };
308