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1 | /* |
2 | * Copyright 2018 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 | */ | |
23 | ||
24 | /* | |
25 | * GPU doorbell structures, functions & helpers | |
26 | */ | |
27 | struct amdgpu_doorbell { | |
28 | /* doorbell mmio */ | |
29 | resource_size_t base; | |
30 | resource_size_t size; | |
31 | u32 __iomem *ptr; | |
32 | u32 num_doorbells; /* Number of doorbells actually reserved for amdgpu. */ | |
33 | }; | |
34 | ||
35 | /* Reserved doorbells for amdgpu (including multimedia). | |
36 | * KFD can use all the rest in the 2M doorbell bar. | |
37 | * For asic before vega10, doorbell is 32-bit, so the | |
38 | * index/offset is in dword. For vega10 and after, doorbell | |
39 | * can be 64-bit, so the index defined is in qword. | |
40 | */ | |
41 | struct amdgpu_doorbell_index { | |
42 | uint32_t kiq; | |
43 | uint32_t mec_ring0; | |
44 | uint32_t mec_ring1; | |
45 | uint32_t mec_ring2; | |
46 | uint32_t mec_ring3; | |
47 | uint32_t mec_ring4; | |
48 | uint32_t mec_ring5; | |
49 | uint32_t mec_ring6; | |
50 | uint32_t mec_ring7; | |
51 | uint32_t userqueue_start; | |
52 | uint32_t userqueue_end; | |
53 | uint32_t gfx_ring0; | |
54 | uint32_t sdma_engine0; | |
55 | uint32_t sdma_engine1; | |
56 | uint32_t sdma_engine2; | |
57 | uint32_t sdma_engine3; | |
58 | uint32_t sdma_engine4; | |
59 | uint32_t sdma_engine5; | |
60 | uint32_t sdma_engine6; | |
61 | uint32_t sdma_engine7; | |
62 | uint32_t ih; | |
63 | union { | |
64 | struct { | |
65 | uint32_t vcn_ring0_1; | |
66 | uint32_t vcn_ring2_3; | |
67 | uint32_t vcn_ring4_5; | |
68 | uint32_t vcn_ring6_7; | |
69 | } vcn; | |
70 | struct { | |
71 | uint32_t uvd_ring0_1; | |
72 | uint32_t uvd_ring2_3; | |
73 | uint32_t uvd_ring4_5; | |
74 | uint32_t uvd_ring6_7; | |
75 | uint32_t vce_ring0_1; | |
76 | uint32_t vce_ring2_3; | |
77 | uint32_t vce_ring4_5; | |
78 | uint32_t vce_ring6_7; | |
79 | } uvd_vce; | |
80 | }; | |
81 | uint32_t max_assignment; | |
82 | }; | |
83 | ||
84 | typedef enum _AMDGPU_DOORBELL_ASSIGNMENT | |
85 | { | |
86 | AMDGPU_DOORBELL_KIQ = 0x000, | |
87 | AMDGPU_DOORBELL_HIQ = 0x001, | |
88 | AMDGPU_DOORBELL_DIQ = 0x002, | |
89 | AMDGPU_DOORBELL_MEC_RING0 = 0x010, | |
90 | AMDGPU_DOORBELL_MEC_RING1 = 0x011, | |
91 | AMDGPU_DOORBELL_MEC_RING2 = 0x012, | |
92 | AMDGPU_DOORBELL_MEC_RING3 = 0x013, | |
93 | AMDGPU_DOORBELL_MEC_RING4 = 0x014, | |
94 | AMDGPU_DOORBELL_MEC_RING5 = 0x015, | |
95 | AMDGPU_DOORBELL_MEC_RING6 = 0x016, | |
96 | AMDGPU_DOORBELL_MEC_RING7 = 0x017, | |
97 | AMDGPU_DOORBELL_GFX_RING0 = 0x020, | |
98 | AMDGPU_DOORBELL_sDMA_ENGINE0 = 0x1E0, | |
99 | AMDGPU_DOORBELL_sDMA_ENGINE1 = 0x1E1, | |
100 | AMDGPU_DOORBELL_IH = 0x1E8, | |
101 | AMDGPU_DOORBELL_MAX_ASSIGNMENT = 0x3FF, | |
102 | AMDGPU_DOORBELL_INVALID = 0xFFFF | |
103 | } AMDGPU_DOORBELL_ASSIGNMENT; | |
104 | ||
105 | typedef enum _AMDGPU_VEGA20_DOORBELL_ASSIGNMENT | |
106 | { | |
107 | /* Compute + GFX: 0~255 */ | |
108 | AMDGPU_VEGA20_DOORBELL_KIQ = 0x000, | |
109 | AMDGPU_VEGA20_DOORBELL_HIQ = 0x001, | |
110 | AMDGPU_VEGA20_DOORBELL_DIQ = 0x002, | |
111 | AMDGPU_VEGA20_DOORBELL_MEC_RING0 = 0x003, | |
112 | AMDGPU_VEGA20_DOORBELL_MEC_RING1 = 0x004, | |
113 | AMDGPU_VEGA20_DOORBELL_MEC_RING2 = 0x005, | |
114 | AMDGPU_VEGA20_DOORBELL_MEC_RING3 = 0x006, | |
115 | AMDGPU_VEGA20_DOORBELL_MEC_RING4 = 0x007, | |
116 | AMDGPU_VEGA20_DOORBELL_MEC_RING5 = 0x008, | |
117 | AMDGPU_VEGA20_DOORBELL_MEC_RING6 = 0x009, | |
118 | AMDGPU_VEGA20_DOORBELL_MEC_RING7 = 0x00A, | |
119 | AMDGPU_VEGA20_DOORBELL_USERQUEUE_START = 0x00B, | |
120 | AMDGPU_VEGA20_DOORBELL_USERQUEUE_END = 0x08A, | |
121 | AMDGPU_VEGA20_DOORBELL_GFX_RING0 = 0x08B, | |
122 | /* SDMA:256~335*/ | |
123 | AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE0 = 0x100, | |
124 | AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE1 = 0x10A, | |
125 | AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE2 = 0x114, | |
126 | AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE3 = 0x11E, | |
127 | AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE4 = 0x128, | |
128 | AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE5 = 0x132, | |
129 | AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE6 = 0x13C, | |
130 | AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE7 = 0x146, | |
131 | /* IH: 376~391 */ | |
132 | AMDGPU_VEGA20_DOORBELL_IH = 0x178, | |
133 | /* MMSCH: 392~407 | |
134 | * overlap the doorbell assignment with VCN as they are mutually exclusive | |
135 | * VCE engine's doorbell is 32 bit and two VCE ring share one QWORD | |
136 | */ | |
137 | AMDGPU_VEGA20_DOORBELL64_VCN0_1 = 0x188, /* lower 32 bits for VNC0 and upper 32 bits for VNC1 */ | |
138 | AMDGPU_VEGA20_DOORBELL64_VCN2_3 = 0x189, | |
139 | AMDGPU_VEGA20_DOORBELL64_VCN4_5 = 0x18A, | |
140 | AMDGPU_VEGA20_DOORBELL64_VCN6_7 = 0x18B, | |
141 | ||
142 | AMDGPU_VEGA20_DOORBELL64_UVD_RING0_1 = 0x188, | |
143 | AMDGPU_VEGA20_DOORBELL64_UVD_RING2_3 = 0x189, | |
144 | AMDGPU_VEGA20_DOORBELL64_UVD_RING4_5 = 0x18A, | |
145 | AMDGPU_VEGA20_DOORBELL64_UVD_RING6_7 = 0x18B, | |
146 | ||
147 | AMDGPU_VEGA20_DOORBELL64_VCE_RING0_1 = 0x18C, | |
148 | AMDGPU_VEGA20_DOORBELL64_VCE_RING2_3 = 0x18D, | |
149 | AMDGPU_VEGA20_DOORBELL64_VCE_RING4_5 = 0x18E, | |
150 | AMDGPU_VEGA20_DOORBELL64_VCE_RING6_7 = 0x18F, | |
151 | AMDGPU_VEGA20_DOORBELL_MAX_ASSIGNMENT = 0x18F, | |
152 | AMDGPU_VEGA20_DOORBELL_INVALID = 0xFFFF | |
153 | } AMDGPU_VEGA20_DOORBELL_ASSIGNMENT; | |
154 | ||
155 | /* | |
156 | * 64bit doorbell, offset are in QWORD, occupy 2KB doorbell space | |
157 | */ | |
158 | typedef enum _AMDGPU_DOORBELL64_ASSIGNMENT | |
159 | { | |
160 | /* | |
161 | * All compute related doorbells: kiq, hiq, diq, traditional compute queue, user queue, should locate in | |
162 | * a continues range so that programming CP_MEC_DOORBELL_RANGE_LOWER/UPPER can cover this range. | |
163 | * Compute related doorbells are allocated from 0x00 to 0x8a | |
164 | */ | |
165 | ||
166 | ||
167 | /* kernel scheduling */ | |
168 | AMDGPU_DOORBELL64_KIQ = 0x00, | |
169 | ||
170 | /* HSA interface queue and debug queue */ | |
171 | AMDGPU_DOORBELL64_HIQ = 0x01, | |
172 | AMDGPU_DOORBELL64_DIQ = 0x02, | |
173 | ||
174 | /* Compute engines */ | |
175 | AMDGPU_DOORBELL64_MEC_RING0 = 0x03, | |
176 | AMDGPU_DOORBELL64_MEC_RING1 = 0x04, | |
177 | AMDGPU_DOORBELL64_MEC_RING2 = 0x05, | |
178 | AMDGPU_DOORBELL64_MEC_RING3 = 0x06, | |
179 | AMDGPU_DOORBELL64_MEC_RING4 = 0x07, | |
180 | AMDGPU_DOORBELL64_MEC_RING5 = 0x08, | |
181 | AMDGPU_DOORBELL64_MEC_RING6 = 0x09, | |
182 | AMDGPU_DOORBELL64_MEC_RING7 = 0x0a, | |
183 | ||
184 | /* User queue doorbell range (128 doorbells) */ | |
185 | AMDGPU_DOORBELL64_USERQUEUE_START = 0x0b, | |
186 | AMDGPU_DOORBELL64_USERQUEUE_END = 0x8a, | |
187 | ||
188 | /* Graphics engine */ | |
189 | AMDGPU_DOORBELL64_GFX_RING0 = 0x8b, | |
190 | ||
191 | /* | |
192 | * Other graphics doorbells can be allocated here: from 0x8c to 0xdf | |
193 | * Graphics voltage island aperture 1 | |
194 | * default non-graphics QWORD index is 0xe0 - 0xFF inclusive | |
195 | */ | |
196 | ||
197 | /* For vega10 sriov, the sdma doorbell must be fixed as follow | |
198 | * to keep the same setting with host driver, or it will | |
199 | * happen conflicts | |
200 | */ | |
201 | AMDGPU_DOORBELL64_sDMA_ENGINE0 = 0xF0, | |
202 | AMDGPU_DOORBELL64_sDMA_HI_PRI_ENGINE0 = 0xF1, | |
203 | AMDGPU_DOORBELL64_sDMA_ENGINE1 = 0xF2, | |
204 | AMDGPU_DOORBELL64_sDMA_HI_PRI_ENGINE1 = 0xF3, | |
205 | ||
206 | /* Interrupt handler */ | |
207 | AMDGPU_DOORBELL64_IH = 0xF4, /* For legacy interrupt ring buffer */ | |
208 | AMDGPU_DOORBELL64_IH_RING1 = 0xF5, /* For page migration request log */ | |
209 | AMDGPU_DOORBELL64_IH_RING2 = 0xF6, /* For page migration translation/invalidation log */ | |
210 | ||
211 | /* VCN engine use 32 bits doorbell */ | |
212 | AMDGPU_DOORBELL64_VCN0_1 = 0xF8, /* lower 32 bits for VNC0 and upper 32 bits for VNC1 */ | |
213 | AMDGPU_DOORBELL64_VCN2_3 = 0xF9, | |
214 | AMDGPU_DOORBELL64_VCN4_5 = 0xFA, | |
215 | AMDGPU_DOORBELL64_VCN6_7 = 0xFB, | |
216 | ||
217 | /* overlap the doorbell assignment with VCN as they are mutually exclusive | |
218 | * VCE engine's doorbell is 32 bit and two VCE ring share one QWORD | |
219 | */ | |
220 | AMDGPU_DOORBELL64_UVD_RING0_1 = 0xF8, | |
221 | AMDGPU_DOORBELL64_UVD_RING2_3 = 0xF9, | |
222 | AMDGPU_DOORBELL64_UVD_RING4_5 = 0xFA, | |
223 | AMDGPU_DOORBELL64_UVD_RING6_7 = 0xFB, | |
224 | ||
225 | AMDGPU_DOORBELL64_VCE_RING0_1 = 0xFC, | |
226 | AMDGPU_DOORBELL64_VCE_RING2_3 = 0xFD, | |
227 | AMDGPU_DOORBELL64_VCE_RING4_5 = 0xFE, | |
228 | AMDGPU_DOORBELL64_VCE_RING6_7 = 0xFF, | |
229 | ||
230 | AMDGPU_DOORBELL64_MAX_ASSIGNMENT = 0xFF, | |
231 | AMDGPU_DOORBELL64_INVALID = 0xFFFF | |
232 | } AMDGPU_DOORBELL64_ASSIGNMENT; | |
233 | ||
234 | u32 amdgpu_mm_rdoorbell(struct amdgpu_device *adev, u32 index); | |
235 | void amdgpu_mm_wdoorbell(struct amdgpu_device *adev, u32 index, u32 v); | |
236 | u64 amdgpu_mm_rdoorbell64(struct amdgpu_device *adev, u32 index); | |
237 | void amdgpu_mm_wdoorbell64(struct amdgpu_device *adev, u32 index, u64 v); | |
238 | ||
239 | #define RDOORBELL32(index) amdgpu_mm_rdoorbell(adev, (index)) | |
240 | #define WDOORBELL32(index, v) amdgpu_mm_wdoorbell(adev, (index), (v)) | |
241 | #define RDOORBELL64(index) amdgpu_mm_rdoorbell64(adev, (index)) | |
242 | #define WDOORBELL64(index, v) amdgpu_mm_wdoorbell64(adev, (index), (v)) | |
243 |