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e28740ec OG |
1 | /* |
2 | * Copyright 2014 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 | * This file defines the private interface between the | |
25 | * AMD kernel graphics drivers and the AMD KFD. | |
26 | */ | |
27 | ||
28 | #ifndef KGD_KFD_INTERFACE_H_INCLUDED | |
29 | #define KGD_KFD_INTERFACE_H_INCLUDED | |
30 | ||
31 | #include <linux/types.h> | |
d0b63bb3 | 32 | #include <linux/bitmap.h> |
e28740ec OG |
33 | |
34 | struct pci_dev; | |
35 | ||
d0b63bb3 | 36 | #define KFD_INTERFACE_VERSION 2 |
78c16834 | 37 | #define KGD_MAX_QUEUES 128 |
e28740ec OG |
38 | |
39 | struct kfd_dev; | |
40 | struct kgd_dev; | |
41 | ||
42 | struct kgd_mem; | |
43 | ||
44 | enum kgd_memory_pool { | |
45 | KGD_POOL_SYSTEM_CACHEABLE = 1, | |
46 | KGD_POOL_SYSTEM_WRITECOMBINE = 2, | |
47 | KGD_POOL_FRAMEBUFFER = 3, | |
48 | }; | |
49 | ||
61466c65 OG |
50 | enum kgd_engine_type { |
51 | KGD_ENGINE_PFP = 1, | |
52 | KGD_ENGINE_ME, | |
53 | KGD_ENGINE_CE, | |
54 | KGD_ENGINE_MEC1, | |
55 | KGD_ENGINE_MEC2, | |
56 | KGD_ENGINE_RLC, | |
22801f76 OG |
57 | KGD_ENGINE_SDMA1, |
58 | KGD_ENGINE_SDMA2, | |
61466c65 OG |
59 | KGD_ENGINE_MAX |
60 | }; | |
61 | ||
e28740ec OG |
62 | struct kgd2kfd_shared_resources { |
63 | /* Bit n == 1 means VMID n is available for KFD. */ | |
64 | unsigned int compute_vmid_bitmap; | |
65 | ||
d0b63bb3 AR |
66 | /* number of mec available from the hardware */ |
67 | uint32_t num_mec; | |
e28740ec | 68 | |
d0b63bb3 AR |
69 | /* number of pipes per mec */ |
70 | uint32_t num_pipe_per_mec; | |
71 | ||
72 | /* number of queues per pipe */ | |
73 | uint32_t num_queue_per_pipe; | |
74 | ||
75 | /* Bit n == 1 means Queue n is available for KFD */ | |
76 | DECLARE_BITMAP(queue_bitmap, KGD_MAX_QUEUES); | |
e28740ec OG |
77 | |
78 | /* Base address of doorbell aperture. */ | |
79 | phys_addr_t doorbell_physical_address; | |
80 | ||
81 | /* Size in bytes of doorbell aperture. */ | |
82 | size_t doorbell_aperture_size; | |
83 | ||
84 | /* Number of bytes at start of aperture reserved for KGD. */ | |
85 | size_t doorbell_start_offset; | |
86 | }; | |
87 | ||
e28740ec OG |
88 | /** |
89 | * struct kfd2kgd_calls | |
90 | * | |
e27ade73 OG |
91 | * @init_gtt_mem_allocation: Allocate a buffer on the gart aperture. |
92 | * The buffer can be used for mqds, hpds, kernel queue, fence and runlists | |
93 | * | |
94 | * @free_gtt_mem: Frees a buffer that was allocated on the gart aperture | |
95 | * | |
e28740ec OG |
96 | * @get_vmem_size: Retrieves (physical) size of VRAM |
97 | * | |
98 | * @get_gpu_clock_counter: Retrieves GPU clock counter | |
99 | * | |
100 | * @get_max_engine_clock_in_mhz: Retrieves maximum GPU clock in MHz | |
101 | * | |
102 | * @program_sh_mem_settings: A function that should initiate the memory | |
103 | * properties such as main aperture memory type (cache / non cached) and | |
104 | * secondary aperture base address, size and memory type. | |
105 | * This function is used only for no cp scheduling mode. | |
106 | * | |
107 | * @set_pasid_vmid_mapping: Exposes pasid/vmid pair to the H/W for no cp | |
108 | * scheduling mode. Only used for no cp scheduling mode. | |
109 | * | |
e28740ec OG |
110 | * @init_pipeline: Initialized the compute pipelines. |
111 | * | |
112 | * @hqd_load: Loads the mqd structure to a H/W hqd slot. used only for no cp | |
113 | * sceduling mode. | |
114 | * | |
85ea7d07 BG |
115 | * @hqd_sdma_load: Loads the SDMA mqd structure to a H/W SDMA hqd slot. |
116 | * used only for no HWS mode. | |
117 | * | |
e28740ec OG |
118 | * @hqd_is_occupies: Checks if a hqd slot is occupied. |
119 | * | |
120 | * @hqd_destroy: Destructs and preempts the queue assigned to that hqd slot. | |
121 | * | |
85ea7d07 BG |
122 | * @hqd_sdma_is_occupied: Checks if an SDMA hqd slot is occupied. |
123 | * | |
124 | * @hqd_sdma_destroy: Destructs and preempts the SDMA queue assigned to that | |
125 | * SDMA hqd slot. | |
126 | * | |
61466c65 OG |
127 | * @get_fw_version: Returns FW versions from the header |
128 | * | |
e28740ec OG |
129 | * This structure contains function pointers to services that the kgd driver |
130 | * provides to amdkfd driver. | |
131 | * | |
132 | */ | |
133 | struct kfd2kgd_calls { | |
e27ade73 OG |
134 | int (*init_gtt_mem_allocation)(struct kgd_dev *kgd, size_t size, |
135 | void **mem_obj, uint64_t *gpu_addr, | |
136 | void **cpu_ptr); | |
e28740ec | 137 | |
e27ade73 | 138 | void (*free_gtt_mem)(struct kgd_dev *kgd, void *mem_obj); |
e28740ec OG |
139 | |
140 | uint64_t (*get_vmem_size)(struct kgd_dev *kgd); | |
141 | uint64_t (*get_gpu_clock_counter)(struct kgd_dev *kgd); | |
142 | ||
143 | uint32_t (*get_max_engine_clock_in_mhz)(struct kgd_dev *kgd); | |
144 | ||
145 | /* Register access functions */ | |
146 | void (*program_sh_mem_settings)(struct kgd_dev *kgd, uint32_t vmid, | |
147 | uint32_t sh_mem_config, uint32_t sh_mem_ape1_base, | |
148 | uint32_t sh_mem_ape1_limit, uint32_t sh_mem_bases); | |
149 | ||
150 | int (*set_pasid_vmid_mapping)(struct kgd_dev *kgd, unsigned int pasid, | |
151 | unsigned int vmid); | |
152 | ||
e28740ec OG |
153 | int (*init_pipeline)(struct kgd_dev *kgd, uint32_t pipe_id, |
154 | uint32_t hpd_size, uint64_t hpd_gpu_addr); | |
155 | ||
d36b94fc OG |
156 | int (*init_interrupts)(struct kgd_dev *kgd, uint32_t pipe_id); |
157 | ||
e28740ec OG |
158 | int (*hqd_load)(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id, |
159 | uint32_t queue_id, uint32_t __user *wptr); | |
160 | ||
85ea7d07 BG |
161 | int (*hqd_sdma_load)(struct kgd_dev *kgd, void *mqd); |
162 | ||
b64b8afc | 163 | bool (*hqd_is_occupied)(struct kgd_dev *kgd, uint64_t queue_address, |
e28740ec OG |
164 | uint32_t pipe_id, uint32_t queue_id); |
165 | ||
166 | int (*hqd_destroy)(struct kgd_dev *kgd, uint32_t reset_type, | |
167 | unsigned int timeout, uint32_t pipe_id, | |
168 | uint32_t queue_id); | |
85ea7d07 BG |
169 | |
170 | bool (*hqd_sdma_is_occupied)(struct kgd_dev *kgd, void *mqd); | |
171 | ||
172 | int (*hqd_sdma_destroy)(struct kgd_dev *kgd, void *mqd, | |
173 | unsigned int timeout); | |
174 | ||
a6186f4d YS |
175 | int (*address_watch_disable)(struct kgd_dev *kgd); |
176 | int (*address_watch_execute)(struct kgd_dev *kgd, | |
177 | unsigned int watch_point_id, | |
178 | uint32_t cntl_val, | |
179 | uint32_t addr_hi, | |
180 | uint32_t addr_lo); | |
181 | int (*wave_control_execute)(struct kgd_dev *kgd, | |
182 | uint32_t gfx_index_val, | |
183 | uint32_t sq_cmd); | |
184 | uint32_t (*address_watch_get_offset)(struct kgd_dev *kgd, | |
185 | unsigned int watch_point_id, | |
186 | unsigned int reg_offset); | |
edad4023 AS |
187 | bool (*get_atc_vmid_pasid_mapping_valid)( |
188 | struct kgd_dev *kgd, | |
189 | uint8_t vmid); | |
190 | uint16_t (*get_atc_vmid_pasid_mapping_pasid)( | |
191 | struct kgd_dev *kgd, | |
192 | uint8_t vmid); | |
193 | void (*write_vmid_invalidate_request)(struct kgd_dev *kgd, | |
194 | uint8_t vmid); | |
a6186f4d | 195 | |
61466c65 OG |
196 | uint16_t (*get_fw_version)(struct kgd_dev *kgd, |
197 | enum kgd_engine_type type); | |
e28740ec OG |
198 | }; |
199 | ||
cea405b1 XZ |
200 | /** |
201 | * struct kgd2kfd_calls | |
202 | * | |
203 | * @exit: Notifies amdkfd that kgd module is unloaded | |
204 | * | |
205 | * @probe: Notifies amdkfd about a probe done on a device in the kgd driver. | |
206 | * | |
207 | * @device_init: Initialize the newly probed device (if it is a device that | |
208 | * amdkfd supports) | |
209 | * | |
210 | * @device_exit: Notifies amdkfd about a removal of a kgd device | |
211 | * | |
212 | * @suspend: Notifies amdkfd about a suspend action done to a kgd device | |
213 | * | |
214 | * @resume: Notifies amdkfd about a resume action done to a kgd device | |
215 | * | |
216 | * This structure contains function callback pointers so the kgd driver | |
217 | * will notify to the amdkfd about certain status changes. | |
218 | * | |
219 | */ | |
220 | struct kgd2kfd_calls { | |
221 | void (*exit)(void); | |
222 | struct kfd_dev* (*probe)(struct kgd_dev *kgd, struct pci_dev *pdev, | |
223 | const struct kfd2kgd_calls *f2g); | |
224 | bool (*device_init)(struct kfd_dev *kfd, | |
225 | const struct kgd2kfd_shared_resources *gpu_resources); | |
226 | void (*device_exit)(struct kfd_dev *kfd); | |
227 | void (*interrupt)(struct kfd_dev *kfd, const void *ih_ring_entry); | |
228 | void (*suspend)(struct kfd_dev *kfd); | |
229 | int (*resume)(struct kfd_dev *kfd); | |
230 | }; | |
231 | ||
c68f4528 | 232 | int kgd2kfd_init(unsigned interface_version, |
85ea7d07 | 233 | const struct kgd2kfd_calls **g2f); |
e28740ec | 234 | |
85ea7d07 | 235 | #endif /* KGD_KFD_INTERFACE_H_INCLUDED */ |