Merge tag 'm68k-for-v6.4-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert...
[linux-block.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_virt.h
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1/*
2 * Copyright 2016 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 * Author: Monk.liu@amd.com
23 */
24#ifndef AMDGPU_VIRT_H
25#define AMDGPU_VIRT_H
26
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27#include "amdgv_sriovmsg.h"
28
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29#define AMDGPU_SRIOV_CAPS_SRIOV_VBIOS (1 << 0) /* vBIOS is sr-iov ready */
30#define AMDGPU_SRIOV_CAPS_ENABLE_IOV (1 << 1) /* sr-iov is enabled on this GPU */
31#define AMDGPU_SRIOV_CAPS_IS_VF (1 << 2) /* this GPU is a virtual function */
32#define AMDGPU_PASSTHROUGH_MODE (1 << 3) /* thw whole GPU is pass through for VM */
5ec9f06e 33#define AMDGPU_SRIOV_CAPS_RUNTIME (1 << 4) /* is out of full access mode */
a7310d8d 34#define AMDGPU_VF_MMIO_ACCESS_PROTECT (1 << 5) /* MMIO write access is not allowed in sriov runtime */
bd7de27d 35
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36/* flags for indirect register access path supported by rlcg for sriov */
37#define AMDGPU_RLCG_GC_WRITE_LEGACY (0x8 << 28)
38#define AMDGPU_RLCG_GC_WRITE (0x0 << 28)
39#define AMDGPU_RLCG_GC_READ (0x1 << 28)
40#define AMDGPU_RLCG_MMHUB_WRITE (0x2 << 28)
41
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42/* error code for indirect register access path supported by rlcg for sriov */
43#define AMDGPU_RLCG_VFGATE_DISABLED 0x4000000
44#define AMDGPU_RLCG_WRONG_OPERATION_TYPE 0x2000000
45#define AMDGPU_RLCG_REG_NOT_IN_RANGE 0x1000000
46
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47#define AMDGPU_RLCG_SCRATCH1_ADDRESS_MASK 0xFFFFF
48
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49/* all asic after AI use this offset */
50#define mmRCC_IOV_FUNC_IDENTIFIER 0xDE5
51/* tonga/fiji use this offset */
52#define mmBIF_IOV_FUNC_IDENTIFIER 0x1503
53
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54enum amdgpu_sriov_vf_mode {
55 SRIOV_VF_MODE_BARE_METAL = 0,
56 SRIOV_VF_MODE_ONE_VF,
57 SRIOV_VF_MODE_MULTI_VF,
58};
59
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60struct amdgpu_mm_table {
61 struct amdgpu_bo *bo;
62 uint32_t *cpu_addr;
63 uint64_t gpu_addr;
64};
65
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66#define AMDGPU_VF_ERROR_ENTRY_SIZE 16
67
68/* struct error_entry - amdgpu VF error information. */
69struct amdgpu_vf_error_buffer {
70 struct mutex lock;
71 int read_count;
72 int write_count;
73 uint16_t code[AMDGPU_VF_ERROR_ENTRY_SIZE];
74 uint16_t flags[AMDGPU_VF_ERROR_ENTRY_SIZE];
75 uint64_t data[AMDGPU_VF_ERROR_ENTRY_SIZE];
76};
77
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78enum idh_request;
79
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80/**
81 * struct amdgpu_virt_ops - amdgpu device virt operations
82 */
83struct amdgpu_virt_ops {
84 int (*req_full_gpu)(struct amdgpu_device *adev, bool init);
85 int (*rel_full_gpu)(struct amdgpu_device *adev, bool init);
aa53bc2e 86 int (*req_init_data)(struct amdgpu_device *adev);
1e9f1392 87 int (*reset_gpu)(struct amdgpu_device *adev);
b636176e 88 int (*wait_reset)(struct amdgpu_device *adev);
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89 void (*trans_msg)(struct amdgpu_device *adev, enum idh_request req,
90 u32 data1, u32 data2, u32 data3);
8ede944d 91 void (*ras_poison_handler)(struct amdgpu_device *adev);
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92};
93
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94/*
95 * Firmware Reserve Frame buffer
96 */
97struct amdgpu_virt_fw_reserve {
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98 struct amd_sriov_msg_pf2vf_info_header *p_pf2vf;
99 struct amd_sriov_msg_vf2pf_info_header *p_vf2pf;
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100 unsigned int checksum_key;
101};
1721bc1b 102
2dc8f81e 103/*
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104 * Legacy GIM header
105 *
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106 * Defination between PF and VF
107 * Structures forcibly aligned to 4 to keep the same style as PF.
108 */
109#define AMDGIM_DATAEXCHANGE_OFFSET (64 * 1024)
110
111#define AMDGIM_GET_STRUCTURE_RESERVED_SIZE(total, u8, u16, u32, u64) \
112 (total - (((u8)+3) / 4 + ((u16)+1) / 2 + (u32) + (u64)*2))
113
114enum AMDGIM_FEATURE_FLAG {
115 /* GIM supports feature of Error log collecting */
116 AMDGIM_FEATURE_ERROR_LOG_COLLECT = 0x1,
117 /* GIM supports feature of loading uCodes */
118 AMDGIM_FEATURE_GIM_LOAD_UCODES = 0x2,
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119 /* VRAM LOST by GIM */
120 AMDGIM_FEATURE_GIM_FLR_VRAMLOST = 0x4,
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121 /* MM bandwidth */
122 AMDGIM_FEATURE_GIM_MM_BW_MGR = 0x8,
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123 /* PP ONE VF MODE in GIM */
124 AMDGIM_FEATURE_PP_ONE_VF = (1 << 4),
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125 /* Indirect Reg Access enabled */
126 AMDGIM_FEATURE_INDIRECT_REG_ACCESS = (1 << 5),
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127 /* AV1 Support MODE*/
128 AMDGIM_FEATURE_AV1_SUPPORT = (1 << 6),
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129};
130
131enum AMDGIM_REG_ACCESS_FLAG {
132 /* Use PSP to program IH_RB_CNTL */
8b8a162d 133 AMDGIM_FEATURE_IH_REG_PSP_EN = (1 << 0),
4d675e1e 134 /* Use RLC to program MMHUB regs */
8b8a162d 135 AMDGIM_FEATURE_MMHUB_REG_RLC_EN = (1 << 1),
4d675e1e 136 /* Use RLC to program GC regs */
8b8a162d 137 AMDGIM_FEATURE_GC_REG_RLC_EN = (1 << 2),
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138};
139
1721bc1b 140struct amdgim_pf2vf_info_v1 {
2dc8f81e 141 /* header contains size and version */
bed1ed36 142 struct amd_sriov_msg_pf2vf_info_header header;
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143 /* max_width * max_height */
144 unsigned int uvd_enc_max_pixels_count;
145 /* 16x16 pixels/sec, codec independent */
146 unsigned int uvd_enc_max_bandwidth;
147 /* max_width * max_height */
148 unsigned int vce_enc_max_pixels_count;
149 /* 16x16 pixels/sec, codec independent */
150 unsigned int vce_enc_max_bandwidth;
151 /* MEC FW position in kb from the start of visible frame buffer */
152 unsigned int mecfw_kboffset;
153 /* The features flags of the GIM driver supports. */
154 unsigned int feature_flags;
155 /* use private key from mailbox 2 to create chueksum */
156 unsigned int checksum;
157} __aligned(4);
158
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159struct amdgim_vf2pf_info_v1 {
160 /* header contains size and version */
bed1ed36 161 struct amd_sriov_msg_vf2pf_info_header header;
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162 /* driver version */
163 char driver_version[64];
164 /* driver certification, 1=WHQL, 0=None */
165 unsigned int driver_cert;
166 /* guest OS type and version: need a define */
167 unsigned int os_info;
168 /* in the unit of 1M */
169 unsigned int fb_usage;
170 /* guest gfx engine usage percentage */
171 unsigned int gfx_usage;
172 /* guest gfx engine health percentage */
173 unsigned int gfx_health;
174 /* guest compute engine usage percentage */
175 unsigned int compute_usage;
176 /* guest compute engine health percentage */
177 unsigned int compute_health;
178 /* guest vce engine usage percentage. 0xffff means N/A. */
179 unsigned int vce_enc_usage;
180 /* guest vce engine health percentage. 0xffff means N/A. */
181 unsigned int vce_enc_health;
182 /* guest uvd engine usage percentage. 0xffff means N/A. */
183 unsigned int uvd_enc_usage;
184 /* guest uvd engine usage percentage. 0xffff means N/A. */
185 unsigned int uvd_enc_health;
186 unsigned int checksum;
187} __aligned(4);
188
189struct amdgim_vf2pf_info_v2 {
190 /* header contains size and version */
bed1ed36 191 struct amd_sriov_msg_vf2pf_info_header header;
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192 uint32_t checksum;
193 /* driver version */
194 uint8_t driver_version[64];
195 /* driver certification, 1=WHQL, 0=None */
196 uint32_t driver_cert;
197 /* guest OS type and version: need a define */
198 uint32_t os_info;
199 /* in the unit of 1M */
200 uint32_t fb_usage;
201 /* guest gfx engine usage percentage */
202 uint32_t gfx_usage;
203 /* guest gfx engine health percentage */
204 uint32_t gfx_health;
205 /* guest compute engine usage percentage */
206 uint32_t compute_usage;
207 /* guest compute engine health percentage */
208 uint32_t compute_health;
209 /* guest vce engine usage percentage. 0xffff means N/A. */
210 uint32_t vce_enc_usage;
211 /* guest vce engine health percentage. 0xffff means N/A. */
212 uint32_t vce_enc_health;
213 /* guest uvd engine usage percentage. 0xffff means N/A. */
214 uint32_t uvd_enc_usage;
215 /* guest uvd engine usage percentage. 0xffff means N/A. */
216 uint32_t uvd_enc_health;
bed1ed36 217 uint32_t reserved[AMDGIM_GET_STRUCTURE_RESERVED_SIZE(256, 64, 0, (12 + sizeof(struct amd_sriov_msg_vf2pf_info_header)/sizeof(uint32_t)), 0)];
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218} __aligned(4);
219
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220struct amdgpu_virt_ras_err_handler_data {
221 /* point to bad page records array */
222 struct eeprom_table_record *bps;
223 /* point to reserved bo array */
224 struct amdgpu_bo **bps_bo;
225 /* the count of entries */
226 int count;
227 /* last reserved entry's index + 1 */
228 int last_reserved;
229};
230
ceeb50ed 231/* GPU virtualization */
5a5099cb 232struct amdgpu_virt {
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233 uint32_t caps;
234 struct amdgpu_bo *csa_obj;
43974dac 235 void *csa_cpu_addr;
ae65a26d 236 bool chained_ib_support;
1e9f1392 237 uint32_t reg_val_offs;
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238 struct amdgpu_irq_src ack_irq;
239 struct amdgpu_irq_src rcv_irq;
480da262 240 struct work_struct flr_work;
ecb2b9c6 241 struct amdgpu_mm_table mm_table;
1e9f1392 242 const struct amdgpu_virt_ops *ops;
519b8b76 243 struct amdgpu_vf_error_buffer vf_errors;
2dc8f81e 244 struct amdgpu_virt_fw_reserve fw_reserve;
75bc6099 245 uint32_t gim_feature;
78d48112 246 uint32_t reg_access_mode;
aa53bc2e 247 int req_init_data_ver;
95a2f917 248 bool tdr_debug;
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249 struct amdgpu_virt_ras_err_handler_data *virt_eh_data;
250 bool ras_init_done;
5d238510 251 uint32_t reg_access;
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252
253 /* vf2pf message */
254 struct delayed_work vf2pf_work;
255 uint32_t vf2pf_update_interval_ms;
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256
257 /* multimedia bandwidth config */
258 bool is_mm_bw_enabled;
259 uint32_t decode_max_dimension_pixels;
260 uint32_t decode_max_frame_pixels;
261 uint32_t encode_max_dimension_pixels;
262 uint32_t encode_max_frame_pixels;
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263
264 /* the ucode id to signal the autoload */
265 uint32_t autoload_ucode_id;
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266};
267
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268struct amdgpu_video_codec_info;
269
ceeb50ed 270#define amdgpu_sriov_enabled(adev) \
5a5099cb 271((adev)->virt.caps & AMDGPU_SRIOV_CAPS_ENABLE_IOV)
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272
273#define amdgpu_sriov_vf(adev) \
5a5099cb 274((adev)->virt.caps & AMDGPU_SRIOV_CAPS_IS_VF)
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275
276#define amdgpu_sriov_bios(adev) \
5a5099cb 277((adev)->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS)
ceeb50ed 278
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279#define amdgpu_sriov_runtime(adev) \
280((adev)->virt.caps & AMDGPU_SRIOV_CAPS_RUNTIME)
281
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282#define amdgpu_sriov_fullaccess(adev) \
283(amdgpu_sriov_vf((adev)) && !amdgpu_sriov_runtime((adev)))
284
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285#define amdgpu_sriov_reg_indirect_en(adev) \
286(amdgpu_sriov_vf((adev)) && \
287 ((adev)->virt.gim_feature & (AMDGIM_FEATURE_INDIRECT_REG_ACCESS)))
288
289#define amdgpu_sriov_reg_indirect_ih(adev) \
290(amdgpu_sriov_vf((adev)) && \
291 ((adev)->virt.reg_access & (AMDGIM_FEATURE_IH_REG_PSP_EN)))
292
293#define amdgpu_sriov_reg_indirect_mmhub(adev) \
294(amdgpu_sriov_vf((adev)) && \
295 ((adev)->virt.reg_access & (AMDGIM_FEATURE_MMHUB_REG_RLC_EN)))
296
297#define amdgpu_sriov_reg_indirect_gc(adev) \
298(amdgpu_sriov_vf((adev)) && \
299 ((adev)->virt.reg_access & (AMDGIM_FEATURE_GC_REG_RLC_EN)))
300
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301#define amdgpu_sriov_rlcg_error_report_enabled(adev) \
302 (amdgpu_sriov_reg_indirect_mmhub(adev) || amdgpu_sriov_reg_indirect_gc(adev))
303
ceeb50ed 304#define amdgpu_passthrough(adev) \
5a5099cb 305((adev)->virt.caps & AMDGPU_PASSTHROUGH_MODE)
ceeb50ed 306
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307#define amdgpu_sriov_vf_mmio_access_protection(adev) \
308((adev)->virt.caps & AMDGPU_VF_MMIO_ACCESS_PROTECT)
309
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310static inline bool is_virtual_machine(void)
311{
039cacd2 312#if defined(CONFIG_X86)
ceeb50ed 313 return boot_cpu_has(X86_FEATURE_HYPERVISOR);
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314#elif defined(CONFIG_ARM64)
315 return !is_kernel_in_hyp_mode();
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316#else
317 return false;
318#endif
319}
320
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321#define amdgpu_sriov_is_pp_one_vf(adev) \
322 ((adev)->virt.gim_feature & AMDGIM_FEATURE_PP_ONE_VF)
95a2f917 323#define amdgpu_sriov_is_debug(adev) \
53b3f8f4 324 ((!amdgpu_in_reset(adev)) && adev->virt.tdr_debug)
d32709da 325#define amdgpu_sriov_is_normal(adev) \
53b3f8f4 326 ((!amdgpu_in_reset(adev)) && (!adev->virt.tdr_debug))
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327#define amdgpu_sriov_is_av1_support(adev) \
328 ((adev)->virt.gim_feature & AMDGIM_FEATURE_AV1_SUPPORT)
a16f8f11 329bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev);
bc992ba5 330void amdgpu_virt_init_setting(struct amdgpu_device *adev);
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331void amdgpu_virt_kiq_reg_write_reg_wait(struct amdgpu_device *adev,
332 uint32_t reg0, uint32_t rreg1,
333 uint32_t ref, uint32_t mask);
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334int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init);
335int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init);
336int amdgpu_virt_reset_gpu(struct amdgpu_device *adev);
aa53bc2e 337void amdgpu_virt_request_init_data(struct amdgpu_device *adev);
b636176e 338int amdgpu_virt_wait_reset(struct amdgpu_device *adev);
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339int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev);
340void amdgpu_virt_free_mm_table(struct amdgpu_device *adev);
5278a159 341void amdgpu_virt_release_ras_err_handler_data(struct amdgpu_device *adev);
2dc8f81e 342void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev);
892deb48 343void amdgpu_virt_exchange_data(struct amdgpu_device *adev);
519b8b76 344void amdgpu_virt_fini_data_exchange(struct amdgpu_device *adev);
3aa0115d 345void amdgpu_detect_virtualization(struct amdgpu_device *adev);
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346
347bool amdgpu_virt_can_access_debugfs(struct amdgpu_device *adev);
348int amdgpu_virt_enable_access_debugfs(struct amdgpu_device *adev);
349void amdgpu_virt_disable_access_debugfs(struct amdgpu_device *adev);
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350
351enum amdgpu_sriov_vf_mode amdgpu_virt_get_sriov_vf_mode(struct amdgpu_device *adev);
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352
353void amdgpu_virt_update_sriov_video_codec(struct amdgpu_device *adev,
354 struct amdgpu_video_codec_info *encode, uint32_t encode_array_size,
355 struct amdgpu_video_codec_info *decode, uint32_t decode_array_size);
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356void amdgpu_sriov_wreg(struct amdgpu_device *adev,
357 u32 offset, u32 value,
358 u32 acc_flags, u32 hwip);
359u32 amdgpu_sriov_rreg(struct amdgpu_device *adev,
360 u32 offset, u32 acc_flags, u32 hwip);
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361bool amdgpu_virt_fw_load_skip_check(struct amdgpu_device *adev,
362 uint32_t ucode_id);
5a5099cb 363#endif