2 * Copyright 2016 Advanced Micro Devices, Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
27 #include "amdgv_sriovmsg.h"
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 */
33 #define AMDGPU_SRIOV_CAPS_RUNTIME (1 << 4) /* is out of full access mode */
34 #define AMDGPU_VF_MMIO_ACCESS_PROTECT (1 << 5) /* MMIO write access is not allowed in sriov runtime */
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)
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
47 #define AMDGPU_RLCG_SCRATCH1_ADDRESS_MASK 0xFFFFF
48 #define AMDGPU_RLCG_SCRATCH1_ERROR_MASK 0xF000000
50 /* all asic after AI use this offset */
51 #define mmRCC_IOV_FUNC_IDENTIFIER 0xDE5
52 /* tonga/fiji use this offset */
53 #define mmBIF_IOV_FUNC_IDENTIFIER 0x1503
55 #define AMDGPU_VF2PF_UPDATE_MAX_RETRY_LIMIT 5
57 enum amdgpu_sriov_vf_mode {
58 SRIOV_VF_MODE_BARE_METAL = 0,
60 SRIOV_VF_MODE_MULTI_VF,
63 struct amdgpu_mm_table {
69 #define AMDGPU_VF_ERROR_ENTRY_SIZE 16
71 /* struct error_entry - amdgpu VF error information. */
72 struct amdgpu_vf_error_buffer {
76 uint16_t code[AMDGPU_VF_ERROR_ENTRY_SIZE];
77 uint16_t flags[AMDGPU_VF_ERROR_ENTRY_SIZE];
78 uint64_t data[AMDGPU_VF_ERROR_ENTRY_SIZE];
84 * struct amdgpu_virt_ops - amdgpu device virt operations
86 struct amdgpu_virt_ops {
87 int (*req_full_gpu)(struct amdgpu_device *adev, bool init);
88 int (*rel_full_gpu)(struct amdgpu_device *adev, bool init);
89 int (*req_init_data)(struct amdgpu_device *adev);
90 int (*reset_gpu)(struct amdgpu_device *adev);
91 void (*ready_to_reset)(struct amdgpu_device *adev);
92 int (*wait_reset)(struct amdgpu_device *adev);
93 void (*trans_msg)(struct amdgpu_device *adev, enum idh_request req,
94 u32 data1, u32 data2, u32 data3);
95 void (*ras_poison_handler)(struct amdgpu_device *adev,
96 enum amdgpu_ras_block block);
100 * Firmware Reserve Frame buffer
102 struct amdgpu_virt_fw_reserve {
103 struct amd_sriov_msg_pf2vf_info_header *p_pf2vf;
104 struct amd_sriov_msg_vf2pf_info_header *p_vf2pf;
105 unsigned int checksum_key;
111 * Defination between PF and VF
112 * Structures forcibly aligned to 4 to keep the same style as PF.
114 #define AMDGIM_DATAEXCHANGE_OFFSET (64 * 1024)
116 #define AMDGIM_GET_STRUCTURE_RESERVED_SIZE(total, u8, u16, u32, u64) \
117 (total - (((u8)+3) / 4 + ((u16)+1) / 2 + (u32) + (u64)*2))
119 enum AMDGIM_FEATURE_FLAG {
120 /* GIM supports feature of Error log collecting */
121 AMDGIM_FEATURE_ERROR_LOG_COLLECT = 0x1,
122 /* GIM supports feature of loading uCodes */
123 AMDGIM_FEATURE_GIM_LOAD_UCODES = 0x2,
124 /* VRAM LOST by GIM */
125 AMDGIM_FEATURE_GIM_FLR_VRAMLOST = 0x4,
127 AMDGIM_FEATURE_GIM_MM_BW_MGR = 0x8,
128 /* PP ONE VF MODE in GIM */
129 AMDGIM_FEATURE_PP_ONE_VF = (1 << 4),
130 /* Indirect Reg Access enabled */
131 AMDGIM_FEATURE_INDIRECT_REG_ACCESS = (1 << 5),
132 /* AV1 Support MODE*/
133 AMDGIM_FEATURE_AV1_SUPPORT = (1 << 6),
134 /* VCN RB decouple */
135 AMDGIM_FEATURE_VCN_RB_DECOUPLE = (1 << 7),
137 AMDGIM_FEATURE_MES_INFO_ENABLE = (1 << 8),
140 enum AMDGIM_REG_ACCESS_FLAG {
141 /* Use PSP to program IH_RB_CNTL */
142 AMDGIM_FEATURE_IH_REG_PSP_EN = (1 << 0),
143 /* Use RLC to program MMHUB regs */
144 AMDGIM_FEATURE_MMHUB_REG_RLC_EN = (1 << 1),
145 /* Use RLC to program GC regs */
146 AMDGIM_FEATURE_GC_REG_RLC_EN = (1 << 2),
149 struct amdgim_pf2vf_info_v1 {
150 /* header contains size and version */
151 struct amd_sriov_msg_pf2vf_info_header header;
152 /* max_width * max_height */
153 unsigned int uvd_enc_max_pixels_count;
154 /* 16x16 pixels/sec, codec independent */
155 unsigned int uvd_enc_max_bandwidth;
156 /* max_width * max_height */
157 unsigned int vce_enc_max_pixels_count;
158 /* 16x16 pixels/sec, codec independent */
159 unsigned int vce_enc_max_bandwidth;
160 /* MEC FW position in kb from the start of visible frame buffer */
161 unsigned int mecfw_kboffset;
162 /* The features flags of the GIM driver supports. */
163 unsigned int feature_flags;
164 /* use private key from mailbox 2 to create chueksum */
165 unsigned int checksum;
168 struct amdgim_vf2pf_info_v1 {
169 /* header contains size and version */
170 struct amd_sriov_msg_vf2pf_info_header header;
172 char driver_version[64];
173 /* driver certification, 1=WHQL, 0=None */
174 unsigned int driver_cert;
175 /* guest OS type and version: need a define */
176 unsigned int os_info;
177 /* in the unit of 1M */
178 unsigned int fb_usage;
179 /* guest gfx engine usage percentage */
180 unsigned int gfx_usage;
181 /* guest gfx engine health percentage */
182 unsigned int gfx_health;
183 /* guest compute engine usage percentage */
184 unsigned int compute_usage;
185 /* guest compute engine health percentage */
186 unsigned int compute_health;
187 /* guest vce engine usage percentage. 0xffff means N/A. */
188 unsigned int vce_enc_usage;
189 /* guest vce engine health percentage. 0xffff means N/A. */
190 unsigned int vce_enc_health;
191 /* guest uvd engine usage percentage. 0xffff means N/A. */
192 unsigned int uvd_enc_usage;
193 /* guest uvd engine usage percentage. 0xffff means N/A. */
194 unsigned int uvd_enc_health;
195 unsigned int checksum;
198 struct amdgim_vf2pf_info_v2 {
199 /* header contains size and version */
200 struct amd_sriov_msg_vf2pf_info_header header;
203 uint8_t driver_version[64];
204 /* driver certification, 1=WHQL, 0=None */
205 uint32_t driver_cert;
206 /* guest OS type and version: need a define */
208 /* in the unit of 1M */
210 /* guest gfx engine usage percentage */
212 /* guest gfx engine health percentage */
214 /* guest compute engine usage percentage */
215 uint32_t compute_usage;
216 /* guest compute engine health percentage */
217 uint32_t compute_health;
218 /* guest vce engine usage percentage. 0xffff means N/A. */
219 uint32_t vce_enc_usage;
220 /* guest vce engine health percentage. 0xffff means N/A. */
221 uint32_t vce_enc_health;
222 /* guest uvd engine usage percentage. 0xffff means N/A. */
223 uint32_t uvd_enc_usage;
224 /* guest uvd engine usage percentage. 0xffff means N/A. */
225 uint32_t uvd_enc_health;
226 uint32_t reserved[AMDGIM_GET_STRUCTURE_RESERVED_SIZE(256, 64, 0, (12 + sizeof(struct amd_sriov_msg_vf2pf_info_header)/sizeof(uint32_t)), 0)];
229 struct amdgpu_virt_ras_err_handler_data {
230 /* point to bad page records array */
231 struct eeprom_table_record *bps;
232 /* point to reserved bo array */
233 struct amdgpu_bo **bps_bo;
234 /* the count of entries */
236 /* last reserved entry's index + 1 */
240 /* GPU virtualization */
243 struct amdgpu_bo *csa_obj;
245 bool chained_ib_support;
246 uint32_t reg_val_offs;
247 struct amdgpu_irq_src ack_irq;
248 struct amdgpu_irq_src rcv_irq;
249 struct work_struct flr_work;
250 struct amdgpu_mm_table mm_table;
251 const struct amdgpu_virt_ops *ops;
252 struct amdgpu_vf_error_buffer vf_errors;
253 struct amdgpu_virt_fw_reserve fw_reserve;
254 uint32_t gim_feature;
255 uint32_t reg_access_mode;
256 int req_init_data_ver;
258 struct amdgpu_virt_ras_err_handler_data *virt_eh_data;
263 struct delayed_work vf2pf_work;
264 uint32_t vf2pf_update_interval_ms;
265 int vf2pf_update_retry_cnt;
267 /* multimedia bandwidth config */
268 bool is_mm_bw_enabled;
269 uint32_t decode_max_dimension_pixels;
270 uint32_t decode_max_frame_pixels;
271 uint32_t encode_max_dimension_pixels;
272 uint32_t encode_max_frame_pixels;
274 /* the ucode id to signal the autoload */
275 uint32_t autoload_ucode_id;
277 struct mutex rlcg_reg_lock;
280 struct amdgpu_video_codec_info;
282 #define amdgpu_sriov_enabled(adev) \
283 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_ENABLE_IOV)
285 #define amdgpu_sriov_vf(adev) \
286 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_IS_VF)
288 #define amdgpu_sriov_bios(adev) \
289 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS)
291 #define amdgpu_sriov_runtime(adev) \
292 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_RUNTIME)
294 #define amdgpu_sriov_fullaccess(adev) \
295 (amdgpu_sriov_vf((adev)) && !amdgpu_sriov_runtime((adev)))
297 #define amdgpu_sriov_reg_indirect_en(adev) \
298 (amdgpu_sriov_vf((adev)) && \
299 ((adev)->virt.gim_feature & (AMDGIM_FEATURE_INDIRECT_REG_ACCESS)))
301 #define amdgpu_sriov_reg_indirect_ih(adev) \
302 (amdgpu_sriov_vf((adev)) && \
303 ((adev)->virt.reg_access & (AMDGIM_FEATURE_IH_REG_PSP_EN)))
305 #define amdgpu_sriov_reg_indirect_mmhub(adev) \
306 (amdgpu_sriov_vf((adev)) && \
307 ((adev)->virt.reg_access & (AMDGIM_FEATURE_MMHUB_REG_RLC_EN)))
309 #define amdgpu_sriov_reg_indirect_gc(adev) \
310 (amdgpu_sriov_vf((adev)) && \
311 ((adev)->virt.reg_access & (AMDGIM_FEATURE_GC_REG_RLC_EN)))
313 #define amdgpu_sriov_rlcg_error_report_enabled(adev) \
314 (amdgpu_sriov_reg_indirect_mmhub(adev) || amdgpu_sriov_reg_indirect_gc(adev))
316 #define amdgpu_passthrough(adev) \
317 ((adev)->virt.caps & AMDGPU_PASSTHROUGH_MODE)
319 #define amdgpu_sriov_vf_mmio_access_protection(adev) \
320 ((adev)->virt.caps & AMDGPU_VF_MMIO_ACCESS_PROTECT)
322 static inline bool is_virtual_machine(void)
324 #if defined(CONFIG_X86)
325 return boot_cpu_has(X86_FEATURE_HYPERVISOR);
326 #elif defined(CONFIG_ARM64)
327 return !is_kernel_in_hyp_mode();
333 #define amdgpu_sriov_is_pp_one_vf(adev) \
334 ((adev)->virt.gim_feature & AMDGIM_FEATURE_PP_ONE_VF)
335 #define amdgpu_sriov_is_debug(adev) \
336 ((!amdgpu_in_reset(adev)) && adev->virt.tdr_debug)
337 #define amdgpu_sriov_is_normal(adev) \
338 ((!amdgpu_in_reset(adev)) && (!adev->virt.tdr_debug))
339 #define amdgpu_sriov_is_av1_support(adev) \
340 ((adev)->virt.gim_feature & AMDGIM_FEATURE_AV1_SUPPORT)
341 #define amdgpu_sriov_is_vcn_rb_decouple(adev) \
342 ((adev)->virt.gim_feature & AMDGIM_FEATURE_VCN_RB_DECOUPLE)
343 #define amdgpu_sriov_is_mes_info_enable(adev) \
344 ((adev)->virt.gim_feature & AMDGIM_FEATURE_MES_INFO_ENABLE)
345 bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev);
346 void amdgpu_virt_init_setting(struct amdgpu_device *adev);
347 int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init);
348 int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init);
349 int amdgpu_virt_reset_gpu(struct amdgpu_device *adev);
350 void amdgpu_virt_request_init_data(struct amdgpu_device *adev);
351 void amdgpu_virt_ready_to_reset(struct amdgpu_device *adev);
352 int amdgpu_virt_wait_reset(struct amdgpu_device *adev);
353 int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev);
354 void amdgpu_virt_free_mm_table(struct amdgpu_device *adev);
355 void amdgpu_virt_release_ras_err_handler_data(struct amdgpu_device *adev);
356 void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev);
357 void amdgpu_virt_exchange_data(struct amdgpu_device *adev);
358 void amdgpu_virt_fini_data_exchange(struct amdgpu_device *adev);
359 void amdgpu_detect_virtualization(struct amdgpu_device *adev);
361 bool amdgpu_virt_can_access_debugfs(struct amdgpu_device *adev);
362 int amdgpu_virt_enable_access_debugfs(struct amdgpu_device *adev);
363 void amdgpu_virt_disable_access_debugfs(struct amdgpu_device *adev);
365 enum amdgpu_sriov_vf_mode amdgpu_virt_get_sriov_vf_mode(struct amdgpu_device *adev);
367 void amdgpu_virt_update_sriov_video_codec(struct amdgpu_device *adev,
368 struct amdgpu_video_codec_info *encode, uint32_t encode_array_size,
369 struct amdgpu_video_codec_info *decode, uint32_t decode_array_size);
370 void amdgpu_sriov_wreg(struct amdgpu_device *adev,
371 u32 offset, u32 value,
372 u32 acc_flags, u32 hwip, u32 xcc_id);
373 u32 amdgpu_sriov_rreg(struct amdgpu_device *adev,
374 u32 offset, u32 acc_flags, u32 hwip, u32 xcc_id);
375 bool amdgpu_virt_fw_load_skip_check(struct amdgpu_device *adev,
377 void amdgpu_virt_post_reset(struct amdgpu_device *adev);
378 bool amdgpu_sriov_xnack_support(struct amdgpu_device *adev);
379 bool amdgpu_virt_get_rlcg_reg_access_flag(struct amdgpu_device *adev,
380 u32 acc_flags, u32 hwip,
381 bool write, u32 *rlcg_flag);
382 u32 amdgpu_virt_rlcg_reg_rw(struct amdgpu_device *adev, u32 offset, u32 v, u32 flag, u32 xcc_id);