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 2
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);
97 bool (*rcvd_ras_intr)(struct amdgpu_device *adev);
101 * Firmware Reserve Frame buffer
103 struct amdgpu_virt_fw_reserve {
104 struct amd_sriov_msg_pf2vf_info_header *p_pf2vf;
105 struct amd_sriov_msg_vf2pf_info_header *p_vf2pf;
106 unsigned int checksum_key;
112 * Defination between PF and VF
113 * Structures forcibly aligned to 4 to keep the same style as PF.
115 #define AMDGIM_DATAEXCHANGE_OFFSET (64 * 1024)
117 #define AMDGIM_GET_STRUCTURE_RESERVED_SIZE(total, u8, u16, u32, u64) \
118 (total - (((u8)+3) / 4 + ((u16)+1) / 2 + (u32) + (u64)*2))
120 enum AMDGIM_FEATURE_FLAG {
121 /* GIM supports feature of Error log collecting */
122 AMDGIM_FEATURE_ERROR_LOG_COLLECT = 0x1,
123 /* GIM supports feature of loading uCodes */
124 AMDGIM_FEATURE_GIM_LOAD_UCODES = 0x2,
125 /* VRAM LOST by GIM */
126 AMDGIM_FEATURE_GIM_FLR_VRAMLOST = 0x4,
128 AMDGIM_FEATURE_GIM_MM_BW_MGR = 0x8,
129 /* PP ONE VF MODE in GIM */
130 AMDGIM_FEATURE_PP_ONE_VF = (1 << 4),
131 /* Indirect Reg Access enabled */
132 AMDGIM_FEATURE_INDIRECT_REG_ACCESS = (1 << 5),
133 /* AV1 Support MODE*/
134 AMDGIM_FEATURE_AV1_SUPPORT = (1 << 6),
135 /* VCN RB decouple */
136 AMDGIM_FEATURE_VCN_RB_DECOUPLE = (1 << 7),
138 AMDGIM_FEATURE_MES_INFO_ENABLE = (1 << 8),
141 enum AMDGIM_REG_ACCESS_FLAG {
142 /* Use PSP to program IH_RB_CNTL */
143 AMDGIM_FEATURE_IH_REG_PSP_EN = (1 << 0),
144 /* Use RLC to program MMHUB regs */
145 AMDGIM_FEATURE_MMHUB_REG_RLC_EN = (1 << 1),
146 /* Use RLC to program GC regs */
147 AMDGIM_FEATURE_GC_REG_RLC_EN = (1 << 2),
150 struct amdgim_pf2vf_info_v1 {
151 /* header contains size and version */
152 struct amd_sriov_msg_pf2vf_info_header header;
153 /* max_width * max_height */
154 unsigned int uvd_enc_max_pixels_count;
155 /* 16x16 pixels/sec, codec independent */
156 unsigned int uvd_enc_max_bandwidth;
157 /* max_width * max_height */
158 unsigned int vce_enc_max_pixels_count;
159 /* 16x16 pixels/sec, codec independent */
160 unsigned int vce_enc_max_bandwidth;
161 /* MEC FW position in kb from the start of visible frame buffer */
162 unsigned int mecfw_kboffset;
163 /* The features flags of the GIM driver supports. */
164 unsigned int feature_flags;
165 /* use private key from mailbox 2 to create chueksum */
166 unsigned int checksum;
169 struct amdgim_vf2pf_info_v1 {
170 /* header contains size and version */
171 struct amd_sriov_msg_vf2pf_info_header header;
173 char driver_version[64];
174 /* driver certification, 1=WHQL, 0=None */
175 unsigned int driver_cert;
176 /* guest OS type and version: need a define */
177 unsigned int os_info;
178 /* in the unit of 1M */
179 unsigned int fb_usage;
180 /* guest gfx engine usage percentage */
181 unsigned int gfx_usage;
182 /* guest gfx engine health percentage */
183 unsigned int gfx_health;
184 /* guest compute engine usage percentage */
185 unsigned int compute_usage;
186 /* guest compute engine health percentage */
187 unsigned int compute_health;
188 /* guest vce engine usage percentage. 0xffff means N/A. */
189 unsigned int vce_enc_usage;
190 /* guest vce engine health percentage. 0xffff means N/A. */
191 unsigned int vce_enc_health;
192 /* guest uvd engine usage percentage. 0xffff means N/A. */
193 unsigned int uvd_enc_usage;
194 /* guest uvd engine usage percentage. 0xffff means N/A. */
195 unsigned int uvd_enc_health;
196 unsigned int checksum;
199 struct amdgim_vf2pf_info_v2 {
200 /* header contains size and version */
201 struct amd_sriov_msg_vf2pf_info_header header;
204 uint8_t driver_version[64];
205 /* driver certification, 1=WHQL, 0=None */
206 uint32_t driver_cert;
207 /* guest OS type and version: need a define */
209 /* in the unit of 1M */
211 /* guest gfx engine usage percentage */
213 /* guest gfx engine health percentage */
215 /* guest compute engine usage percentage */
216 uint32_t compute_usage;
217 /* guest compute engine health percentage */
218 uint32_t compute_health;
219 /* guest vce engine usage percentage. 0xffff means N/A. */
220 uint32_t vce_enc_usage;
221 /* guest vce engine health percentage. 0xffff means N/A. */
222 uint32_t vce_enc_health;
223 /* guest uvd engine usage percentage. 0xffff means N/A. */
224 uint32_t uvd_enc_usage;
225 /* guest uvd engine usage percentage. 0xffff means N/A. */
226 uint32_t uvd_enc_health;
227 uint32_t reserved[AMDGIM_GET_STRUCTURE_RESERVED_SIZE(256, 64, 0, (12 + sizeof(struct amd_sriov_msg_vf2pf_info_header)/sizeof(uint32_t)), 0)];
230 struct amdgpu_virt_ras_err_handler_data {
231 /* point to bad page records array */
232 struct eeprom_table_record *bps;
233 /* point to reserved bo array */
234 struct amdgpu_bo **bps_bo;
235 /* the count of entries */
237 /* last reserved entry's index + 1 */
241 /* GPU virtualization */
244 struct amdgpu_bo *csa_obj;
246 bool chained_ib_support;
247 uint32_t reg_val_offs;
248 struct amdgpu_irq_src ack_irq;
249 struct amdgpu_irq_src rcv_irq;
250 struct work_struct flr_work;
251 struct amdgpu_mm_table mm_table;
252 const struct amdgpu_virt_ops *ops;
253 struct amdgpu_vf_error_buffer vf_errors;
254 struct amdgpu_virt_fw_reserve fw_reserve;
255 uint32_t gim_feature;
256 uint32_t reg_access_mode;
257 int req_init_data_ver;
259 struct amdgpu_virt_ras_err_handler_data *virt_eh_data;
264 struct delayed_work vf2pf_work;
265 uint32_t vf2pf_update_interval_ms;
266 int vf2pf_update_retry_cnt;
268 /* multimedia bandwidth config */
269 bool is_mm_bw_enabled;
270 uint32_t decode_max_dimension_pixels;
271 uint32_t decode_max_frame_pixels;
272 uint32_t encode_max_dimension_pixels;
273 uint32_t encode_max_frame_pixels;
275 /* the ucode id to signal the autoload */
276 uint32_t autoload_ucode_id;
278 struct mutex rlcg_reg_lock;
281 struct amdgpu_video_codec_info;
283 #define amdgpu_sriov_enabled(adev) \
284 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_ENABLE_IOV)
286 #define amdgpu_sriov_vf(adev) \
287 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_IS_VF)
289 #define amdgpu_sriov_bios(adev) \
290 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS)
292 #define amdgpu_sriov_runtime(adev) \
293 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_RUNTIME)
295 #define amdgpu_sriov_fullaccess(adev) \
296 (amdgpu_sriov_vf((adev)) && !amdgpu_sriov_runtime((adev)))
298 #define amdgpu_sriov_reg_indirect_en(adev) \
299 (amdgpu_sriov_vf((adev)) && \
300 ((adev)->virt.gim_feature & (AMDGIM_FEATURE_INDIRECT_REG_ACCESS)))
302 #define amdgpu_sriov_reg_indirect_ih(adev) \
303 (amdgpu_sriov_vf((adev)) && \
304 ((adev)->virt.reg_access & (AMDGIM_FEATURE_IH_REG_PSP_EN)))
306 #define amdgpu_sriov_reg_indirect_mmhub(adev) \
307 (amdgpu_sriov_vf((adev)) && \
308 ((adev)->virt.reg_access & (AMDGIM_FEATURE_MMHUB_REG_RLC_EN)))
310 #define amdgpu_sriov_reg_indirect_gc(adev) \
311 (amdgpu_sriov_vf((adev)) && \
312 ((adev)->virt.reg_access & (AMDGIM_FEATURE_GC_REG_RLC_EN)))
314 #define amdgpu_sriov_rlcg_error_report_enabled(adev) \
315 (amdgpu_sriov_reg_indirect_mmhub(adev) || amdgpu_sriov_reg_indirect_gc(adev))
317 #define amdgpu_passthrough(adev) \
318 ((adev)->virt.caps & AMDGPU_PASSTHROUGH_MODE)
320 #define amdgpu_sriov_vf_mmio_access_protection(adev) \
321 ((adev)->virt.caps & AMDGPU_VF_MMIO_ACCESS_PROTECT)
323 static inline bool is_virtual_machine(void)
325 #if defined(CONFIG_X86)
326 return boot_cpu_has(X86_FEATURE_HYPERVISOR);
327 #elif defined(CONFIG_ARM64)
328 return !is_kernel_in_hyp_mode();
334 #define amdgpu_sriov_is_pp_one_vf(adev) \
335 ((adev)->virt.gim_feature & AMDGIM_FEATURE_PP_ONE_VF)
336 #define amdgpu_sriov_is_debug(adev) \
337 ((!amdgpu_in_reset(adev)) && adev->virt.tdr_debug)
338 #define amdgpu_sriov_is_normal(adev) \
339 ((!amdgpu_in_reset(adev)) && (!adev->virt.tdr_debug))
340 #define amdgpu_sriov_is_av1_support(adev) \
341 ((adev)->virt.gim_feature & AMDGIM_FEATURE_AV1_SUPPORT)
342 #define amdgpu_sriov_is_vcn_rb_decouple(adev) \
343 ((adev)->virt.gim_feature & AMDGIM_FEATURE_VCN_RB_DECOUPLE)
344 #define amdgpu_sriov_is_mes_info_enable(adev) \
345 ((adev)->virt.gim_feature & AMDGIM_FEATURE_MES_INFO_ENABLE)
346 bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev);
347 void amdgpu_virt_init_setting(struct amdgpu_device *adev);
348 int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init);
349 int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init);
350 int amdgpu_virt_reset_gpu(struct amdgpu_device *adev);
351 void amdgpu_virt_request_init_data(struct amdgpu_device *adev);
352 void amdgpu_virt_ready_to_reset(struct amdgpu_device *adev);
353 int amdgpu_virt_wait_reset(struct amdgpu_device *adev);
354 int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev);
355 void amdgpu_virt_free_mm_table(struct amdgpu_device *adev);
356 bool amdgpu_virt_rcvd_ras_interrupt(struct amdgpu_device *adev);
357 void amdgpu_virt_release_ras_err_handler_data(struct amdgpu_device *adev);
358 void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev);
359 void amdgpu_virt_exchange_data(struct amdgpu_device *adev);
360 void amdgpu_virt_fini_data_exchange(struct amdgpu_device *adev);
361 void amdgpu_detect_virtualization(struct amdgpu_device *adev);
363 bool amdgpu_virt_can_access_debugfs(struct amdgpu_device *adev);
364 int amdgpu_virt_enable_access_debugfs(struct amdgpu_device *adev);
365 void amdgpu_virt_disable_access_debugfs(struct amdgpu_device *adev);
367 enum amdgpu_sriov_vf_mode amdgpu_virt_get_sriov_vf_mode(struct amdgpu_device *adev);
369 void amdgpu_virt_update_sriov_video_codec(struct amdgpu_device *adev,
370 struct amdgpu_video_codec_info *encode, uint32_t encode_array_size,
371 struct amdgpu_video_codec_info *decode, uint32_t decode_array_size);
372 void amdgpu_sriov_wreg(struct amdgpu_device *adev,
373 u32 offset, u32 value,
374 u32 acc_flags, u32 hwip, u32 xcc_id);
375 u32 amdgpu_sriov_rreg(struct amdgpu_device *adev,
376 u32 offset, u32 acc_flags, u32 hwip, u32 xcc_id);
377 bool amdgpu_virt_fw_load_skip_check(struct amdgpu_device *adev,
379 void amdgpu_virt_pre_reset(struct amdgpu_device *adev);
380 void amdgpu_virt_post_reset(struct amdgpu_device *adev);
381 bool amdgpu_sriov_xnack_support(struct amdgpu_device *adev);
382 bool amdgpu_virt_get_rlcg_reg_access_flag(struct amdgpu_device *adev,
383 u32 acc_flags, u32 hwip,
384 bool write, u32 *rlcg_flag);
385 u32 amdgpu_virt_rlcg_reg_rw(struct amdgpu_device *adev, u32 offset, u32 v, u32 flag, u32 xcc_id);