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 enum amdgpu_sriov_vf_mode {
56 SRIOV_VF_MODE_BARE_METAL = 0,
58 SRIOV_VF_MODE_MULTI_VF,
61 struct amdgpu_mm_table {
67 #define AMDGPU_VF_ERROR_ENTRY_SIZE 16
69 /* struct error_entry - amdgpu VF error information. */
70 struct amdgpu_vf_error_buffer {
74 uint16_t code[AMDGPU_VF_ERROR_ENTRY_SIZE];
75 uint16_t flags[AMDGPU_VF_ERROR_ENTRY_SIZE];
76 uint64_t data[AMDGPU_VF_ERROR_ENTRY_SIZE];
82 * struct amdgpu_virt_ops - amdgpu device virt operations
84 struct amdgpu_virt_ops {
85 int (*req_full_gpu)(struct amdgpu_device *adev, bool init);
86 int (*rel_full_gpu)(struct amdgpu_device *adev, bool init);
87 int (*req_init_data)(struct amdgpu_device *adev);
88 int (*reset_gpu)(struct amdgpu_device *adev);
89 int (*wait_reset)(struct amdgpu_device *adev);
90 void (*trans_msg)(struct amdgpu_device *adev, enum idh_request req,
91 u32 data1, u32 data2, u32 data3);
92 void (*ras_poison_handler)(struct amdgpu_device *adev,
93 enum amdgpu_ras_block block);
97 * Firmware Reserve Frame buffer
99 struct amdgpu_virt_fw_reserve {
100 struct amd_sriov_msg_pf2vf_info_header *p_pf2vf;
101 struct amd_sriov_msg_vf2pf_info_header *p_vf2pf;
102 unsigned int checksum_key;
108 * Defination between PF and VF
109 * Structures forcibly aligned to 4 to keep the same style as PF.
111 #define AMDGIM_DATAEXCHANGE_OFFSET (64 * 1024)
113 #define AMDGIM_GET_STRUCTURE_RESERVED_SIZE(total, u8, u16, u32, u64) \
114 (total - (((u8)+3) / 4 + ((u16)+1) / 2 + (u32) + (u64)*2))
116 enum AMDGIM_FEATURE_FLAG {
117 /* GIM supports feature of Error log collecting */
118 AMDGIM_FEATURE_ERROR_LOG_COLLECT = 0x1,
119 /* GIM supports feature of loading uCodes */
120 AMDGIM_FEATURE_GIM_LOAD_UCODES = 0x2,
121 /* VRAM LOST by GIM */
122 AMDGIM_FEATURE_GIM_FLR_VRAMLOST = 0x4,
124 AMDGIM_FEATURE_GIM_MM_BW_MGR = 0x8,
125 /* PP ONE VF MODE in GIM */
126 AMDGIM_FEATURE_PP_ONE_VF = (1 << 4),
127 /* Indirect Reg Access enabled */
128 AMDGIM_FEATURE_INDIRECT_REG_ACCESS = (1 << 5),
129 /* AV1 Support MODE*/
130 AMDGIM_FEATURE_AV1_SUPPORT = (1 << 6),
131 /* VCN RB decouple */
132 AMDGIM_FEATURE_VCN_RB_DECOUPLE = (1 << 7),
135 enum AMDGIM_REG_ACCESS_FLAG {
136 /* Use PSP to program IH_RB_CNTL */
137 AMDGIM_FEATURE_IH_REG_PSP_EN = (1 << 0),
138 /* Use RLC to program MMHUB regs */
139 AMDGIM_FEATURE_MMHUB_REG_RLC_EN = (1 << 1),
140 /* Use RLC to program GC regs */
141 AMDGIM_FEATURE_GC_REG_RLC_EN = (1 << 2),
144 struct amdgim_pf2vf_info_v1 {
145 /* header contains size and version */
146 struct amd_sriov_msg_pf2vf_info_header header;
147 /* max_width * max_height */
148 unsigned int uvd_enc_max_pixels_count;
149 /* 16x16 pixels/sec, codec independent */
150 unsigned int uvd_enc_max_bandwidth;
151 /* max_width * max_height */
152 unsigned int vce_enc_max_pixels_count;
153 /* 16x16 pixels/sec, codec independent */
154 unsigned int vce_enc_max_bandwidth;
155 /* MEC FW position in kb from the start of visible frame buffer */
156 unsigned int mecfw_kboffset;
157 /* The features flags of the GIM driver supports. */
158 unsigned int feature_flags;
159 /* use private key from mailbox 2 to create chueksum */
160 unsigned int checksum;
163 struct amdgim_vf2pf_info_v1 {
164 /* header contains size and version */
165 struct amd_sriov_msg_vf2pf_info_header header;
167 char driver_version[64];
168 /* driver certification, 1=WHQL, 0=None */
169 unsigned int driver_cert;
170 /* guest OS type and version: need a define */
171 unsigned int os_info;
172 /* in the unit of 1M */
173 unsigned int fb_usage;
174 /* guest gfx engine usage percentage */
175 unsigned int gfx_usage;
176 /* guest gfx engine health percentage */
177 unsigned int gfx_health;
178 /* guest compute engine usage percentage */
179 unsigned int compute_usage;
180 /* guest compute engine health percentage */
181 unsigned int compute_health;
182 /* guest vce engine usage percentage. 0xffff means N/A. */
183 unsigned int vce_enc_usage;
184 /* guest vce engine health percentage. 0xffff means N/A. */
185 unsigned int vce_enc_health;
186 /* guest uvd engine usage percentage. 0xffff means N/A. */
187 unsigned int uvd_enc_usage;
188 /* guest uvd engine usage percentage. 0xffff means N/A. */
189 unsigned int uvd_enc_health;
190 unsigned int checksum;
193 struct amdgim_vf2pf_info_v2 {
194 /* header contains size and version */
195 struct amd_sriov_msg_vf2pf_info_header header;
198 uint8_t driver_version[64];
199 /* driver certification, 1=WHQL, 0=None */
200 uint32_t driver_cert;
201 /* guest OS type and version: need a define */
203 /* in the unit of 1M */
205 /* guest gfx engine usage percentage */
207 /* guest gfx engine health percentage */
209 /* guest compute engine usage percentage */
210 uint32_t compute_usage;
211 /* guest compute engine health percentage */
212 uint32_t compute_health;
213 /* guest vce engine usage percentage. 0xffff means N/A. */
214 uint32_t vce_enc_usage;
215 /* guest vce engine health percentage. 0xffff means N/A. */
216 uint32_t vce_enc_health;
217 /* guest uvd engine usage percentage. 0xffff means N/A. */
218 uint32_t uvd_enc_usage;
219 /* guest uvd engine usage percentage. 0xffff means N/A. */
220 uint32_t uvd_enc_health;
221 uint32_t reserved[AMDGIM_GET_STRUCTURE_RESERVED_SIZE(256, 64, 0, (12 + sizeof(struct amd_sriov_msg_vf2pf_info_header)/sizeof(uint32_t)), 0)];
224 struct amdgpu_virt_ras_err_handler_data {
225 /* point to bad page records array */
226 struct eeprom_table_record *bps;
227 /* point to reserved bo array */
228 struct amdgpu_bo **bps_bo;
229 /* the count of entries */
231 /* last reserved entry's index + 1 */
235 /* GPU virtualization */
238 struct amdgpu_bo *csa_obj;
240 bool chained_ib_support;
241 uint32_t reg_val_offs;
242 struct amdgpu_irq_src ack_irq;
243 struct amdgpu_irq_src rcv_irq;
244 struct work_struct flr_work;
245 struct amdgpu_mm_table mm_table;
246 const struct amdgpu_virt_ops *ops;
247 struct amdgpu_vf_error_buffer vf_errors;
248 struct amdgpu_virt_fw_reserve fw_reserve;
249 uint32_t gim_feature;
250 uint32_t reg_access_mode;
251 int req_init_data_ver;
253 struct amdgpu_virt_ras_err_handler_data *virt_eh_data;
258 struct delayed_work vf2pf_work;
259 uint32_t vf2pf_update_interval_ms;
261 /* multimedia bandwidth config */
262 bool is_mm_bw_enabled;
263 uint32_t decode_max_dimension_pixels;
264 uint32_t decode_max_frame_pixels;
265 uint32_t encode_max_dimension_pixels;
266 uint32_t encode_max_frame_pixels;
268 /* the ucode id to signal the autoload */
269 uint32_t autoload_ucode_id;
272 struct amdgpu_video_codec_info;
274 #define amdgpu_sriov_enabled(adev) \
275 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_ENABLE_IOV)
277 #define amdgpu_sriov_vf(adev) \
278 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_IS_VF)
280 #define amdgpu_sriov_bios(adev) \
281 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS)
283 #define amdgpu_sriov_runtime(adev) \
284 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_RUNTIME)
286 #define amdgpu_sriov_fullaccess(adev) \
287 (amdgpu_sriov_vf((adev)) && !amdgpu_sriov_runtime((adev)))
289 #define amdgpu_sriov_reg_indirect_en(adev) \
290 (amdgpu_sriov_vf((adev)) && \
291 ((adev)->virt.gim_feature & (AMDGIM_FEATURE_INDIRECT_REG_ACCESS)))
293 #define amdgpu_sriov_reg_indirect_ih(adev) \
294 (amdgpu_sriov_vf((adev)) && \
295 ((adev)->virt.reg_access & (AMDGIM_FEATURE_IH_REG_PSP_EN)))
297 #define amdgpu_sriov_reg_indirect_mmhub(adev) \
298 (amdgpu_sriov_vf((adev)) && \
299 ((adev)->virt.reg_access & (AMDGIM_FEATURE_MMHUB_REG_RLC_EN)))
301 #define amdgpu_sriov_reg_indirect_gc(adev) \
302 (amdgpu_sriov_vf((adev)) && \
303 ((adev)->virt.reg_access & (AMDGIM_FEATURE_GC_REG_RLC_EN)))
305 #define amdgpu_sriov_rlcg_error_report_enabled(adev) \
306 (amdgpu_sriov_reg_indirect_mmhub(adev) || amdgpu_sriov_reg_indirect_gc(adev))
308 #define amdgpu_passthrough(adev) \
309 ((adev)->virt.caps & AMDGPU_PASSTHROUGH_MODE)
311 #define amdgpu_sriov_vf_mmio_access_protection(adev) \
312 ((adev)->virt.caps & AMDGPU_VF_MMIO_ACCESS_PROTECT)
314 static inline bool is_virtual_machine(void)
316 #if defined(CONFIG_X86)
317 return boot_cpu_has(X86_FEATURE_HYPERVISOR);
318 #elif defined(CONFIG_ARM64)
319 return !is_kernel_in_hyp_mode();
325 #define amdgpu_sriov_is_pp_one_vf(adev) \
326 ((adev)->virt.gim_feature & AMDGIM_FEATURE_PP_ONE_VF)
327 #define amdgpu_sriov_is_debug(adev) \
328 ((!amdgpu_in_reset(adev)) && adev->virt.tdr_debug)
329 #define amdgpu_sriov_is_normal(adev) \
330 ((!amdgpu_in_reset(adev)) && (!adev->virt.tdr_debug))
331 #define amdgpu_sriov_is_av1_support(adev) \
332 ((adev)->virt.gim_feature & AMDGIM_FEATURE_AV1_SUPPORT)
333 #define amdgpu_sriov_is_vcn_rb_decouple(adev) \
334 ((adev)->virt.gim_feature & AMDGIM_FEATURE_VCN_RB_DECOUPLE)
335 bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev);
336 void amdgpu_virt_init_setting(struct amdgpu_device *adev);
337 int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init);
338 int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init);
339 int amdgpu_virt_reset_gpu(struct amdgpu_device *adev);
340 void amdgpu_virt_request_init_data(struct amdgpu_device *adev);
341 int amdgpu_virt_wait_reset(struct amdgpu_device *adev);
342 int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev);
343 void amdgpu_virt_free_mm_table(struct amdgpu_device *adev);
344 void amdgpu_virt_release_ras_err_handler_data(struct amdgpu_device *adev);
345 void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev);
346 void amdgpu_virt_exchange_data(struct amdgpu_device *adev);
347 void amdgpu_virt_fini_data_exchange(struct amdgpu_device *adev);
348 void amdgpu_detect_virtualization(struct amdgpu_device *adev);
350 bool amdgpu_virt_can_access_debugfs(struct amdgpu_device *adev);
351 int amdgpu_virt_enable_access_debugfs(struct amdgpu_device *adev);
352 void amdgpu_virt_disable_access_debugfs(struct amdgpu_device *adev);
354 enum amdgpu_sriov_vf_mode amdgpu_virt_get_sriov_vf_mode(struct amdgpu_device *adev);
356 void amdgpu_virt_update_sriov_video_codec(struct amdgpu_device *adev,
357 struct amdgpu_video_codec_info *encode, uint32_t encode_array_size,
358 struct amdgpu_video_codec_info *decode, uint32_t decode_array_size);
359 void amdgpu_sriov_wreg(struct amdgpu_device *adev,
360 u32 offset, u32 value,
361 u32 acc_flags, u32 hwip, u32 xcc_id);
362 u32 amdgpu_sriov_rreg(struct amdgpu_device *adev,
363 u32 offset, u32 acc_flags, u32 hwip, u32 xcc_id);
364 bool amdgpu_virt_fw_load_skip_check(struct amdgpu_device *adev,
366 void amdgpu_virt_post_reset(struct amdgpu_device *adev);
367 bool amdgpu_sriov_xnack_support(struct amdgpu_device *adev);
368 bool amdgpu_virt_get_rlcg_reg_access_flag(struct amdgpu_device *adev,
369 u32 acc_flags, u32 hwip,
370 bool write, u32 *rlcg_flag);
371 u32 amdgpu_virt_rlcg_reg_rw(struct amdgpu_device *adev, u32 offset, u32 v, u32 flag, u32 xcc_id);