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 #define AMDGPU_SRIOV_CAPS_SRIOV_VBIOS (1 << 0) /* vBIOS is sr-iov ready */
28 #define AMDGPU_SRIOV_CAPS_ENABLE_IOV (1 << 1) /* sr-iov is enabled on this GPU */
29 #define AMDGPU_SRIOV_CAPS_IS_VF (1 << 2) /* this GPU is a virtual function */
30 #define AMDGPU_PASSTHROUGH_MODE (1 << 3) /* thw whole GPU is pass through for VM */
31 #define AMDGPU_SRIOV_CAPS_RUNTIME (1 << 4) /* is out of full access mode */
33 /* all asic after AI use this offset */
34 #define mmRCC_IOV_FUNC_IDENTIFIER 0xDE5
35 /* tonga/fiji use this offset */
36 #define mmBIF_IOV_FUNC_IDENTIFIER 0x1503
38 enum amdgpu_sriov_vf_mode {
39 SRIOV_VF_MODE_BARE_METAL = 0,
41 SRIOV_VF_MODE_MULTI_VF,
44 struct amdgpu_mm_table {
50 #define AMDGPU_VF_ERROR_ENTRY_SIZE 16
52 /* struct error_entry - amdgpu VF error information. */
53 struct amdgpu_vf_error_buffer {
57 uint16_t code[AMDGPU_VF_ERROR_ENTRY_SIZE];
58 uint16_t flags[AMDGPU_VF_ERROR_ENTRY_SIZE];
59 uint64_t data[AMDGPU_VF_ERROR_ENTRY_SIZE];
63 * struct amdgpu_virt_ops - amdgpu device virt operations
65 struct amdgpu_virt_ops {
66 int (*req_full_gpu)(struct amdgpu_device *adev, bool init);
67 int (*rel_full_gpu)(struct amdgpu_device *adev, bool init);
68 int (*req_init_data)(struct amdgpu_device *adev);
69 int (*reset_gpu)(struct amdgpu_device *adev);
70 int (*wait_reset)(struct amdgpu_device *adev);
71 void (*trans_msg)(struct amdgpu_device *adev, u32 req, u32 data1, u32 data2, u32 data3);
75 * Firmware Reserve Frame buffer
77 struct amdgpu_virt_fw_reserve {
78 struct amd_sriov_msg_pf2vf_info_header *p_pf2vf;
79 struct amd_sriov_msg_vf2pf_info_header *p_vf2pf;
80 unsigned int checksum_key;
83 * Defination between PF and VF
84 * Structures forcibly aligned to 4 to keep the same style as PF.
86 #define AMDGIM_DATAEXCHANGE_OFFSET (64 * 1024)
88 #define AMDGIM_GET_STRUCTURE_RESERVED_SIZE(total, u8, u16, u32, u64) \
89 (total - (((u8)+3) / 4 + ((u16)+1) / 2 + (u32) + (u64)*2))
91 enum AMDGIM_FEATURE_FLAG {
92 /* GIM supports feature of Error log collecting */
93 AMDGIM_FEATURE_ERROR_LOG_COLLECT = 0x1,
94 /* GIM supports feature of loading uCodes */
95 AMDGIM_FEATURE_GIM_LOAD_UCODES = 0x2,
96 /* VRAM LOST by GIM */
97 AMDGIM_FEATURE_GIM_FLR_VRAMLOST = 0x4,
99 AMDGIM_FEATURE_GIM_MM_BW_MGR = 0x8,
100 /* PP ONE VF MODE in GIM */
101 AMDGIM_FEATURE_PP_ONE_VF = (1 << 4),
104 struct amd_sriov_msg_pf2vf_info_header {
105 /* the total structure size in byte. */
107 /* version of this structure, written by the GIM */
110 uint32_t reserved[2];
112 struct amdgim_pf2vf_info_v1 {
113 /* header contains size and version */
114 struct amd_sriov_msg_pf2vf_info_header header;
115 /* max_width * max_height */
116 unsigned int uvd_enc_max_pixels_count;
117 /* 16x16 pixels/sec, codec independent */
118 unsigned int uvd_enc_max_bandwidth;
119 /* max_width * max_height */
120 unsigned int vce_enc_max_pixels_count;
121 /* 16x16 pixels/sec, codec independent */
122 unsigned int vce_enc_max_bandwidth;
123 /* MEC FW position in kb from the start of visible frame buffer */
124 unsigned int mecfw_kboffset;
125 /* The features flags of the GIM driver supports. */
126 unsigned int feature_flags;
127 /* use private key from mailbox 2 to create chueksum */
128 unsigned int checksum;
131 struct amdgim_pf2vf_info_v2 {
132 /* header contains size and version */
133 struct amd_sriov_msg_pf2vf_info_header header;
134 /* use private key from mailbox 2 to create chueksum */
136 /* The features flags of the GIM driver supports. */
137 uint32_t feature_flags;
138 /* max_width * max_height */
139 uint32_t uvd_enc_max_pixels_count;
140 /* 16x16 pixels/sec, codec independent */
141 uint32_t uvd_enc_max_bandwidth;
142 /* max_width * max_height */
143 uint32_t vce_enc_max_pixels_count;
144 /* 16x16 pixels/sec, codec independent */
145 uint32_t vce_enc_max_bandwidth;
146 /* MEC FW position in kb from the start of VF visible frame buffer */
147 uint64_t mecfw_kboffset;
148 /* MEC FW size in KB */
149 uint32_t mecfw_ksize;
150 /* UVD FW position in kb from the start of VF visible frame buffer */
151 uint64_t uvdfw_kboffset;
152 /* UVD FW size in KB */
153 uint32_t uvdfw_ksize;
154 /* VCE FW position in kb from the start of VF visible frame buffer */
155 uint64_t vcefw_kboffset;
156 /* VCE FW size in KB */
157 uint32_t vcefw_ksize;
158 uint32_t reserved[AMDGIM_GET_STRUCTURE_RESERVED_SIZE(256, 0, 0, (9 + sizeof(struct amd_sriov_msg_pf2vf_info_header)/sizeof(uint32_t)), 3)];
162 struct amd_sriov_msg_vf2pf_info_header {
163 /* the total structure size in byte. */
165 /*version of this structure, written by the guest */
168 uint32_t reserved[2];
171 struct amdgim_vf2pf_info_v1 {
172 /* header contains size and version */
173 struct amd_sriov_msg_vf2pf_info_header header;
175 char driver_version[64];
176 /* driver certification, 1=WHQL, 0=None */
177 unsigned int driver_cert;
178 /* guest OS type and version: need a define */
179 unsigned int os_info;
180 /* in the unit of 1M */
181 unsigned int fb_usage;
182 /* guest gfx engine usage percentage */
183 unsigned int gfx_usage;
184 /* guest gfx engine health percentage */
185 unsigned int gfx_health;
186 /* guest compute engine usage percentage */
187 unsigned int compute_usage;
188 /* guest compute engine health percentage */
189 unsigned int compute_health;
190 /* guest vce engine usage percentage. 0xffff means N/A. */
191 unsigned int vce_enc_usage;
192 /* guest vce engine health percentage. 0xffff means N/A. */
193 unsigned int vce_enc_health;
194 /* guest uvd engine usage percentage. 0xffff means N/A. */
195 unsigned int uvd_enc_usage;
196 /* guest uvd engine usage percentage. 0xffff means N/A. */
197 unsigned int uvd_enc_health;
198 unsigned int checksum;
201 struct amdgim_vf2pf_info_v2 {
202 /* header contains size and version */
203 struct amd_sriov_msg_vf2pf_info_header header;
206 uint8_t driver_version[64];
207 /* driver certification, 1=WHQL, 0=None */
208 uint32_t driver_cert;
209 /* guest OS type and version: need a define */
211 /* in the unit of 1M */
213 /* guest gfx engine usage percentage */
215 /* guest gfx engine health percentage */
217 /* guest compute engine usage percentage */
218 uint32_t compute_usage;
219 /* guest compute engine health percentage */
220 uint32_t compute_health;
221 /* guest vce engine usage percentage. 0xffff means N/A. */
222 uint32_t vce_enc_usage;
223 /* guest vce engine health percentage. 0xffff means N/A. */
224 uint32_t vce_enc_health;
225 /* guest uvd engine usage percentage. 0xffff means N/A. */
226 uint32_t uvd_enc_usage;
227 /* guest uvd engine usage percentage. 0xffff means N/A. */
228 uint32_t uvd_enc_health;
229 uint32_t reserved[AMDGIM_GET_STRUCTURE_RESERVED_SIZE(256, 64, 0, (12 + sizeof(struct amd_sriov_msg_vf2pf_info_header)/sizeof(uint32_t)), 0)];
232 #define AMDGPU_FW_VRAM_VF2PF_VER 2
233 typedef struct amdgim_vf2pf_info_v2 amdgim_vf2pf_info ;
235 #define AMDGPU_FW_VRAM_VF2PF_WRITE(adev, field, val) \
237 ((amdgim_vf2pf_info *)adev->virt.fw_reserve.p_vf2pf)->field = (val); \
240 #define AMDGPU_FW_VRAM_VF2PF_READ(adev, field, val) \
242 (*val) = ((amdgim_vf2pf_info *)adev->virt.fw_reserve.p_vf2pf)->field; \
245 #define AMDGPU_FW_VRAM_PF2VF_READ(adev, field, val) \
247 if (!adev->virt.fw_reserve.p_pf2vf) \
250 if (adev->virt.fw_reserve.p_pf2vf->version == 1) \
251 *(val) = ((struct amdgim_pf2vf_info_v1 *)adev->virt.fw_reserve.p_pf2vf)->field; \
252 if (adev->virt.fw_reserve.p_pf2vf->version == 2) \
253 *(val) = ((struct amdgim_pf2vf_info_v2 *)adev->virt.fw_reserve.p_pf2vf)->field; \
257 /* GPU virtualization */
260 struct amdgpu_bo *csa_obj;
262 bool chained_ib_support;
263 uint32_t reg_val_offs;
264 struct amdgpu_irq_src ack_irq;
265 struct amdgpu_irq_src rcv_irq;
266 struct work_struct flr_work;
267 struct amdgpu_mm_table mm_table;
268 const struct amdgpu_virt_ops *ops;
269 struct amdgpu_vf_error_buffer vf_errors;
270 struct amdgpu_virt_fw_reserve fw_reserve;
271 uint32_t gim_feature;
272 uint32_t reg_access_mode;
273 int req_init_data_ver;
277 #define amdgpu_sriov_enabled(adev) \
278 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_ENABLE_IOV)
280 #define amdgpu_sriov_vf(adev) \
281 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_IS_VF)
283 #define amdgpu_sriov_bios(adev) \
284 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS)
286 #define amdgpu_sriov_runtime(adev) \
287 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_RUNTIME)
289 #define amdgpu_sriov_fullaccess(adev) \
290 (amdgpu_sriov_vf((adev)) && !amdgpu_sriov_runtime((adev)))
292 #define amdgpu_passthrough(adev) \
293 ((adev)->virt.caps & AMDGPU_PASSTHROUGH_MODE)
295 static inline bool is_virtual_machine(void)
298 return boot_cpu_has(X86_FEATURE_HYPERVISOR);
304 #define amdgpu_sriov_is_pp_one_vf(adev) \
305 ((adev)->virt.gim_feature & AMDGIM_FEATURE_PP_ONE_VF)
306 #define amdgpu_sriov_is_debug(adev) \
307 ((!adev->in_gpu_reset) && adev->virt.tdr_debug)
308 #define amdgpu_sriov_is_normal(adev) \
309 ((!adev->in_gpu_reset) && (!adev->virt.tdr_debug))
311 bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev);
312 void amdgpu_virt_init_setting(struct amdgpu_device *adev);
313 void amdgpu_virt_kiq_reg_write_reg_wait(struct amdgpu_device *adev,
314 uint32_t reg0, uint32_t rreg1,
315 uint32_t ref, uint32_t mask);
316 int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init);
317 int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init);
318 int amdgpu_virt_reset_gpu(struct amdgpu_device *adev);
319 void amdgpu_virt_request_init_data(struct amdgpu_device *adev);
320 int amdgpu_virt_wait_reset(struct amdgpu_device *adev);
321 int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev);
322 void amdgpu_virt_free_mm_table(struct amdgpu_device *adev);
323 int amdgpu_virt_fw_reserve_get_checksum(void *obj, unsigned long obj_size,
325 unsigned int chksum);
326 void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev);
327 void amdgpu_detect_virtualization(struct amdgpu_device *adev);
329 bool amdgpu_virt_can_access_debugfs(struct amdgpu_device *adev);
330 int amdgpu_virt_enable_access_debugfs(struct amdgpu_device *adev);
331 void amdgpu_virt_disable_access_debugfs(struct amdgpu_device *adev);
333 enum amdgpu_sriov_vf_mode amdgpu_virt_get_sriov_vf_mode(struct amdgpu_device *adev);