Extend DRM_IOCTL_AMDXDNA_GET_INFO to include additional parameters that allow collection of resource and telemetry data.
Signed-off-by: Lizhi Hou <[email protected]> --- drivers/accel/amdxdna/aie2_ctx.c | 6 -- drivers/accel/amdxdna/aie2_message.c | 58 ++++++++-- drivers/accel/amdxdna/aie2_msg_priv.h | 25 ++++- drivers/accel/amdxdna/aie2_pci.c | 100 ++++++++++++++++++ drivers/accel/amdxdna/aie2_pci.h | 6 ++ drivers/accel/amdxdna/aie2_smu.c | 11 ++ .../accel/amdxdna/amdxdna_mailbox_helper.h | 6 +- drivers/accel/amdxdna/amdxdna_pci_drv.c | 3 +- drivers/accel/amdxdna/npu1_regs.c | 1 + drivers/accel/amdxdna/npu2_regs.c | 1 + drivers/accel/amdxdna/npu4_regs.c | 1 + drivers/accel/amdxdna/npu5_regs.c | 1 + drivers/accel/amdxdna/npu6_regs.c | 1 + include/uapi/drm/amdxdna_accel.h | 34 ++++++ 14 files changed, 238 insertions(+), 16 deletions(-) diff --git a/drivers/accel/amdxdna/aie2_ctx.c b/drivers/accel/amdxdna/aie2_ctx.c index 958a64bb5251..2b51c5211c2d 100644 --- a/drivers/accel/amdxdna/aie2_ctx.c +++ b/drivers/accel/amdxdna/aie2_ctx.c @@ -553,7 +553,6 @@ int aie2_hwctx_init(struct amdxdna_hwctx *hwctx) struct drm_gpu_scheduler *sched; struct amdxdna_hwctx_priv *priv; struct amdxdna_gem_obj *heap; - struct amdxdna_dev_hdl *ndev; int i, ret; priv = kzalloc(sizeof(*hwctx->priv), GFP_KERNEL); @@ -651,8 +650,6 @@ int aie2_hwctx_init(struct amdxdna_hwctx *hwctx) amdxdna_pm_suspend_put(xdna); hwctx->status = HWCTX_STAT_INIT; - ndev = xdna->dev_handle; - ndev->hwctx_num++; init_waitqueue_head(&priv->job_free_wq); XDNA_DBG(xdna, "hwctx %s init completed", hwctx->name); @@ -685,13 +682,10 @@ int aie2_hwctx_init(struct amdxdna_hwctx *hwctx) void aie2_hwctx_fini(struct amdxdna_hwctx *hwctx) { - struct amdxdna_dev_hdl *ndev; struct amdxdna_dev *xdna; int idx; xdna = hwctx->client->xdna; - ndev = xdna->dev_handle; - ndev->hwctx_num--; XDNA_DBG(xdna, "%s sequence number %lld", hwctx->name, hwctx->priv->seq); drm_sched_entity_destroy(&hwctx->priv->entity); diff --git a/drivers/accel/amdxdna/aie2_message.c b/drivers/accel/amdxdna/aie2_message.c index 0ec1dc6fe668..3a4c845d783a 100644 --- a/drivers/accel/amdxdna/aie2_message.c +++ b/drivers/accel/amdxdna/aie2_message.c @@ -45,7 +45,7 @@ static int aie2_send_mgmt_msg_wait(struct amdxdna_dev_hdl *ndev, ndev->mgmt_chann = NULL; } - if (!ret && *hdl->data != AIE2_STATUS_SUCCESS) { + if (!ret && *hdl->status != AIE2_STATUS_SUCCESS) { XDNA_ERR(xdna, "command opcode 0x%x failed, status 0x%x", msg->opcode, *hdl->data); ret = -EINVAL; @@ -233,6 +233,7 @@ int aie2_create_context(struct amdxdna_dev_hdl *ndev, struct amdxdna_hwctx *hwct ret = -EINVAL; goto out_destroy_context; } + ndev->hwctx_num++; XDNA_DBG(xdna, "%s mailbox channel irq: %d, msix_id: %d", hwctx->name, ret, resp.msix_id); @@ -267,6 +268,7 @@ int aie2_destroy_context(struct amdxdna_dev_hdl *ndev, struct amdxdna_hwctx *hwc hwctx->fw_ctx_id); hwctx->priv->mbox_chann = NULL; hwctx->fw_ctx_id = -1; + ndev->hwctx_num--; return ret; } @@ -332,11 +334,6 @@ int aie2_query_status(struct amdxdna_dev_hdl *ndev, char __user *buf, goto fail; } - if (resp.status != AIE2_STATUS_SUCCESS) { - XDNA_ERR(xdna, "Query NPU status failed, status 0x%x", resp.status); - ret = -EINVAL; - goto fail; - } XDNA_DBG(xdna, "Query NPU status completed"); if (size < resp.size) { @@ -358,6 +355,55 @@ int aie2_query_status(struct amdxdna_dev_hdl *ndev, char __user *buf, return ret; } +int aie2_query_telemetry(struct amdxdna_dev_hdl *ndev, + char __user *buf, u32 size, + struct amdxdna_drm_query_telemetry_header *header) +{ + DECLARE_AIE2_MSG(get_telemetry, MSG_OP_GET_TELEMETRY); + struct amdxdna_dev *xdna = ndev->xdna; + dma_addr_t dma_addr; + u8 *addr; + int ret; + + if (header->type >= MAX_TELEMETRY_TYPE) + return -EINVAL; + + addr = dma_alloc_noncoherent(xdna->ddev.dev, size, &dma_addr, + DMA_FROM_DEVICE, GFP_KERNEL); + if (!addr) + return -ENOMEM; + + req.buf_addr = dma_addr; + req.buf_size = size; + req.type = header->type; + + drm_clflush_virt_range(addr, size); /* device can access */ + ret = aie2_send_mgmt_msg_wait(ndev, &msg); + if (ret) { + XDNA_ERR(xdna, "Query telemetry failed, status %d", ret); + goto free_buf; + } + + if (size < resp.size) { + ret = -EINVAL; + XDNA_ERR(xdna, "Bad buffer size. Available: %u. Needs: %u", size, resp.size); + goto free_buf; + } + + if (copy_to_user(buf, addr, resp.size)) { + ret = -EFAULT; + XDNA_ERR(xdna, "Failed to copy telemetry to user space"); + goto free_buf; + } + + header->major = resp.major; + header->minor = resp.minor; + +free_buf: + dma_free_noncoherent(xdna->ddev.dev, size, addr, dma_addr, DMA_FROM_DEVICE); + return ret; +} + int aie2_register_asyn_event_msg(struct amdxdna_dev_hdl *ndev, dma_addr_t addr, u32 size, void *handle, int (*cb)(void*, void __iomem *, size_t)) { diff --git a/drivers/accel/amdxdna/aie2_msg_priv.h b/drivers/accel/amdxdna/aie2_msg_priv.h index cb53132029eb..2dbea1d09980 100644 --- a/drivers/accel/amdxdna/aie2_msg_priv.h +++ b/drivers/accel/amdxdna/aie2_msg_priv.h @@ -9,7 +9,8 @@ enum aie2_msg_opcode { MSG_OP_CREATE_CONTEXT = 0x2, MSG_OP_DESTROY_CONTEXT = 0x3, - MSG_OP_SYNC_BO = 0x7, + MSG_OP_GET_TELEMETRY = 0x4, + MSG_OP_SYNC_BO = 0x7, MSG_OP_EXECUTE_BUFFER_CF = 0xC, MSG_OP_QUERY_COL_STATUS = 0xD, MSG_OP_QUERY_AIE_TILE_INFO = 0xE, @@ -136,6 +137,28 @@ struct destroy_ctx_resp { enum aie2_msg_status status; } __packed; +enum telemetry_type { + TELEMETRY_TYPE_DISABLED, + TELEMETRY_TYPE_HEALTH, + TELEMETRY_TYPE_ERROR_INFO, + TELEMETRY_TYPE_PROFILING, + TELEMETRY_TYPE_DEBUG, + MAX_TELEMETRY_TYPE +}; + +struct get_telemetry_req { + enum telemetry_type type; + __u64 buf_addr; + __u32 buf_size; +} __packed; + +struct get_telemetry_resp { + __u32 major; + __u32 minor; + __u32 size; + enum aie2_msg_status status; +} __packed; + struct execute_buffer_req { __u32 cu_idx; __u32 payload[19]; diff --git a/drivers/accel/amdxdna/aie2_pci.c b/drivers/accel/amdxdna/aie2_pci.c index f1a8112b080f..80313a2a98d4 100644 --- a/drivers/accel/amdxdna/aie2_pci.c +++ b/drivers/accel/amdxdna/aie2_pci.c @@ -825,6 +825,100 @@ static int aie2_get_hwctx_status(struct amdxdna_client *client, return 0; } +static int aie2_query_resource_info(struct amdxdna_client *client, + struct amdxdna_drm_get_info *args) +{ + struct amdxdna_drm_get_resource_info res_info; + const struct amdxdna_dev_priv *priv; + struct amdxdna_dev_hdl *ndev; + struct amdxdna_dev *xdna; + + xdna = client->xdna; + ndev = xdna->dev_handle; + priv = ndev->priv; + + res_info.npu_clk_max = priv->dpm_clk_tbl[ndev->max_dpm_level].hclk; + res_info.npu_tops_max = ndev->max_tops; + res_info.npu_task_max = priv->hwctx_limit; + res_info.npu_tops_curr = ndev->curr_tops; + res_info.npu_task_curr = ndev->hwctx_num; + + if (copy_to_user(u64_to_user_ptr(args->buffer), &res_info, sizeof(res_info))) + return -EFAULT; + + return 0; +} + +static int aie2_fill_hwctx_map(struct amdxdna_hwctx *hwctx, void *arg) +{ + struct amdxdna_dev *xdna = hwctx->client->xdna; + u32 *map = arg; + + if (hwctx->fw_ctx_id >= xdna->dev_handle->priv->hwctx_limit) { + XDNA_ERR(xdna, "Invalid fw ctx id %d/%d ", hwctx->fw_ctx_id, + xdna->dev_handle->priv->hwctx_limit); + return -EINVAL; + } + + map[hwctx->fw_ctx_id] = hwctx->id; + return 0; +} + +static int aie2_get_telemetry(struct amdxdna_client *client, + struct amdxdna_drm_get_info *args) +{ + struct amdxdna_drm_query_telemetry_header *header __free(kfree) = NULL; + u32 telemetry_data_sz, header_sz, elem_num; + struct amdxdna_dev *xdna = client->xdna; + struct amdxdna_client *tmp_client; + int ret; + + elem_num = xdna->dev_handle->priv->hwctx_limit; + header_sz = struct_size(header, map, elem_num); + if (args->buffer_size <= header_sz) { + XDNA_ERR(xdna, "Invalid buffer size"); + return -EINVAL; + } + + telemetry_data_sz = args->buffer_size - header_sz; + if (telemetry_data_sz > SZ_4M) { + XDNA_ERR(xdna, "Buffer size is too big, %d", telemetry_data_sz); + return -EINVAL; + } + + header = kzalloc(header_sz, GFP_KERNEL); + if (!header) + return -ENOMEM; + + if (copy_from_user(header, u64_to_user_ptr(args->buffer), sizeof(*header))) { + XDNA_ERR(xdna, "Failed to copy telemetry header from user"); + return -EFAULT; + } + + header->map_num_elements = elem_num; + list_for_each_entry(tmp_client, &xdna->client_list, node) { + ret = amdxdna_hwctx_walk(tmp_client, &header->map, + aie2_fill_hwctx_map); + if (ret) + return ret; + } + + ret = aie2_query_telemetry(xdna->dev_handle, + u64_to_user_ptr(args->buffer + header_sz), + telemetry_data_sz, header); + if (ret) { + XDNA_ERR(xdna, "Query telemetry failed ret %d", ret); + return ret; + } + + if (copy_to_user(u64_to_user_ptr(args->buffer), header, header_sz)) { + XDNA_ERR(xdna, "Copy header failed"); + return -EFAULT; + } + + return 0; +} + static int aie2_get_info(struct amdxdna_client *client, struct amdxdna_drm_get_info *args) { struct amdxdna_dev *xdna = client->xdna; @@ -859,6 +953,12 @@ static int aie2_get_info(struct amdxdna_client *client, struct amdxdna_drm_get_i case DRM_AMDXDNA_GET_POWER_MODE: ret = aie2_get_power_mode(client, args); break; + case DRM_AMDXDNA_QUERY_TELEMETRY: + ret = aie2_get_telemetry(client, args); + break; + case DRM_AMDXDNA_QUERY_RESOURCE_INFO: + ret = aie2_query_resource_info(client, args); + break; default: XDNA_ERR(xdna, "Not supported request parameter %u", args->param); ret = -EOPNOTSUPP; diff --git a/drivers/accel/amdxdna/aie2_pci.h b/drivers/accel/amdxdna/aie2_pci.h index 243ac21d50c1..cfe42b0d4242 100644 --- a/drivers/accel/amdxdna/aie2_pci.h +++ b/drivers/accel/amdxdna/aie2_pci.h @@ -182,6 +182,8 @@ struct amdxdna_dev_hdl { u32 clk_gating; u32 npuclk_freq; u32 hclk_freq; + u64 max_tops; + u64 curr_tops; /* Mailbox and the management channel */ struct mailbox *mbox; @@ -219,6 +221,7 @@ struct amdxdna_dev_priv { u32 mbox_dev_addr; /* If mbox_size is 0, use BAR size. See MBOX_SIZE macro */ u32 mbox_size; + u32 hwctx_limit; u32 sram_dev_addr; struct aie2_bar_off_pair sram_offs[SRAM_MAX_INDEX]; struct aie2_bar_off_pair psp_regs_off[PSP_MAX_REGS]; @@ -273,6 +276,9 @@ int aie2_create_context(struct amdxdna_dev_hdl *ndev, struct amdxdna_hwctx *hwct int aie2_destroy_context(struct amdxdna_dev_hdl *ndev, struct amdxdna_hwctx *hwctx); int aie2_map_host_buf(struct amdxdna_dev_hdl *ndev, u32 context_id, u64 addr, u64 size); int aie2_query_status(struct amdxdna_dev_hdl *ndev, char __user *buf, u32 size, u32 *cols_filled); +int aie2_query_telemetry(struct amdxdna_dev_hdl *ndev, + char __user *buf, u32 size, + struct amdxdna_drm_query_telemetry_header *header); int aie2_register_asyn_event_msg(struct amdxdna_dev_hdl *ndev, dma_addr_t addr, u32 size, void *handle, int (*cb)(void*, void __iomem *, size_t)); int aie2_config_cu(struct amdxdna_hwctx *hwctx, diff --git a/drivers/accel/amdxdna/aie2_smu.c b/drivers/accel/amdxdna/aie2_smu.c index 7f292a615ed8..11c0e9e7b03a 100644 --- a/drivers/accel/amdxdna/aie2_smu.c +++ b/drivers/accel/amdxdna/aie2_smu.c @@ -23,6 +23,13 @@ #define AIE2_SMU_SET_SOFT_DPMLEVEL 0x7 #define AIE2_SMU_SET_HARD_DPMLEVEL 0x8 +#define NPU4_DPM_TOPS(ndev, dpm_level) \ +({ \ + typeof(ndev) _ndev = ndev; \ + (4096 * (_ndev)->total_col * \ + (_ndev)->priv->dpm_clk_tbl[dpm_level].hclk / 1000000); \ +}) + static int aie2_smu_exec(struct amdxdna_dev_hdl *ndev, u32 reg_cmd, u32 reg_arg, u32 *out) { @@ -84,6 +91,8 @@ int npu1_set_dpm(struct amdxdna_dev_hdl *ndev, u32 dpm_level) amdxdna_pm_suspend_put(ndev->xdna); ndev->hclk_freq = freq; ndev->dpm_level = dpm_level; + ndev->max_tops = 2 * ndev->total_col; + ndev->curr_tops = ndev->max_tops * freq / 1028; XDNA_DBG(ndev->xdna, "MP-NPU clock %d, H clock %d\n", ndev->npuclk_freq, ndev->hclk_freq); @@ -121,6 +130,8 @@ int npu4_set_dpm(struct amdxdna_dev_hdl *ndev, u32 dpm_level) ndev->npuclk_freq = ndev->priv->dpm_clk_tbl[dpm_level].npuclk; ndev->hclk_freq = ndev->priv->dpm_clk_tbl[dpm_level].hclk; ndev->dpm_level = dpm_level; + ndev->max_tops = NPU4_DPM_TOPS(ndev, ndev->max_dpm_level); + ndev->curr_tops = NPU4_DPM_TOPS(ndev, dpm_level); XDNA_DBG(ndev->xdna, "MP-NPU clock %d, H clock %d\n", ndev->npuclk_freq, ndev->hclk_freq); diff --git a/drivers/accel/amdxdna/amdxdna_mailbox_helper.h b/drivers/accel/amdxdna/amdxdna_mailbox_helper.h index 710ff8873d61..556c712cad0a 100644 --- a/drivers/accel/amdxdna/amdxdna_mailbox_helper.h +++ b/drivers/accel/amdxdna/amdxdna_mailbox_helper.h @@ -16,16 +16,18 @@ struct xdna_notify { u32 *data; size_t size; int error; + u32 *status; }; -#define DECLARE_XDNA_MSG_COMMON(name, op, status) \ +#define DECLARE_XDNA_MSG_COMMON(name, op, s) \ struct name##_req req = { 0 }; \ - struct name##_resp resp = { status }; \ + struct name##_resp resp = { .status = s }; \ struct xdna_notify hdl = { \ .error = 0, \ .data = (u32 *)&resp, \ .size = sizeof(resp), \ .comp = COMPLETION_INITIALIZER_ONSTACK(hdl.comp), \ + .status = (u32 *)&resp.status, \ }; \ struct xdna_mailbox_msg msg = { \ .send_data = (u8 *)&req, \ diff --git a/drivers/accel/amdxdna/amdxdna_pci_drv.c b/drivers/accel/amdxdna/amdxdna_pci_drv.c index 3599e713bfcb..2e47a09f10cc 100644 --- a/drivers/accel/amdxdna/amdxdna_pci_drv.c +++ b/drivers/accel/amdxdna/amdxdna_pci_drv.c @@ -29,9 +29,10 @@ MODULE_FIRMWARE("amdnpu/17f0_20/npu.sbin"); * 0.1: Support getting all hardware contexts by DRM_IOCTL_AMDXDNA_GET_ARRAY * 0.2: Support getting last error hardware error * 0.3: Support firmware debug buffer + * 0.4: Support getting resource and telemetry information */ #define AMDXDNA_DRIVER_MAJOR 0 -#define AMDXDNA_DRIVER_MINOR 3 +#define AMDXDNA_DRIVER_MINOR 4 /* * Bind the driver base on (vendor_id, device_id) pair and later use the diff --git a/drivers/accel/amdxdna/npu1_regs.c b/drivers/accel/amdxdna/npu1_regs.c index 10124cccb102..23feb5f6fad3 100644 --- a/drivers/accel/amdxdna/npu1_regs.c +++ b/drivers/accel/amdxdna/npu1_regs.c @@ -73,6 +73,7 @@ static const struct amdxdna_dev_priv npu1_dev_priv = { .mbox_dev_addr = NPU1_MBOX_BAR_BASE, .mbox_size = 0, /* Use BAR size */ .sram_dev_addr = NPU1_SRAM_BAR_BASE, + .hwctx_limit = 6, .sram_offs = { DEFINE_BAR_OFFSET(MBOX_CHANN_OFF, NPU1_SRAM, MPNPU_SRAM_X2I_MAILBOX_0), DEFINE_BAR_OFFSET(FW_ALIVE_OFF, NPU1_SRAM, MPNPU_SRAM_I2X_MAILBOX_15), diff --git a/drivers/accel/amdxdna/npu2_regs.c b/drivers/accel/amdxdna/npu2_regs.c index a081cac75ee0..67c2ae931c62 100644 --- a/drivers/accel/amdxdna/npu2_regs.c +++ b/drivers/accel/amdxdna/npu2_regs.c @@ -71,6 +71,7 @@ static const struct amdxdna_dev_priv npu2_dev_priv = { .mbox_dev_addr = NPU2_MBOX_BAR_BASE, .mbox_size = 0, /* Use BAR size */ .sram_dev_addr = NPU2_SRAM_BAR_BASE, + .hwctx_limit = 16, .sram_offs = { DEFINE_BAR_OFFSET(MBOX_CHANN_OFF, NPU2_SRAM, MPNPU_SRAM_X2I_MAILBOX_0), DEFINE_BAR_OFFSET(FW_ALIVE_OFF, NPU2_SRAM, MPNPU_SRAM_X2I_MAILBOX_15), diff --git a/drivers/accel/amdxdna/npu4_regs.c b/drivers/accel/amdxdna/npu4_regs.c index e1da882420ec..fac6c1b0b74b 100644 --- a/drivers/accel/amdxdna/npu4_regs.c +++ b/drivers/accel/amdxdna/npu4_regs.c @@ -93,6 +93,7 @@ static const struct amdxdna_dev_priv npu4_dev_priv = { .mbox_dev_addr = NPU4_MBOX_BAR_BASE, .mbox_size = 0, /* Use BAR size */ .sram_dev_addr = NPU4_SRAM_BAR_BASE, + .hwctx_limit = 16, .sram_offs = { DEFINE_BAR_OFFSET(MBOX_CHANN_OFF, NPU4_SRAM, MPNPU_SRAM_X2I_MAILBOX_0), DEFINE_BAR_OFFSET(FW_ALIVE_OFF, NPU4_SRAM, MPNPU_SRAM_X2I_MAILBOX_15), diff --git a/drivers/accel/amdxdna/npu5_regs.c b/drivers/accel/amdxdna/npu5_regs.c index 5f1cf83461c4..c91e1fa76ff5 100644 --- a/drivers/accel/amdxdna/npu5_regs.c +++ b/drivers/accel/amdxdna/npu5_regs.c @@ -71,6 +71,7 @@ static const struct amdxdna_dev_priv npu5_dev_priv = { .mbox_dev_addr = NPU5_MBOX_BAR_BASE, .mbox_size = 0, /* Use BAR size */ .sram_dev_addr = NPU5_SRAM_BAR_BASE, + .hwctx_limit = 16, .sram_offs = { DEFINE_BAR_OFFSET(MBOX_CHANN_OFF, NPU5_SRAM, MPNPU_SRAM_X2I_MAILBOX_0), DEFINE_BAR_OFFSET(FW_ALIVE_OFF, NPU5_SRAM, MPNPU_SRAM_X2I_MAILBOX_15), diff --git a/drivers/accel/amdxdna/npu6_regs.c b/drivers/accel/amdxdna/npu6_regs.c index 94a7005685a7..773f738915a7 100644 --- a/drivers/accel/amdxdna/npu6_regs.c +++ b/drivers/accel/amdxdna/npu6_regs.c @@ -71,6 +71,7 @@ static const struct amdxdna_dev_priv npu6_dev_priv = { .mbox_dev_addr = NPU6_MBOX_BAR_BASE, .mbox_size = 0, /* Use BAR size */ .sram_dev_addr = NPU6_SRAM_BAR_BASE, + .hwctx_limit = 16, .sram_offs = { DEFINE_BAR_OFFSET(MBOX_CHANN_OFF, NPU6_SRAM, MPNPU_SRAM_X2I_MAILBOX_0), DEFINE_BAR_OFFSET(FW_ALIVE_OFF, NPU6_SRAM, MPNPU_SRAM_X2I_MAILBOX_15), diff --git a/include/uapi/drm/amdxdna_accel.h b/include/uapi/drm/amdxdna_accel.h index c7eec9ceb2ae..8ad254bc35a5 100644 --- a/include/uapi/drm/amdxdna_accel.h +++ b/include/uapi/drm/amdxdna_accel.h @@ -442,6 +442,40 @@ enum amdxdna_drm_get_param { DRM_AMDXDNA_QUERY_HW_CONTEXTS, DRM_AMDXDNA_QUERY_FIRMWARE_VERSION = 8, DRM_AMDXDNA_GET_POWER_MODE, + DRM_AMDXDNA_QUERY_TELEMETRY, + DRM_AMDXDNA_QUERY_RESOURCE_INFO = 12, +}; + +/** + * struct amdxdna_drm_get_resource_info - Get resource information + */ +struct amdxdna_drm_get_resource_info { + /** @npu_clk_max: max H-Clocks */ + __u64 npu_clk_max; + /** @npu_tops_max: max TOPs */ + __u64 npu_tops_max; + /** @npu_task_max: max number of tasks */ + __u64 npu_task_max; + /** @npu_tops_curr: current TOPs */ + __u64 npu_tops_curr; + /** @npu_task_curr: current number of tasks */ + __u64 npu_task_curr; +}; + +/** + * struct amdxdna_drm_query_telemetry_header - Telemetry data header + */ +struct amdxdna_drm_query_telemetry_header { + /** @major: Firmware telemetry interface major version number */ + __u32 major; + /** @minor: Firmware telemetry interface minor version number */ + __u32 minor; + /** @type: Telemetry query type */ + __u32 type; + /** @map_num_elements: Total number of elements in the map table */ + __u32 map_num_elements; + /** @map: Element map */ + __u32 map[]; }; /** -- 2.34.1
