diff options
| -rw-r--r-- | drivers/accel/amdxdna/Makefile | 1 | ||||
| -rw-r--r-- | drivers/accel/amdxdna/aie2_error.c | 360 | ||||
| -rw-r--r-- | drivers/accel/amdxdna/aie2_message.c | 19 | ||||
| -rw-r--r-- | drivers/accel/amdxdna/aie2_pci.c | 32 | ||||
| -rw-r--r-- | drivers/accel/amdxdna/aie2_pci.h | 9 |
5 files changed, 421 insertions, 0 deletions
diff --git a/drivers/accel/amdxdna/Makefile b/drivers/accel/amdxdna/Makefile index a688c378761f..ed6f87910880 100644 --- a/drivers/accel/amdxdna/Makefile +++ b/drivers/accel/amdxdna/Makefile @@ -2,6 +2,7 @@ amdxdna-y := \ aie2_ctx.o \ + aie2_error.o \ aie2_message.o \ aie2_pci.o \ aie2_psp.o \ diff --git a/drivers/accel/amdxdna/aie2_error.c b/drivers/accel/amdxdna/aie2_error.c new file mode 100644 index 000000000000..b1defaa8513b --- /dev/null +++ b/drivers/accel/amdxdna/aie2_error.c @@ -0,0 +1,360 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2023-2024, Advanced Micro Devices, Inc. + */ + +#include <drm/drm_cache.h> +#include <drm/drm_device.h> +#include <drm/drm_print.h> +#include <drm/gpu_scheduler.h> +#include <linux/dma-mapping.h> +#include <linux/kthread.h> +#include <linux/kernel.h> + +#include "aie2_msg_priv.h" +#include "aie2_pci.h" +#include "amdxdna_mailbox.h" +#include "amdxdna_pci_drv.h" + +struct async_event { + struct amdxdna_dev_hdl *ndev; + struct async_event_msg_resp resp; + struct workqueue_struct *wq; + struct work_struct work; + u8 *buf; + dma_addr_t addr; + u32 size; +}; + +struct async_events { + struct workqueue_struct *wq; + u8 *buf; + dma_addr_t addr; + u32 size; + u32 event_cnt; + struct async_event event[] __counted_by(event_cnt); +}; + +/* + * Below enum, struct and lookup tables are porting from XAIE util header file. + * + * Below data is defined by AIE device and it is used for decode error message + * from the device. + */ + +enum aie_module_type { + AIE_MEM_MOD = 0, + AIE_CORE_MOD, + AIE_PL_MOD, +}; + +enum aie_error_category { + AIE_ERROR_SATURATION = 0, + AIE_ERROR_FP, + AIE_ERROR_STREAM, + AIE_ERROR_ACCESS, + AIE_ERROR_BUS, + AIE_ERROR_INSTRUCTION, + AIE_ERROR_ECC, + AIE_ERROR_LOCK, + AIE_ERROR_DMA, + AIE_ERROR_MEM_PARITY, + /* Unknown is not from XAIE, added for better category */ + AIE_ERROR_UNKNOWN, +}; + +/* Don't pack, unless XAIE side changed */ +struct aie_error { + __u8 row; + __u8 col; + __u32 mod_type; + __u8 event_id; +}; + +struct aie_err_info { + u32 err_cnt; + u32 ret_code; + u32 rsvd; + struct aie_error payload[] __counted_by(err_cnt); +}; + +struct aie_event_category { + u8 event_id; + enum aie_error_category category; +}; + +#define EVENT_CATEGORY(id, cat) { id, cat } +static const struct aie_event_category aie_ml_mem_event_cat[] = { + EVENT_CATEGORY(88U, AIE_ERROR_ECC), + EVENT_CATEGORY(90U, AIE_ERROR_ECC), + EVENT_CATEGORY(91U, AIE_ERROR_MEM_PARITY), + EVENT_CATEGORY(92U, AIE_ERROR_MEM_PARITY), + EVENT_CATEGORY(93U, AIE_ERROR_MEM_PARITY), + EVENT_CATEGORY(94U, AIE_ERROR_MEM_PARITY), + EVENT_CATEGORY(95U, AIE_ERROR_MEM_PARITY), + EVENT_CATEGORY(96U, AIE_ERROR_MEM_PARITY), + EVENT_CATEGORY(97U, AIE_ERROR_DMA), + EVENT_CATEGORY(98U, AIE_ERROR_DMA), + EVENT_CATEGORY(99U, AIE_ERROR_DMA), + EVENT_CATEGORY(100U, AIE_ERROR_DMA), + EVENT_CATEGORY(101U, AIE_ERROR_LOCK), +}; + +static const struct aie_event_category aie_ml_core_event_cat[] = { + EVENT_CATEGORY(55U, AIE_ERROR_ACCESS), + EVENT_CATEGORY(56U, AIE_ERROR_STREAM), + EVENT_CATEGORY(57U, AIE_ERROR_STREAM), + EVENT_CATEGORY(58U, AIE_ERROR_BUS), + EVENT_CATEGORY(59U, AIE_ERROR_INSTRUCTION), + EVENT_CATEGORY(60U, AIE_ERROR_ACCESS), + EVENT_CATEGORY(62U, AIE_ERROR_ECC), + EVENT_CATEGORY(64U, AIE_ERROR_ECC), + EVENT_CATEGORY(65U, AIE_ERROR_ACCESS), + EVENT_CATEGORY(66U, AIE_ERROR_ACCESS), + EVENT_CATEGORY(67U, AIE_ERROR_LOCK), + EVENT_CATEGORY(70U, AIE_ERROR_INSTRUCTION), + EVENT_CATEGORY(71U, AIE_ERROR_STREAM), + EVENT_CATEGORY(72U, AIE_ERROR_BUS), +}; + +static const struct aie_event_category aie_ml_mem_tile_event_cat[] = { + EVENT_CATEGORY(130U, AIE_ERROR_ECC), + EVENT_CATEGORY(132U, AIE_ERROR_ECC), + EVENT_CATEGORY(133U, AIE_ERROR_DMA), + EVENT_CATEGORY(134U, AIE_ERROR_DMA), + EVENT_CATEGORY(135U, AIE_ERROR_STREAM), + EVENT_CATEGORY(136U, AIE_ERROR_STREAM), + EVENT_CATEGORY(137U, AIE_ERROR_STREAM), + EVENT_CATEGORY(138U, AIE_ERROR_BUS), + EVENT_CATEGORY(139U, AIE_ERROR_LOCK), +}; + +static const struct aie_event_category aie_ml_shim_tile_event_cat[] = { + EVENT_CATEGORY(64U, AIE_ERROR_BUS), + EVENT_CATEGORY(65U, AIE_ERROR_STREAM), + EVENT_CATEGORY(66U, AIE_ERROR_STREAM), + EVENT_CATEGORY(67U, AIE_ERROR_BUS), + EVENT_CATEGORY(68U, AIE_ERROR_BUS), + EVENT_CATEGORY(69U, AIE_ERROR_BUS), + EVENT_CATEGORY(70U, AIE_ERROR_BUS), + EVENT_CATEGORY(71U, AIE_ERROR_BUS), + EVENT_CATEGORY(72U, AIE_ERROR_DMA), + EVENT_CATEGORY(73U, AIE_ERROR_DMA), + EVENT_CATEGORY(74U, AIE_ERROR_LOCK), +}; + +static enum aie_error_category +aie_get_error_category(u8 row, u8 event_id, enum aie_module_type mod_type) +{ + const struct aie_event_category *lut; + int num_entry; + int i; + + switch (mod_type) { + case AIE_PL_MOD: + lut = aie_ml_shim_tile_event_cat; + num_entry = ARRAY_SIZE(aie_ml_shim_tile_event_cat); + break; + case AIE_CORE_MOD: + lut = aie_ml_core_event_cat; + num_entry = ARRAY_SIZE(aie_ml_core_event_cat); + break; + case AIE_MEM_MOD: + if (row == 1) { + lut = aie_ml_mem_tile_event_cat; + num_entry = ARRAY_SIZE(aie_ml_mem_tile_event_cat); + } else { + lut = aie_ml_mem_event_cat; + num_entry = ARRAY_SIZE(aie_ml_mem_event_cat); + } + break; + default: + return AIE_ERROR_UNKNOWN; + } + + for (i = 0; i < num_entry; i++) { + if (event_id != lut[i].event_id) + continue; + + return lut[i].category; + } + + return AIE_ERROR_UNKNOWN; +} + +static u32 aie2_error_backtrack(struct amdxdna_dev_hdl *ndev, void *err_info, u32 num_err) +{ + struct aie_error *errs = err_info; + u32 err_col = 0; /* assume that AIE has less than 32 columns */ + int i; + + /* Get err column bitmap */ + for (i = 0; i < num_err; i++) { + struct aie_error *err = &errs[i]; + enum aie_error_category cat; + + cat = aie_get_error_category(err->row, err->event_id, err->mod_type); + XDNA_ERR(ndev->xdna, "Row: %d, Col: %d, module %d, event ID %d, category %d", + err->row, err->col, err->mod_type, + err->event_id, cat); + + if (err->col >= 32) { + XDNA_WARN(ndev->xdna, "Invalid column number"); + break; + } + + err_col |= (1 << err->col); + } + + return err_col; +} + +static int aie2_error_async_cb(void *handle, const u32 *data, size_t size) +{ + struct async_event_msg_resp *resp; + struct async_event *e = handle; + + if (data) { + resp = (struct async_event_msg_resp *)data; + e->resp.type = resp->type; + wmb(); /* Update status in the end, so that no lock for here */ + e->resp.status = resp->status; + } + queue_work(e->wq, &e->work); + return 0; +} + +static int aie2_error_event_send(struct async_event *e) +{ + drm_clflush_virt_range(e->buf, e->size); /* device can access */ + return aie2_register_asyn_event_msg(e->ndev, e->addr, e->size, e, + aie2_error_async_cb); +} + +static void aie2_error_worker(struct work_struct *err_work) +{ + struct aie_err_info *info; + struct amdxdna_dev *xdna; + struct async_event *e; + u32 max_err; + u32 err_col; + + e = container_of(err_work, struct async_event, work); + + xdna = e->ndev->xdna; + + if (e->resp.status == MAX_AIE2_STATUS_CODE) + return; + + e->resp.status = MAX_AIE2_STATUS_CODE; + + print_hex_dump_debug("AIE error: ", DUMP_PREFIX_OFFSET, 16, 4, + e->buf, 0x100, false); + + info = (struct aie_err_info *)e->buf; + XDNA_DBG(xdna, "Error count %d return code %d", info->err_cnt, info->ret_code); + + max_err = (e->size - sizeof(*info)) / sizeof(struct aie_error); + if (unlikely(info->err_cnt > max_err)) { + WARN_ONCE(1, "Error count too large %d\n", info->err_cnt); + return; + } + err_col = aie2_error_backtrack(e->ndev, info->payload, info->err_cnt); + if (!err_col) { + XDNA_WARN(xdna, "Did not get error column"); + return; + } + + mutex_lock(&xdna->dev_lock); + /* Re-sent this event to firmware */ + if (aie2_error_event_send(e)) + XDNA_WARN(xdna, "Unable to register async event"); + mutex_unlock(&xdna->dev_lock); +} + +int aie2_error_async_events_send(struct amdxdna_dev_hdl *ndev) +{ + struct amdxdna_dev *xdna = ndev->xdna; + struct async_event *e; + int i, ret; + + drm_WARN_ON(&xdna->ddev, !mutex_is_locked(&xdna->dev_lock)); + for (i = 0; i < ndev->async_events->event_cnt; i++) { + e = &ndev->async_events->event[i]; + ret = aie2_error_event_send(e); + if (ret) + return ret; + } + + return 0; +} + +void aie2_error_async_events_free(struct amdxdna_dev_hdl *ndev) +{ + struct amdxdna_dev *xdna = ndev->xdna; + struct async_events *events; + + events = ndev->async_events; + + mutex_unlock(&xdna->dev_lock); + destroy_workqueue(events->wq); + mutex_lock(&xdna->dev_lock); + + dma_free_noncoherent(xdna->ddev.dev, events->size, events->buf, + events->addr, DMA_FROM_DEVICE); + kfree(events); +} + +int aie2_error_async_events_alloc(struct amdxdna_dev_hdl *ndev) +{ + struct amdxdna_dev *xdna = ndev->xdna; + u32 total_col = ndev->total_col; + u32 total_size = ASYNC_BUF_SIZE * total_col; + struct async_events *events; + int i, ret; + + events = kzalloc(struct_size(events, event, total_col), GFP_KERNEL); + if (!events) + return -ENOMEM; + + events->buf = dma_alloc_noncoherent(xdna->ddev.dev, total_size, &events->addr, + DMA_FROM_DEVICE, GFP_KERNEL); + if (!events->buf) { + ret = -ENOMEM; + goto free_events; + } + events->size = total_size; + events->event_cnt = total_col; + + events->wq = alloc_ordered_workqueue("async_wq", 0); + if (!events->wq) { + ret = -ENOMEM; + goto free_buf; + } + + for (i = 0; i < events->event_cnt; i++) { + struct async_event *e = &events->event[i]; + u32 offset = i * ASYNC_BUF_SIZE; + + e->ndev = ndev; + e->wq = events->wq; + e->buf = &events->buf[offset]; + e->addr = events->addr + offset; + e->size = ASYNC_BUF_SIZE; + e->resp.status = MAX_AIE2_STATUS_CODE; + INIT_WORK(&e->work, aie2_error_worker); + } + + ndev->async_events = events; + + XDNA_DBG(xdna, "Async event count %d, buf total size 0x%x", + events->event_cnt, events->size); + return 0; + +free_buf: + dma_free_noncoherent(xdna->ddev.dev, events->size, events->buf, + events->addr, DMA_FROM_DEVICE); +free_events: + kfree(events); + return ret; +} diff --git a/drivers/accel/amdxdna/aie2_message.c b/drivers/accel/amdxdna/aie2_message.c index db62954eb378..eb7e27045213 100644 --- a/drivers/accel/amdxdna/aie2_message.c +++ b/drivers/accel/amdxdna/aie2_message.c @@ -308,6 +308,25 @@ int aie2_map_host_buf(struct amdxdna_dev_hdl *ndev, u32 context_id, u64 addr, u6 return 0; } +int aie2_register_asyn_event_msg(struct amdxdna_dev_hdl *ndev, dma_addr_t addr, u32 size, + void *handle, int (*cb)(void*, const u32 *, size_t)) +{ + struct async_event_msg_req req = { 0 }; + struct xdna_mailbox_msg msg = { + .send_data = (u8 *)&req, + .send_size = sizeof(req), + .handle = handle, + .opcode = MSG_OP_REGISTER_ASYNC_EVENT_MSG, + .notify_cb = cb, + }; + + req.buf_addr = addr; + req.buf_size = size; + + XDNA_DBG(ndev->xdna, "Register addr 0x%llx size 0x%x", addr, size); + return xdna_mailbox_send_msg(ndev->mgmt_chann, &msg, TX_TIMEOUT); +} + int aie2_config_cu(struct amdxdna_hwctx *hwctx) { struct mailbox_channel *chann = hwctx->priv->mbox_chann; diff --git a/drivers/accel/amdxdna/aie2_pci.c b/drivers/accel/amdxdna/aie2_pci.c index 803ebb237971..5467aabe7308 100644 --- a/drivers/accel/amdxdna/aie2_pci.c +++ b/drivers/accel/amdxdna/aie2_pci.c @@ -180,6 +180,15 @@ static int aie2_mgmt_fw_init(struct amdxdna_dev_hdl *ndev) return ret; } + if (!ndev->async_events) + return 0; + + ret = aie2_error_async_events_send(ndev); + if (ret) { + XDNA_ERR(ndev->xdna, "Send async events failed"); + return ret; + } + return 0; } @@ -469,9 +478,30 @@ static int aie2_init(struct amdxdna_dev *xdna) goto stop_hw; } + ret = aie2_error_async_events_alloc(ndev); + if (ret) { + XDNA_ERR(xdna, "Allocate async events failed, ret %d", ret); + goto stop_hw; + } + + ret = aie2_error_async_events_send(ndev); + if (ret) { + XDNA_ERR(xdna, "Send async events failed, ret %d", ret); + goto async_event_free; + } + + /* Issue a command to make sure firmware handled async events */ + ret = aie2_query_firmware_version(ndev, &ndev->xdna->fw_ver); + if (ret) { + XDNA_ERR(xdna, "Re-query firmware version failed"); + goto async_event_free; + } + release_firmware(fw); return 0; +async_event_free: + aie2_error_async_events_free(ndev); stop_hw: aie2_hw_stop(xdna); disable_sva: @@ -487,8 +517,10 @@ release_fw: static void aie2_fini(struct amdxdna_dev *xdna) { struct pci_dev *pdev = to_pci_dev(xdna->ddev.dev); + struct amdxdna_dev_hdl *ndev = xdna->dev_handle; aie2_hw_stop(xdna); + aie2_error_async_events_free(ndev); iommu_dev_disable_feature(&pdev->dev, IOMMU_DEV_FEAT_SVA); pci_free_irq_vectors(pdev); } diff --git a/drivers/accel/amdxdna/aie2_pci.h b/drivers/accel/amdxdna/aie2_pci.h index 72691c9eebd7..4422dd6c985e 100644 --- a/drivers/accel/amdxdna/aie2_pci.h +++ b/drivers/accel/amdxdna/aie2_pci.h @@ -170,6 +170,7 @@ struct amdxdna_dev_hdl { /* Mailbox and the management channel */ struct mailbox *mbox; struct mailbox_channel *mgmt_chann; + struct async_events *async_events; }; #define DEFINE_BAR_OFFSET(reg_name, bar, reg_addr) \ @@ -210,6 +211,12 @@ struct psp_device *aie2m_psp_create(struct drm_device *ddev, struct psp_config * int aie2_psp_start(struct psp_device *psp); void aie2_psp_stop(struct psp_device *psp); +/* aie2_error.c */ +int aie2_error_async_events_alloc(struct amdxdna_dev_hdl *ndev); +void aie2_error_async_events_free(struct amdxdna_dev_hdl *ndev); +int aie2_error_async_events_send(struct amdxdna_dev_hdl *ndev); +int aie2_error_async_msg_thread(void *data); + /* aie2_message.c */ int aie2_suspend_fw(struct amdxdna_dev_hdl *ndev); int aie2_resume_fw(struct amdxdna_dev_hdl *ndev); @@ -224,6 +231,8 @@ int aie2_query_firmware_version(struct amdxdna_dev_hdl *ndev, int aie2_create_context(struct amdxdna_dev_hdl *ndev, struct amdxdna_hwctx *hwctx); 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_register_asyn_event_msg(struct amdxdna_dev_hdl *ndev, dma_addr_t addr, u32 size, + void *handle, int (*cb)(void*, const u32 *, size_t)); int aie2_config_cu(struct amdxdna_hwctx *hwctx); int aie2_execbuf(struct amdxdna_hwctx *hwctx, struct amdxdna_sched_job *job, int (*notify_cb)(void *, const u32 *, size_t)); 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