diff options
Diffstat (limited to 'drivers/accel/amdxdna/amdxdna_ctx.h')
| -rw-r--r-- | drivers/accel/amdxdna/amdxdna_ctx.h | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/drivers/accel/amdxdna/amdxdna_ctx.h b/drivers/accel/amdxdna/amdxdna_ctx.h new file mode 100644 index 000000000000..f0a4a8586d85 --- /dev/null +++ b/drivers/accel/amdxdna/amdxdna_ctx.h @@ -0,0 +1,165 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2022-2024, Advanced Micro Devices, Inc. + */ + +#ifndef _AMDXDNA_CTX_H_ +#define _AMDXDNA_CTX_H_ + +#include <linux/bitfield.h> + +#include "amdxdna_gem.h" + +struct amdxdna_hwctx_priv; + +enum ert_cmd_opcode { + ERT_START_CU = 0, + ERT_CMD_CHAIN = 19, + ERT_START_NPU = 20, +}; + +enum ert_cmd_state { + ERT_CMD_STATE_INVALID, + ERT_CMD_STATE_NEW, + ERT_CMD_STATE_QUEUED, + ERT_CMD_STATE_RUNNING, + ERT_CMD_STATE_COMPLETED, + ERT_CMD_STATE_ERROR, + ERT_CMD_STATE_ABORT, + ERT_CMD_STATE_SUBMITTED, + ERT_CMD_STATE_TIMEOUT, + ERT_CMD_STATE_NORESPONSE, +}; + +/* + * Interpretation of the beginning of data payload for ERT_START_NPU in + * amdxdna_cmd. The rest of the payload in amdxdna_cmd is regular kernel args. + */ +struct amdxdna_cmd_start_npu { + u64 buffer; /* instruction buffer address */ + u32 buffer_size; /* size of buffer in bytes */ + u32 prop_count; /* properties count */ + u32 prop_args[]; /* properties and regular kernel arguments */ +}; + +/* + * Interpretation of the beginning of data payload for ERT_CMD_CHAIN in + * amdxdna_cmd. The rest of the payload in amdxdna_cmd is cmd BO handles. + */ +struct amdxdna_cmd_chain { + u32 command_count; + u32 submit_index; + u32 error_index; + u32 reserved[3]; + u64 data[] __counted_by(command_count); +}; + +/* Exec buffer command header format */ +#define AMDXDNA_CMD_STATE GENMASK(3, 0) +#define AMDXDNA_CMD_EXTRA_CU_MASK GENMASK(11, 10) +#define AMDXDNA_CMD_COUNT GENMASK(22, 12) +#define AMDXDNA_CMD_OPCODE GENMASK(27, 23) +struct amdxdna_cmd { + u32 header; + u32 data[]; +}; + +struct amdxdna_hwctx { + struct amdxdna_client *client; + struct amdxdna_hwctx_priv *priv; + char *name; + + u32 id; + u32 max_opc; + u32 num_tiles; + u32 mem_size; + u32 fw_ctx_id; + u32 col_list_len; + u32 *col_list; + u32 start_col; + u32 num_col; +#define HWCTX_STAT_INIT 0 +#define HWCTX_STAT_READY 1 +#define HWCTX_STAT_STOP 2 + u32 status; + u32 old_status; + + struct amdxdna_qos_info qos; + struct amdxdna_hwctx_param_config_cu *cus; + u32 syncobj_hdl; + + atomic64_t job_submit_cnt; + atomic64_t job_free_cnt ____cacheline_aligned_in_smp; +}; + +#define drm_job_to_xdna_job(j) \ + container_of(j, struct amdxdna_sched_job, base) + +struct amdxdna_sched_job { + struct drm_sched_job base; + struct kref refcnt; + struct amdxdna_hwctx *hwctx; + struct mm_struct *mm; + /* The fence to notice DRM scheduler that job is done by hardware */ + struct dma_fence *fence; + /* user can wait on this fence */ + struct dma_fence *out_fence; + bool job_done; + u64 seq; + struct amdxdna_gem_obj *cmd_bo; + size_t bo_cnt; + struct drm_gem_object *bos[] __counted_by(bo_cnt); +}; + +static inline u32 +amdxdna_cmd_get_op(struct amdxdna_gem_obj *abo) +{ + struct amdxdna_cmd *cmd = abo->mem.kva; + + return FIELD_GET(AMDXDNA_CMD_OPCODE, cmd->header); +} + +static inline void +amdxdna_cmd_set_state(struct amdxdna_gem_obj *abo, enum ert_cmd_state s) +{ + struct amdxdna_cmd *cmd = abo->mem.kva; + + cmd->header &= ~AMDXDNA_CMD_STATE; + cmd->header |= FIELD_PREP(AMDXDNA_CMD_STATE, s); +} + +static inline enum ert_cmd_state +amdxdna_cmd_get_state(struct amdxdna_gem_obj *abo) +{ + struct amdxdna_cmd *cmd = abo->mem.kva; + + return FIELD_GET(AMDXDNA_CMD_STATE, cmd->header); +} + +void *amdxdna_cmd_get_payload(struct amdxdna_gem_obj *abo, u32 *size); +int amdxdna_cmd_get_cu_idx(struct amdxdna_gem_obj *abo); + +static inline u32 amdxdna_hwctx_col_map(struct amdxdna_hwctx *hwctx) +{ + return GENMASK(hwctx->start_col + hwctx->num_col - 1, + hwctx->start_col); +} + +void amdxdna_sched_job_cleanup(struct amdxdna_sched_job *job); +void amdxdna_hwctx_remove_all(struct amdxdna_client *client); +void amdxdna_hwctx_suspend(struct amdxdna_client *client); +void amdxdna_hwctx_resume(struct amdxdna_client *client); + +int amdxdna_cmd_submit(struct amdxdna_client *client, + u32 cmd_bo_hdls, u32 *arg_bo_hdls, u32 arg_bo_cnt, + u32 hwctx_hdl, u64 *seq); + +int amdxdna_cmd_wait(struct amdxdna_client *client, u32 hwctx_hdl, + u64 seq, u32 timeout); + +int amdxdna_drm_create_hwctx_ioctl(struct drm_device *dev, void *data, struct drm_file *filp); +int amdxdna_drm_config_hwctx_ioctl(struct drm_device *dev, void *data, struct drm_file *filp); +int amdxdna_drm_destroy_hwctx_ioctl(struct drm_device *dev, void *data, struct drm_file *filp); +int amdxdna_drm_submit_cmd_ioctl(struct drm_device *dev, void *data, struct drm_file *filp); + +#endif /* _AMDXDNA_CTX_H_ */ |