mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/
synced 2026-04-17 22:23:45 -04:00
35b137630f
VPU stands for Versatile Processing Unit and it's a CPU-integrated
inference accelerator for Computer Vision and Deep Learning
applications.
The VPU device consist of following components:
- Buttress - provides CPU to VPU integration, interrupt, frequency and
power management.
- Memory Management Unit (based on ARM MMU-600) - translates VPU to
host DMA addresses, isolates user workloads.
- RISC based microcontroller - executes firmware that provides job
execution API for the kernel-mode driver
- Neural Compute Subsystem (NCS) - does the actual work, provides
Compute and Copy engines.
- Network on Chip (NoC) - network fabric connecting all the components
This driver supports VPU IP v2.7 integrated into Intel Meteor Lake
client CPUs (14th generation).
Module sources are at drivers/accel/ivpu and module name is
"intel_vpu.ko".
This patch includes only very besic functionality:
- module, PCI device and IRQ initialization
- register definitions and low level register manipulation functions
- SET/GET_PARAM ioctls
- power up without firmware
Co-developed-by: Krystian Pradzynski <krystian.pradzynski@linux.intel.com>
Signed-off-by: Krystian Pradzynski <krystian.pradzynski@linux.intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20230117092723.60441-2-jacek.lawrynowicz@linux.intel.com
96 lines
2.5 KiB
C
96 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
|
|
/*
|
|
* Copyright (C) 2020-2023 Intel Corporation
|
|
*/
|
|
|
|
#ifndef __UAPI_IVPU_DRM_H__
|
|
#define __UAPI_IVPU_DRM_H__
|
|
|
|
#include "drm.h"
|
|
|
|
#if defined(__cplusplus)
|
|
extern "C" {
|
|
#endif
|
|
|
|
#define DRM_IVPU_DRIVER_MAJOR 1
|
|
#define DRM_IVPU_DRIVER_MINOR 0
|
|
|
|
#define DRM_IVPU_GET_PARAM 0x00
|
|
#define DRM_IVPU_SET_PARAM 0x01
|
|
|
|
#define DRM_IOCTL_IVPU_GET_PARAM \
|
|
DRM_IOWR(DRM_COMMAND_BASE + DRM_IVPU_GET_PARAM, struct drm_ivpu_param)
|
|
|
|
#define DRM_IOCTL_IVPU_SET_PARAM \
|
|
DRM_IOW(DRM_COMMAND_BASE + DRM_IVPU_SET_PARAM, struct drm_ivpu_param)
|
|
|
|
/**
|
|
* DOC: contexts
|
|
*
|
|
* VPU contexts have private virtual address space, job queues and priority.
|
|
* Each context is identified by an unique ID. Context is created on open().
|
|
*/
|
|
|
|
#define DRM_IVPU_PARAM_DEVICE_ID 0
|
|
#define DRM_IVPU_PARAM_DEVICE_REVISION 1
|
|
#define DRM_IVPU_PARAM_PLATFORM_TYPE 2
|
|
#define DRM_IVPU_PARAM_CORE_CLOCK_RATE 3
|
|
#define DRM_IVPU_PARAM_NUM_CONTEXTS 4
|
|
#define DRM_IVPU_PARAM_CONTEXT_BASE_ADDRESS 5
|
|
#define DRM_IVPU_PARAM_CONTEXT_PRIORITY 6
|
|
|
|
#define DRM_IVPU_PLATFORM_TYPE_SILICON 0
|
|
|
|
#define DRM_IVPU_CONTEXT_PRIORITY_IDLE 0
|
|
#define DRM_IVPU_CONTEXT_PRIORITY_NORMAL 1
|
|
#define DRM_IVPU_CONTEXT_PRIORITY_FOCUS 2
|
|
#define DRM_IVPU_CONTEXT_PRIORITY_REALTIME 3
|
|
|
|
/**
|
|
* struct drm_ivpu_param - Get/Set VPU parameters
|
|
*/
|
|
struct drm_ivpu_param {
|
|
/**
|
|
* @param:
|
|
*
|
|
* Supported params:
|
|
*
|
|
* %DRM_IVPU_PARAM_DEVICE_ID:
|
|
* PCI Device ID of the VPU device (read-only)
|
|
*
|
|
* %DRM_IVPU_PARAM_DEVICE_REVISION:
|
|
* VPU device revision (read-only)
|
|
*
|
|
* %DRM_IVPU_PARAM_PLATFORM_TYPE:
|
|
* Returns %DRM_IVPU_PLATFORM_TYPE_SILICON on real hardware or device specific
|
|
* platform type when executing on a simulator or emulator (read-only)
|
|
*
|
|
* %DRM_IVPU_PARAM_CORE_CLOCK_RATE:
|
|
* Current PLL frequency (read-only)
|
|
*
|
|
* %DRM_IVPU_PARAM_NUM_CONTEXTS:
|
|
* Maximum number of simultaneously existing contexts (read-only)
|
|
*
|
|
* %DRM_IVPU_PARAM_CONTEXT_BASE_ADDRESS:
|
|
* Lowest VPU virtual address available in the current context (read-only)
|
|
*
|
|
* %DRM_IVPU_PARAM_CONTEXT_PRIORITY:
|
|
* Value of current context scheduling priority (read-write).
|
|
* See DRM_IVPU_CONTEXT_PRIORITY_* for possible values.
|
|
*
|
|
*/
|
|
__u32 param;
|
|
|
|
/** @index: Index for params that have multiple instances */
|
|
__u32 index;
|
|
|
|
/** @value: Param value */
|
|
__u64 value;
|
|
};
|
|
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif /* __UAPI_IVPU_DRM_H__ */
|