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Message-ID: <292c06d0-b96a-b5b5-5d82-e74b82bbb6de@quicinc.com>
Date: Fri, 9 Aug 2024 09:21:06 -0600
From: Jeffrey Hugo <quic_jhugo@...cinc.com>
To: Lizhi Hou <lizhi.hou@....com>, <ogabbay@...nel.org>,
<dri-devel@...ts.freedesktop.org>
CC: <linux-kernel@...r.kernel.org>, <min.ma@....com>, <max.zhen@....com>,
<sonal.santan@....com>, <king.tam@....com>
Subject: Re: [PATCH V2 00/10] AMD XDNA driver
On 8/5/2024 11:39 AM, Lizhi Hou wrote:
> This patchset introduces a new Linux Kernel Driver, amdxdna for AMD NPUs.
> The driver is based on Linux accel subsystem.
>
> NPU (Neural Processing Unit) is an AI inference accelerator integrated
> into AMD client CPUs. NPU enables efficient execution of Machine Learning
> applications like CNNs, LLMs, etc. NPU is based on AMD XDNA
> architecture [1].
>
> AMD NPU consists of the following components:
>
> - Tiled array of AMD AI Engine processors.
> - Micro Controller which runs the NPU Firmware responsible for
> command processing, AIE array configuration, and execution management.
> - PCI EP for host control of the NPU device.
> - Interconnect for connecting the NPU components together.
> - SRAM for use by the NPU Firmware.
> - Address translation hardware for protected host memory access by the
> NPU.
>
> NPU supports multiple concurrent fully isolated contexts. Concurrent
> contexts may be bound to AI Engine array spatially and or temporarily.
>
> The driver is licensed under GPL-2.0 except for UAPI header which is
> licensed GPL-2.0 WITH Linux-syscall-note.
>
> User mode driver stack consists of XRT [2] and AMD AIE Plugin for IREE [3].
Is there a special branch with the code? I don't see any of the uAPI in
either project when searching for the ioctl codes or ioctl structures.
>
> The firmware for the NPU is distributed as a closed source binary, and has
> already been pushed to the DRM firmware repository [4].
>
> [1] https://www.amd.com/en/technologies/xdna.html
> [2] https://github.com/Xilinx/XRT
> [3] https://github.com/nod-ai/iree-amd-aie
> [4] https://gitlab.freedesktop.org/drm/firmware/-/tree/amd-ipu-staging/amdnpu
>
> Changes since v1:
> - Remove some inline defines
> - Minor changes based code review comments
>
> Lizhi Hou (10):
> accel/amdxdna: Add a new driver for AMD AI Engine
> accel/amdxdna: Support hardware mailbox
> accel/amdxdna: Add hardware resource solver
> accel/amdxdna: Add hardware context
> accel/amdxdna: Add GEM buffer object management
> accel/amdxdna: Add command execution
> accel/amdxdna: Add suspend and resume
> accel/amdxdna: Add error handling
> accel/amdxdna: Add query functions
> accel/amdxdna: Add firmware debug buffer support
>
> MAINTAINERS | 9 +
> drivers/accel/Kconfig | 1 +
> drivers/accel/Makefile | 1 +
> drivers/accel/amdxdna/Kconfig | 15 +
> drivers/accel/amdxdna/Makefile | 22 +
> drivers/accel/amdxdna/TODO | 4 +
> drivers/accel/amdxdna/aie2_ctx.c | 949 ++++++++++++++++++
> drivers/accel/amdxdna/aie2_error.c | 349 +++++++
> drivers/accel/amdxdna/aie2_message.c | 775 ++++++++++++++
> drivers/accel/amdxdna/aie2_msg_priv.h | 372 +++++++
> drivers/accel/amdxdna/aie2_pci.c | 756 ++++++++++++++
> drivers/accel/amdxdna/aie2_pci.h | 264 +++++
> drivers/accel/amdxdna/aie2_psp.c | 137 +++
> drivers/accel/amdxdna/aie2_smu.c | 112 +++
> drivers/accel/amdxdna/aie2_solver.c | 329 ++++++
> drivers/accel/amdxdna/aie2_solver.h | 156 +++
> drivers/accel/amdxdna/amdxdna_ctx.c | 597 +++++++++++
> drivers/accel/amdxdna/amdxdna_ctx.h | 165 +++
> drivers/accel/amdxdna/amdxdna_drm.c | 172 ++++
> drivers/accel/amdxdna/amdxdna_drm.h | 114 +++
> drivers/accel/amdxdna/amdxdna_gem.c | 700 +++++++++++++
> drivers/accel/amdxdna/amdxdna_gem.h | 73 ++
> drivers/accel/amdxdna/amdxdna_mailbox.c | 582 +++++++++++
> drivers/accel/amdxdna/amdxdna_mailbox.h | 124 +++
> .../accel/amdxdna/amdxdna_mailbox_helper.c | 50 +
> .../accel/amdxdna/amdxdna_mailbox_helper.h | 43 +
> drivers/accel/amdxdna/amdxdna_pci_drv.c | 234 +++++
> drivers/accel/amdxdna/amdxdna_pci_drv.h | 31 +
> drivers/accel/amdxdna/amdxdna_sysfs.c | 58 ++
> drivers/accel/amdxdna/npu1_regs.c | 94 ++
> drivers/accel/amdxdna/npu2_regs.c | 111 ++
> drivers/accel/amdxdna/npu4_regs.c | 111 ++
> drivers/accel/amdxdna/npu5_regs.c | 111 ++
> include/trace/events/amdxdna.h | 101 ++
> include/uapi/drm/amdxdna_accel.h | 456 +++++++++
> 35 files changed, 8178 insertions(+)
> create mode 100644 drivers/accel/amdxdna/Kconfig
> create mode 100644 drivers/accel/amdxdna/Makefile
> create mode 100644 drivers/accel/amdxdna/TODO
> create mode 100644 drivers/accel/amdxdna/aie2_ctx.c
> create mode 100644 drivers/accel/amdxdna/aie2_error.c
> create mode 100644 drivers/accel/amdxdna/aie2_message.c
> create mode 100644 drivers/accel/amdxdna/aie2_msg_priv.h
> create mode 100644 drivers/accel/amdxdna/aie2_pci.c
> create mode 100644 drivers/accel/amdxdna/aie2_pci.h
> create mode 100644 drivers/accel/amdxdna/aie2_psp.c
> create mode 100644 drivers/accel/amdxdna/aie2_smu.c
> create mode 100644 drivers/accel/amdxdna/aie2_solver.c
> create mode 100644 drivers/accel/amdxdna/aie2_solver.h
> create mode 100644 drivers/accel/amdxdna/amdxdna_ctx.c
> create mode 100644 drivers/accel/amdxdna/amdxdna_ctx.h
> create mode 100644 drivers/accel/amdxdna/amdxdna_drm.c
> create mode 100644 drivers/accel/amdxdna/amdxdna_drm.h
> create mode 100644 drivers/accel/amdxdna/amdxdna_gem.c
> create mode 100644 drivers/accel/amdxdna/amdxdna_gem.h
> create mode 100644 drivers/accel/amdxdna/amdxdna_mailbox.c
> create mode 100644 drivers/accel/amdxdna/amdxdna_mailbox.h
> create mode 100644 drivers/accel/amdxdna/amdxdna_mailbox_helper.c
> create mode 100644 drivers/accel/amdxdna/amdxdna_mailbox_helper.h
> create mode 100644 drivers/accel/amdxdna/amdxdna_pci_drv.c
> create mode 100644 drivers/accel/amdxdna/amdxdna_pci_drv.h
> create mode 100644 drivers/accel/amdxdna/amdxdna_sysfs.c
> create mode 100644 drivers/accel/amdxdna/npu1_regs.c
> create mode 100644 drivers/accel/amdxdna/npu2_regs.c
> create mode 100644 drivers/accel/amdxdna/npu4_regs.c
> create mode 100644 drivers/accel/amdxdna/npu5_regs.c
> create mode 100644 include/trace/events/amdxdna.h
> create mode 100644 include/uapi/drm/amdxdna_accel.h
>
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