On 10/21/2024 10:19 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].
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 v4:
- Fix lockdep errors
- Use __u* structure for struct aie_error
One nit, when you send the next version would you please either To: or
Cc: me on the entire series? I only get pieces in my inbox which is
mildly annoying on my end.
Looks like we are getting close here. One procedural question I have,
do you have commit permissions to drm-misc?
I applied the series to drm-misc-next and tried to build. Got the
following errors -
CC [M] drivers/accel/amdxdna/aie2_ctx.o
CC [M] drivers/accel/amdxdna/aie2_error.o
CC [M] drivers/accel/amdxdna/aie2_message.o
CC [M] drivers/accel/amdxdna/aie2_pci.o
CC [M] drivers/accel/amdxdna/aie2_psp.o
CC [M] drivers/accel/amdxdna/aie2_smu.o
CC [M] drivers/accel/amdxdna/aie2_solver.o
CC [M] drivers/accel/amdxdna/amdxdna_ctx.o
CC [M] drivers/accel/amdxdna/amdxdna_gem.o
CC [M] drivers/accel/amdxdna/amdxdna_mailbox.o
CC [M] drivers/accel/amdxdna/amdxdna_mailbox_helper.o
CC [M] drivers/accel/amdxdna/amdxdna_pci_drv.o
CC [M] drivers/accel/amdxdna/amdxdna_sysfs.o
CC [M] drivers/accel/amdxdna/npu1_regs.o
CC [M] drivers/accel/amdxdna/npu2_regs.o
CC [M] drivers/accel/amdxdna/npu4_regs.o
CC [M] drivers/accel/amdxdna/npu5_regs.o
AR drivers/base/firmware_loader/built-in.a
AR drivers/base/built-in.a
In file included from drivers/accel/amdxdna/aie2_message.c:19:
drivers/accel/amdxdna/amdxdna_ctx.h: In function ‘amdxdna_cmd_get_op’:
drivers/accel/amdxdna/amdxdna_ctx.h:112:16: error: implicit declaration
of function ‘FIELD_GET’ [-Werror=implicit-function-declaration]
112 | return FIELD_GET(AMDXDNA_CMD_OPCODE, cmd->header);
| ^~~~~~~~~
In file included from drivers/accel/amdxdna/amdxdna_gem.c:15:
drivers/accel/amdxdna/amdxdna_ctx.h: In function ‘amdxdna_cmd_get_op’:
drivers/accel/amdxdna/amdxdna_ctx.h:112:16: error: implicit declaration
of function ‘FIELD_GET’ [-Werror=implicit-function-declaration]
112 | return FIELD_GET(AMDXDNA_CMD_OPCODE, cmd->header);
| ^~~~~~~~~
In file included from drivers/accel/amdxdna/aie2_psp.c:11:
drivers/accel/amdxdna/aie2_psp.c: In function ‘psp_exec’:
drivers/accel/amdxdna/aie2_psp.c:62:34: error: implicit declaration of
function ‘FIELD_GET’ [-Werror=implicit-function-declaration]
62 | FIELD_GET(PSP_STATUS_READY,
ready),
| ^~~~~~~~~
./include/linux/iopoll.h:47:21: note: in definition of macro
‘read_poll_timeout’
47 | if (cond) \
| ^~~~
drivers/accel/amdxdna/aie2_psp.c:61:15: note: in expansion of macro
‘readx_poll_timeout’
61 | ret = readx_poll_timeout(readl, PSP_REG(psp,
PSP_STATUS_REG), ready,
| ^~~~~~~~~~~~~~~~~~
drivers/accel/amdxdna/amdxdna_ctx.h: In function ‘amdxdna_cmd_set_state’:
drivers/accel/amdxdna/amdxdna_ctx.h:121:24: error: implicit declaration
of function ‘FIELD_PREP’ [-Werror=implicit-function-declaration]
121 | cmd->header |= FIELD_PREP(AMDXDNA_CMD_STATE, s);
| ^~~~~~~~~~
drivers/accel/amdxdna/amdxdna_ctx.h: In function ‘amdxdna_cmd_set_state’:
drivers/accel/amdxdna/amdxdna_ctx.h:121:24: error: implicit declaration
of function ‘FIELD_PREP’ [-Werror=implicit-function-declaration]
121 | cmd->header |= FIELD_PREP(AMDXDNA_CMD_STATE, s);
| ^~~~~~~~~~
In file included from drivers/accel/amdxdna/aie2_pci.c:22:
drivers/accel/amdxdna/amdxdna_ctx.h: In function ‘amdxdna_cmd_get_op’:
drivers/accel/amdxdna/amdxdna_ctx.h:112:16: error: implicit declaration
of function ‘FIELD_GET’ [-Werror=implicit-function-declaration]
112 | return FIELD_GET(AMDXDNA_CMD_OPCODE, cmd->header);
| ^~~~~~~~~
In file included from drivers/accel/amdxdna/aie2_ctx.c:18:
drivers/accel/amdxdna/amdxdna_ctx.h: In function ‘amdxdna_cmd_get_op’:
drivers/accel/amdxdna/amdxdna_ctx.h:112:16: error: implicit declaration
of function ‘FIELD_GET’ [-Werror=implicit-function-declaration]
112 | return FIELD_GET(AMDXDNA_CMD_OPCODE, cmd->header);
| ^~~~~~~~~
drivers/accel/amdxdna/amdxdna_ctx.h: In function ‘amdxdna_cmd_set_state’:
drivers/accel/amdxdna/amdxdna_ctx.h:121:24: error: implicit declaration
of function ‘FIELD_PREP’ [-Werror=implicit-function-declaration]
121 | cmd->header |= FIELD_PREP(AMDXDNA_CMD_STATE, s);
| ^~~~~~~~~~
In file included from drivers/accel/amdxdna/amdxdna_ctx.c:16:
drivers/accel/amdxdna/amdxdna_ctx.h: In function ‘amdxdna_cmd_get_op’:
drivers/accel/amdxdna/amdxdna_ctx.h:112:16: error: implicit declaration
of function ‘FIELD_GET’ [-Werror=implicit-function-declaration]
112 | return FIELD_GET(AMDXDNA_CMD_OPCODE, cmd->header);
| ^~~~~~~~~
cc1: all warnings being treated as errors
drivers/accel/amdxdna/amdxdna_ctx.h: In function ‘amdxdna_cmd_set_state’:
drivers/accel/amdxdna/amdxdna_ctx.h:121:24: error: implicit declaration
of function ‘FIELD_PREP’ [-Werror=implicit-function-declaration]
121 | cmd->header |= FIELD_PREP(AMDXDNA_CMD_STATE, s);
| ^~~~~~~~~~
drivers/accel/amdxdna/aie2_ctx.c: In function ‘aie2_hwctx_restart’:
drivers/accel/amdxdna/aie2_ctx.c:114:9: error: too few arguments to
function ‘drm_sched_start’
114 | drm_sched_start(&hwctx->priv->sched);
| ^~~~~~~~~~~~~~~
In file included from ./include/trace/events/amdxdna.h:12,
from drivers/accel/amdxdna/aie2_ctx.c:13:
./include/drm/gpu_scheduler.h:593:6: note: declared here
593 | void drm_sched_start(struct drm_gpu_scheduler *sched, int errno);
| ^~~~~~~~~~~~~~~
make[5]: *** [scripts/Makefile.build:229:
drivers/accel/amdxdna/aie2_psp.o] Error 1
make[5]: *** Waiting for unfinished jobs....
drivers/accel/amdxdna/amdxdna_ctx.h: In function ‘amdxdna_cmd_set_state’:
drivers/accel/amdxdna/amdxdna_ctx.h:121:24: error: implicit declaration
of function ‘FIELD_PREP’ [-Werror=implicit-function-declaration]
121 | cmd->header |= FIELD_PREP(AMDXDNA_CMD_STATE, s);
| ^~~~~~~~~~
In file included from drivers/accel/amdxdna/amdxdna_pci_drv.c:18:
drivers/accel/amdxdna/amdxdna_ctx.h: In function ‘amdxdna_cmd_get_op’:
drivers/accel/amdxdna/amdxdna_ctx.h:112:16: error: implicit declaration
of function ‘FIELD_GET’ [-Werror=implicit-function-declaration]
112 | return FIELD_GET(AMDXDNA_CMD_OPCODE, cmd->header);
| ^~~~~~~~~
cc1: all warnings being treated as errors
make[5]: *** [scripts/Makefile.build:229:
drivers/accel/amdxdna/aie2_ctx.o] Error 1
drivers/accel/amdxdna/amdxdna_ctx.h: In function ‘amdxdna_cmd_set_state’:
drivers/accel/amdxdna/amdxdna_ctx.h:121:24: error: implicit declaration
of function ‘FIELD_PREP’ [-Werror=implicit-function-declaration]
121 | cmd->header |= FIELD_PREP(AMDXDNA_CMD_STATE, s);
| ^~~~~~~~~~
drivers/accel/amdxdna/amdxdna_mailbox.c: In function
‘xdna_mailbox_send_msg’:
drivers/accel/amdxdna/amdxdna_mailbox.c:444:26: error: implicit
declaration of function ‘FIELD_PREP’ [-Werror=implicit-function-declaration]
444 | header->sz_ver = FIELD_PREP(MSG_BODY_SZ, msg->send_size) |
| ^~~~~~~~~~
You also have the following checkpatch issues -
WARNING: 'Disalbe' may be misspelled - perhaps 'Disable'?
#1646: FILE: drivers/accel/amdxdna/amdxdna_mailbox.c:553:
+ /* Disalbe an irq and wait. This might sleep. */
^^^^^^^
WARNING: 'splite' may be misspelled - perhaps 'split'?
#1695: FILE: drivers/accel/amdxdna/amdxdna_mailbox.h:21:
+ * The mailbox will splite the sending data in to multiple firmware
message if
^^^^^^
WARNING: 'miliseconds' may be misspelled - perhaps 'milliseconds'?
#1875: FILE: drivers/accel/amdxdna/amdxdna_mailbox_helper.h:9:
+#define TX_TIMEOUT 2000 /* miliseconds */
^^^^^^^^^^^
WARNING: 'miliseconds' may be misspelled - perhaps 'milliseconds'?
#1876: FILE: drivers/accel/amdxdna/amdxdna_mailbox_helper.h:10:
+#define RX_TIMEOUT 5000 /* miliseconds */
^^^^^^^^^^^
total: 0 errors, 4 warnings, 0 checks, 1916 lines checked
NOTE: For some of the reported defects, checkpatch may be able to
mechanically convert to the typical style using --fix or
--fix-inplace.
0003-accel-amdxdna-Support-hardware-mailbox.patch has style problems,
please review.
0007-accel-amdxdna-Add-command-execution.patch
----------------------------------------------
WARNING: 'miliseconds' may be misspelled - perhaps 'milliseconds'?
#59: FILE: drivers/accel/amdxdna/aie2_ctx.c:27:
+#define HWCTX_MAX_TIMEOUT 60000 /* miliseconds */
^^^^^^^^^^^
WARNING: 'reverve' may be misspelled - perhaps 'reserve'?
#612: FILE: drivers/accel/amdxdna/aie2_ctx.c:779:
+ XDNA_WARN(xdna, "Failed to reverve fence, ret %d", ret);
^^^^^^^
WARNING: 'Exectuion' may be misspelled - perhaps 'Execution'?
#1899: FILE: drivers/accel/amdxdna/amdxdna_pci_drv.c:139:
+ /* Exectuion */
^^^^^^^^^
WARNING: 'exectuion' may be misspelled - perhaps 'execution'?
#2113: FILE: include/uapi/drm/amdxdna_accel.h:239:
+ * struct amdxdna_drm_wait_cmd - Wait exectuion command.
^^^^^^^^^
total: 0 errors, 10 warnings, 0 checks, 1983 lines checked
NOTE: For some of the reported defects, checkpatch may be able to
mechanically convert to the typical style using --fix or
--fix-inplace.
0007-accel-amdxdna-Add-command-execution.patch has style problems,
please review.
0008-accel-amdxdna-Add-suspend-and-resume.patch
-----------------------------------------------
WARNING: 'miliseconds' may be misspelled - perhaps 'milliseconds'?
#163: FILE: drivers/accel/amdxdna/amdxdna_pci_drv.c:22:
+#define AMDXDNA_AUTOSUSPEND_DELAY 5000 /* miliseconds */
^^^^^^^^^^^
total: 0 errors, 1 warnings, 0 checks, 302 lines checked
NOTE: For some of the reported defects, checkpatch may be able to
mechanically convert to the typical style using --fix or
--fix-inplace.
0008-accel-amdxdna-Add-suspend-and-resume.patch has style problems,
please review.
-Jeff
