Merge tag 'hisi-drivers-for-6.6' of https://github.com/hisilicon/linux-hisi into soc/drivers (bb2974ff) · Commits · EulixOS / Software / Kernel

Documentation/ABI/testing/sysfs-devices-platform-kunpeng_hccs

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		What: /sys/devices/platform/HISI04Bx:00/chipX/all_linked
		What: /sys/devices/platform/HISI04Bx:00/chipX/linked_full_lane
		What: /sys/devices/platform/HISI04Bx:00/chipX/crc_err_cnt
		Date: November 2023
		KernelVersion: 6.6
		Contact: Huisong Li <lihuisong@huawei.org>
		Description:
		The /sys/devices/platform/HISI04Bx:00/chipX/ directory
		contains read-only attributes exposing some summarization
		information of all HCCS ports under a specified chip.
		The X in 'chipX' indicates the Xth chip on platform.

		There are following attributes in this directory:

		================= ==== =========================================
		all_linked: (RO) if all enabled ports on this chip are
		linked (bool).
		linked_full_lane: (RO) if all linked ports on this chip are full
		lane (bool).
		crc_err_cnt: (RO) total CRC err count for all ports on this
		chip.
		================= ==== =========================================

		What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/all_linked
		What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/linked_full_lane
		What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/crc_err_cnt
		Date: November 2023
		KernelVersion: 6.6
		Contact: Huisong Li <lihuisong@huawei.org>
		Description:
		The /sys/devices/platform/HISI04Bx:00/chipX/dieY/ directory
		contains read-only attributes exposing some summarization
		information of all HCCS ports under a specified die.
		The Y in 'dieY' indicates the hardware id of the die on chip who
		has chip id X.

		There are following attributes in this directory:

		================= ==== =========================================
		all_linked: (RO) if all enabled ports on this die are
		linked (bool).
		linked_full_lane: (RO) if all linked ports on this die are full
		lane (bool).
		crc_err_cnt: (RO) total CRC err count for all ports on this
		die.
		================= ==== =========================================

		What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/type
		What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/lane_mode
		What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/enable
		What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/cur_lane_num
		What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/link_fsm
		What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/lane_mask
		What: /sys/devices/platform/HISI04Bx:00/chipX/dieY/hccsN/crc_err_cnt
		Date: November 2023
		KernelVersion: 6.6
		Contact: Huisong Li <lihuisong@huawei.org>
		Description:
		The /sys/devices/platform/HISI04Bx/chipX/dieX/hccsN/ directory
		contains read-only attributes exposing information about
		a HCCS port. The N value in 'hccsN' indicates this port id.
		The X in 'chipX' indicates the ID of the chip to which the
		HCCS port belongs. For example, X ranges from to 'n - 1' if the
		chip number on platform is n.
		The Y in 'dieY' indicates the hardware id of the die to which
		the hccs port belongs.
		Note: type, lane_mode and enable are fixed attributes on running
		platform.

		The HCCS port have the following attributes:

		============= ==== =============================================
		type: (RO) port type (string), e.g. HCCS-v1 -> H32
		lane_mode: (RO) the lane mode of this port (string), e.g. x8
		enable: (RO) indicate if this port is enabled (bool).
		cur_lane_num: (RO) current lane number of this port.
		link_fsm: (RO) link finite state machine of this port.
		lane_mask: (RO) current lane mask of this port, every bit
		indicates a lane.
		crc_err_cnt: (RO) CRC err count on this port.
		============= ==== =============================================

MAINTAINERS

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		@@ -9327,6 +9327,13 @@ W: https://www.hisilicon.com
		F: Documentation/devicetree/bindings/i2c/hisilicon,ascend910-i2c.yaml
		F: drivers/i2c/busses/i2c-hisi.c

		HISILICON KUNPENG SOC HCCS DRIVER
		M: Huisong Li <lihuisong@huawei.com>
		S: Maintained
		F: Documentation/ABI/testing/sysfs-devices-platform-kunpeng_hccs
		F: drivers/soc/hisilicon/kunpeng_hccs.c
		F: drivers/soc/hisilicon/kunpeng_hccs.h

		HISILICON LPC BUS DRIVER
		M: Jay Fang <f.fangjian@huawei.com>
		S: Maintained

drivers/soc/Kconfig

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		@@ -10,6 +10,7 @@ source "drivers/soc/bcm/Kconfig"
		source "drivers/soc/canaan/Kconfig"
		source "drivers/soc/fsl/Kconfig"
		source "drivers/soc/fujitsu/Kconfig"
		source "drivers/soc/hisilicon/Kconfig"
		source "drivers/soc/imx/Kconfig"
		source "drivers/soc/ixp4xx/Kconfig"
		source "drivers/soc/litex/Kconfig"

drivers/soc/Makefile

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		@@ -13,6 +13,7 @@ obj-$(CONFIG_MACH_DOVE) += dove/
		obj-y += fsl/
		obj-y += fujitsu/
		obj-$(CONFIG_ARCH_GEMINI) += gemini/
		obj-y += hisilicon/
		obj-y += imx/
		obj-y += ixp4xx/
		obj-$(CONFIG_SOC_XWAY) += lantiq/

drivers/soc/hisilicon/Kconfig

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		# SPDX-License-Identifier: GPL-2.0-only

		menu "Hisilicon SoC drivers"
		depends on ARCH_HISI \|\| COMPILE_TEST

		config KUNPENG_HCCS
		tristate "HCCS driver on Kunpeng SoC"
		depends on ACPI
		depends on ARM64 \|\| COMPILE_TEST
		help
		The Huawei Cache Coherence System (HCCS) is a multi-chip
		interconnection bus protocol.
		The performance of application may be affected if some HCCS
		ports are not in full lane status, have a large number of CRC
		errors and so on.

		Say M here if you want to include support for querying the
		health status and port information of HCCS on Kunpeng SoC.

		endmenu