Commit Graph

5 Commits

Author SHA1 Message Date
Huisong Li 7d6612834d
soc: kunpeng_hccs: fix some sparse warnings about incorrect type
This patch fixes some sparse warnings about incorrect type.
The address about PCC communication space should use '__iomem' tag.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202308151142.dH5Muhva-lkp@intel.com/
Fixes: 886bdf9c88 ("soc: hisilicon: Support HCCS driver on Kunpeng SoC")
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Link: https://lore.kernel.org/r/20230816073706.33297-1-lihuisong@huawei.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-08-21 21:05:11 -04:00
Arnd Bergmann a90d34afee soc: kunpeng_hccs: add MAILBOX dependency
When the mailbox subsystem is disabled, the driver fails to link, so add
an explicit dependency. Some other drivers use 'select' here, but the
dependency seems more logical and more common.

Fixes: 886bdf9c88 ("soc: hisilicon: Support HCCS driver on Kunpeng SoC")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-08-14 17:00:13 +02:00
Arnd Bergmann 37696fa746 soc: kunpeng_hccs: fix size_t format string
Printing a size_t using the %lu format string causes a warning on
architectures that define the type as 'unsigned int':

In file included from include/linux/device.h:15,
                 from include/linux/acpi.h:14,
                 from drivers/soc/hisilicon/kunpeng_hccs.c:25:
drivers/soc/hisilicon/kunpeng_hccs.c: In function 'hccs_get_bd_info':
drivers/soc/hisilicon/kunpeng_hccs.c:441:25: error: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' {aka 'unsigned int'} [-Werror=format=]

Use the correct %zu format instead.

Fixes: 886bdf9c88 ("soc: hisilicon: Support HCCS driver on Kunpeng SoC")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-08-12 19:20:11 +02:00
Huisong Li 47f7a25533 soc: hisilicon: add sysfs entry to query information of HCCS
This patch creates chip, die and port directory based on the actual
hardware implementation of platform. Some sysfs entries under these
directories are created to query the health status and port information
of HCCS.

Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2023-08-08 12:36:30 +00:00
Huisong Li 886bdf9c88 soc: hisilicon: Support HCCS driver on Kunpeng SoC
The Huawei Cache Coherence System (HCCS) is a multi-chip interconnection
bus protocol. This driver is aimed to support some features about HCCS on
Kunpeng SoC, like, querying the health status of HCCS.

This patch adds the probing of HCCS driver, and obtains all HCCS port
information by the dimension of chip and die on platform.

Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2023-08-08 12:36:29 +00:00