git.kernel.dk Git - linux-block.git/commit

author	Sumanth Korikkar <sumanthk@linux.ibm.com>
	Thu, 12 Dec 2024 16:17:19 +0000 (17:17 +0100)
committer	Alexander Gordeev <agordeev@linux.ibm.com>
	Tue, 17 Dec 2024 11:46:14 +0000 (12:46 +0100)
commit	90e6f191e1ee094d13faae5fc29af7b5baf9d1b8
tree	8ca0bcc21e649083b6617145bbdef62ad24ce06d	tree
parent	2478d43ed621c4d15549142c0cfe6fa4a05e5f10	commit \| diff

s390/diag324: Retrieve power readings via diag 0x324

Retrieve electrical power readings for resources in a computing
environment via diag 0x324. diag 0x324 stores the power readings in the
power information block (pib).

Provide power readings from pib via diag324 ioctl interface. diag324
ioctl provides new pib to the user only if the threshold time has passed
since the last call. Otherwise, cache data is returned. When there are
no active readers, cleanup of pib buffer is performed.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

arch/s390/include/asm/diag.h		diff \| blob \| blame \| history
arch/s390/include/asm/sclp.h		diff \| blob \| blame \| history
arch/s390/include/uapi/asm/diag.h	[new file with mode: 0644]	blob
arch/s390/kernel/Makefile		diff \| blob \| blame \| history
arch/s390/kernel/diag.c		diff \| blob \| blame \| history
arch/s390/kernel/diag/Makefile		diff \| blob \| blame \| history
arch/s390/kernel/diag/diag324.c	[new file with mode: 0644]	blob
arch/s390/kernel/diag/diag_ioctl.h	[new file with mode: 0644]	blob
arch/s390/kernel/diag/diag_misc.c		diff \| blob \| blame \| history
drivers/s390/char/sclp.h		diff \| blob \| blame \| history
drivers/s390/char/sclp_early.c		diff \| blob \| blame \| history