From 988b86e69ded17f0f1209fd3ef1c4c7f1567dcc1 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 13 Jan 2016 12:54:28 +0100 Subject: s390/pci: add ioctl interface for CLP Provide a user space interface to issue call logical-processor instructions. Only selected CLP commands are allowed, enough to get the full overview of the installed PCI functions. Reviewed-by: Sebastian Ott Signed-off-by: Martin Schwidefsky --- arch/s390/include/uapi/asm/clp.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 arch/s390/include/uapi/asm/clp.h (limited to 'arch/s390/include/uapi/asm/clp.h') diff --git a/arch/s390/include/uapi/asm/clp.h b/arch/s390/include/uapi/asm/clp.h new file mode 100644 index 000000000000..ab72d9d24373 --- /dev/null +++ b/arch/s390/include/uapi/asm/clp.h @@ -0,0 +1,28 @@ +/* + * ioctl interface for /dev/clp + * + * Copyright IBM Corp. 2016 + * Author(s): Martin Schwidefsky + */ + +#ifndef _ASM_CLP_H +#define _ASM_CLP_H + +#include +#include + +struct clp_req { + unsigned int c : 1; + unsigned int r : 1; + unsigned int lps : 6; + unsigned int cmd : 8; + unsigned int : 16; + unsigned int reserved; + __u64 data_p; +}; + +#define CLP_IOCTL_MAGIC 'c' + +#define CLP_SYNC _IOWR(CLP_IOCTL_MAGIC, 0xC1, struct clp_req) + +#endif -- cgit v1.2.3-55-g7522