diff options
| author | Sebastian Ott <sebott@linux.ibm.com> | 2019-04-14 16:38:01 +0300 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2019-04-29 11:47:01 +0300 |
| commit | 71ba41c9b1d91042960e9d92a5c8f52dc8531eda (patch) | |
| tree | c0d4f5379684fb236526127730073d5fe1d44ea3 /arch/s390/include/asm/pci_clp.h | |
| parent | c475f1770a5e062652a6a877afcbd4e22b18039f (diff) | |
| download | linux-71ba41c9b1d91042960e9d92a5c8f52dc8531eda.tar.xz | |
s390/pci: provide support for MIO instructions
Provide support for PCI I/O instructions that work on mapped IO addresses.
Signed-off-by: Sebastian Ott <sebott@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/pci_clp.h')
| -rw-r--r-- | arch/s390/include/asm/pci_clp.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/s390/include/asm/pci_clp.h b/arch/s390/include/asm/pci_clp.h index d2d824a91e66..3ec52a05d500 100644 --- a/arch/s390/include/asm/pci_clp.h +++ b/arch/s390/include/asm/pci_clp.h @@ -43,6 +43,8 @@ struct clp_fh_list_entry { #define CLP_SET_ENABLE_PCI_FN 0 /* Yes, 0 enables it */ #define CLP_SET_DISABLE_PCI_FN 1 /* Yes, 1 disables it */ +#define CLP_SET_ENABLE_MIO 2 +#define CLP_SET_DISABLE_MIO 3 #define CLP_UTIL_STR_LEN 64 #define CLP_PFIP_NR_SEGMENTS 4 @@ -80,7 +82,8 @@ struct clp_req_query_pci { struct clp_rsp_query_pci { struct clp_rsp_hdr hdr; u16 vfn; /* virtual fn number */ - u16 : 7; + u16 : 6; + u16 mio_addr_avail : 1; u16 util_str_avail : 1; /* utility string available? */ u16 pfgid : 8; /* pci function group id */ u32 fid; /* pci function id */ @@ -96,6 +99,15 @@ struct clp_rsp_query_pci { u32 reserved[11]; u32 uid; /* user defined id */ u8 util_str[CLP_UTIL_STR_LEN]; /* utility string */ + u32 reserved2[16]; + u32 mio_valid : 6; + u32 : 26; + u32 : 32; + struct { + u64 wb; + u64 wt; + } addr[PCI_BAR_COUNT]; + u32 reserved3[6]; } __packed; /* Query PCI function group request */ |