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_insn.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_insn.h')
| -rw-r--r-- | arch/s390/include/asm/pci_insn.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/s390/include/asm/pci_insn.h b/arch/s390/include/asm/pci_insn.h index 71f19604ec61..61cf9531f68f 100644 --- a/arch/s390/include/asm/pci_insn.h +++ b/arch/s390/include/asm/pci_insn.h @@ -2,6 +2,8 @@ #ifndef _ASM_S390_PCI_INSN_H #define _ASM_S390_PCI_INSN_H +#include <linux/jump_label.h> + /* Load/Store status codes */ #define ZPCI_PCI_ST_FUNC_NOT_ENABLED 4 #define ZPCI_PCI_ST_FUNC_IN_ERR 8 @@ -122,6 +124,8 @@ union zpci_sic_iib { struct zpci_cdiib cdiib; }; +DECLARE_STATIC_KEY_FALSE(have_mio); + u8 zpci_mod_fc(u64 req, struct zpci_fib *fib, u8 *status); int zpci_refresh_trans(u64 fn, u64 addr, u64 range); int __zpci_load(u64 *data, u64 req, u64 offset); @@ -129,6 +133,7 @@ int zpci_load(u64 *data, const volatile void __iomem *addr, unsigned long len); int __zpci_store(u64 data, u64 req, u64 offset); int zpci_store(const volatile void __iomem *addr, u64 data, unsigned long len); int __zpci_store_block(const u64 *data, u64 req, u64 offset); +void zpci_barrier(void); int __zpci_set_irq_ctrl(u16 ctl, u8 isc, union zpci_sic_iib *iib); static inline int zpci_set_irq_ctrl(u16 ctl, u8 isc) |