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authorSebastian Ott <sebott@linux.ibm.com>2019-04-14 16:38:01 +0300
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2019-04-29 11:47:01 +0300
commit71ba41c9b1d91042960e9d92a5c8f52dc8531eda (patch)
treec0d4f5379684fb236526127730073d5fe1d44ea3 /arch/s390/include/asm/pci_insn.h
parentc475f1770a5e062652a6a877afcbd4e22b18039f (diff)
downloadlinux-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.h5
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)