1 files changed, 83 insertions, 14 deletions

diff --git a/arch/s390/include/asm/pci_insn.h b/arch/s390/include/asm/pci_insn.h
index ba22a6ea51a1..ff81ed19c506 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
@@ -38,6 +40,8 @@
 #define ZPCI_MOD_FC_RESET_ERROR	7
 #define ZPCI_MOD_FC_RESET_BLOCK	9
 #define ZPCI_MOD_FC_SET_MEASURE	10
+#define ZPCI_MOD_FC_REG_INT_D	16
+#define ZPCI_MOD_FC_DEREG_INT_D	17
 
 /* FIB function controls */
 #define ZPCI_FIB_FC_ENABLED	0x80
@@ -51,16 +55,7 @@
 #define ZPCI_FIB_FC_LS_BLOCKED	0x20
 #define ZPCI_FIB_FC_DMAAS_REG	0x10
 
-/* Function Information Block */
-struct zpci_fib {
-	u32 fmt		:  8;	/* format */
-	u32		: 24;
-	u32		: 32;
-	u8 fc;			/* function controls */
-	u64		: 56;
-	u64 pba;		/* PCI base address */
-	u64 pal;		/* PCI address limit */
-	u64 iota;		/* I/O Translation Anchor */
+struct zpci_fib_fmt0 {
 	u32		:  1;
 	u32 isc		:  3;	/* Interrupt subclass */
 	u32 noi		: 12;	/* Number of interrupts */
@@ -72,16 +67,90 @@ struct zpci_fib {
 	u32		: 32;
 	u64 aibv;		/* Adapter int bit vector address */
 	u64 aisb;		/* Adapter int summary bit address */
+};
+
+struct zpci_fib_fmt1 {
+	u32		:  4;
+	u32 noi		: 12;
+	u32		: 16;
+	u32 dibvo	: 16;
+	u32		: 16;
+	u64		: 64;
+	u64		: 64;
+};
+
+/* Function Information Block */
+struct zpci_fib {
+	u32 fmt		:  8;	/* format */
+	u32		: 24;
+	u32		: 32;
+	u8 fc;			/* function controls */
+	u64		: 56;
+	u64 pba;		/* PCI base address */
+	u64 pal;		/* PCI address limit */
+	u64 iota;		/* I/O Translation Anchor */
+	union {
+		struct zpci_fib_fmt0 fmt0;
+		struct zpci_fib_fmt1 fmt1;
+	};
 	u64 fmb_addr;		/* Function measurement block address and key */
 	u32		: 32;
 	u32 gd;
 } __packed __aligned(8);
 
+/* directed interruption information block */
+struct zpci_diib {
+	u32 : 1;
+	u32 isc : 3;
+	u32 : 28;
+	u16 : 16;
+	u16 nr_cpus;
+	u64 disb_addr;
+	u64 : 64;
+	u64 : 64;
+} __packed __aligned(8);
+
+/* cpu directed interruption information block */
+struct zpci_cdiib {
+	u64 : 64;
+	u64 dibv_addr;
+	u64 : 64;
+	u64 : 64;
+	u64 : 64;
+} __packed __aligned(8);
+
+union zpci_sic_iib {
+	struct zpci_diib diib;
+	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);
-int zpci_store(u64 data, u64 req, u64 offset);
-int zpci_store_block(const u64 *data, u64 req, u64 offset);
-int zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc);
+int __zpci_load(u64 *data, u64 req, u64 offset);
+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)
+{
+	union zpci_sic_iib iib = {{0}};
+
+	return __zpci_set_irq_ctrl(ctl, isc, &iib);
+}
+
+#ifdef CONFIG_PCI
+static inline void enable_mio_ctl(void)
+{
+	if (static_branch_likely(&have_mio))
+		__ctl_set_bit(2, 5);
+}
+#else /* CONFIG_PCI */
+static inline void enable_mio_ctl(void) {}
+#endif /* CONFIG_PCI */
 
 #endif