7 files changed, 70 insertions, 146 deletions

diff --git a/include/asm-i386/msi.h b/include/asm-i386/msi.h
deleted file mode 100644
index 7368a89a0f42..000000000000
--- a/include/asm-i386/msi.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * Copyright (C) 2003-2004 Intel
- * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
- */
-
-#ifndef ASM_MSI_H
-#define ASM_MSI_H
-
-#include <asm/desc.h>
-#include <mach_apic.h>
-
-extern struct msi_ops arch_msi_ops;
-
-static inline int msi_arch_init(void)
-{
-        msi_register(&arch_msi_ops);
-        return 0;
-}
-
-#endif /* ASM_MSI_H */
diff --git a/include/asm-ia64/machvec.h b/include/asm-ia64/machvec.h
index 15b545a897a4..90cba967df35 100644
--- a/include/asm-ia64/machvec.h
+++ b/include/asm-ia64/machvec.h
@@ -20,6 +20,7 @@ struct page;
 struct mm_struct;
 struct pci_bus;
 struct task_struct;
+struct pci_dev;
 
 typedef void ia64_mv_setup_t (char **);
 typedef void ia64_mv_cpu_init_t (void);
@@ -75,7 +76,9 @@ typedef unsigned char ia64_mv_readb_relaxed_t (const volatile void __iomem *);
 typedef unsigned short ia64_mv_readw_relaxed_t (const volatile void __iomem *);
 typedef unsigned int ia64_mv_readl_relaxed_t (const volatile void __iomem *);
 typedef unsigned long ia64_mv_readq_relaxed_t (const volatile void __iomem *);
-typedef int ia64_mv_msi_init_t (void);
+
+typedef int ia64_mv_setup_msi_irq_t (unsigned int irq, struct pci_dev *pdev);
+typedef void ia64_mv_teardown_msi_irq_t (unsigned int irq);
 
 static inline void
 machvec_noop (void)
@@ -154,7 +157,8 @@ extern void machvec_tlb_migrate_finish (struct mm_struct *);
 #  define platform_readl_relaxed        ia64_mv.readl_relaxed
 #  define platform_readq_relaxed        ia64_mv.readq_relaxed
 #  define platform_migrate              ia64_mv.migrate
-#  define platform_msi_init             ia64_mv.msi_init
+#  define platform_setup_msi_irq        ia64_mv.setup_msi_irq
+#  define platform_teardown_msi_irq     ia64_mv.teardown_msi_irq
 # endif
 
 /* __attribute__((__aligned__(16))) is required to make size of the
@@ -204,7 +208,8 @@ struct ia64_machine_vector {
         ia64_mv_readl_relaxed_t *readl_relaxed;
         ia64_mv_readq_relaxed_t *readq_relaxed;
         ia64_mv_migrate_t *migrate;
-        ia64_mv_msi_init_t *msi_init;
+        ia64_mv_setup_msi_irq_t *setup_msi_irq;
+        ia64_mv_teardown_msi_irq_t *teardown_msi_irq;
 } __attribute__((__aligned__(16))); /* align attrib? see above comment */
 
 #define MACHVEC_INIT(name)                      \
@@ -250,7 +255,8 @@ struct ia64_machine_vector {
         platform_readl_relaxed,                 \
         platform_readq_relaxed,                 \
         platform_migrate,                       \
-        platform_msi_init,                      \
+        platform_setup_msi_irq,                 \
+        platform_teardown_msi_irq,              \
 }
 
 extern struct ia64_machine_vector ia64_mv;
@@ -404,8 +410,11 @@ extern int ia64_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size
 #ifndef platform_migrate
 # define platform_migrate machvec_noop_task
 #endif
-#ifndef platform_msi_init
-# define platform_msi_init      ((ia64_mv_msi_init_t*)NULL)
+#ifndef platform_setup_msi_irq
+# define platform_setup_msi_irq         ((ia64_mv_setup_msi_irq_t*)NULL)
+#endif
+#ifndef platform_teardown_msi_irq
+# define platform_teardown_msi_irq      ((ia64_mv_teardown_msi_irq_t*)NULL)
 #endif
 
 #endif /* _ASM_IA64_MACHVEC_H */
diff --git a/include/asm-ia64/machvec_sn2.h b/include/asm-ia64/machvec_sn2.h
index cf724dc79d8c..c54b165b1c17 100644
--- a/include/asm-ia64/machvec_sn2.h
+++ b/include/asm-ia64/machvec_sn2.h
@@ -67,7 +67,8 @@ extern ia64_mv_dma_sync_sg_for_device	sn_dma_sync_sg_for_device;
 extern ia64_mv_dma_mapping_error        sn_dma_mapping_error;
 extern ia64_mv_dma_supported            sn_dma_supported;
 extern ia64_mv_migrate_t                sn_migrate;
-extern ia64_mv_msi_init_t               sn_msi_init;
+extern ia64_mv_setup_msi_irq_t          sn_setup_msi_irq;
+extern ia64_mv_teardown_msi_irq_t       sn_teardown_msi_irq;
 
 
 /*
@@ -120,9 +121,11 @@ extern ia64_mv_msi_init_t		sn_msi_init;
 #define platform_dma_supported          sn_dma_supported
 #define platform_migrate                sn_migrate
 #ifdef CONFIG_PCI_MSI
-#define platform_msi_init               sn_msi_init
+#define platform_setup_msi_irq          sn_setup_msi_irq
+#define platform_teardown_msi_irq       sn_teardown_msi_irq
 #else
-#define platform_msi_init               ((ia64_mv_msi_init_t*)NULL)
+#define platform_setup_msi_irq          ((ia64_mv_setup_msi_irq_t*)NULL)
+#define platform_teardown_msi_irq       ((ia64_mv_teardown_msi_irq_t*)NULL)
 #endif
 
 #include <asm/sn/io.h>
diff --git a/include/asm-ia64/msi.h b/include/asm-ia64/msi.h
deleted file mode 100644
index bb92b0dbde2f..000000000000
--- a/include/asm-ia64/msi.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Copyright (C) 2003-2004 Intel
- * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
- */
-
-#ifndef ASM_MSI_H
-#define ASM_MSI_H
-
-#define NR_VECTORS              NR_IRQS
-#define FIRST_DEVICE_VECTOR     IA64_FIRST_DEVICE_VECTOR
-#define LAST_DEVICE_VECTOR      IA64_LAST_DEVICE_VECTOR
-static inline void set_intr_gate (int nr, void *func) {}
-#define IO_APIC_VECTOR(irq)     (irq)
-#define ack_APIC_irq            ia64_eoi
-#define MSI_TARGET_CPU_SHIFT    4
-
-extern struct msi_ops msi_apic_ops;
-
-static inline int msi_arch_init(void)
-{
-        if (platform_msi_init)
-                return platform_msi_init();
-
-        /* default ops for most ia64 platforms */
-        msi_register(&msi_apic_ops);
-        return 0;
-}
-
-#endif /* ASM_MSI_H */
diff --git a/include/asm-x86_64/msi.h b/include/asm-x86_64/msi.h
deleted file mode 100644
index 1876fda52ae3..000000000000
--- a/include/asm-x86_64/msi.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2003-2004 Intel
- * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
- */
-
-#ifndef ASM_MSI_H
-#define ASM_MSI_H
-
-#include <asm/desc.h>
-#include <asm/mach_apic.h>
-#include <asm/smp.h>
-
-extern struct msi_ops arch_msi_ops;
-
-static inline int msi_arch_init(void)
-{
-        msi_register(&arch_msi_ops);
-        return 0;
-}
-
-#endif /* ASM_MSI_H */
diff --git a/include/linux/msi.h b/include/linux/msi.h
new file mode 100644
index 000000000000..c7ef94343673
--- /dev/null
+++ b/include/linux/msi.h
@@ -0,0 +1,49 @@
+#ifndef LINUX_MSI_H
+#define LINUX_MSI_H
+
+struct msi_msg {
+        u32     address_lo;     /* low 32 bits of msi message address */
+        u32     address_hi;     /* high 32 bits of msi message address */
+        u32     data;           /* 16 bits of msi message data */
+};
+
+/* Heper functions */
+extern void mask_msi_irq(unsigned int irq);
+extern void unmask_msi_irq(unsigned int irq);
+extern void read_msi_msg(unsigned int irq, struct msi_msg *msg);
+
+extern void write_msi_msg(unsigned int irq, struct msi_msg *msg);
+
+struct msi_desc {
+        struct {
+                __u8    type    : 5;    /* {0: unused, 5h:MSI, 11h:MSI-X} */
+                __u8    maskbit : 1;    /* mask-pending bit supported ?   */
+                __u8    unused  : 1;
+                __u8    is_64   : 1;    /* Address size: 0=32bit 1=64bit  */
+                __u8    pos;            /* Location of the msi capability */
+                __u16   entry_nr;       /* specific enabled entry         */
+                unsigned default_irq;   /* default pre-assigned irq       */
+        }msi_attrib;
+
+        struct {
+                __u16   head;
+                __u16   tail;
+        }link;
+
+        void __iomem *mask_base;
+        struct pci_dev *dev;
+
+#ifdef CONFIG_PM
+        /* PM save area for MSIX address/data */
+        struct msi_msg msg_save;
+#endif
+};
+
+/*
+ * The arch hook for setup up msi irqs
+ */
+int arch_setup_msi_irq(unsigned int irq, struct pci_dev *dev);
+void arch_teardown_msi_irq(unsigned int irq);
+
+
+#endif /* LINUX_MSI_H */
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 9b34bc8f34e4..0da5a4a8940f 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -595,11 +595,6 @@ struct msix_entry {
         u16     entry;  /* driver uses to specify entry, OS writes */
 };
 
-struct msi_msg {
-        u32     address_lo;     /* low 32 bits of msi message address */
-        u32     address_hi;     /* high 32 bits of msi message address */
-        u32     data;           /* 16 bits of msi message data */
-};
 
 #ifndef CONFIG_PCI_MSI
 static inline void pci_scan_msi_device(struct pci_dev *dev) {}
@@ -617,68 +612,6 @@ extern int pci_enable_msix(struct pci_dev* dev,
         struct msix_entry *entries, int nvec);
 extern void pci_disable_msix(struct pci_dev *dev);
 extern void msi_remove_pci_irq_vectors(struct pci_dev *dev);
-
-/*
- * MSI operation vector.  Used by the msi core code (drivers/pci/msi.c)
- * to abstract platform-specific tasks relating to MSI address generation
- * and resource management.
- */
-struct msi_ops {
-        int needs_64bit_address;
-        /**
-         * setup - generate an MSI bus address and data for a given vector
-         * @pdev: PCI device context (in)
-         * @irq: irq allocated by the msi core (in)
-         * @msg: PCI bus address and data for msi message (out)
-         *
-         * Description: The setup op is used to generate a PCI bus addres and
-         * data which the msi core will program into the card MSI capability
-         * registers.  The setup routine is responsible for picking an initial
-         * cpu to target the MSI at.  The setup routine is responsible for
-         * examining pdev to determine the MSI capabilities of the card and
-         * generating a suitable address/data.  The setup routine is
-         * responsible for allocating and tracking any system resources it
-         * needs to route the MSI to the cpu it picks, and for associating
-         * those resources with the passed in vector.
-         *
-         * Returns 0 if the MSI address/data was successfully setup.
-         **/
-
-        int     (*setup)    (struct pci_dev *pdev, unsigned int irq,
-                             struct msi_msg *msg);
-
-        /**
-         * teardown - release resources allocated by setup
-         * @vector: vector context for resources (in)
-         *
-         * Description:  The teardown op is used to release any resources
-         * that were allocated in the setup routine associated with the passed
-         * in vector.
-         **/
-
-        void    (*teardown) (unsigned int irq);
-
-        /**
-         * target - retarget an MSI at a different cpu
-         * @vector: vector context for resources (in)
-         * @cpu:  new cpu to direct vector at (in)
-         * @addr_hi: new value of PCI bus upper 32 bits (in/out)
-         * @addr_lo: new value of PCI bus lower 32 bits (in/out)
-         *
-         * Description:  The target op is used to redirect an MSI vector
-         * at a different cpu.  addr_hi/addr_lo coming in are the existing
-         * values that the MSI core has programmed into the card.  The
-         * target code is responsible for freeing any resources (if any)
-         * associated with the old address, and generating a new PCI bus
-         * addr_hi/addr_lo that will redirect the vector at the indicated cpu.
-         **/
-
-        void    (*target)   (unsigned int irq, cpumask_t cpumask,
-                             struct msi_msg *msg);
-};
-
-extern int msi_register(struct msi_ops *ops);
-
 #endif
 
 #ifdef CONFIG_HT_IRQ