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Diffstat (limited to 'arch/powerpc/include/asm/io.h')
-rw-r--r--arch/powerpc/include/asm/io.h33
1 files changed, 21 insertions, 12 deletions
diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h
index 001f2f11c19..45698d55cd6 100644
--- a/arch/powerpc/include/asm/io.h
+++ b/arch/powerpc/include/asm/io.h
@@ -2,6 +2,8 @@
#define _ASM_POWERPC_IO_H
#ifdef __KERNEL__
+#define ARCH_HAS_IOREMAP_WC
+
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -481,10 +483,16 @@ __do_out_asm(_rec_outl, "stwbrx")
_memcpy_fromio(dst,PCI_FIX_ADDR(src),n)
#endif /* !CONFIG_EEH */
-#ifdef CONFIG_PPC_INDIRECT_IO
-#define DEF_PCI_HOOK(x) x
+#ifdef CONFIG_PPC_INDIRECT_PIO
+#define DEF_PCI_HOOK_pio(x) x
+#else
+#define DEF_PCI_HOOK_pio(x) NULL
+#endif
+
+#ifdef CONFIG_PPC_INDIRECT_MMIO
+#define DEF_PCI_HOOK_mem(x) x
#else
-#define DEF_PCI_HOOK(x) NULL
+#define DEF_PCI_HOOK_mem(x) NULL
#endif
/* Structure containing all the hooks */
@@ -504,7 +512,7 @@ extern struct ppc_pci_io {
#define DEF_PCI_AC_RET(name, ret, at, al, space, aa) \
static inline ret name at \
{ \
- if (DEF_PCI_HOOK(ppc_pci_io.name) != NULL) \
+ if (DEF_PCI_HOOK_##space(ppc_pci_io.name) != NULL) \
return ppc_pci_io.name al; \
return __do_##name al; \
}
@@ -512,7 +520,7 @@ static inline ret name at \
#define DEF_PCI_AC_NORET(name, at, al, space, aa) \
static inline void name at \
{ \
- if (DEF_PCI_HOOK(ppc_pci_io.name) != NULL) \
+ if (DEF_PCI_HOOK_##space(ppc_pci_io.name) != NULL) \
ppc_pci_io.name al; \
else \
__do_##name al; \
@@ -616,12 +624,13 @@ static inline void iosync(void)
* * ioremap is the standard one and provides non-cacheable guarded mappings
* and can be hooked by the platform via ppc_md
*
- * * ioremap_flags allows to specify the page flags as an argument and can
- * also be hooked by the platform via ppc_md. ioremap_prot is the exact
- * same thing as ioremap_flags.
+ * * ioremap_prot allows to specify the page flags as an argument and can
+ * also be hooked by the platform via ppc_md.
*
* * ioremap_nocache is identical to ioremap
*
+ * * ioremap_wc enables write combining
+ *
* * iounmap undoes such a mapping and can be hooked
*
* * __ioremap_at (and the pending __iounmap_at) are low level functions to
@@ -629,7 +638,7 @@ static inline void iosync(void)
* currently be hooked. Must be page aligned.
*
* * __ioremap is the low level implementation used by ioremap and
- * ioremap_flags and cannot be hooked (but can be used by a hook on one
+ * ioremap_prot and cannot be hooked (but can be used by a hook on one
* of the previous ones)
*
* * __ioremap_caller is the same as above but takes an explicit caller
@@ -640,10 +649,10 @@ static inline void iosync(void)
*
*/
extern void __iomem *ioremap(phys_addr_t address, unsigned long size);
-extern void __iomem *ioremap_flags(phys_addr_t address, unsigned long size,
- unsigned long flags);
+extern void __iomem *ioremap_prot(phys_addr_t address, unsigned long size,
+ unsigned long flags);
+extern void __iomem *ioremap_wc(phys_addr_t address, unsigned long size);
#define ioremap_nocache(addr, size) ioremap((addr), (size))
-#define ioremap_prot(addr, size, prot) ioremap_flags((addr), (size), (prot))
extern void iounmap(volatile void __iomem *addr);