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authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-13 10:39:38 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-13 10:39:38 -0800
commit86f6f9b64a730844f1438cbedfacd6fb0170a7f7 (patch)
treecd80f8610b444ae3bd2ebfc136c2c3299a52bd9b /arch/sh/include/asm/io.h
parentd33a6291c1c577ff2272edab7416a0f7308e1cef (diff)
parent8b6f08eaef16dfcfebc32fa9a017bf70336ad9ec (diff)
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Merge branch 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (31 commits) sh: Add support for AP-SH4AD-0A board. sh: Add support for AP-SH4A-3A board. sh: Add a new mach type for alpha project boards. serial: sh-sci: build fixes. sh: sh7372 SH4AL-DSP probe support sh: sh7366 Enable SDIO IRQs sh: sh7343 Enable SDIO IRQs sh: mach-ecovec24: enable runtime PM for SDHI sh: sh7723 / ap325rxa enable SDIO IRQs sh: sh7722 Enable SDIO IRQs sh: sh7724 Enable SDIO IRQs sh: Fix up legacy PTEA space attribute mapping. sh: Stub out legacy PCC pgprot encoding for X2 TLBs. sh: constify prefetch pointers. sh: Add a machvec callback for early memblock reservations. sh: update sh7757lcr_defconfig sh: add PVR probing for SH7757 3rd cut sh: Use device_initcall() instead of __initcall() sh: intc - convert board specific landisk code sh: Move init_landisk_IRQ to header file ...
Diffstat (limited to 'arch/sh/include/asm/io.h')
-rw-r--r--arch/sh/include/asm/io.h61
1 files changed, 9 insertions, 52 deletions
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 89ab2c57a4c2..28c5aa58bb45 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -11,11 +11,6 @@
*
* While read{b,w,l,q} and write{b,w,l,q} contain memory barriers
* automatically, there are also __raw versions, which do not.
- *
- * Historically, we have also had ctrl_in{b,w,l,q}/ctrl_out{b,w,l,q} for
- * SuperH specific I/O (raw I/O to on-chip CPU peripherals). In practice
- * these have the same semantics as the __raw variants, and as such, all
- * new code should be using the __raw versions.
*/
#include <linux/errno.h>
#include <asm/cache.h>
@@ -231,52 +226,6 @@ __BUILD_IOPORT_STRING(q, u64)
#endif
-/*
- * Legacy SuperH on-chip I/O functions
- *
- * These are all deprecated, all new (and especially cross-platform) code
- * should be using the __raw_xxx() routines directly.
- */
-static inline u8 __deprecated ctrl_inb(unsigned long addr)
-{
- return __raw_readb(addr);
-}
-
-static inline u16 __deprecated ctrl_inw(unsigned long addr)
-{
- return __raw_readw(addr);
-}
-
-static inline u32 __deprecated ctrl_inl(unsigned long addr)
-{
- return __raw_readl(addr);
-}
-
-static inline u64 __deprecated ctrl_inq(unsigned long addr)
-{
- return __raw_readq(addr);
-}
-
-static inline void __deprecated ctrl_outb(u8 v, unsigned long addr)
-{
- __raw_writeb(v, addr);
-}
-
-static inline void __deprecated ctrl_outw(u16 v, unsigned long addr)
-{
- __raw_writew(v, addr);
-}
-
-static inline void __deprecated ctrl_outl(u32 v, unsigned long addr)
-{
- __raw_writel(v, addr);
-}
-
-static inline void __deprecated ctrl_outq(u64 v, unsigned long addr)
-{
- __raw_writeq(v, addr);
-}
-
#define IO_SPACE_LIMIT 0xffffffff
/* synco on SH-4A, otherwise a nop */
@@ -341,7 +290,15 @@ __ioremap_29bit(phys_addr_t offset, unsigned long size, pgprot_t prot)
* mapping must be done by the PMB or by using page tables.
*/
if (likely(PXSEG(offset) < P3SEG && PXSEG(last_addr) < P3SEG)) {
- if (unlikely(pgprot_val(prot) & _PAGE_CACHABLE))
+ u64 flags = pgprot_val(prot);
+
+ /*
+ * Anything using the legacy PTEA space attributes needs
+ * to be kicked down to page table mappings.
+ */
+ if (unlikely(flags & _PAGE_PCC_MASK))
+ return NULL;
+ if (unlikely(flags & _PAGE_CACHABLE))
return (void __iomem *)P1SEGADDR(offset);
return (void __iomem *)P2SEGADDR(offset);