diff options
| -rw-r--r-- | Documentation/features/vm/ioremap_prot/arch-support.txt | 2 | ||||
| -rw-r--r-- | arch/mips/Kconfig | 1 | ||||
| -rw-r--r-- | arch/mips/include/asm/io.h | 12 | ||||
| -rw-r--r-- | arch/mips/include/asm/page.h | 1 |
4 files changed, 15 insertions, 1 deletions
diff --git a/Documentation/features/vm/ioremap_prot/arch-support.txt b/Documentation/features/vm/ioremap_prot/arch-support.txt index 8527601a3739..326e4797bc65 100644 --- a/Documentation/features/vm/ioremap_prot/arch-support.txt +++ b/Documentation/features/vm/ioremap_prot/arch-support.txt @@ -16,7 +16,7 @@ | ia64: | TODO | | m68k: | TODO | | microblaze: | TODO | - | mips: | TODO | + | mips: | ok | | nds32: | TODO | | nios2: | TODO | | openrisc: | TODO | diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 8272ea4c7264..378525aaadcc 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -56,6 +56,7 @@ config MIPS select HAVE_FUNCTION_TRACER select HAVE_GENERIC_DMA_COHERENT select HAVE_IDE + select HAVE_IOREMAP_PROT select HAVE_IRQ_EXIT_ON_IRQ_STACK select HAVE_IRQ_TIME_ACCOUNTING select HAVE_KPROBES diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h index 266257d56fb6..b5322f7386bf 100644 --- a/arch/mips/include/asm/io.h +++ b/arch/mips/include/asm/io.h @@ -218,6 +218,18 @@ static inline void __iomem * __ioremap_mode(phys_addr_t offset, unsigned long si } /* + * ioremap_prot - map bus memory into CPU space + * @offset: bus address of the memory + * @size: size of the resource to map + + * ioremap_prot gives the caller control over cache coherency attributes (CCA) + */ +static inline void __iomem *ioremap_prot(phys_addr_t offset, + unsigned long size, unsigned long prot_val) { + return __ioremap_mode(offset, size, prot_val & _CACHE_MASK); +} + +/* * ioremap - map bus memory into CPU space * @offset: bus address of the memory * @size: size of the resource to map diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h index e8cc328fce2d..6b31c93b5eaa 100644 --- a/arch/mips/include/asm/page.h +++ b/arch/mips/include/asm/page.h @@ -154,6 +154,7 @@ typedef struct { unsigned long pgd; } pgd_t; typedef struct { unsigned long pgprot; } pgprot_t; #define pgprot_val(x) ((x).pgprot) #define __pgprot(x) ((pgprot_t) { (x) } ) +#define pte_pgprot(x) __pgprot(pte_val(x) & ~_PFN_MASK) /* * On R4000-style MMUs where a TLB entry is mapping a adjacent even / odd |