diff options
| author | Ivan Kokshaysky <ink@jurassic.park.msu.ru> | 2007-07-15 23:38:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-16 09:05:37 -0700 |
| commit | 5c6af69abe9436c33b82a13623b38a4cc51e6464 (patch) | |
| tree | 1104c8392b17bd3132ada20ced79efff593261a2 /include/asm-alpha/io.h | |
| parent | ebaf4fc13e293dcafbb13c91aae2a45722652740 (diff) | |
fix alpha ISA support
isa_bus_to_virt() is still needed in a few places (lance.c, at least). When
we switch the kernel to using -Werror-implicit-function-declaration, the lack
of isa_bus_to_virt() breaks alpha allmodconfig builds.
Add isa_bus_to_virt() and deprecate the ezisting ISA APIs, though it might be
better to define these functions as BUG(), since virt_to_bus/bus_to_virt just
do wrong things on a number of machines.
[akpm@linux-foundation.org: build fix]
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-alpha/io.h')
| -rw-r--r-- | include/asm-alpha/io.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/include/asm-alpha/io.h b/include/asm-alpha/io.h index 21a86f1a05b3..ab5b60dcef19 100644 --- a/include/asm-alpha/io.h +++ b/include/asm-alpha/io.h @@ -4,6 +4,7 @@ #ifdef __KERNEL__ #include <linux/kernel.h> +#include <linux/mm.h> #include <asm/compiler.h> #include <asm/system.h> #include <asm/pgtable.h> @@ -90,6 +91,11 @@ static inline void * phys_to_virt(unsigned long address) #define page_to_phys(page) page_to_pa(page) +static inline dma_addr_t __deprecated isa_page_to_bus(struct page *page) +{ + return page_to_phys(page); +} + /* This depends on working iommu. */ #define BIO_VMERGE_BOUNDARY (alpha_mv.mv_pci_tbi ? PAGE_SIZE : 0) @@ -102,12 +108,12 @@ static inline void * phys_to_virt(unsigned long address) * * Note that this only works for a limited range of kernel addresses, * and very well may not span all memory. Consider this interface - * deprecated in favour of the mapping functions in <asm/pci.h>. + * deprecated in favour of the DMA-mapping API. */ extern unsigned long __direct_map_base; extern unsigned long __direct_map_size; -static inline unsigned long virt_to_bus(void *address) +static inline unsigned long __deprecated virt_to_bus(void *address) { unsigned long phys = virt_to_phys(address); unsigned long bus = phys + __direct_map_base; @@ -115,7 +121,7 @@ static inline unsigned long virt_to_bus(void *address) } #define isa_virt_to_bus virt_to_bus -static inline void *bus_to_virt(unsigned long address) +static inline void * __deprecated bus_to_virt(unsigned long address) { void *virt; @@ -126,6 +132,7 @@ static inline void *bus_to_virt(unsigned long address) virt = phys_to_virt(address); return (long)address <= 0 ? NULL : virt; } +#define isa_bus_to_virt bus_to_virt /* * There are different chipsets to interface the Alpha CPUs to the world. |