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sh: Kill off virt_to_bus()/bus_to_virt().

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Wire up ARCH_NO_VIRT_TO_BUS, and kill off the remaining users. The
dma-mapping code really wanted virt_to_phys()/phys_to_virt() anyways,
there are no inherently special bus addresses.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2007-07-25 11:18:00 +09:00
parent 0fbde9509d
commit e257ad062a
4 changed files with 9 additions and 10 deletions
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3
arch/sh/Kconfig
View File

@ -90,6 +90,9 @@ config ARCH_HAS_ILOG2_U64
bool
default n
config ARCH_NO_VIRT_TO_BUS
def_bool y
source "init/Kconfig"
menu "System type"

8
include/asm-sh/dma-mapping.h
View File

@ -69,11 +69,11 @@ static inline dma_addr_t dma_map_single(struct device *dev,
{
#if defined(CONFIG_PCI) && !defined(CONFIG_SH_PCIDMA_NONCOHERENT)
if (dev->bus == &pci_bus_type)
return virt_to_bus(ptr);
return virt_to_phys(ptr);
#endif
dma_cache_sync(dev, ptr, size, dir);
return virt_to_bus(ptr);
return virt_to_phys(ptr);
}
#define dma_unmap_single(dev, addr, size, dir) do { } while (0)
@ -116,7 +116,7 @@ static inline void dma_sync_single(struct device *dev, dma_addr_t dma_handle,
if (dev->bus == &pci_bus_type)
return;
#endif
dma_cache_sync(dev, bus_to_virt(dma_handle), size, dir);
dma_cache_sync(dev, phys_to_virt(dma_handle), size, dir);
}
static inline void dma_sync_single_range(struct device *dev,
@ -128,7 +128,7 @@ static inline void dma_sync_single_range(struct device *dev,
if (dev->bus == &pci_bus_type)
return;
#endif
dma_cache_sync(dev, bus_to_virt(dma_handle) + offset, size, dir);
dma_cache_sync(dev, phys_to_virt(dma_handle) + offset, size, dir);
}
static inline void dma_sync_sg(struct device *dev, struct scatterlist *sg,

4
include/asm-sh/floppy.h
View File

@ -181,7 +181,7 @@ static void _fd_chose_dma_mode(char *addr, unsigned long size)
{
if(can_use_virtual_dma == 2) {
if((unsigned int) addr >= (unsigned int) high_memory ||
virt_to_bus(addr) >= 0x10000000)
virt_to_phys(addr) >= 0x10000000)
use_virtual_dma = 1;
else
use_virtual_dma = 0;
@ -219,7 +219,7 @@ static int hard_dma_setup(char *addr, unsigned long size, int mode, int io)
doing_pdma = 0;
clear_dma_ff(FLOPPY_DMA);
set_dma_mode(FLOPPY_DMA,mode);
set_dma_addr(FLOPPY_DMA,virt_to_bus(addr));
set_dma_addr(FLOPPY_DMA,virt_to_phys(addr));
set_dma_count(FLOPPY_DMA,size);
enable_dma(FLOPPY_DMA);
return 0;

4
include/asm-sh/io.h
View File

@ -241,10 +241,6 @@ static inline void *phys_to_virt(unsigned long address)
#define virt_to_phys(address) ((unsigned long)(address))
#endif
#define virt_to_bus virt_to_phys
#define bus_to_virt phys_to_virt
#define page_to_bus page_to_phys
/*
* readX/writeX() are used to access memory mapped devices. On some
* architectures the memory mapped IO stuff needs to be accessed