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[MIPS] Always use virt_to_phys() when translating kernel addresses

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This patch fixes two places where we used plain 'x - PAGE_OFFSET' to
achieve virtual to physical address convertions. This type of convertion
is no more allowed since commit 6f284a2ce7.

Reported-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>

[Build fixes for machines that don't use the generic dma-coherence.h]

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Franck Bui-Huu
2007-03-19 17:36:42 +01:00
committed by Ralf Baechle
parent f33bc55c47
commit c9d0696223
3 changed files with 14 additions and 7 deletions
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17
arch/mips/mm/dma-default.c
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@@ -19,6 +19,13 @@
#include <dma-coherence.h>
static inline unsigned long dma_addr_to_virt(dma_addr_t dma_addr)
{
unsigned long addr = plat_dma_addr_to_phys(dma_addr);
return (unsigned long)phys_to_virt(addr);
}
/*
* Warning on the terminology - Linux calls an uncached area coherent;
* MIPS terminology calls memory areas with hardware maintained coherency
@@ -140,7 +147,7 @@ void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
enum dma_data_direction direction)
{
if (cpu_is_noncoherent_r10000(dev))
__dma_sync(plat_dma_addr_to_phys(dma_addr) + PAGE_OFFSET, size,
__dma_sync(dma_addr_to_virt(dma_addr), size,
direction);
plat_unmap_dma_mem(dma_addr);
@@ -234,7 +241,7 @@ void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
if (cpu_is_noncoherent_r10000(dev)) {
unsigned long addr;
addr = PAGE_OFFSET + plat_dma_addr_to_phys(dma_handle);
addr = dma_addr_to_virt(dma_handle);
__dma_sync(addr, size, direction);
}
}
@@ -249,7 +256,7 @@ void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
if (!plat_device_is_coherent(dev)) {
unsigned long addr;
addr = PAGE_OFFSET + plat_dma_addr_to_phys(dma_handle);
addr = dma_addr_to_virt(dma_handle);
__dma_sync(addr, size, direction);
}
}
@@ -264,7 +271,7 @@ void dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
if (cpu_is_noncoherent_r10000(dev)) {
unsigned long addr;
addr = PAGE_OFFSET + plat_dma_addr_to_phys(dma_handle);
addr = dma_addr_to_virt(dma_handle);
__dma_sync(addr + offset, size, direction);
}
}
@@ -279,7 +286,7 @@ void dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
if (!plat_device_is_coherent(dev)) {
unsigned long addr;
addr = PAGE_OFFSET + plat_dma_addr_to_phys(dma_handle);
addr = dma_addr_to_virt(dma_handle);
__dma_sync(addr + offset, size, direction);
}
}