From 6f284a2ce7b8bc49cb8455b1763357897a899abb Mon Sep 17 00:00:00 2001 From: Franck Bui-Huu Date: Wed, 10 Jan 2007 09:44:05 +0100 Subject: [MIPS] FLATMEM: introduce PHYS_OFFSET. The old code was assuming that min_low_pfn was always 0. This means that platforms having a big hole at their memory start paid the price of wasting some memory for the allocation of unused entries in mem_map[]. This patch prevents this waste. It introduces PHYS_OFFSET define which is the start of the physical memory and uses it wherever needed. Specially when converting physical/virtual addresses into virtual/physical ones. Currently all platforms defines PHYS_OFFSET to 0. Signed-off-by: Franck Bui-Huu Signed-off-by: Ralf Baechle --- include/asm-mips/io.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/asm-mips/io.h') diff --git a/include/asm-mips/io.h b/include/asm-mips/io.h index d77b657c09c7..67f081078904 100644 --- a/include/asm-mips/io.h +++ b/include/asm-mips/io.h @@ -115,7 +115,7 @@ static inline void set_io_port_base(unsigned long base) */ static inline unsigned long virt_to_phys(volatile const void *address) { - return (unsigned long)address - PAGE_OFFSET; + return (unsigned long)address - PAGE_OFFSET + PHYS_OFFSET; } /* @@ -132,7 +132,7 @@ static inline unsigned long virt_to_phys(volatile const void *address) */ static inline void * phys_to_virt(unsigned long address) { - return (void *)(address + PAGE_OFFSET); + return (void *)(address + PAGE_OFFSET - PHYS_OFFSET); } /* -- cgit From 4ec031166f6a466a443f462e567f7551096b1741 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 9 Feb 2007 16:38:30 +0000 Subject: [PATCH] kill eth_io_copy_and_sum() On all targets that sucker boils down to memcpy_fromio(sbk->data, from, len). The function name is highly misguiding (it _never_ does any checksums), the last argument is just a noise and simply expanding the call to memcpy_fromio() gives shorter and more readable source. For a lot of reasons it has almost no remaining users, so it's better to just outright kill it. Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- include/asm-mips/io.h | 6 ------ 1 file changed, 6 deletions(-) (limited to 'include/asm-mips/io.h') diff --git a/include/asm-mips/io.h b/include/asm-mips/io.h index 67f081078904..b6a2eb816628 100644 --- a/include/asm-mips/io.h +++ b/include/asm-mips/io.h @@ -555,12 +555,6 @@ extern void pci_iounmap(struct pci_dev *dev, void __iomem *); */ #define __ISA_IO_base ((char *)(isa_slot_offset)) -/* - * We don't have csum_partial_copy_fromio() yet, so we cheat here and - * just copy it. The net code will then do the checksum later. - */ -#define eth_io_copy_and_sum(skb,src,len,unused) memcpy_fromio((skb)->data,(src),(len)) - /* * The caches on some architectures aren't dma-coherent and have need to * handle this in software. There are three types of operations that -- cgit