hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[POWERPC] Remove fixup_bigphys_addr() for arch/powerpc to avoid link error 

There are no actual implementations of fixup_bigphys_addr() in
arch/powerpc, and with a 64-bit aware ioremap() and so forth, it
should no longer be necessary.  This patch removes the last dregs of
fixup_bigphys_addr() from arch/powerpc.

In fact, the only reason this hasn't caused link errors already is
that nobody must have tried using one of the small number of drivers
using io_remap_pfn_range() on one of the small number of platforms
which are 32-bit but define CONFIG_PHYS_64BIT.  Nonetheless this fixes
a bug, and should go into 2.6.22.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
David Gibson 2007-05-14 11:43:20 +10:00 committed by Paul Mackerras
parent 39d207036c
commit e3d67b663b
2 changed files with 0 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/asm-powerpc/mmu-44x.h
View File

@ -55,8 +55,6 @@
typedef unsigned long long phys_addr_t;
extern phys_addr_t fixup_bigphys_addr(phys_addr_t, phys_addr_t);
typedef struct {
unsigned long id;
unsigned long vdso_base;

15
include/asm-powerpc/pgtable-ppc32.h
View File

@ -782,23 +782,8 @@ extern void kernel_set_cachemode (unsigned long address, unsigned long size,
/* Needs to be defined here and not in linux/mm.h, as it is arch dependent */
#define kern_addr_valid(addr) (1)
#ifdef CONFIG_PHYS_64BIT
extern int remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
unsigned long paddr, unsigned long size, pgprot_t prot);
static inline int io_remap_pfn_range(struct vm_area_struct *vma,
unsigned long vaddr,
unsigned long pfn,
unsigned long size,
pgprot_t prot)
{
phys_addr_t paddr64 = fixup_bigphys_addr(pfn << PAGE_SHIFT, size);
return remap_pfn_range(vma, vaddr, paddr64 >> PAGE_SHIFT, size, prot);
}
#else
#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
remap_pfn_range(vma, vaddr, pfn, size, prot)
#endif
/*
* No page table caches to initialise