lkml.org 
[lkml]   [2009]   [Apr]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[BUGFIX][PATCH] x86: fix set_fixmap to use phys_addr_t
Use phys_addr_t for receiving a physical address argument
instead of unsigned long. This allows fixmap to handle
pages higher than 4GB on x86-32.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
arch/x86/include/asm/fixmap.h | 4 ++--
arch/x86/include/asm/paravirt.h | 4 ++--
arch/x86/mm/pgtable.c | 3 ++-
arch/x86/xen/mmu.c | 2 +-
4 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h
index 81937a5..2d81af3 100644
--- a/arch/x86/include/asm/fixmap.h
+++ b/arch/x86/include/asm/fixmap.h
@@ -151,11 +151,11 @@ extern pte_t *pkmap_page_table;

void __native_set_fixmap(enum fixed_addresses idx, pte_t pte);
void native_set_fixmap(enum fixed_addresses idx,
- unsigned long phys, pgprot_t flags);
+ phys_addr_t phys, pgprot_t flags);

#ifndef CONFIG_PARAVIRT
static inline void __set_fixmap(enum fixed_addresses idx,
- unsigned long phys, pgprot_t flags)
+ phys_addr_t phys, pgprot_t flags)
{
native_set_fixmap(idx, phys, flags);
}
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 7727aa8..378e369 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -347,7 +347,7 @@ struct pv_mmu_ops {
/* Sometimes the physical address is a pfn, and sometimes its
an mfn. We can tell which is which from the index. */
void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx,
- unsigned long phys, pgprot_t flags);
+ phys_addr_t phys, pgprot_t flags);
};

struct raw_spinlock;
@@ -1432,7 +1432,7 @@ static inline void arch_leave_lazy_mmu_mode(void)
void arch_flush_lazy_mmu_mode(void);

static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
- unsigned long phys, pgprot_t flags)
+ phys_addr_t phys, pgprot_t flags)
{
pv_mmu_ops.set_fixmap(idx, phys, flags);
}
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 7a4d6ee..8e43bdd 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -347,7 +347,8 @@ void __native_set_fixmap(enum fixed_addresses idx, pte_t pte)
fixmaps_set++;
}

-void native_set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t flags)
+void native_set_fixmap(enum fixed_addresses idx, phys_addr_t phys,
+ pgprot_t flags)
{
__native_set_fixmap(idx, pfn_pte(phys >> PAGE_SHIFT, flags));
}
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index db3802f..2a81838 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -1750,7 +1750,7 @@ __init pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd,
}
#endif /* CONFIG_X86_64 */

-static void xen_set_fixmap(unsigned idx, unsigned long phys, pgprot_t prot)
+static void xen_set_fixmap(unsigned idx, phys_addr_t phys, pgprot_t prot)
{
pte_t pte;


\
 
 \ /
  Last update: 2009-04-09 19:59    [W:0.072 / U:0.228 seconds]
©2003-2014 Jasper Spaans. Advertise on this site