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>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h
index 81937a5dc77c415a4fc878fd3ed502183677fa6e..2d81af3974a070185ca672eb4bebf246d7eeaaa5 100644 (file)
--- 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 7727aa8b7dda99087ca5ced1046a92046ab7c4d5..378e3691c08c54dd76e060eb468a00e8b61c59f9 100644 (file)
--- 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 5b7c7c8464fe9f9dfeb36310a569b440a2bc5e38..7aa03a5389f53ea635b9d553fac783e879c14535 100644 (file)
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -345,7 +345,8 @@ 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 db3802fb7b8470082aac4ba2884e6a588bda694d..2a81838a9ab729954b2e575205a576b58a083766 100644 (file)
--- 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;