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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-02-22 19:19:14 +0300
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-03-11 09:10:14 +0300
commit1cdab55d8a8313f77a95fb8ca966dc4334f8e810 (patch)
tree09649768514553e9c25d1a5a53a5cd567d0e138d /arch/powerpc/include
parent16962e7ce1dce29e1e92d231ac7d6844d7385d54 (diff)
downloadlinux-1cdab55d8a8313f77a95fb8ca966dc4334f8e810.tar.xz
powerpc: Wire up /proc/vmallocinfo to our ioremap()
This adds the necessary bits and pieces to powerpc implementation of ioremap to benefit from caller tracking in /proc/vmallocinfo, at least for ioremap's done after mem init as the older ones aren't tracked. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include')
-rw-r--r--arch/powerpc/include/asm/io.h6
-rw-r--r--arch/powerpc/include/asm/machdep.h2
2 files changed, 7 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h
index 494cd8b0a278..001f2f11c19b 100644
--- a/arch/powerpc/include/asm/io.h
+++ b/arch/powerpc/include/asm/io.h
@@ -632,6 +632,9 @@ static inline void iosync(void)
* ioremap_flags and cannot be hooked (but can be used by a hook on one
* of the previous ones)
*
+ * * __ioremap_caller is the same as above but takes an explicit caller
+ * reference rather than using __builtin_return_address(0)
+ *
* * __iounmap, is the low level implementation used by iounmap and cannot
* be hooked (but can be used by a hook on iounmap)
*
@@ -646,6 +649,9 @@ extern void iounmap(volatile void __iomem *addr);
extern void __iomem *__ioremap(phys_addr_t, unsigned long size,
unsigned long flags);
+extern void __iomem *__ioremap_caller(phys_addr_t, unsigned long size,
+ unsigned long flags, void *caller);
+
extern void __iounmap(volatile void __iomem *addr);
extern void __iomem * __ioremap_at(phys_addr_t pa, void *ea,
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index 6c34a0df82fd..0efdb1dfdc5f 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -90,7 +90,7 @@ struct machdep_calls {
void (*tce_flush)(struct iommu_table *tbl);
void __iomem * (*ioremap)(phys_addr_t addr, unsigned long size,
- unsigned long flags);
+ unsigned long flags, void *caller);
void (*iounmap)(volatile void __iomem *token);
#ifdef CONFIG_PM