[RFC PATCH 01/11] asm-generic: io: Add exec versions of ioremap

[Russ Dill]

If code is to be copied into and area (such as SRAM) and run,
it needs to be marked as exec. Currently only an ARM version
of this exists.

Signed-off-by: Russ Dill <Russ.Dill@xxxxxx>
---
 arch/arm/include/asm/io.h   | 2 ++
 include/asm-generic/iomap.h | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index d070741..212d095 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -329,6 +329,8 @@ extern void _memset_io(volatile void __iomem *, int, size_t);
 #define ioremap_nocache(cookie,size)	__arm_ioremap((cookie), (size), MT_DEVICE)
 #define ioremap_cached(cookie,size)	__arm_ioremap((cookie), (size), MT_DEVICE_CACHED)
 #define ioremap_wc(cookie,size)		__arm_ioremap((cookie), (size), MT_DEVICE_WC)
+#define ioremap_exec(cookie,size)	__arm_ioremap_exec((cookie), (size), true)
+#define ioremap_exec_nocache(cookie,size) __arm_ioremap_exec((cookie), (size), false)
 #define iounmap				__arm_iounmap
 
 /*
diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
index 6afd7d6..e72c451 100644
--- a/include/asm-generic/iomap.h
+++ b/include/asm-generic/iomap.h
@@ -66,6 +66,11 @@ extern void ioport_unmap(void __iomem *);
 #define ioremap_wc ioremap_nocache
 #endif
 
+#ifndef ARCH_HAS_IOREMAP_EXEC
+#define ioremap_exec ioremap
+#define ioremap_exec_nocache ioremap_nocache
+#endif
+
 #ifdef CONFIG_PCI
 /* Destroy a virtual mapping cookie for a PCI BAR (memory or IO) */
 struct pci_dev;
-- 
1.8.3.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/