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Subject[RFC PATCH 1/2] asm-generic: io: Add exec versions of ioremap
Date
From: Russ Dill <Russ.Dill@ti.com>

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@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
---
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 1805674..1d99d42 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -344,6 +344,8 @@ extern void _memset_io(volatile void __iomem *, int, size_t);
#define ioremap_nocache(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE)
#define ioremap_cache(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 1b41011..6648ff3 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;
--
2.1.0


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