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| author | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2021-09-21 12:57:22 +0100 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2021-10-19 10:30:56 +0100 |
| commit | b8bc0e50a32a3c3b51605e41de41b4d7952e6aa4 (patch) | |
| tree | f30b5a2086dc1093e185f5877060ab8a1d18730d /arch/arm/mach-imx | |
| parent | 48342ae751c797ac73ac9c894b3f312df18ffd21 (diff) | |
ARM: add __arm_iomem_set_ro() to write-protect ioremapped area
__arm_iomem_set_ro() marks an ioremapped area read-only. This is
intended for use with __arm_ioremap_exec() to allow the kernel to
write some code into e.g. SRAM and then write-protect it so the
kernel doesn't complain about W+X mappings.
Tested-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/mach-imx')
0 files changed, 0 insertions, 0 deletions