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| author | Serge Semin <fancer.lancer@gmail.com> | 2023-12-02 14:14:18 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-25 14:52:50 -0800 |
| commit | 4b88c9c83fc036258d93fd42ab1bf1198f412c90 (patch) | |
| tree | c469516a0e12c13c6cde04b505805572e05b09de /arch | |
| parent | d1c8c7ef3928fa71f4dca570822d54d301216d16 (diff) | |
mips: dmi: Fix early remap on MIPS32
[ Upstream commit 0d0a3748a2cb38f9da1f08d357688ebd982eb788 ]
dmi_early_remap() has been defined as ioremap_cache() which on MIPS32 gets
to be converted to the VM-based mapping. DMI early remapping is performed
at the setup_arch() stage with no VM available. So calling the
dmi_early_remap() for MIPS32 causes the system to crash at the early boot
time. Fix that by converting dmi_early_remap() to the uncached remapping
which is always available on both 32 and 64-bits MIPS systems.
Note this change shall not cause any regressions on the current DMI
support implementation because on the early boot-up stage neither MIPS32
nor MIPS64 has the cacheable ioremapping support anyway.
Fixes: be8fa1cb444c ("MIPS: Add support for Desktop Management Interface (DMI)")
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/include/asm/dmi.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/include/asm/dmi.h b/arch/mips/include/asm/dmi.h index 27415a288adf..dc397f630c66 100644 --- a/arch/mips/include/asm/dmi.h +++ b/arch/mips/include/asm/dmi.h @@ -5,7 +5,7 @@ #include <linux/io.h> #include <linux/memblock.h> -#define dmi_early_remap(x, l) ioremap_cache(x, l) +#define dmi_early_remap(x, l) ioremap(x, l) #define dmi_early_unmap(x, l) iounmap(x) #define dmi_remap(x, l) ioremap_cache(x, l) #define dmi_unmap(x) iounmap(x) |