Messages in this thread | | | Date | Wed, 25 Mar 2015 16:43:54 +0000 | From | Catalin Marinas <> | Subject | Re: [patch v11 03/23] ARM64: allow late use of early_ioremap |
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On Tue, Mar 24, 2015 at 10:02:36PM +0800, Hanjun Guo wrote: > From: Mark Salter <msalter@redhat.com> > > Commit 0e63ea48b4d8 (arm64/efi: add missing call to early_ioremap_reset()) > added a missing call to early_ioremap_reset(). This triggers a BUG if code > tries using early_ioremap() after the early_ioremap_reset(). This is a > problem for some ACPI code which needs short-lived temporary mappings > after paging_init() but before acpi_early_init() in start_kernel(). This > patch adds definitions for the __late_set_fixmap() and __late_clear_fixmap() > which avoids the BUG by allowing later use of early_ioremap(). > > CC: Leif Lindholm <leif.lindholm@linaro.org> > CC: Ard Biesheuvel <ard.biesheuvel@linaro.org> > Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> > Tested-by: Mark Langsdorf <mlangsdo@redhat.com> > Tested-by: Jon Masters <jcm@redhat.com> > Tested-by: Robert Richter <rrichter@cavium.com> > Tested-by: Timur Tabi <timur@codeaurora.org> > Acked-by: Robert Richter <rrichter@cavium.com> > Reviewed-by: Grant Likely <grant.likely@linaro.org> > Signed-off-by: Mark Salter <msalter@redhat.com> > Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
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