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The following commit:
5997efb96756 ("x86/boot: Use memremap() to map the MPF and MPC data")
causes new build failures on certain randconfigs:
drivers/sfi/sfi_core.c: In function ‘sfi_map_memory’:
drivers/sfi/sfi_core.c:104:10: error: implicit declaration of function ‘memremap’ [-Werror=implicit-function-declaration]
drivers/sfi/sfi_core.c:104:31: error: ‘MEMREMAP_WB’ undeclared (first use in this function)
This is a case of parasitic header dependencies: the sfi_core.c file indirectly
includes <linux/io.h> for typical - but not all configs.
Including <linux/io.h> explicitly solves the build failure.
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: arnd@arndb.de
Cc: aryabinin@virtuozzo.com
Cc: bp@alien8.de
Cc: bp@suse.de
Cc: brijesh.singh@amd.com
Cc: corbet@lwn.net
Cc: dvyukov@google.com
Cc: dyoung@redhat.com
Cc: glider@google.com
Cc: konrad.wilk@oracle.com
Cc: linux-tip-commits@vger.kernel.org
Cc: luto@kernel.org
Cc: lwoodman@redhat.com
Cc: matt@codeblueprint.co.uk
Cc: mst@redhat.com
Cc: pbonzini@redhat.com
Cc: riel@redhat.com
Cc: rkrcmar@redhat.com
Cc: thomas.lendacky@amd.com
Cc: toshi.kani@hpe.com
Link: http://lkml.kernel.org/r/20170720092307.6xslahuaclmsiffe@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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The ioremap() function is intended for mapping MMIO. For RAM, the
memremap() function should be used. Convert calls from ioremap() to
memremap() when re-mapping RAM.
This will be used later by SME to control how the encryption mask is
applied to memory mappings, with certain memory locations being mapped
decrypted vs encrypted.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Larry Woodman <lwoodman@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Toshimitsu Kani <toshi.kani@hpe.com>
Cc: kasan-dev@googlegroups.com
Cc: kvm@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: linux-efi@vger.kernel.org
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/b13fccb9abbd547a7eef7b1fdfc223431b211c88.1500319216.git.thomas.lendacky@amd.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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drivers/sfi/sfi_core.c:164:26: warning: no previous prototype for ‘sfi_map_table’ [-Wmissing-prototypes]
drivers/sfi/sfi_core.c:192:6: warning: no previous prototype for ‘sfi_unmap_table’ [-Wmissing-prototypes]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Fixes generated by 'codespell' and manually reviewed.
Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
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We copied ACPI's oversight of using ioremap() and creating
non-cached table mappings when we should have been using
ioremap_cache().
Signed-off-by: Len Brown <len.brown@intel.com>
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We never actually use the return value of sfi_sysfs_install_table() but
it still seems wrong to return a freed pointer.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Analogous to ACPI's /sys/firmware/acpi/tables/...
create /sys/firmware/sfi/tables/
The tables are primariy for the kernel,
but sometimes it is useful for user-space to be
able to read them.
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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There are 2 major changes from v0.81 to v0.7:
1. Consolidating the SPIB/I2CB tables into a new DEVS table,
which is more expandable and can support other bus types
than spi/i2c.
2. Creating a new GPIO table, which list all the GPIO pins
used in the platform.
However, to avoid breaking current platforms who use SFI v0.7
version firmware, the definitions for SPIB/I2CB will still
be kept for a while
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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sfi_verify_table() is called at runtime, and thus cannot be __init
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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The function sfi_map_memory/sfi_unmap_memory uses
early_ioremap/early_iounmap respectively, which refers to a __init
function. And function sfi_check_table also refers to a __init function
sfi_verify_table. Since the references are valid, so use __ref to get rid
of the warnings.
We were warned by the following warnings:
LD vmlinux.o
MODPOST vmlinux.o
WARNING: vmlinux.o(.text+0xb6ba3a): Section mismatch in reference from
the function sfi_map_memory() to the function
.init.text:early_ioremap()
The function sfi_map_memory() references
the function __init early_ioremap().
This is often because sfi_map_memory lacks a __init
annotation or the annotation of early_ioremap is wrong.
WARNING: vmlinux.o(.text+0xb6bab6): Section mismatch in reference from
the function sfi_unmap_memory() to the function
.init.text:early_iounmap()
The function sfi_unmap_memory() references
the function __init early_iounmap().
This is often because sfi_unmap_memory lacks a __init
annotation or the annotation of early_iounmap is wrong.
WARNING: vmlinux.o(.text+0xb6be30): Section mismatch in reference from
the function sfi_check_table() to the function
.init.text:sfi_verify_table()
The function sfi_check_table() references
the function __init sfi_verify_table().
This is often because sfi_check_table lacks a __init
annotation or the annotation of sfi_verify_table is wrong.
Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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drivers/sfi/sfi_core.c contains the generic SFI implementation.
It has a private header, sfi_core.h, for its own use and the
private use of future files in drivers/sfi/
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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