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Some modules need find_first_bit() and find_first_zero_bit(), so export
them.
The related error (with allmodconfig under unicore32):
MODPOST 4039 modules
ERROR: "find_first_bit" [sound/soc/codecs/snd-soc-uda1380.ko] undefined!
ERROR: "find_first_zero_bit" [net/sctp/sctp.ko] undefined!
...
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
unicore32 supports STRICT_DEVMEM, so it needs devmem_is_allowed(), like
some of other architectures have done (e.g. arm, powerpc, x86 ...).
The related error with allmodconfig:
CC drivers/char/mem.o
drivers/char/mem.c: In function ârange_is_allowedâ:
drivers/char/mem.c:69: error: implicit declaration of function âdevmem_is_allowedâ
make[2]: *** [drivers/char/mem.o] Error 1
make[1]: *** [drivers/char] Error 2
make: *** [drivers] Error 2
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Add generic 'screen_info' just like another architectures have done
(e.g. tile, sh, score, ia64, hexagon, and cris).
The related error (with allmodconfig under unicore32):
LD init/built-in.o
drivers/built-in.o: In function `vgacon_save_screen':
powercap_sys.c:(.text+0x21788): undefined reference to `screen_info'
drivers/built-in.o: In function `vgacon_resize':
powercap_sys.c:(.text+0x21b54): undefined reference to `screen_info'
drivers/built-in.o: In function `vgacon_switch':
powercap_sys.c:(.text+0x21cb4): undefined reference to `screen_info'
drivers/built-in.o: In function `vgacon_init':
powercap_sys.c:(.text+0x2296c): undefined reference to `screen_info'
drivers/built-in.o: In function `vgacon_startup':
powercap_sys.c:(.text+0x22e80): undefined reference to `screen_info'
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
After check the code, 'bswapsi2' and 'muldi3' are useless for
unicore32, so can remove them to avoid compiling failure.
The related error (with allmodconfig under unicore32):
LD init/built-in.o
arch/unicore32/kernel/built-in.o:(___ksymtab+__muldi3+0x0): undefined reference to `__muldi3'
arch/unicore32/kernel/built-in.o:(___ksymtab+__bswapsi2+0x0): undefined reference to `__bswapsi2'
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
'csum_partial' and 'csum_partial_copy_from_user' have already been
exported in "lib/", so need not export them again, or it will cause
compiling error.
The related error (with allmodconfig under unicore32):
LD vmlinux.o
lib/built-in.o:(___ksymtab+csum_partial+0x0): multiple definition of `__ksymtab_csum_partial'
arch/unicore32/kernel/built-in.o:(___ksymtab+csum_partial+0x0): first defined here
lib/built-in.o:(___ksymtab+csum_partial_copy_from_user+0x0): multiple definition of `__ksymtab_csum_partial_copy_from_user'
arch/unicore32/kernel/built-in.o:(___ksymtab+csum_partial_copy_from_user+0x0): first defined here
make: *** [vmlinux] Error 1
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Need generic definition for readl_relaxed(), like other architectures
have done. Or can not pass compiling with allmodconfig, the related
error:
CC [M] drivers/message/fusion/mptbase.o
drivers/message/fusion/mptbase.c: In function 'mpt_send_handshake_request':
drivers/message/fusion/mptbase.c:1224: error: implicit declaration of function 'readl_relaxed'
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Add generic definition just like another architectures have done, or
can not pass compiling with allmodconfig, the related error:
CC kernel/profile.o
kernel/profile.c: In function 'profile_tick':
kernel/profile.c:419: error: implicit declaration of function 'profile_pc'
make[1]: *** [kernel/profile.o] Error 1
make: *** [kernel] Error 2
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Need include "asm/pgtable.h" to include "asm-generic/pgtable-nopmd.h",
so can let 'pmd_t' defined. The related error with allmodconfig:
CC arch/unicore32/mm/alignment.o
In file included from arch/unicore32/mm/alignment.c:24:
arch/unicore32/include/asm/tlbflush.h:135: error: expected .). before .*. token
arch/unicore32/include/asm/tlbflush.h:154: error: expected .). before .*. token
In file included from arch/unicore32/mm/alignment.c:27:
arch/unicore32/mm/mm.h:15: error: expected .=., .,., .;., .sm. or ._attribute__. before .*. token
arch/unicore32/mm/mm.h:20: error: expected .=., .,., .;., .sm. or ._attribute__. before .*. token
arch/unicore32/mm/mm.h:25: error: expected .=., .,., .;., .sm. or ._attribute__. before .*. token
make[1]: *** [arch/unicore32/mm/alignment.o] Error 1
make: *** [arch/unicore32/mm] Error 2
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Add readl() and writel() for 'PM_' macros, just like another areas have
done within unicored32, or will cause compiling issue.
The related error (allmodconfig for unicored32):
CC arch/unicore32/kernel/clock.o
arch/unicore32/kernel/clock.c: In function 'clk_set_rate':
arch/unicore32/kernel/clock.c:182: warning: initialization makes integer from pointer without a cast
arch/unicore32/kernel/clock.c:204: error: lvalue required as left operand of assignment
arch/unicore32/kernel/clock.c:206: error: lvalue required as left operand of assignment
arch/unicore32/kernel/clock.c:207: error: invalid operands to binary & (have 'void *' and 'long unsigned int')
make[1]: *** [arch/unicore32/kernel/clock.o] Error 1
make: *** [arch/unicore32/kernel] Error 2
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
__vmalloc_area() has already been removed from upstream kernel, need
use __vmalloc_node_range() instead of.
The related commit: "d0a2126 mm: unify module_alloc code for vmalloc".
The related error (allmodconfig for unicore32):
CC arch/unicore32/kernel/module.o
arch/unicore32/kernel/module.c: In function 'module_alloc' :
arch/unicore32/kernel/module.c:34: error: implicit declaration of function '__vmalloc_area'
arch/unicore32/kernel/module.c:34: warning: return makes pointer from integer without a cast
make[1]: *** [arch/unicore32/kernel/module.o] Error 1
make: *** [arch/unicore32/kernel] Error 2
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
For 'csum_partial_copy_nocheck()', it has default definition in
'asm-generic'.
For '__raw_reads?()' and '__raw_writes?()' are used by the drivers
which no relationship with allmodconfig for unicode32, the related
modules are:
drivers/mmc/host/omap.c
drivers/mtd/nand/atmel_nand.c
drivers/mtd/nand/pxa3xx_nand.c
drivers/usb/gadget/at91_udc.c
Others are only within some architectures (not kernel wide).
The related error with allmodconfig for unicode32:
CC arch/unicore32/kernel/ksyms.o
arch/unicore32/kernel/ksyms.c:29: error: ._backtrace. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:29: error: type defaults to .nt. in declaration of ._backtrace.
arch/unicore32/kernel/ksyms.c:38: error: .sum_partial_copy_nocheck. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:38: error: type defaults to .nt. in declaration of .sum_partial_copy_nocheck.
arch/unicore32/kernel/ksyms.c:39: error: ._csum_ipv6_magic. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:39: error: type defaults to .nt. in declaration of ._csum_ipv6_magic.
arch/unicore32/kernel/ksyms.c:43: error: ._raw_readsb. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:43: error: type defaults to .nt. in declaration of ._raw_readsb.
arch/unicore32/kernel/ksyms.c:46: error: ._raw_readsw. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:46: error: type defaults to .nt. in declaration of ._raw_readsw.
arch/unicore32/kernel/ksyms.c:49: error: ._raw_readsl. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:49: error: type defaults to .nt. in declaration of ._raw_readsl.
arch/unicore32/kernel/ksyms.c:52: error: ._raw_writesb. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:52: error: type defaults to .nt. in declaration of ._raw_writesb.
arch/unicore32/kernel/ksyms.c:55: error: ._raw_writesw. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:55: error: type defaults to .nt. in declaration of ._raw_writesw.
arch/unicore32/kernel/ksyms.c:58: error: ._raw_writesl. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:58: error: type defaults to .nt. in declaration of ._raw_writesl.
arch/unicore32/kernel/ksyms.c:79: error: ._get_user_1. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:79: error: type defaults to .nt. in declaration of ._get_user_1.
arch/unicore32/kernel/ksyms.c:80: error: ._get_user_2. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:80: error: type defaults to .nt. in declaration of ._get_user_2.
arch/unicore32/kernel/ksyms.c:81: error: ._get_user_4. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:81: error: type defaults to .nt. in declaration of ._get_user_4.
arch/unicore32/kernel/ksyms.c:83: error: ._put_user_1. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:83: error: type defaults to .nt. in declaration of ._put_user_1.
arch/unicore32/kernel/ksyms.c:84: error: ._put_user_2. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:84: error: type defaults to .nt. in declaration of ._put_user_2.
arch/unicore32/kernel/ksyms.c:85: error: ._put_user_4. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:85: error: type defaults to .nt. in declaration of ._put_user_4.
arch/unicore32/kernel/ksyms.c:86: error: ._put_user_8. undeclared here (not in a function)
arch/unicore32/kernel/ksyms.c:86: error: type defaults to .nt. in declaration of ._put_user_8.
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
arm64 tree)
- stack alignment exception entry code fix
- GHASH crypto algorithm fix and performance improvement
- CMA buffer limited to 32-bit (until a better way to describe the
system topology in DT)
- UAPI sigcontext.h build fix
- __kernel_old_{gid,uid}_t definitions fix (affecting 32-bit LTP)
- ptrace fixes (kernel fault and 32-bit arm core dump)
- pte_mknotpresent() fix
- dts updates (APM SoC)
- defconfig and Kconfig update
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
"These are primarily bug fixes with a performance improvement patch for
the GHASH crypto algorithm (which went in during this merging window)
and dts/defconfig/Kconfig updates.
- ftrace_return_addr() macro fix for arm (introduced earlier via the
arm64 tree)
- stack alignment exception entry code fix
- GHASH crypto algorithm fix and performance improvement
- CMA buffer limited to 32-bit (until a better way to describe the
system topology in DT)
- UAPI sigcontext.h build fix
- __kernel_old_{gid,uid}_t definitions fix (affecting 32-bit LTP)
- ptrace fixes (kernel fault and 32-bit arm core dump)
- pte_mknotpresent() fix
- dts updates (APM SoC)
- defconfig and Kconfig update"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mm: remove broken &= operator from pmd_mknotpresent
arm64: fix build error in sigcontext.h
arm64: dts: Add more serial port nodes in APM X-Gene device tree
arm64/dma: Removing ARCH_HAS_DMA_GET_REQUIRED_MASK macro
arm64: ptrace: fix empty registers set in prstatus of aarch32 process core
arm64: uid16: fix __kernel_old_{gid,uid}_t definitions
arm64: ptrace: change fs when passing kernel pointer to regset code
arm64: Limit the CMA buffer to 32-bit if ZONE_DMA
arm/ftrace: fix ftrace_return_addr() to ftrace_return_address()
arm64/crypto: improve performance of GHASH algorithm
arm64/crypto: fix data corruption bug in GHASH algorithm
arm64: defconfig update for LTP
arm64: ftrace: Fix comment typo 'CONFIG_FUNCTION_GRAPH_FP_TEST'
arm64: add ARCH_HAS_OPP to allow enabling OPP library
arm64: restore alphabetic order in Kconfig
arm64: Bug fix in stack alignment exception
GCC 4.6.4 spits out the following warning when building perf_event_v7.c:
arch/arm/kernel/perf_event_v7.c: In function 'krait_pmu_get_event_idx':
arch/arm/kernel/perf_event_v7.c:1927:6: warning: 'bit' may be used uninitialized in this function
While upgrading the version of gcc may solve this, the code can also be
organised to be more efficient by not carrying more local variables than
is necessary across the armv7pmu_get_event_idx function call. If we set
'bit' to -1 (which is invalid for clear_bit) we can use that as an
indication whether we need to clear a bit after this function.
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
A number of configurations spit out warnings similar to:
warning: (SOC_IMX6 && SOC_VF610 && ARCH_OMAP4) selects PL310_ERRATA_588369 which has unmet direct dependencies (CACHE_L2X0)
warning: (SOC_IMX6 && SOC_VF610 && ARCH_OMAP4) selects PL310_ERRATA_727915 which has unmet direct dependencies (CACHE_L2X0)
Clean up the dependencies here:
* PL310 symbols should only be selected when CACHE_L2X0 is enabled.
* Since the cache-l2x0 code detects PL310 presence at runtime, and we will
eventually get rid of CACHE_PL310, surround these errata options with an
if CACHE_L2X0 conditional rather than repeating the dependency against
each.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Two reasons for this rename. Firstly, it removes the camel case
convention which isn't used by any other platform and secondly it
matches the naming convention for the internal kernel, which can
become annoying when flipping between the two.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
This should be a plain old '&' and could easily lead to undefined
behaviour if the target of a pmd_mknotpresent invocation was the same
as the parameter.
Fixes: 9c7e535fcc17 (arm64: mm: Route pmd thp functions through pte equivalents)
Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: <stable@vger.kernel.org> # v3.15
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Since commit:
commit d93003e8e4e1fbbc8a06ec561a63f5aa105a4c45
Author: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Thu Apr 24 22:58:30 2014 +0100
ARM: 8042/1: iwmmxt: allow to build iWMMXt on Marvell PJ4B
fixed the error that prevented Dove SoC from being built with
the rest of the mvebu SoCs, we can now add it to the defconfig.
In addition, this commit enables SERIAL_OF_PLATFORM, which is required
to have UART on some of the boards.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
I'm seeing this build failure for arm64:
CC [M] Documentation/filesystems/configfs/configfs_example_macros.o
In file included from /usr/include/bits/sigcontext.h:27:0,
from /usr/include/signal.h:340,
from /usr/include/sys/wait.h:30,
from Documentation/accounting/getdelays.c:24:
.../linux/usr/include/asm/sigcontext.h:61:2: error: unknown type name ‘u64’
u64 esr;
^
make[2]: *** [Documentation/accounting/getdelays] Error 1
This was introduced by commit 15af1942dd61ee23:
arm64: Expose ESR_EL1 information to user when SIGSEGV/SIGBUS
Using __u64 instead of u64 fixes the problem.
Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
APM X-Gene Storm SoC supports 4 serial ports. This patch adds device nodes
for serial ports 1 to 3 (a device node for serial port 0 is already present
in the dts file).
This patch also sets the compatible property of serial nodes to "ns16550a".
Signed-off-by: Vinayak Kale <vkale@apm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Arm64 does not define dma_get_required_mask() function.
Therefore, it should not define the ARCH_HAS_DMA_GET_REQUIRED_MASK.
This causes build errors in some device drivers (e.g. mpt2sas)
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: <stable@vger.kernel.org>
Currently core file of aarch32 process prstatus note has empty
registers set. As result aarch32 core files create by V8 kernel are
not very useful.
It happens because compat_gpr_get and compat_gpr_set functions can
copy registers values to/from either kbuf or ubuf. ELF core file
collection function fill_thread_core_info calls compat_gpr_get
with kbuf set and ubuf set to 0. But current compat_gpr_get and
compat_gpr_set function handle copy to/from only ubuf case.
Fix is to handle kbuf and ubuf as two separate cases in similar
way as other functions like user_regset_copyout, user_regset_copyin do.
Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Whilst native arm64 applications don't have the 16-bit UID/GID syscalls
wired up, compat tasks can still access them. The 16-bit wrappers for
these syscalls use __kernel_old_uid_t and __kernel_old_gid_t, which must
be 16-bit data types to maintain compatibility with the 16-bit UIDs used
by compat applications.
This patch defines 16-bit __kernel_old_{gid,uid}_t types for arm64
instead of using the 32-bit types provided by asm-generic.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Our compat PTRACE_POKEUSR implementation simply passes the user data to
regset_copy_from_user after some simple range checking. Unfortunately,
the data in question has already been copied to the kernel stack by this
point, so the subsequent access_ok check fails and the ptrace request
returns -EFAULT. This causes problems tracing fork() with older versions
of strace.
This patch briefly changes the fs to KERNEL_DS, so that the access_ok
check passes even with a kernel address.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
When the CMA buffer is allocated, it is too early to know whether
devices will require ZONE_DMA memory. This patch limits the CMA buffer
to (DMA_BIT_MASK(32) + 1) if CONFIG_ZONE_DMA is enabled.
In addition, it computes the dma_to_phys(DMA_BIT_MASK(32)) before the
increment (no current functional change).
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The clean up of CALLER_ADDR*() functions required the archs to either
use the default __builtin_return_address(X) (where X > 0) or override
it with something the arch can use. To override it, the arch would
define ftrace_return_address(x).
The arm architecture requires this to be redefined but instead of
defining ftrace_return_address(x) it defined ftrace_return_addr(x).
Fixes: eed542d6962b (ftrace: Make CALLER_ADDRx macros more generic)
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This patches modifies the GHASH secure hash implementation to switch to a
faster, polynomial multiplication based reduction instead of one that uses
shifts and rotates.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This fixes a bug in the GHASH algorithm resulting in the calculated hash to be
incorrect if the input is presented in chunks whose size is not a multiple of
16 bytes.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Fixes: fdd2389457b2 ("arm64/crypto: GHASH secure hash using ARMv8 Crypto Extensions")
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The Operating Performance Point (OPP) Layer library is a generic
library used by CPUFREQ and DEVFREQ. It can be enabled only on the
platforms that specify ARCH_HAS_OPP option.
This patch selects that option in order to allow ARM64 based platforms
to use OPP library.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The value of ESR has been stored into x1, and should be directly pass to
do_sp_pc_abort function, "MOV x1, x25" is an extra operation and do_sp_pc_abort
will get the wrong value of ESR.
Signed-off-by: ChiaHao <andy.jhshiu@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: <stable@vger.kernel.org>
Remove xen_enable_nmi() to fix a 64-bit guest crash when registering
the NMI callback on Xen 3.1 and earlier.
It's not needed since the NMI callback is set by a set_trap_table
hypercall (in xen_load_idt() or xen_write_idt_entry()).
It's also broken since it only set the current VCPU's callback.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reported-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Tested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
We have an soc check to ensure that the scu and certain A9 specific
registers are not accessed on Exynos5250 (which is A15 based).
Rather than adding another soc specific check for 5420 let us test
for the Cortex A9 primary part number.
This resolves the below crash seen on exynos5420 during core switching
after the CPUIdle consolidation series was merged.
[ 155.975589] [<c0013174>] (scu_enable) from [<c001b0dc>] (exynos_cpu_pm_notifier+0x80/0xc4)
[ 155.983833] [<c001b0dc>] (exynos_cpu_pm_notifier) from [<c003c1b0>] (notifier_call_chain+0x44/0x84)
[ 155.992851] [<c003c1b0>] (notifier_call_chain) from [<c007a49c>] (cpu_pm_notify+0x20/0x3c)
[ 156.001089] [<c007a49c>] (cpu_pm_notify) from [<c007a564>] (cpu_pm_exit+0x20/0x38)
[ 156.008635] [<c007a564>] (cpu_pm_exit) from [<c0019e98>] (bL_switcher_thread+0x298/0x40c)
[ 156.016788] [<c0019e98>] (bL_switcher_thread) from [<c003842c>] (kthread+0xcc/0xe8)
[ 156.024426] [<c003842c>] (kthread) from [<c000e438>] (ret_from_fork+0x14/0x3c)
[ 156.031621] Code: ea017fec c0530a00 c052e3f8 c0012dcc (e5903000
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
The System Type menu is getting quite long with platforms and is
inconsistent in handling of sub-arch specific options. Tidy up the menu
by making platform options a menuconfig entry containing any platform
specific config items.
[arnd: change OMAP part according to suggestion from
Tony Lindgren <tony@atomide.com>]
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Following 5d01b7684b7e "mmc: simplify SDHCI Kconfig dependencies",
SDHCI drivers that use MMC_SDHCI_PLTFM no longer select it, but
instead depend on it. This means that multi_v7_defconfig no longer
selects it, and hence many SDHCI drivers are no longer enabled.
Explicitly enable MMC_SDHCI_PLTFM to solve this.
Fixes: 5d01b7684b7e ("mmc: simplify SDHCI Kconfig dependencies")
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
of_get_flat_dt_prop return type is now const.
Fixes the following compilation warning introduced by commit 9d0c4dfedd96
("of/fdt: update of_get_flat_dt_prop in prep for libfdt")
arch/arm/mach-exynos/exynos.c:259:6: warning:
assignment discards ‘const’ qualifier from pointer target type [enabled by default]
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Tushar Behera <tushar.behera@linaro.org>
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This solves a problem with building with CONFIG_SMP=n due to missing
sysram_base_addr (or sysram_ns_base_addr) variables.
The new setup method is more awkward than I'd like for it to be, but
it can't be done in init_early() since ioremap is not yet available,
but it needs to happen before SMP.
Reported-by: Russell King <linux@arm.linux.org.uk>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The factory bootloader on A385-DB boards expect the ECC strength to be
4 bits over 512 bytes. Hence, we need to specify this in the devicetree,
to prevent the kernel from assuming any different ECC scheme.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Link: https://lkml.kernel.org/r/1400941030-2123-3-git-send-email-ezequiel.garcia@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
The factory bootloader on A375-DB boards expect the ECC strength to be
4 bits over 512 bytes. Hence, we need to specify this in the devicetree,
to prevent the kernel from assuming any different ECC scheme.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Link: https://lkml.kernel.org/r/1400941030-2123-2-git-send-email-ezequiel.garcia@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
The addition of Exynos to multi-platform configs creates a mess of config
options with options appearing before the Exynos config option. This is
due to arch/arm/plat-samsung/Kconfig being included out of order with the
other Samsung platform kconfig files. Reorder the kconfig files and move
all the options into a sub-menu. Some of the options are dead, so remove
those as well.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: linux-samsung-soc@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This config exists entirely to hide the cpufreq menu from the
kernel configuration unless a platform has selected it. Nothing
is actually built if this config is 'Y' and it just leads to more
patches that add a select under a platform Kconfig so that some
other CPUfreq option can be chosen. Let's remove the option so
that we can always enable CPUfreq drivers on ARM platforms.
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This addresses a section mismatch problem in the IM-PD1
driver in the Integrator/AP.
The IM-PD1 contains a VIC interrupt controller and therefore
the driver calls vic_init_cascaded() which is marked __init as
irqchips are simply not hot-pluggable and specifically the VIC
is assumed to initiate only on boot.
However the module driver model of the Integrator LM bus
assumes that logic tile drivers can be probed at runtime. This
is not really the case for IM-PD1: these tiles are detected at
boot and they cannot be plugged into a running system. Before
this patch it is of course possible to modprobe them later.
By first forcing the IM-PD1 to bool we make sure this driver
gets compiled into the kernel, and we know it will be probed
only at boot time when the tiles are detected, so we can tag
its probe function __init_refok as we know it won't be called
after boot now, and the section mismatch problem goes away.
As a side effect, sysfs binding from userspace becomes
impossible, so we tag the driver to suppress the bind/unbind
sysfs attributes.
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The OpenBlocks AX3-4 has a non-DT bootloader. It also comes with 1GB of
soldered on RAM, and a DIMM slot for expansion.
Unfortunately, atags_to_fdt() doesn't work in big-endian mode, so we see
the following failure when attempting to boot a big-endian kernel:
686 slab pages
17 pages shared
0 pages swap cached
[ pid ] uid tgid total_vm rss nr_ptes swapents oom_score_adj name
Kernel panic - not syncing: Out of memory and no killable processes...
CPU: 1 PID: 351 Comm: kworker/u4:0 Not tainted 3.15.0-rc8-next-20140603 #1
[<c0215a54>] (unwind_backtrace) from [<c021160c>] (show_stack+0x10/0x14)
[<c021160c>] (show_stack) from [<c0802500>] (dump_stack+0x78/0x94)
[<c0802500>] (dump_stack) from [<c0800068>] (panic+0x90/0x21c)
[<c0800068>] (panic) from [<c02b5704>] (out_of_memory+0x320/0x340)
[<c02b5704>] (out_of_memory) from [<c02b93a0>] (__alloc_pages_nodemask+0x874/0x930)
[<c02b93a0>] (__alloc_pages_nodemask) from [<c02d446c>] (handle_mm_fault+0x744/0x96c)
[<c02d446c>] (handle_mm_fault) from [<c02cf250>] (__get_user_pages+0xd0/0x4c0)
[<c02cf250>] (__get_user_pages) from [<c02f3598>] (get_arg_page+0x54/0xbc)
[<c02f3598>] (get_arg_page) from [<c02f3878>] (copy_strings+0x278/0x29c)
[<c02f3878>] (copy_strings) from [<c02f38bc>] (copy_strings_kernel+0x20/0x28)
[<c02f38bc>] (copy_strings_kernel) from [<c02f4f1c>] (do_execve+0x3a8/0x4c8)
[<c02f4f1c>] (do_execve) from [<c025ac10>] (____call_usermodehelper+0x15c/0x194)
[<c025ac10>] (____call_usermodehelper) from [<c020e9b8>] (ret_from_fork+0x14/0x3c)
CPU0: stopping
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.15.0-rc8-next-20140603 #1
[<c0215a54>] (unwind_backtrace) from [<c021160c>] (show_stack+0x10/0x14)
[<c021160c>] (show_stack) from [<c0802500>] (dump_stack+0x78/0x94)
[<c0802500>] (dump_stack) from [<c021429c>] (handle_IPI+0x138/0x174)
[<c021429c>] (handle_IPI) from [<c02087f0>] (armada_370_xp_handle_irq+0xb0/0xcc)
[<c02087f0>] (armada_370_xp_handle_irq) from [<c0212100>] (__irq_svc+0x40/0x50)
Exception stack(0xc0b6bf68 to 0xc0b6bfb0)
bf60: e9fad598 00000000 00f509a3 00000000 c0b6a000 c0b724c4
bf80: c0b72458 c0b6a000 00000000 00000000 c0b66da0 c0b6a000 00000000 c0b6bfb0
bfa0: c027bb94 c027bb24 60000313 ffffffff
[<c0212100>] (__irq_svc) from [<c027bb24>] (cpu_startup_entry+0x54/0x214)
[<c027bb24>] (cpu_startup_entry) from [<c0ac5b30>] (start_kernel+0x318/0x37c)
[<c0ac5b30>] (start_kernel) from [<00208078>] (0x208078)
---[ end Kernel panic - not syncing: Out of memory and no killable processes...
A similar failure will also occur if ARM_ATAG_DTB_COMPAT isn't selected.
Fix this by setting a sane default (1 GB) in the dts file.
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Tested-by: Kevin Hilman <khilman@linaro.org>
Cc: <stable@vger.kernel.org> #v3.13+
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The only remaining driver using the samsung dmadev code is the broken
samsung-ac97 sound driver. However, as found by Russell's autobuilder,
the elaborate dependency chains around it cause problems with
circular dependencies.
This is an attempt to simplify those dependencies by making the
SAMSUNG_DMADEV option user-selectable. I also try to keep the
default settings for all related options unchanged, so we don't
introduce any regressions against earlier testing on linux-next.
In particular, all s3c64xx and s5p* platforms keep selecting the
pl330 and pl08x drivers they require, but the select statement
is now moved towards the main platform option, and it remains
optional by unselecting CONFIG_DMADEVICES.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Kukjin Kim <kgene.kim@samsung.com>
The dynamic relocation that the keystone platform performs
only works if we can pick the phys offset at boot time. It's
possible that there is another solution for this, but this
is the easiest workaround. Kernels with ARM_PATCH_PHYS_VIRT
are not portable across platforms, and I see no reason why
anyone would run a kernel without ARM_PATCH_PHYS_VIRT on
keystone.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
