Use a call to local_irq_enable() instead of incline asm so that the
irqsoff latency tracer knows that interrupts are enabled here.
Signed-off-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

Add support irqflags tracing, which is required for things like lockdep
and ftrace.
Signed-off-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

CRIS' types.h is functionally identical to the asm-generic version.

Effective diff:

 +#ifndef _ASM_GENERIC_TYPES_H
 +#define _ASM_GENERIC_TYPES_H
 +
  #include <asm-generic/int-ll64.h>
 +
 +#endif
Signed-off-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

CRIS' shmbuf.h is equivalent to the asm-generic verison.

Effective diff:

 -#ifndef _CRIS_SHMBUF_H
 -#define _CRIS_SHMBUF_H
 +#ifndef __ASM_GENERIC_SHMBUF_H
 +#define __ASM_GENERIC_SHMBUF_H
 +
 +#include <asm/bitsperlong.h>

  	struct ipc64_perm	shm_perm;
  	size_t			shm_segsz;
  	__kernel_time_t		shm_atime;
 +#if __BITS_PER_LONG != 64
  	unsigned long		__unused1;
 +#endif
  	__kernel_time_t		shm_dtime;
 +#if __BITS_PER_LONG != 64
  	unsigned long		__unused2;
 +#endif
  	__kernel_time_t		shm_ctime;
 +#if __BITS_PER_LONG != 64
  	unsigned long		__unused3;
 +#endif
  	__kernel_pid_t		shm_cpid;
  	__kernel_pid_t		shm_lpid;
 -	unsigned long		shm_nattch;
 -	unsigned long		__unused4;
 -	unsigned long		__unused5;
 +	__kernel_ulong_t	shm_nattch;
 +	__kernel_ulong_t	__unused4;
 +	__kernel_ulong_t	__unused5;
  };

  struct shminfo64 {
 -	unsigned long	shmmax;
 -	unsigned long	shmmin;
 -	unsigned long	shmmni;
 -	unsigned long	shmseg;
 -	unsigned long	shmall;
 -	unsigned long	__unused1;
 -	unsigned long	__unused2;
 -	unsigned long	__unused3;
 -	unsigned long	__unused4;
 +	__kernel_ulong_t	shmmax;
 +	__kernel_ulong_t	shmmin;
 +	__kernel_ulong_t	shmmni;
 +	__kernel_ulong_t	shmseg;
 +	__kernel_ulong_t	shmall;
 +	__kernel_ulong_t	__unused1;
 +	__kernel_ulong_t	__unused2;
 +	__kernel_ulong_t	__unused3;
 +	__kernel_ulong_t	__unused4;
  };

  #endif
Signed-off-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

CRIS' msgbuf.h is equivalent to the asm-generic version.

Effective diff:

 -#ifndef _CRIS_MSGBUF_H
 -#define _CRIS_MSGBUF_H
 -
 -
 +#ifndef __ASM_GENERIC_MSGBUF_H
 +#define __ASM_GENERIC_MSGBUF_H

 +#include <asm/bitsperlong.h>

  struct msqid64_ds {
  	struct ipc64_perm msg_perm;
  	__kernel_time_t msg_stime;
 +#if __BITS_PER_LONG != 64
  	unsigned long	__unused1;
 +#endif
  	__kernel_time_t msg_rtime;
 +#if __BITS_PER_LONG != 64
  	unsigned long	__unused2;
 +#endif
  	__kernel_time_t msg_ctime;
 +#if __BITS_PER_LONG != 64
  	unsigned long	__unused3;
 -	unsigned long  msg_cbytes;
 -	unsigned long  msg_qnum;
 -	unsigned long  msg_qbytes;
 +#endif
 +	__kernel_ulong_t msg_cbytes;
 +	__kernel_ulong_t msg_qnum;
 +	__kernel_ulong_t msg_qbytes;
  	__kernel_pid_t msg_lspid;
  	__kernel_pid_t msg_lrpid;
 -	unsigned long  __unused4;
 -	unsigned long  __unused5;
 +	__kernel_ulong_t __unused4;
 +	__kernel_ulong_t __unused5;
  };

  #endif
Signed-off-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

CRIS' socket.h is equivalent to the asm-generic version.

Effective diff:

 -#ifndef _ASM_SOCKET_H
 -#define _ASM_SOCKET_H
 -
 -
 +#ifndef __ASM_GENERIC_SOCKET_H
 +#define __ASM_GENERIC_SOCKET_H

  #include <asm/sockios.h>

  #define SO_LINGER	13
  #define SO_BSDCOMPAT	14
  #define SO_REUSEPORT	15
 +#ifndef SO_PASSCRED
  #define SO_PASSCRED	16
  #define SO_PEERCRED	17
  #define SO_RCVLOWAT	18
  #define SO_SNDLOWAT	19
  #define SO_RCVTIMEO	20
  #define SO_SNDTIMEO	21
 +#endif

 #define SO_SECURITY_AUTHENTICATION		22
Signed-off-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

CRIS's sembuf.h is equivalent to the asm-generic version.
Effective diff:

 -#ifndef _CRIS_SEMBUF_H
 -#define _CRIS_SEMBUF_H
 +#ifndef __ASM_GENERIC_SEMBUF_H
 +#define __ASM_GENERIC_SEMBUF_H

 +#include <asm/bitsperlong.h>

  struct semid64_ds {
  	struct ipc64_perm sem_perm;
  	__kernel_time_t	sem_otime;
 +#if __BITS_PER_LONG != 64
  	unsigned long	__unused1;
 +#endif
  	__kernel_time_t	sem_ctime;
 +#if __BITS_PER_LONG != 64
  	unsigned long	__unused2;
 +#endif
  	unsigned long	sem_nsems;
  	unsigned long	__unused3;
  	unsigned long	__unused4;
Signed-off-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

CRIS' sockios.h is equivalent to the asm-generic version.

Effective diff:

 -#ifndef __ARCH_CRIS_SOCKIOS__
 -#define __ARCH_CRIS_SOCKIOS__
 +#ifndef __ASM_GENERIC_SOCKIOS_H
 +#define __ASM_GENERIC_SOCKIOS_H
Signed-off-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

CRIS's auxvec.h is empty just like the asm-generic version.

Effective diff:

 -#ifndef __ASMCRIS_AUXVEC_H
 -#define __ASMCRIS_AUXVEC_H
 +#ifndef __ASM_GENERIC_AUXVEC_H
 +#define __ASM_GENERIC_AUXVEC_H
 +
Signed-off-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

Use Kbuild magic to include the generic headers.
Signed-off-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

CRIS userspace (uClibc for one) expects asm/elf.h to be exported but
this header appears to have gone missing at some point.  Move it to
uapi/ and export it.
Signed-off-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

We're going to export asm/elf.h; remove its dependencies on the
non-exported asm/user.h and the unused asm/system.h include.
Signed-off-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

The exported ptrace.h header on CRIS references an "arch" directory
which does not exist.  Fix this by having the variants in the same
directory and including them conditionally, similar to other
architectures.
Signed-off-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

Fix a number of small issues visible when GPIO is enabled:

- Correct missing default for !ETRAXFS in Kconfig
- Remove information on number of bits for some Kconfigs
  related to the GPIO, they are different in ETRAX FS and ARTPEC-3
- Fix compile warning in ARTPEC-3 GPIO driver
Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

Squash the followng warnings

arch/cris/arch-v32/mach-fs/pinmux.c: In function 'crisv32_pinmux_alloc_fixed':
arch/cris/arch-v32/mach-fs/pinmux.c:104:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
arch/cris/arch-v32/mach-fs/pinmux.c: In function 'crisv32_pinmux_dealloc_fixed':
arch/cris/arch-v32/mach-fs/pinmux.c:238:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
arch/cris/arch-v32/mach-fs/pinmux.c: In function '__crisv32_pinmux_alloc':
arch/cris/arch-v32/mach-fs/pinmux.c:49:1: warning: control reaches end of non-void function [-Wreturn-type]
Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

The related warnings:

    CALL    scripts/checksyscalls.sh
  <stdin>:1229:2: warning: #warning syscall sched_setattr not implemented [-Wcpp]
  <stdin>:1232:2: warning: #warning syscall sched_getattr not implemented [-Wcpp]
  <stdin>:1235:2: warning: #warning syscall renameat2 not implemented [-Wcpp]
  <stdin>:1238:2: warning: #warning syscall seccomp not implemented [-Wcpp]
  <stdin>:1241:2: warning: #warning syscall getrandom not implemented [-Wcpp]
  <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp]
  <stdin>:1247:2: warning: #warning syscall bpf not implemented [-Wcpp]
  <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp]
Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: NJesper Nilsson <jespern@axis.com>

Support for verbose BUG reporting already exists, but the HAVE flag that
allows the option to be enabled is missing.
Signed-off-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NJesper Nilsson <jespern@axis.com>

Add an unreachable() in the BUG() implementations, to get rid of
several warnings similar to the one below:

 kernel/sched/core.c: In function 'pick_next_task':
 kernel/sched/core.c:2690:1: warning: control reaches end of non-void function [-Wreturn-type]
Signed-off-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NJesper Nilsson <jespern@axis.com>

Turn a kmalloc/memset into an equivalent kzalloc.
Doing so also move the zero'ing of the memory outside of a mutex.
Signed-off-by: NChristophe Jaillet <christophe.jaillet@wanadoo.fr>
Signed-off-by: NJesper Nilsson <jespern@axis.com>

The nomips16 has to be added both as function attribute and assembler
directive.

When only function attribute is specified, the compiler will inline the
function with -Os optimization.  The generated assembly code cannot be
correctly assembled because ISA mode switch has to be done through jump
instruction.

When only ".set nomips16" directive is used, the generated assembly code
will use MIPS32 code for the inline assembly template and MIPS16 for the
function return.  The compiled binary is invalid:

    00403100 <__arch_swab16>:
      403100:   7c0410a0    wsbh    v0,a0
      403104:   e820ea31    swc2    $0,-5583(at)

while correct code should be:

    00402650 <__arch_swab16>:
      402650:   7c0410a0    wsbh    v0,a0
      402654:   03e00008    jr  ra
      402658:   3042ffff    andi    v0,v0,0xffff
Signed-off-by: NYousong Zhou <yszhou4tech@gmail.com>
Cc: Chen Jie <chenj@lemote.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11087/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The "LD vmlinuz" line in the quiet build output is misaligned with the
rest of the output. Fix this.
Signed-off-by: NAlex Smith <alex.smith@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11019/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

handle_dsemul does not exist and it's not being used in the code at all
so remove its declaration. The deliberate DS emulation exception is
handled by the do_dsemulret C code.
Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10950/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

MIPS R6 introduced the following instruction:
Scalar Floating-Point Maximum and
Scalar Floating-Point argument with Maximum Absolute Value
MAX.fmt writes the maximum value of the inputs fs and ft to the
destination fd.
MAXA.fmt takes input arguments fs and ft and writes the argument with
the maximum absolute value to the destination fd.
Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10961/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

MIPS R6 introduced the following instruction:
Scalar Floating-Point Minimum and
Scalar Floating-Point argument with Minimum Absolute Value

MIN.fmt writes the minimum value of the inputs fs and ft to the
destination fd.
MINA.fmt takes input arguments fs and ft and writes the argument with
the minimum absolute value to the destination fd.
Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10960/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

MIPS R6 introduced the following instruction:
Stores in fd a bit mask reflecting the floating-point class of the
floating point scalar value fs.

CLASS.fmt: FPR[fd] = class(FPR[fs])
Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10959/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

MIPS R6 introduced the following instruction:
Floating-Point Round to Integral
Scalar floating-point round to integral floating point value.

RINT.fmt: FPR[fd] = round_int(FPR[fs])
Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10958/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

MIPS R6 introduced the following instruction:
Floating Point Fused Multiply Subtract:
MSUBF.fmt To perform a fused multiply-subtract of FP values.

MSUBF.fmt: FPR[fd] = FPR[fd] - (FPR[fs] x FPR[ft])
Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10957/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

MIPS R6 introduced the following instruction:
Floating Point Fused Multiply Add:
MADDF.fmt To perform a fused multiply-add of FP values.

MADDF.fmt: FPR[fd] = FPR[fd] + (FPR[fs] x FPR[ft])
Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10956/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

MIPS R6 introduced the following instruction:
SELNEZ.fmt: FPR[fd]  FPR[ft].bit0 ? FPR[fs] : 0

Add support for emulating the single and double precision
formats of the said instruction.
Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10955/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

MIPS R6 introduced the following instruction:
SELEQZ.fmt: FPR[fd]  FPR[ft].bit0 ? 0 : FPR[fs]

Add support for emulating the single and double precision formats
of the said instruction.
Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10954/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Add support for emulating the new CMP.condn.fmt R6 instructions and
return SIGILL for the old C.cond.fmt if R2 emulation is not enabled
since it's not supported by R6.

The functionality of the new CMP.condn.fmt is the following one:

If the comparison specified by the condn field of the instruction
is true for the operand values, the result is true; otherwise, the
result is false. If no exception is taken, the result is written into
FPR fd; true is all 1s and false is all 0s repeated the operand width
of fmt. All other bits beyond the operand width fmt are UNPREDICTABLE.
Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10953/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Add opcodes for the new MIPS R6 FPU instructions.
Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10952/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Management port MII address is incorrect on Kontron S1901 resulting
in broken networking. Fix by providing definitions for the in-tree DT
pruning code.
Signed-off-by: NAaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: NDavid Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10914/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The patch was generated using fixed coccinelle semantic patch
scripts/coccinelle/api/memdup.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2014320Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Acked-by: NHauke Mehrtens <hauke@hauke-m.de>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Rafał Miłecki <zajec5@gmail.com>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10898/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Add the support for mapping between interface/port numbers and IPD port
numbers also for the additional interfaces some Octeon II models have.
Signed-off-by: NJanne Huttunen <janne.huttunen@nokia.com>
Signed-off-by: NAaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: NDavid Daney <david.daney@cavium.com>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Janne Huttunen <janne.huttunen@nokia.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Patchwork: https://patchwork.linux-mips.org/patch/10967/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Use the internal port number also as the queue number on CN68XX.
Signed-off-by: NJanne Huttunen <janne.huttunen@nokia.com>
Signed-off-by: NAaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: NDavid Daney <david.daney@cavium.com>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Janne Huttunen <janne.huttunen@nokia.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Patchwork: https://patchwork.linux-mips.org/patch/10962/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

CN68XX requires a different PKO configuration. This patch provides
just enough setup to get the XAUI interfaces on CN6880 working with
default parameters.
Signed-off-by: NJanne Huttunen <janne.huttunen@nsn.com>
Signed-off-by: NAaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: NDavid Daney <david.daney@cavium.com>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Janne Huttunen <janne.huttunen@nokia.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Patchwork: https://patchwork.linux-mips.org/patch/10974/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

CN68XX has a bit different WQE structure. This patch provides the new
definitions and converts the code to use the proper variant based on
the actual model.
Signed-off-by: NJanne Huttunen <janne.huttunen@nokia.com>
Signed-off-by: NAaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: NDavid Daney <david.daney@cavium.com>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Janne Huttunen <janne.huttunen@nokia.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Patchwork: https://patchwork.linux-mips.org/patch/10973/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Some Octeon II models have SSO instead of POW and use a different register
for setting the interrupt thresholds. Add the necessary definitions for
configuring the interrupts also on those models.
Signed-off-by: NJanne Huttunen <janne.huttunen@nokia.com>
Signed-off-by: NAaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: NDavid Daney <david.daney@cavium.com>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Janne Huttunen <janne.huttunen@nokia.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Patchwork: https://patchwork.linux-mips.org/patch/10972/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>