linux-toradex.git/arch/mips, branch v4.4-rc6

MIPS: fix DMA contiguous allocation

2015-12-12T18:15:34+00:00

Recent changes to how GFP_ATOMIC is defined seems to have broken the
condition to use mips_alloc_from_contiguous() in
mips_dma_alloc_coherent().

I couldn't bottom out the exact change but I think it's this commit
d0164adc89f6 ("mm, page_alloc: distinguish between being unable to
sleep, unwilling to sleep and avoiding waking kswapd").

GFP_ATOMIC has multiple bits set and the check for !(gfp & GFP_ATOMIC)
isn't enough.

The reason behind this condition is to check whether we can potentially
do a sleeping memory allocation.  Use gfpflags_allow_blocking() instead
which should be more robust.

Signed-off-by: Qais Yousef 
Acked-by: Mel Gorman 
Cc: Ralf Baechle 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

2015-11-30T01:24:35+00:00

Pull MIPS fix from Ralf Baechle:
 "Just a fix for empty loops that may be removed by non-antique GCC"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: Fix delay loops which may be removed by GCC.

MIPS: Fix delay loops which may be removed by GCC.

2015-11-27T18:20:37+00:00

GCC 4.1 and newer remove empty loops.  This becomes a problem when delay
loops get removed.  Fixed by rewriting to user the proper Linux interface
for such delays.

Signed-off-by: Ralf Baechle 
Reported-by: Rasmus Villemoes 
Acked-by: John Crispin

Merge tag 'kvm-arm-for-v4.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master

2015-11-24T18:34:40+00:00

KVM/ARM Fixes for v4.4-rc3.

Includes some timer fixes, properly unmapping PTEs, an errata fix, and two
tweaks to the EL2 panic code.

MIPS: ath79: Add a machine entry for booting OF machines

2015-11-20T14:44:57+00:00

As I'm using a board with a broken old bootloader I hardcoded the
mips_machtype and did't notice that the machine entry was still
missing.

[ralf@linux-mips.org: Fixed spelling message noticed by Sergei Shtylyov
.]

Signed-off-by: Alban Bedel 
Cc: Qais Yousef 
Cc: Felix Fietkau 
Cc: Andrew Bresticker 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11503/
Signed-off-by: Ralf Baechle

MIPS: ath79: Fix the size of the MISC INTC registers in ar9132.dtsi

2015-11-20T11:14:27+00:00

There is 2 registers that is 8 bytes long, not 4.

Signed-off-by: Alban Bedel 
Cc: Thomas Gleixner 
Cc: Jason Cooper 
Cc: Marc Zyngier 
Cc: Alexander Couzens 
Cc: Joel Porquet 
Cc: Andrew Bresticker 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11508/
Signed-off-by: Ralf Baechle

MIPS: ath79: Fix the DDR control initialization on ar71xx and ar934x

2015-11-20T11:10:09+00:00

The DDR control initialization needs to know the SoC type, however
ath79_detect_sys_type() was called after ath79_ddr_ctrl_init().
Reverse the order to fix the DDR control initialization on ar71xx and
ar934x.

Signed-off-by: Alban Bedel 
Cc: Felix Fietkau 
Cc: Qais Yousef 
Cc: Andrew Bresticker 
CC: stable@vger.kernel.org # v4.2+
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11500/
Signed-off-by: Ralf Baechle

MIPS: KVM: Uninit VCPU in vcpu_create error path

2015-11-18T11:25:36+00:00

If either of the memory allocations in kvm_arch_vcpu_create() fail, the
vcpu which has been allocated and kvm_vcpu_init'd doesn't get uninit'd
in the error handling path. Add a call to kvm_vcpu_uninit() to fix this.

Fixes: 669e846e6c4e ("KVM/MIPS32: MIPS arch specific APIs for KVM")
Signed-off-by: James Hogan 
Cc: Ralf Baechle 
Cc: Paolo Bonzini 
Cc: Gleb Natapov 
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Cc:  # 3.10.x-
Signed-off-by: Paolo Bonzini

MIPS: KVM: Fix CACHE immediate offset sign extension

2015-11-18T11:25:36+00:00

The immediate field of the CACHE instruction is signed, so ensure that
it gets sign extended by casting it to an int16_t rather than just
masking the low 16 bits.

Fixes: e685c689f3a8 ("KVM/MIPS32: Privileged instruction/target branch emulation.")
Signed-off-by: James Hogan 
Cc: Ralf Baechle 
Cc: Paolo Bonzini 
Cc: Gleb Natapov 
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Cc:  # 3.10.x-
Signed-off-by: Paolo Bonzini

MIPS: KVM: Fix ASID restoration logic

2015-11-18T11:25:35+00:00

ASID restoration on guest resume should determine the guest execution
mode based on the guest Status register rather than bit 30 of the guest
PC.

Fix the two places in locore.S that do this, loading the guest status
from the cop0 area. Note, this assembly is specific to the trap &
emulate implementation of KVM, so it doesn't need to check the
supervisor bit as that mode is not implemented in the guest.

Fixes: b680f70fc111 ("KVM/MIPS32: Entry point for trampolining to...")
Signed-off-by: James Hogan 
Cc: Ralf Baechle 
Cc: Paolo Bonzini 
Cc: Gleb Natapov 
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Cc:  # 3.10.x-
Signed-off-by: Paolo Bonzini