On 03/05/2019 01:41, Dan Williams wrote:
On Thu, May 2, 2019 at 7:53 AM Pavel Tatashin wrote:
On Wed, Apr 17, 2019 at 2:52 PM Dan Williams wrote:
Up-level the local section size and mask from kernel/memremap.c to
global definitions. These will be used by the new sub-section hotplug
On 30/05/18 18:00, Mikulas Patocka wrote:
Hi
I'd like to ask what's the purpose of dmb(osh) in the function
arch_wb_cache_pmem in arch/arm64/mm/flush.c?
void arch_wb_cache_pmem(void *addr, size_t size)
{
/* Ensure order against any prior non-cacheable writes */
dmb(osh);
in particular that those two drivers happen to be the *only* place
this approach could work - everyone else is going to have to fall back
to the generic IOMMU API function anyway.
Robin.
> Cc: Marek Szyprowski <m.szyprow...@samsung.com>
> Cc: Robin Murphy <robin.mur...@arm.com>
o they can be shared by NFIT
as well. This allows NFIT to be enabled for arm64.
Signed-off-by: Robin Murphy <robin.mur...@arm.com>
---
arch/x86/Kconfig | 1 -
arch/x86/include/asm/cacheflush.h | 2 --
drivers/acpi/nfit/Kconfig | 2 +-
drivers/acpi/nfit/core.c
On 30/08/17 19:25, Dave Jiang wrote:
> On 08/30/2017 11:18 AM, Robin Murphy wrote:
>> On 25/08/17 21:59, Dave Jiang wrote:
>>> Adding a dmaengine transaction operation that allows copy to/from a
>>> scatterlist and a flat buffer.
>>
>> Apologies if I'm late t
On 25/08/17 21:59, Dave Jiang wrote:
> Adding a dmaengine transaction operation that allows copy to/from a
> scatterlist and a flat buffer.
Apologies if I'm late to the party, but doesn't DMA_SG already cover
this use-case? As far as I can see, all this does is save the caller
from setting up a
On 04/08/17 19:09, Dan Williams wrote:
> On Fri, Aug 4, 2017 at 10:43 AM, Robin Murphy <robin.mur...@arm.com> wrote:
>> On 04/08/17 16:25, Catalin Marinas wrote:
>>> Two minor comments below.
>>>
>>> On Tue, Jul 25, 2017 at 11:55:42AM +0100, Robin M
On 04/08/17 16:25, Catalin Marinas wrote:
> Two minor comments below.
>
> On Tue, Jul 25, 2017 at 11:55:42AM +0100, Robin Murphy wrote:
>> --- a/arch/arm64/Kconfig
>> +++ b/arch/arm64/Kconfig
>> @@ -960,6 +960,17 @@ config ARM64_UAO
>>regular load/s
suitable hardware to put them in, so this is written purely
to spec - the extent of testing has been the feature detection on a
v8.2 Fast Model vs. v8.0 systems.
Patch #1 could go in as a fix ahead of the rest; it just needs to come
before patch #5 to prevent that blowing up the build.
Robin.
Robin
, and to make its relationship with __dma_inv_area()
neatly mirror that of __clean_dcache_area_poc() and __dma_clean_area().
The loop clearing the early page tables gets mildly massaged in the
process for the sake of consistency.
Signed-off-by: Robin Murphy <robin.mur...@arm.com>
---
arch
The ARMv8.2-DCPoP feature introduces persistent memory support to the
architecture, by defining a point of persistence in the memory
hierarchy, and a corresponding cache maintenance operation, DC CVAP.
Expose the support via HWCAP and MRS emulation.
Signed-off-by: Robin Murphy <robin.
Implement the set of copy functions with guarantees of a clean cache
upon completion necessary to support the pmem driver.
Signed-off-by: Robin Murphy <robin.mur...@arm.com>
---
arch/arm64/Kconfig | 1 +
arch/arm64/include/asm/string.h | 4
arch/arm64/inclu
Clearly, set_memory_valid() has never been seen in the same room as its
declaration... Whilst the type mismatch is such that kexec probably
wasn't broken in practice, fix it to match the definition as it should.
Fixes: 9b0aa14e3155 ("arm64: mm: add set_memory_valid()")
Signed-off-by: Ro
Add a clean-to-point-of-persistence cache maintenance helper, and wire
up the basic architectural support for the pmem driver based on it.
Signed-off-by: Robin Murphy <robin.mur...@arm.com>
---
arch/arm64/Kconfig | 11 +++
arch/arm64/include/asm/assembler.h
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