In MediaTek's IOMMU design, When a iommu translation fault occurs
(HW can NOT translate the destination address to a valid physical
address), the IOMMU HW output the dirty data into a special memory
to avoid corrupting the main memory, this is called "protect memory".
the register(0x114) for protec
On Sat, 2018-03-17 at 22:10 +0100, Sebastian Andrzej Siewior wrote:
> On 2018-03-17 14:49:54 [-0500], Scott Wood wrote:
> > On Fri, 2018-03-16 at 21:18 +0100, Sebastian Andrzej Siewior wrote:
> > > The goal here is to make the memory allocation in get_irq_table()
> > > not
> > > with disabled inter
On 2018-03-17 14:49:54 [-0500], Scott Wood wrote:
> On Fri, 2018-03-16 at 21:18 +0100, Sebastian Andrzej Siewior wrote:
> > The goal here is to make the memory allocation in get_irq_table() not
> > with disabled interrupts and having as little raw_spin_lock as
> > possible
> > while having them if
/Gary-R-Hook/Add-debugfs-info-for-the-AMD-IOMMU/20180317-232302
config: x86_64-allmodconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All warnings (new ones prefixed by >>):
d
On Fri, 2018-03-16 at 21:18 +0100, Sebastian Andrzej Siewior wrote:
> The goal here is to make the memory allocation in get_irq_table() not
> with disabled interrupts and having as little raw_spin_lock as
> possible
> while having them if the caller is also holding one (like desc->lock
> during IRQ
On Fri, 16 Mar 2018 14:51:41 +0100
Geert Uytterhoeven wrote:
> Remove dependencies on HAS_DMA where a Kconfig symbol depends on another
> symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST".
> In most cases this other symbol is an architecture or platform specific
> symbol, or PCI.
