On 5/24/23 02:29, David Rientjes wrote:
On Tue, 23 May 2023, Vlastimil Babka wrote:
As discussed at LSF/MM [1] [2] and with no objections raised there,
deprecate the SLAB allocator. Rename the user-visible option so that
users with CONFIG_SLAB=y get a new prompt with explanation during make
old
Rename 16KSTACKS to DEBUG_STACKS.
arch/arc/Kconfig.debug says that the default stack size is 8KB
and it will become 16KB stack if 16KSTACKS is set.
However, the stack size is based on PAGE_SIZE, and it is
configurable by CONFIG_ARC_PAGE_SIZE_16K or CONFIG_ARC_PAGE_SIZE_4K.
When CONFIG_16KSTACKS=y
Hi,
When I read the arch/arc code, I first noticed that the
definition of THREAD_SHIFT looks incorrect and the
description of 16KSTACKS looks confusing because there are
multiple definitions of PAGE_SHIFT. So I submit
these patches to address the issues I found.
Min-Hua Chen (2):
ARC: fix inco
Current definition of THREAD_SHIFT is (PAGE_SHIFT << THREAD_SIZE_ORDER)
It should be (PAGE_SHIFT + THREAD_SIZE_ORDER) because the following
equation should hold:
Say PAGE_SHIFT == 13 (as the default value in ARC)
THREAD_SIZE_ORDER == 1 (as CONFIG_16KSTACKS=y)
THREAD_SIZE == (1 << THREAD_SHIFT)
Hi Arnd,
On Mon, Mar 27, 2023 at 1:14 PM Arnd Bergmann wrote:
>
> From: Arnd Bergmann
>
> After a long discussion about adding SoC specific semantics for when
> to flush caches in drivers/soc/ drivers that we determined to be
> fundamentally flawed[1], I volunteered to try to move that logic int
