mirror of
https://github.com/torvalds/linux.git
synced 2024-12-04 01:51:34 +00:00
902861e34c
from hotplugged memory rather than only from main memory. Series
"implement "memmap on memory" feature on s390".
- More folio conversions from Matthew Wilcox in the series
"Convert memcontrol charge moving to use folios"
"mm: convert mm counter to take a folio"
- Chengming Zhou has optimized zswap's rbtree locking, providing
significant reductions in system time and modest but measurable
reductions in overall runtimes. The series is "mm/zswap: optimize the
scalability of zswap rb-tree".
- Chengming Zhou has also provided the series "mm/zswap: optimize zswap
lru list" which provides measurable runtime benefits in some
swap-intensive situations.
- And Chengming Zhou further optimizes zswap in the series "mm/zswap:
optimize for dynamic zswap_pools". Measured improvements are modest.
- zswap cleanups and simplifications from Yosry Ahmed in the series "mm:
zswap: simplify zswap_swapoff()".
- In the series "Add DAX ABI for memmap_on_memory", Vishal Verma has
contributed several DAX cleanups as well as adding a sysfs tunable to
control the memmap_on_memory setting when the dax device is hotplugged
as system memory.
- Johannes Weiner has added the large series "mm: zswap: cleanups",
which does that.
- More DAMON work from SeongJae Park in the series
"mm/damon: make DAMON debugfs interface deprecation unignorable"
"selftests/damon: add more tests for core functionalities and corner cases"
"Docs/mm/damon: misc readability improvements"
"mm/damon: let DAMOS feeds and tame/auto-tune itself"
- In the series "mm/mempolicy: weighted interleave mempolicy and sysfs
extension" Rakie Kim has developed a new mempolicy interleaving policy
wherein we allocate memory across nodes in a weighted fashion rather
than uniformly. This is beneficial in heterogeneous memory environments
appearing with CXL.
- Christophe Leroy has contributed some cleanup and consolidation work
against the ARM pagetable dumping code in the series "mm: ptdump:
Refactor CONFIG_DEBUG_WX and check_wx_pages debugfs attribute".
- Luis Chamberlain has added some additional xarray selftesting in the
series "test_xarray: advanced API multi-index tests".
- Muhammad Usama Anjum has reworked the selftest code to make its
human-readable output conform to the TAP ("Test Anything Protocol")
format. Amongst other things, this opens up the use of third-party
tools to parse and process out selftesting results.
- Ryan Roberts has added fork()-time PTE batching of THP ptes in the
series "mm/memory: optimize fork() with PTE-mapped THP". Mainly
targeted at arm64, this significantly speeds up fork() when the process
has a large number of pte-mapped folios.
- David Hildenbrand also gets in on the THP pte batching game in his
series "mm/memory: optimize unmap/zap with PTE-mapped THP". It
implements batching during munmap() and other pte teardown situations.
The microbenchmark improvements are nice.
- And in the series "Transparent Contiguous PTEs for User Mappings" Ryan
Roberts further utilizes arm's pte's contiguous bit ("contpte
mappings"). Kernel build times on arm64 improved nicely. Ryan's series
"Address some contpte nits" provides some followup work.
- In the series "mm/hugetlb: Restore the reservation" Breno Leitao has
fixed an obscure hugetlb race which was causing unnecessary page faults.
He has also added a reproducer under the selftest code.
- In the series "selftests/mm: Output cleanups for the compaction test",
Mark Brown did what the title claims.
- Kinsey Ho has added the series "mm/mglru: code cleanup and refactoring".
- Even more zswap material from Nhat Pham. The series "fix and extend
zswap kselftests" does as claimed.
- In the series "Introduce cpu_dcache_is_aliasing() to fix DAX
regression" Mathieu Desnoyers has cleaned up and fixed rather a mess in
our handling of DAX on archiecctures which have virtually aliasing data
caches. The arm architecture is the main beneficiary.
- Lokesh Gidra's series "per-vma locks in userfaultfd" provides dramatic
improvements in worst-case mmap_lock hold times during certain
userfaultfd operations.
- Some page_owner enhancements and maintenance work from Oscar Salvador
in his series
"page_owner: print stacks and their outstanding allocations"
"page_owner: Fixup and cleanup"
- Uladzislau Rezki has contributed some vmalloc scalability improvements
in his series "Mitigate a vmap lock contention". It realizes a 12x
improvement for a certain microbenchmark.
- Some kexec/crash cleanup work from Baoquan He in the series "Split
crash out from kexec and clean up related config items".
- Some zsmalloc maintenance work from Chengming Zhou in the series
"mm/zsmalloc: fix and optimize objects/page migration"
"mm/zsmalloc: some cleanup for get/set_zspage_mapping()"
- Zi Yan has taught the MM to perform compaction on folios larger than
order=0. This a step along the path to implementaton of the merging of
large anonymous folios. The series is named "Enable >0 order folio
memory compaction".
- Christoph Hellwig has done quite a lot of cleanup work in the
pagecache writeback code in his series "convert write_cache_pages() to
an iterator".
- Some modest hugetlb cleanups and speedups in Vishal Moola's series
"Handle hugetlb faults under the VMA lock".
- Zi Yan has changed the page splitting code so we can split huge pages
into sizes other than order-0 to better utilize large folios. The
series is named "Split a folio to any lower order folios".
- David Hildenbrand has contributed the series "mm: remove
total_mapcount()", a cleanup.
- Matthew Wilcox has sought to improve the performance of bulk memory
freeing in his series "Rearrange batched folio freeing".
- Gang Li's series "hugetlb: parallelize hugetlb page init on boot"
provides large improvements in bootup times on large machines which are
configured to use large numbers of hugetlb pages.
- Matthew Wilcox's series "PageFlags cleanups" does that.
- Qi Zheng's series "minor fixes and supplement for ptdesc" does that
also. S390 is affected.
- Cleanups to our pagemap utility functions from Peter Xu in his series
"mm/treewide: Replace pXd_large() with pXd_leaf()".
- Nico Pache has fixed a few things with our hugepage selftests in his
series "selftests/mm: Improve Hugepage Test Handling in MM Selftests".
- Also, of course, many singleton patches to many things. Please see
the individual changelogs for details.
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZfJpPQAKCRDdBJ7gKXxA
joxeAP9TrcMEuHnLmBlhIXkWbIR4+ki+pA3v+gNTlJiBhnfVSgD9G55t1aBaRplx
TMNhHfyiHYDTx/GAV9NXW84tasJSDgA=
=TG55
-----END PGP SIGNATURE-----
Merge tag 'mm-stable-2024-03-13-20-04' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- Sumanth Korikkar has taught s390 to allocate hotplug-time page frames
from hotplugged memory rather than only from main memory. Series
"implement "memmap on memory" feature on s390".
- More folio conversions from Matthew Wilcox in the series
"Convert memcontrol charge moving to use folios"
"mm: convert mm counter to take a folio"
- Chengming Zhou has optimized zswap's rbtree locking, providing
significant reductions in system time and modest but measurable
reductions in overall runtimes. The series is "mm/zswap: optimize the
scalability of zswap rb-tree".
- Chengming Zhou has also provided the series "mm/zswap: optimize zswap
lru list" which provides measurable runtime benefits in some
swap-intensive situations.
- And Chengming Zhou further optimizes zswap in the series "mm/zswap:
optimize for dynamic zswap_pools". Measured improvements are modest.
- zswap cleanups and simplifications from Yosry Ahmed in the series
"mm: zswap: simplify zswap_swapoff()".
- In the series "Add DAX ABI for memmap_on_memory", Vishal Verma has
contributed several DAX cleanups as well as adding a sysfs tunable to
control the memmap_on_memory setting when the dax device is
hotplugged as system memory.
- Johannes Weiner has added the large series "mm: zswap: cleanups",
which does that.
- More DAMON work from SeongJae Park in the series
"mm/damon: make DAMON debugfs interface deprecation unignorable"
"selftests/damon: add more tests for core functionalities and corner cases"
"Docs/mm/damon: misc readability improvements"
"mm/damon: let DAMOS feeds and tame/auto-tune itself"
- In the series "mm/mempolicy: weighted interleave mempolicy and sysfs
extension" Rakie Kim has developed a new mempolicy interleaving
policy wherein we allocate memory across nodes in a weighted fashion
rather than uniformly. This is beneficial in heterogeneous memory
environments appearing with CXL.
- Christophe Leroy has contributed some cleanup and consolidation work
against the ARM pagetable dumping code in the series "mm: ptdump:
Refactor CONFIG_DEBUG_WX and check_wx_pages debugfs attribute".
- Luis Chamberlain has added some additional xarray selftesting in the
series "test_xarray: advanced API multi-index tests".
- Muhammad Usama Anjum has reworked the selftest code to make its
human-readable output conform to the TAP ("Test Anything Protocol")
format. Amongst other things, this opens up the use of third-party
tools to parse and process out selftesting results.
- Ryan Roberts has added fork()-time PTE batching of THP ptes in the
series "mm/memory: optimize fork() with PTE-mapped THP". Mainly
targeted at arm64, this significantly speeds up fork() when the
process has a large number of pte-mapped folios.
- David Hildenbrand also gets in on the THP pte batching game in his
series "mm/memory: optimize unmap/zap with PTE-mapped THP". It
implements batching during munmap() and other pte teardown
situations. The microbenchmark improvements are nice.
- And in the series "Transparent Contiguous PTEs for User Mappings"
Ryan Roberts further utilizes arm's pte's contiguous bit ("contpte
mappings"). Kernel build times on arm64 improved nicely. Ryan's
series "Address some contpte nits" provides some followup work.
- In the series "mm/hugetlb: Restore the reservation" Breno Leitao has
fixed an obscure hugetlb race which was causing unnecessary page
faults. He has also added a reproducer under the selftest code.
- In the series "selftests/mm: Output cleanups for the compaction
test", Mark Brown did what the title claims.
- Kinsey Ho has added the series "mm/mglru: code cleanup and
refactoring".
- Even more zswap material from Nhat Pham. The series "fix and extend
zswap kselftests" does as claimed.
- In the series "Introduce cpu_dcache_is_aliasing() to fix DAX
regression" Mathieu Desnoyers has cleaned up and fixed rather a mess
in our handling of DAX on archiecctures which have virtually aliasing
data caches. The arm architecture is the main beneficiary.
- Lokesh Gidra's series "per-vma locks in userfaultfd" provides
dramatic improvements in worst-case mmap_lock hold times during
certain userfaultfd operations.
- Some page_owner enhancements and maintenance work from Oscar Salvador
in his series
"page_owner: print stacks and their outstanding allocations"
"page_owner: Fixup and cleanup"
- Uladzislau Rezki has contributed some vmalloc scalability
improvements in his series "Mitigate a vmap lock contention". It
realizes a 12x improvement for a certain microbenchmark.
- Some kexec/crash cleanup work from Baoquan He in the series "Split
crash out from kexec and clean up related config items".
- Some zsmalloc maintenance work from Chengming Zhou in the series
"mm/zsmalloc: fix and optimize objects/page migration"
"mm/zsmalloc: some cleanup for get/set_zspage_mapping()"
- Zi Yan has taught the MM to perform compaction on folios larger than
order=0. This a step along the path to implementaton of the merging
of large anonymous folios. The series is named "Enable >0 order folio
memory compaction".
- Christoph Hellwig has done quite a lot of cleanup work in the
pagecache writeback code in his series "convert write_cache_pages()
to an iterator".
- Some modest hugetlb cleanups and speedups in Vishal Moola's series
"Handle hugetlb faults under the VMA lock".
- Zi Yan has changed the page splitting code so we can split huge pages
into sizes other than order-0 to better utilize large folios. The
series is named "Split a folio to any lower order folios".
- David Hildenbrand has contributed the series "mm: remove
total_mapcount()", a cleanup.
- Matthew Wilcox has sought to improve the performance of bulk memory
freeing in his series "Rearrange batched folio freeing".
- Gang Li's series "hugetlb: parallelize hugetlb page init on boot"
provides large improvements in bootup times on large machines which
are configured to use large numbers of hugetlb pages.
- Matthew Wilcox's series "PageFlags cleanups" does that.
- Qi Zheng's series "minor fixes and supplement for ptdesc" does that
also. S390 is affected.
- Cleanups to our pagemap utility functions from Peter Xu in his series
"mm/treewide: Replace pXd_large() with pXd_leaf()".
- Nico Pache has fixed a few things with our hugepage selftests in his
series "selftests/mm: Improve Hugepage Test Handling in MM
Selftests".
- Also, of course, many singleton patches to many things. Please see
the individual changelogs for details.
* tag 'mm-stable-2024-03-13-20-04' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (435 commits)
mm/zswap: remove the memcpy if acomp is not sleepable
crypto: introduce: acomp_is_async to expose if comp drivers might sleep
memtest: use {READ,WRITE}_ONCE in memory scanning
mm: prohibit the last subpage from reusing the entire large folio
mm: recover pud_leaf() definitions in nopmd case
selftests/mm: skip the hugetlb-madvise tests on unmet hugepage requirements
selftests/mm: skip uffd hugetlb tests with insufficient hugepages
selftests/mm: dont fail testsuite due to a lack of hugepages
mm/huge_memory: skip invalid debugfs new_order input for folio split
mm/huge_memory: check new folio order when split a folio
mm, vmscan: retry kswapd's priority loop with cache_trim_mode off on failure
mm: add an explicit smp_wmb() to UFFDIO_CONTINUE
mm: fix list corruption in put_pages_list
mm: remove folio from deferred split list before uncharging it
filemap: avoid unnecessary major faults in filemap_fault()
mm,page_owner: drop unnecessary check
mm,page_owner: check for null stack_record before bumping its refcount
mm: swap: fix race between free_swap_and_cache() and swapoff()
mm/treewide: align up pXd_leaf() retval across archs
mm/treewide: drop pXd_large()
...
183 lines
4.9 KiB
Plaintext
183 lines
4.9 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
|
|
config NIOS2
|
|
def_bool y
|
|
select ARCH_32BIT_OFF_T
|
|
select ARCH_HAS_CPU_CACHE_ALIASING
|
|
select ARCH_HAS_DMA_PREP_COHERENT
|
|
select ARCH_HAS_SYNC_DMA_FOR_CPU
|
|
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
|
|
select ARCH_HAS_DMA_SET_UNCACHED
|
|
select ARCH_NO_SWAP
|
|
select COMMON_CLK
|
|
select TIMER_OF
|
|
select GENERIC_ATOMIC64
|
|
select GENERIC_CPU_DEVICES
|
|
select GENERIC_IRQ_PROBE
|
|
select GENERIC_IRQ_SHOW
|
|
select HAVE_ARCH_TRACEHOOK
|
|
select HAVE_ARCH_KGDB
|
|
select HAVE_PAGE_SIZE_4KB
|
|
select IRQ_DOMAIN
|
|
select LOCK_MM_AND_FIND_VMA
|
|
select MODULES_USE_ELF_RELA
|
|
select OF
|
|
select OF_EARLY_FLATTREE
|
|
select SOC_BUS
|
|
select SPARSE_IRQ
|
|
select USB_ARCH_HAS_HCD if USB_SUPPORT
|
|
select CPU_NO_EFFICIENT_FFS
|
|
select MMU_GATHER_NO_RANGE if MMU
|
|
|
|
config GENERIC_CSUM
|
|
def_bool y
|
|
|
|
config GENERIC_HWEIGHT
|
|
def_bool y
|
|
|
|
config GENERIC_CALIBRATE_DELAY
|
|
def_bool y
|
|
|
|
config NO_IOPORT_MAP
|
|
def_bool y
|
|
|
|
config FPU
|
|
def_bool n
|
|
|
|
menu "Kernel features"
|
|
|
|
source "kernel/Kconfig.hz"
|
|
|
|
config ARCH_FORCE_MAX_ORDER
|
|
int "Order of maximal physically contiguous allocations"
|
|
default "10"
|
|
help
|
|
The kernel page allocator limits the size of maximal physically
|
|
contiguous allocations. The limit is called MAX_PAGE_ORDER and it
|
|
defines the maximal power of two of number of pages that can be
|
|
allocated as a single contiguous block. This option allows
|
|
overriding the default setting when ability to allocate very
|
|
large blocks of physically contiguous memory is required.
|
|
|
|
Don't change if unsure.
|
|
|
|
endmenu
|
|
|
|
source "arch/nios2/platform/Kconfig.platform"
|
|
|
|
menu "Processor type and features"
|
|
|
|
config MMU
|
|
def_bool y
|
|
|
|
config NR_CPUS
|
|
int
|
|
default "1"
|
|
|
|
config NIOS2_ALIGNMENT_TRAP
|
|
bool "Catch alignment trap"
|
|
default y
|
|
help
|
|
Nios II CPUs cannot fetch/store data which is not bus aligned,
|
|
i.e., a 2 or 4 byte fetch must start at an address divisible by
|
|
2 or 4. Any non-aligned load/store instructions will be trapped and
|
|
emulated in software if you say Y here, which has a performance
|
|
impact.
|
|
|
|
comment "Boot options"
|
|
|
|
config CMDLINE_BOOL
|
|
bool "Default bootloader kernel arguments"
|
|
default y
|
|
|
|
config CMDLINE
|
|
string "Default kernel command string"
|
|
default ""
|
|
depends on CMDLINE_BOOL
|
|
help
|
|
On some platforms, there is currently no way for the boot loader to
|
|
pass arguments to the kernel. For these platforms, you can supply
|
|
some command-line options at build time by entering them here. In
|
|
other cases you can specify kernel args so that you don't have
|
|
to set them up in board prom initialization routines.
|
|
|
|
config CMDLINE_FORCE
|
|
bool "Force default kernel command string"
|
|
depends on CMDLINE_BOOL
|
|
help
|
|
Set this to have arguments from the default kernel command string
|
|
override those passed by the boot loader.
|
|
|
|
config NIOS2_CMDLINE_IGNORE_DTB
|
|
bool "Ignore kernel command string from DTB"
|
|
depends on CMDLINE_BOOL
|
|
depends on !CMDLINE_FORCE
|
|
default y
|
|
help
|
|
Set this to ignore the bootargs property from the devicetree's
|
|
chosen node and fall back to CMDLINE if nothing is passed.
|
|
|
|
config NIOS2_PASS_CMDLINE
|
|
bool "Passed kernel command line from u-boot"
|
|
help
|
|
Use bootargs env variable from u-boot for kernel command line.
|
|
will override "Default kernel command string".
|
|
Say N if you are unsure.
|
|
|
|
config NIOS2_BOOT_LINK_OFFSET
|
|
hex "Link address offset for booting"
|
|
default "0x00500000"
|
|
help
|
|
This option allows you to set the link address offset of the zImage.
|
|
This can be useful if you are on a board which has a small amount of
|
|
memory.
|
|
|
|
endmenu
|
|
|
|
menu "Advanced setup"
|
|
|
|
config ADVANCED_OPTIONS
|
|
bool "Prompt for advanced kernel configuration options"
|
|
|
|
comment "Default settings for advanced configuration options are used"
|
|
depends on !ADVANCED_OPTIONS
|
|
|
|
config NIOS2_KERNEL_MMU_REGION_BASE_BOOL
|
|
bool "Set custom kernel MMU region base address"
|
|
depends on ADVANCED_OPTIONS
|
|
help
|
|
This option allows you to set the virtual address of the kernel MMU region.
|
|
|
|
Say N here unless you know what you are doing.
|
|
|
|
config NIOS2_KERNEL_MMU_REGION_BASE
|
|
hex "Virtual base address of the kernel MMU region " if NIOS2_KERNEL_MMU_REGION_BASE_BOOL
|
|
default "0x80000000"
|
|
help
|
|
This option allows you to set the virtual base address of the kernel MMU region.
|
|
|
|
config NIOS2_KERNEL_REGION_BASE_BOOL
|
|
bool "Set custom kernel region base address"
|
|
depends on ADVANCED_OPTIONS
|
|
help
|
|
This option allows you to set the virtual address of the kernel region.
|
|
|
|
Say N here unless you know what you are doing.
|
|
|
|
config NIOS2_KERNEL_REGION_BASE
|
|
hex "Virtual base address of the kernel region " if NIOS2_KERNEL_REGION_BASE_BOOL
|
|
default "0xc0000000"
|
|
|
|
config NIOS2_IO_REGION_BASE_BOOL
|
|
bool "Set custom I/O region base address"
|
|
depends on ADVANCED_OPTIONS
|
|
help
|
|
This option allows you to set the virtual address of the I/O region.
|
|
|
|
Say N here unless you know what you are doing.
|
|
|
|
config NIOS2_IO_REGION_BASE
|
|
hex "Virtual base address of the I/O region" if NIOS2_IO_REGION_BASE_BOOL
|
|
default "0xe0000000"
|
|
|
|
endmenu
|