Changes in Makefile

a8f0c31f - xtensa: noMMU: allow handling protection faults

Tue, 10 Dec 2019 22:23:49 +0000

xtensa: noMMU: allow handling protection faultsMany xtensa CPU cores without full MMU still have memory protectionfeatures capable of raising exceptions for invalid instructionfetches/data access. Allow handling such exceptions. This improvesbehavior of processes that pass invalid memory pointers to syscalls innoMMU configs: in case of exception the kernel instead of killing theprocess is now able to return -EINVAL from a syscall.Introduce CONFIG_PFAULT that controls whether protection fault code isenabled and register handlers for common memory protection exceptionswhen it is enabled.Signed-off-by: Max Filippov List of files: /linux-6.15/arch/xtensa/mm/Makefile

ec8f24b7 - treewide: Add SPDX license identifier - Makefile/Kconfig

Sun, 19 May 2019 12:07:45 +0000

treewide: Add SPDX license identifier - Makefile/KconfigAdd SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any formThese files fall under the project license, GPL v2 only. The resulting SPDXlicense identifier is: GPL-2.0-onlySigned-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/arch/xtensa/mm/Makefile

c633544a - xtensa: add support for KASAN

Sun, 03 Dec 2017 21:28:52 +0000

xtensa: add support for KASANCover kernel addresses above 0x90000000 by the shadow map. EnableHAVE_ARCH_KASAN when MMU is enabled. Provide kasan_early_init that fillsshadow map with writable copies of kasan_zero_page. Callkasan_early_init right after mmu initialization in the setup_arch.Provide kasan_init that allocates proper shadow map pages from thememblock and puts these pages into the shadow map for addresses fromVMALLOC area to the end of KSEG. Call kasan_init right after memblockinitialization. Don't use KASAN for the boot code, MMU and KASANinitialization and page fault handler. Make kernel stack size 4 timeslarger when KASAN is enabled to avoid stack overflows.GCC 7.3, 8 or newer is required to build the xtensa kernel with KASAN.Signed-off-by: Max Filippov List of files: /linux-6.15/arch/xtensa/mm/Makefile

5bb8def5 - xtensa: support ioremap for memory outside KIO region

Fri, 11 Dec 2015 01:05:27 +0000

xtensa: support ioremap for memory outside KIO regionMap physical memory outside KIO region into the vmalloc area.Unmap it with vunmap.Signed-off-by: Max Filippov List of files: /linux-6.15/arch/xtensa/mm/Makefile

b6cee17b - xtensa: nommu: don't build most of the cache flushing code

Mon, 22 Sep 2014 05:54:42 +0000

xtensa: nommu: don't build most of the cache flushing codeMost cache flushing code is only relevant for MMU. Don't build it fornommu configuration.Signed-off-by: Max Filippov List of files: /linux-6.15/arch/xtensa/mm/Makefile

65559100 - xtensa: add HIGHMEM support

Mon, 03 Feb 2014 22:17:09 +0000

xtensa: add HIGHMEM supportIntroduce fixmap area just below the vmalloc region. Use it for atomicmapping of high memory pages.High memory on cores with cache aliasing is not supported and is stillto be implemented. Fail build for such configurations for now.Signed-off-by: Max Filippov List of files: /linux-6.15/arch/xtensa/mm/Makefile

e5083a63 - xtensa: nommu support

Wed, 04 Mar 2009 15:21:31 +0000

xtensa: nommu supportAdd support for !CONFIG_MMU setups.Signed-off-by: Johannes Weiner Signed-off-by: Chris Zankel List of files: /linux-6.15/arch/xtensa/mm/Makefile

d3883ece - Remove references to "make dep"

Sun, 11 Nov 2007 06:48:25 +0000

Remove references to "make dep""make dep" is no longer required in kernel 2.6, but was still mentionedin some places.Signed-off-by: Adrian Bunk Signed-off-by: Sam Ravnborg List of files: /linux-6.15/arch/xtensa/mm/Makefile

6656920b - [XTENSA] Add support for cache-aliasing

Wed, 22 Aug 2007 17:14:51 +0000

[XTENSA] Add support for cache-aliasingAdd support for processors that have cache-aliasing issues, such asthe Stretch S5000 processor. Cache-aliasing means that the size ofthe cache (for one way) is larger than the page size, thus, a pagecan end up in several places in cache depending on the virtual tophysical translation. The method used here is to map a user pagetemporarily through the auto-refill way 0 and of of the DTLB.We probably will want to revisit this issue and use a betterapproach with kmap/kunmap.Signed-off-by: Chris Zankel List of files: /linux-6.15/arch/xtensa/mm/Makefile

3f65ce4d - [PATCH] xtensa: Architecture support for Tensilica Xtensa Part 5

Fri, 24 Jun 2005 05:01:24 +0000

[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 5The attached patches provides part 5 of an architecture implementation for theTensilica Xtensa CPU series.Signed-off-by: Chris Zankel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/xtensa/mm/Makefile