linux/arch/xtensa/Kconfig.debug, branch v4.9Mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
https://git.shady.money/linux/atom?h=v4.92014-12-16T07:47:24Zxtensa: disable link optimization2014-12-16T07:47:24ZChris Zankelchris@zankel.net2014-12-16T05:22:21Zurn:sha1:1f2fdbd0078cb2ad4251768e8c0e0bb652a2cbd6
The default linker behavior is to optimize identical literal values
and remove unnecessary overhead. However, because of a bug in the
linker, this currently results in an error ('call target out of range').
Disable link-time optimizations per default until there is a fix
for the linker and add the option to iss_defconfig.
Signed-off-by: Chris Zankel <chris@zankel.net>
xtensa: nommu: add MMU dependency to DEBUG_TLB_SANITY2014-10-21T09:28:51ZMax Filippovjcmvbkbc@gmail.com2014-10-02T16:52:56Zurn:sha1:be603092ccc09f2d5ecf64cdf3c702b332a5dde3
TLB sanity checking code depends on full MMU presence and may not be
built in noMMU confgiuration.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: check TLB sanity on return to userspace2013-07-08T08:18:56ZMax Filippovjcmvbkbc@gmail.com2013-05-15T15:34:05Zurn:sha1:a99e07ee5e887750f5136bc6799abe47a56fd2c9
- check that user TLB mappings correspond to the current page table;
- check that TLB mapping VPN is in the kernel/user address range
in accordance with its ASID.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
xtensa: add s32c1i sanity check2012-12-19T05:10:22ZMax Filippovjcmvbkbc@gmail.com2012-11-28T07:33:02Zurn:sha1:00273125c39be9cbf619aef90147354a9ed8c385
Add a brief sanity test of S32C1I functionality. This instruction
is needed by the kernel and userland as part of the base ABI
(including GCC atomic builtins, certain threading packages, future
atomic support in the C++ standard, etc). However, correct operation
of this instruction requires some cooperation by hardware external to
the processor (such as bus bridge, bus fabric, or memory controller).
Minimally exercising this mechanism and reporting explicit status
early in the boot process is helpful to chip vendors using the Linux
kernel as a benchmark of correctness of hardware.
As it turns out, S32C1I is not exercised by the kernel and by uClibc
based userland as of early June 2008. This is expected to change
soon as both incorporate more recent open source developments.
Signed-off-by: Marc Gauthier <marc@tensilica.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
xtensa: add config option to disable linker relaxation2012-12-19T05:10:20ZChris Zankelchris@zankel.net2012-11-13T23:16:36Zurn:sha1:6550162200b40d1e725167f8a617255c42b57552
The default linker behavior is to optimize identical literal values and
remove unnecessary overhead from assembler-generated "longcall" sequences
to reduce code size. Provide an option to disable this behavior to improve
compile time.
Signed-off-by: Chris Zankel <chris@zankel.net>
[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 12005-06-24T07:05:21ZChris Zankelczankel@tensilica.com2005-06-24T05:01:10Zurn:sha1:8e1a6dd2fddcc73c9e933758361e3d9c076c688a
The attached patches provides part 1 of an architecture implementation for the
Tensilica Xtensa CPU series.
Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>