- Add dispatcher layer
- Alias functions with assmebly
Change-Id: I84da1be539d890db0df64e5ea989b2fd1f276949
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
Some CPUs report "illegal instruction" error for the crc test because
they do not support the relevant optional feature . This can be fixed by
introducing CPU feature detection for AArch64 .
The difference with the x86 implementation is the dispatcher . It is based
on the glibc function `getauxval(AT_HWCAP)` and `getauxval(AT_HWCAP2)` , not
registers or instructions .
On a heterogeneous system (big.LITTLE) , it is dangerous to detect CPU
features using identification registers . And while it is possible to use
architectural feature registers from userspace on recent kernels, this
won't necessarily work with older platforms . Thus we use the HW_CAPs
exported from the kernel (and visible in getauxval) as the solution.
- According to kernel suggestion , getauxval should be used for this purpose .
- [CPU Feature detection](https://github.com/torvalds/linux/blob/master/Documentation/arm64/cpu-feature-registers.rst)
- According to AAPCS result/paramter registers should be saved/restore for function call
- [AAPCS](http://infocenter.arm.com/help/topic/com.arm.doc.ihi0055b/IHI0055B_aapcs64.pdf)
- [GLibc](https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=blob;f=sysdeps/aarch64/dl-trampoline.S)
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
Change-Id: Ic9abe0d2268ac95537e1abf10acc642fc58a5054
Build with Makefile.unx on unsupported CPUs fail . It reports
"undefine references". Fix it with adding base aliases files
into sources list
Change-Id: I9fbdeee7cb82edc9d5d8461bee3f648be83feaa6
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
convert_dist_to_dist_sym uses long if/else branch to get look back distance.
The distance calculation is well formed for each distance range, so it could
be optimized for a branchless version.
Change-Id: I4e1e5170f8b3238631f3048087f95acc53e4498e
Signed-off-by: Jun He <jun.he@arm.com>
Also test the assembler for modern instruction support and set appropriate
defines.
Change-Id: I1628abd50b3babeeb7e010b86bda7ea97de0e6fb
Signed-off-by: Greg Tucker <greg.b.tucker@intel.com>
Some arm64 machines don't support pmull instructions, so set these
crc interface to base functions. For long-term solution, will
provide better multi-binary support with cpu features detection.
Change-Id: I02791a2a50283dc8df2f9ba124eb309912b5b4b7
Signed-off-by: Zhiyuan Zhu <zhiyuan.zhu@arm.com>
Xenial has a minimum nasm version but no longer min indent.
Change-Id: I3ec70b9d5be932e903b77fd07d23667746c6c9f8
Signed-off-by: Greg Tucker <greg.b.tucker@intel.com>
Latest indent 2.2.12 has some changes and bug fixes including adding -sar to -kr
and recognizing size_t as a standard type.
Change-Id: Id613cfb3cebdbe8e9e8823236adb5ee6eb712229
Signed-off-by: Greg Tucker <greg.b.tucker@intel.com>
Remove unaligend data access in
write_deflate_header_unaligned_stateless
Change-Id: I7defa5621d8dc188edc51d22d29155ed3687c49d
Signed-off-by: Roy Oursler <roy.j.oursler@intel.com>
This patch addresses one build failure and fixes several build warnings
for Arm (some for x86 too).
- Fix dynamic relocation link failure of ld.bfd 2.30 on Arm
[log] relocation R_AARCH64_ADR_PREL_PG_HI21 against symbol `xor_gen_neon' which may bind externally can not be used when making a shared object
- Add arch dependent "other_tests" to exclude x86 specific tests on Arm
[log] isa-l/erasure_code/gf_2vect_dot_prod_sse_test.c:181: undefined reference to `gf_2vect_dot_prod_sse'
- Check "fread" return value to fix gcc warnings on Arm and x86
[log] warning: ignoring return value of ‘fread’, declared with attribute warn_unused_result [-Wunused-result]
fread(in_buf, 1, in_size, in_file);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Fix issue of comparing "char" with "int" on Arm. "char" is unsigned
on Arm by default, an unsigned char will never equal to EOF(-1).
[Log] programs/igzip_cli.c:318:31: warning: comparison is always true due to limited range of data type [-Wtype-limits]
while (tmp != '\n' && tmp != EOF)
^~
- Include <stdlib.h> to several files to fix build warnings on Arm
[log] igzip/igzip_inflate_perf.c:339:5: warning: incompatible implicit declaration of built-in function ‘exit’
exit(0);
^~~~
Change-Id: I82c1b63316b634b3d398ffba2ff815679d9051a8
Signed-off-by: Yibo Cai <yibo.cai@arm.com>
Remove igzip_stateless_file_perf as all the functionality is included in
igzip_perf
Change-Id: Icfd4dfd25af1a3a6c16fa2c3299d277c18f204d9
Signed-off-by: Roy Oursler <roy.j.oursler@intel.com>
Remove igzip_inflate_perf as all the functionality is duplicated in igzip_perf
Change-Id: I510cc4643a3949e2fa8f30309b5d45a249320b9e
Signed-off-by: Roy Oursler <roy.j.oursler@intel.com>
Remove gf_vect_mad_perf.c as it is architecture specific and does not provide
useful information in its current format.
Change-Id: I7819679db491a9b5572128e4fc05d989b870d22d
Signed-off-by: Roy Oursler <roy.j.oursler@intel.com>
Update Bitbuf to use stdmac and decrease register dependencies by replaces a sub
with an and.
Change-Id: Iaadf3c6ef7f533540a7adb57a418e9e80e9b8503
Signed-off-by: Roy Oursler <roy.j.oursler@intel.com>
