On 03.06.19 11:06, David Hildenbrand wrote: > This is the final part of vector instruction support for s390x. > > Part 1: Vector Support Instructions > Part 2: Vector Integer Instructions > Part 3: Vector String Instructions > Part 4: Vector Floating-Point Instructions > > The current state can be found at (kept updated): > https://github.com/davidhildenbrand/qemu/tree/vx > > It is based on: > - [PATCH v2 0/5] s390x/tcg: Vector Instruction Support Part 3 > - [PATCH v1 0/2] s390x: Fix vector register alignment > > With the current state I can boot Linux kernel + user space compiled with > SIMD support. This allows to boot distributions compiled exclusively for > z13, requiring SIMD support. Also, it is now possible to build a complete > kernel using rpmbuild as quite some issues have been sorted out. > > While the current state works fine for me with RHEL 8, I am experiencing > some issues with newer userspace versions. I already found and fixed > some stack overflow protection issues (stfle instruction). I still see > random rpm database corruptions and rpmbuild doesn't work correctly > (looks like another stack protection issue). > > In this part, all Vector Floating-Point Instructions introduced with the > "Vector Facility" are added. Also, the "qemu" model is changed to a > z13 machine. > > v1 -> v2: > - get rid of make_float64() and float64_val(). > - fixed two cc calculation issues (thanks Richard) > - Rework "VECTOR FP COMPARE (EQUAL|HIGH|HIGH OR EQUAL)" > - Rework "VECTOR FP MULTIPLY AND (ADD|SUBTRACT)" > - Use gvec expansion in "s390x/tcg: Implement VECTOR FP PERFORM SIGN > OPERATION" > > Cc: Denys Vlasenko <dvlas...@redhat.com> > Cc: Christian Borntraeger <borntrae...@de.ibm.com> > Cc: Pino Toscano <ptosc...@redhat.com> > > David Hildenbrand (22): > s390x/tcg: Store only the necessary amount of doublewords for STFLE > s390x/tcg: Introduce tcg_s390_vector_exception() > s390x/tcg: Export float_comp_to_cc() and float(32|64|128)_dcmask() > s390x/tcg: Implement VECTOR FP ADD > s390x/tcg: Implement VECTOR FP COMPARE (AND SIGNAL) SCALAR > s390x/tcg: Implement VECTOR FP COMPARE (EQUAL|HIGH|HIGH OR EQUAL) > s390x/tcg: Implement VECTOR FP CONVERT FROM FIXED 64-BIT > s390x/tcg: Implement VECTOR FP CONVERT FROM LOGICAL 64-BIT > s390x/tcg: Implement VECTOR FP CONVERT TO FIXED 64-BIT > s390x/tcg: Implement VECTOR FP CONVERT TO LOGICAL 64-BIT > s390x/tcg: Implement VECTOR FP DIVIDE > s390x/tcg: Implement VECTOR LOAD FP INTEGER > s390x/tcg: Implement VECTOR LOAD LENGTHENED > s390x/tcg: Implement VECTOR LOAD ROUNDED > s390x/tcg: Implement VECTOR FP MULTIPLY > s390x/tcg: Implement VECTOR FP MULTIPLY AND (ADD|SUBTRACT) > s390x/tcg: Implement VECTOR FP PERFORM SIGN OPERATION > s390x/tcg: Implement VECTOR FP SQUARE ROOT > s390x/tcg: Implement VECTOR FP SUBTRACT > s390x/tcg: Implement VECTOR FP TEST DATA CLASS IMMEDIATE > s390x/tcg: Allow linux-user to use vector instructions > s390x/tcg: We support the Vector Facility > > target/s390x/Makefile.objs | 1 + > target/s390x/cpu.c | 3 + > target/s390x/cpu.h | 1 + > target/s390x/excp_helper.c | 15 + > target/s390x/fpu_helper.c | 4 +- > target/s390x/gen-features.c | 1 + > target/s390x/helper.h | 46 +++ > target/s390x/insn-data.def | 45 +++ > target/s390x/internal.h | 4 + > target/s390x/misc_helper.c | 8 +- > target/s390x/tcg_s390x.h | 2 + > target/s390x/translate_vx.inc.c | 284 +++++++++++++++ > target/s390x/vec_fpu_helper.c | 625 ++++++++++++++++++++++++++++++++ > 13 files changed, 1036 insertions(+), 3 deletions(-) > create mode 100644 target/s390x/vec_fpu_helper.c >
Still tired, the unchanged patch "[PATCH v1 23/23] s390x: Bump the "qemu" CPU model up to a stripped-down z13" is missing from this series (already reviewed by Richard) -- Thanks, David / dhildenb
