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unicorn/qemu/target-i386/helper.h
Emilio G. Cota 3dc16ebca3
target-i386: remove helper_lock() 
It's been superseded by the atomic helpers.

The use of the atomic helpers provides a significant performance and scalability
improvement. Below is the result of running the atomic_add-test microbenchmark with:
$ x86_64-linux-user/qemu-x86_64 tests/atomic_add-bench -o 5000000 -r $r -n $n
, where $n is the number of threads and $r is the allowed range for the additions.

The scenarios measured are:
- atomic: implements x86' ADDL with the atomic_add helper (i.e. this patchset)
- cmpxchg: implement x86' ADDL with a TCG loop using the cmpxchg helper
- master: before this patchset

Results sorted in ascending range, i.e. descending degree of contention.
Y axis is Throughput in Mops/s. Tests are run on an AMD machine with 64
Opteron 6376 cores.

atomic_add-bench: 5000000 ops/thread, [0,1] range

25 ++---------+----------+---------+----------+----------+----------+---++
+ atomic +-E--+ + + + + + |
|cmpxchg +-H--+ |
20 +Emaster +-N--+ ++
|| |
|++ |
|| |
15 +++ ++
|N| |
|+| |
10 ++| ++
|+|+ |
| | -+E+------ +++ ---+E+------+E+------+E+-----+E+------+E|
|+E+E+- +++ +E+------+E+-- |
5 ++|+ ++
|+N+H+--- +++ |
++++N+--+H++----+++ + +++ --++H+------+H+------+H++----+H+---+--- |
0 ++---------+-----H----+---H-----+----------+----------+----------+---H+
0 10 20 30 40 50 60
Number of threads

atomic_add-bench: 5000000 ops/thread, [0,2] range

25 ++---------+----------+---------+----------+----------+----------+---++
++atomic +-E--+ + + + + + |
|cmpxchg +-H--+ |
20 ++master +-N--+ ++
|E| |
|++ |
||E |
15 ++| ++
|N|| |
|+|| ---+E+------+E+-----+E+------+E|
10 ++| | ---+E+------+E+-----+E+--- +++ +++
||H+E+--+E+-- |
|+++++ |
| || |
5 ++|+H+-- +++ ++
|+N+ - ---+H+------+H+------ |
+ +N+--+H++----+H+---+--+H+----++H+--- + + +H+---+--+H|
0 ++---------+----------+---------+----------+----------+----------+---++
0 10 20 30 40 50 60
Number of threads

atomic_add-bench: 5000000 ops/thread, [0,8] range

40 ++---------+----------+---------+----------+----------+----------+---++
++atomic +-E--+ + + + + + |
35 +cmpxchg +-H--+ ++
| master +-N--+ ---+E+------+E+------+E+-----+E+------+E|
30 ++| ---+E+-- +++ ++
| | -+E+--- |
25 ++E ---- +++ ++
|+++++ -+E+ |
20 +E+ E-- +++ ++
|H|+++ |
|+| +H+------- |
15 ++H+ ---+++ +H+------ ++
|N++H+-- +++--- +H+------++|
10 ++ +++ - +++ ---+H+ +++ +H+
| | +H+-----+H+------+H+-- |
5 ++| +++ ++
++N+N+--+N++ + + + + + |
0 ++---------+----------+---------+----------+----------+----------+---++
0 10 20 30 40 50 60
Number of threads

atomic_add-bench: 5000000 ops/thread, [0,128] range

160 ++---------+---------+----------+---------+----------+----------+---++
+ atomic +-E--+ + + + + + |
140 +cmpxchg +-H--+ +++ +++ ++
| master +-N--+ E--------E------+E+------++|
120 ++ --| | +++ E+
| -- +++ +++ ++|
100 ++ - ++
| +++- +++ ++|
80 ++ -+E+ -+H+------+H+------H--------++
| ---- ---- +++ H|
| ---+E+-----+E+- ---+H+ ++|
60 ++ +E+--- +++ ---+H+--- ++
| --+++ ---+H+-- |
40 ++ +E+-+H+--- ++
| +H+ |
20 +EE+ ++
+N+ + + + + + + |
0 ++N-N---N--+---------+----------+---------+----------+----------+---++
0 10 20 30 40 50 60
Number of threads

atomic_add-bench: 5000000 ops/thread, [0,1024] range

350 ++---------+---------+----------+---------+----------+----------+---++
+ atomic +-E--+ + + + + + |
300 +cmpxchg +-H--+ +++
| master +-N--+ +++ ||
| +++ | ----E|
250 ++ | ----E---- ++
| ----E--- | ---+H|
200 ++ -+E+--- +++ ---+H+--- ++
| ---- -+H+-- |
| +E+ +++ ---- +++ |
150 ++ ---+++ ---+H+- ++
| --- -+H+-- |
100 ++ ---+E+ ---- +++ ++
| +++ ---+E+-----+H+- |
| -+E+------+H+-- |
50 ++ +E+ ++
+EE+ + + + + + + |
0 ++N-N---N--+---------+----------+---------+----------+----------+---++
0 10 20 30 40 50 60
Number of threads

hi-res: http://imgur.com/a/fMRmq

For master I stopped measuring master after 8 threads, because there is little
point in measuring the well-known performance collapse of a contended lock.

Backports commit 37b995f6e7a1cb6fa378c5cd4217b9dd9e1fc98b from qemu
2018-02-27 23:43:22 -05:00

239 lines
8.3 KiB
C
Raw Blame History

DEF_HELPER_4(uc_tracecode, void, i32, i32, ptr, i64)
DEF_HELPER_FLAGS_4(cc_compute_all, TCG_CALL_NO_RWG_SE, tl, tl, tl, tl, int)
DEF_HELPER_FLAGS_4(cc_compute_c, TCG_CALL_NO_RWG_SE, tl, tl, tl, tl, int)
DEF_HELPER_3(write_eflags, void, env, tl, i32)
DEF_HELPER_1(read_eflags, tl, env)
DEF_HELPER_2(divb_AL, void, env, tl)
DEF_HELPER_2(idivb_AL, void, env, tl)
DEF_HELPER_2(divw_AX, void, env, tl)
DEF_HELPER_2(idivw_AX, void, env, tl)
DEF_HELPER_2(divl_EAX, void, env, tl)
DEF_HELPER_2(idivl_EAX, void, env, tl)
#ifdef TARGET_X86_64
DEF_HELPER_2(divq_EAX, void, env, tl)
DEF_HELPER_2(idivq_EAX, void, env, tl)
#endif
DEF_HELPER_FLAGS_2(cr4_testbit, TCG_CALL_NO_WG, void, env, i32)
DEF_HELPER_FLAGS_2(bndck, TCG_CALL_NO_WG, void, env, i32)
DEF_HELPER_FLAGS_3(bndldx32, TCG_CALL_NO_WG, i64, env, tl, tl)
DEF_HELPER_FLAGS_3(bndldx64, TCG_CALL_NO_WG, i64, env, tl, tl)
DEF_HELPER_FLAGS_5(bndstx32, TCG_CALL_NO_WG, void, env, tl, tl, i64, i64)
DEF_HELPER_FLAGS_5(bndstx64, TCG_CALL_NO_WG, void, env, tl, tl, i64, i64)
DEF_HELPER_1(bnd_jmp, void, env)
DEF_HELPER_2(aam, void, env, int)
DEF_HELPER_2(aad, void, env, int)
DEF_HELPER_1(aaa, void, env)
DEF_HELPER_1(aas, void, env)
DEF_HELPER_1(daa, void, env)
DEF_HELPER_1(das, void, env)
DEF_HELPER_2(lsl, tl, env, tl)
DEF_HELPER_2(lar, tl, env, tl)
DEF_HELPER_2(verr, void, env, tl)
DEF_HELPER_2(verw, void, env, tl)
DEF_HELPER_2(lldt, void, env, int)
DEF_HELPER_2(ltr, void, env, int)
DEF_HELPER_3(load_seg, void, env, int, int)
DEF_HELPER_4(ljmp_protected, void, env, int, tl, tl)
DEF_HELPER_5(lcall_real, void, env, int, tl, int, int)
DEF_HELPER_5(lcall_protected, void, env, int, tl, int, tl)
DEF_HELPER_2(iret_real, void, env, int)
DEF_HELPER_3(iret_protected, void, env, int, int)
DEF_HELPER_3(lret_protected, void, env, int, int)
DEF_HELPER_2(read_crN, tl, env, int)
DEF_HELPER_3(write_crN, void, env, int, tl)
DEF_HELPER_2(lmsw, void, env, tl)
DEF_HELPER_1(clts, void, env)
DEF_HELPER_FLAGS_3(set_dr, TCG_CALL_NO_WG, void, env, int, tl)
DEF_HELPER_FLAGS_2(get_dr, TCG_CALL_NO_WG, tl, env, int)
DEF_HELPER_2(invlpg, void, env, tl)
DEF_HELPER_2(sysenter, void, env, int)
DEF_HELPER_2(sysexit, void, env, int)
#ifdef TARGET_X86_64
DEF_HELPER_2(syscall, void, env, int)
DEF_HELPER_2(sysret, void, env, int)
#endif
DEF_HELPER_2(hlt, void, env, int)
DEF_HELPER_2(monitor, void, env, tl)
DEF_HELPER_2(mwait, void, env, int)
DEF_HELPER_2(pause, void, env, int)
DEF_HELPER_1(debug, void, env)
DEF_HELPER_1(reset_rf, void, env)
DEF_HELPER_3(raise_interrupt, void, env, int, int)
DEF_HELPER_2(raise_exception, void, env, int)
DEF_HELPER_1(cli, void, env)
DEF_HELPER_1(sti, void, env)
DEF_HELPER_1(clac, void, env)
DEF_HELPER_1(stac, void, env)
DEF_HELPER_3(boundw, void, env, tl, int)
DEF_HELPER_3(boundl, void, env, tl, int)
DEF_HELPER_1(rsm, void, env)
DEF_HELPER_2(into, void, env, int)
DEF_HELPER_2(cmpxchg8b_unlocked, void, env, tl)
DEF_HELPER_2(cmpxchg8b, void, env, tl)
#ifdef TARGET_X86_64
DEF_HELPER_2(cmpxchg16b_unlocked, void, env, tl)
DEF_HELPER_2(cmpxchg16b, void, env, tl)
#endif
DEF_HELPER_1(single_step, void, env)
DEF_HELPER_1(cpuid, void, env)
DEF_HELPER_1(rdtsc, void, env)
DEF_HELPER_1(rdtscp, void, env)
DEF_HELPER_1(rdpmc, void, env)
DEF_HELPER_1(rdmsr, void, env)
DEF_HELPER_1(wrmsr, void, env)
DEF_HELPER_2(check_iob, void, env, i32)
DEF_HELPER_2(check_iow, void, env, i32)
DEF_HELPER_2(check_iol, void, env, i32)
DEF_HELPER_3(outb, void, env, i32, i32)
DEF_HELPER_2(inb, tl, env, i32)
DEF_HELPER_3(outw, void, env, i32, i32)
DEF_HELPER_2(inw, tl, env, i32)
DEF_HELPER_3(outl, void, env, i32, i32)
DEF_HELPER_2(inl, tl, env, i32)
DEF_HELPER_FLAGS_4(bpt_io, TCG_CALL_NO_WG, void, env, i32, i32, tl)
DEF_HELPER_3(svm_check_intercept_param, void, env, i32, i64)
DEF_HELPER_3(vmexit, void, env, i32, i64)
DEF_HELPER_4(svm_check_io, void, env, i32, i32, i32)
DEF_HELPER_3(vmrun, void, env, int, int)
DEF_HELPER_1(vmmcall, void, env)
DEF_HELPER_2(vmload, void, env, int)
DEF_HELPER_2(vmsave, void, env, int)
DEF_HELPER_1(stgi, void, env)
DEF_HELPER_1(clgi, void, env)
DEF_HELPER_1(skinit, void, env)
DEF_HELPER_2(invlpga, void, env, int)
/* x86 FPU */
DEF_HELPER_2(flds_FT0, void, env, i32)
DEF_HELPER_2(fldl_FT0, void, env, i64)
DEF_HELPER_2(fildl_FT0, void, env, s32)
DEF_HELPER_2(flds_ST0, void, env, i32)
DEF_HELPER_2(fldl_ST0, void, env, i64)
DEF_HELPER_2(fildl_ST0, void, env, s32)
DEF_HELPER_2(fildll_ST0, void, env, s64)
DEF_HELPER_1(fsts_ST0, i32, env)
DEF_HELPER_1(fstl_ST0, i64, env)
DEF_HELPER_1(fist_ST0, s32, env)
DEF_HELPER_1(fistl_ST0, s32, env)
DEF_HELPER_1(fistll_ST0, s64, env)
DEF_HELPER_1(fistt_ST0, s32, env)
DEF_HELPER_1(fisttl_ST0, s32, env)
DEF_HELPER_1(fisttll_ST0, s64, env)
DEF_HELPER_2(fldt_ST0, void, env, tl)
DEF_HELPER_2(fstt_ST0, void, env, tl)
DEF_HELPER_1(fpush, void, env)
DEF_HELPER_1(fpop, void, env)
DEF_HELPER_1(fdecstp, void, env)
DEF_HELPER_1(fincstp, void, env)
DEF_HELPER_2(ffree_STN, void, env, int)
DEF_HELPER_1(fmov_ST0_FT0, void, env)
DEF_HELPER_2(fmov_FT0_STN, void, env, int)
DEF_HELPER_2(fmov_ST0_STN, void, env, int)
DEF_HELPER_2(fmov_STN_ST0, void, env, int)
DEF_HELPER_2(fxchg_ST0_STN, void, env, int)
DEF_HELPER_1(fcom_ST0_FT0, void, env)
DEF_HELPER_1(fucom_ST0_FT0, void, env)
DEF_HELPER_1(fcomi_ST0_FT0, void, env)
DEF_HELPER_1(fucomi_ST0_FT0, void, env)
DEF_HELPER_1(fadd_ST0_FT0, void, env)
DEF_HELPER_1(fmul_ST0_FT0, void, env)
DEF_HELPER_1(fsub_ST0_FT0, void, env)
DEF_HELPER_1(fsubr_ST0_FT0, void, env)
DEF_HELPER_1(fdiv_ST0_FT0, void, env)
DEF_HELPER_1(fdivr_ST0_FT0, void, env)
DEF_HELPER_2(fadd_STN_ST0, void, env, int)
DEF_HELPER_2(fmul_STN_ST0, void, env, int)
DEF_HELPER_2(fsub_STN_ST0, void, env, int)
DEF_HELPER_2(fsubr_STN_ST0, void, env, int)
DEF_HELPER_2(fdiv_STN_ST0, void, env, int)
DEF_HELPER_2(fdivr_STN_ST0, void, env, int)
DEF_HELPER_1(fchs_ST0, void, env)
DEF_HELPER_1(fabs_ST0, void, env)
DEF_HELPER_1(fxam_ST0, void, env)
DEF_HELPER_1(fld1_ST0, void, env)
DEF_HELPER_1(fldl2t_ST0, void, env)
DEF_HELPER_1(fldl2e_ST0, void, env)
DEF_HELPER_1(fldpi_ST0, void, env)
DEF_HELPER_1(fldlg2_ST0, void, env)
DEF_HELPER_1(fldln2_ST0, void, env)
DEF_HELPER_1(fldz_ST0, void, env)
DEF_HELPER_1(fldz_FT0, void, env)
DEF_HELPER_1(fnstsw, i32, env)
DEF_HELPER_1(fnstcw, i32, env)
DEF_HELPER_2(fldcw, void, env, i32)
DEF_HELPER_1(fclex, void, env)
DEF_HELPER_1(fwait, void, env)
DEF_HELPER_1(fninit, void, env)
DEF_HELPER_2(fbld_ST0, void, env, tl)
DEF_HELPER_2(fbst_ST0, void, env, tl)
DEF_HELPER_1(f2xm1, void, env)
DEF_HELPER_1(fyl2x, void, env)
DEF_HELPER_1(fptan, void, env)
DEF_HELPER_1(fpatan, void, env)
DEF_HELPER_1(fxtract, void, env)
DEF_HELPER_1(fprem1, void, env)
DEF_HELPER_1(fprem, void, env)
DEF_HELPER_1(fyl2xp1, void, env)
DEF_HELPER_1(fsqrt, void, env)
DEF_HELPER_1(fsincos, void, env)
DEF_HELPER_1(frndint, void, env)
DEF_HELPER_1(fscale, void, env)
DEF_HELPER_1(fsin, void, env)
DEF_HELPER_1(fcos, void, env)
DEF_HELPER_3(fstenv, void, env, tl, int)
DEF_HELPER_3(fldenv, void, env, tl, int)
DEF_HELPER_3(fsave, void, env, tl, int)
DEF_HELPER_3(frstor, void, env, tl, int)
DEF_HELPER_FLAGS_2(fxsave, TCG_CALL_NO_WG, void, env, tl)
DEF_HELPER_FLAGS_2(fxrstor, TCG_CALL_NO_WG, void, env, tl)
DEF_HELPER_FLAGS_3(xsave, TCG_CALL_NO_WG, void, env, tl, i64)
DEF_HELPER_FLAGS_3(xsaveopt, TCG_CALL_NO_WG, void, env, tl, i64)
DEF_HELPER_FLAGS_3(xrstor, TCG_CALL_NO_WG, void, env, tl, i64)
DEF_HELPER_FLAGS_2(xgetbv, TCG_CALL_NO_WG, i64, env, i32)
DEF_HELPER_FLAGS_3(xsetbv, TCG_CALL_NO_WG, void, env, i32, i64)
DEF_HELPER_FLAGS_2(rdpkru, TCG_CALL_NO_WG, i64, env, i32)
DEF_HELPER_FLAGS_3(wrpkru, TCG_CALL_NO_WG, void, env, i32, i64)
DEF_HELPER_FLAGS_1(clz_x86, TCG_CALL_NO_RWG_SE, tl, tl)
#ifdef TARGET_I386
#define helper_clz helper_clz_x86
#define gen_helper_clz gen_helper_clz_x86
#endif
DEF_HELPER_FLAGS_1(ctz, TCG_CALL_NO_RWG_SE, tl, tl)
DEF_HELPER_FLAGS_2(pdep, TCG_CALL_NO_RWG_SE, tl, tl, tl)
DEF_HELPER_FLAGS_2(pext, TCG_CALL_NO_RWG_SE, tl, tl, tl)
/* MMX/SSE */
DEF_HELPER_2(ldmxcsr, void, env, i32)
DEF_HELPER_1(enter_mmx, void, env)
DEF_HELPER_1(emms, void, env)
DEF_HELPER_3(movq, void, env, ptr, ptr)
#define SHIFT 0
#include "ops_sse_header.h"
#define SHIFT 1
#include "ops_sse_header.h"
DEF_HELPER_3(rclb, tl, env, tl, tl)
DEF_HELPER_3(rclw, tl, env, tl, tl)
DEF_HELPER_3(rcll, tl, env, tl, tl)
DEF_HELPER_3(rcrb, tl, env, tl, tl)
DEF_HELPER_3(rcrw, tl, env, tl, tl)
DEF_HELPER_3(rcrl, tl, env, tl, tl)
#ifdef TARGET_X86_64
DEF_HELPER_3(rclq, tl, env, tl, tl)
DEF_HELPER_3(rcrq, tl, env, tl, tl)
#endif
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