From 8dda7b2034197109a2387ac3dd03c7ad1e8c0b65 Mon Sep 17 00:00:00 2001 From: Andrew Waterman Date: Wed, 6 Apr 2016 10:29:08 -0700 Subject: [PATCH 1/1] Don't use stats register; refer to uarch counters by number --- benchmarks/common/syscalls.c | 15 +++++---------- env | 2 +- 2 files changed, 6 insertions(+), 11 deletions(-) diff --git a/benchmarks/common/syscalls.c b/benchmarks/common/syscalls.c index d391013..87fd358 100644 --- a/benchmarks/common/syscalls.c +++ b/benchmarks/common/syscalls.c @@ -39,9 +39,6 @@ static long counters[NUM_COUNTERS]; static char* counter_names[NUM_COUNTERS]; static int handle_stats(int enable) { - //use csrs to set stats register - if (enable) - asm volatile ("csrrs a0, stats, 1" ::: "a0"); int i = 0; #define READ_CTR(name) do { \ while (i >= NUM_COUNTERS) ; \ @@ -50,13 +47,11 @@ static int handle_stats(int enable) counters[i++] = csr; \ } while (0) READ_CTR(mcycle); READ_CTR(minstret); - READ_CTR(uarch0); READ_CTR(uarch1); READ_CTR(uarch2); READ_CTR(uarch3); - READ_CTR(uarch4); READ_CTR(uarch5); READ_CTR(uarch6); READ_CTR(uarch7); - READ_CTR(uarch8); READ_CTR(uarch9); READ_CTR(uarch10); READ_CTR(uarch11); - READ_CTR(uarch12); READ_CTR(uarch13); READ_CTR(uarch14); READ_CTR(uarch15); + READ_CTR(0xcc0); READ_CTR(0xcc1); READ_CTR(0xcc2); READ_CTR(0xcc3); + READ_CTR(0xcc4); READ_CTR(0xcc5); READ_CTR(0xcc6); READ_CTR(0xcc7); + READ_CTR(0xcc8); READ_CTR(0xcc9); READ_CTR(0xcca); READ_CTR(0xccb); + READ_CTR(0xccc); READ_CTR(0xccd); READ_CTR(0xcce); READ_CTR(0xccf); #undef READ_CTR - if (!enable) - asm volatile ("csrrc a0, stats, 1" ::: "a0"); return 0; } @@ -69,7 +64,7 @@ void tohost_exit(long code) long handle_trap(long cause, long epc, long regs[32]) { int* csr_insn; - asm ("jal %0, 1f; csrr a0, 0x0; 1:" : "=r"(csr_insn)); + asm ("jal %0, 1f; csrr a0, 0xcc0; 1:" : "=r"(csr_insn)); long sys_ret = 0; if (cause == CAUSE_ILLEGAL_INSTRUCTION && diff --git a/env b/env index ef1457f..0fc8404 160000 --- a/env +++ b/env @@ -1 +1 @@ -Subproject commit ef1457fa7a3bf3fd58dadd0f30002828b353e573 +Subproject commit 0fc840489c21530a8bfdaecac1131fcd20bdaea2 -- 2.30.2