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| author | Robert Morris <rtm@csail.mit.edu> | 2019-06-05 14:05:46 -0400 |
|---|---|---|
| committer | Robert Morris <rtm@csail.mit.edu> | 2019-06-05 14:05:46 -0400 |
| commit | 31136437684b5987ef46f4c6947940cf96de75b3 (patch) | |
| tree | 3c89b1f0e12bbddbf307259326ecb5f763ba6e09 /trap.c | |
| parent | f1a727b971a59bab6025b4c4111342c27356ca40 (diff) | |
| download | xv6-labs-31136437684b5987ef46f4c6947940cf96de75b3.tar.gz xv6-labs-31136437684b5987ef46f4c6947940cf96de75b3.tar.bz2 xv6-labs-31136437684b5987ef46f4c6947940cf96de75b3.zip | |
spinlocks using gcc intrinsics
push_off() / pop_off()
set up per-hart plic stuff so all harts get device interrupts
Diffstat (limited to 'trap.c')
| -rw-r--r-- | trap.c | 10 |
1 files changed, 6 insertions, 4 deletions
@@ -19,12 +19,14 @@ extern int devintr(); void trapinit(void) { - int i; + initlock(&tickslock, "time"); +} - // set up to take exceptions and traps while in the kernel. +// set up to take exceptions and traps while in the kernel. +void +trapinithart(void) +{ w_stvec((uint64)kernelvec); - - initlock(&tickslock, "time"); } // |