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| author | Andrew Waterman <waterman@cs.berkeley.edu> | 2016-05-05 17:07:04 -0700 |
|---|---|---|
| committer | Andrew Waterman <waterman@cs.berkeley.edu> | 2016-05-05 17:07:04 -0700 |
| commit | 1bcab7872c6ae98ab86cdc1a3f567fd263e723d7 (patch) | |
| tree | 064c07519643d791b76d2fc2a6157eef15df28e0 /machine/mentry.S | |
| parent | 552bc9bf1b09dc33a38d01a9027862ee681072e4 (diff) | |
| download | riscv-pk-1bcab7872c6ae98ab86cdc1a3f567fd263e723d7.zip riscv-pk-1bcab7872c6ae98ab86cdc1a3f567fd263e723d7.tar.gz riscv-pk-1bcab7872c6ae98ab86cdc1a3f567fd263e723d7.tar.bz2 | |
Poll HTIF console on timer interrupt
Diffstat (limited to 'machine/mentry.S')
| -rw-r--r-- | machine/mentry.S | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/machine/mentry.S b/machine/mentry.S index 4895227..6bdc7e6 100644 --- a/machine/mentry.S +++ b/machine/mentry.S @@ -20,7 +20,9 @@ trap_table: .word bad_trap #define SOFTWARE_INTERRUPT_VECTOR 12 .word software_interrupt -#define TRAP_FROM_MACHINE_MODE_VECTOR 13 +#define TIMER_INTERRUPT_VECTOR 13 + .word timer_interrupt +#define TRAP_FROM_MACHINE_MODE_VECTOR 14 .word __trap_from_machine_mode .option norvc @@ -49,11 +51,8 @@ trap_vector: # Is it a machine timer interrupt? li a0, IRQ_M_TIMER * 2 bne a0, a1, 1f - # Yes. Post a supervisor timer interrupt. - li a0, MIP_MTIP - csrc mie, a0 - li a0, MIP_STIP - csrs mip, a0 + li a1, TIMER_INTERRUPT_VECTOR + j .Lhandle_trap_in_machine_mode .Lmret: # Go back whence we came. |