diff options
Diffstat (limited to 'system/alpha/console/dbmentry.s')
| -rw-r--r-- | system/alpha/console/dbmentry.s | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/system/alpha/console/dbmentry.s b/system/alpha/console/dbmentry.s index d8741e658..7a718928b 100644 --- a/system/alpha/console/dbmentry.s +++ b/system/alpha/console/dbmentry.s @@ -209,5 +209,34 @@ SpinLock: 2: br zero,1b .end SpinLock + + .globl loadContext + .ent loadContext 2 +loadContext: + .option O1 + .frame sp, 0, ra + call_pal PAL_SWPCTX_ENTRY + ret zero, (ra) + .end loadContext + - + .globl SlaveSpin # Very carefully spin wait + .ent SlaveSpin 2 # and swap context without +SlaveSpin: # using any stack space + .option O1 + .frame sp, 0, ra + mov a0, t0 # cpu number + mov a1, t1 # cpu rpb pointer (virtual) + mov a2, t2 # what to spin on + +test: ldl t3, 0(t2) + beq t3, test + zapnot t1,0x1f,a0 # make rpb physical + call_pal PAL_SWPCTX_ENTRY # switch to pcb + mov t0, a0 # setup args for SlaveCmd + mov t1, a1 + jsr SlaveCmd # call SlaveCmd + ret zero, (ra) # Should never be reached + .end SlaveSpin + + |