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mips: Implement suword16

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This fixes building USB-using kernels after 0ec590d24e.

Fixes:		0ec590d24e ("usb: add 32-bit compat for FIFOs")
This commit is contained in:
Jessica Clarke 2021-12-19 12:48:49 +00:00
parent eb771bf6f4
commit ac672e747f
1 changed files with 13 additions and 0 deletions
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13
sys/mips/mips/support.S
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@ -272,6 +272,19 @@ LEAF(fubyte)
PTR_S zero, U_PCB_ONFAULT(v1)
END(fubyte)
LEAF(suword16)
PTR_LA v0, fswberr
blt a0, zero, fswberr # make sure address is in user space
nop
GET_CPU_PCPU(v1)
PTR_L v1, PC_CURPCB(v1)
PTR_S v0, U_PCB_ONFAULT(v1)
sh a1, 0(a0) # store short
PTR_S zero, U_PCB_ONFAULT(v1)
j ra
move v0, zero
END(suword16)
LEAF(suword32)
#ifndef __mips_n64
XLEAF(suword)